BIM (Building Information Modeling)-based prefabricated quick mounting method and system for electrical wire pipes of fabricated building floor

Abstract

The invention discloses a BIM (Building Information Modeling)-based prefabricated building floor electrical wire pipe prefabrication rapid installation method, which comprises the following steps of S1, establishing a prefabricated floor support plate model, and deepening a floor support plate steel bar grid according to a floor support plate processing diagram; s2, drawing an electrical professional tail end point position vertical line pipe, and providing tail end positioning for laying of the electrical line pipe of the floor support plate; s3, through deep combination with the deepened steel bar grid of the floor support plate, optimizing the plane routing of the electrical wire pipe; s4, numbering the floor support plates at different floors and different positions; s5, the number of the floor support plate is relatively combined with the plane route of the electrical wire pipe; s6, prefabricating and modularizing the vertical line pipe, the transition pipe fitting and the connecting pipe fitting; s7, placing and fixing the electrical wire pipe in place; s8, the floor support plate is hoisted in place; and S9, completing mutual connection of the line pipes.

Description

Technical Field

[0001] The present invention relates to the technical field of electromechanical equipment installation, and in particular to a BIM-based prefabricated rapid installation method and system for electrical conduits on assembled building floors. Background Art

[0002] With the continuous development of the construction industry, the proportion of prefabricated buildings in the industry has begun to increase year by year. Compared with conventional buildings, the methods of pre-installed electrical conduit and pre-embedding in prefabricated building floors have undergone earth-shaking changes. In conventional projects, we usually reserve and embed electrical conduit after the bottom reinforcement is laid. After that, the civil engineering department will lay the top reinforcement. However, in prefabricated buildings, the following problems often arise: (1) After the on-site floor decking is hoisted, the electrical professionals carry out the pre-embedding work, and the cross-construction between the professionals leads to safety problems and interface handover problems; (2) When the electrical professionals carry out the pre-embedding work on site, they need to lay out the lines and position the wires and pipes after the floor decking is hoisted, which will cause a waste of construction time. The tight construction period will cause the rush to work, resulting in a waste of costs; (3) If the factory is used to prefabricate the floor decking and electrical wire pipes throughout the entire process, if the vertical wire pipes are laid after prefabrication in the factory, the floor decking cannot be stacked and transported, the freight increases sharply, and the workload related to the protection of the finished product increases. The wire pipes of the wall part need to be laid and connected after the on-site floor decking is hoisted into place, and there is still a need for cross-operation and a waste of construction time.

[0003] To address the above issues, it is necessary to develop a BIM-based method for the rapid prefabrication of electrical conduit on prefabricated building floors to solve the problems of difficulty in constructing electrical conduit on floor decking, high risks of cross-construction operations, and easy waste of construction time. Summary of the Invention

[0004] The purpose of the present invention is to provide a BIM-based prefabricated rapid installation method and system for electrical conduit on prefabricated building floors to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the present invention provides a BIM-based prefabricated rapid installation method for electrical conduits on prefabricated building floors, comprising the following steps: S1. Establish a prefabricated floor deck model and deepen the floor deck reinforcement grid according to the floor deck processing drawing; S2. Draw the vertical conduit at the end point of the electrical professional to provide the end positioning for the laying of electrical conduit on the floor deck; S3. Optimize the planar routing of electrical conduits by integrating the depth of the reinforced grid of the floor decking. S4. Number the floor decking plates at different floors and locations; S5. Combine the floor decking number and the electrical conduit plane route; S6, prefabricated, modular vertical line pipes, transition pipes and connecting pipes; S7. Position and fix the electrical conduit; S8. Hoist the floor deck into place; S9. Complete the interconnection of the wire pipes.

[0006] In a preferred embodiment, in step S2, vertical wire pipes at the terminal points of the electrical profession are drawn to provide terminal positioning for the laying of electrical wire pipes on the floor decking, including: accurately locating the terminal points of the electrical profession according to the electrical pipeline drawings, drawing vertical wire pipes at the terminal points of the electrical profession, and providing terminal positioning for the laying of electrical wire pipes on the floor decking. The vertical wire pipes are determined according to the terminal types of different needs. Pipes that are 300mm from the ground are directly drawn and reserved in place at one time. Pipes that are more than 300mm from the ground are uniformly reserved to a height of 300mm. When the steel bars of the wall are tied in the later stage, they will continue to extend upward to the designed height, and at the same time, they will be sealed above the vertical wire pipes.

