Fabricated building design method and system based on BIM technology

Abstract

The invention discloses an assembly type building design method and system based on a BIM technology, and relates to the technical field of BIM design. When the system runs, an assembly part information group is acquired through an assembly data acquisition module, information of a use scene position is acquired through an assembly use module, and a scene use influence factor Yxyz is acquired after processing and analysis; an assembly building three-dimensional stress analysis model is established for the assembly part information group through an assembly model module, marking and model training are carried out, a first data set and a second data set are obtained, fitting with a scene use influence factor Yxyz is carried out, and an assembly building use evaluation index Pgzs, Pgzs, Pgzs, Pgzs, Pgzs, Pgzs, Pgzs, Pgzs, Pgzs, Pgzs and matching is carried out through an assembly building use analysis evaluation threshold P preset by the evaluation module, an assembly building design execution evaluation scheme is obtained, specific notification and prompt are carried out according to the content of the scheme, model training and stress analysis are carried out in combination with scene use information, and the structural stability and safety of the building are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of BIM design, and in particular to a method and system for designing prefabricated buildings based on BIM technology. Background Art

[0002] There are many challenges in the design of traditional prefabricated buildings, including lack of structural stability, incomplete risk management and increased difficulty in cost control. Due to the flexibility of prefabricated buildings, they are often assembled and integrated without a comprehensive assessment of the stability of the building structure and effective identification of the stress conditions between each prefabricated building and the overall stress distribution, which increases the risk of safety hazards.

[0003] Specifically, traditional prefabricated building designs often lack comprehensive stress analysis of assembled components, and often only focus on the strength and stability of local structures, ignoring the stress conditions of the overall structure. This may result in the neglect of the stress conditions of certain key parts during the assembly and integration process, including node connections, wall bearings, etc., thereby increasing the instability and safety hazards of the structural system. In addition, traditional methods often only rely on simple static principles for stress analysis, and cannot fully consider the impact of external factors such as wind speed changes, dynamic loads, temperature changes and geological factors on the building structure, making the stress analysis results lack comprehensiveness and accuracy. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a method and system for designing prefabricated buildings based on BIM technology, which solves the problems mentioned in the background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an assembled building design system based on BIM technology, including an assembly data acquisition module, an assembly use module, an assembly model module and an evaluation module;

[0006] The assembly data acquisition module acquires information on components of the assembled building according to the architectural design drawings, including size information and structural information of the assembled building, to form an assembly component information group;

[0007] The assembly use module obtains environmental factors and geological factors according to the location of the assembly building use scene, forms a use scene information group, and after preprocessing and conversion, analyzes and obtains: scene use influencing factor Yxyz;

[0008] The assembly model module constructs a three-dimensional force analysis model of an assembled building from an assembly component information group by using BIM technology, marks the three-dimensional force analysis model of the assembled building, including size marking, structure marking and weight marking, and then inputs the use scenario information group into the three-dimensional force analysis model of the assembled building for model training and force analysis, obtains force offset information of the three-dimensional force analysis model of the assembled building to form a first data set, obtains overall force fluctuation information of the three-dimensional force analysis model of the assembled building after assembly to form a second data set, and then processes and fits the first data set, the second data set and the scene use influencing factor Yxyz to obtain: an assembled building use evaluation index Pgzs;

[0009] The evaluation module matches the preset assembly building use analysis evaluation threshold P with the assembly building use evaluation index Pgzs, obtains the assembly building design execution evaluation plan, and performs specific execution according to the content of the assembly building design execution evaluation plan, including notification and prompting.

[0010] Preferably, the assembly data acquisition module includes an identification unit;

[0011] The identification unit identifies information of several assembled building components from the architectural design drawings and extracts their size information, including using image processing technology or CAD software to identify the assembled building components in the architectural design drawings, extracting size information from the identified components, including length, width and height, and recording it in digital form, simultaneously identifying and analyzing the architectural design drawings, extracting structural features of several assembled building component information, including materials, structures and connection methods, extracting structural information from the identified components and recording it, and organizing the extracted size information and structural information into a structured data format to form an assembled component information group.

[0012] Preferably, the assembly and use module includes an environment unit, a geological unit and a scene impact unit;

[0013] The environmental unit obtains the location information of the use position of the assembled building after the current design is assembled, and uses the Internet crawler technology to obtain the environmental information of the location according to the location information, including environmental wind speed, environmental humidity, environmental temperature, rainfall information and related environmental information of the location, and simultaneously intercepts and normalizes the historical environmental information within a fixed period of the environmental information of the location to obtain: the average environmental wind speed Fsz, the average environmental humidity Sdz, the average environmental temperature Wdz, the average rainfall Jyl and the average snowfall Jxl, which constitute the environmental climate impact information group;

[0014] The geological unit uses the use positioning information of the assembled building after the current design is formed, and matches the use positioning information with the geological survey report or geological exploration report issued by the relevant departments, to obtain the relevant geological report information of the positioning area, including geological structure, geological landform, stratigraphic conditions, seismic activity and related geological information, and obtains the geological fluctuations occurring in the fixed period of the current positioning area, and obtains: the earthquake number value Dzz, the number of winds of level 8 and above Dfz, the number of mountain torrents Shz, the number of mountain fires Hsz and the number of floods Hlz, to form a geological fluctuation impact information group;

[0015] The scenario impact unit performs fitting analysis based on the environmental climate impact information group and the geological fluctuation impact information group to obtain the scenario use impact factor Yxyz.

