Electromechanical pipeline comprehensive arrangement evaluation implementation system and application evaluation method
By adopting modular construction technology and BIM technology of prefabricated pipe synthesis in construction electromechanical installation projects, the problems of low efficiency, frequent collisions and space limitations in the construction of electromechanical pipelines are solved, and more efficient and higher quality are achieved construction effect.
Patent Information
- Application Number
- CN202411450081.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2025-02-18
AI Technical Summary
In construction electromechanical installation projects, the comprehensive arrangement and construction of all mechanical and electrical pipelines has problems such as low construction efficiency, frequent pipeline collisions and conflicts, limited construction space, difficult employment, high labor costs, and frequent pipeline dismantling and modification.
Using the modular construction technology of prefabricated pipe fusion, the frame-type fixed bracket is used as the modular frame carrier of the electromechanical integrated pipeline, combined with BIM technology to carry out in-depth design and collision detection, realize modular prefabrication and rapid assembly, and form the modular pipe fusion Build an application effect evaluation system.
It improves the construction efficiency and construction quality of all mechanical and electrical pipelines, solves the problems of pipeline collision and conflict and limited construction space, reduces labor costs and construction risks, and achieves more reasonable space utilization and higher installation firmness.
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Figure CN119477033A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of integrated pipeline layout of building electromechanical installation engineering, and in particular to an evaluation implementation system and an application evaluation method for the integrated layout of electromechanical pipelines. Background Art
[0002] With the rapid development of cities and the continuous innovation of technology, the use of electromechanical equipment has become more and more extensive, and the types and quantities of equipment and electromechanical pipelines have gradually increased. The ultimate goal of electromechanical construction is to ensure that each electromechanical system can realize its functions and meet the conditions for building use, so as to meet the needs of project acceptance and owner's move-in. This makes the building electromechanical installation project more and more a key project in the entire building. At the same time, the in-depth design of the comprehensive layout of electromechanical pipelines is the core content of the electromechanical installation project.
[0003] Since the integrated layout technology of pipelines in building electromechanical installation projects involves many fields, various design schemes that make the integrated layout of electromechanical pipelines more scientific and reasonable emerge in an endless stream. At the same time, with the owners' higher and higher requirements for electromechanical integrated pipelines and stricter acceptance, the following problems are encountered in the integrated layout construction of electromechanical pipelines:
[0004] 1. The comprehensive layout of all-professional pipelines for electromechanical engineering has problems such as low construction efficiency, frequent collisions between professional pipelines, multiple cross-processes, and limited construction space;
[0005] Second, the mechanical and electrical engineering pipelines have the problem of difficulty in hiring workers and high labor costs, especially for the comprehensive layout construction stage of all professional pipelines, which requires high experience, ability and process technology level of construction personnel;
[0006] 3. Due to the limited construction and management capabilities of the comprehensive layout of electromechanical pipelines, pipelines are frequently dismantled and modified during construction, resulting in high electromechanical engineering costs and management costs;
[0007] Fourth, the common brackets commonly used in the construction of integrated pipelines today are in the field of steel structure. Mechanical and electrical design personnel lack the ability to design the common brackets in depth, resulting in unreasonable structure and selection of the common brackets for integrated pipelines, poor structural stress and low visual quality;
[0008] 5. The existing in-depth design of electromechanical pipeline layout relies too much on the personal work experience of the in-depth designers. There is a lack of a unified evaluation system for the in-depth design of the integrated layout of electromechanical pipelines and an evaluation method for the application effect. It is impossible to adjust the overall in-depth design of the integrated layout of pipelines according to specific pipeline layout indicators.
[0009] In the present invention, multiple names involved in the integration of all mechanical and electrical professional pipelines, including pipeline integration, pipeline integration, integrated pipeline, and pipeline all refer to the same object.
[0010] Therefore, what method to adopt for mechanical and electrical pipeline construction and how to evaluate the application of this construction method to ensure its construction efficiency and quality have become the key issues that should be considered under the current concept of assembled construction. The pipeline support structure, the method of comprehensive pipeline layout and the implementation process have become one of the most important technical topics in building mechanical and electrical installation projects. Summary of the invention
[0011] At least one of the purposes of the present invention is to provide an evaluation implementation system and application evaluation method for the comprehensive layout of electromechanical pipelines, aiming at the problems of low efficiency, frequent collisions and conflicts among professional pipelines, and limited construction space in the existing comprehensive layout construction of all-professional electromechanical pipelines. The comprehensive layout evaluation implementation system for electromechanical pipelines adopts the modular construction technology of prefabricated prefabricated pipe complexes as the implementation content of the implementation stage of all-professional electromechanical pipelines, and evaluates the application effect of the modular construction of pipe complexes from multiple evaluation indicators, thereby forming an evaluation system for the application effect of the modular construction of pipe complexes, and evaluates the modular construction technology of all-professional electromechanical pipelines based on the evaluation system for the application effect of the modular construction of pipe complexes, so as to determine whether the technology adopted in the comprehensive layout evaluation system for electromechanical pipelines meets the requirements of construction efficiency and construction quality, and whether the technology is in line with the current concept of assembled building construction, so as to provide a scientific, reasonable and concrete reference basis for whether the modular construction method of all-professional electromechanical pipelines meets the requirements of cost, net height, work efficiency, etc., and ensure the accuracy and rationality of the application evaluation.
[0012] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention includes the following aspects.
[0013] A comprehensive layout evaluation and implementation system for electromechanical pipelines, which adopts modular construction technology of prefabricated pipe complexes as the implementation content of the electromechanical full-professional pipeline implementation stage, and evaluates the application effect of modular construction of pipe complexes from multiple evaluation indicators, thereby forming an evaluation system for the application effect of modular construction of pipe complexes. The modular construction technology of prefabricated pipe complexes includes adopting modular frame-type fixed brackets as modular framework carriers of electromechanical integrated pipelines, and the frame-type fixed brackets include vertical pillars and transverse pillars, and the vertical pillars and transverse pillars are vertically connected on the same plane to form a plane frame structure. Multiple groups of the plane frame structures are arranged in parallel. The frame-type fixed brackets also It includes longitudinal struts for connecting multiple groups of parallel planar frame structures to form an integral whole, and triangular reinforcement struts for reinforcing the planar frame structure, the two ends of the triangular reinforcement struts are respectively connected to the vertical struts and the transverse struts through connecting pieces, and the angle between the triangular reinforcement struts and the transverse struts is between 30-60 degrees. Scissor struts are also arranged between the vertical struts on the same side of two adjacent planar frame structures, and the ends of the scissor struts are connected and fixed to the vertical struts through connecting pieces. The tops of the vertical struts are also connected to fixed legs, and the fixed legs are used to be connected to the building structure. Except for the fixed legs, the remaining components of the frame-type fixed bracket are assembled in advance and connected and installed with the fixed legs as a whole.
[0014] Multiple evaluation indicators include function realization, pipeline project cost, floor net height, operation and maintenance space, and pipeline layout visual perception. The implementation stages of the electromechanical full-professional pipeline include: electromechanical full-professional pipeline design stage, electromechanical full-professional pipeline disassembly and prefabrication stage, electromechanical full-professional pipeline transportation stage, electromechanical full-professional pipeline assembly and adjustment stage, and delivery and operation stage.
[0015] Preferably, the modular construction technology of prefabricated pipe bundles is used to complete the implementation of the electromechanical pipeline implementation phase, including modular frame-type fixed brackets and pipe bundles:
[0016] The implementation content of the mechanical and electrical pipeline design phase includes: ① using modeling software to comprehensively arrange the mechanical and electrical pipelines; ② using collision monitoring software to conduct collision inspection and deepen the design to form a construction BIM; ③ the prefabricated factory receives the construction BIM and divides the comprehensive pipeline model into sections;
[0017] The implementation content of the mechanical and electrical full professional pipeline splitting prefabrication stage includes: processing and prefabrication of the single materials of each module formed after segmentation, and conducting experiments one by one, including pressure test and light leakage test;
[0018] The implementation content of the mechanical and electrical full professional pipeline transportation stage includes: marking the prefabricated modules with QR codes, associating them with the corresponding BIM modules, and transporting them to the installation construction site and installation location;
[0019] The implementation content of the mechanical and electrical full professional pipeline assembly and adjustment stage includes: on-site connection and assembly of the module, including connecting the pipeline and installing the frame-type fixing bracket. Before installation, the height and flatness are adjusted by multiple adjustment fixing brackets connected to the frame-type fixing bracket. The adjustment fixing bracket is arranged near the joints of the vertical pillars, the transverse pillars and the longitudinal pillars. The adjustment fixing bracket includes an anchor bolt, an adjustment clamp (502) and a support adjustment rod. The anchor bolt is used to be pre-buried in the building structure. The support adjustment rod passes through all the longitudinal pillars of the frame-type fixing bracket in the height direction and is connected to the frame-type fixing bracket. The bracket is fixedly connected, the adjustment clamp is a square frame structure formed by enclosing square plates, and the upper and lower side square plates are adjustably connected to the anchor bolt and the support adjustment rod respectively, so that the relative position between the anchor bolt, the support adjustment rod and the adjustment clamp can be moved, and the fixed support leg includes a sliding column and a fixing seat, and the fixed support leg is slidably connected to the vertical support leg, so that the fixed support leg can slide and extend along the length direction of the vertical support leg, and a fixing structure is provided on the fixed support leg and the vertical support leg, which is used to adjust the fixed bracket to adjust the frame-type fixed bracket into place, and fix the fixed support leg and the vertical support leg in the state after sliding into place;
[0020] The implementation content of the delivery and operation stage includes: comprehensive pipeline testing and trial operation, monitoring the working status of the frame-type fixed support when the integrated pipeline is in operation, recording working parameter data, and entering BIM and QR code after application effect evaluation, and storing them in the modular delivery system.
[0021] Correspondingly, the technical solution also provides an application evaluation method for the comprehensive layout of electromechanical pipelines. When the above-mentioned comprehensive layout evaluation implementation system of electromechanical pipelines is used to evaluate the modular construction technology of electromechanical pipelines, the method includes the following steps:
[0022] Step A: Use BIM technology to carry out pipeline modularization and in-depth design, including using Revit software to arrange the integrated pipelines according to the pipe layout rules, and using Navisworks software to check pipeline collisions, so that the layout of the electromechanical integrated pipelines meets the set clear height standards and functional requirements;
[0023] Step B: Use pipeline modular construction technology to construct, including prefabrication of pipe modules with frame-type brackets as module frame carriers and frame-type fixed brackets, transporting each module as a whole to the site for overall hoisting, fixing the modular frame-type fixed brackets, and connecting and assembling each module unit;
[0024] Step C: Select multiple evaluation indicators to evaluate the application effect of pipeline modular construction technology. The multiple evaluation indicators include five indicators: function realization, pipeline engineering cost, pipeline net height, operation and maintenance space, and pipeline layout appearance;
[0025] Step D: Based on the pipeline modular construction application effect evaluation system, a fuzzy comprehensive evaluation method is used to evaluate the application of the modular construction technology of mechanical and electrical pipelines.
