Fire pump house construction method based on BIM (Building Information Modeling)

Abstract

The invention discloses a BIM-based fire-fighting water pump house construction method, and mainly solves the technical problems of low efficiency and poor reliability of an existing fire-fighting water pump house design and construction method. According to the method, based on BIM modeling, according to the sequence of a water pump plane, a top plane and a ground plane, correlation between data is achieved through a way of adding limiting conditions or creating global parameters; intelligent driving of the components is realized by means of inputting control parameter values or setting a driving parameter formula; and by firstly planning the component of the plane where the water pump is located, then planning the component of the top plane and finally planning the component of the plane where the ground is located, the design construction defect of repeated modification can be effectively overcome, and the design construction efficiency and quality of the fire pump are greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, in particular to a fire pump house construction method based on BIM. BACKGROUND

[0002] As the core of the fire protection system, the fire pump house is responsible for fire water supply. It mainly provides pressurized fire water for the fire hydrant system and the automatic sprinkler system, ensuring stable water supply during a fire. Once the pump house fails, the entire fire protection system will face the risk of paralysis, so its design and construction play an important role in fire protection inspection and acceptance.

[0003] The design of the fire pump house involves architecture, structure, water supply, drainage, heating and ventilation, power distribution, fire protection electricity, lighting, and weak current, etc. It requires close cooperation of multiple trades, including structural engineers, electrical engineers, water supply and drainage engineers, and heating and ventilation engineers. Structural engineers are responsible for optimizing the structure of the pump house to ensure reasonable equipment layout; electrical engineers design the power supply and lighting system to ensure normal operation of the equipment; water supply and drainage engineers plan the water supply and drainage system to ensure stable supply of fire water; and heating and ventilation engineers design the ventilation and heating system to cope with adverse environments.

[0004] The traditional fire pump house construction method known to the inventors is to adjust the layout of one professional after the design blueprint is drawn, and then the designers of the remaining professionals adjust the design within their professional scope in turn. After all adjustments are completed, it is necessary to return to the first professional to review the designs of each professional in turn. That is, each adjustment requires the participation of all professional trades for review, resulting in low efficiency, high labor cost, and poor reliability of fire pump house design and construction, which is easily affected by human factors and does not meet the corresponding specifications.

[0005] The information disclosed in this BACKGROUND section is only for the purpose of enhancing the understanding of the background of the present disclosure and should not be taken as admitting or implying that this information constitutes prior art known to those skilled in the art. SUMMARY

[0006] In view of at least one of the above technical problems, the present disclosure provides a fire pump house construction method based on BIM, which mainly solves the technical problem of low efficiency and poor reliability of the existing fire pump house design and construction method.

[0007] According to one aspect of the present disclosure, a fire pump house construction method based on BIM is provided, which comprises the following steps: (1) BIM modeling of the fire pump house and component facilities according to the design blueprint; (2) Determine the direction of the water outlet pipe out of the pump house and the corresponding water pump layout position, and adjust the water pump layout position to eliminate the intersection between the water outlet pipes corresponding to each water pump; (3) Determine the longitudinal position of the water pump according to the length of the pipe fittings and the length of the straight pipe section between the common water supply pipe and the water pump; and make the longitudinal position satisfy that the width of the pump house passage is not less than 1.2m; (4) Determine the longitudinal position of the equipment foundation based on the difference between the longitudinal position size of the water pump and the increase value of the size of each side of the foundation; (5) Determine the equipment foundation plane size according to the length, width of the water pump body and the increase value of the size of each side of the foundation; (6) Determine the transverse position of the equipment foundation according to the total net length of the pump house, the cabinet width, the foundation length of the water pump, the net distance between pump groups, the net width between pump groups and the wall, and the net distance between pump groups and cabinets; (7) Correspondingly optimize the layout position of the lighting lamps and weak current appliances based on the arrangement principle of transverse row, longitudinal line and priority near the water pump position; (8) Determine the horizontal position of the top pipeline; adjust the net distance between the pipeline near the wall and the wall to match the anti-seismic support, adjust the net distance between the pipelines near the wall to match the width of the side-by-side support or common support, and adjust the net distance of the middle pipeline to match the width corresponding to the side-by-side pipe fittings or pipelines; (9) Adjust the vertical position of the top pipeline according to the vertical spacing of the pipeline and the minimum net height of the pump house; make the space between the top of the wire slot and the bottom of the beam satisfy the cable installation, make the space between the top of the air pipe and the bottom of the wire slot satisfy the air pipe insulation and wire slot support installation, and make the space between the top of the water pipe and the bottom of the wire slot satisfy the water pipe support installation; (10) Determine the position of the drainage ditch based on the positions of the filter and the overflow pipe; (11) Draw and construct the drawing.

