Inspection Module Division and Formation Method of BIM-Based Steel Structure Quality Acceptance System

Abstract

The present invention relates to a method for dividing and forming inspection modules of a steel structure quality acceptance system based on BIM. According to the data model based on the IFC standard after transformation, model data and position relationship information are extracted, and scattered independent components, parts, and components are re-identified and grouped to achieve the division and formation of actual engineering components and on-site construction nodes in the model. By comparing the information between the original steel structure deepening model and the lightweight IFC model of the platform, the wrongly divided areas are determined according to the partition check, and the wrong parts are re-divided and combined to ensure the consistency between the division and combination of modules in the model and the actual engineering components and on-site construction nodes. On this basis, the module division of the sample space unit of different inspection lot items is carried out, so that the multi-dimensional sample space units formed by different module division methods correspond to the requirements of different inspection lot items, enabling the BIM-based building engineering quality acceptance system and method to be successfully applied to steel structure projects.

Description

Technical Field

[0001] The present invention relates to the technical field of linear and steel structure quality acceptance, and particularly to a method for dividing and forming inspection modules of a steel structure quality acceptance system based on BIM. Background Art

[0002] In Chinese Patent CN201710877674.3, "Method and System for Building Engineering Quality Acceptance Based on BIM", corresponding boundary lines are formed by obtaining the boundary values of each component in the building structure model, and the corresponding components are divided into corresponding inspection modules. It realizes from the modeling unit to the disassembling unit, and then forms sampling units from the disassembling units by sampling.

[0003] However, when applying this invention patent to the quality acceptance of steel structures and developing a corresponding steel structure quality acceptance system based on BIM, this inspection module division principle cannot be used. Compared with general building projects using reinforced concrete structures, components (mainly beams, columns, walls, slabs, etc.) are generally divided in the vertical direction by the planes of each floor, and in the horizontal direction, by the grid formed by beam-column joints, etc. The boundary lines can be directly used for component division through the floor planes and horizontal grids. However, the components in steel structure projects are often not divided according to the floor planes and horizontal grids. For example, a steel column often has a single component spanning several floors above one floor, and the upper and lower steel column components are not allowed to be divided by the floor plane. The division position must be at a certain elevation between two adjacent floors, and this elevation is not uniform. The inspection modules of components such as beams, columns, and braces in steel structures are completely based on the component division during deepening and the physical components after processing and arrival at the site. For example, there may be several steel beam brackets attached to a steel column, which is a part of the steel beam; considering the constraints of processing and transportation, the beam component between two beam-column joints can be divided into multiple components instead of one component. Therefore, when dividing steel structure components and forming inspection modules, different component division principles and methods from those of general building engineering quality acceptance must be adopted.

[0004] At the same time, since professional steel structure deepening modeling software such as TEKLA is generally used for steel structure deepening, and steel structure components can be further divided into parts and components, when converting the steel structure deepening model into the data model used by the building engineering quality acceptance system based on BIM, due to software differences, the single model unit of the steel structure component will be disassembled into each part and component model unit, resulting in a further increase in the difficulty of component division. This needs to be considered for the inspection module division method of the steel structure quality acceptance system.

[0005] In addition, apart from the different component divisions, generally speaking, for construction projects using reinforced concrete structures, since the number of components serves as the measurement basis for the inspection lot capacity during quality acceptance, therefore, according to its component division principle, the modeling unit can be directly sampled to form sampling units by dividing the modeling unit into single disassembly units through component division; while for steel structure projects, during quality acceptance, the inspection lot items are complex, and it is not simply the number of components such as beams, columns, and supports that serves as the measurement basis for the inspection lot capacity. There are different inspection lot items with multiple dimensions as the measurement basis for the inspection lot capacity, such as the number of welds, the number of components like high-strength bolts, the number of joints, and the number of single-layer natural components. Besides the disassembly units with components as units, further disassembly and combination are required to form other units as multi-level sample space units, and sampling is carried out according to their respective principles to form their respective sampling units. Summary of the Invention

[0006] The inspection module division and formation method of a BIM-based steel structure quality acceptance system of the present invention is to solve the problems of the component division method different from that of general construction projects and the multi-dimensional inspection lot capacity of different inspection lot items for steel structure projects. It is divided and formed into inspection modules in its unique way as needed, and multi-dimensional different sample space units are established between the modeling unit and the sampling unit.