[0026] Preferably, in step A, the pipe arrangement rules include the following aspects: ① When the bridge and the water pipe are parallel at the same height, they are arranged separately horizontally; when the bridge and the cold water pipe are parallel on the same side in the vertical direction, the bridge is on the top and the water pipe is arranged on the bottom; when the bridge and the hot water pipe are parallel on the same side in the vertical direction, the bridge is on the bottom and the water pipe is arranged on the top; ② The hot medium pipe is on the top and the cold medium is on the bottom; ③ The non-corrosive medium pipe is on the top and the corrosive medium pipe is on the bottom; ④ The gas medium pipe is on the top and the liquid medium pipe is on the bottom; ⑤ The insulated pipe is on the top and the non-insulated pipe is on the bottom; ⑥ The high-pressure pipe is on the top and the low-pressure pipe is on the bottom; ⑦ The metal pipe is on the top and the non-metal pipe is on the bottom; ⑧ The pipes that are not frequently maintained are on the top and the pipes that are frequently maintained are on the bottom.
[0027] Preferably, in step D, when evaluating the application effect, an evaluation score is determined for the degree of achievement of each indicator, including the following evaluation contents:
[0028] D1: Functional realization, the score is determined based on whether it can be used normally, fire safety and usage requirements;
[0029] D2: The cost of pipeline engineering is determined by the difference ratio formula between the actual cost after deepening and the winning bid price calculated by the drawings during bidding. The formula is S = [(S 标 -S bim ) / S 标 ]×100+100, S is the pipeline engineering cost score, S 标 S is the winning bid price of the drawing quantity during bidding, bim The actual cost after BIM deepening;
[0030] D3: Clear height of pipe system. The clear height of the pipe system should not be less than the minimum clear height requirement. It is determined according to the difference ratio between the actual clear height of the pipeline and the minimum clear height requirement. The formula is H = [(H bim -H 定 ) / H 定 ]×100+100,H bim ≥H 定 , H is the pipeline net height score, H bim H is the net height value achieved after the deepening of BIM. 定 It is the minimum required clear height of the pipeline;
[0031] D4: Operation and maintenance space, determined by the volume ratio of the remaining space of the pipeline above the clear height of the pipe complex to the overall space, the formula is, V = [(V 净 -V 管 ) / V 净 ], V is the operation and maintenance space score, V 净 V is the volume of space above the clear height of the pipeline. 管 It is the volume of space occupied by pipeline above the clear height of pipeline;
[0032] D5: Pipeline layout visual quality. The evaluation score is determined based on the overall visual quality of the pipeline layout.
[0033] Preferably, the application evaluation method of the integrated layout of electromechanical pipelines also includes a fuzzy comprehensive evaluation method, which is based on the application effect evaluation system of the integrated modular construction of pipelines. By establishing a factor index set and determining the weight, determining the evaluation object and dividing the safety evaluation set, selecting the membership function and constructing the judgment matrix, and finally calculating the evaluation result, the fuzzy comprehensive evaluation method specifically includes the following steps:
[0034] Step E1: Determine the factor set U, which refers to the set of factors affecting the evaluation object, U = (u1, u2, ..., u m ), (i = l, 2, ..., m), in the process of calculating the weight of each evaluation index, the relevant weight ai of each factor is determined by combining methods including hierarchical analysis method and expert survey method to distinguish the importance of each factor and form a weight set W, W = (a1, a2, ..., a n ), (i=1, 2, ..., n);
[0035] Step E2: Determination of the evaluation set. When evaluating the target project, the target project is divided into multiple evaluation levels. The evaluation results are determined according to the evaluation criteria. The evaluation set V is represented as follows:
[0036] V=(v1,v2,...,v m ), (j=1, 2, ..., m);
[0037] Step E3: Determine the degree of membership and the judgment matrix. The factor set U in step E1 is composed of m evaluation index levels to form a judgment set V. This technical solution divides the evaluation set into 5 risk levels, namely V = (I, II, III, IV, V) = (poor, qualified, general, good, excellent). The degree of membership is determined by evaluation by those with more engineering experience or confirmed by calculation based on the membership function.
[0038] Step E4: Start with a comprehensive evaluation from the lowest level and establish an evaluation matrix first
[0039]
[0040] In the formula, R is the corresponding fuzzy relationship matrix, where β ij is the degree of membership of the factor to the evaluation level;
[0041] Combined with step E1, a j (j=1, 2, 3, ... n) is the weight of the index factor, and then the weight vector W of each factor in the sub-criteria layer is obtained by the evaluation method. i , and thus the fuzzy judgment vector B of the criterion layer factors is obtained i ': B i ′=W i ·R i (i=1,2,...,m), R i The following is the evaluation matrix of each factor in the sub-criteria layer;
[0042] The fuzzy comprehensive evaluation matrix of the criterion layer factors R = [B1', B2', ..., B i '](i=1, 2, ..., m), and then use the judgment matrix R combined with the weight vector W to make a judgment on the weight distribution of many influencing factors according to the following algorithm:
[0043]
[0044] In the formula, B is the evaluation criterion, and the evaluation criterion B is a hierarchical fuzzy subset; a j (j=1, 2, 3, ... n) is the weight of the indicator factor; b j (j=1, 2, 3, ..., n) is the degree of membership of the factor index to B, that is, b j The level corresponding to the maximum value of is taken as the effect evaluation level.
[0045] In summary, due to the adoption of the above technical solution, the present invention has at least the following beneficial effects:
[0046] 1. The modular construction technology of prefabricated pipes is used as the implementation content of the electromechanical pipeline implementation stage, so that the modular construction technology of prefabricated pipes is applied in all implementation stages of the electromechanical pipeline, including the design stage, prefabrication stage, transportation and assembly stage. The modular construction technology of prefabricated pipes is used to carry out various stage operations on the frame-type fixed bracket used as the modular framework carrier of the electromechanical integrated pipeline, so that the electromechanical pipeline comprehensive layout evaluation implementation system can solve the problems of single function, low space utilization and low construction efficiency of the existing bracket.
[0047] 2. The modular frame-type fixed bracket of this scheme is used for modular installation of electromechanical integrated pipe network, which solves the problems of simple functions, low space utilization and weak safety of the traditional pipeline installation mode produced by single professional processing at the construction site. The layout and fixed support of the integrated pipeline are considered while designing the building structure. The modular overall prefabrication of the integrated pipeline factory can be realized in the prefabrication stage. After the prefabrication is completed, the prefabricated frame-type fixed bracket is directly transported to the construction and installation site together with the integrated pipeline, and connected to the building structure as a whole through the fixed support legs, or the frame-type fixed bracket is assembled at the same time and the integrated pipeline is arranged. In this way, the frame-type structure finished bracket is both a supporting component of the integrated pipeline and a structural carrier of the pipe integrated modular unit, with more complete functions, which can make full use of the building space and ensure firm installation;
[0048] 3. The above-mentioned fuzzy comprehensive evaluation method is used to evaluate the modular construction technology of all-professional pipelines of electromechanical industry based on the comprehensive modular construction application effect evaluation system, so as to determine whether the technology used in the comprehensive layout evaluation system of electromechanical pipelines meets the requirements of construction efficiency and quality, and whether the technology is in line with the current concept of assembly construction of buildings. It provides a scientific, reasonable and concrete reference basis for whether the modular construction method of all-professional pipelines of electromechanical industry meets the requirements of cost, net height and work efficiency, and ensures the accuracy and rationality of application evaluation;
[0049] 4. The application evaluation method of the comprehensive layout of electromechanical pipelines in this scheme has the advantage of strong applicability. It is analyzed from five aspects, including function realization, pipeline engineering cost, pipeline net height, operation and maintenance space, and pipeline layout appearance. According to the application evaluation, the modular construction technology of electromechanical pipelines is in line with the current concept of building assembly construction, has a good application effect in practice, and is worthy of further promotion. BRIEF DESCRIPTION OF THE DRAWINGS
[0050] Figure 1 It is a schematic diagram of the three-dimensional structure of the modular frame-type fixing bracket in the present invention.
[0051] Figure 2 Schematic diagram of the three-dimensional structure of modular integrated pipelines assembled on a frame-type fixed bracket.
[0052] Figure 3 for Figure 1 A partial enlarged view of point A in the middle.
[0053] Figure 4 It is a schematic diagram of the three-dimensional structure of a modular frame-type fixing bracket according to another embodiment of the present invention.
[0054] Figure 5 for Figure 4Schematic diagram of the three-dimensional structure of the modular integrated pipeline assembled on the frame-type fixed bracket.
[0055] Figure 6 for Figure 4 A partial enlarged view of point B in the middle.
[0056] Figure 7 This is a schematic diagram showing the functional relationship between the operation and maintenance space and the clear height of the pipe complex.
[0057] Figure 8 This is a schematic diagram showing the functional relationship between operation and maintenance space and pipeline engineering cost.
[0058] Markings in the figure: 100-frame type fixed bracket, 110-vertical pillar, 120-transverse pillar, 121-first transverse pillar, 122-second transverse pillar, 130-longitudinal pillar, 131-first longitudinal pillar, 132-second longitudinal pillar, 140-fixed support foot, 160-connecting piece, 161-first connecting piece, 163-third connecting piece, 164-fourth connecting piece, 165-fifth connecting piece, 200-pipe clamp, 300-integrated pipeline, 400-adjustable long groove, 500-adjustable fixing frame, 501-anchor bolt, 502-adjustable clamp, 503-support adjustment rod, 600-triangular reinforcement strut, 700-scissors strut. DETAILED DESCRIPTION
[0059] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments to make the purpose, technical solutions and advantages of the present invention more clearly understood. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0060] Example 1
[0061] This embodiment shows an implementation system for evaluating the comprehensive layout of electromechanical pipelines. The implementation system adopts modular construction technology of prefabricated pipe complexes as the implementation content of the implementation stage of electromechanical full-professional pipelines, and evaluates the application effect of modular construction of pipe complexes based on multiple evaluation indicators, thereby forming an evaluation system for the application effect of modular construction of pipe complexes. The modular construction technology of prefabricated pipe complexes includes using a frame-type fixed bracket as a modular framework carrier for electromechanical integrated pipelines.