[0007] In a preferred embodiment, in step S3, the planar route of the electrical conduit is optimized by combining it with the depth of the deepened floor deck steel grid, including: determining the beginning and end of the electrical conduit of the floor deck according to the drawn vertical conduit, and by combing the plan view of the electrical conduit, the conduit from the distribution box to the end or from the bridge to the end is drawn in the prefabricated floor deck model according to the height and positioning of the design instructions, and by combining it with the depth of the floor deck steel grid deepened in step S1, the route and height of the electrical conduit to be laid in the floor deck part are deepened, and the conduit fixed on the floor deck is drawn according to the design route. After the drawing is completed, the connection points and intersection points of the conduit are analyzed, and according to the principle of the shortest straight line between two points, the pipe system is optimized on the premise of ensuring that there are at most two layers of conduit at the intersection, and on the premise of meeting the specifications and the unchanged end position, the conduit is bent, connected and optimized in the form of prefabricated pipe fittings and connectors.

[0008] In a preferred embodiment, in step S4, the floor decking panels at different floors and different positions are numbered, including: numbering the floor decking panels at different floors and different positions in sequence according to the on-site hoisting order to distinguish the floor decking panels at different positions for pre-laying of wire pipes according to the numbers.

[0009] In a preferred embodiment, in step S5, the floor decking numbers and the electrical conduit plane routes are relatively combined, including: according to the completed floor decking numbers and the optimized electrical conduit plane routes, one-to-one pairing is performed, so that the optimized electrical conduit plane routes and the floor decking numbers correspond one-to-one, and at the same time, the floor decking numbers and the electrical conduit optimization drawings are issued to the construction team, and the electrical conduits are pre-laid on site before the floor decking is hoisted according to the floor decking numbers and the electrical conduit optimization drawings.

[0010] In a preferred embodiment, in step S6, the prefabricated and modular vertical line pipes, transition pipe fittings and connecting pipe fittings include: prefabricating vertical line pipes of different heights according to the pipeline size and selection, and prefabricating elbows for connecting the vertical line pipes. The final height of the vertical line pipe is the sum of the height of the elbow, the structural layer, and the finished surface of the building.

[0011] In a preferred embodiment, in step S6, the prefabricated, modular vertical line pipes, transition pipe fittings and connecting pipe fittings also include: prefabricated transition pipe fittings and connecting pipe fittings, the transition pipe fittings include bending avoidance pipes arranged at the intersection of the line pipes and intersection connectors on both sides, and when modeling the transition pipe fittings, the bending requirements of different pipe materials and pipe diameters, pipe spacing requirements and overall structural layer requirements must be considered, and by sorting out different pipe materials and pipe diameters, the bending height requirements of each pipe material and corresponding pipe diameter are determined, wherein the bending height is the pipe diameter + reserved pipe spacing; the connecting pipe fittings are arranged at both ends of the inter-plate connecting pipe of the floor decking, and both ends of the inter-plate connecting pipe of the floor decking are respectively provided with external threads, and the connecting pipe fittings are correspondingly provided with internal threads, and both ends of the inter-plate connecting pipe are respectively provided with reserved lengths for adjusting the gap error between the floor decking.

[0012] In a preferred embodiment, in step S7, the electrical conduit is positioned and fixed, including: according to the already drawn electrical conduit plan and the floor deck number, before the floor deck is hoisted into place, the connecting pipes between the panels are positioned and fixed using steel wires to complete the pre-embedding of the electrical conduit in the floor deck; in step S8, the floor deck is hoisted into place, including: hoisting the floor deck with the electrical conduit fixed into place in sequence according to the number.

[0013] In a preferred embodiment, in step S9, the interconnection of the wire conduits is completed, including: using the transition pipes and connecting pipes prefabricated in step S6 to interconnect the electrical wire conduits at the wire conduit intersections and the floor deck connection points.

