Method for counting carbon emission in construction process based on BIM (Building Information Modeling) technology
Through a system based on BIM technology, people, materials, machines and carbon emissions during construction are counted, the problem of large carbon emissions in the construction industry is solved, information support for low-carbon green construction is provided, and carbon emissions are achieved. Quick statistics and reduction of quantity.
Patent Information
- Application Number
- CN202410365196.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-28
- Publication Date
- 2025-01-03
AI Technical Summary
The carbon emissions of the construction industry account for 40% of the total social energy consumption. It is difficult for the existing technology to effectively count and reduce carbon emissions during construction, and there is a lack of information support for low-carbon green construction.
Using a system based on BIM technology, the carbon emissions during building construction are calculated through five modules: BIM model creation, construction simulation, human, material, and machine consumption statistics, partial item carbon emission calculation and carbon emission output. Revit creates a three-dimensional model, simulates the construction stage, counts people, materials and machines consumption, calculates the total carbon emissions, and outputs Excel format reports.
It has achieved rapid statistics on carbon emissions during building construction, provided information support for low-carbon and green construction, helping the construction industry reduce carbon emissions and promote sustainable development.
Smart Images
Figure FT_1 
Figure FT_2 
Figure FT_3
Abstract
Description
Technical Field
[0001] The present invention relates to the field of building technology, and in particular to a method for counting carbon emissions during a construction process based on BIM technology. Background Art
[0002] According to relevant data, carbon emissions from the construction industry account for about 40% of the total social energy consumption. Carbon emission reduction has officially become a tool for a new round of political and economic competition between developed and developing countries. In this context, in order to help build a sustainable future, we start from informatization, summarize the experience of predecessors, combine the construction sequence in the construction process, integrate BIM technology, data information, and help promote low-carbon green construction of projects. Summary of the invention
[0004] The present invention provides a method for counting carbon emissions during construction based on BIM technology. The system uses computer equipment to perform calculations and can quickly count carbon emissions during the construction of a building.
[0005] The present invention has five modules in total, including a BIM model creation module, a BIM construction simulation module, a labor, material and machine consumption statistics module, a carbon emission calculation module by parts and items, and a carbon emission output module.
[0006] The BIM model creation module uses Revit to create a 1:1 restored BIM 3D model, including doors, windows, walls, roofs, slabs, ramps, underground sump, stairs, guardrails, special equipment, rolling doors, piles, structural foundations, structural columns, structural beams, structural walls, floor slabs, stairs, ring beams, structural columns, counterslopes, cable trays, tray accessories, HVAC and power equipment, air ducts, HVAC and power (including gas) pipelines, insulation layers, pipe fittings, accessories / duct terminals, equipment foundations, water supply and drainage equipment, bathroom fixtures, floor practices, wall practices, and ceiling BIM 3D models.
[0007] The BIM construction simulation module conducts construction simulation for the four stages of the construction process: foundation engineering, structural engineering, decoration engineering, and installation engineering.
[0008] The foundation engineering mainly includes: site leveling and compaction, earth excavation and transportation, foundation treatment, pile foundation construction, foundation pit support and construction drainage.
[0009] The structural engineering mainly includes: reinforcement engineering, formwork engineering, concrete engineering, masonry engineering, steel structure installation, and scaffolding engineering.
[0010] The decoration works mainly include: door, window and curtain wall installation, floor, wall and column surface, lightweight partition wall, roof and interior decoration and thermal insulation and waterproofing.
[0011] The installation projects mainly include: water and electricity systems, ventilation and air-conditioning systems, and elevator installation.
[0012] The manpower, material and machine consumption statistics module summarizes the manpower, material and machine consumption required in the above four stages.
[0013] Carbon emission calculation module by item: perform carbon emission calculation.