[0062] like Figure 1-Figure 6As shown, the modular construction technology of the assembled prefabricated pipe system includes using a frame-type fixed bracket as a modular frame carrier of the electromechanical integrated pipeline, the frame-type fixed bracket 100 includes a vertical support 110 and a horizontal support 120, the vertical support 110 and the horizontal support 120 are vertically connected on the same plane to form a plane frame structure, and multiple groups of the plane frame structures are arranged in parallel. The frame-type fixed bracket also includes a longitudinal support 130 for connecting multiple groups of parallel plane frame structures to form a whole, and a triangular reinforcement strut 600 for reinforcing the plane frame structure, the two ends of the triangular reinforcement strut 600 are respectively connected to the vertical support 110 and the horizontal support 120 through a connecting piece 160, and the triangular reinforcement strut 600 is connected to the vertical support 110 and the horizontal support 120 through a connecting piece 160. The angle between the vertical support 110 and the horizontal support 120 is between 30 and 60 degrees. The top of the vertical support 110 is also connected to a fixed support leg 140, and the fixed support leg 140 is used to connect to the building structure. A triangular reinforcement strut structure 600 is arranged in the plane frame structure formed by splicing the vertical support 110 and the horizontal support 120, which can ensure the stability of the plane frame structure. A scissors strut 700 is also arranged between two adjacent vertical supports 110, and the ends of the scissors strut 700 are connected and fixed to the vertical support 110 through a connecting piece 160. The triangular reinforcement strut 600 and the scissors strut 700 can ensure that the modular structure of the assembled prefabricated pipe harness is firm during transportation, hoisting and operation, and will not cause distortion, dislocation or deformation. The triangular reinforcement strut 600 and the scissors strut 700 are preferably connected to the frame-type fixed bracket 100 by means of a connecting piece 160. For example, the triangular reinforcement strut 600 can adopt the structural form of the first lateral support column 121, and the connecting piece 160 adopts the structural form of the third connecting piece 163 (the third connecting piece 163 with different bending angles is selected according to the inclination angle of the triangular reinforcement strut 600). The scissors strut 700 adopts a threaded rod and is connected by a connecting piece of an L-shaped plate structure. Mounting holes are opened on the two L-shaped plate surfaces, and the scissors strut 700 is fixed to the longitudinal pillar 130 by fasteners. The triangular reinforcement strut 600 and the scissors strut 700 can be connected to the frame-type fixed bracket 100 by welding or other fixing methods.
[0063] The frame-type fixing bracket 100 can also adopt a modular structure. Except for the fixed support leg 140, the remaining components of the modular frame-type fixing bracket 100 are assembled in advance and connected and installed with the fixed support leg 140 as a whole. The longitudinal support 130 is perpendicular to the plane frame structure. The longitudinal support includes a first longitudinal support 131 and a second longitudinal support 132. The first longitudinal support 131 is connected to the outside of the vertical support 110 of multiple groups of plane frame structures, and both ends extend to the outside of the two side ends of the vertical support 110. The second longitudinal support 132 is arranged between the side surfaces of the vertical support 110 of two adjacent plane frame structures, and the two end ends of the second longitudinal support 132 are tightly fitted with the side surfaces of the vertical support 110 at both ends. The connection parts of the longitudinal support 130 and the vertical support 110 are connected to form a bracket joint through a connecting piece 160. By arranging the first longitudinal support and the second longitudinal support, and the first longitudinal support is connected to the outside of the vertical support of the plane frame structure, the number of plane frame structures can be increased according to the on-site installation requirements, and the connection with the first longitudinal support can be realized, so as to achieve the installation of integrated pipelines while The purpose of installing a new fixed bracket is to ensure accurate assembly on site. At the same time, the second longitudinal support is set to strengthen the overall strength of the frame-type fixed bracket, ensure the safety of assembly and use of the frame-type fixed bracket and the integrated pipeline. By assembling the frame-type fixed bracket of the above structure in advance, its structural safety can be ensured, so that after the modular assembly of the prefabricated pipe system, the overall modular structure is stable and reliable; the transverse support 120 includes a first transverse support 121 and a second transverse support 122, and the first transverse support 121 and the second transverse support 122 are arranged between the sides of the vertical support 110 of the single plane frame structure, and the ends of the first transverse support 121 and the second transverse support 122 are tightly fitted with the sides of the vertical support 110 at both ends. By arranging the first transverse support 121 and the second transverse support 122, the transverse support can be increased or decreased according to the arrangement and assembly of the integrated pipeline on the frame-type fixed bracket, which is used to strengthen the strength of the frame-type fixed bracket. The first transverse support 121 and the second transverse support 122 are used to install integrated pipelines 300 of different models, and the integrated pipeline 400 is installed and fixed on the transverse support by the pipe clamp 200;
[0064] By assembling the frame-type fixed bracket of the above structure in advance, the structural safety can be ensured, so that after the modular assembly of the prefabricated pipe system, the overall modular structure is stable and reliable. Specifically, the vertical pillars and the horizontal pillars, and the vertical pillars and the longitudinal pillars are connected and fixed by connecting pieces 160, thereby forming a strong and reliable frame-type fixed bracket joint, so that the frame-type fixed bracket forms a stable three-dimensional integrated pipeline support system, which is not only a supporting component of the integrated pipeline, but also a structural carrier of the modular unit of the integrated pipeline. It can be prefabricated as a whole in advance at ICBC, thereby improving the accuracy of production and on-site assembly. Moreover, the most important thing about this construction method is that it solves the problem encountered in the existing integrated pipeline installation that the bracket needs to be installed before the pipeline can be arranged and installed, overcomes the serious problem of idle work in the process connection, can install the fixed bracket and arrange and install the integrated pipeline at the same time, and greatly improves the construction efficiency.
[0065] The fixed support leg 140 includes a sliding column 141 and a fixing seat 142. The fixed support leg 140 is slidably connected to the vertical support 110 so that the fixed support leg 140 can slide and extend along the length direction of the vertical support 110. The fixed support leg 140 and the vertical support 110 are provided with a fixing structure for fixing the two after sliding into place. The vertical support 110, the transverse support 120 and the longitudinal support 130 are provided with an adjustment slot 400 and an adjustment slot 150. Figure 6 As shown in the partial structure, when the connecting piece 160 is used to fix the joints of the frame-type fixing bracket 100, the errors in the production process of the civil structure and the electromechanical pipe module can be adjusted and eliminated by adjusting the slot 150 and the adjusting long slot 400, so as to achieve fast and accurate assembly. For example, the integrated pipeline can be fixedly installed at any lateral displacement position on the transverse support 120 through the pipe clamp 200, and the vertical support 110, the transverse support 120 and the longitudinal support 130 can also be moved left and right, up and down, and forward and backward at the adjusting long slot 400 and the adjusting slot 150, so as to effectively eliminate the error redundancy of the structural construction and module processing and production.
[0066] The connector 160 used for fixing each joint in the frame-type fixed bracket 100 includes a first connector 161, a second connector 162, a third connector 163, a fourth connector 164 and a fifth connector 165. The first connector 161 is used to fix the first longitudinal pillar 131 on the outside of the vertical pillar 110, the second connector 162 is used to fix the second longitudinal pillar 132 on the outer side of the vertical pillar 110, the third connector 163 is used to fix the first transverse pillar 121 on the outer side of the vertical pillar 110, the fourth connector 164 is used for the joint occasion where the second transverse pillar 122 is vertically arranged on both sides of the vertical pillar 110, and the fifth connector 165 is used for the joint occasion where the second transverse pillar 122 is vertically arranged on one side of the vertical pillar 110. The use of the above-mentioned modular frame-type fixed bracket structure can further improve the stability of the bracket structure.
[0067] Multiple evaluation indicators include function realization, pipeline engineering cost, pipeline net height, operation and maintenance space and pipeline layout appearance. The implementation stages of the electromechanical pipeline include: electromechanical pipeline design stage, electromechanical pipeline splitting and prefabrication stage, electromechanical pipeline transportation stage, electromechanical pipeline assembly and adjustment stage and delivery and operation stage.
[0068] The modular construction technology of prefabricated pipe bundles is adopted as the implementation content of the implementation stage of the electromechanical pipeline, so that the modular construction technology of prefabricated pipe bundles is applied in all implementation stages of the electromechanical pipeline, including the modular construction technology of prefabricated pipe bundles in the design stage, prefabrication stage, transportation and assembly stage, so as to perform various stage operations on the frame-type fixed bracket used as the modular installation structure carrier of the electromechanical integrated pipeline, so that the electromechanical pipeline comprehensive layout evaluation implementation system can solve the problems of single function of existing brackets, poor structural stress, low space utilization and low construction efficiency;
[0069] Using multiple evaluation indicators to evaluate the application effect of the modular construction technology of prefabricated pipe complexes after implementation can objectively and truly reflect the advantages of the modular construction technology of prefabricated pipe complexes, including the advantages and characteristics at each implementation stage, thereby promoting the utilization and popularization of the modular construction technology of prefabricated pipe complexes.
[0070] The frame-type fixed bracket of the present embodiment is used as a modular frame carrier of the electromechanical integrated pipeline, which solves the problems of simple functions, low space utilization and weak safety of the traditional pipeline installation mode produced by a single professional processing at the construction site. The layout and fixed support of the integrated pipeline are considered while designing the building structure, and the modular overall prefabrication in the integrated pipeline factory can be realized in the prefabrication stage. After the prefabrication is completed, the prefabricated frame-type fixed bracket is directly transported to the construction and installation site together with the integrated pipeline, and is integrally connected to the building structure through the fixed support legs, or the frame-type fixed bracket is assembled at the same time and the integrated pipeline is arranged. In this way, the frame-type structure finished bracket is both a supporting member of the integrated pipeline and a frame carrier of the pipe integrated modular unit, and the function is more complete and perfect, and the building space can be fully utilized, and the installation is guaranteed to be firm.
[0071] Moreover, the frame-type fixed bracket of the present technical solution forms a three-dimensional integrated pipeline support system, which has a more reasonable structure and better force-bearing performance. The bracket not only bears longitudinal force, but also is very stable under lateral force. After the bracket and the integrated pipeline are installed, there will be no problems such as scattering or loosening, thereby ensuring the safe installation and use of the frame-type fixed bracket.
[0072] In the evaluation and implementation system for the comprehensive layout of electromechanical pipelines, the modular construction technology of prefabricated pipe systems is applied to multiple implementation stages of electromechanical pipelines, and implementation evaluation is carried out, which can achieve the purpose of improving construction efficiency and construction quality in each implementation stage. Through the evaluation and implementation in the design stage of electromechanical pipelines, the problem of frequent collisions and conflicts between pipelines of various disciplines can be solved. Through the evaluation and implementation in the splitting and prefabrication stage of electromechanical pipelines, the comprehensive pipeline production quality and production efficiency can be improved. At the same time, through the assembly and adjustment stage of electromechanical pipelines, the functional realization requirements can be met, fast and accurate assembly can be achieved, and high process assembly quality can be guaranteed.
