A green building design method and system based on BIM technology

Abstract

The present invention relates to the field of building information technology, and in particular to a green building design method and system based on BIM technology, the system comprising a model building module for building a BIM model of a green building, a construction simulation module, comprising a prestress determination unit and a construction simulation unit connected to each other, the prestress determination unit for calculating a prestress adjustment parameter to determine the prestress applied to the green building during construction simulation, the construction simulation unit for performing 4D construction simulation using the BIM model, a determination module for determining whether the construction simulation is passed according to the deformation amount generated by the prefabricated components in the construction simulation, or determining the adjustment parameters of the BIM model, a calculation module for calculating the adjustment parameters corresponding to the adjustment parameters of the BIM model to adjust the adjustment parameters of the BIM model to corresponding values, and sending the adjustment results to the model building module for updating and optimizing the BIM model. The present invention improves the quality and safety of green buildings.

Description

Technical Field

[0001] The present invention relates to the field of building information technology, and in particular to a green building design method and system based on BIM technology. Background Art

[0002] The concept of energy conservation and low carbon is giving new development logic to all walks of life. The construction industry, one of the key industries in carbon emissions, is gradually bidding farewell to the era of large-scale demolition and construction and is reshaping a new construction model.

[0003] At present, prefabricated green buildings are widely adopted due to their advantages such as high efficiency, environmental protection and controllable quality. However, traditional construction management methods have problems such as poor information transmission, low coordination efficiency and waste of resources. The introduction of BIM technology is expected to effectively solve the above problems and improve the intelligent management level of prefabricated green building construction by building digital models and realizing information integration and sharing.

[0004] Chinese patent application publication number: CN115419164A discloses a green prefabricated building and its design method, wherein the green prefabricated building includes: a dual-use base, on which a plurality of longitudinal grooves are evenly distributed along the length direction; and a base plate that can be inserted into the longitudinal groove; a connecting seat with a rectangular structure and an upper opening as a connecting piece between the dual-use bases or for sealing the ends of the dual-use bases in the length direction; and a first edge sealing plate, including a positioning column II of a square column structure, one end of which is fixedly connected to the corner of the positioning column II, and a one-way splicing plate II whose middle part is fixedly connected to the other end of the connecting rib II, wherein the positioning column II is used to be fixed in the connecting seat, and the splicing plate II can be located in the same vertical plane as the base plate; the design method includes the following steps: S1, planning the length and height of the wall that is a single layer in height, in order to enhance the firmness.

[0005] However, traditional construction management methods are unable to simulate, optimize and automate the construction process of green buildings in advance, resulting in lower construction efficiency and quality of green buildings and lower safety of green buildings. Summary of the invention

[0006] To this end, the present invention provides a green building design method and system based on BIM technology, so as to overcome the problem that the prior art cannot simulate, optimize and automatically manage the construction process of green buildings in advance, resulting in low construction efficiency and quality of green buildings and low safety of green buildings.

[0007] To achieve the above objectives, on the one hand, the present invention provides a green building design system based on BIM technology, comprising:

[0008] Model building module, used to build BIM models of green buildings;

[0009] A construction simulation module, which is connected to the model building module, comprises a prestress determination unit and a construction simulation unit which are connected to each other; the prestress determination unit is used to calculate the prestress adjustment parameter according to the concrete strength and the three-dimensional volume of the green building to determine the prestress applied to the green building during the construction simulation; the construction simulation unit is used to perform 4D construction simulation using the BIM model;

[0010] A determination module, which is connected to the construction simulation module, is used to determine whether the construction simulation is passed according to the comparison result of the deformation variable generated by the prefabricated component in the construction simulation with the minimum threshold value of the deformation variable, and if not, to reconstruct the BIM model of the green building, or to calculate the deformation variable difference between the deformation variable and the minimum threshold value of the deformation variable to determine the adjustment parameters of the BIM model; the adjustment parameters of the BIM model include concrete strength and cross-sectional size of the prefabricated component;

[0011] A calculation module, which is connected to the determination module and the model construction module respectively, is used to calculate the strength grade according to the deformation difference to determine the parameters to redetermine the concrete strength, and to calculate the cross-sectional size according to the deformation difference to determine the parameters to redetermine the cross-sectional size of the prefabricated component, and send the calculation results to the model construction module to update and optimize the BIM model.