[0008] In some embodiments of the present disclosure, in the step (3), the following sub-steps are included: (31) Add global parameters L1, L2, L3, L4, L5 corresponding to the lengths of the tee, gate valve, filter, rubber flexible joint and reducing joint respectively; and associate the global parameters with the corresponding instance parameters; (32) Label the distance size between the water pump inlet and the outer skin of the common water supply pipe and add it as a global parameter; (33) Set the global parameter corresponding to the distance size between the water pump inlet and the outer skin of the common water supply pipe as: L1+A+L2+A+L3+A+L4+(1.5 / 1)A+L5; wherein A is the length of the straight pipe section between the pipe fittings, and the value range is 50-100mm; (34) Adjust the length of the straight pipe section A between the pipe fittings according to the width of the pump house passage to determine the longitudinal position of the water pump.

[0009] In some embodiments of the present disclosure, in the step (4), the following sub-steps are included: (41) Label the distance between the edge of the equipment foundation and the outer skin of the water supply pipe, and add it as a global parameter; (42) Set the global parameter corresponding to the distance between the edge of the equipment foundation and the outer skin of the water supply pipe as the difference between the distance from the outer skin of the water supply pipe to the water inlet of the water supply pump and the peripheral clearance of the foundation; wherein the peripheral clearance of the foundation ranges from 150 to 250 mm; (43) Label the width of the longitudinal passage of the pump house, and add a global parameter for it, and determine the position of the foundation in the longitudinal direction according to the condition that the width of the longitudinal passage of the pump house is not less than 1.2 m.

[0010] In some embodiments of the present disclosure, in the step (5), the following sub-steps are included: (51) Align and lock the transverse center line of the equipment foundation with the transverse center line of the water pump; (52) Add the instance parameters corresponding to the water pump, including the length of the pump body and the width of the pump body; (53) Add global parameters corresponding to the length of the pump body, the width of the pump body, the length of the equipment foundation, and the width of the equipment foundation, respectively: (54) Correspondingly associate the instance parameters corresponding to the water pump with the global parameters; (55) Set the global parameter corresponding to the length of the equipment foundation as: equipment foundation length = pump body length + 2 x peripheral protrusion size of the foundation; and set the global parameter corresponding to the width of the equipment foundation as: equipment foundation width = pump body width + 2 x peripheral protrusion size of the foundation; (56) Correspondingly generate the planar size of the equipment foundation.

[0011] In some embodiments of the present disclosure, in the step (6), the following sub-steps are included: (61) Label the clear distance between pump groups, the clear distance between pump groups and walls, and the distance between pump groups and cabinets, and add corresponding global parameters for them, respectively; (62) Set the clear distance between pump groups as 1500 mm, and the clear distance between pump groups and cabinets as 1500 mm; set the global parameter corresponding to the clear distance between pump groups and walls as: total net length of the pump house - thickness of the cabinet - N x width of the equipment foundation - (N-1) x clear distance between pump groups - clear distance between pump groups and cabinets; wherein N is the number of pump groups; (63) Correspondingly adjust the transverse position of the equipment foundation.

[0012] In some embodiments of the present disclosure, in the step (7), the following sub-steps are included: (71) Draw the reference lines corresponding to the lighting fixtures and the low-voltage appliances; (72) Corresponding adjustment of the position of the lighting lamps on the reference horizontal line and locking, and adjustment of the position of the weak current appliances on the reference vertical line and locking; (73) Merging of the adjacent reference horizontal lines and the adjacent reference vertical lines, and priority reservation of the reference lines closer to the pump body, corresponding adjustment of the position of the lighting lamps and the weak current appliances.

[0013] In some embodiments of the present disclosure, in the step (8), the following sub-steps are included: (81) Marking the pipeline closest to the wall and adding a label, and setting the corresponding global parameter to 200-500 mm; wherein if the pipeline is a water pipe, the global parameter is correspondingly taken as the minimum value, and if the pipeline is an air pipe, the global parameter is correspondingly taken as the maximum value; (82) Marking the pipeline close to the pipeline next to the wall and adding a label, and setting the corresponding global parameter to 200-300 mm; (83) Marking the intermediate pipeline and adding a label, and setting the corresponding global parameter to 200-300 mm; wherein if the pipelines are shared, the global parameter is correspondingly taken as the minimum value, and if the pipelines are not shared, the global parameter is correspondingly taken as the maximum value; (84) Marking the pipeline above the power distribution cabinet and adding a label, and setting the corresponding global parameter to the width of the power distribution cabinet body; (85) Adjusting the pipeline slot to be aligned with the outlet direction of the distribution box.