[0014] The total carbon emissions calculation formula during the construction of the building is:
[0015] Zc=(J foundation + J structure + J decoration + J installation)C
[0016] Where: Zc is the total carbon emission in the construction phase kgCO2; J 基础 is the energy consumption of foundation construction; J 结构 is the energy consumption of main structure construction; J 装修 is the energy consumption of indoor and outdoor decoration; J 安装 is the energy consumption of equipment installation; C is the CO2 equivalent carbon emission factor of energy, 0.69kgCO2 / kWh for electricity and 3.68kgCO2 / kg for diesel.
[0017] The energy consumption of the foundation, structure, decoration and installation stages is calculated by sub-item quantities. The formula is shown in Figure 1 .
[0018] Where: Q i is the engineering quantity of the ith sub-project; K i is the energy consumption adjustment coefficient of the ith sub-project, and different sub-projects have different meanings; F i is the energy consumption per unit of engineering volume of the ith sub-project, and different sub-projects have different meanings; F i is the energy consumption per unit of engineering quantity of the ith sub-project, see Figure 2 Formula calculation.
[0019] Where: A i,j is the consumption of the jth type of mechanical equipment per unit of engineering quantity, according to the "National Unified Basic Quota for Construction Engineering"; B i,j It is the energy consumption per unit shift of the j-th type of mechanical equipment per unit engineering volume, based on the "National Unified Construction Machinery Unit Cost Quota".
[0020] The carbon emission output module outputs the Excel format report based on the obtained carbon emission engineering quantity according to user needs and habits. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a formula for calculating carbon emissions based on the energy consumption of each project item during the foundation, structure, decoration and installation stages.
[0022] Figure 2 It is the calculation formula of energy consumption Fi per unit of engineering quantity of the ith sub-project.
[0023] Figure 3 It is a flowchart of the method for calculating carbon emissions during construction based on BIM technology.
[0024] Figure 4 It is a flowchart of the implementation module of the method for calculating carbon emissions during construction based on BIM technology. DETAILED DESCRIPTION
[0025] The following will provide a clear and complete description of the technical solutions in the implementation cases of the present invention in conjunction with the drawings in the examples of the present invention. Of course, the described implementation case is only an implementation example of the present invention, rather than all examples. Based on the implementation cases in the present invention, all examples obtained by ordinary technicians in this field without making any creative work are within the scope of protection of the present invention.
[0026] Firstly, the application scenario of the present invention is introduced, and the carbon emissions during the construction process are counted based on BIM technology.
[0027] Examples of the present invention:
[0028] See also Figure 3 .
[0029] like Figure 3 As shown in the figure, the case is a method for calculating carbon emissions during the construction process based on BIM technology.
[0030] The method comprises the following steps:
[0031] S101. Create a BIM 3D model that is 1:1 restored to the building based on the design drawings;
[0032] It includes foundation engineering, structural engineering, decoration engineering and installation engineering.
[0033] Specifically, create a BIM three-dimensional model that includes doors, windows, walls, roofs, slabs, ramps, underground sumps, stairs, guardrails, special equipment, rolling doors, piles, structural foundations, structural columns, structural beams, structural walls, floor slabs, stairs, ring beams, structural columns, counter-sills, cable trays, tray accessories, HVAC and power equipment, air ducts, HVAC and power (including gas) pipelines, insulation layers, pipe fittings, accessories / duct terminals, equipment foundations, water supply and drainage equipment, bathroom fixtures, floor practices, wall practices, and suspended ceilings.
[0034] S102. Carry out construction simulation for foundation engineering, structural engineering, decoration engineering and installation engineering.
[0035] Specifically, it includes site leveling and compaction, earth excavation and transportation, foundation treatment, pile foundation construction, foundation pit support and construction drainage in foundation engineering; reinforcement engineering, formwork engineering, concrete engineering, masonry engineering, steel structure installation, scaffolding engineering in structural engineering; door and window and curtain wall installation, floor, wall and column surfaces, lightweight partition walls, roof and interior fine decoration and insulation and waterproofing in decoration engineering; and construction simulation of water and electricity systems, ventilation and air-conditioning systems, and elevator installation in installation engineering.
[0036] S103. Determine the consumption of manpower, materials and machines during the construction process.