[0012] Furthermore, the prestress determination unit calculates the prestress adjustment parameter according to the concrete strength and the three-dimensional volume of the green building when performing construction simulation, and sets

[0013]

[0014] Among them, X is the prestressing adjustment parameter, Q is the concrete strength, Q0 is the preset minimum threshold of concrete strength, V is the three-dimensional volume of the green building, and V0 is the preset comparison volume.

[0015] Furthermore, a prestress comparison parameter is provided in the prestress determination unit, and the prestress determination unit determines the prestress applied to the green building during the construction simulation according to the comparison result between the prestress adjustment parameter and the prestress comparison parameter.

[0016] Furthermore, the determination module obtains the deformation amount of the prefabricated component when the corresponding prestress is applied, and determines whether the construction simulation is passed according to the deformation amount.

[0017] Furthermore, a minimum threshold value and a maximum threshold value of the deformation variable are provided in the judgment module. If the deformation variable is less than or equal to the minimum threshold value of the deformation variable, the construction simulation is judged to be passed; if the deformation variable is greater than or equal to the maximum threshold value of the deformation variable, the construction simulation is judged to have failed, and the BIM model of the green building is reconstructed.

[0018] Further, if the deformation amount is greater than the minimum deformation amount threshold and less than the maximum deformation amount threshold, the determination module calculates the deformation amount difference between the deformation amount and the minimum deformation amount threshold, and determines the adjustment parameter of the BIM model according to the deformation amount difference;

[0019] The adjustment parameters of the BIM model include concrete strength and cross-sectional dimensions of prefabricated components.

[0020] Further, when the determination module determines that the adjustment parameter of the BIM model is the concrete strength, the calculation module calculates the strength grade determination parameter to redetermine the concrete strength;

[0021] The calculation module calculates the intensity level determination parameter according to the following formula and sets:

[0022]

[0023] Among them, F is the strength level determination parameter, ΔB is the deformation difference, and ΔB0 is the preset deformation difference comparison value.

[0024] Furthermore, the calculation module redetermines the concrete strength according to the strength grade determination parameter, and sets the redetermined concrete strength to be Q1=Q×F.

[0025] Further, when the determination module determines that the adjustment parameter of the BIM model is the cross-sectional size of the prefabricated component, the calculation module calculates the cross-sectional size determination parameter to redetermine the cross-sectional size of the prefabricated component;

[0026] The calculation module calculates the cross-sectional dimensions and determines the parameters according to the following formula and sets:

[0027]

[0028] Among them, K is the parameter for determining the cross-sectional size, ΔB is the deformation difference, ΔB0 is the preset deformation difference comparison value, and λ is a constant;

[0029] The calculation module redetermines the cross-sectional size of the prefabricated component according to the cross-sectional size determination parameter, and sets the redetermined cross-sectional size of the prefabricated component to S1=S×K, where S is the cross-sectional size of the prefabricated component set in the BIM model before adjustment.

[0030] On the other hand, the present invention also provides a green building design method based on BIM technology, comprising:

[0031] Build the BIM model of green buildings through the model building module;

[0032] The construction simulation unit is used to perform 4D construction simulation using the BIM model, and during the construction simulation, the prestress determination unit calculates the prestress adjustment parameters to determine the prestress applied to the green building during the construction simulation;

[0033] The determination module determines whether the construction simulation is passed or not according to the deformation amount of the prefabricated components in the construction simulation, or determines the adjustment parameters of the BIM model;

[0034] When the adjustment parameters of the BIM model are determined, the calculation module calculates the adjustment parameters corresponding to the adjustment parameters of the BIM model to adjust the adjustment parameters of the BIM model to corresponding values, and sends the adjustment results to the model construction module to update and optimize the BIM model.

[0035] Compared with the existing technology, the beneficial effects of the present invention are that the present invention realizes the simulation, optimization and automated management of the green building construction process through BIM technology, thereby improving the construction efficiency and quality; utilizes parametric modeling technology to reduce the design error rate and save the designer's time and energy; realizes the visualization, parameterization and coordination of the green building construction process, thereby improving the stability and safety of the construction process; reduces the construction cost and improves the economic benefit.

[0036] Furthermore, the present invention introduces a prestress adjustment parameter, which is a representative parameter of the prestress level applied to the green building during construction simulation. The prestress level applied to the green building is related to the concrete strength used in the prefabricated components and the three-dimensional volume of the green building. By calculating the prestress adjustment parameter, the present invention can more accurately apply prestress that conforms to the actual situation to the green building during construction simulation, thereby improving the quality and safety of the green building.