[0016] Preferably, the scenario usage impact factor Yxyz is calculated and obtained by the following formula:

[0017]

[0018]

[0019]

[0020] Wherein, Hjyz represents the environmental climate impact factor, Fsz represents the average environmental wind speed, Sdz represents the average environmental humidity, Wdz represents the average environmental temperature, Jyl represents the average rainfall, and Jxl represents the average snowfall; Dzyz represents the geological fluctuation impact factor, Dzz represents the earthquake number value, Dfz represents the number of level 8 gale and above, Shz represents the number of mountain torrents, Hsz represents the number of wildfires, and Hlz represents the number of floods; x1 and x2 represent the proportional coefficients of the environmental climate impact factor Hjyz and the geological fluctuation impact factor Dzyz, respectively. The value of the scene use impact factor Yxyz is obtained by associating the environmental climate impact factor Hjyz with the geological fluctuation impact factor Dzyz;

[0021] Among them, 0.23≤x1≤0.52, 0.21≤x2≤0.48, and x1+x2≤1.0, and K represents the first correction constant.

[0022] Preferably, the assembly model module includes a modeling unit, a normalization unit and a fitting unit;

[0023] The modeling unit constructs a three-dimensional force analysis model of the assembled building based on the assembly component information group by using BIM technology, marks the three-dimensional force analysis model of the assembled building, including size marking, structure marking and weight marking, and then inputs the use scenario information group into the three-dimensional force analysis model of the assembled building for model training and force analysis.

[0024] The normalization unit obtains force offset information of the three-dimensional force analysis model of the assembled building by training and force analysis of the trained three-dimensional force analysis model of the assembled building, including deformation information of the assembled building contact surface, displacement information of the assembled building, fluctuation information of the connection tightness of the assembled building, and force position offset information of the assembled building, and forms a first data set after normalization processing, and obtains overall force fluctuation information of the three-dimensional force analysis model of the assembled building after assembly, including overall force offset information of the assembled building, stress change information of the connection point of the assembled building, offset angle of the assembled building, and deformation information of the assembled building, and forms a second data set after normalization processing;

[0025] The first data set includes: a building contact surface deformation quantity value Xbsl, a building offset average value Pypj, a building connection tightness fluctuation value Jmbd and a building force position offset value Slpy;

[0026] The second data set includes: the force offset position quantity value Slsl, the overall offset angle value Pyjd, the stress fluctuation connection quantity value Ylsl and the building structure deformation position quantity value Xbsl;

[0027] The fitting unit normalizes the first data set and the second data set and then processes them to obtain: the assembled building force fluctuation coefficient Slxs and the building overall displacement coefficient Ztxs, and then fits them with the scene use influence factor Yxyz to obtain: the assembled building use evaluation index Pgzs;

[0028] The assembly building utilization evaluation index Pgzs is calculated by the following formula:

[0029]

[0030] Where, Pgzs represents the use evaluation index of assembled building, Slxs represents the force fluctuation coefficient of assembled building, Ztxs represents the overall displacement coefficient of building, Yxyz represents the scene use impact factor, y1, y2 and y3 represent the proportional coefficients of the force fluctuation coefficient of assembled building Slxs, the overall displacement coefficient of building Ztxs and the scene use impact factor Yxyz respectively;

[0031] Among them, 0.19≤y1≤0.31, 0.23≤y2≤0.48, 0.12≤y3≤0.21, and y1+y2+y3≤1.0, and R represents the second correction constant.

[0032] Preferably, the force fluctuation coefficient Slxs of the assembled building is calculated by the following formula:

[0033]

[0034] Wherein, Slxs represents the force fluctuation coefficient of the assembled building, Xbsl represents the deformation value of the building contact surface, Pypj represents the average value of the building offset, Jmbd represents the fluctuation value of the building connection tightness, Slpy represents the offset value of the building force position, s1, s2, s3 and s4 represent the proportional coefficients of the deformation value Xbsl of the building contact surface, the average value of the building offset Pypj, the fluctuation value Jmbd of the building connection tightness and the offset value Slpy of the building force position respectively;

[0035] Among them, 0.13≤s1≤0.22, 0.12≤s2≤0.27, 0.16≤s3≤0.26, 0.14≤s4≤0.25, and s1+s2+s3+s4≤1.0, and Z represents the third correction constant.

[0036] Preferably, the overall building offset coefficient Ztxs is calculated by the following formula:

[0037]

[0038] Wherein, Ztxs represents the overall offset coefficient of the building, Slsl represents the quantity value of the force offset position, Pyjd represents the overall offset angle value, Ylsl represents the quantity value of the stress fluctuation connection, Xbsl represents the quantity value of the building structure deformation position, z1, z2, z3 and z4 represent the proportional coefficients of the force offset position quantity value Slsl, the overall offset angle value Pyjd, the stress fluctuation connection quantity value Ylsl and the building structure deformation position quantity value Xbsl respectively;

[0039] Among them, 0.16≤z1≤0.24, 0.13≤z2≤0.22, 0.15≤z3≤0.28, 0.15≤z4≤0.26, and z1+z2+z3+z4≤1.0, and V represents the fourth correction constant.