[0014] The present invention also provides a BIM-based prefabricated rapid installation system for electrical conduits on assembled building floors, comprising: a unit for performing the following operations: Establish a prefabricated floor deck model and refine the floor deck reinforcement grid according to the floor deck processing drawing; Draw the vertical wire conduit at the end point of the electrical profession to provide the end positioning for the laying of electrical wire conduit on the floor deck; By integrating the depth of the reinforced grid of the floor deck, the plane routing of the electrical conduits is optimized; Number the floor decking plates at different floors and locations; Combine the floor decking numbers with the electrical conduit plane routing; Prefabricated, modular vertical line pipes, transition pipes and connecting pipes; Wire tube is placed and fixed; The floor decking is hoisted into place; Complete the interconnection of wire tubes.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention uses BIM technology to carry out preliminary planning and drawing of the end positioning of the wire pipe and the plane direction of the wire pipe before construction, and guides the construction of the electrical wire pipe of each floor deck on site through the number positioning of the floor deck and the relative combination of the floor deck number and the wire pipe plane. Through prefabrication, the pre-buried work of the on-site electrical wire pipe can be completed before hoisting, so that the quality and positioning of the electrical wire pipe in the floor deck can be controlled, and the transition pipes and connecting pipes are prefabricated in advance. After the hoisting of the floor deck is completed, the on-site construction personnel only need to connect the wire pipes between the floor decks to quickly complete the combination and connection of the wire pipes in the floor deck, which can ensure the construction period and save engineering cost investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the method flow of the present invention; Figure 2 A schematic diagram of the floor deck model of the present invention is established; Figure 3 A schematic diagram of a vertical conduit at an electrical terminal point of the present invention is drawn; Figure 4 Schematic diagram of the planar routing of electrical conduit and analysis of conduit connection points and intersection points of the present invention; Figure 5 This is a schematic diagram of the numbering of the floor decking plates of the present invention; Figure 6 This is a schematic diagram of an optimized drawing of electrical conduits according to floor deck numbering according to the present invention; Figure 7 It is a structural schematic diagram of the vertical line pipe and elbow of the present invention; Figure 8 It is a structural schematic diagram of the connecting pipe of the present invention; Figure 9 It is a structural schematic diagram of the transition pipe of the present invention; Figure 10This is a schematic diagram of the floor decking with the electrical conduits fixed thereto being hoisted into place in sequence according to the numbered positions of the present invention. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention are described clearly and completely below. The embodiments of the present invention and all other embodiments obtained by persons of ordinary skill in the art without creative work are within the scope of protection of the present invention.

[0018] Example 1 like Figures 1 to 9 As shown, the BIM-based prefabricated rapid installation method for electrical conduits on prefabricated building floors according to a preferred embodiment of the present invention includes the following steps: Step S1: Use Revit software to create a prefabricated floor deck model 201 and refine the floor deck reinforcement grid according to the floor deck fabrication drawing. When drawing the floor deck reinforcement grid, attention should be paid to the fabrication plant's tolerances. The grid should be drawn based on the actual floor deck after actual on-site measurements to minimize on-site tolerances.

[0019] Step S2: Draw the vertical conduit at the electrical terminal point to provide terminal positioning for the electrical conduit installation on the floor deck.

[0020] Precisely locate the electrical terminal points based on the electrical pipeline drawings and draw vertical conduits 301 for these terminal points. This provides terminal positioning for the electrical conduit installation in the floor deck. The vertical conduits are determined based on the terminal type required. Pipes 300mm above the ground are directly drawn and reserved in place. Pipes exceeding 300mm above the ground are uniformly reserved to 300mm to prevent damage during concrete pouring. These pipes are then extended upward to the designed height during the subsequent wall reinforcement tying. A seal is placed above the vertical conduits to prevent foreign matter from entering.

[0021] Step S3: Optimize the planar routing of the electrical conduit by combining it with the depth of the reinforced mesh of the floor decking.