[0037] Furthermore, the present invention sets a first prestress comparison parameter and a second prestress comparison parameter to determine the value range of the prestress adjustment parameter, thereby determining the prestress applied to the green building during the construction simulation when the prestress adjustment parameter is in different value ranges. During the construction simulation, the prestress that conforms to the actual situation can be more accurately applied to the green building, further improving the quality and safety of the green building.

[0038] Furthermore, the present invention presets a minimum threshold value of the deformation variable and a maximum threshold value of the deformation variable to determine whether the construction simulation is passed, thereby further improving the quality and safety of green buildings.

[0039] Furthermore, the present invention determines the size of the deformation generated by the prefabricated component by calculating the deformation difference, and determines the adjustment parameters of the BIM model according to the comparison result of the deformation difference and the deformation difference comparison value by presetting the deformation difference comparison value. When the deformation difference is less than the deformation difference comparison value, the deformation generated by the prefabricated component is relatively small. By increasing the concrete strength, the deformation of the prefabricated component can be reduced, so that the green building meets the expected standards. When the deformation difference is greater than or equal to the deformation difference comparison value, the deformation generated by the prefabricated component is relatively large. It is necessary to increase the cross-sectional size of the prefabricated component to increase the overall strength of the green building, thereby avoiding the safety hazards of the green building and improving the construction efficiency and quality.

[0040] Furthermore, the present invention calculates a strength grade determination parameter based on the deformation difference. The strength grade determination parameter is a representative parameter of the concrete strength adjustment amount, which is used to characterize the size of the concrete strength adjustment amount. By calculating the strength grade determination parameter, the concrete strength can be accurately determined, and digital production information of green building components is generated according to the BIM model to realize the automated production of components. Through the above technical solution, the quality and safety of green buildings are further improved.

[0041] Furthermore, the present invention calculates a cross-sectional dimension determination parameter based on the deformation difference. The cross-sectional dimension determination parameter is a representative parameter of the cross-sectional dimension adjustment amount, which is used to characterize the size of the cross-sectional dimension adjustment amount. By calculating the cross-sectional dimension determination parameter, the cross-sectional dimension of the prefabricated component can be accurately determined, and digital production information of the green building component is generated according to the BIM model to realize the automated production of the component. Through the above technical solution, the quality and safety of green buildings are further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A structural diagram of a green building design system based on BIM technology according to an embodiment of the present invention;

[0043] Figure 2 It is a structural block diagram of a construction simulation module in a green building design system based on BIM technology according to an embodiment of the present invention;

[0044] Figure 3 A further structural block diagram of a green building design system based on BIM technology according to an embodiment of the present invention;

[0045] Figure 4 The present invention provides a flow chart of a green building design method based on BIM technology. DETAILED DESCRIPTION

[0046] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0047] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0048] See also Figures 1 to 3 As shown, the green building design system based on BIM technology of the present invention includes:

[0049] Model building module, used to build BIM models of green buildings;

[0050] A construction simulation module, which is connected to the model building module, comprises a prestress determination unit and a construction simulation unit which are connected to each other; the prestress determination unit is used to calculate the prestress adjustment parameter according to the concrete strength and the three-dimensional volume of the green building to determine the prestress applied to the green building during the construction simulation; the construction simulation unit is used to perform 4D construction simulation using the BIM model;

[0051] A determination module, which is connected to the construction simulation module, is used to determine whether the construction simulation is passed according to the comparison result of the deformation variable generated by the prefabricated component in the construction simulation with the minimum threshold value of the deformation variable, and if not, to reconstruct the BIM model of the green building, or to calculate the deformation variable difference between the deformation variable and the minimum threshold value of the deformation variable to determine the adjustment parameters of the BIM model; the adjustment parameters of the BIM model include concrete strength and cross-sectional size of the prefabricated component;

[0052] A calculation module, which is connected to the determination module and the model construction module respectively, is used to calculate the strength grade according to the deformation difference to determine the parameters to redetermine the concrete strength, and to calculate the cross-sectional size according to the deformation difference to determine the parameters to redetermine the cross-sectional size of the prefabricated component, and send the calculation results to the model construction module to update and optimize the BIM model.