[0040] Preferably, the evaluation module includes a matching unit and an execution unit;

[0041] The matching unit matches the preset relevant information with the required comparison value, including matching the preset prefabricated building use analysis evaluation threshold P with the prefabricated building use evaluation index Pgzs to obtain the prefabricated building design execution evaluation plan;

[0042] The execution unit performs specific execution according to the content of the prefabricated building design execution evaluation plan, including notifications and prompts. The notifications include text message notifications, preset call voice notifications and email notifications to relevant prefabricated building design reviewers and design plan responsible persons. The prompts include interactive page pop-up prompts and red mark prompts for the prefabricated building three-dimensional force analysis model.

[0043] Preferably, the assembly building design execution evaluation plan is obtained by the following matching method:

[0044] The prefabricated building use evaluation index Pgzs < the prefabricated building use analysis evaluation threshold P, and the qualified result of the prefabricated building design execution evaluation is obtained;

[0045] The assembled building use evaluation index Pgzs≥assembly building use analysis evaluation threshold P, obtain the results of unqualified items in the assembled building design execution evaluation, the unqualified items include building node connection items, building connection contact surface items and building wall bearing items, among which the specific influencing factors included in the building node connection items, building connection contact surface items and building wall bearing items include: building contact surface deformation quantity value, building offset average value Pypj, building connection tightness fluctuation value Jmbd, building force position offset value Slpy, force offset position quantity value Slsl, overall offset angle value Pyjd, stress fluctuation connection quantity value Ylsl and building structure deformation position quantity value Xbsl, execute relevant preset notifications and prompts, when the assembled building use evaluation index Pgzs≥twice the assembled building use analysis evaluation threshold P, execute the preset assembled building design early warning notification, notify the relevant design reviewers and design responsible personnel to handle it, and pop-up prompts and red mark prompts of the assembled building three-dimensional force analysis model are displayed on the interactive page to highlight areas that may need attention and adjustment. This visual marking prompt can intuitively help design reviewers and design responsible personnel quickly identify potential problems and take appropriate measures to adjust and improve them.

[0046] A prefabricated building design method based on BIM technology includes the following steps:

[0047] Step 1: The assembly data acquisition module obtains information on the components of the assembled building according to the building design drawings, including the size information and structure information of the assembled building, to form an assembly component information group;

[0048] Step 2: The assembly use module obtains environmental factors and geological factors according to the location of the assembly building use scene, forms a use scene information group, and after preprocessing and conversion, analyzes and obtains: scene use influencing factor Yxyz;

[0049] Step 3: The assembly model module constructs a three-dimensional force analysis model of the assembled building for the assembly component information group by using BIM technology, marks the three-dimensional force analysis model of the assembled building, including size marking, structure marking and weight marking, and then inputs the use scenario information group into the three-dimensional force analysis model of the assembled building for model training and force analysis, obtains the force offset information of the three-dimensional force analysis model of the assembled building to form a first data set, obtains the overall force fluctuation information of the three-dimensional force analysis model of the assembled building after assembly to form a second data set, and then processes and fits the first data set, the second data set and the scene use influencing factor Yxyz to obtain: the assembled building use evaluation index Pgzs;

[0050] Step 4: The evaluation module matches the preset assembly building use analysis evaluation threshold P with the assembly building use evaluation index Pgzs, obtains the assembly building design execution evaluation plan, and performs specific execution according to the content of the assembly building design execution evaluation plan, including notifications and prompts.

[0051] The present invention provides a method and system for designing prefabricated buildings based on BIM technology, which has the following beneficial effects:

[0052] (1) When the system is running, the assembly data acquisition module obtains the assembly component information group, the assembly use module obtains the information of the use scenario location, and obtains the scenario use influencing factor Yxyz after processing and analysis. The assembly model module establishes a three-dimensional force analysis model of the assembly building for the assembly component information group, and performs labeling and model training. The first data set and the second data set are obtained, and are fitted with the scenario use influencing factor Yxyz to obtain: the assembly building use evaluation index Pgzs. The assembly building use analysis evaluation threshold P preset by the evaluation module is matched to obtain the assembly building design execution evaluation plan, and specific notifications and prompts are given according to the content of the plan. The assembly model module based on BIM technology can construct a three-dimensional force analysis model of the assembly building, and conduct model training and force analysis in combination with the scenario use information, so as to optimize the design plan, improve the structural stability and safety of the building, and address the problem of lack of structural stability guarantee.

[0053] (2) By acquiring and processing the environmental climate impact information group and the geological fluctuation impact information group, and obtaining the scenario use impact factor Yxyz through calculation, it is possible to obtain environmental factors and geological factors based on the building use scenario, and conduct a comprehensive analysis, which helps to comprehensively evaluate the stability of the building structure and solve the safety hazard problem caused by the failure to fully consider the use scenario environmental factors in the traditional prefabricated building design.

[0054] (3) By matching the preset prefabricated building use analysis evaluation threshold P with the prefabricated building use evaluation index Pgzs, the prefabricated building design execution evaluation plan can be obtained, which can provide a comprehensive design execution evaluation plan for decision makers, help effectively manage costs, control risks, and solve the problem of increasing difficulty in cost control.

