A BIM-based electromechanical prefabrication system

Abstract

This application relates to a BIM-based electromechanical prefabrication system, which includes a function acquisition module, a usage requirement acquisition module, a peak value acquisition module, an electromechanical model acquisition module, an electromechanical pipeline installation and setting module, a construction drawing setting module, and a prefabrication module. This application enables the prefabrication of electromechanical pipelines based on a BIM model before pipeline laying, reducing work errors and improving construction efficiency.

Description

Technical Field

[0001] This application relates to the field of architecture, and in particular to a BIM-based prefabricated electromechanical system. Background Technology

[0002] With the popularization of computer technology, BIM (Building Information Modeling) technology is increasingly used in building construction to assist in design. BIM technology can help realize the integration of building information. From the design, construction, operation to the end of the building's entire life cycle, various information is always integrated into the three-dimensional model information database. Design teams, construction units, facility operation departments and owners can work together based on BIM, effectively improving work efficiency, saving resources, reducing costs, and achieving sustainable development.

[0003] The design of a BIM model is a design of the entire building, including the design of the building itself and the design of its supporting facilities. The supporting facilities include the building's power line system and various mechanical pipelines. If the power line system and various mechanical pipelines are only set up during the construction process, it is easy to produce large production errors and reduce work efficiency. Summary of the Invention

[0004] In order to enable the prefabrication of electromechanical pipelines based on BIM models before pipeline laying, thereby reducing work errors and improving work efficiency, this application provides a BIM-based electromechanical prefabrication system.

[0005] The BIM-based electromechanical prefabrication system provided in this application adopts the following technical solution:

[0006] A BIM-based electromechanical prefabrication system includes:

[0007] The function acquisition module is used to acquire the preset functions of each area of ​​the building through the BIM model. The preset functions are the functions that the building is expected to perform after construction is completed.

[0008] The usage demand acquisition module is used to acquire the usage demand of the area based on the preset usage functions. The usage demand includes water supply demand, power supply demand, ventilation demand and gas demand in terms of purpose.

[0009] The peak value acquisition module is used to acquire the peak water pressure of the water supply in the area based on the water supply demand, the peak power consumption during peak electricity consumption based on the power supply demand, the peak ventilation flow rate of the pipeline based on the ventilation demand, and the peak gas transmission pressure based on the gas demand.

[0010] The electromechanical model acquisition module is used to acquire the water supply pipeline model for the area based on the water pressure peak value, set the power transmission line model for the area based on the power consumption peak value, set the ventilation pipeline model based on the pipeline ventilation flow peak value, and set the gas supply pipeline model based on the gas transmission pressure peak value.

[0011] The electromechanical piping installation module is used to install and set the corresponding electromechanical piping in the BIM model according to the usage requirements. The electromechanical piping includes water pipes corresponding to the water supply pipe model, power lines corresponding to the power transmission line model, ventilation pipes corresponding to the ventilation duct model, and gas pipes corresponding to the gas pipeline model.

[0012] The construction drawing setting module is used to export the electromechanical pipelines installed on the BIM model as a layout drawing of the electromechanical pipelines, and set the construction drawings for the construction of the building based on the layout drawing;

[0013] The prefabrication module is used to prefabricate different electromechanical pipelines according to the construction drawings.

[0014] By adopting the above technical solutions, the function acquisition module acquires the preset usage functions of each area of ​​the building; the usage requirement acquisition module acquires multiple different usage requirements based on the preset usage requirements; the peak value acquisition module acquires the peak values ​​of multiple usage requirements according to the usage requirements; the electromechanical model acquisition module sets the corresponding water pipe model, power line model, ventilation duct model, and gas pipe model according to the usage peak values, so that different electromechanical pipes can withstand the output under peak conditions, increasing the safety performance of the building area; the electromechanical pipe installation setting module installs and sets the corresponding electromechanical pipes on the BIM model according to the usage requirements; the construction drawing setting module exports the electromechanical pipes installed on the BIM model as an electromechanical pipe layout drawing, and sets the layout drawing as the construction drawing for building construction, so that the prefabrication module can prefabricate different electromechanical pipes according to the construction drawing, reducing work errors, improving the installation efficiency of electromechanical pipes, and thus improving the overall construction efficiency of the building.