[0014] In some embodiments of the present disclosure, in the step (9), the following sub-steps are included: (91) Calculating the beam bottom height, and the beam bottom height is the difference between the structural elevation and the beam height; (92) Marking the slot top elevation and adding a global parameter, and the global parameter corresponding to the slot top elevation is: beam bottom height-slot spacing between the slot and the beam bottom, wherein the slot spacing between the slot and the beam bottom is in the range of 50-100 mm; (93) Drawing the elevation reference plane corresponding to the slot bottom elevation, and locking after adjusting the slot bottom to be flush with the reference plane; (94) Calculating the air pipe top elevation, and the air pipe top elevation = slot bottom elevation-air pipe spacing; wherein the air pipe spacing is in the range of 100-200 mm; and the air pipe bottom elevation is limited to be not less than 2400 mm; (95) Adjusting the water pipe top elevation to be the same as the air pipe top elevation, and calculating the water pipe bottom elevation and adding a global parameter, and the global parameter corresponding to the water pipe bottom elevation is: water pipe top elevation-water pipe outer diameter; (96) Drawing the elevation reference plane corresponding to the water pipe bottom elevation, and locking after adjusting the water pipe bottom to be flush with the reference plane.

[0015] In some embodiments of the present disclosure, in the step (10), the following sub-steps are included: (101) Draw a reference line corresponding to the filter, adjust the filter center line and the drain center line to align with the reference line and lock; (102) Add a drain ditch at the position corresponding to the pool overflow pipe, pool drain pipe, fire test water pipe and water valve, and cancel the drain ditch located on the passage.

[0016] One or more technical solutions provided in the embodiments of the present application have at least any of the following technical effects or advantages: The design and construction method of the fire pump house based on BIM modeling according to the sequence of the pump plane, the top plane and the ground plane, realizes the association between data by adding limiting conditions or creating global parameters; and realizes the intelligent driving of components by means of inputting control parameter values or setting driving parameter formulas; and by planning the components on the plane where the pump is located first, then planning the components on the top plane, and finally planning the components on the plane where the ground is located, the design and construction drawbacks of repeated modification can be effectively improved, and the design and construction efficiency and quality of the fire pump are greatly improved. DETAILED DESCRIPTION

[0017] In order to better understand the technical solutions of the present application, the above technical solutions will be described in detail below in combination with specific embodiments.

[0018] In order to solve the problems of low efficiency, consumption of human resources and reliability easily affected by human factors in the design and construction of the existing fire pump house, the present example discloses a fire pump house construction method based on BIM, which specifically includes the following steps: (1) BIM modeling of the fire pump house and component facilities according to the design blueprint.

[0019] In the present embodiment, the BIM technology is used to perform full-professional modeling of the station building and component facilities in the design blueprint based on the original fire pump house design blueprint, relying on the global parameters and report parameter functions of BIM to improve the design and construction efficiency and quality of the fire pump house, and eliminate the adverse effects caused by human professional factors.

[0020] (2) Determine the direction of the outlet pipe out of the pump house and the corresponding pump layout position, and adjust the pump layout position to eliminate the intersection between the outlet pipes corresponding to each pump.

[0021] In this example, after the fire pump house and component facilities are modeled, the pump group is first arranged and optimized. Specifically, in the BIM model, the BIM water pump group matching the water pump group in the design blueprint is selected, the water pump model is adjusted to be aligned with the center of the equipment foundation model for setting the water pump group, and the length and width of the equipment foundation are dimensioned and the group parameters are added. Then the position of the water outlet pipe out of the pump house and the layout position of the water pump group are obtained, and it is determined whether there is a large area of intersection between the water outlet pipes of different pump groups. If there is a pipeline intersection, the layout position of the water pump is adjusted accordingly based on the original equipment foundation arrangement to be adjacent to the position of the water outlet pipe out of the pump house. In this embodiment, the left-right direction in the plan view is set as the horizontal direction, and the direction perpendicular to the horizontal direction in the horizontal plane is set as the vertical direction.

[0022] (3) The vertical position of the water pump is determined according to the length of the pipe fittings and the length of the straight pipe section between the common water supply pipe and the water pump, and the vertical position satisfies that the width of the pump house passage is not less than 1.2 m.

[0023] The horizontal position of the water pump group can be determined through step (2). To further determine the vertical position of the water pump, the following sub-steps are included: (31) Considering that there are several pipe fittings and pipe fittings between the common water suction pipe and the water pump inlet, and the size of each pipe fitting and pipe fitting will affect the vertical position of the water pump, in this embodiment, global parameters L1, L2, L3, L4, L5 corresponding to the lengths of the tee, gate valve, filter, rubber flexible joint, and reducing joint are first added; and the global parameters are associated with the corresponding instance parameters. In this example, the global parameters are variables, and the instance parameters are size parameters of the corresponding components. By associating the global parameters with the instance parameters, when one of the instance parameters changes, the associated global parameters will also change, achieving dynamic adjustment.