[0055] (4) Through steps 1 to 4, the location of the assembly construction use scene is obtained to obtain the scene information group. After analysis, the scene use influencing factor Yxyz is obtained, and it is fitted with the constructed assembly building three-dimensional force analysis model training analysis structure to obtain the assembly building use evaluation index Pgzs. Then it is matched with the preset assembly building use analysis evaluation threshold P. According to the matching results, the relevant designers and responsible personnel are notified to realize automated data processing and simulation analysis, which greatly improves the efficiency of design and evaluation and saves time and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 This is a flowchart diagram of a prefabricated building design system based on BIM technology in the present invention;

[0057] Figure 2 The present invention is a schematic diagram of the steps of a prefabricated building design method based on BIM technology. DETAILED DESCRIPTION

[0058] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0059] There are many challenges in the design of traditional prefabricated buildings, including lack of structural stability, incomplete risk management and increased difficulty in cost control. Due to the flexibility of prefabricated buildings, they are often assembled and integrated without a comprehensive assessment of the stability of the building structure and effective identification of the stress conditions between each prefabricated building and the overall stress distribution, which increases the risk of safety hazards.

[0060] Specifically, traditional prefabricated building designs often lack comprehensive stress analysis of assembled components, and often only focus on the strength and stability of local structures, ignoring the stress conditions of the overall structure. This may result in the neglect of the stress conditions of certain key parts during the assembly and integration process, including node connections, wall bearings, etc., thereby increasing the instability and safety hazards of the structural system. In addition, traditional methods often only rely on simple static principles for stress analysis, and cannot fully consider the impact of external factors such as wind speed changes, dynamic loads, temperature changes and geological factors on the building structure, making the stress analysis results lack comprehensiveness and accuracy.

[0061] Example 1

[0062] The present invention provides a prefabricated building design system based on BIM technology, please refer to Figure 1 , including assembly data acquisition module, assembly use module, assembly model module and evaluation module;

[0063] The assembly data acquisition module acquires information on components of the assembled building according to the architectural design drawings, including size information and structural information of the assembled building, to form an assembly component information group;

[0064] The assembly use module obtains environmental factors and geological factors according to the location of the assembly building use scene, forms a use scene information group, and after preprocessing and conversion, analyzes and obtains: scene use influencing factor Yxyz;

[0065] The assembly model module constructs a three-dimensional force analysis model of an assembled building from an assembly component information group by using BIM technology, marks the three-dimensional force analysis model of the assembled building, including size marking, structure marking and weight marking, and then inputs the use scenario information group into the three-dimensional force analysis model of the assembled building for model training and force analysis, obtains force offset information of the three-dimensional force analysis model of the assembled building to form a first data set, obtains overall force fluctuation information of the three-dimensional force analysis model of the assembled building after assembly to form a second data set, and then processes and fits the first data set, the second data set and the scene use influencing factor Yxyz to obtain: an assembled building use evaluation index Pgzs;

[0066] The evaluation module matches the preset assembly building use analysis evaluation threshold P with the assembly building use evaluation index Pgzs, obtains the assembly building design execution evaluation plan, and performs specific execution according to the content of the assembly building design execution evaluation plan, including notification and prompting.

[0067] In this embodiment, an assembly component information group is obtained through an assembly data acquisition module, and information on the location of the usage scenario is obtained through an assembly use module. The scenario usage influencing factor Yxyz is obtained after processing and analysis. A three-dimensional force analysis model of an assembled building is established for the assembly component information group through an assembly model module, and marking and model training are performed. A first data set and a second data set are obtained, and fit with the scenario usage influencing factor Yxyz to obtain: an assembled building usage evaluation index Pgzs. The assembled building usage analysis evaluation threshold value P preset by the evaluation module is matched to obtain an assembled building design execution evaluation plan, and specific notifications and prompts are given according to the content of the plan. The assembly model module based on BIM technology can construct a three-dimensional force analysis model of the assembled building, and perform model training and force analysis in combination with the scenario usage information, thereby optimizing the design plan, improving the structural stability and safety of the building, and addressing the problem of lack of structural stability guarantee.

[0068] Example 2

[0069] This embodiment is explained in Example 1, please refer to Figure 1 ,Specifically: the assembly data acquisition module includes an identification unit;

[0070] The identification unit identifies information of several assembled building components from the architectural design drawings and extracts their size information, including using image processing technology or CAD software to identify the assembled building components in the architectural design drawings, extracting size information from the identified components, including length, width and height, and recording it in digital form, simultaneously identifying and analyzing the architectural design drawings, extracting structural features of several assembled building component information, including materials, structures and connection methods, extracting structural information from the identified components and recording it, and organizing the extracted size information and structural information into a structured data format to form an assembled component information group.

[0071] The assembly and use module includes an environment unit, a geological unit and a scene impact unit;

[0072] The environmental unit obtains the location information of the use position of the assembled building after the current design is assembled, and uses the Internet crawler technology to obtain the environmental information of the location according to the location information, including environmental wind speed, environmental humidity, environmental temperature, rainfall information and related environmental information of the location, and simultaneously intercepts and normalizes the historical environmental information within a fixed period of the environmental information of the location to obtain: the average environmental wind speed Fsz, the average environmental humidity Sdz, the average environmental temperature Wdz, the average rainfall Jyl and the average snowfall Jxl, which constitute the environmental climate impact information group;

[0073] The geological unit uses the use positioning information of the assembled building after the current design is formed, and matches the use positioning information with the geological survey report or geological exploration report issued by the relevant departments, to obtain the relevant geological report information of the positioning area, including geological structure, geological landform, stratigraphic conditions, seismic activity and related geological information, and obtains the geological fluctuations occurring in the fixed period of the current positioning area, and obtains: the earthquake number value Dzz, the number of winds of level 8 and above Dfz, the number of mountain torrents Shz, the number of mountain fires Hsz and the number of floods Hlz, to form a geological fluctuation impact information group;

[0074] The scenario impact unit performs fitting analysis based on the environmental climate impact information group and the geological fluctuation impact information group to obtain the scenario use impact factor Yxyz.