[0015] Optionally, the function acquisition module includes:

[0016] The scope definition unit is used to define different usage areas of a building in the BIM model according to the spatial layout.

[0017] A function marking unit is used to mark the preset functions of the usage area.

[0018] By adopting the above technical solution, the building's usage area can be defined by the scope framing unit, and the preset usage functions of the usage area can be marked by the function marking unit.

[0019] Optionally, the range defining unit includes:

[0020] The delineation area identification sub-unit is used to identify the delineation areas in the BIM model used to define different usage areas;

[0021] The area definition sub-unit defines different usage areas of the building by identifying the defined area.

[0022] By adopting the above technical solution, different usage areas can be defined by the identified defined areas, thereby increasing the effectiveness of the definition.

[0023] Optionally, the functional marking unit includes:

[0024] The area function determination subunit is used to determine whether the preset usage functions of the usage areas at both ends of the defined area are the same;

[0025] A marking subunit is used to mark the usage areas at both ends of the defined area as the same type of usage area when the judgment result of the area function judgment subunit is yes.

[0026] When the judgment result of the area function judgment subunit is negative, the usage areas at both ends of the defined area are marked as different usage areas.

[0027] By adopting the above technical solution, the area function judgment subunit determines whether the preset usage functions of the usage areas at both ends of the defined area are the same, and the marking subunit marks the usage areas accordingly based on the judgment result of the area function judgment subunit.

[0028] Optionally, the requirement acquisition module further includes:

[0029] The primary requirement acquisition unit is used to acquire the primary requirements of a designated usage area on a single floor of the building based on the preset usage functions.

[0030] The secondary demand acquisition unit is used to acquire the secondary demand of the usage demand in a single floor of the corresponding building based on the preset usage functions;

[0031] The third-level requirement acquisition unit is used to acquire the third-level requirements of the overall usage requirements of the corresponding building based on the preset usage functions.

[0032] By adopting the above technical solutions, it is possible to obtain different levels of usage requirements based on different building scopes.

[0033] Optionally, the peak acquisition module includes:

[0034] The variable setting unit is used to set environmental parameter variables in the BIM software according to changes in the environment.

[0035] An environmental simulation unit is used to simulate the building's usage environment in the BIM model based on the environmental parameter variables. In the usage environment, water supply and drainage, electricity, ventilation, and gas transmission all change dynamically over time.

[0036] The peak value acquisition unit is used to acquire the peak water pressure, peak power consumption, peak pipeline ventilation flow rate, and peak gas transmission pressure based on the simulated usage environment.

[0037] By adopting the above technical solution, the variable setting unit in the peak acquisition module sets environmental parameter variables in the BIM software according to environmental changes. The environmental simulation unit simulates the building's usage environment in the BIM model based on the environmental parameter variables. The peak acquisition unit obtains the corresponding usage peak based on the simulated usage environment, enabling the usage peak to be used as the upper limit for the use of electromechanical pipelines, thereby increasing the safety of using electromechanical pipelines.

[0038] Optionally, the electromechanical piping installation module includes:

[0039] The switch node setting unit is used to set up primary switch nodes that connect to external electromechanical pipelines according to the building's resource requirements and emission requirements, while secondary switch nodes that connect to the corresponding equipment are set up inside the building.

[0040] The diversion node setting unit is used to set up multiple diversion nodes in the building according to the differences between the primary demand, the secondary demand and the tertiary demand.

[0041] By adopting the above technical solution, the switch nodes are set up with primary switch nodes that connect to external electromechanical pipelines according to the building's resource and emission requirements. This allows the building to be isolated from or connected to the external environment through the setting of primary switch nodes. Secondary switch nodes are set up inside the building to connect to the corresponding equipment. This allows the building to be separated from and connected to the corresponding equipment through secondary switch nodes. The diversion node setting unit can set up multiple diversion nodes in the building according to primary, secondary, and tertiary requirements, so as to divert the flow step by step through the diversion nodes, so as to achieve the effect of safe use by the end users.