[0024] (32) The distance between the water pump inlet and the outer skin of the common water supply pipe is dimensioned and added as a global parameter.

[0025] (33) The distance between the water pump inlet and the outer skin of the common water supply pipe is set as: L1+A+L2+A+L3+A+L4+(1.5 / 1)A+L5; where A is the length of the straight pipe section between the pipe fittings, and the value range is 50-100 mm. Thus, by adjusting the length A of the straight pipe section between the pipe fittings, the vertical position of the water pump can be adjusted and set after considering the structural parameters of each pipe fitting and pipe fitting.

[0026] (34) According to the pump house passage width corresponding to adjust the length A of the straight pipe section between pipe fittings, the longitudinal position of the water pump is determined. In this example, the length A of the straight pipe section between pipe fittings is in the range of 50-100 mm. In order to select the appropriate length of the straight pipe section between pipe fittings, the main passage width of the fire pump house should not be less than 1.2 m in this example to review the longitudinal placement position of the water pump, so that the longitudinal layout position of the water pump meets the requirements of the carrying of the fire equipment and the passage of personnel. In this example, the corresponding adjustment logic of A is: IF (and (main passage width > 1200 mm, fire pump control cabinet front passage width > 1500 mm), 100 mm, 50 mm), that is, when the main passage width is greater than 1200 mm and the fire pump control cabinet front passage width is greater than 1500 mm, A is set to 100 mm, otherwise A is adjusted to 50 mm. (4) The longitudinal position of the equipment foundation is determined based on the difference between the longitudinal position size of the water pump and the increased value of the foundation per side size.

[0027] After the longitudinal position of the water pump is determined, the longitudinal position of the equipment foundation for installing the water pump needs to be determined, which includes the following sub-steps: (41) The distance between the edge of the equipment foundation and the outer skin of the water supply pipe is marked and added as a global parameter.

[0028] (42) The global parameter corresponding to the distance between the edge of the equipment foundation and the outer skin of the water supply pipe is set as the difference between the distance from the outer skin of the water supply pipe to the water inlet of the water pump and the foundation periphery clearance size; wherein the foundation periphery clearance size is in the range of 150-250 mm, and the foundation periphery clearance size is the distance between the equipment foundation and other components around.

[0029] (43) The longitudinal passage width of the pump house is marked and added as a global parameter, and the position of the foundation is determined and set in the longitudinal direction according to the longitudinal passage width of the pump house being not less than 1.2 m. In this example, the adjustment logic of the longitudinal equipment foundation is: IF (main passage width > 1200 mm, 100 mm, 50 mm). That is, when the longitudinal main passage width is greater than 1200 mm, the longitudinal position of the equipment foundation is adjusted to move 100 mm, otherwise only 50 mm.

[0030] (5) The equipment foundation plane size is determined by the length, width of the water pump body and the increased value of the foundation per side size. Specifically, it includes the following sub-steps: (51) The equipment foundation transverse center line is aligned with the water pump transverse center line and locked; thereby the water pump and the equipment foundation are centered and aligned in the transverse direction.

[0031] (52) Add water pump corresponding instance parameters including water pump body length and water pump body width.

[0032] (53) Add global parameters corresponding to the water pump body length, water pump body width, equipment foundation length, and equipment foundation width, respectively.

[0033] (54) Associate the instance parameters corresponding to the water pump with the global parameters; thereby, when the length and width of the water pump body and the length and width of the equipment foundation change, the global parameters associated therewith can change correspondingly, realizing data and position following.

[0034] (55) Set the global parameter corresponding to the equipment foundation length as: equipment foundation length = water pump body length + 2 x equipment foundation peripheral protrusion size; and set the global parameter corresponding to the equipment foundation width as: equipment foundation width = water pump body width + 2 x foundation peripheral protrusion size; wherein, in this example, the foundation peripheral protrusion size is specifically the distance between the water pump edge and the equipment foundation edge.

[0035] (56) Correspondingly generate the equipment foundation plane size.

[0036] Thus, the plane size of the equipment foundation is determined by adding 2 times the increase value of the peripheral size of the equipment foundation to each side of the water pump size.

[0037] (6) Correspondingly determine the transverse position of the equipment foundation according to the total net length of the pump house, the cabinet width, the water pump foundation length, the net distance between pump groups, the net width between the pump group and the wall, and the net distance between the pump group and the cabinet. The longitudinal position of the equipment foundation has been determined in step (4), and the plane size of the equipment foundation has also been determined in step (5). In order to obtain the final layout position of the equipment foundation, this step realizes the adjustment and determination of the transverse position of the equipment foundation. According to the motor capacity, the net distance between the adjacent two fire-fighting water pumps is determined to the net distance between the fire-fighting water pump and the wall, and when the width of the passage in front of the fire-fighting water pump control cabinet in the pump house is not less than 1.5 m and the main passage width of the fire-fighting water pump house is not less than 1.2 m, the net distance between the adjacent two units and the wall is widened correspondingly. Specifically, the following sub-steps are included: (61) Label the net distance between pump groups, the net distance between the pump group and the wall, and the distance between the pump group and the cabinet, and add corresponding global parameters thereto; wherein the cabinet is a fire-fighting water pump control cabinet.