[0037] Specifically, for materials, secondary handling and vertical transportation are calculated; for machinery, the energy consumption of equipment used on the construction site, as well as installation, dismantling and transportation within the site are calculated; carbon emissions generated by labor are not included in the energy consumption during the construction process.
[0038] S104. Carry out statistics on carbon emission engineering quantities by item.
[0039] Specifically, the calculation includes the four stages of the above construction process, including foundation engineering, main structure construction, indoor and outdoor decoration, and water, heating and electrical pipeline installation. A total of four parts of carbon emissions are calculated.
[0040] The total carbon emissions during the construction of the building are calculated as follows:
[0041] Zc=(J foundation + J structure + J decoration + J installation)C
[0042] Where: Zc is the total carbon emission in the construction phase kgCO2; J 基础 is the energy consumption of foundation construction; J 结构 is the energy consumption of main structure construction; J 装修 is the energy consumption of indoor and outdoor decoration; J 安装 is the energy consumption of equipment installation; C is the CO2 equivalent carbon emission factor of energy, 0.69kgCO2 / kWh for electricity and 3.68kgCO2 / kg for diesel.
[0043] The energy consumption of the foundation, structure, decoration and installation stages is calculated by sub-item quantities. The formula is shown in Figure 1 .
[0044] Where: Q i is the engineering quantity of the ith sub-project; K i is the energy consumption adjustment coefficient of the ith sub-project, and different sub-projects have different meanings; F i is the energy consumption per unit of engineering volume of the ith sub-project, and different sub-projects have different meanings; F i is the energy consumption per unit of engineering quantity of the ith sub-project, see Figure 2 Formula calculation.
[0045] Where: A i,j is the consumption of the jth type of mechanical equipment per unit of engineering quantity, according to the "National Unified Basic Quota for Construction Engineering"; B i,j It is the energy consumption per unit shift of the j-th type of mechanical equipment per unit engineering volume, based on the "National Unified Construction Machinery Unit Cost Quota".
[0046] S105. Carbon emissions output.
[0047] Specifically, a statistical analysis of the overall carbon dioxide emissions is performed, and the calculated data model is converted into a report model commonly used by users.
Claims
1. A method for calculating carbon emissions during construction based on BIM technology, using a computer device to perform calculations, characterized in that: It includes BIM model creation module, BIM construction simulation module, manpower, material and machine consumption statistics module, sub-item carbon emission calculation module, and carbon emission output module, including the following steps: BIM model creation module: create a BIM three-dimensional model that is restored 1:1 with the building according to the design drawings; BIM construction simulation module: divide the construction process into four stages, foundation engineering, structural engineering, decoration engineering, and installation engineering, simulate the construction for different stages, and process BIM model data; manpower, material and machine consumption statistics module: BIM model simulates and outputs the engineering quantity of manpower, material and machine required in the construction process; sub-item carbon emission calculation module: determine the carbon emission consumption factor coefficient generated by the use of manpower, material and machine in the construction process of the building, among which the secondary handling and vertical transportation are calculated for materials; the energy consumption of equipment in the construction site, as well as the installation, demolition and handling consumption in the site are calculated for machinery; the carbon emissions generated by human labor are not included in the energy consumption in the construction process. Calculate the carbon emissions in the construction process of the building; the above-mentioned construction process includes four stages: foundation engineering, main structure construction, indoor and outdoor decoration, and water, heating and electrical pipeline installation. A total of 4 parts of carbon emissions are calculated. The total amount of carbon emissions during the construction of the building is calculated as follows: Zc=(Jfoundation+Jstructure+Jdecoration+Jinstallation)C; Where: Zc is the total carbon emission in the construction phase kgCO2; J 基础 is the energy consumption of foundation construction; J 结构 is the energy consumption of main structure construction; J 装修 is the energy consumption of indoor and outdoor decoration; J 安装 = is the energy consumption of equipment installation; C is the CO2 equivalent carbon emission factor of energy, 0.69kgCO2 / kWh for electricity and 3.68kgCO2 / kg for diesel. The energy consumption of the foundation, structure, decoration and installation stages is calculated by sub-item engineering quantities, and the formula is shown in Figure 1. Where: Q i is the engineering quantity of the ith sub-project; K i is the energy consumption adjustment coefficient of the ith sub-project, and different sub-projects have different meanings; F i is the energy consumption per unit of engineering volume of the ith sub-project, and different sub-projects have different meanings; F i is the energy consumption per unit of engineering quantity of the ith sub-project, F i The formula is shown in Figure 2. Where: A i,j is the consumption of the jth type of mechanical equipment per unit of engineering quantity, according to the "National Unified Basic Quota for Construction Engineering"; B i,j The unit energy consumption of the jth type of mechanical equipment per unit of engineering volume is based on the National Unified Construction Machinery Unit Cost Quota. Carbon emission output module: Performs overall carbon dioxide emission statistical analysis and converts the calculated data model into a report model commonly used by users.