[0007] The present invention is realized through the following technical solutions:

[0008] An inspection module division and formation method of a BIM-based steel structure quality acceptance system includes the following steps:

[0009] Utilize the original steel structure engineering deepening model, convert it into a data model based on the IFC standard, and classify, process, and store the information of components, parts, and components in the original steel structure deepening model.

[0010] Identify the components in the converted data model based on the IFC standard, assign identification codes to all components, parts, and components, associate the identification code information of components, parts, and components, and store the information.

[0011] According to the associated information, group the components and their associated parts or components and parts, restore them to the associated grouping information of components, parts, or components and parts in the original steel structure deepening model; and based on this, perform lightweight and visualization processing on the IFC data model to form a platform-visible lightweight IFC model.

[0012] According to the associated information between components, parts, and components, form the inspection modules required for different sample space units, and further disassemble or combine them according to the needs of different inspection lot items to form the inspection models of other sample space units.

[0013] For different inspection lot items, sampling is carried out on different sample space units according to their respective requirements to form their respective sampling units.

[0014] The further improvement of the method lies in that the steps of identifying components in the converted IFC standard-based data model include: identifying independent components in the converted IFC standard-based data model; through the identified components, identifying independent parts and components that have a contact relationship with the components in the spatial relationship, and grouping the parts and components that meet specific requirements with the identified components; identifying independent parts and components that have a spatial contact with the grouped model of components, parts and components, and expanding the grouping of the parts and components that meet specific requirements with the identified grouped model; repeating the above operations until no further expansion of the grouping is possible, completing the grouping of all component, part and component models starting from independent components, and each component, part and component model grouping starting from an independent component is a component after being processed in the factory.

[0015] The further improvement of the method lies in that after completing the grouping of all component, part and component models starting from independent components, it further includes the steps of: identifying the remaining components, and associating and grouping them according to the data of each on-site construction node set in advance, identifying independent parts and components that have a contact relationship with the component group in the spatial relationship, and expanding the grouping of the parts and components that meet specific requirements with the identified component group; identifying independent parts that have a spatial contact with the grouped model of components and parts, and expanding the grouping of the parts and components that meet specific requirements with the identified grouped model; repeating the above operations until no further expansion of the grouping is possible, and each component, part and component model grouping starting from the associated component is a node that needs to be constructed during on-site construction between components.

[0016] The further improvement of the method lies in that it further includes the steps of: comparing the list of component, part and component digital information exported from the original steel structure detailed model with the list formed by the component, part and component models in the converted IFC standard-based data model and the information obtained from their identification, and the content of the comparison is the grouping quantity and the composition of components, parts and components in each single group, and checking the grouping situation of components, parts and components in the models before and after conversion through the differences in the information lists.

[0017] The further improvement of the method lies in that the checking step includes: performing partition checking on the models before and after transformation; re-partitioning the partition where errors are found, repeating the checking to locate smaller error partitions, performing refined transformation on the partition model, and correcting the grouping in the data model based on the IFC standard after transformation; in the case of multiple transformation errors, after displaying the located area through the lightweight visual IFC model of the platform, the grouping is adjusted in the model through manual operation.

[0018] The further improvement of the method also includes the step of: based on various component types, node type data, original ungrouped components, parts, and part information, and the set floor and partition requirements of the model, different divisions and combinations are performed on the above information according to different inspection lot items to form different inspection modules. All the inspection modules formed under the same division and combination are an independent sample space unit for one or more inspection lot samplings.

[0019] Due to the adoption of the above technical solution, the beneficial effects obtained by the present invention are:

[0020] The present invention is a method for dividing and forming inspection modules of a steel structure quality acceptance system based on BIM. According to the data model based on the IFC standard after transformation, model data and position relationship information are extracted, and scattered independent components, parts, and parts are re-identified and grouped to achieve the division and formation of actual engineering components and on-site construction nodes in the model. Through the information comparison between the original steel structure deepening model and the lightweight IFC model of the platform, the error division area is determined according to partition checking, and the error part is re-divided and combined to ensure the consistency between the division and combination of modules in the model and actual engineering components and on-site construction nodes. On this basis, the module division of the sample space unit for different inspection lot items is carried out, so that the multi-dimensional sample space units formed by different module division methods correspond to the requirements of different inspection lot items, enabling the building engineering quality acceptance system and method based on BIM to be successfully applied to steel structure projects. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is a system diagram of a steel structure quality acceptance system based on BIM.