[0075] The scenario uses the impact factor Yxyz calculated using the following formula:

[0076]

[0077]

[0078]

[0079] Wherein, Hjyz represents the environmental climate impact factor, Fsz represents the average environmental wind speed, Sdz represents the average environmental humidity, Wdz represents the average environmental temperature, Jyl represents the average rainfall, and Jxl represents the average snowfall; Dzyz represents the geological fluctuation impact factor, Dzz represents the earthquake number value, Dfz represents the number of level 8 gale and above, Shz represents the number of mountain torrents, Hsz represents the number of wildfires, and Hlz represents the number of floods; x1 and x2 represent the proportional coefficients of the environmental climate impact factor Hjyz and the geological fluctuation impact factor Dzyz, respectively. The value of the scene use impact factor Yxyz is obtained by associating the environmental climate impact factor Hjyz with the geological fluctuation impact factor Dzyz;

[0080] Among them, 0.23≤x1≤0.52, 0.21≤x2≤0.48, and x1+x2≤1.0, and K represents the first correction constant.

[0081] In this embodiment, by obtaining and processing the environmental climate impact information group and the geological fluctuation impact information group, and obtaining the scenario usage impact factor Yxyz through calculation, it is possible to obtain environmental factors and geological factors based on the building usage scenario, and conduct a comprehensive analysis, which helps to comprehensively evaluate the stability of the building structure and solve the safety hazard problem caused by the failure to fully consider the usage scenario environmental factors in the traditional prefabricated building design.

[0082] Example 3

[0083] This embodiment is explained in Example 1, please refer to Figure 1 ,Specifically: the assembly model module includes a modeling unit, a normalization unit and a fitting unit;

[0084] The modeling unit constructs a three-dimensional force analysis model of the assembled building based on the assembly component information group by using BIM technology, marks the three-dimensional force analysis model of the assembled building, including size marking, structure marking and weight marking, and then inputs the use scenario information group into the three-dimensional force analysis model of the assembled building for model training and force analysis.

[0085] The normalization unit obtains force offset information of the three-dimensional force analysis model of the assembled building by training and force analysis of the trained three-dimensional force analysis model of the assembled building, including deformation information of the assembled building contact surface, displacement information of the assembled building, fluctuation information of the connection tightness of the assembled building, and force position offset information of the assembled building, and forms a first data set after normalization processing, and obtains overall force fluctuation information of the three-dimensional force analysis model of the assembled building after assembly, including overall force offset information of the assembled building, stress change information of the connection point of the assembled building, offset angle of the assembled building, and deformation information of the assembled building, and forms a second data set after normalization processing;

[0086] The first data set includes: a building contact surface deformation quantity value Xbsl, a building offset average value Pypj, a building connection tightness fluctuation value Jmbd and a building force position offset value Slpy;

[0087] The second data set includes: the force offset position quantity value Slsl, the overall offset angle value Pyjd, the stress fluctuation connection quantity value Ylsl and the building structure deformation position quantity value Xbsl;

[0088] The fitting unit normalizes the first data set and the second data set and then processes them to obtain: the assembled building force fluctuation coefficient Slxs and the building overall displacement coefficient Ztxs, and then fits them with the scene use influence factor Yxyz to obtain: the assembled building use evaluation index Pgzs;

[0089] The assembly building utilization evaluation index Pgzs is calculated by the following formula:

[0090]

[0091] Where, Pgzs represents the use evaluation index of assembled building, Slxs represents the force fluctuation coefficient of assembled building, Ztxs represents the overall displacement coefficient of building, Yxyz represents the scene use impact factor, y1, y2 and y3 represent the proportional coefficients of the force fluctuation coefficient of assembled building Slxs, the overall displacement coefficient of building Ztxs and the scene use impact factor Yxyz respectively;

[0092] Among them, 0.19≤y1≤0.31, 0.23≤y2≤0.48, 0.12≤y3≤0.21, and y1+y2+y3≤1.0, and R represents the second correction constant.

[0093] The force fluctuation coefficient Slxs of the assembled building is calculated by the following formula:

[0094]

[0095] Wherein, Slxs represents the force fluctuation coefficient of the assembled building, Xbsl represents the deformation value of the building contact surface, Pypj represents the average value of the building offset, Jmbd represents the fluctuation value of the building connection tightness, Slpy represents the offset value of the building force position, s1, s2, s3 and s4 represent the proportional coefficients of the deformation value Xbsl of the building contact surface, the average value of the building offset Pypj, the fluctuation value Jmbd of the building connection tightness and the offset value Slpy of the building force position respectively;

[0096] Among them, 0.13≤s1≤0.22, 0.12≤s2≤0.27, 0.16≤s3≤0.26, 0.14≤s4≤0.25, and s1+s2+s3+s4≤1.0, and Z represents the third correction constant.