[0073] The modular construction technology of prefabricated pipe system is used to complete the implementation of the mechanical and electrical pipeline implementation phase, including:
[0074] The implementation content of the electromechanical pipeline design stage includes: using BIM technology to carry out comprehensive layout of electromechanical pipelines, including using Revit software to arrange comprehensive pipelines, and using Navisworks software to check pipeline collisions; the prefabricated factory receives the construction BIM and divides the comprehensive pipeline model into sections; the comprehensive pipelines in the pipeline concentrated area, such as the corridor outside the machine room and the middle corridor of the hotel guest room, are generally divided into sections of 3 to 6 meters. In this embodiment, according to the factory standard length of the pipe used, 6 meters is used as the standard section length of the straight section, rather than the standard section, such as the turning section, the first and last sections, and the height difference conversion section, the length is divided by comprehensively considering the actual conditions such as material properties, processing methods, and installation convenience; each section of the comprehensive pipeline model is called a module, and the manufacturer further carries out model deepening design according to the prefabrication processing needs, so that the BIM accuracy meets the process processing and manufacturing requirements, and at the same time deepens the structure of the pipe heald frame bracket; separate the various single materials of each module, determine the connection form of each professional pipe between the modules, and meet the needs of workshop workers to cut materials for production;
[0075] The implementation content of the prefabrication stage of the mechanical and electrical pipeline splitting includes: processing and prefabrication of single materials in each module, and conducting necessary quality tests such as pressure test and light leakage test one by one; the pipe complex module is a standard section, first of all, ensure that the installation process quality of the single professional pipeline in each module meets the set quality standards, such as the test pressure of the water supply pipeline system is 1.5 times the working pressure, but not less than 0.6MPa, observe for 10 minutes under the test pressure, the pressure drop should not be greater than 0.02MPa, and then reduce to the working pressure for inspection to ensure that there is no seepage or leakage; the inspection of air ducts is mainly based on main pipes and trunk pipes, and the low-pressure system air duct has no more than 2 light leakage points per 10m joints, and the average number of light leakage points per 100m joints is no more than 16; the medium-pressure system air duct has no more than 1 light leakage point per 10m joints, and the average number of light leakage points per 100m joints is no more than 8;
[0076] The implementation content of the mechanical and electrical pipeline transportation stage includes: marking the prefabricated modules with QR codes, associating them with the corresponding BIM modules, and transporting them to the installation site; the installation site conducts on-site acceptance based on the QR code information and relevant factory test data; and transporting the modules one by one to the installation location based on the location information on the module QR code.
[0077] The implementation content of the mechanical and electrical full-professional pipeline assembly and adjustment stage includes: precise on-site connection and assembly of modules, and the overall accuracy of module installation must meet the highest accuracy requirements of a single profession in the integrated pipeline; however, due to a certain degree of error in the civil structure itself, and the module production process inevitably has some error accumulation, which brings quality risks of inaccurate installation to the on-site installation, so the influence of errors is considered in the in-depth design stage. For example, in the modular construction technology of prefabricated prefabricated pipe complexes, the connection structure between the fixed support legs and the vertical pillars adopts a socket structure, and the two can slide up and down a certain distance (generally not more than 50mm), and the integrated pipeline can move left and right on the horizontal pillars. In this way, the overall module frame and the single pipeline in the pipe complex can make a certain degree of lateral and longitudinal displacement, thereby eliminating the unavoidable error accumulation on site and achieving high-quality and precise installation;
[0078] At the same time, multiple adjustment brackets 500 are installed on the frame type fixing bracket 100 for installation and adjustment. Figure 1-6 As shown, the adjustment fixing frame 500 includes an anchor bolt 501, an adjustment clamp 502 and a support adjustment rod 503. The anchor bolt 501 is used to be embedded in the building structure. The support adjustment rod 503 is connected to the modular overall structure of the frame-type fixing bracket 100 and the integrated pipeline 300. Specifically, a connection hole is pre-drilled on the longitudinal support 130 of the frame-type fixing bracket 100, and the support adjustment rod 503 passes through the connection hole of the longitudinal support 130 to support the frame-type fixing bracket 100 and the integrated pipeline 300. The adjustment clamp 502 is a square frame structure formed by enclosing square plates. The upper and lower side square plates are respectively provided with connection holes for connecting the anchor bolt 501 and the support adjustment rod 503. The connection sections of the anchor bolt 501 and the support adjustment rod 503 and the adjustment clamp (502) are individually or entirely screw structures. The screws of the anchor bolt 501 and the support adjustment rod 503 pass through the connection holes and are fixed with adjustment nuts. In step D, when the modular overall structure is adjusted and fixed by using the adjustment fixing frame 500, the following steps are included:
[0079] Step D′1: Anchor the anchor bolt 501 in the building structure, and connect and install the upper end of the adjusting clip 502 on the anchor bolt 501 and fix it with a nut, and rotate the nut to move the adjusting clip 502 upward or downward along the axial direction of the anchor bolt 501;
[0080] Step D′2: hoist the modular integral structure of the frame-type fixing bracket 100 and the integrated pipeline 300, and connect them to the adjusting clamp 502 through the adjusting rod 503, and fix them with a nut, and rotate the nut to move the anchor bolt 501 upward or downward along its axial direction;
[0081] Step D′3: by adjusting the height of the support adjustment rods 503 of the plurality of adjustment fixing frames 500 , the modular overall structure of the frame type fixing bracket 100 and the integrated pipeline 300 meets the height and flatness requirements;
[0082] Step D′4: The modular overall structure is installed and fixed on the fixed support leg 140 , specifically, the overall fixation is achieved by fixing the vertical support 110 with the sliding column.
[0083] By adjusting the relative positions of the anchor bolt 501, the support adjustment rod 503 and the adjustment clamp 502 individually or in full, the height of the modular overall structure can be adjusted. In addition, by adjusting the adjustment fixing frame at different positions, the overall flatness of the modular overall structure can be adjusted to ensure that the installation meets the design requirements. Furthermore, the connecting hole opened on the lower side square plate of the adjustment clamp 502 is a strip hole, so that when the support adjustment rod 503 passes through the strip hole, the horizontal position of the frame-type fixing bracket (100) and the integrated pipeline (300) can also be adjusted. Figure 1 and Figure 2 The installation structure of multiple adjustable fixing frames 500 of a modular integral structure is shown in the figure. Each adjustable fixing frame 500 is arranged near the intersection of the vertical support 110, the transverse support 120 and the longitudinal support 130. The fixed support leg 140 is fixedly connected to the vertical support 110 and is located at the joint of the vertical support 110, the transverse support 120 and the longitudinal support 130. Figure 1 and Figure 2 Only two fixing legs 140 are shown, and the fixing legs of the remaining parts are not shown. Figure 4 and Figure 5 The diagram shows all the arrangement positions of the fixing legs 140 after the fixing bracket 500 is adjusted into place.
[0084] Install integrated pipelines and frame-type fixed brackets, pay attention to pipeline installation errors and make timely adjustments. In terms of pipeline installation errors: 1) For exposed air ducts installed horizontally, the allowable deviation of horizontality is 3 / 1000, and the total deviation should not be greater than 20mm; for exposed air ducts installed vertically, the allowable deviation of verticality is 2 / 1000, and the total deviation should not be greater than 20mm; 2) Horizontal cable ducts are installed horizontally and vertically, and the deviation of the entire length cannot exceed 2‰; 3) For horizontal installation of pipes, the allowable deviation is within 1‰, and for vertical installation, the allowable deviation is within 1‰. The modules of this technical solution are basically installed horizontally, and the pipeline installation accuracy is controlled at 1‰. After all the modules on a floor or in an area are installed and connected, the overall pressure test, flushing, and insulation are carried out. After the overall installation of the system is completed, a trial run is carried out;
[0085] The implementation content of the delivery and operation stage includes: comprehensive pipeline testing and trial operation, monitoring the working status and working parameter data of the frame-type fixed support when the integrated pipeline is in operation, and entering the BIM and QR code after application effect evaluation and storing it in the modular delivery system.
[0086] Through this comprehensive layout evaluation and implementation system for electromechanical pipelines, the implementation steps of all electromechanical pipelines are designed with modular segmentation and BIM software technology, which can ensure that all electromechanical pipelines are installed in an orderly, fast and high-quality manner, reduce the coordination work of the general contractor for the construction of various disciplines, and improve construction efficiency. Through BIM software, pipe comprehensive optimization and in-depth design are carried out in advance to ensure zero collision of pipe comprehensive layout plan. According to the in-depth design results, pipes and bridges are accurately cut, and the number and specifications of supports and hangers are determined according to the force, taking into account the requirements of clearance and reserved space for maintenance, which greatly saves material and labor costs and meets high-standard technical requirements;
[0087] By evaluating the application effect of pipeline modular construction technology from multiple evaluation indicators, the evaluation results of modular construction technology of prefabricated prefabricated pipe complexes in improving construction efficiency and construction quality can be truly and objectively reflected, and the evaluation results of the application effect of modular construction of electromechanical pipe complexes can be guaranteed to be objective, scientific and reasonable, thereby reflecting the rationality and applicability of all-professional modular construction and high-precision prefabrication of electromechanical pipe complexes, which has important persuasiveness and driving force for promoting modular construction technology of pipelines.
[0088] Example 2
[0089] This embodiment shows an application evaluation method for the comprehensive arrangement of electromechanical pipelines. When the evaluation implementation system for the comprehensive arrangement of electromechanical pipelines in Example 1 is used to evaluate the modular construction technology of electromechanical pipelines, the following steps are included:
[0090] Step A: Use BIM technology to carry out pipeline modularization and in-depth design, including using Revit software to arrange the integrated pipelines according to the general principles of pipeline layout, and using Navisworks software to check pipeline collisions, so that the layout of the electromechanical integrated pipelines meets the set clear height standards and functional requirements;
[0091] Step B: Use pipeline modular construction technology to prefabricate pipe modules with frame-type brackets as module frame carriers, transport each module to the site for overall hoisting, fix the modular frame-type fixed brackets, and connect and assemble each module unit;
[0092] Step C: Select multiple evaluation indicators to evaluate the application effect of pipeline modular construction technology. The multiple evaluation indicators include five indicators: function realization, pipeline engineering cost, pipeline net height, operation and maintenance space, and pipeline layout appearance;
[0093] Step D: Based on the pipeline modular construction application effect evaluation system, a fuzzy comprehensive evaluation method is used to evaluate the application of the modular construction technology of mechanical and electrical pipelines.