[0038] (62) Set the net distance between pump groups to 1500 mm, and the net distance between the pump group and the cabinet to 1500 mm; set the global parameter corresponding to the net distance between the pump group and the wall as: total net length of pump house - cabinet thickness - N x equipment foundation width - (N-1) x net distance between pump groups - net distance between pump group and cabinet; wherein N is the number of pump groups; for example, in this embodiment, the number of pump groups is 4, i.e. N = 4.

[0039] (63) Correspondingly adjust the transverse position of the equipment foundation.

[0040] (7) Based on the arrangement principle of transverse row, longitudinal line, and near water pump position, the layout positions of lighting lamps and weak current appliances are correspondingly optimized. Thus, the lighting lamps and weak current appliances on the top plane are arranged in rows and lines, and the shielding of various pipelines to the lighting lamps and weak current appliances is minimized. Therefore, based on the design blueprint, the lighting lamps and weak current appliances are made to approach the common reference line until they are collinear, and meanwhile, the lamps near the water pump are adjusted to achieve the best lighting effect. Specifically, the following sub-steps are included: (71) Draw the reference lines corresponding to the lighting lamps and weak current appliances. In this example, the reference lines are used as the virtual guide lines for the arrangement of the lighting lamps and weak current appliances, including the reference horizontal lines arranged along the transverse direction and the reference vertical lines arranged along the longitudinal direction.

[0041] (72) Adjust and lock the positions of the lighting lamps on the reference horizontal lines and adjust and lock the positions of the weak current appliances on the reference vertical lines in combination with the distribution of the beams. In this example, the lighting lamps and weak current appliances that coincide with the beam bodies in the source file are adjusted in combination with the distribution of the beams to avoid being arranged on the beam bodies.

[0042] (73) In order to facilitate the arrangement of the pipelines and improve the aesthetic level, the adjacent reference horizontal lines and the adjacent reference vertical lines are combined in this example, and the reference lines closer to the pump body are preferentially retained to correspondingly adjust the positions of the lighting lamps and weak current appliances. Thus, the lighting lamps are relatively concentrated on a single reference horizontal line, and the weak current appliances are relatively concentrated on a single reference vertical line to avoid being arranged in a staggered and messy manner. Considering that the main purpose of the lamps is to meet the illumination requirement for water pump maintenance, in this example, the reference lines closer to the pump body are limitedly retained, so that the lighting lamps are more distributed near the reference lines closer to the pump body, and the effective adjustment of the lighting lamps is achieved.

[0043] (8) Determine the horizontal direction positions of the top pipelines; correspondingly adjust the clearances between the pipelines close to the wall and the wall to match the seismic supports, correspondingly adjust the clearances between the pipelines close to the wall to match the widths of the side-by-side supports or common supports, and correspondingly adjust the clearances of the middle pipelines to match the widths of the side-by-side pipelines or pipes; specifically, the following sub-steps are included: (81) Label the pipes closest to the wall or beam, column and add a label thereto, and set the corresponding global parameter to 200-500 mm; in this embodiment, considering the differences in structure and size between water pipes and air pipes, in order to facilitate the arrangement of the seismic supports, if the pipe is a water pipe, the global parameter is correspondingly taken as the minimum value of 200 mm, and if the pipe is an air pipe, the global parameter is correspondingly taken as the maximum value of 500 mm. Accordingly, the positions of the pipes closest to the wall or beam, column are adjusted.

[0044] (82) Mark the pipeline close to the wall and add a label, and set its corresponding global parameter to 200-300 mm; accordingly adjust the position of the pipeline close to the wall and the beam column and the pipeline closest to the wall or beam, column.

[0045] (83) Mark the intermediate pipeline and add a label, and set its corresponding global parameter to 200-300 mm; wherein, in this example, the intermediate pipeline is the pipeline other than the pipeline close to the wall, and after the position of the pipeline closest to the wall and the pipeline close to the wall or beam, column is determined, the position of the intermediate pipeline is determined, that is, the distance between the intermediate pipeline and the adjacent pipeline is adjusted. In this example, if the intermediate pipeline is shared, the global parameter corresponds to the minimum value, and if the intermediate pipeline is not shared, the global parameter corresponds to the maximum value, so as to meet the installation space when the non-shared support is side by side.