[0053] In this embodiment, the BIM model can be used to perform 4D construction simulation (3D model + time dimension) through construction simulation software such as Navisworks, Synchro, etc., and the construction progress, resource scheduling, site layout and critical path can be predicted through 4D construction simulation.

[0054] In this embodiment, the model building module updates and optimizes the BIM model in real time according to the construction simulation data.

[0055] In this embodiment, the model contains rich attribute information, such as material type, size, weight, manufacturer information, installation sequence, and maintenance requirements, to ensure the integrity and consistency of the data.

[0056] The present invention realizes the simulation, optimization and automatic management of the green building construction process through BIM technology, thereby improving the construction efficiency and quality; utilizes parametric modeling technology to reduce the design error rate and save the designer's time and energy; realizes the visualization, parameterization and coordination of the green building construction process, thereby improving the stability and safety of the construction process; reduces the construction cost and improves the economic benefit.

[0057] Specifically, the prestress determination unit calculates the prestress adjustment parameter according to the concrete strength and the three-dimensional volume of the green building when performing construction simulation, and sets

[0058]

[0059] Among them, X is the prestressing adjustment parameter, Q is the concrete strength, Q0 is the preset minimum threshold of concrete strength, V is the three-dimensional volume of the green building, and V0 is the preset comparison volume.

[0060] In this embodiment, the preset minimum concrete strength threshold Q0 is preferably set to 75% of the designed concrete strength grade value.

[0061] In this embodiment, when determining the preset comparison volume V0, the volumes of a number of prefabricated green buildings whose construction quality meets the standards are selected to construct a volume data set. By constructing a normal distribution curve, the volume corresponding to the midpoint of the 95% confidence interval is used as the preset comparison volume V0.

[0062] The present invention introduces a prestress regulating parameter, which is a representative parameter of the prestress level applied to the green building during construction simulation. The prestress level applied to the green building is related to the concrete strength used for prefabricated components and the three-dimensional volume of the green building. The present invention can more accurately apply prestress that conforms to the actual situation to the green building during construction simulation by calculating the prestress regulating parameter, thereby improving the quality and safety of the green building.

[0063] Specifically, a prestress comparison parameter is provided in the prestress determination unit, and the prestress determination unit determines the prestress applied to the green building during the construction simulation according to the comparison result between the prestress adjustment parameter and the prestress comparison parameter.

[0064] Specifically, the prestress determination unit is preset with a first prestress comparison parameter and a second prestress comparison parameter, the first prestress comparison parameter is less than the second prestress comparison parameter, and the prestress determination unit compares the prestress adjustment parameter X with the first prestress comparison parameter X1 and the second prestress comparison parameter X2 respectively to determine the prestress applied to the green building during the construction simulation, wherein:

[0065] If the prestress adjustment parameter X is less than the first prestress comparison parameter X1, the prestress D applied to the green building during the construction simulation is set to be X / X1×D0;

[0066] If the prestress adjustment parameter X is greater than or equal to the first prestress comparison parameter X1 and less than the second prestress comparison parameter X2, the prestress D applied to the green building during the construction simulation is set to be 2X / (X1+X2)×D0;

[0067] If the prestress adjustment parameter X is greater than or equal to the second prestress comparison parameter X2, the prestress D applied to the green building during the construction simulation is set to be X / X2×D0;

[0068] Among them, D0 is the prestress applied to the green building during the initial preset construction simulation, and D0 can be set and adjusted according to actual needs.

[0069] The present invention sets a first prestress comparison parameter and a second prestress comparison parameter to determine the value range of the prestress adjustment parameter, thereby determining the prestress applied to the green building during construction simulation when the prestress adjustment parameter is in different value ranges. During construction simulation, the prestress that conforms to the actual situation can be more accurately applied to the green building, further improving the quality and safety of the green building.

[0070] Specifically, when determining the first prestress comparison parameter and the second prestress comparison parameter of the present embodiment, at least 200 construction data of prefabricated green building construction quality that meet the standards are selected, and the corresponding 200 prestress adjustment parameters are calculated to construct a prestress adjustment parameter data set. The prestress adjustment parameter is used as a random variable, and the random variable obeys a probability density function. Then, a normal distribution curve can be constructed according to the probability density function, and the 95% confidence interval of the normal distribution curve is determined. The prestress adjustment parameter corresponding to the midpoint of the 95% confidence interval is determined as the first prestress comparison parameter, and the prestress adjustment parameter corresponding to the lower limit of the 95% confidence interval is determined as the second prestress comparison parameter. Constructing a probability density function and constructing a normal distribution curve based on the probability density function are commonly used technical means in statistics, which will not be repeated here.