[0094] In step A, the modular finished bracket is further designed using BIM software technology, and the modules are divided according to the layout of single professions such as water supply and drainage, strong electricity, weak electricity, air conditioning, control, and communication in the integrated pipeline, as well as the factory length, quality requirements, and transportation needs of various electromechanical pipe standard sections, so as to achieve standardization of the modules, thereby optimizing cutting, saving materials, and ensuring quality;
[0095] At the same time, by using Navisworks software to perform collision detection on the BIM model in step A, the problem of frequent collisions of various professional pipelines can be quickly checked, and the layout of the comprehensive pipelines can be adjusted in advance to ensure that the clear height requirements of the pipelines are met, so that the comprehensive layout of the pipelines is more scientific and reasonable and meets the functional requirements.
[0096] Through step B, all the mechanical and electrical professional pipelines can be pre-fabricated to ensure the quality of comprehensive pipeline production, and transported to the construction site in modular form, so as to complete the modular connection and assembly of all the mechanical and electrical professional pipelines in an integrated, orderly, fast and high-quality manner;
[0097] Through the effect evaluation in step C, the modular construction technology of all-professional mechanical and electrical pipelines can achieve the requirements of all-professional mechanical and electrical pipelines in construction efficiency and construction quality. Through the comprehensive layout evaluation system of mechanical and electrical pipelines, it can be obtained that the modular construction technology of all-professional mechanical and electrical pipelines conforms to the current concept of assembled construction of buildings, has a good application effect in practice, can well solve the problems of cost, net height, work efficiency, etc., and can meet the increasingly high acceptance technology.
[0098] In step A, the general rules for pipe layout include the following aspects: when the bridge and the water pipe are parallel at the same height, they should be arranged separately horizontally; when the bridge and the cold water pipe are parallel on the same side in the vertical direction, the bridge should be placed on the top and the water pipe should be placed on the bottom; when the bridge and the hot water pipe are parallel on the same side in the vertical direction, the bridge should be placed on the bottom and the water pipe should be placed on the top; the hot medium pipeline is placed on the top and the cold medium is placed on the bottom; the non-corrosive medium pipeline is placed on the top and the corrosive medium pipeline is placed on the bottom; the gas medium pipeline is placed on the top and the liquid medium pipeline is placed on the bottom; the insulated pipeline is placed on the top; the non-insulated pipeline is placed on the bottom; the high-pressure pipeline is placed on the top; the low-pressure pipeline is placed on the bottom; the metal pipeline is placed on the top; the non-metal pipeline is placed on the bottom; the pipeline that is not frequently maintained is placed on the top; the pipeline that is frequently maintained is placed on the bottom, etc. The above pipe layout rules are adopted to achieve the purpose of reasonably arranging various professional pipelines, which can maximize the use space of the building and reduce the secondary construction caused by pipeline conflicts.
[0099] In step A, the layout of the electromechanical integrated pipelines meets the set functional use conditions, including the following aspects: (1) The layout of the integrated pipelines meets the position conditions, including: the slope of the gravity drainage pipe, when the cold water pipe and the cable trough are on the same side, the cable trough should be on the upper side of the water pipe, when the hot water pipe and the cable trough are parallel, the hot water pipe should be on the upper side of the cable trough, the distance between the water pipe and the cable trough, the distance between the high-voltage cable trough and the low-voltage cable trough when they are mounted together, and the distance between the support brackets, etc.; (2) The integrated pipelines meet the avoidance conditions, including: large pipes are given priority, small pipes give way to large pipes; pressurized pipes give way to non-pressurized pipes; low-pressure pipes give way to high-pressure pipes; normal temperature pipes give way to high and low temperature pipes. pipes; bendable pipes give way to non-bendable pipes, branch pipes give way to main pipes; pipes with fewer accessories give way to pipes with more accessories; electrical pipes avoid heat and water; avoid arranging electrical lines above hot water pipes, steam pipes and vertically below water pipes; (3) installation and maintenance meet space conditions, including a minimum of 500mm of space for people on the integrated pipelines, and space for pipeline installation and cable laying at the end of the process; (4) the net height from the bottom of the integrated pipeline to the ground is at least 2.2m, and the net height of the integrated pipeline should be adjusted according to the use functions of different areas of the building and the needs of the owner to meet the requirements of daily traffic and decoration ceiling elevation. The above-mentioned multiple aspects of the layout of the electromechanical integrated pipelines can achieve the set functional use conditions, ensure that the layout of the electromechanical integrated pipelines is more scientific and reasonable, meet the requirements of refined design, and improve the layout level of the integrated pipelines and their service life in later operation.
[0100] In step D, when evaluating the application effect, the evaluation score is determined based on the degree of achievement of each indicator, including the following evaluation contents:
[0101] D1: Function realization. Its score is determined based on whether it can be used normally, fire safety and usage requirements. After the installation of the pipe system, the normal use of wind, water, electromechanical facilities, etc., as well as the fire safety requirements and normal use requirements of the space below the pipe system must be achieved. This is the effect that must be achieved by the pipe system layout and is determined according to the design drawings and mandatory requirements of the specifications;
[0102] D2: The cost of pipeline engineering is determined by the difference ratio formula between the actual cost after deepening and the winning bid price calculated by drawings during bidding. The formula is S = [(Sbiao-Sbim) / Sbiao] × 100 + 100, where S is the scoring value of pipeline engineering cost, Sbiao is the winning bid price calculated by drawings during bidding, and Sbim is the actual cost after BIM deepening. Different pipeline arrangements produce different engineering quantities and corresponding costs.
[0103] D3: Clear height of pipe complex. The clear height of pipelines arranged in pipe complex shall not be less than the minimum clear height requirement. It is determined according to the difference ratio formula between the actual clear height of pipelines and the minimum clear height requirement proposed by the owner. The formula is H=[(Hbim-Hding) / Hding]×100+100, Hbim≥Hding, H is the score of pipeline clear height, Hbim is the clear height of pipe complex after BIM in-depth design, and Hding is the minimum clear height requirement of pipelines proposed by the owner. Clear height is an important indicator for pipe complex evaluation. The higher the clear height of pipelines, the stronger the building function. Generally, a minimum clear height requirement is stipulated according to the use function of each area of the building. The arrangement of pipe complex cannot be lower than this requirement, otherwise the building function cannot meet the use needs;
[0104] D4: Operation and maintenance space, determined by the volume ratio of the remaining space of the pipeline above the clear height of the pipe complex to the overall space, the formula is: V = [(V 净 -V 管 ) / V 净 ], V is the operation and maintenance space score, V 净 V is the volume of space above the clear height of the pipeline. 管 The volume of the space occupied by the pipeline above the clear height of the pipeline. The operation and maintenance space refers to the difficulty of pipe complex installation and the size of the space required for maintenance and overhaul. Generally, the width of the manhole of the pipe complex is at least 500mm. This method uses the ratio of the remaining space of the pipeline above the clear height of the pipe complex to the volume occupied by the overall space as the evaluation score. The larger the manhole, the higher the score.
[0105] D5: The visual quality of pipeline layout. The evaluation score is determined based on the overall visual quality of pipeline layout and is determined by people with many years of experience in the industry.
[0106] The use of the above-mentioned multiple evaluation indicators to evaluate the application effect can better meet the requirements of the integrated pipeline in the later use and maintenance, make the application evaluation process more objective, scientific and reasonable, and reflect the rationality and applicability of the comprehensive professional modular construction and high-precision prefabrication of electromechanical pipelines.
[0107] Furthermore, the pipeline engineering cost, the clear height of the pipeline complex and the operation and maintenance space are the indicators that the owner is most concerned about. In the in-depth design work, the entire integrated pipeline layout is often adjusted because one of the three indicators needs to be adjusted. The values of the operation and maintenance space and the clear height of the pipeline complex are determined according to the functional relationship formula. At the same time, the values of the operation and maintenance space and the pipeline engineering cost are determined according to the functional relationship formula. Then, the change law of the score values of the pipeline engineering cost, the clear height of the pipeline complex and the operation and maintenance space is estimated. The functional relationship formula of the operation and maintenance space and the clear height of the pipeline complex is: Where y is the clear height of the pipe complex, x is the operation and maintenance space value, and a is the theoretical maximum value of the pipe complex arrangement; the functional relationship formula between the operation and maintenance space and the pipeline engineering cost is: y = b x S 标(0≤x≤1), where y is the actual cost after the comprehensive management is deepened, and b is the cost increase rate within the acceptable range of the owner: b=S bim / S bid, S bid is the bid price, S bim To calculate the actual cost after BIM in-depth design, the value of b needs to be between the ratio of the highest actual settlement price of mechanical and electrical engineering acceptable to the owner and the winning bid price, generally controlled between 1.0 and 1.2. The larger the b value, the higher the degree of freedom given to BIM in-depth design, and the more convenient the subsequent operation and maintenance can be.
[0108] Since the evaluation index of operation and maintenance space is related to the two evaluation indexes of pipeline clear height and pipeline engineering cost, by constructing the functional relationship formulas of operation and maintenance space and pipeline engineering cost and operation and maintenance space and pipeline clear height respectively, the conflict among the three evaluation indexes can be avoided, and the comprehensive layout of electromechanical pipelines can be evaluated more reasonably. The process of establishing the functional relationship formula of pipeline engineering cost, pipeline clear height and operation and maintenance space includes:
[0109] Step D′1: Collect the clear heights of the pipe complex corresponding to different operation and maintenance values under the conditions of multiple theoretical maximum clear heights of the pipe complex, and the actual costs corresponding to different operation and maintenance values under the conditions of multiple psychological increase rates;
[0110] Step D′2: Plot different pipe net heights corresponding to different operation and maintenance values under the theoretical maximum value condition of each pipeline into plane coordinates, and plot actual costs corresponding to different operation and maintenance values under each psychological increase rate condition into plane coordinates, and obtain point values of different pipe net heights corresponding to multiple groups of different operation and maintenance values, and point values of actual costs corresponding to multiple groups of different operation and maintenance values;
[0111] Step D′3: Smoothly connect the point values of different pipe clear heights corresponding to each group of different operation and maintenance values to obtain multiple function curves, correct each function curve, remove the point values with large deviation values, and derive the functional relationship formula between the operation and maintenance space and the pipeline engineering cost;
[0112] Step D′4: Smoothly connect the point values of different actual costs corresponding to each group of different operation and maintenance values to obtain multiple function curves, correct each function curve, remove the point values with large deviation values, and derive the functional relationship formula between the operation and maintenance space and the clear height of the pipe complex;
[0113] The steps D'3 and D'4 are performed in no particular order.