[0097] The overall building offset coefficient Ztxs is calculated by the following formula:

[0098]

[0099] Wherein, Ztxs represents the overall offset coefficient of the building, Slsl represents the quantity value of the force offset position, Pyjd represents the overall offset angle value, Ylsl represents the quantity value of the stress fluctuation connection, Xbsl represents the quantity value of the building structure deformation position, z1, z2, z3 and z4 represent the proportional coefficients of the force offset position quantity value Slsl, the overall offset angle value Pyjd, the stress fluctuation connection quantity value Ylsl and the building structure deformation position quantity value Xbsl respectively;

[0100] Among them, 0.16≤z1≤0.24, 0.13≤z2≤0.22, 0.15≤z3≤0.28, 0.15≤z4≤0.26, and z1+z2+z3+z4≤1.0, and V represents the fourth correction constant.

[0101] Example 4

[0102] This embodiment is explained in Example 1, please refer to Figure 1 ,Specifically: the evaluation module includes a matching unit and an execution unit;

[0103] The matching unit matches the preset relevant information with the required comparison value, including matching the preset prefabricated building use analysis evaluation threshold P with the prefabricated building use evaluation index Pgzs to obtain the prefabricated building design execution evaluation plan;

[0104] The execution unit performs specific execution according to the content of the prefabricated building design execution evaluation plan, including notifications and prompts. The notifications include text message notifications, preset call voice notifications and email notifications to relevant prefabricated building design reviewers and design plan responsible persons. The prompts include interactive page pop-up prompts and red mark prompts for the prefabricated building three-dimensional force analysis model.

[0105] The assembly building design execution evaluation plan is obtained through the following matching method:

[0106] The prefabricated building use evaluation index Pgzs < the prefabricated building use analysis evaluation threshold P, and the qualified result of the prefabricated building design execution evaluation is obtained;

[0107] When the assembled building use evaluation index Pgzs≥assembly building use analysis evaluation threshold P, the results of unqualified items in the assembled building design execution evaluation are obtained. The unqualified items include building node connection items, building connection contact surface items and building wall bearing items. The relevant preset notifications and prompts are executed. When the assembled building use evaluation index Pgzs≥twice the assembly building use analysis evaluation threshold P, the preset assembled building design early warning notification is executed to notify the relevant design reviewers and design responsible personnel to handle it, and a pop-up prompt and a red mark prompt for the assembled building three-dimensional force analysis model are displayed on the interactive page.

[0108] In this embodiment, by matching the preset prefabricated building use analysis evaluation threshold P with the prefabricated building use evaluation index Pgzs, the prefabricated building design execution evaluation plan is obtained, and a comprehensive design execution evaluation plan can be obtained, which provides a scientific reference basis for decision makers, helps to effectively manage costs, control risks, and solve the problem of increased difficulty in cost control.

[0109] Example 5

[0110] A prefabricated building design method based on BIM technology, please refer to Figure 2 , specifically: including the following steps:

[0111] Step 1: The assembly data acquisition module obtains information on the components of the assembled building according to the building design drawings, including the size information and structure information of the assembled building, to form an assembly component information group;

[0112] Step 2: The assembly use module obtains environmental factors and geological factors according to the location of the assembly building use scene, forms a use scene information group, and after preprocessing and conversion, analyzes and obtains: scene use influencing factor Yxyz;

[0113] Step 3: The assembly model module constructs a three-dimensional force analysis model of the assembled building for the assembly component information group by using BIM technology, marks the three-dimensional force analysis model of the assembled building, including size marking, structure marking and weight marking, and then inputs the use scenario information group into the three-dimensional force analysis model of the assembled building for model training and force analysis, obtains the force offset information of the three-dimensional force analysis model of the assembled building to form a first data set, obtains the overall force fluctuation information of the three-dimensional force analysis model of the assembled building after assembly to form a second data set, and then processes and fits the first data set, the second data set and the scene use influencing factor Yxyz to obtain: the assembled building use evaluation index Pgzs;

[0114] Step 4: The evaluation module matches the preset assembly building use analysis evaluation threshold P with the assembly building use evaluation index Pgzs, obtains the assembly building design execution evaluation plan, and performs specific execution according to the content of the assembly building design execution evaluation plan, including notifications and prompts.

[0115] In this embodiment, through steps one to four, the location of the assembly construction use scene is obtained to obtain the scene information group, and the scene use influencing factor Yxyz is obtained after analysis, and is fitted with the constructed assembly building three-dimensional force analysis model training analysis structure to obtain the assembly building use evaluation index Pgzs, and then matched with the preset assembly building use analysis evaluation threshold P, and the relevant designers and responsible personnel are notified according to the matching results to realize automated data processing and simulation analysis, which greatly improves the efficiency of design and evaluation and saves time and labor costs.

[0116] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated building design system based on BIM technology, characterized by: It includes assembly data acquisition module, assembly use module, assembly model module and evaluation module; The assembly data acquisition module acquires information on components of the assembled building according to the architectural design drawings, including size information and structural information of the assembled building, to form an assembly component information group; The assembly use module obtains environmental factors and geological factors according to the location of the assembly building use scene, forms a use scene information group, and after preprocessing and conversion, analyzes and obtains: scene use influencing factor Yxyz; The assembly model module constructs a three-dimensional force analysis model of an assembled building from an assembly component information group by using BIM technology, marks the three-dimensional force analysis model of the assembled building, including size marking, structure marking and weight marking, and then inputs the use scenario information group into the three-dimensional force analysis model of the assembled building for model training and force analysis, obtains force offset information of the three-dimensional force analysis model of the assembled building to form a first data set, obtains overall force fluctuation information of the three-dimensional force analysis model of the assembled building after assembly to form a second data set, and then processes and fits the first data set, the second data set and the scene use influencing factor Yxyz to obtain: an assembled building use evaluation index Pgzs; The evaluation module matches the preset assembly building use analysis evaluation threshold P with the assembly building use evaluation index Pgzs, obtains the assembly building design execution evaluation plan, and performs specific execution according to the content of the assembly building design execution evaluation plan, including notification and prompting.

