CN113468631B - Automatic arrangement method for cast-in-place steel bars in one-way laminated slab close-splicing type joint connection - Google Patents
Automatic arrangement method for cast-in-place steel bars in one-way laminated slab close-splicing type joint connection Download PDFInfo
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Abstract
The invention relates to the technical field of building construction, and discloses an automatic arrangement method for cast-in-place steel bars connected by one-way superimposed sheet close-spliced seams. The method mainly comprises the steps of screening out a laminated slab model in a model area, extracting geometric parameters of the one-way slabs, obtaining joint information of adjacent one-way slabs, setting parameters such as steel bar types, steel bar intervals, arrangement positions and the like, arranging longitudinal reinforcing ribs and horizontal reinforcing ribs at joints of the one-way slabs and the slabs, and obtaining the cast-in-situ steel bar model information of the surfaces of the one-way slabs through point-line position deviation according to the geometric information of the upper surface and the lower surface of the one-way slabs. The method realizes the accurate positioning of the cast-in-place reinforcing steel bars at the joint of the unidirectional plate and the plate, ensures that the reinforcing steel bars and the gluten can be automatically arranged, avoids the internal collision of the reinforcing steel bars, and finally generates reinforcing steel bar entities rapidly in batches. The problems that in the deepened design of the prior art, the arrangement accuracy of the steel bars at the joint of the laminated slab component plate and the plate is low, the design is unreasonable and the like are solved, and the method has the advantages of improving the on-site machining accuracy and the construction efficiency and the like.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a method for carrying out parameterization setting on the size and the spatial position of a steel bar of a cast-in-place steel bar at a joint of a BIM three-dimensional model unidirectional plate and a plate based on a BIM technology to realize high-precision and rapid arrangement of a steel bar model.
Background
The Building Information model (Building Information Modeling) is based on various relevant Information data of a construction engineering project, is established, and simulates real Information of a Building through digital Information. The method has five characteristics of visualization, coordination, simulation, optimization and graphing.
The arrangement of reinforcing steel bars at the joint of the laminated plate and the plate is easily disordered in the traditional construction process, the high-precision laminated plate cast-in-place reinforcing steel bar model is beneficial to blanking of reinforcing steel bars of different types, and the two-dimensional drawing information is accurately expressed, and meanwhile, a good technical guidance effect is provided for the reinforcing steel bar binding sequence and the reinforcing steel bar binding space position in the field reinforcing steel bar binding process. In the process of arranging the longitudinal and horizontal reinforcing ribs at the joint of the plate and the plate, the collision of reinforcing steel bars of different types often occurs, and the three-dimensional expression of a reinforcing steel bar model deviates from a drawing, so that the model precision of the reinforcing steel bars at the joint of the laminated slab is directly influenced.
The modeling technology of the BIM is the basis of the application of the BIM technology, and just because the modeling process can complete the following series of BIM functions. Therefore, the efficiency and precision of BIM modeling are always one of the main requirements for application of BIM technology in field construction. Such as the Revit family of software available from Autodesk corporation, although the software itself has powerful modeling capabilities, improvements are needed in terms of efficiency in combination with job sites, particularly rebar modeling. The steel bars at the joint of the laminated plate and the plate are not only regular and complex, but also precise in structure. At present, the arrangement rule of the plug-in components which are arranged on the market rapidly for the cast-in-place reinforcing steel bars at the joint of the laminated plate and the plate is disordered, the adjustable parameters are less, and the problem of reinforcing steel bar collision is not considered. Meanwhile, in the aspect of operation, when the superimposed slab members with different sizes face each other, Revit series software is utilized, a modeling worker cannot copy the manually arranged steel bar models to the new superimposed slab members with different sizes, manual modeling is completely adopted, a large amount of manpower and material resources are consumed, and accuracy cannot be guaranteed.
Disclosure of Invention
The invention aims to provide an automatic arrangement method for cast-in-place steel bars connected by one-way laminated slab close-splicing seams, and aims to solve the technical problems of low efficiency, time consumption and labor consumption in the existing BIM technology deepening design process.