[0114] The above steps are used to obtain the relationship between the three indicator parameters of pipeline engineering cost, pipe clear height and operation and maintenance space. The values of the two are determined according to the functional relationship formula between operation and maintenance space and pipe clear height. At the same time, the values of the two are determined according to the functional relationship formula between operation and maintenance space and pipeline engineering cost, ensuring that the evaluation system and evaluation process are scientific and reasonable. The functional relationship formula between operation and maintenance space and pipe clear height is explained in detail below, for example:
[0115] a: Under the condition that the theoretical maximum value of the clear height of the collection pipe is 3.2 (that is, the psychological increase rate a value, determined according to the specification), the operation and maintenance space V values are 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, and 0.9, respectively, corresponding to the clear height H of the different pipes 定 The values are 2.865, 2.473, 2.074, 1.672, 1.295, 0.960, 0.679, 0.457, 0.289, 0.172, 0.094, 0.048, 0.028, 0.009, and 0.003, respectively;
[0116] b: When the theoretical maximum value a of the clear height of the pipe complex in another area is 3.6 and 4, the operation and maintenance space V values are 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, and 0.9 respectively. 定 The values of are 3.219, 2.787, 2.332, 1.881, 1.457, 1.081, 0.764, 0.514, 0.325, 0.193, 0.106,
[0118] 0.055, 0.021, 0.009, 0.003 and 3.579, 3.099, 2.593, 2.091, 1.619, 1.201, 0.849, 0.571, 0.362, 0.214, 0.118, 0.060, 0.025, 0.011, 0.003;
[0120] c: Plot the point values of the above three sets of data in the plane coordinate system, the horizontal coordinate x is the operation and maintenance space V value, and the vertical coordinate y is the clear height H of the pipe complex 定 The value of is obtained, and three function curves are obtained. Each function curve is corrected, and the point value with large deviation value is removed. The three function curves are combined to derive the functional relationship formula between operation and maintenance space and pipeline engineering cost as follows: Figure 7 shown.
[0121] Similarly, the process of establishing the functional relationship formula between operation and maintenance space and pipeline engineering cost is as follows:
[0122] a′: The bid cost S corresponding to the operation and maintenance space V values of 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, and 0.8 respectively is collected under the condition that the ratio between the actual settlement price of the electromechanical engineering acceptable to the owner and the winning bid price is 1.05 (that is, the psychological increase rate b value, determined based on experience). 标 The values are 1.7671, 1.7710, 1.7759, 1.7802, 1.7843, 1.7887, 1.7931, 1.7976, 1.8018, 1.8065, 1.8108, 1.8153, 1.8197 respectively;
[0123] b′: The corresponding bidding cost S when b value is 1.10, 1.15, and 1.2, and the operation and maintenance space V value is 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, and 0.9 respectively 标 The values of the data are: b value of 1.10 corresponds to 1.7838, 1.7922, 1.8007, 1.8094, 1.8180, 1.8268, 1.8355, 1.8442, 1.8529, 1.8618, 1.8707, 1.8796, 1.8887, b value of 1.15 corresponds to: 1.7998, 1.8123, 1.8643, 1.8669, 1.8780, 1.8796, 1.8887. 8249, 1.8377, 1.8508, 1.8636, 1.8767, 1.8899, 1.9032, 1.9165, 1.9298, 1.9433, 1.9570, b value is 1.20 corresponding to: 1.8152, 1.8318, 1.8485, 4.8654, 1.8823, 1.8996, 1.9170, 1.9345, 1.9523, 1.9703, 1.9882, 2.0064, 2.0248;
[0125] c′: Plot the point values of the above four sets of data in the plane coordinate system, the horizontal coordinate x is the operation and maintenance space V value, and the vertical coordinate y is the clear height S of the pipe complex 标 The value of is used to obtain four function curves. Each function curve is corrected to remove the point value with large deviation value. The four function curves are combined to derive the functional relationship formula between operation and maintenance space and pipeline engineering cost as follows: Figure 8 shown.
[0126] In the step E, the application evaluation method of the integrated layout of electromechanical pipelines also includes a fuzzy comprehensive evaluation method, which is based on the application effect evaluation system of the integrated modular construction of pipelines. By establishing a factor index set and determining the weight, determining the evaluation object and dividing the safety evaluation set, selecting the membership function and constructing the judgment matrix, and finally calculating the evaluation result, the fuzzy comprehensive evaluation method specifically includes the following steps:
[0127] Step E1: Determine the factor set U, which refers to the set of factors affecting the evaluation object, U = (u1, u2, ..., u m ), (i = l, 2, ..., m), in the process of calculating the weight of each evaluation index, the relevant weight ai of each factor is determined by combining methods including hierarchical analysis method and expert survey method to distinguish the importance of each factor and form a weight set W, W = (a1, a2, ..., a n ), (i=1, 2, ..., n);
[0128] Step E2: Determination of the evaluation set. When evaluating the target project, the target project is divided into multiple evaluation levels. The evaluation results are determined according to the evaluation criteria. The evaluation set V is represented as follows:
[0129] V=(v1,v2,...,v m ), (j=1, 2, ..., m);
[0130] Step E3: Determine the degree of membership and the judgment matrix. The factor set U in step E1 is composed of m evaluation index levels to form a judgment set V. This technical solution divides the evaluation set into 5 risk levels, namely V = (I, II, III, IV, V) = (poor, qualified, general, good, excellent). The degree of membership is determined by evaluation by those with more engineering experience or confirmed by calculation based on the membership function.
[0131] Step E4: Start with a comprehensive evaluation from the lowest level and establish an evaluation matrix first
[0132]
[0133] In the formula, R is the corresponding fuzzy relationship matrix, where β ij is the degree of membership of the factor to the evaluation level;
[0134] Combined with step E1, a j (j=1, 2, 3, ... n) is the weight of the index factor, and then the weight vector W of each factor in the sub-criteria layer is obtained by the evaluation method. i , and thus the fuzzy judgment vector B of the criterion layer factors is obtained i ': B i ′=W i ·Ri (i=1,2,...,m), R i The following is the evaluation matrix of each factor in the sub-criteria layer;
[0135] The fuzzy comprehensive evaluation matrix of the criterion layer factors R = [B1', B2', ..., B i '](i=1, 2, ..., m), and then use the judgment matrix R combined with the weight vector W to make a judgment on the weight distribution of many influencing factors according to the following algorithm:
[0136]
[0137] In the formula, B is the evaluation criterion, and the evaluation criterion B is a hierarchical fuzzy subset; a j (j=1, 2, 3, ... n) is the weight of the indicator factor; b j (j=1, 2, 3, ..., n) is the degree of membership of the factor index to B, that is, b j The level corresponding to the maximum value of is taken as the effect evaluation level.
[0138] Due to the complex characteristics of the influencing factors, there is a fuzzy relationship between the factor set U and the evaluation set V.
[0139] The fuzzy comprehensive evaluation method mentioned above is used to evaluate the modular construction technology of all-professional mechanical and electrical pipelines based on the comprehensive modular construction application effect evaluation system, so as to determine whether the technology used in the comprehensive layout evaluation system of mechanical and electrical pipelines meets the requirements of construction efficiency and construction quality, and whether the technology is in line with the current concept of assembled construction. It provides a scientific, reasonable and concrete reference basis for whether the modular construction method of all-professional mechanical and electrical pipelines meets the requirements of cost, net height, work efficiency, etc., to ensure the accuracy and rationality of the application evaluation.
[0140] Example 3
[0141] This embodiment uses the specific implementation process of a project to illustrate the implementation process of the modular construction technology of all-professional electromechanical pipelines according to the implementation content during the implementation stage of all-professional electromechanical pipelines, and illustrates the process of evaluating the application effect of the modular construction of pipeline complexes using multiple evaluation indicators.
[0142] The project is large in scale, with a total construction area of 442,300 square meters, including multiple residential buildings and various types of public supporting buildings. Among them, the underground area of Plot 1 is 39,631 square meters, including 1 underground floor and 14 13-story residential buildings on the ground, with a building height of 42.1 meters. The underground area of Plot 2 is 15,599 square meters, including 1 underground floor and 6 13-story residential buildings on the ground, with a building height of 42.1 meters. The project has high assembly rate requirements. All single buildings with an area of more than 5,000 square meters are 100% prefabricated buildings. BIM is used for prefabricated split design, and the assembly rate is calculated to meet the requirements of prefabricated buildings. The total investment and construction period of the project are tight, a total of 36 months. BIM technology is used throughout the project life cycle to improve construction efficiency and quality.
[0143] The mechanical and electrical installation project of this project is mainly composed of water supply and drainage system, strong power system, intelligent system, ventilation and air conditioning system, fire protection system, etc. Each system is divided into many subsystems, thus forming a complete integrated pipe network. The mechanical and electrical engineering has the following difficulties and characteristics:
[0144] (1) The building is a comprehensive building with a complex electromechanical system. It includes education, residence, garage and other business formats, with a strong comprehensive use function, complex electromechanical system, and a very complex pipeline layout plan. Under the premise of meeting the functions, it has high requirements for net height and efficiency;
[0145] (2) There are many disciplines, frequent cross-construction, and difficult construction management. The project has many cross-construction projects involving civil engineering, electromechanical engineering, decoration, etc. The electromechanical engineering itself is divided into water, electricity, wind, heating, fire protection, intelligentization, elevators and other disciplines. Various professional types of work are cross-constructed at the same time and in the same place, which makes management difficult and faces major construction simulation and process cross-construction problems;
[0146] (3) The project is very thrifty, with narrow walkways, small machine rooms, insufficient mechanical and electrical construction space, and difficult pipeline layout, making it difficult to guarantee the quality and progress of on-site construction. The width of the walkway in the machine room area on the second floor of the basement of the project is 2m, and the integrated pipelines are arranged up and down up to 4 layers. In order to match the fine decoration elevation, it is difficult to arrange the pipelines, and the space for pipe wells and distribution rooms is even more limited. How to achieve rapid installation and achieve the best results in one go in these limited spaces is a thorny technical problem; at the same time, the project also has the characteristics of advanced operation and maintenance technology and high delivery requirements for mechanical and electrical systems.
[0147] To achieve visual operation and maintenance, the electromechanical system of this embodiment uses the modular delivery results of the construction process during construction to timely revise and deepen BIM, establish precise guidance model goals, meet the needs of later modular operation and maintenance, and achieve high-standard modular delivery.
[0148] Step 1: In-depth analysis of architectural, structural, electromechanical and other drawings, and application of BIM technology to construct a comprehensive management model after collision inspection;
[0149] Step 2: Submit the modular assembled integrated pipelines and frame-type fixed brackets to the prefabrication factory for prefabrication, mark the prefabricated modules with QR codes, associate them with the corresponding BIM modules, and transport them to the site;
[0150] Step 3: According to the location information on the module QR code, transport the modules one by one to the installation location, and use hand hoists and other auxiliary tools to hoist them, so as to complete the modular installation of the electromechanical pipe system;
[0151] Step 4: After installation, evaluate the application effect of the modular construction of the pipe complex.