2. The prefabricated building design system based on BIM technology according to claim 1, characterized in that: The assembly data acquisition module includes an identification unit; The identification unit identifies information of several assembled building components from the architectural design drawings and extracts their size information, including using image processing technology or CAD software to identify the assembled building components in the architectural design drawings, extracting size information from the identified components, including length, width and height, and recording it in digital form, simultaneously identifying and analyzing the architectural design drawings, extracting structural features of several assembled building component information, including materials, structures and connection methods, extracting structural information from the identified components and recording it, and organizing the extracted size information and structural information into a structured data format to form an assembled component information group.

3. The prefabricated building design system based on BIM technology according to claim 1, characterized in that: The assembly and use module includes an environment unit, a geological unit and a scene impact unit; The environmental unit obtains the location information of the use position of the assembled building after the current design is assembled, and uses the Internet crawler technology to obtain the environmental information of the location according to the location information, including environmental wind speed, environmental humidity, environmental temperature, rainfall information and related environmental information of the location, and simultaneously intercepts and normalizes the historical environmental information within a fixed period of the environmental information of the location to obtain: the average environmental wind speed Fsz, the average environmental humidity Sdz, the average environmental temperature Wdz, the average rainfall Jyl and the average snowfall Jxl, which constitute the environmental climate impact information group; The geological unit uses the use positioning information of the assembled building after the current design is formed, and matches the use positioning information with the geological survey report or geological exploration report issued by the relevant departments, to obtain the relevant geological report information of the positioning area, including geological structure, geological landform, stratigraphic conditions, seismic activity and related geological information, and obtains the geological fluctuations occurring in the fixed period of the current positioning area, and obtains: the earthquake number value Dzz, the number of winds of level 8 and above Dfz, the number of mountain torrents Shz, the number of mountain fires Hsz and the number of floods Hlz, to form a geological fluctuation impact information group; The scenario impact unit performs fitting analysis based on the environmental climate impact information group and the geological fluctuation impact information group to obtain the scenario use impact factor Yxyz.

4. The prefabricated building design system based on BIM technology according to claim 3 is characterized by: The scenario uses the impact factor Yxyz calculated using the following formula: Wherein, Hjyz represents the environmental climate impact factor, Fsz represents the average environmental wind speed, Sdz represents the average environmental humidity, Wdz represents the average environmental temperature, Jyl represents the average rainfall, and Jxl represents the average snowfall; Dzyz represents the geological fluctuation impact factor, Dzz represents the earthquake number value, Dfz represents the number of level 8 gale and above, Shz represents the number of mountain torrents, Hsz represents the number of wildfires, and Hlz represents the number of floods; x1 and x2 represent the proportional coefficients of the environmental climate impact factor Hjyz and the geological fluctuation impact factor Dzyz, respectively. The value of the scene use impact factor Yxyz is obtained by associating the environmental climate impact factor Hjyz with the geological fluctuation impact factor Dzyz; Among them, 0.23≤x1≤0.52, 0.21≤x2≤0.48, and x1+x2≤1.0, and K represents the first correction constant.

5. The prefabricated building design system based on BIM technology according to claim 1 is characterized in that: The assembly model module includes a modeling unit, a normalization unit and a fitting unit; The modeling unit constructs a three-dimensional force analysis model of the assembled building based on the assembly component information group by using BIM technology, marks the three-dimensional force analysis model of the assembled building, including size marking, structure marking and weight marking, and then inputs the use scenario information group into the three-dimensional force analysis model of the assembled building for model training and force analysis. The normalization unit obtains force offset information of the three-dimensional force analysis model of the assembled building by training and force analysis of the trained three-dimensional force analysis model of the assembled building, including deformation information of the assembled building contact surface, displacement information of the assembled building, fluctuation information of the connection tightness of the assembled building, and force position offset information of the assembled building, and forms a first data set after normalization processing, and obtains overall force fluctuation information of the three-dimensional force analysis model of the assembled building after assembly, including overall force offset information of the assembled building, stress change information of the connection point of the assembled building, offset angle of the assembled building, and deformation information of the assembled building, and forms a second data set after normalization processing; The first data set includes: a building contact surface deformation quantity value Xbsl, a building offset average value Pypj, a building connection tightness fluctuation value Jmbd and a building force position offset value Slpy; The second data set includes: the force offset position quantity value Slsl, the overall offset angle value Pyjd, the stress fluctuation connection quantity value Ylsl and the building structure deformation position quantity value Xbsl; The fitting unit normalizes the first data set and the second data set and then processes them to obtain: the assembled building force fluctuation coefficient Slxs and the building overall displacement coefficient Ztxs, and then fits them with the scene use influence factor Yxyz to obtain: the assembled building use evaluation index Pgzs; The assembly building utilization evaluation index Pgzs is calculated by the following formula: Where, Pgzs represents the use evaluation index of assembled building, Slxs represents the force fluctuation coefficient of assembled building, Ztxs represents the overall displacement coefficient of building, Yxyz represents the scene use impact factor, y1, y2 and y3 represent the proportional coefficients of the force fluctuation coefficient of assembled building Slxs, the overall displacement coefficient of building Ztxs and the scene use impact factor Yxyz respectively; Among them, 0.19≤y1≤0.31, 0.23≤y2≤0.48, 0.12≤y3≤0.21, and y1+y2+y3≤1.0, and R represents the second correction constant.