2. A BIM model creation module according to claim 1, characterized in that Use BIM related software to create the model, which includes doors, windows, walls, roofs, slabs, ramps, underground sump, stairs, guardrails, special equipment, rolling doors, piles, structural foundations, structural columns, structural beams, structural walls, floor slabs, stairs, ring beams, structural columns, counter-sills, cable trays, tray accessories, HVAC and power equipment, air ducts, HVAC and power (including gas) pipelines, insulation layers, pipe fittings, accessories / duct terminals, equipment foundations, water supply and drainage equipment, bathroom fixtures, floor practices, wall practices, and suspended ceilings.
3. According to the BIM construction simulation module of claim 1: for the four stages in the construction process, site leveling and compaction, earth excavation and transportation, foundation treatment, pile foundation construction, foundation pit support and construction drainage in foundation engineering, reinforcement engineering, formwork engineering, concrete engineering, masonry engineering, steel structure installation, scaffolding engineering in structural engineering, door and window and curtain wall installation, floor, wall and column surface, lightweight partition wall, roof and interior fine decoration and insulation and waterproofing in decoration engineering, water and electricity system, ventilation and air-conditioning system, elevator installation in installation engineering are carried out for construction simulation.
4. According to claim 1, the manpower, material and machine consumption statistics module summarizes the manpower, material and machine usage at different stages output during the BIM model simulation construction.
5. According to the carbon emission calculation module of claim 1: perform carbon emission calculation, wherein the total carbon emission during the construction of the building is calculated by the formula: Zc=(Jfoundation+Jstructure+Jdecoration+Jinstallation)C; Where: Zc is the total carbon emission in the construction phase kgCO2; J 基础 is the energy consumption of foundation construction; J 结构 is the energy consumption of main structure construction; J 装修 is the energy consumption of indoor and outdoor decoration; J 安装 = is the energy consumption of equipment installation; C is the CO2 equivalent carbon emission factor of energy, 0.69kgCO2 / kWh for electricity and 3.68kgCO2 / kg for diesel. The energy consumption of the foundation, structure, decoration and installation stages is calculated by sub-item engineering quantities, and the formula refers to Figure 1. Where: Q i is the engineering quantity of the ith sub-project; K i is the energy consumption adjustment coefficient of the ith sub-project, and different sub-projects have different meanings; F i is the energy consumption per unit of engineering volume of the ith sub-project, and different sub-projects have different meanings; F i is the energy consumption per unit of engineering quantity of the ith sub-project, F i The formula is shown in Figure 2. Where: A i,j is the consumption of the jth type of mechanical equipment per unit of engineering quantity, according to the "National Unified Basic Quota for Construction Engineering"; B i,j It is the energy consumption per unit shift of the j-th type of mechanical equipment per unit engineering volume, based on the "National Unified Construction Machinery Unit Cost Quota".
6. According to the carbon emission output module of claim 1, the obtained carbon emission engineering quantity is outputted in Excel format according to user needs and habits.