[0042] Optionally, the electromechanical piping installation module further includes:

[0043] A pipeline installation unit is used to install the primary electromechanical pipeline between the primary switch node and the primary branch node according to a pipeline topology algorithm, to install the secondary electromechanical pipeline between the primary branch node and the secondary branch node according to a pipeline topology algorithm, and to install the tertiary electromechanical pipeline between the secondary branch node and the secondary switch node according to a pipeline topology algorithm.

[0044] The obstacle avoidance unit is used to identify non-removable points in the BIM model and avoid the non-removable points of the building when installing the primary switch node, secondary switch node, primary diversion node, secondary diversion node, primary electromechanical pipeline, secondary electromechanical pipeline and the tertiary electromechanical pipeline.

[0045] By adopting the above technical solution, corresponding primary, secondary, and tertiary electromechanical pipelines are installed in the pipeline through the pipeline installation unit, enabling the transmission of physical materials or energy at different levels through different levels of electromechanical pipelines; the obstacle avoidance unit identifies non-removable points in the pipeline to reduce damage to the building during pipeline installation.

[0046] Optionally, the non-removable points include load-bearing walls, load-bearing beams, load-bearing columns, and shear walls.

[0047] Optionally, the prefabricated module includes:

[0048] The material prefabrication unit is used to output different materials for the electromechanical pipelines according to the construction drawings, and to prefabricate the electromechanical pipelines according to the materials.

[0049] A connector prefabrication unit is used to prefabricate the connectors of the electromechanical pipeline according to the connection method of the electromechanical pipeline.

[0050] By adopting the above technical solution, the material prefabrication unit prefabricates the electromechanical pipes according to the output drawings, and the connector prefabrication unit prefabricates the connectors according to the connection method, so as to achieve the effect of prefabrication of electromechanical pipes and connectors, which facilitates the installation of electromechanical pipes through prefabricated electromechanical pipes and connectors.

[0051] In summary, this application includes at least one of the following beneficial technical effects:

[0052] Based on the BIM model, the function acquisition module obtains the preset functions of each area of ​​the building; the usage requirement acquisition module obtains multiple different usage requirements based on the preset usage requirements; the peak value acquisition module obtains the peak values ​​of multiple usage requirements; the electromechanical model acquisition module sets the corresponding water pipe model, power line model, ventilation duct model, and gas pipe model according to the usage peak values, so that different electromechanical pipes can withstand the output under peak conditions, increasing the safety performance of the building area; the electromechanical pipe installation setting module installs the corresponding electromechanical pipes on the BIM model according to the usage requirements; the construction drawing setting module exports the electromechanical pipes installed on the BIM model as an electromechanical pipe layout drawing, and sets the construction drawings for building construction based on the layout drawing, so that the prefabrication module can prefabricate different electromechanical pipes according to the construction drawings, reducing work errors, improving the installation efficiency of electromechanical pipes, and thus improving the overall construction efficiency of the building. Attached Figure Description

[0053] Figure 1 This is a structural block diagram of a BIM-based electromechanical prefabrication system according to this application.

[0054] Attached reference numerals: 1. Function acquisition module; 2. Usage requirement acquisition module; 3. Peak value acquisition module; 4. Electromechanical model acquisition module; 5. Electromechanical pipeline installation and setting module; 6. Construction drawing setting module; 7. Prefabrication module. Detailed Implementation

[0055] The present application will be further described in detail below with reference to the accompanying drawings.

[0056] To improve work efficiency by enabling the prefabrication of electromechanical pipelines based on BIM models before pipeline laying, this application discloses a BIM-based electromechanical prefabrication system, referring to... Figure 1 ,include:

[0057] Function acquisition module 1 is used to acquire the preset functions of each area of ​​the building through the BIM model. The preset functions are the functions that the building is expected to perform after construction is completed.

[0058] The pre-set functions of different areas of the building are different. For example, when the building is an office building or other office space, the different areas of the building include various types of offices and their supporting facilities such as restrooms; when the building is a shopping mall or other place for selling goods, the different areas of the building include various types of shops, product exhibition areas and entertainment venues; and when the building is a residential building or other residential place, the different areas of the building include different types of commercial housing or other types of housing and their supporting facilities.

[0059] To enable the classification of different types of buildings and different types of usage areas, the functional acquisition module 1 includes:

[0060] Scope definition units are used to define different usage areas of a building in the BIM model based on the spatial layout.