[0022] Based on the drawn vertical conduit 301, the beginning and end of the electrical conduit of the floor deck are determined. By sorting out the electrical conduit plan, the conduit from the distribution box to the end or from the bridge to the end is drawn in the assembled floor deck model strictly according to the height and positioning of the design specifications. By combining it with the depth of the floor deck steel grid deepened in step S1, the route and height of the electrical conduit required to be laid in the floor deck are deepened. The conduit installed and fixed on the floor deck is drawn according to the electrical conduit design route 401. After the drawing is completed, the conduit connection points 402 and intersection points 403 are analyzed. According to the principle of the shortest straight line between two points, the pipe system is optimized under the premise of ensuring that there are only two layers of conduit at the intersection, and under the premise of meeting the specifications and the unchanged end position. The conduit is bent, connected and optimized through prefabricated pipe fittings and connectors, minimizing the amount of steel used during construction and the amount of cable used in the later stage, preparing for on-site prefabrication construction.

[0023] Step S4: number the floor decking plates at different floors and locations.

[0024] According to the on-site hoisting sequence, the floor decking panels 501 at different floors and locations are numbered in sequence to distinguish the floor decking panels at different locations for pre-laying of wires and conduits according to the numbers. Figure 5 A specific example of floor deck plate numbering is shown, where the floor deck plate sections are numbered sequentially as L3-1, L3-2, L3-3, L3-4, L3-5 and L3-6.

[0025] Step S5: Combining the floor decking plate number with the electrical conduit plane route.

[0026] According to the completed floor decking numbers and the optimized electrical conduit plane routes, one-to-one pairing is carried out to make the optimized electrical conduit plane routes correspond to the floor decking numbers one-to-one. The electrical conduit optimization drawings are produced according to the floor decking numbers and issued to the construction teams. The floor decking numbers are affixed simultaneously on site. The electrical conduits are reserved on site before the floor decking is hoisted according to the floor decking numbers and the electrical conduit optimization drawings. This avoids construction demolition and modification due to inconsistency between the floor decking and detailed drawing numbers. It can also prevent data confusion caused by too many drawings and floor decking, which may cause a large number of demolition and modification problems.

[0027] Step S6: prefabricate and modularize vertical line pipes, transition pipes and connecting pipes.

[0028] According to the pipe size and selection, vertical wire pipes of different heights are prefabricated, and elbows 302 are prefabricated for the connection of vertical wire pipes. The final height of the vertical wire pipe is the sum of the height of the elbow, the structural layer, and the finished surface of the building. Among them, the height from the finished surface of the building to the vertical wire pipe is uniformly considered to be 300mm. The position of elbows with different pipe diameters is different, and each needs to be considered according to the model and material. The same project on each floor of the structural layer should be a unified item, and different ones should be considered separately. In principle, the above three data for each project only need to be sorted out through the three data of material and pipe diameter, pipe size, structural method, and 300mm on the building surface to complete the length determination of the vertical wire pipe part of the entire project, realize early standardization and prefabrication, complete this part of the work in the processing plant or processing workshop, and assemble directly on site.

[0029] Prefabricated transition and connecting fittings include a bend-avoidance pipe 701 installed at the intersection of the line pipes and two connecting fittings 702 at the intersections. The transition fittings must take into account the thickness of the steel reinforcement cover and the diameter of the underlying pipes. Connecting fittings 602 are installed at both ends of the inter-plate connecting pipe 601 of the floor deck. Both ends of the inter-plate connecting pipe 601 are provided with external threads, and the connecting fittings 602 are provided with corresponding internal threads. A reserved length (2-3 more than the standard requirement) is provided at both ends of the inter-plate connecting pipe 601 to adjust for gap errors between the floor decks.

[0030] When modeling transition pipe fittings, the first consideration is the bending requirements for different materials and pipe diameters. Secondly, the spacing requirements between pipes must be considered. Finally, the overall structural requirements must be considered. By sorting out the different pipe materials and diameters, the bending height requirements for each pipe material and corresponding diameter are determined. The bending height is the pipe diameter plus the reserved pipe spacing. For example, if the pipe spacing is 10mm, the spacing between DN25 welded steel pipes must meet the bending height requirement of 25 + 10 = 35mm.

[0031] Step S7: The electrical conduit is positioned and fixed.

