BIM (Building Information Modeling)-based special-shaped wall column steel bar structure modeling method

Abstract

The invention discloses a BIM (Building Information Modeling)-based special-shaped wall column steel bar structure modeling method. The method comprises the following steps: constructing a special-shaped wall column model by utilizing three-dimensional building design software; drawing a steel bar model on the special-shaped wall column model; the steel bar model is imported into a steel structure model, and steel bars, colliding with a core column, an embedded part and a steel beam of a steel structure, in the steel bar model are modified; the modified steel bar model is disassembled, the disassembling sequence is recorded, and the reverse sequence of the disassembling sequence serves as the steel bar installation sequence of the special-shaped wall column to guide construction of the steel bar structure of the special-shaped wall column. The problems that the steel bar structure of the special-shaped wall column is complex, the installation and construction efficiency is low, and the sample plate manufacturing amount is large are solved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a reinforcement structure modeling method of a special-shaped wall column based on BIM. Background Art

[0002] Special-shaped wall columns refer to columns with cross-sections that are different from conventional rectangular or square columns, such as T-shaped, L-shaped, Z-shaped or cross-shaped, etc., according to the requirements of building design and layout. The design of these special-shaped wall columns must meet the requirements of structural stiffness and bearing capacity.

[0003] Special-shaped wall columns can adopt frame structures and frame-shear wall structure systems. In actual projects, according to the needs of building functions, frame structures and frame-shear wall structure systems composed of special-shaped wall columns with T-shaped, L-shaped, cross-shaped and Z-shaped cross-sections may be adopted.

[0004] Due to the special cross-section of the special-shaped wall column, the stiffness comparison between the inner and outer directions of the wall plane may be quite different, resulting in inconsistent bearing capacity in all directions. Therefore, special attention should be paid to its force clarity and deformation capacity during design.

[0005] In terms of earthquake-resistant design, it is recommended to adopt a regular structural design scheme and avoid seriously irregular structural design. For irregular special-shaped wall-column structures, in addition to complying with the current national standard "Code for Seismic Design of Buildings" GB 50011, the design requirements should also comply with specific regulations.

[0006] During the construction and acceptance of special-shaped wall-column structures, it is necessary to take into account their unique construction and design requirements to ensure construction quality and structural safety.

[0007] However, there are still many difficulties in the construction of special-shaped wall columns. In the construction of special-shaped wall columns, especially in the node area, the binding of the crossed longitudinal reinforcement and stirrups is very difficult. Due to the particularity of the special-shaped wall column structure, the binding of stirrups at the node is more complicated than that of the ordinary frame structure, which directly affects the construction efficiency and quality. Summary of the invention

[0008] In order to overcome the defects of the prior art, a BIM-based steel bar structure modeling method for special-shaped wall columns is provided to solve the problems of complex steel bar structure of special-shaped wall columns, low installation and construction efficiency, and large amount of sample production.

[0009] To achieve the above object, a BIM-based steel bar structure modeling method for special-shaped wall columns is provided, comprising the following steps:

[0010] Use 3D architectural design software to build special-shaped wall column models;

[0011] Drawing a steel bar model on the special-shaped wall column model;

[0012] Importing the steel bar model into the steel structure model, and modifying the steel bars in the steel bar model that collide with the core column, embedded parts and steel beams of the steel structure;

[0013] The modified steel bar model is disassembled and the disassembly sequence is recorded, and the reverse sequence of the disassembly sequence is used as the steel bar installation sequence of the special-shaped wall column to guide the construction of the steel bar structure of the special-shaped wall column

[0014] Furthermore, the three-dimensional architectural design software is Revit software.

[0015] Furthermore, when the steel bar model is imported into the steel structure model, the collision detection function of the revit software is used to determine the steel bars in the steel bar model that collide with the core column, embedded parts and steel beams of the steel structure.

[0016] The beneficial effect of the present invention is that the present invention provides a BIM-based steel bar structure modeling method for special-shaped wall columns, opens up a new construction method for complex steel bar installation of special-shaped wall columns, utilizes the visualization characteristics of Revit software to simulate the construction process of special-shaped wall columns, makes the steel bar installation more beautiful, and is also more convenient for the rationalization of the entire plan, reduces the amount of sample production, and achieves the effect of saving materials and labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0018] Figures 1 to 4 The present invention is a schematic diagram of the steps of a method for modeling a reinforcement structure of a special-shaped wall column based on BIM according to an embodiment of the present invention. DETAILED DESCRIPTION

[0019] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0020] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] Reference Figures 1 to 4 As shown, the present invention provides a reinforcement structure modeling method of special-shaped wall columns based on BIM, comprising the following steps:

[0022] S1. Use 3D architectural design software to construct a special-shaped wall column model.

[0023] In this embodiment, the three-dimensional architectural design software is Revit software.