[0061] The scope of different use areas varies. For example, when the building is an office building, the spatial layout of the office building can be as follows: the underground floor is set up as a parking lot or shopping mall, the ground floor is a shopping mall or reception hall, and the upper floor is an office area; the use area of ​​the parking lot includes different parking spaces and driving lanes connecting the parking spaces; the use area of ​​the shopping mall includes different shops, showrooms, and personal hygiene areas such as restrooms; the use area of ​​the office area includes multiple office areas of different sizes set up on each floor, as well as personal hygiene areas set up on each floor. Therefore, different use areas are defined in the BIM model according to the spatial layout.

[0062] To make the definition of the range of the bounding unit more reasonable and reduce errors in the bounding process, the bounding unit includes:

[0063] The delineation area identification sub-unit is used to identify delineation areas in the BIM model that define different usage areas.

[0064] Among them, the defined area is the area used to distinguish one area from another. For example, in the BIM model of an office building, the usable area may include the office area, corridors, elevators, staircases and other passage areas, as well as the hygiene and cleaning areas such as restrooms. The defined area that distinguishes one area from another, such as the defined area between the office area and the corridor, may include the doors and partition walls set between the office area and the corridor. Since the defined area has the function of separating two different areas, it can not only be used to separate two usable areas, but also to separate different spaces within a usable area.

[0065] The area delineation sub-unit defines different usage areas by identifying the delineation area.

[0066] In this embodiment, after the defined area identification subunit identifies the defined area, the usable area is defined by combining the building's own exterior walls and curtain walls, which are isolated from the external environment. In this embodiment, identification models are established for different usable areas, such as office area models, hygiene and cleaning area models, and corridor models. Since each usable area is in a rough state before operation, the spatial layout is relatively similar, so the location of the defined area is identified through the identification model. For example, the office area identification model identifies the type of the office area's door and partition wall, thereby identifying the location of the office area. In the shop identification model, all types of shops in the BIM model are stored. After identifying the defined area of ​​the shop, the shop type is matched through the defined area to identify the shop type. Once the shop type is identified, the usable area of ​​the shop can be defined. For example, if the shop identification model identifies the defined area in the BIM model, the shop type is matched as a community shop, and based on the matching result, the usable area in the BIM model is a ground-floor shop facing north.

[0067] After defining the usage area, it is also necessary to know the functions used in the usage area. Therefore, the function acquisition module 1 also includes a function marking unit. The function marking unit is used to mark the preset functions used in the usage area.

[0068] Among them, the preset usage functions are the functions that the building's usage areas are expected to use after completion. For example, when the building is a shopping mall, one floor of the mall is all shops for food and beverage sales, while other floors are shops selling different goods. In the early stage of building construction, during the BIM model modeling stage, corresponding markings need to be made to mark the preset usage functions of the usage areas so that different types of facilities can be set up in a targeted manner. For example, when a shop is marked as a food and beverage shop, the laying of natural gas pipelines and the supply of natural gas need to be considered in the food and beverage shop.

[0069] Functional marker unit, including:

[0070] The area function judgment subunit is used to determine whether the preset usage functions of the usage areas at both ends of the defined area are the same.

[0071] Since the two ends of a defined area are not necessarily different use areas, they may also be different spaces within the same use area. For example, a door located inside an office area may have office areas on both sides, while a door located near an outside corridor in an office area may have office areas on one side and an outside corridor on the other. Therefore, it is necessary to determine whether the preset functions of the use areas at both ends of the defined area are the same.

[0072] The marking subunit is used to mark the usage areas at both ends of the defined area as the same type of usage area when the judgment result of the area function judgment subunit is yes.

[0073] When the judgment result of the regional function judgment subunit is negative, the usage areas at both ends of the defined region will be marked as different usage areas.

[0074] In this embodiment, when the region function determination subunit determines "yes," it indicates that the preset usage functions of the usage areas at both ends of the defined region are the same, and the usage areas at both ends of the defined region are marked as the same type of usage area. When the region function determination subunit determines "no," it indicates that the preset usage functions of the usage areas at both ends of the defined region are different. In this embodiment, the marking method can be to use different colored blocks, such as marking different usage areas with different colored blocks and marking the same usage areas with the same colored blocks. In other embodiments, text labels or other forms of marking can also be used.