[0032] According to the completed electrical conduit plan, the electrical conduit is positioned and fixed using steel wire before the floor deck is hoisted into place, completing the pre-embedding of the electrical conduit within the floor deck.

[0033] Step S8: hoist the floor deck into place.

[0034] Lift the floor decking with the electrical conduit fixed in place in sequence according to the numbered positions, such as Figure 10 shown.

[0035] Step S9: Complete the interconnection of the wire pipes.

[0036] The prefabricated transition and connecting pipes in step S6 are used to quickly connect electrical conduits at conduit intersections and at floor decking connections. Routing standards for different pipe diameters on different floor deckings allow for rapid positioning and installation of prefabricated components, avoiding modifications and project delays caused by unclear drawings or mismatches between pipe diameters and prefabricated components.

[0037] Example 2 The present invention also provides a BIM-based prefabricated rapid installation system for electrical conduits on assembled building floors, comprising: a unit for performing the following operations: Establish a prefabricated floor deck model and refine the floor deck reinforcement grid according to the floor deck processing drawing; Draw the vertical wire conduit at the end point of the electrical profession to provide the end positioning for the laying of electrical wire conduit on the floor deck; By integrating the depth of the reinforced grid of the floor deck, the plane routing of the electrical conduits is optimized; Number the floor decking plates at different floors and locations; Combine the floor decking numbers with the electrical conduit plane routing; Prefabricated, modular vertical line pipes, transition pipes and connecting pipes; Position and fix the electrical conduit; The floor decking is hoisted into place; Complete the interconnection of wire tubes.

[0038] Furthermore, vertical wire pipes at the terminal points of the electrical profession are drawn to provide terminal positioning for the laying of electrical wire pipes on the floor decking, including: precise positioning of the terminal points of the electrical profession according to the electrical pipeline drawings, drawing of vertical wire pipes at the terminal points of the electrical profession, and providing terminal positioning for the laying of electrical wire pipes on the floor decking. The vertical wire pipes are determined according to the terminal types of different needs. Pipes that are 300mm from the ground are directly drawn and reserved in place at one time. Pipes that are more than 300mm from the ground are uniformly reserved to a height of 300mm. When the steel bars of the wall are tied in the later stage, they will continue to extend upward to the designed height, and at the same time, the vertical wire pipes are sealed.

[0039] Furthermore, by combining with the depth of the deepened floor deck steel grid, the plane route of the electrical conduit is optimized, including: determining the beginning and end of the electrical conduit of the floor deck according to the drawn vertical conduit, and by sorting out the plan view of the electrical conduit, the conduit from the distribution box to the end or from the bridge to the end is drawn in the prefabricated floor deck model according to the height and positioning of the design instructions; by combining with the depth of the deepened floor deck steel grid, the route and height of the electrical conduit to be laid in the floor deck part are deepened, and the conduit fixed on the floor deck is drawn according to the design route. After the drawing is completed, the connection points and intersection points of the conduit are analyzed. According to the principle of the shortest straight line between two points, the pipe system is optimized on the premise of ensuring that there are at most two layers of conduit at the intersection, and on the premise of meeting the specifications and the unchanged end position, the conduit is bent, connected and optimized in the form of prefabricated pipe fittings and connectors.

[0040] Furthermore, the floor decking panels at different floors and different positions are numbered, including: numbering the floor decking panels at different floors and different positions in sequence according to the on-site hoisting sequence to distinguish the floor decking panels at different positions for pre-laying of wire pipes according to the numbers.

[0041] Furthermore, the floor decking numbers and the electrical conduit plane routes are relatively combined, including: one-to-one pairing based on the completed floor decking numbers and the optimized electrical conduit plane routes, so that the optimized electrical conduit plane routes correspond to the floor decking numbers one by one, and at the same time, the floor decking numbers and electrical conduit optimization drawings are issued to the construction team, and electrical conduits are reserved on site before the floor decking is hoisted according to the floor decking numbers and the electrical conduit optimization drawings.