[0023] Figure 2This is a flowchart of the inspection module division and formation method for the BIM-based steel structure quality acceptance system of the present invention. Specific embodiments

[0024] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted here that the description of these embodiments is for helping to understand the present invention, but does not constitute a limitation to the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0025] In the process of steel structure quality acceptance, if the developed quality acceptance software uses the existing invention patent "BIM-based Building Engineering Quality Acceptance System and Method" (application number CN201710877674.3), by forming or setting boundary lines, the corresponding components are divided into corresponding inspection modules, a single disassembly unit is formed from the modeling unit through component division, and then a sampling unit is formed from the single disassembly unit through sampling. Then, the division of steel structure components must be carried out along the horizontal axis network and at the same elevation or floor plane. There will be situations where the physical components are not included in the sampled sample space or are repeatedly included in the sample space of the same inspection lot.

[0026] For example, a single multi-story steel column component is divided into one column component for each floor; another example is that an extra-long single-span steel beam is disassembled into multiple sections during the deepening processing, and after entering the site, it is assembled and installed in sections, but it is divided into a single beam component. This will lead to the mismatch and omission of component information such as the quantity and size of the components entering the site and the components and quantities in the process data.

[0027] There may also be errors in component division and misidentification of node types or other information between components. For example, the actual node between a steel column component with a steel beam bracket and the steel beam is a beam-beam node, but since the steel column component with a steel beam bracket is simply identified as a column component, the node between it and the steel beam is identified as a beam-column node. This will lead to errors in the inspection lot item categories or item information related to component division in quality acceptance.

[0028] At the same time, since only the disassembly unit generated by component division is used as the only sample space, it is impossible to perform statistics and extraction with its own quantity as the inspection lot capacity, such as welds, stud bolts, high-strength bolt connections, etc. As a result, a large number of inspection lot items cannot be operated on the quality acceptance system software.

[0029] After using the method of the present invention, in terms of component division, by processing and transforming the steel structure detailed model into a data model based on the IFC standard, and taking the component division in the detailed process as the principle, the disassembled components, parts, and components are re-identified and sorted to form component division as the component disassembly unit. At the same time, at the levels of parts and components, part disassembly units and component disassembly units are also formed. Through recombination, different combined units are formed as needed, and these different template space units obtained from the original modeling units form a multi-level unit system. According to the requirements of different inspection lot items, a multi-level sampling unit system is formed according to different sampling rules.

[0030] First, refer to Figure 1 As shown, it is the system diagram of the BIM-based steel structure quality acceptance system adopted by the method of the present invention. Some functions can refer to the BIM-based construction project quality acceptance system in the existing invention patent "BIM-based Construction Project Quality Acceptance Method and System" (application number CN201710877674.3), including a modeling unit 101, a sample space unit system 102, a storage unit 103, a sampling unit system 104, and a processing unit 105. The modeling unit 101 is connected to the sample space unit system 102, the storage unit 103 is connected to the modeling unit 101, the sample space unit system 102, and the sampling unit system 104, and the processing unit 105 is connected to the modeling unit 101, the sample space unit system 102, the storage unit 103, and the sampling unit system 104. Among them, the sample space unit system 102 includes multiple sample space units, including sample space unit 1, sample space unit 2, and sample space unit m; the sampling unit system 104 includes multiple sampling units, including sampling unit 1, sampling unit 2, and sampling unit m.

[0031] This acceptance system further includes a server side 10 and multiple mobile terminals. The multiple mobile terminals are communicatively connected to the server side 10. This communication connection can be a wireless connection, including a mobile network, or a wired connection. The number of mobile terminals is set according to needs, including mobile terminal 1, mobile terminal 2, and mobile terminal n.

[0032] Cooperate with Figure 2 As shown, the present invention provides a method for dividing and forming an inspection module of a BIM-based steel structure quality acceptance system, which is realized by the following technical solutions.

[0033] A method for dividing and forming an inspection module of a BIM-based steel structure quality acceptance system, which includes the following steps:

[0034] Step S1: Use the original steel structure engineering deepening model to convert it into a data model based on the IFC standard, and classify and store the information of components, parts, and parts in the original steel structure deepening model; the original steel structure engineering deepening model comes from the modeling unit.