[0075] After marking the usage area, the corresponding usage requirements for that area need to be obtained. In this application, this is done using a requirement acquisition module 2. This module is used to obtain the usage requirements for the area based on preset usage functions. The usage requirements include water supply requirements, power supply requirements, ventilation requirements, and gas requirements. Water supply requirements refer to the building's daily water supply and wastewater discharge requirements; power supply requirements refer to the building's electricity requirements; ventilation requirements refer to the building's airtightness requirements; and gas requirements refer to the building's natural gas requirements. Since actual building models and the building's usage requirements are more numerous, this application only lists these four typical requirements. However, in actual use, the acquisition principles for other requirements are similar to the four requirements disclosed in this application, and will not be elaborated further here.

[0076] Once the usage demand is obtained, it is important to understand that in actual production and daily life, due to the dynamic nature of personnel movement, the usage demand is also dynamic, resulting in peak and off-peak periods. If the building's related pipes and lines cannot withstand the peak usage demand, it will affect the normal use of the building. Therefore, this application requires obtaining the peak values ​​of these usage demands. Peak value acquisition module 3 is used to obtain the peak water pressure of the water supply in the area based on water supply demand, the peak power consumption during peak electricity consumption based on power supply demand, the peak ventilation flow rate of the pipes based on ventilation demand, and the peak gas transmission pressure based on gas demand.

[0077] Peak acquisition module 3 includes:

[0078] The variable setting unit is used to set environmental parameter variables in the BIM software based on changes in the environment. These environmental parameter variables include information related to the geography, environment, time, building components, equipment, materials, and personnel surrounding the building. This facilitates the simulation of dynamic changes in the building within the real environment.

[0079] The environmental simulation unit is used to simulate the building's usage environment in the BIM model based on environmental parameter variables. The water supply and drainage, electricity, ventilation and gas transmission in the usage environment all change dynamically over time.

[0080] The peak acquisition unit is used to acquire peak water pressure, peak power consumption, peak pipeline ventilation flow rate, and peak gas transmission pressure based on the simulated operating environment.

[0081] For example, the electrical load of an office building includes lighting, air conditioning, related office equipment, parking facilities, fans and pumps, and elevator operation. The electricity consumption of an office building is different during peak hours and off-peak hours after get off work. The typical power consumption per unit of an office building is 30-70W / m2, and the electrical lines of the electromechanical pipelines must be able to withstand the maximum power demand. In this application, the different peak values ​​are obtained based on the estimated usage of the office building.

[0082] After obtaining the various peak values, the corresponding electromechanical pipe model needs to be set according to the peak value. In this embodiment, this can be done through the electromechanical model acquisition module 4. The electromechanical model acquisition module 4 is used to obtain the water supply pipe model for the area based on the water pressure peak value, set the power transmission line model for the area based on the power consumption peak value, set the ventilation duct model based on the ventilation flow peak value, and set the gas supply duct model based on the gas transmission pressure peak value. In this embodiment, the electromechanical pipe model is obtained based on the peak value it withstands. For example, if the peak voltage in an office building reaches 1KV, a 1KV 4-core YVJ cable can be used. Different brands of the same electromechanical pipe model are not within the scope of this application. The specific brand is obtained based on the actual cost and cost-effectiveness.

[0083] After obtaining the corresponding electromechanical pipeline model, it is necessary to simulate the installation and layout of the power transmission pipeline based on the BIM model in order to understand the specific usage requirements. In this embodiment, the electromechanical pipeline installation and setting module 5 is used to simulate the installation and setting of electromechanical pipelines.

[0084] The Mechanical and Electrical Piping Installation Module 5 is used to install corresponding mechanical and electrical pipes in the BIM model according to usage requirements. These pipes include water supply pipes of corresponding models, power transmission lines of corresponding models, ventilation ducts of corresponding models, and gas pipes of corresponding models. Water supply pipes connect external water inlet valves to water outlets within the building, such as faucets at various water usage locations. They may also pass through water storage facilities within the building, such as water tanks, and pressure regulating facilities, such as various water valves. One end of the power transmission lines connects to the external power grid, and pressure is regulated through power distribution shafts, low-voltage shafts, and corresponding distribution boxes before connecting to various sockets in the usage spaces. Ventilation ducts connect the external air environment to different usage spaces within the building through air conditioning systems such as fresh air exchange systems and central air conditioning. Gas pipes are laid at locations with gas demand, connecting to corresponding pressure regulating valves and metering facilities.