[0042] Furthermore, prefabricated, modular vertical conduits, transition fittings, and connecting fittings include: prefabricating vertical conduits of varying heights based on pipe size and selection, and prefabricating elbows for connecting the vertical conduits. The final height of the vertical conduit is the sum of the elbow, structural layer, and finished building surface height. Prefabricated transition fittings and connecting fittings include bend-avoidance pipes installed at the intersection of the conduits and intersection connectors on both sides. The transition fittings must take into account the thickness of the steel bar protective layer and the diameter of the underlying pipe. The connecting fittings are installed at both ends of the inter-slab connecting pipes of the floor deck. When modeling transition fittings, the bending requirements of different pipe materials and diameters, the pipe spacing requirements, and the requirements of the overall structural layer should be considered. By sorting out the different pipe materials and diameters, the bending height requirements of each pipe material and corresponding pipe diameter are determined. Among them, the bending height is the pipe diameter + reserved pipe spacing. Both ends of the inter-plate connecting pipe of the floor decking are respectively provided with external threads, and the connecting fittings are correspondingly provided with internal threads, and both ends of the inter-plate connecting pipe are respectively provided with reserved lengths for adjusting the gap error between the floor decking plates.

[0043] Furthermore, positioning and securing the electrical conduits includes positioning and securing the conduits using steel wire before the floor decks are hoisted into place, based on the pre-drawn conduit plan and floor deck numbering. This allows for the pre-embedded electrical conduits within the floor decks. Hoisting the floor decks into place includes hoisting the floor decks, with the conduits secured, into place sequentially according to their numbers.

[0044] Furthermore, the interconnection of the wire pipes is completed, including: using prefabricated transition pipes and connecting pipes to connect the electrical wire pipes at the wire pipe intersections and the floor deck connection points. While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A BIM-based method for rapid prefabrication of electrical conduit for prefabricated building floors, characterized by: The steps include: S1. Establish a prefabricated floor deck model and deepen the floor deck reinforcement grid according to the floor deck processing drawing; S2. Draw the vertical conduit at the end point of the electrical professional to provide the end positioning for the laying of electrical conduit on the floor deck; S3. Optimize the planar routing of electrical conduits by integrating the depth of the reinforced grid of the floor decking. S4. Number the floor decking plates at different floors and locations; S5. Combine the floor decking number and the electrical conduit plane route; S6, prefabricated, modular vertical line pipes, transition pipes and connecting pipes; S7. Position and fix the electrical conduit; S8. Hoist the floor deck into place; S9. Complete the interconnection of the wire pipes.

2. The BIM-based rapid installation method for prefabricated electrical conduit for prefabricated building floors according to claim 1 is characterized by: In step S2, vertical wire pipes at the end points of the electrical profession are drawn to provide end positioning for the laying of electrical wire pipes on the floor decking, including: precise positioning of the end points of the electrical profession according to the electrical pipeline drawings, drawing vertical wire pipes at the end points of the electrical profession, and providing end positioning for the laying of electrical wire pipes on the floor decking. The vertical wire pipes are determined according to the end types of different needs. Among them, the pipes 300mm from the ground are directly drawn and reserved in place at one time, and the pipes more than 300mm from the ground are uniformly reserved to a height of 300mm, and will continue to extend upward to the design height when the steel bars are tied to the wall in the later stage, and at the same time, the vertical wire pipes are sealed.

3. The BIM-based rapid installation method for prefabricated electrical conduit for prefabricated building floors according to claim 1 is characterized by: In step S3, the planar route of the electrical conduit is optimized by combining it with the depth of the deepened floor deck steel grid, including: determining the beginning and end of the electrical conduit of the floor deck according to the drawn vertical conduit, and by sorting out the plan view of the electrical conduit, drawing the conduit from the distribution box to the end or from the bridge to the end in the prefabricated floor deck model according to the height and positioning of the design instructions; by combining it with the depth of the floor deck steel grid deepened in step S1, the route and height of the electrical conduit to be laid in the floor deck part are deepened, and the conduit fixed on the floor deck is drawn according to the design route. After the drawing is completed, the connection points and intersection points of the conduit are analyzed, and according to the principle of the shortest straight line between two points, the pipe system is optimized on the premise of ensuring that there are at most two layers of conduit at the intersection, and on the premise of meeting the specifications and the unchanged end position, the conduit is bent, connected and optimized in the form of prefabricated pipe fittings and connectors.