[0046] (84) Mark the pipeline above the power distribution cabinet and add a label, and set its corresponding global parameter to the width of the power distribution cabinet body. Thus, by setting the distance between the pipelines above the power distribution cabinet, the distance between the pipelines above the power distribution cabinet is compared with the width of the cabinet body, so as to avoid water pipes above the power distribution cabinet, thereby avoiding the safety risks caused by water pipe leakage and other problems.

[0047] (85) Adjust the line slot and the outlet direction of the distribution box to be aligned.

[0048] (9) According to the vertical spacing of the pipeline and the minimum net height of the pump house, the vertical position of the top pipeline is adjusted; the space between the top of the line slot and the bottom of the beam satisfies the cable installation, the space between the top of the air pipe and the bottom of the line slot satisfies the air pipe insulation and the line slot support installation, and the space between the top of the water pipe and the bottom of the line slot satisfies the water pipe support installation; specifically including the following sub-steps: (91) Calculate the beam bottom height, and the beam bottom height is the difference between the structure elevation and the beam height.

[0049] (92) Mark the line slot top elevation and add a global parameter, and the global parameter corresponding to the line slot top elevation is: beam bottom height-line slot and beam bottom interval, wherein the line slot and beam bottom interval is 50-100 mm; thereby adjusting the line slot top elevation.

[0050] (93) Draw the elevation reference plane corresponding to the line slot bottom elevation, and adjust the line slot bottom to be flush with the reference plane, and then lock it, so that each line slot bottom can be in the same reference plane.

[0051] (94) Calculate the air pipe top elevation, and the air pipe top elevation = the wire duct bottom elevation - the wire duct and air pipe spacing; wherein the wire duct and air pipe spacing is in the range of 100-200 mm; and the air pipe bottom elevation is limited to not less than 2400 mm; thereby making the air pipe be located at the corresponding position below the wire duct. At the same time, the space between the air pipe top and the wire duct bottom can meet the requirements of air pipe insulation and wire duct support installation.

[0052] (95) Adjust the water pipe top elevation to be the same as the air pipe top elevation, and calculate the water pipe bottom elevation and add the global parameter, and in this example, the global parameter corresponding to the water pipe bottom elevation is: water pipe top elevation - water pipe outer diameter. At the same time, the space between the water pipe top and the wire duct bottom can meet the requirements of water pipe support installation.

[0053] (96) Draw the elevation reference plane corresponding to the water pipe bottom elevation, and lock it after adjusting the water pipe bottom to be flush with the reference plane, thereby making each water pipe bottom be in the same plane.

[0054] (10) Determine the position of the drainage ditch based on the filter and overflow pipe position; first draw the reference plane where the drainage ditch is located, align the reference plane with the pipe accessories and lock it, then align the drainage ditch with the reference plane and lock it; finally, manually supplement the necessary drainage ditch. Specifically, it includes the following sub-steps: (101) Draw the reference line corresponding to the filter, and lock it after adjusting the filter center line, drainage ditch center line, and the reference line to be aligned.

[0055] (102) Add drainage ditches at the positions corresponding to the water tank overflow pipe, water tank drain pipe, fire water test pipe, and water drain valve, and cancel the drainage ditches located on the passageway.

[0056] (11) Draw the construction according to the adjusted BIM model.

[0057] The example is based on the above method to design and construct the fire pump room of a certain project, including: the arrangement of water pumps and the position relationship of their outlet pipes are optimized, among which the position optimization of water pumps accounts for a total of 2. The length of the straight pipe section between the water supply pipe and the water pump accounts for 350mm, facilitating the installation of the two pipe supports and pressure gauges on this section. The increase value of the size of each side of the foundation is 200mm. The determining factors of the transverse position of the foundation include the total net width of the pump room, the width of one cabinet, the width of four foundations, the width from one foundation to the cabinet, and the net distance of three foundations. The transverse arrangement is based on the lighting arrangement and the row of weak current appliances, and the longitudinal arrangement is based on the weak current appliances and the line of lighting fixtures. The top pipeline is arranged according to the net distance of 300mm for the near-wall pipeline, 300mm for the second near-wall pipeline, and 200mm for the middle pipeline, under the premise of avoiding conflict with lighting appliances and weak current appliances. Under the premise that the lowest pipeline level net height is not less than 2300mm, the top level of the wire slot is 50mm higher than the beam net height, the top level of the water pipe is 50mm higher than the net height of the wire slot bottom, and the bottom level of the low water pipe is 2300mm. The drainage ditch is aligned with the filter, and a drainage ditch is added at the overflow pipe. By determining the key values, the water pumps, equipment foundations, lamps and various pipelines are driven to the specified positions or heights, achieving the purpose of quickly and efficiently completing the pipeline space arrangement of the pump room.