[0085] Using Module 2 for requirements gathering also includes:

[0086] The primary demand acquisition unit is used to acquire the primary demand for a designated area on a single floor of a building based on preset usage functions. Primary usage demand refers to the demand for a specific area on a single floor of the building. For example, the usage demand for a designated office area in a building may include requirements for electricity, water supply, and air conditioning. Similarly, the demand for a shop designated for the catering industry in a building may include requirements for electricity, water supply, and air conditioning, and may also include requirements for gas, etc.

[0087] The secondary demand acquisition unit is used to acquire the secondary demand for the corresponding single floor of the building based on preset usage functions. The secondary demand refers to the usage requirements of a single floor of the building, which includes not only all the primary demand on that floor, but also the demand for all public areas on that floor, such as corridors and restrooms.

[0088] The Level 3 Demand Acquisition Unit is used to acquire Level 3 demands for the overall use of the building based on preset usage functions. Level 3 demands refer to the overall usage demands of the building, including all Level 2 demands within the building, as well as the usage demands of surrounding facilities belonging to the building, such as lighting demands on the building's perimeter.

[0089] Because the variables vary significantly between different needs—for example, the voltage connecting to the building's electrical shafts differs greatly from the voltage of commonly used electrical outlets within the building—different nodes, such as transformers of different levels, need to be installed. Therefore, the electromechanical piping installation module 5 includes:

[0090] The switch node setting unit is used to set up primary switch nodes that connect to external electromechanical pipelines according to the building's resource and emission requirements, while secondary switch nodes that connect to the corresponding equipment are set up inside the building.

[0091] The diversion node setting unit is used to set up multiple diversion nodes in the building according to the differences between primary, secondary and tertiary needs.

[0092] In this embodiment, different electromechanical pipelines are equipped with different nodes. "Primary switch node" and "secondary switch node" are just general terms. In other embodiments, tertiary switch nodes and quaternary switch nodes can be set according to usage requirements. For example, in a power transmission line, a primary node can be a node formed by a high-voltage shaft connecting the external power grid to the building's internal power supply and its transformer and distribution facilities; a secondary node can be a node formed by a low-voltage shaft and its distribution transformer facilities; and a tertiary node can be a socket switch, light switch, etc., in actual use. Therefore, by setting up primary switch nodes, secondary switch nodes, and distribution nodes, it is possible to distribute and allocate external resources layer by layer. Setting up corresponding primary nodes, secondary nodes, and distribution nodes according to the actual needs of the BIM model facilitates use.

[0093] After setting up the mechanical and electrical piping and the corresponding nodes for allocation, the mechanical and electrical piping needs to be installed in the BIM model according to the actual situation. Therefore, the mechanical and electrical piping installation setting module 5 also includes:

[0094] The pipeline installation unit is used to install primary electromechanical pipelines between primary switch nodes and primary branch nodes according to a pipeline topology algorithm; to install secondary electromechanical pipelines between primary and secondary branch nodes according to a pipeline topology algorithm; and to install tertiary electromechanical pipelines between secondary branch nodes and secondary switch nodes according to a pipeline topology algorithm. The installation principles of the primary, secondary, and tertiary electromechanical pipelines are similar to those of the corresponding nodes, all involving the hierarchical allocation of resources from external resources or large equipment such as fresh air systems and central air conditioning systems, facilitating use within the designated area.

[0095] The obstacle avoidance unit is used to identify non-removable points in the BIM model and avoid these points during the installation of primary switch nodes, secondary switch nodes, primary distribution nodes, secondary distribution nodes, primary electromechanical pipelines, secondary electromechanical pipelines, and tertiary electromechanical pipelines. In this embodiment, non-removable points are locations of significant importance to the building, such as load-bearing walls, load-bearing beams, load-bearing columns, and shear walls. In other embodiments, non-removable points may also include locations of significant importance, such as cultural walls of important commemorative significance. During the installation of electromechanical pipelines, these non-removable points need to be identified by the obstacle avoidance unit to reduce the impact on the building's physical or spiritual aspects.