[0024] See also Figure 1 As shown, create a built-in model of the component, set the family parameter category to structural column, use the stretch command, draw the outline of the special-shaped wall column according to the design drawing, and set the stretch start and end points according to the floor height to complete the modeling of the special-shaped wall column.

[0025] Specifically, click the create command in the revit software, select the "stretch" function in the create command, draw the outline of the special-shaped wall column as needed, set the "stretch" height according to the floor height, and follow the same steps to create steel structure core columns, embedded parts and steel beams according to design needs.

[0026] S2. Draw the steel bar model 1 on the special-shaped wall column model.

[0027] See also Figure 2 , create a built-in model of the component, set the family parameter category to a regular model, use the lofting command, and draw the shape of the outer stirrups according to the design drawing. You can draw the steel bar model by picking up the 3D edge and drawing the lofting path. Edit the outline to a circle with the same diameter as the stirrup diameter to complete the modeling of a single strand of stirrups. Use the array command to complete the drawing of the entire layer of stirrups of this model according to the stirrup spacing.

[0028] Specifically, click on the structural reinforcement in the Revit software and load the reinforcement shape. Draw the main reinforcement and stirrups of the special-shaped wall column reinforcement according to the design requirements, set the stirrup spacing, and complete the reinforcement configuration.

[0029] S3. Import the steel bar model into the steel structure model 2, and modify the steel bars in the steel bar model that collide with the core column, embedded parts and steel beams of the steel structure.

[0030] As a preferred implementation, after the steel bar model is imported into the steel structure model, the collision detection function of the Revit software is used to determine the steel bars in the steel bar model that collide with the core columns, embedded parts and steel beams of the steel structure.

[0031] See also Figure 3 As shown, after switching the plane view to the plane view, use the reinforcement shape command to import straight reinforcement, draw the main reinforcement according to the design drawing, and ensure that the number and specifications of the main reinforcement meet the design requirements.

[0032] See also Figure 4 As shown in the figure, after importing the steel structure model, it was found that the steel beam collided with the stirrups, and the stirrups of the steel structure could not be moved downward. Therefore, it was necessary to dismantle and modify the stirrup model of this part so that it could meet the on-site construction requirements and design requirements.

[0033] In the Revit software, based on the steel bar model, export the list of components where the steel bars collide with the steel structure core columns, embedded parts, and steel beams, select the unreasonable stirrup models and positions, delete such steel bars, select the "Loft" command in the creation command to draw the modified steel bar model, and realize the steel bar modification.

[0034] By using the collision detection function of Revit, we found out the unreasonable installation of steel bars. After demonstration, we met the mechanical properties of the steel bars before modification, thus ensuring the rationality of the steel bar installation.

[0035] S4. Disassemble the modified steel bar model and record the disassembly sequence, and use the reverse order of the disassembly sequence as the steel bar installation sequence of the special-shaped wall column to guide the construction of the steel bar structure of the special-shaped wall column

[0036] Based on the steel bar model after the steel bar removal and modification, the stirrups of the same type are moved out of the wall in the wall height direction through the translation function. If the steel bar is found to collide with the steel beam during the movement, repeat step three to continue to complete the steel bar modification. Otherwise, record the order of steel bar removal. The reverse order of the steel bar removal order is the correct step for steel bar installation. According to this step, reasonable steel bar installation steps can be planned.

[0037] The present invention provides a BIM-based steel bar structure modeling method for special-shaped wall columns, opens up a new construction method for complex steel bar installation of special-shaped wall columns, utilizes the visualization feature of Revit software to simulate the construction process of special-shaped wall columns, makes the steel bar installation more beautiful, and is also more convenient for the rationalization of the entire plan, reduces the amount of sample production, and achieves the effect of saving materials and labor.

[0038] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with the technical features with similar functions disclosed in this application (but not limited to) by each other.

Claims

1. A BIM-based steel bar structure modeling method for special-shaped wall columns, characterized in that: The following steps are involved: Use 3D architectural design software to build special-shaped wall column models; Drawing a steel bar model on the special-shaped wall column model; Importing the steel bar model into the steel structure model, and modifying the steel bars in the steel bar model that collide with the core column, embedded parts and steel beams of the steel structure; The modified steel bar model is disassembled and the disassembly sequence is recorded, and the reverse sequence of the disassembly sequence is used as the steel bar installation sequence of the special-shaped wall column to guide the construction of the steel bar structure of the special-shaped wall column.

2. The reinforcement structure modeling method of special-shaped wall columns based on BIM according to claim 1 is characterized in that: The three-dimensional architectural design software is Revit software.

3. The reinforcement structure modeling method of special-shaped wall columns based on BIM according to claim 2 is characterized in that: When the steel bar model is imported into the steel structure model, the collision detection function of the revit software is used to determine the steel bars in the steel bar model that collide with the core column, embedded parts and steel beams of the steel structure.

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