[0058] And the example takes a certain youth talent apartment project located in Zhengzhou as an example. The project construction mode is "EPC + prefabricated + finished product delivery" integration, which is composed of 20 residential buildings and supporting buildings, with a total construction area of 401300m2, 2 underground floors, locally 3 underground floors, 16 above-ground floors, and a building height of 46.81m. The basement and floors 1-3 are cast-in-place shear wall structures, and floors 4-16 are prefabricated shear wall structures. The above method is applied to design and construct the fire pump room of the project. The results show that there are 63 space arrangement points that meet the requirements in the certain youth talent apartment project, and the number of space arrangement that does not meet the requirements is 88. After optimizing the unqualified water pumps and pipelines, it is ensured that all pipelines meet the space arrangement requirements and prevent rework caused by not meeting the acceptance specification. Through project practice application, the drawing review efficiency is improved by 80%, the drawing review accuracy rate reaches 100%, and the engineering construction cost is saved by 2620000 yuan.

[0059] Although some preferred embodiments of the present application have been described, those skilled in the art can make additional changes and modifications to these embodiments once they know the basic creative concept. Therefore, the appended claims are intended to include the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0060] Obviously, many modifications and variations of the present application are possible in light of the above teachings. It is, therefore, to be understood that within the scope of the appended claims and their equivalents, the application can be practiced otherwise than as specifically described.

Claims

1. A BIM-based construction method for fire pump rooms, characterized in that, Includes the following steps: (1) Based on the design blueprints, BIM model the fire pump room and its components and facilities; (2) Determine the location of the outlet pipe from the pump room and the corresponding pump layout, and adjust the pump layout accordingly to eliminate the intersection between the outlet pipes corresponding to each pump. (3) Determine the longitudinal position of the water pump based on the length of the pipe fittings between the shared water supply pipe and the water pump and the length of the straight pipe section; and ensure that the longitudinal position meets the requirement that the width of the pump room passage is not less than 1.2m; (4) The longitudinal position of the equipment foundation is determined by subtracting the increase in the dimension of each side of the foundation from the longitudinal position dimension of the water pump; (5) The planar dimensions of the equipment foundation are determined by the length and width of the pump body and the increase in the dimensions of each side of the foundation; (6) Determine the lateral position of the equipment foundation based on the total net length of the pump room, the width of the cabinet, the length of the pump foundation, the net distance between pump sets, the net width between the pump set and the wall, and the net distance between the pump set and the cabinet. (7) Based on the layout principle of horizontal rows, vertical lines, and priority for the location near the water pump, optimize the layout of lighting fixtures and low-voltage electrical appliances accordingly; (8) Determine the horizontal position of the top pipeline; adjust the net distance between the pipeline close to the wall and the wall to match the seismic bracing; adjust the net distance between the pipeline close to the wall to match the width of the parallel or common bracing; adjust the net distance between the middle pipeline to match the width of the parallel fittings or pipes. (9) Adjust the vertical position of the top pipeline according to the vertical spacing of the pipeline and the minimum net height of the pump room; make the space between the top of the cable tray and the bottom of the beam sufficient for cable installation, make the space between the top of the air duct and the bottom of the cable tray sufficient for air duct insulation and cable tray support installation, and make the space between the top of the water pipe and the bottom of the cable tray sufficient for water pipe support installation. (10) Determine the location of the drainage ditch based on the location of the filter and overflow pipe; (11) Produce drawings and carry out construction.

2. The construction method for a fire pump room according to claim 1, characterized in that, Step (3) includes the following sub-steps: (31) Add global parameters L1, L2, L3, L4, and L5 corresponding to the lengths of tees, gate valves, filters, rubber expansion joints, and reducers, respectively; and associate the global parameters with the corresponding instance parameters. (32) Mark the distance between the water pump inlet and the outer sheath of the common water supply pipe and add it as a global parameter; (33) The global parameter corresponding to the distance between the water pump inlet and the outer skin of the common water supply pipe is: L1+A+L2+A+L3+A+L4+(1.5 / 1)A+L5; where A is the length of the straight pipe section between pipe fittings, and the value range is 50~100mm; (34) Adjust the length A of the straight pipe section between the pipe fittings according to the width of the pump room channel to determine the longitudinal position of the water pump.

3. The construction method for a fire pump room according to claim 1, characterized in that, Step (4) includes the following sub-steps: (41) Mark the distance between the edge of the equipment foundation and the outer skin of the water supply pipe, and add it as a global parameter; (42) The global parameter corresponding to the distance between the edge of the equipment foundation and the outer edge of the water supply pipe is: the difference between the distance from the outer edge of the water supply pipe to the water supply pump inlet and the clearance dimension around the foundation; wherein, the clearance dimension around the foundation is in the range of 150 to 250 mm; (43) Mark the width of the longitudinal passage of the pump room and add global parameters to it. Based on the fact that the width of the longitudinal passage of the pump room is not less than 1.2m, determine the location of the foundation in the longitudinal direction.