[0071] Specifically, the determination module obtains the deformation amount of the prefabricated component when the corresponding prestress is applied, and determines whether the construction simulation is passed according to the deformation amount.

[0072] Specifically, a minimum threshold value of the deformation variable and a maximum threshold value of the deformation variable are provided in the judgment module. If the deformation variable is less than or equal to the minimum threshold value of the deformation variable, the construction simulation is judged to be passed; if the deformation variable is greater than or equal to the maximum threshold value of the deformation variable, the construction simulation is judged to have failed, and the BIM model of the green building is reconstructed.

[0073] The present invention presets a minimum threshold value of the deformation variable and a maximum threshold value of the deformation variable to determine whether the construction simulation is passed, thereby further improving the quality and safety of green buildings.

[0074] In this embodiment, the minimum threshold value of the deformation variable and the maximum threshold value of the deformation variable are set according to the actual requirements for green buildings.

[0075] Specifically, if the deformation amount is greater than the minimum deformation amount threshold and less than the maximum deformation amount threshold, the determination module calculates the deformation amount difference between the deformation amount and the minimum deformation amount threshold, and determines the adjustment parameter of the BIM model according to the deformation amount difference;

[0076] The adjustment parameters of the BIM model include concrete strength and cross-sectional dimensions of prefabricated components.

[0077] Specifically, a deformation difference comparison value is provided in the determination module, and the determination module compares the deformation difference value with the deformation difference comparison value to determine the adjustment parameters of the BIM model;

[0078] Wherein, if the deformation variable difference is less than the deformation variable difference comparison value, the determination module determines that the concrete strength needs to be adjusted;

[0079] If the deformation amount difference is greater than or equal to the deformation amount difference comparison value, the determination module determines that the cross-sectional size of the prefabricated component needs to be adjusted.

[0080] In this embodiment, when setting the deformation difference comparison value, the average of at least 200 deformation difference values ​​is calculated, and the average is used as the deformation difference comparison value. It can be understood by those skilled in the art that the deformation difference comparison value can also be set according to actual needs.

[0081] The present invention determines the size of the deformation generated by the prefabricated component by calculating the deformation difference, and determines the adjustment parameters of the BIM model according to the comparison result of the deformation difference and the deformation difference comparison value by presetting the deformation difference comparison value. When the deformation difference is less than the deformation difference comparison value, the deformation generated by the prefabricated component is relatively small. By increasing the concrete strength, the deformation of the prefabricated component can be reduced, so that the green building meets the expected standards. When the deformation difference is greater than or equal to the deformation difference comparison value, the deformation generated by the prefabricated component is relatively large. It is necessary to increase the cross-sectional size of the prefabricated component to increase the overall strength of the green building, thereby avoiding the safety hazards of the green building and improving the construction efficiency and quality.

[0082] It can be understood by those skilled in the art that when the cross-sectional size of the prefabricated component is increased, the cross-sectional size of each prefabricated component is increased in the same proportion.

[0083] Specifically, when the determination module determines that the adjustment parameter of the BIM model is the concrete strength, the calculation module calculates the strength grade determination parameter to re-determine the concrete strength;

[0084] The calculation module calculates the intensity level determination parameter according to the following formula and sets:

[0085]

[0086] Among them, F is the strength level determination parameter, ΔB is the deformation difference, and ΔB0 is the preset deformation difference comparison value.

[0087] The present invention calculates a strength grade determination parameter based on the difference in deformation. The strength grade determination parameter is a representative parameter of the concrete strength adjustment amount, which is used to characterize the size of the concrete strength adjustment amount. By calculating the strength grade determination parameter, the concrete strength can be accurately determined, and digital production information of green building components is generated according to the BIM model to realize the automated production of components. Through the above technical solution, the quality and safety of green buildings are further improved.

[0088] Specifically, the calculation module redetermines the concrete strength according to the strength grade determination parameter, and sets the redetermined concrete strength to be Q1=Q×F.

[0089] Those skilled in the art can understand that, in this embodiment, the concrete strength refers to the strength of the concrete used to prepare the prefabricated components, and the concrete strength refers to the percentage of the concrete design strength grade value.