[0035] Step S2: Identify the components in the converted data model based on the IFC standard, assign identification codes to all components, parts, and parts, associate the identification code information of components, parts, and parts, and store the information; the information can be stored in the storage unit.

[0036] Step S3: According to the associated information, group the components and their associated parts, parts, or parts, parts into groups, and restore them to the associated grouping information of components, parts, parts, or parts in the original steel structure deepening model; and perform lightweight and visualization processing on the IFC data model based on this to form a platform-visible lightweight IFC model; this step can be completed in the processing unit.

[0037] Step S4: According to the association information between components, parts, and parts, form the inspection modules required for different sample space units, and further disassemble or combine them according to the needs of different inspection lot items to form other sample space units; this step can be completed in the sample space system.

[0038] Step S5: Different inspection lot items sample different sample space units according to their respective needs to form their respective sampling units; this step can be completed in the sampling unit system.

[0039] Furthermore, use the original steel structure engineering deepening model to convert it into a data model based on the IFC standard. Due to model conversion reasons, the combination of components, parts, and parts in the original steel structure deepening model is broken up into scattered and independent components, parts, and parts. First, identify the independent components in the converted data model based on the IFC standard, and then identify the independent parts and parts that have a contact relationship with the components in terms of spatial relationship through the identified components, and group the parts and parts that meet specific requirements with the identified components; then identify the independent parts and parts that have spatial contact with the grouped model of components, parts, and parts after grouping, and expand the group with the parts and parts that meet specific requirements and the identified grouped model. Repeat the above operations until no further expansion of the group is possible. At this time, each group of component, part, and part models starting with an independent component is a component that has been processed in the factory.

[0040] Further, the original steel structure engineering deepening model is utilized to be transformed into a data model based on the IFC standard. After completing the grouping of components, parts, and parts models starting from independent components, the remaining parts are identified, and associated and grouped according to the data of various on-site construction nodes set in advance. For each grouped part group, the independent parts and components in contact with the part group in terms of spatial relationship are identified, and the parts meeting specific requirements are expanded and grouped with the identified part group; then, the independent parts in contact with the grouped components and parts models in terms of space are identified, and the parts meeting specific requirements are expanded and grouped with the identified grouped model. The above operations are repeated until no further expansion and grouping can be carried out. At this time, each grouping of components, parts, and parts models starting from associated components is a node that needs to be constructed during on-site construction between components.

[0041] Further, the list of component, part, and part digital information exported from the original steel structure deepening model is compared with the list formed by the component, part, and part models and the information obtained from their identification in the transformed data model based on the IFC standard. The main content of the comparison is the grouping quantity and the composition of components, parts, and parts in each single group. Through the differences in the information lists, the grouping situations of components, parts, and parts in the models before and after transformation are inspected. To quickly determine the location of information discrepancies, the models before and after transformation are checked in partitions, and then the partition with errors is further partitioned. After repeated checking, the smaller error partition is located, and the model of this partition is refined and transformed to correct the grouping in the transformed data model based on the IFC standard. In the case of multiple transformation errors, after the location area is displayed through the lightweight visualization IFC model of the platform, the grouping is adjusted manually in the model.

[0042] Further, the grouping of components, parts, and parts models starting from independent components is a component that has been processed in the factory; the grouping of components, parts, and parts models starting from associated components is a node that needs to be constructed during on-site construction between components. Based on the various component types, node type data, the original ungrouped component, part, and part information in these two groups of data, and the set floor and partition requirements of the model, different divisions and combinations are made for the above information according to different inspection lot items, forming different inspection modules. All the inspection modules formed under the same division and combination are an independent sample space unit, which can be used for sampling of one or more inspection lots.

[0043] The present invention has the following advantages compared with the prior art:

[0044] In general steel structure projects, from the material arrival, processing, and assembly to form components, to the arrival of components, installation, welding, etc., there are a large number of inspection lot items. Conventionally, sampling inspections are carried out for each inspection lot to form original records, and then statistical calculations are performed based on the original records to form the final inspection lot forms, which requires a huge amount of time and effort. Moreover, it is difficult to trace the original records after the inspection lot forms are archived.