4. The construction method for a fire pump room according to claim 1, characterized in that, Step (5) includes the following sub-steps: (51) Align the transverse centerline of the equipment foundation with the transverse centerline of the water pump and lock it in place; (52) Add the corresponding instance parameters for the water pump, including the pump body length and the pump body width; (53) Add global parameters for the pump body length, pump body width, equipment foundation length, and equipment foundation width respectively: (54) Associate the instance parameters corresponding to the water pump with the corresponding global parameters; (55) Set the global parameter for the length of the corresponding equipment foundation as: Equipment foundation length = pump body length + 2 × protruding dimensions around the equipment foundation; Set the global parameter for the width of the corresponding equipment foundation as: Equipment foundation width = pump body width + 2 × protruding dimensions around the foundation; (56) Corresponding to the basic plane dimensions of the generated equipment.

5. The construction method for a fire pump room according to claim 1, characterized in that, Step (6) includes the following sub-steps: (61) Mark the net distance between pump sets, the net distance between pump sets and walls, and the distance between pump sets and cabinets, and add corresponding global parameters for each; (62) Set the net distance between pump groups to 1500mm and the net distance between pump groups and cabinets to 1500mm; set the global parameter corresponding to the net distance between pump groups and walls as: total net length of pump room - cabinet thickness - N × equipment foundation width - (N-1) × net distance between pump groups - net distance between pump groups and cabinets; where N is the number of pump groups. (63) Adjust the horizontal position of the equipment foundation accordingly.

6. The construction method for a fire pump room according to claim 1, characterized in that, Step (7) includes the following sub-steps: (71) Draw reference lines corresponding to lighting fixtures and low-voltage electrical appliances; (72) Adjust the position of the lighting fixtures to the reference horizontal line and lock them according to the distribution of the beams; adjust the position of the low voltage electrical appliances to the reference vertical line and lock them. (73) Merge adjacent reference horizontal lines and adjacent reference vertical lines, and prioritize retaining the reference lines that are closer to the pump body, and adjust the positions of lighting fixtures and low-voltage electrical appliances accordingly.

7. The construction method for a fire pump room according to claim 1, characterized in that, Step (8) includes the following sub-steps: (81) Mark the pipe closest to the wall and add a label to it, and set its corresponding global parameter to 200-500mm; where, if the pipe is a water pipe, the global parameter takes the minimum value, and if the pipe is an air duct, the global parameter takes the maximum value. (82) Mark the pipes that are closest to the wall and add labels to them, and set their corresponding global parameters to 200-300mm; (83) Mark the intermediate pipeline and add a label to it, and set its corresponding global parameter to 200~300mm; where, if the pipeline is on the same rack, the global parameter is taken as the minimum value, and if the pipeline is not on the same rack, the global parameter is taken as the maximum value. (84) Label the pipelines above the distribution cabinet and add labels to them, and set their corresponding global parameters to the width of the distribution cabinet; (85) Adjust the direction of the pipeline trunking to align with the outgoing line of the distribution box.

8. The construction method for a fire pump room according to claim 1, characterized in that, Step (9) includes the following sub-steps: (91) Calculate the bottom height of the beam, and the bottom height of the beam is the difference between the structural elevation, i.e., the story height and the beam height; (92) Mark the top elevation of the wire trough and add global parameters to it. The global parameters corresponding to the top elevation of the wire trough are: beam bottom height - spacing between wire trough and beam bottom, where the spacing between wire trough and beam bottom ranges from 50 to 100 mm. (93) Draw an elevation reference plane corresponding to the bottom elevation of the cable trough, and lock it after adjusting the bottom of the cable trough to be flush with the reference plane; (94) Calculate the top elevation of the duct, and the top elevation of the duct = the bottom elevation of the cable tray - the distance between the cable tray and the duct; the distance between the cable tray and the duct is 100-200mm; and the bottom elevation of the duct is limited to not less than 2400mm. (95) Adjust the top elevation of the water pipe to be the same as the top elevation of the air duct, calculate the bottom elevation of the water pipe and add global parameters to it, and the global parameter corresponding to the bottom elevation of the water pipe is: top elevation of water pipe - outer diameter of water pipe; (96) Draw the elevation reference plane corresponding to the bottom elevation of the water pipe, adjust the bottom of the water pipe to be level with the reference plane and then lock it.

9. The construction method for a fire pump room according to claim 1, characterized in that, Step (10) includes the following sub-steps: (101) Draw the reference line corresponding to the filter, adjust the center line of the filter and the center line of the drainage ditch to align with the reference line and then lock them; (102) Add drainage ditches at the locations corresponding to the overflow pipe, drain pipe, fire test pipe, and drain valve of the water tank, and remove the drainage ditches located on the passage.