[0090] Specifically, when the determination module determines that the adjustment parameter of the BIM model is the cross-sectional size of the prefabricated component, the calculation module calculates the cross-sectional size determination parameter to re-determine the cross-sectional size of the prefabricated component;

[0091] The calculation module calculates the cross-sectional dimensions and determines the parameters according to the following formula and sets:

[0092]

[0093] Among them, K is the parameter for determining the cross-sectional size, ΔB is the deformation difference, ΔB0 is the preset deformation difference comparison value, λ is a constant, 1<λ<2;

[0094] The calculation module redetermines the cross-sectional size of the prefabricated component according to the cross-sectional size determination parameter, and sets the redetermined cross-sectional size of the prefabricated component to S1=S×K, where S is the cross-sectional size of the prefabricated component set in the BIM model before adjustment.

[0095] The present invention calculates a cross-sectional dimension determination parameter based on the deformation variable difference. The cross-sectional dimension determination parameter is a representative parameter of the cross-sectional dimension adjustment amount, which is used to characterize the size of the cross-sectional dimension adjustment amount. By calculating the cross-sectional dimension determination parameter, the cross-sectional dimension of the prefabricated component can be accurately determined, and digital production information of the green building component is generated according to the BIM model to realize the automated production of the component. Through the above technical solution, the quality and safety of green buildings are further improved.

[0096] See also Figure 4 As shown, the green building design method based on BIM technology of the present invention includes:

[0097] Step S1, constructing a BIM model of a green building through a model construction module;

[0098] Step S2, the construction simulation unit is used to perform 4D construction simulation using the BIM model, and during the construction simulation, the prestress determination unit calculates the prestress adjustment parameter to determine the prestress applied to the green building during the construction simulation;

[0099] Step S3, the determination module determines whether the construction simulation is passed according to the deformation amount of the prefabricated component generated in the construction simulation, or determines the adjustment parameters of the BIM model;

[0100] Step S4, when the adjustment parameters of the BIM model are determined, the calculation module calculates the adjustment parameters corresponding to the adjustment parameters of the BIM model to adjust the adjustment parameters of the BIM model to corresponding values, and sends the adjustment results to the model construction module to update and optimize the BIM model.

[0101] The embodiment of the present invention is a green building design system based on BIM technology. Before construction, the system identifies potential design conflicts, process difficulties and material compatibility issues through model simulation and collision detection, optimizes the design and construction plans in advance, and reduces quality problems caused by design errors.

[0102] In the embodiment of the present invention, the green building design system based on BIM technology can also be applied to the construction process. In the traditional prefabricated component installation process, the position, verticality, elevation, etc. of the components are all measured manually, with large errors, and it is difficult to meet the accuracy requirements of engineering design. However, through intelligent rapid positioning and installation technology, during the installation process, sensors are used to collect data such as the position, verticality, elevation, etc. of the components, and the pre-adjustment values ​​are automatically calculated to help operators make adjustments, which greatly speeds up the installation of components and improves installation accuracy. By utilizing the Internet of Things and sensor integration technology, real-time data on the construction site, such as environmental conditions, equipment status, worker location, etc., is collected through Internet of Things devices and associated with the BIM model to achieve dynamic monitoring and feedback of the construction process.

[0103] In the embodiment of the present invention, the green building design system based on BIM technology can also realize construction progress and quality management, monitor the construction progress in real time through the Internet of Things data, compare and analyze with the plan, make timely adjustments, use BIM to perform quality inspections and record problems, and ensure the quality of the project.

[0104] In the embodiment of the present invention, the green building design system based on BIM technology can also integrate sensor data, continuously monitor the health status of green building structures, and support preventive maintenance and performance optimization decisions.