6. The prefabricated building design system based on BIM technology according to claim 5 is characterized by: The force fluctuation coefficient Slxs of the assembled building is calculated by the following formula: Wherein, Slxs represents the force fluctuation coefficient of the assembled building, Xbsl represents the deformation value of the building contact surface, Pypj represents the average value of the building offset, Jmbd represents the fluctuation value of the building connection tightness, Slpy represents the offset value of the building force position, s1, s2, s3 and s4 represent the proportional coefficients of the deformation value Xbsl of the building contact surface, the average value of the building offset Pypj, the fluctuation value Jmbd of the building connection tightness and the offset value Slpy of the building force position respectively; Among them, 0.13≤s1≤0.22, 0.12≤s2≤0.27, 0.16≤s3≤0.26, 0.14≤s4≤0.25, and s1+s2+s3+s4≤1.0, and Z represents the third correction constant.

7. The prefabricated building design system based on BIM technology according to claim 5 is characterized by: The overall building offset coefficient Ztxs is calculated by the following formula: Wherein, Ztxs represents the overall offset coefficient of the building, Slsl represents the quantity value of the force offset position, Pyjd represents the overall offset angle value, Ylsl represents the quantity value of the stress fluctuation connection, Xbsl represents the quantity value of the building structure deformation position, z1, z2, z3 and z4 represent the proportional coefficients of the force offset position quantity value Slsl, the overall offset angle value Pyjd, the stress fluctuation connection quantity value Ylsl and the building structure deformation position quantity value Xbsl respectively; Among them, 0.16≤z1≤0.24, 0.13≤z2≤0.22, 0.15≤z3≤0.28, 0.15≤z4≤0.26, and z1+z2+z3+z4≤1.0, and V represents the fourth correction constant.

8. The prefabricated building design system based on BIM technology according to claim 1 is characterized by: The evaluation module includes a matching unit and an execution unit; The matching unit matches the preset relevant information with the required comparison value, including matching the preset prefabricated building use analysis evaluation threshold P with the prefabricated building use evaluation index Pgzs to obtain the prefabricated building design execution evaluation plan; The execution unit performs specific execution according to the content of the prefabricated building design execution evaluation plan, including notifications and prompts. The notifications include text message notifications, preset call voice notifications and email notifications to relevant prefabricated building design reviewers and design plan responsible persons. The prompts include interactive page pop-up prompts and red mark prompts for the prefabricated building three-dimensional force analysis model.

9. The prefabricated building design system based on BIM technology according to claim 8, characterized in that: The assembly building design execution evaluation plan is obtained through the following matching method: The prefabricated building use evaluation index Pgzs < the prefabricated building use analysis evaluation threshold P, and the qualified result of the prefabricated building design execution evaluation is obtained; When the assembled building use evaluation index Pgzs≥assembly building use analysis evaluation threshold P, the results of unqualified items in the assembled building design execution evaluation are obtained. The unqualified items include building node connection items, building connection contact surface items and building wall bearing items. The relevant preset notifications and prompts are executed. When the assembled building use evaluation index Pgzs≥twice the assembly building use analysis evaluation threshold P, the preset assembled building design early warning notification is executed to notify the relevant design reviewers and design responsible personnel to handle it, and a pop-up prompt and a red mark prompt for the assembled building three-dimensional force analysis model are displayed on the interactive page.

10. A method for designing an assembled building based on BIM technology, comprising the method for designing an assembled building based on BIM technology according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: The assembly data acquisition module obtains information on the components of the assembled building according to the building design drawings, including the size information and structure information of the assembled building, to form an assembly component information group; Step 2: The assembly use module obtains environmental factors and geological factors according to the location of the assembly building use scene, forms a use scene information group, and after preprocessing and conversion, analyzes and obtains: scene use influencing factor Yxyz; Step 3: The assembly model module constructs a three-dimensional force analysis model of the assembled building for the assembly component information group by using BIM technology, marks the three-dimensional force analysis model of the assembled building, including size marking, structure marking and weight marking, and then inputs the use scenario information group into the three-dimensional force analysis model of the assembled building for model training and force analysis, obtains the force offset information of the three-dimensional force analysis model of the assembled building to form a first data set, obtains the overall force fluctuation information of the three-dimensional force analysis model of the assembled building after assembly to form a second data set, and then processes and fits the first data set, the second data set and the scene use influencing factor Yxyz to obtain: the assembled building use evaluation index Pgzs; Step 4: The evaluation module matches the preset assembly building use analysis evaluation threshold P with the assembly building use evaluation index Pgzs, obtains the assembly building design execution evaluation plan, and performs specific execution according to the content of the assembly building design execution evaluation plan, including notifications and prompts.

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