[0045] After using the method of the present invention, the BIM-based building engineering quality acceptance system and method, which were originally only applicable to general reinforced concrete structures, can be applied to steel structure projects. On the one hand, random sampling is realized, avoiding the subjectivity of sampling inspection; on the other hand, during the inspection process, the test data and inspection results can be input on the spot immediately, and the final inspection lot form can be automatically calculated, with high accuracy and being convenient and concise; in addition, each inspection lot form in the inspection lot electronic document is associated with the original record and the model, facilitating traceability.

[0046] The present invention saves a large amount of inspection lot inspection and document preparation workload, improves the work efficiency of quality acceptance, and at the same time realizes the standardization and informatization of data, achieving the improvement of work quality.

[0047] The above has described the embodiments of the present invention in detail in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principles and spirit of the present invention, various changes, modifications, substitutions, and variations made to these embodiments still fall within the protection scope of the present invention.

Claims

1. A method for dividing and forming inspection modules of a steel structure quality acceptance system based on BIM, characterized in that, Including the steps: Using the original steel structure engineering deepening model, converting it into a data model based on the IFC standard, classifying and storing the information of components, parts, and parts in the original steel structure deepening model; Identifying the components in the converted data model based on the IFC standard, assigning identification codes to all components, parts, and parts, associating the identification code information of components, parts, and parts, and storing the information. The identification steps include: Identifying the independent components in the converted data model based on the IFC standard; Through the identified components, identifying the independent parts and parts that have a contact relationship with the components in the spatial relationship, and grouping the parts and parts that meet specific requirements with the identified components; Identifying the independent parts and parts that have spatial contact with the grouped model of components, parts, and parts, and expanding the group with the parts and parts that meet specific requirements and the identified grouped model; Repeating the above operations until no further expansion of the group is possible, completing the grouping of all component, part, and part models starting from independent components. Each component, part, and part model group starting from an independent component is a component after processing in the factory; According to the associated information, grouping the components and their associated parts, parts, or part groups, restoring them to the component, part, part, or part group association information in the original steel structure deepening model; and performing lightweight and visualization processing on the IFC data model based on this to form a platform-visible lightweight IFC model; Forming the inspection modules required for different sample space units according to the association information between components, parts, and parts, and further disassembling or combining them to form the inspection models of other sample space units according to the needs of different inspection lot projects; Different inspection lot projects sample different sample space units according to their respective needs to form their respective sampling units.

2. The inspection module division and formation method of the BIM-based steel structure quality acceptance system according to claim 1, wherein After completing the grouping of all component, part, and part models starting from independent components, it also includes the steps: Identifying the remaining parts, associating and grouping them according to the data of various on-site construction nodes set in advance. For each grouped part group, identifying the independent parts and parts that have a contact relationship with the part group in the spatial relationship, and expanding the group with the parts that meet specific requirements and the identified part group; Identifying the independent parts that have spatial contact with the grouped model of parts and parts, and expanding the group with the parts that meet specific requirements and the identified grouped model; Repeating the above operations until no further expansion of the group is possible. Each part and part model group starting from an associated part is a construction node required for on-site construction between components.

3. The inspection module division and formation method of the BIM-based steel structure quality acceptance system according to claim 1, characterized in that It also includes the steps: Checking the list of component, part, and part digital information exported from the original steel structure deepening model against the list formed by the component, part, and part models in the converted data model based on the IFC standard and the information obtained from their identification. The content of the check is the grouping quantity and the composition of components, parts, and parts in each single group. Through the differences in the information list, checking the grouping situation of components, parts, and parts in the models before and after conversion.

4. The inspection module division and formation method of the BIM-based steel structure quality acceptance system according to claim 3, characterized in that, The verification steps include: Conduct partition verification on the models before and after transformation; Re-partition the partitions where errors are found, repeat the verification to locate smaller error partitions, and perform refined transformation on the models of these partitions to correct the grouping in the data model based on the IFC standard after transformation; In the case of multiple transformation errors, after displaying the positioning area through the lightweight visualization IFC model of the platform, adjust the grouping in the model through manual operations.

5. The method for dividing and forming the inspection module of the BIM-based steel structure quality acceptance system according to claim 2, wherein It also includes the steps: Based on various component types, node type data, original ungrouped components, parts, and part information, as well as the floor and partition requirements of the set model, different divisions and combinations are made among the above information according to different inspection lot items to form different inspection modules. All the inspection modules formed under the same division and combination are an independent sample space unit for one or more inspection lot samplings.

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