[0096] Module 6, the construction drawing setup module, is used to export the installed MEP (Mechanical, Electrical, and Plumbing) piping from the BIM model as a layout drawing, and then set up the construction drawings for building construction based on the layout drawing. Once the MEP piping setup is complete, the corresponding construction drawings can be exported using BIM software such as Revit. The exported format is typically DWG, which can be opened by CAD software. The construction drawing setup module also includes collision detection for MEP piping. It detects whether there are any intersections or collisions during the laying of MEP piping, obtains the collision results, and optimizes the design of the intersection locations when collisions are found. For example, it optimizes the design from a cost perspective, setting lower-cost piping as U-shaped or №-shaped.

[0097] After exporting the construction drawings, the corresponding electromechanical pipelines can be prefabricated according to the models of the electromechanical pipelines on the drawings. Prefabrication module 7 is used to prefabricate different electromechanical pipelines according to the construction drawings.

[0098] Prefabricated module 7 includes:

[0099] Material prefabrication unit is used to output different materials for electromechanical pipes according to construction drawings, and to prefabricate electromechanical pipes according to the materials.

[0100] The connector prefabrication unit is used to prefabricate connectors for electromechanical pipelines according to their connection methods. These connectors include connection terminals and connection switches, among other tools.

[0101] By using material prefabrication units and connector prefabrication units, the electromechanical pipes and their corresponding connectors are prefabricated separately, increasing the prefabrication speed. In other embodiments, construction simulations can be performed on the electromechanical pipe prefabrication scheme, and the prefabricated electromechanical pipes can be further optimized based on the simulation results, thereby further reducing the prefabrication cost of the electromechanical pipes.

[0102] The implementation principle of a BIM-based prefabricated electromechanical system in this application embodiment is as follows: Function acquisition module 1 acquires the preset usage functions of each area of ​​the building; Usage requirement acquisition module 2 acquires multiple different usage requirements based on the preset usage requirements; Peak value acquisition module 3 acquires the peak values ​​of multiple usage requirements according to the usage requirements; Electromechanical model acquisition module 4 sets the corresponding water pipe model, power line model, ventilation duct model, and gas pipe model according to the usage peak values, so that different electromechanical pipes can withstand the output at peak conditions, increasing the safety performance of the building area; Electromechanical pipe installation setting module 5 installs and sets the corresponding electromechanical pipes on the BIM model according to the usage requirements; Construction drawing setting module 6 exports the electromechanical pipe layout diagram based on the electromechanical pipes installed on the BIM model, and sets the construction drawings for building construction based on the layout diagram, so that the prefabrication module 7 can prefabricate different electromechanical pipes according to the construction drawings, reducing work errors, improving the installation efficiency of electromechanical pipes, and thus improving the overall construction efficiency of the building.