[0105] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0106] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A green building design system based on BIM technology, characterized in that: include: Model building module, used to build BIM models of green buildings; A construction simulation module, which is connected to the model building module, and includes a prestress determination unit and a construction simulation unit that are connected to each other; the prestress determination unit is used to calculate the prestress adjustment parameter according to the concrete strength and the three-dimensional volume of the green building, and determine the prestress applied to the green building during the construction simulation according to the comparison result between the prestress comparison parameter set in the prestress determination unit and the prestress adjustment parameter; the construction simulation unit is used to perform 4D construction simulation using the BIM model; A determination module, which is connected to the construction simulation module, is used to determine whether the construction simulation is passed according to the comparison result of the deformation variable generated by the prefabricated component in the construction simulation with the minimum threshold value of the deformation variable, and if not, to reconstruct the BIM model of the green building, or to calculate the deformation variable difference between the deformation variable and the minimum threshold value of the deformation variable to determine the adjustment parameters of the BIM model; the adjustment parameters of the BIM model include concrete strength and cross-sectional size of the prefabricated component; a calculation module, which is connected to the determination module and the model construction module respectively, and is used to calculate the strength grade according to the deformation difference to determine the parameter to redetermine the concrete strength, and to calculate the cross-sectional size according to the deformation difference to determine the parameter to redetermine the cross-sectional size of the prefabricated component, and send the calculation result to the model construction module to update and optimize the BIM model; The prestress determination unit calculates the prestress adjustment parameter according to the concrete strength and the three-dimensional volume of the green building when performing construction simulation, and sets ， Among them, X is the prestressing adjustment parameter, Q is the concrete strength, Q0 is the preset minimum threshold of concrete strength, V is the three-dimensional volume of the green building, and V0 is the preset comparison volume.

2. The green building design system based on BIM technology according to claim 1 is characterized in that: The determination module obtains the deformation amount of the prefabricated component when the corresponding prestress is applied, and determines whether the construction simulation is passed according to the deformation amount.

3. The green building design system based on BIM technology according to claim 2 is characterized in that: The judgment module is provided with a minimum threshold value of the deformation variable and a maximum threshold value of the deformation variable. If the deformation variable is less than or equal to the minimum threshold value of the deformation variable, the construction simulation is judged to be passed; if the deformation variable is greater than or equal to the maximum threshold value of the deformation variable, the construction simulation is judged to have failed, and the BIM model of the green building is reconstructed.

4. The green building design system based on BIM technology according to claim 3 is characterized in that: The determination module determines that the construction simulation fails when the deformation variable is greater than the minimum deformation variable threshold and less than the maximum deformation variable threshold, calculates the deformation variable difference between the deformation variable and the minimum deformation variable threshold, and determines the adjustment parameters of the BIM model according to the deformation variable difference; The adjustment parameters of the BIM model include concrete strength and cross-sectional dimensions of prefabricated components.

5. The green building design system based on BIM technology according to claim 4 is characterized in that: When the determination module determines that the adjustment parameter of the BIM model is the concrete strength, the calculation module calculates the strength grade determination parameter to redetermine the concrete strength; The calculation module calculates the intensity level determination parameter according to the following formula and sets: ， Among them, F is the strength level determination parameter, ΔB is the deformation difference, and ΔB0 is the preset deformation difference comparison value.

6. The green building design system based on BIM technology according to claim 5 is characterized in that: The calculation module redetermines the concrete strength according to the strength grade determination parameter, and sets the redetermined concrete strength to be Q1=Q×F.

7. The green building design system based on BIM technology according to claim 6 is characterized in that: When the determination module determines that the adjustment parameter of the BIM model is the cross-sectional size of the prefabricated component, the calculation module calculates the cross-sectional size determination parameter to redetermine the cross-sectional size of the prefabricated component; The calculation module calculates the cross-sectional dimensions and determines the parameters according to the following formula and sets: ， Among them, K is the parameter for determining the cross-sectional size, ΔB is the deformation difference, ΔB0 is the preset deformation difference comparison value, and λ is a constant; The calculation module redetermines the cross-sectional size of the prefabricated component according to the cross-sectional size determination parameter, and sets the redetermined cross-sectional size of the prefabricated component to S1=S×K, where S is the cross-sectional size of the prefabricated component set in the BIM model before adjustment.

8. A green building design method using the green building design system based on BIM technology according to any one of claims 1 to 7, characterized in that: include: Build the BIM model of green buildings through the model building module; The construction simulation unit is used to perform 4D construction simulation using the BIM model, and during the construction simulation, the prestress determination unit calculates the prestress adjustment parameters to determine the prestress applied to the green building during the construction simulation; The determination module determines whether the construction simulation is passed or not according to the deformation amount of the prefabricated components in the construction simulation, or determines the adjustment parameters of the BIM model; When the adjustment parameters of the BIM model are determined, the calculation module calculates the adjustment parameters corresponding to the adjustment parameters of the BIM model to adjust the adjustment parameters of the BIM model to corresponding values, and sends the adjustment results to the model construction module to update and optimize the BIM model.

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