4. The BIM-based rapid installation method for prefabricated electrical conduit for prefabricated building floors according to claim 3 is characterized by: In step S4, the floor decking panels at different floors and different positions are numbered, including: numbering the floor decking panels at different floors and different positions in sequence according to the on-site hoisting sequence to distinguish the floor decking panels at different positions for pre-laying of wire pipes according to the numbers.

5. The BIM-based rapid installation method for prefabricated electrical conduit for prefabricated building floors according to claim 4 is characterized by: In step S5, the floor decking numbers and the electrical conduit plane routes are relatively combined, including: one-to-one pairing is performed according to the completed floor decking numbers and the optimized electrical conduit plane routes, so that the optimized electrical conduit plane routes correspond to the floor decking numbers one-to-one, and at the same time, the floor decking numbers and the electrical conduit optimization drawings are issued to the construction team, and the electrical conduits are pre-laid on site before the floor decking is hoisted according to the floor decking numbers and the electrical conduit optimization drawings.

6. The BIM-based rapid prefabrication installation method for electrical conduits on prefabricated building floors according to claim 1 is characterized by: In step S6, prefabricated and modularized vertical line pipes, transition pipe fittings and connecting pipe fittings include: prefabricating vertical line pipes of different heights according to the pipe size and selection, and prefabricating elbows for connecting the vertical line pipes. The final height of the vertical line pipe is the sum of the height of the elbow, the structural layer, and the finished surface of the building.

7. The BIM-based rapid prefabrication method for electrical conduit installation on prefabricated building floors according to claim 6 is characterized by: In step S6, the prefabricated, modular vertical line pipes, transition pipe fittings and connecting pipe fittings also include: prefabricated transition pipe fittings and connecting pipe fittings, the transition pipe fittings include bending avoidance pipes arranged at the intersection of the line pipes and intersection connectors on both sides. When modeling the transition pipe fittings, the bending requirements of different pipe materials and pipe diameters, the pipe spacing requirements and the requirements of the overall structural layer practices must be considered. By sorting out different pipe materials and pipe diameters, the bending height requirements of the material and corresponding pipe diameter of each pipe are determined, where the bending height is the pipe diameter + reserved pipe spacing; the connecting pipe fittings are arranged at both ends of the inter-plate connecting pipe of the floor decking, and the two ends of the inter-plate connecting pipe of the floor decking are respectively provided with external threads, and the connecting pipe fittings are correspondingly provided with internal threads, and the two ends of the inter-plate connecting pipe are respectively provided with reserved lengths for adjusting the gap error between the floor decking.

8. The BIM-based rapid installation method for prefabricated electrical conduit for prefabricated building floors according to claim 7 is characterized by: In step S7, the electrical conduit is positioned and fixed, including: according to the already drawn electrical conduit plan and the floor deck number, using steel wire to position and fix the connecting pipes between the panels before the floor deck is hoisted into place, thereby completing the pre-embedding of the electrical conduit in the floor deck; in step S8, the floor deck is hoisted into place, including: hoisting the floor deck with the electrical conduit fixed into place in sequence according to the number.

9. The BIM-based rapid installation method for prefabricated electrical conduit for prefabricated building floors according to claim 8, characterized in that: In step S9, the interconnection of the wire conduits is completed, including: using the transition pipes and connecting pipes prefabricated in step S6 to interconnect the electrical wire conduits at the wire conduit intersections and the floor deck connection points.

10. A BIM-based prefabricated rapid installation system for electrical conduits on prefabricated building floors, characterized by: include: Units for performing the following operations: Establish a prefabricated floor deck model and refine the floor deck reinforcement grid according to the floor deck processing drawing; Draw the vertical wire conduit at the end point of the electrical profession to provide the end positioning for the laying of electrical wire conduit on the floor deck; By integrating the depth of the reinforced grid of the floor deck, the plane routing of the electrical conduits is optimized; Number the floor decking plates at different floors and locations; Combine the floor decking numbers with the electrical conduit plane routing; Prefabricated, modular vertical line pipes, transition pipes and connecting pipes; Wire tube is placed and fixed; The floor decking is hoisted into place; Complete the interconnection of wire tubes.

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