[0103] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A BIM-based electromechanical prefabrication system, characterized by, The application relates to a BIM model-based building construction method, which comprises the following steps: a function acquisition module (1) is used for acquiring preset use functions of each area of a building through a BIM model, wherein the preset use functions are functions that the building is expected to play after being completed and put into use; a use demand acquisition module (2) is used for acquiring use demands of the area based on the preset use functions, wherein the use demands include water supply demands, power supply demands, ventilation demands and gas demands in terms of use; a peak value acquisition module (3) is used for acquiring a water pressure peak value of water supply of the area based on the water supply demands, acquiring an electric power peak value of power consumption during a power consumption peak period based on the power supply demands, acquiring a pipeline ventilation flow peak value based on the ventilation demands and acquiring a gas transmission pressure peak value based on the gas demands; an electromechanical type acquisition module (4) is used for acquiring a water supply pipeline type for the area according to the water pressure peak value, setting a power transmission line type of the area according to the electric power peak value, setting a ventilation pipeline type according to the pipeline ventilation flow peak value and setting a gas pipeline type of gas supply according to the gas transmission pressure peak value; an electromechanical pipeline installation setting module (5) is used for installing and setting corresponding electromechanical pipelines according to the use demands in the BIM model, wherein the electromechanical pipelines include water supply pipelines corresponding to the water supply pipeline type, power transmission lines corresponding to the power transmission line type, ventilation pipelines corresponding to the ventilation pipeline type and gas pipelines corresponding to the gas pipeline type; a construction drawing setting module (6) is used for exporting the installed and set electromechanical pipelines on the BIM model as a layout drawing of the electromechanical pipelines and setting construction drawings for constructing the building based on the layout drawing; a prefabrication module (7) is used for prefabricating different electromechanical pipelines according to the construction drawings; the use demand acquisition module (2) comprises: a first-level demand acquisition unit used for acquiring first-level demands of a specified use area of a single floor of the building based on the preset use functions; a second-level demand acquisition unit used for acquiring second-level demands of the use demands in a single floor of the building based on the preset use functions; a third-level demand acquisition unit used for acquiring third-level demands of the use demands of the whole building based on the preset use functions; the electromechanical pipeline installation setting module (5) comprises: a switch node setting unit used for setting a first-level switch node connected with external electromechanical pipelines according to building resource demands and discharge demands, and setting a second-level switch node connected with corresponding use equipment in the building; a shunt node setting unit used for setting first-level and second-level shunt nodes in the building according to differences among the first-level demands, the second-level demands and the third-level demands; a pipeline installation unit used for installing and setting first-level electromechanical pipelines between the first-level switch node and the first-level shunt node according to a pipeline topology algorithm, installing and setting second-level electromechanical pipelines between the first-level shunt node and the second-level shunt node according to the pipeline topology algorithm and installing and setting third-level electromechanical pipelines between the second-level shunt node and the second-level switch node according to the pipeline topology algorithm. An obstacle avoidance unit is configured to identify non-detachable points in the BIM model and avoid the non-detachable points of the building when installing the primary switch node, the secondary switch node, the primary shunt node, the secondary shunt node, the primary mechanical and electrical pipeline, the secondary mechanical and electrical pipeline, and the tertiary mechanical and electrical pipeline. The secondary demand includes all the primary demands in the floor and the demands of all the public areas in the floor, and the tertiary demand includes all the secondary demands in the building and the use demands of the facilities corresponding to the building.

2. A BIM-based electromechanical prefabrication system according to claim 1, characterized in that, The function acquisition module (1) comprises: A range framing unit is configured to define different use areas of the building according to the spatial layout in the BIM model. A function marking unit is configured to mark the preset use functions of the use areas.

3. A BIM-based electromechanical prefabrication system according to claim 2, characterized in that, The range framing unit comprises: A defined area identification subunit is configured to identify defined areas for defining different use areas in the BIM model. A region defining subunit defines different use areas of the building by the identified defined areas.

4. A BIM-based electromechanical prefabrication system according to claim 3, characterized in that, The function marking unit comprises: A region function judgment subunit is configured to judge whether the preset use functions of the use areas at both ends of the defined area are the same. A marking subunit is configured to mark the use areas at both ends of the defined area as the same use area when the judgment result of the region function judgment subunit is yes. When the judgment result of the region function judgment subunit is no, the use areas at both ends of the defined area are marked as different use areas.

5. A BIM-based electromechanical prefabrication system according to claim 1, characterized in that, The peak acquisition module (3) comprises: A variable setting unit is configured to set environmental parameter variables in the BIM software according to environmental changes. A use environment simulation unit is configured to simulate the use environment of the building in the BIM model based on the environmental parameter variables, and the water supply and drainage, electricity, ventilation, and gas transmission in the use environment dynamically change over time. A peak acquisition unit is configured to acquire the water pressure peak value, the electricity power peak value, the pipeline ventilation flow peak value, and the gas transmission pressure peak value based on the simulated use environment.

6. A BIM-based electromechanical prefabrication system according to claim 1, characterized in that, The non-detachable points include load-bearing walls, load-bearing beams, load-bearing columns, and shear walls.

7. A BIM-based electromechanical prefabrication system according to claim 1, characterized in that, The prefabrication module (7) comprises: A material prefabrication unit is configured to output different materials of the mechanical and electrical pipelines according to the construction drawings and prefabricate the mechanical and electrical pipelines according to the materials. A connector prefabrication unit is configured to prefabricate the connectors of the mechanical and electrical pipelines according to the connection modes of the mechanical and electrical pipelines.

Images