[0152] In step 4, multiple evaluation indicators are selected to evaluate the application effect of the modular electromechanical pipeline complex implemented by the pipeline modular construction technology. The multiple evaluation indicators include five indicators: function realization, pipeline engineering cost, pipeline complex net height, operation and maintenance space, and pipeline layout appearance. They are representative to a certain extent. An electromechanical pipeline complex modular construction application effect index system consisting of three-level indicators A, B1~B5 and C1~C7 is constructed. The details are shown in Table 1.
[0153] Table 1 Evaluation system for the application effect of electromechanical pipe integration
[0154]
[0155] The judgment matrix and consistency test are constructed. According to the importance of each element of each layer to the specific criteria, the 1-9 scale AHP method is used to construct the judgment matrix of each hierarchical level. Among them, the judgment matrix of the criterion layer for the application effect of the modular construction of the electromechanical and pipe complex of the target layer is shown in Table 2, and the judgment matrix of the indicator layer for the criterion layer is shown in Table 3.
[0156] Table 2B-A Judgment Matrix
[0157]
[0158] Table 3C-B judgment matrix
[0159]
[0160] After calculation, the CR of the evaluation system is less than 0.1, which meets the consistency test requirements. The weight values of various indicators in the evaluation system for the application effect of mechanical, electrical and pipe comprehensive modular construction are shown in Table 4.
[0161] Table 4 Evaluation system weight coefficient
[0162]
[0163] The evaluation level is set to five score ranges (unqualified, qualified, average, good, excellent) = (60, 70, 80, 90, 100) based on a full score of 100 points. The score results after scoring by people with many years of experience in the industry and calculation by formula are shown in Table 5.
[0164] Table 5 Application effect evaluation scores
[0165]
[0166] The fuzzy comprehensive evaluation method is used to calculate the score and weight, and after the B1 index is evaluated, the evaluation results of the application effect of electromechanical pipe integration are as follows:
[0167]
[0168] From the calculation results, it can be seen that according to the maximum membership principle, the maximum membership value of the five grades is 0.85, corresponding to the "excellent" grade, so the application effect of the modular construction of the electromechanical pipe complex is excellent. In Table 4, the functional realization and net height of the electromechanical pipe complex have the largest weights, so the important factors affecting the evaluation results of the application effect are the functional realization and net height of the electromechanical pipe complex; in the evaluation of the functional realization of the electromechanical pipe complex, the normal use of pipelines and spaces is the key factor of application evaluation, because fire safety has been fully considered in the in-depth design, so even if fire safety has the lowest score in the functional realization, its extremely low weight has little effect on the overall application effect evaluation of the electromechanical pipe complex. The use of modular construction of electromechanical pipe complex saves materials and labor to a certain extent, but also increases the transportation cost of some in-depth design work and module frames, so it has a greater advantage compared to the bid price, but the advantage is not as prominent as other indicators (including fire safety, pipeline use, space use, net height, maintenance space and appearance), so the pipe complex cost index has the lowest score. To sum up, the evaluation results of the application effect of modular construction of electromechanical and pipe complex are objective, scientific and reasonable, reflecting the rationality and applicability of modular construction and high-precision prefabrication of all professional electromechanical and pipe complexes.
[0169] The above is only a detailed description of the specific implementation of the present invention, rather than a limitation of the present invention. Various substitutions, modifications and improvements made by those skilled in the relevant art without departing from the principle and scope of the present invention should be included in the protection scope of the present invention.
Claims
1. A comprehensive layout evaluation implementation system for electromechanical pipelines, characterized in that: The electromechanical pipeline comprehensive layout evaluation implementation system adopts the modular construction technology of prefabricated pipe complex as the implementation content of the electromechanical full-professional pipeline implementation stage, and evaluates the application effect of the modular construction of the pipe complex from multiple evaluation indicators, thereby forming an evaluation system for the application effect of the modular construction of the pipe complex. The modular construction technology of the prefabricated pipe complex includes using a frame-type fixed bracket as a modular frame carrier of the electromechanical integrated pipeline. The frame-type fixed bracket (100) includes vertical pillars (110) and transverse pillars (120). The vertical pillars (110) and the transverse pillars (120) are vertically connected on the same plane to form a planar frame structure. Multiple groups of the planar frame structures are arranged in parallel. The frame-type fixed bracket (100) also includes a longitudinal pillar (130) for connecting the multiple groups of parallel planar frame structures to form a whole, and a longitudinal pillar (130) for adding A triangular reinforcement strut (600) for fixing a plane frame structure, wherein two ends of the triangular reinforcement strut (600) are respectively connected to a vertical support (110) and a horizontal support (120) through a connecting piece (160), and the angle between the triangular reinforcement strut (600) and the horizontal support (120) is between 30 and 60 degrees. A scissor strut (700) is also arranged between the vertical supports (110) on the same side of two adjacent plane frame structures, and the ends of the scissor strut (700) are connected and fixed to the vertical support (110) through a connecting piece (160). A fixed support leg (140) is also connected to the top of the vertical support (110), and the fixed support leg (140) is used to be connected to a building structure. Except for the fixed support leg (140), the remaining components of the frame-type fixing bracket are assembled in advance and are connected and installed with the fixed support leg (140) as a whole. Multiple evaluation indicators include function realization, pipeline engineering cost, pipeline net height, operation and maintenance space and pipeline layout visual perception. The implementation stages of the electromechanical full-professional pipeline include: electromechanical full-professional pipeline design stage, electromechanical full-professional pipeline disassembly and prefabrication stage, electromechanical full-professional pipeline transportation stage, electromechanical full-professional pipeline assembly and adjustment stage and delivery and operation stage.
2. The electromechanical pipeline comprehensive layout evaluation implementation system according to claim 1 is characterized in that: The modular construction technology of prefabricated pipe bundles is used to complete the implementation of the mechanical and electrical pipeline implementation phase, including the implementation of frame-type fixed brackets and pipe bundles, including: The implementation content of the mechanical and electrical pipeline design phase includes: ① using modeling software to comprehensively arrange the mechanical and electrical pipelines; ② using collision monitoring software to conduct collision inspection and deepen the design to form a construction BIM; ③ the prefabricated factory receives the construction BIM and divides the comprehensive pipeline model into sections; The implementation content of the mechanical and electrical full professional pipeline splitting prefabrication stage includes: processing and prefabrication of the single materials of each module formed after segmentation, and conducting experiments one by one, including pressure test and light leakage test; The implementation content of the mechanical and electrical full professional pipeline transportation stage includes: marking the prefabricated modules with QR codes, associating them with the corresponding BIM modules, and transporting them to the installation construction site and installation location; The implementation content of the electromechanical full professional pipeline assembly and adjustment stage includes: on-site connection and assembly of the modules, including installation of integrated pipelines and frame-type fixing brackets. Before installation, height and flatness are adjusted by multiple adjustment fixing brackets (500) connected to the frame-type fixing bracket (100). The adjustment fixing brackets (500) are arranged near the joints of the vertical pillars (110), the horizontal pillars (120) and the longitudinal pillars (130). The adjustment fixing brackets (500) include anchor bolts (501), adjustment clamps (502) and support adjustment rods (503). The anchor bolts (501) are used to be pre-buried in the building structure. The support adjustment rods (503) pass through all the longitudinal pillars (130) of the frame-type fixing bracket (100) in the height direction and are fixedly connected to the frame-type fixing bracket (100). The adjusting clamp (502) is a square frame structure formed by enclosing square plates. The upper and lower square plates are respectively adjustably connected to the anchor bolt (501) and the support adjusting rod (503), so that the relative positions between the anchor bolt (501), the support adjusting rod (503) and the adjusting clamp (502) can be moved. The fixed support leg (140) includes a sliding column (141) and a fixing seat (142). The fixed support leg (140) is slidably connected to the vertical support column (110), so that the fixed support leg (140) can slide and extend along the length direction of the vertical support column (110). The fixed support leg (140) and the vertical support column (110) are provided with a fixing structure for fixing the fixed support leg (140) and the vertical support column (110) in a state after sliding into place after the frame-type fixing bracket is adjusted into place by adjusting the fixing frame; The implementation content of the delivery and operation stage includes: comprehensive pipeline testing and trial operation, monitoring the working status of the frame-type fixed support when the integrated pipeline is in operation, recording working parameter data, and entering BIM and QR code after application effect evaluation, and storing them in the modular delivery system.
3. The electromechanical pipeline comprehensive layout evaluation implementation system according to claim 1 is characterized in that: The longitudinal pillar 130 is perpendicular to the planar frame structure, and includes a first longitudinal pillar 131 and a second longitudinal pillar 132. The first longitudinal pillar 131 is connected to the outside of the plurality of groups of vertical pillars (110) of the planar frame structure, and both ends extend to the outside of the ends of both sides of the vertical pillars (110). The second longitudinal pillar (132) is arranged between the sides of the vertical pillars (110) of two adjacent planar frame structures, and both ends of the second longitudinal pillar (132) are in contact with the sides of the vertical pillars (110) at both ends. The longitudinal support (130) and the vertical support (110) are tightly connected at their connection points by connecting pieces (160) to form support joints; the transverse support (120) comprises a first transverse support (121) and a second transverse support (122), the first transverse support (121) and the second transverse support (122) being arranged between the side surfaces of the vertical support (110) of the single plane frame structure, and the ends of the first transverse support (121) and the second transverse support (122) are tightly fitted to the side surfaces of the vertical support (110) at both ends.
4. The electromechanical pipeline comprehensive layout evaluation implementation system according to claim 1 is characterized in that: The fixed support leg (140) comprises a sliding column (141) and a fixing seat (142). The fixed support leg (140) is slidably connected to the vertical support (110) so that the fixed support leg (140) can slide and extend along the length direction of the vertical support (110). The fixed support leg (140) and the vertical support (110) are provided with a fixing structure for fixing the two after sliding into place. The vertical support (110), the transverse support (120) and the longitudinal support (130) are provided with an adjustment slot (400) and an adjustment slot position (150). When the connecting piece (160) is used to fix the joints of the frame-type fixed bracket (100), the adjustment slot position (150) and the adjustment slot (400) are used to adjust the error and then assemble.
5. An application evaluation method for comprehensive layout of electromechanical pipelines, characterized in that: When the comprehensive layout evaluation and implementation system of electromechanical pipelines as claimed in any one of claims 1 to 4 is used to evaluate the modular construction technology of electromechanical pipelines, the following steps are included: Step A: Use BIM technology to carry out pipeline modular in-depth design, including using modeling software to arrange the integrated pipelines according to the pipe layout rules, and using collision monitoring software to check pipeline collisions, so that the layout of the electromechanical integrated pipelines meets the set clear height standards and functional requirements; Step B: Use pipeline modular construction technology to construct, including prefabrication of pipe modules with frame-type brackets as module frame carriers and frame-type fixed brackets, transporting each module as a whole to the site for overall hoisting, fixing the modular frame-type fixed brackets, and connecting and assembling each module unit; Step C: Select multiple evaluation indicators to evaluate the application effect of pipeline modular construction technology. The multiple evaluation indicators include five indicators: function realization, pipeline engineering cost, pipeline net height, operation and maintenance space, and pipeline layout appearance; Step D: Based on the pipeline modular construction application effect evaluation system, a fuzzy comprehensive evaluation method is used to evaluate the application of the modular construction technology of mechanical and electrical pipelines.
6. The application evaluation method for comprehensive layout of electromechanical pipelines according to claim 5 is characterized in that: In step B, after the module units are connected and assembled, they are hoisted and fixed, and a plurality of adjustment fixing frames (500) installed on the frame-type fixing bracket (100) are used for installation and adjustment, including the following steps: Step B1: pre-embed the anchor bolt (501) in the building structure, and install and fix the adjustment clip (502) on the anchor bolt (501); Step B2: hoist the modular overall structure of the frame-type fixed support (100) and the integrated pipeline (300), and connect them to the adjustment clamp (502) through the adjustment rod (503). Step B3: By adjusting the height of the support adjustment rods (503) of the plurality of adjustment fixing frames (500), the modular overall structure of the frame-type fixing bracket (100) and the integrated pipeline (300) is made to meet the height and flatness requirements.
7. The application evaluation method for comprehensive layout of electromechanical pipelines according to claim 6 is characterized in that: In step A, the pipe arrangement rules include the following aspects: ① When the bridge and the water pipe are parallel at the same height, they are arranged separately horizontally; when the bridge and the cold water pipe are parallel on the same side in the vertical direction, the bridge is on the top and the water pipe is arranged on the bottom; when the bridge and the hot water pipe are parallel on the same side in the vertical direction, the bridge is on the bottom and the water pipe is arranged on the top; ② The hot medium pipe is on the top and the cold medium is on the bottom; ③ The non-corrosive medium pipe is on the top and the corrosive medium pipe is on the bottom; ④ The gas medium pipe is on the top and the liquid medium pipe is on the bottom; ⑤ The insulated pipe is on the top and the non-insulated pipe is on the bottom; ⑥ The high-pressure pipe is on the top and the low-pressure pipe is on the bottom; ⑦ The metal pipe is on the top and the non-metal pipe is on the bottom; ⑧ The pipe that is not frequently maintained is on the top and the pipe that is frequently maintained is on the bottom; The layout of electromechanical integrated pipelines to achieve the set functional conditions includes the following aspects: ① The layout of the integrated pipelines meets the location conditions, including: the slope of the gravity drainage pipe; when the cold water pipe and the cable trough are on the same side, the cable trough is on the upper side of the cold water pipe; when the hot water pipe and the cable trough are parallel, the hot water pipe is on the upper side of the cable trough; the distance between the water pipe and the cable trough; the distance between the strong wire trough and the weak wire trough when they are on the same rack; the spacing between the support brackets; ② The integrated pipelines meet the avoidance conditions, including: large pipes are given priority, small pipes give way to large pipes; pressurized pipes give way to non-pressurized pipes; low-pressure pipes give way to high-pressure pipes; normal-temperature pipes give way to high-temperature pipes and low-temperature pipes; bendable pipelines give way to non-bendable pipelines; branch pipelines give way to main pipelines; pipelines with fewer accessories give way to pipelines with more accessories; electrical pipelines give way to hot water pipes; avoid arranging electrical lines above hot water pipelines and steam pipelines and vertically below water pipes; ③ The installation and maintenance meet the space requirements, including a minimum of 500mm of space for people on the integrated pipelines, and space for pipeline installation and cable laying at the end of the process; ④ The net height from the bottom of the integrated pipeline to the ground is at least 2.2m.
8. The application evaluation method for comprehensive layout of electromechanical pipelines according to claim 6 is characterized in that: In step D, when evaluating the application effect, the evaluation score is determined based on the degree of achievement of each indicator, including the following evaluation contents: D1: Functional realization, the score is determined based on whether it can be used normally, fire safety and usage requirements; D2: The cost of pipeline engineering is determined by the difference ratio formula between the actual cost after detailed construction and the winning bid price calculated based on the drawings during bidding. The formula is S = [(Sbiao-Sbim) / Sbiao] × 100 + 100, where S is the pipeline engineering cost score, Sbiao is the winning bid price calculated based on the drawings during bidding, and Sbim is the actual cost after BIM detailed construction; D3: Clear height of pipe complex. The clear height of pipelines arranged in the pipe complex shall not be less than the minimum clear height requirement. It is determined according to the difference ratio formula between the actual clear height of the pipeline and the minimum clear height requirement. The formula is H = [(Hbim-Hding) / Hding] × 100 + 100, Hbim ≥ Hding, H is the clear height score of the pipeline, Hbim is the clear height value achieved after the BIM deepening of the pipe complex, and Hding is the minimum clear height requirement value of the pipeline; D4: Operation and maintenance space, which is determined by the ratio of the remaining space of pipelines above the clear height of the pipeline complex to the volume occupied by the overall space. The formula is, V = [(Vnet-Vtube) / Vnet], where V is the operation and maintenance space score, Vnet is the volume of the space above the clear height of the pipeline, and Vtube is the volume of the space occupied by the pipeline above the clear height of the pipeline; D5: Pipeline layout visual quality. The evaluation score is determined based on the overall visual quality of the pipeline layout.
9. The application evaluation method for comprehensive layout of electromechanical pipelines according to claim 8 is characterized in that: Among the three indicators of pipeline engineering cost, pipe complex clear height and operation and maintenance space, the values of the two are determined according to the functional relationship formula between the operation and maintenance space and the pipe complex clear height. At the same time, the values of the two are determined according to the functional relationship formula between the operation and maintenance space and the pipeline engineering cost, and then the scoring values of the pipeline engineering cost, the pipe complex clear height and the operation and maintenance space are determined. The functional relationship formula between the operation and maintenance space and the pipe complex clear height is: Where y is the clear height of the pipe complex, x is the operation and maintenance space value, and a is the theoretical maximum value of the pipe complex arrangement; the functional relationship formula between the operation and maintenance space and the pipeline engineering cost is: y = b x S 标 (0≤x≤1), where y is the actual cost after the comprehensive management is deepened, and b is the cost increase rate within the acceptable range of the owner: b=S bim / S bid, S bid is the bid price, S bim The actual cost of the pipeline complex after BIM deepening, the value of b needs to be between the ratio of the highest actual settlement price of the mechanical and electrical engineering acceptable to the owner and the winning bid price, b is between 1.0 and 1.
2. The process of establishing the functional relationship between the pipeline engineering cost, the clear height of the pipeline complex and the operation and maintenance space includes: Step D′1: Collect the clear heights of the pipeline complex corresponding to different operation and maintenance values under the conditions of the theoretical maximum values of multiple pipelines, and the actual costs corresponding to different operation and maintenance values under the conditions of multiple psychological increase rates; Step D′2: Plot different pipe net heights corresponding to different operation and maintenance values under the theoretical maximum value condition of each pipeline into plane coordinates, and plot actual costs corresponding to different operation and maintenance values under each psychological increase rate condition into plane coordinates, and obtain point values of different pipe net heights corresponding to multiple groups of different operation and maintenance values, and point values of actual costs corresponding to multiple groups of different operation and maintenance values; Step D′3: Smoothly connect the point values of different pipe clear heights corresponding to each group of different operation and maintenance values to obtain multiple function curves, correct each function curve, remove the point values with large deviation values, and derive the functional relationship formula between the operation and maintenance space and the pipeline engineering cost; Step D′4: Smoothly connect the point values of different actual costs corresponding to each group of different operation and maintenance values to obtain multiple function curves, correct each function curve, remove the point values with large deviation values, and derive the functional relationship formula between the operation and maintenance space and the clear height of the pipe complex; The steps D'3 and D'4 are performed in no particular order.
10. The application evaluation method for the comprehensive arrangement of electromechanical pipelines according to any one of claims 5 to 9, characterized in that: In the step E, the application evaluation method of the integrated layout of electromechanical pipelines also includes a fuzzy comprehensive evaluation method, which is based on the application effect evaluation system of the integrated modular construction of pipelines. By establishing a factor index set and determining the weight, determining the evaluation object and dividing the safety evaluation set, selecting the membership function and constructing the judgment matrix, and finally calculating the evaluation result, the fuzzy comprehensive evaluation method specifically includes the following steps: Step E1: Determine the factor set U, which refers to the set of factors affecting the evaluation object, U = (u1, u2, ..., u m ), (i = l, 2, ..., m), in the process of calculating the weight of each evaluation index, the relevant weight ai of each factor is determined by combining methods including hierarchical analysis method and expert survey method to distinguish the importance of each factor and form a weight set W, W = (a1, a2, ..., a n ), (i=1, 2, ..., n); Step E2: Determination of the evaluation set. When evaluating the target project, the target project is divided into multiple evaluation levels. The evaluation results are determined according to the evaluation criteria. The evaluation set V is represented as follows: V=(v1,v2,...,v m ),(j=l,2,...,m); Step E3: Determine the degree of membership and the judgment matrix. The factor set U in step E1 is composed of m evaluation index levels to form a judgment set V. This technical solution divides the evaluation set into 5 risk levels, namely V = (I, II, III, IV, V) = (poor, qualified, general, good, excellent). The degree of membership is determined by evaluation by those with more engineering experience or confirmed by calculation based on the membership function. Step E4: Start with a comprehensive evaluation from the lowest level and establish an evaluation matrix first In the formula, R is the corresponding fuzzy relationship matrix, where β ij is the degree of membership of the factor to the evaluation level; Combined with step E1, a j (j=1, 2, 3, ... n) is the weight of the index factor, and then the weight vector W of each factor in the sub-criteria layer is obtained by the evaluation method. i , and thus the fuzzy judgment vector B of the criterion layer factors is obtained i ': B i ′=W i ·R i (i=1,2,...,m), R i The following is the evaluation matrix of each factor in the sub-criteria layer; The fuzzy comprehensive evaluation matrix of the criterion layer factors R = [B1', B2', ..., B i '](i=1, 2, ..., m), and then use the judgment matrix R combined with the weight vector W to make a judgment on the weight distribution of many influencing factors according to the following algorithm: In the formula, B is the evaluation criterion, and the evaluation criterion B is a hierarchical fuzzy subset; a j (j=1, 2, 3, ... n) is the weight of the indicator factor; b j (j=1, 2, 3, ..., n) is the degree of membership of the factor index to B, that is, b j The level corresponding to the maximum value of is taken as the effect evaluation level.
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