In order to achieve the purpose, the invention adopts the following technical scheme:
the automatic arrangement method of the cast-in-place steel bars for the close-spliced seam connection of the unidirectional superimposed sheets comprises the following steps:
the method comprises the following steps: a three-dimensional model of the beam panel frame is created.
Step two: and (4) selecting a model area needing to be laid with the steel bars in a frame mode, and screening out the floor slab model in the frame selection area.
Step three: and acquiring information of four edges of the lower surface of the floor slab, screening the unidirectional boards in all the floor slabs according to the discrimination conditions of the unidirectional boards and the bidirectional boards, and finally acquiring the geometric information of all the unidirectional board models.
Step four: and acquiring the short sides of all the unidirectional plates according to the geometric information of the four sides of the bottom surface of the unidirectional plate in the third step. And judging whether the acquired short edges of the unidirectional board have overlapped edges, namely crossed edges. And obtaining a list of the intersected short edges of all the unidirectional plates according to the screening condition, and finally obtaining the short edge joints of all the unidirectional plates according to all the intersected short edges.
Step five: and according to the geometric information of the short side seam of the unidirectional board in the fourth step, obtaining the direction vector of the seam edge and the direction vector of the long side direction of the unidirectional board. And shifting the joint edge along the long side direction and the Z-axis positive direction of the unidirectional plate to obtain a list of longitudinal reinforcing steel bar positioning lines at the joint of the unidirectional plate.
Step six: and shifting two starting points of the joint edge to two sides of the long edge direction of the one-way plate according to the geometric information of the joint of the short edge of the one-way plate in the fourth step, and connecting the shifted point positions of the two sides. And setting a horizontal reinforcing rib offset list to obtain a horizontal reinforcing rib reinforcing steel bar positioning line list at the joint of the unidirectional plate.
Step seven: and generating solid steel bar models of the longitudinal reinforcing ribs and the horizontal reinforcing ribs by utilizing Rebar. ByCurve nodes according to the longitudinal reinforcing rib steel bar positioning line list and the horizontal reinforcing rib steel bar positioning line list at the joint of the unidirectional plate obtained in the fifth step and the sixth step.
Step eight: and arranging a long and short steel bar positioning line on the bottom surface of the unidirectional plate.
Step nine: cast-in-place gluten in the long edge direction of one-way board and board junction does not break off, and end to end's reinforcing bar adopts a muscle to lead to long.
Step ten: the model of the gluten of the cast-in-place part is selected, the style of the steel bar is set as standard, the hook direction of the steel bar is set as right, and the direction of the steel bar is set as None. And generating a reinforcing steel bar solid model of the unidirectional plate cast-in-place part of gluten by utilizing the Rebar.
Compared with the prior art, the invention has the following characteristics and beneficial effects:
the method is operated on a visual programming plug-in Dynamo of mainstream BIM software Revit, intelligently calculates and analyzes data and judges a returned result through computer programming, and can quickly realize automatic arrangement of cast-in-place steel bars at joints of unidirectional plates and plates.
Compared with the existing method for arranging the cast-in-place reinforcing steel bars at the joints of the laminated slabs, the method has the advantages that the point positions of the reinforcing steel bars at the joints are automatically arranged by using the programming nodes, the parametric design of the reinforcing ribs and the cast-in-place part of the reinforcing ribs at the joints is realized by adopting the automatic generation mode of the reinforcing steel bars, and the method is closer to the requirements of actual production and statistics.
According to the invention, reasonable parameter setting is carried out on the reinforcing ribs and the gluten of the cast-in-place part on the basis of the reinforcing steel bars in the laminated slab according to the requirements of reinforcing steel bar arrangement of a reference drawing and the modeling habits of modeling personnel, so that accurate and efficient arrangement is realized.
Drawings
Fig. 1 is a general flow chart of the present invention.
Fig. 2 is a flow chart for obtaining the geometric parameters of the unidirectional plate.
Fig. 3 is a flow chart for obtaining the positioning lines of the bottom reinforcement steel bars in the long and short side directions.
Fig. 4 is a detailed flow chart of the process for obtaining a horizontal reinforcing bar positioning line at a joint.
Fig. 5 is a detailed flow chart of the process for obtaining the longitudinal reinforcing steel bar positioning line at the seam.
Detailed description of the invention
The model in the implementation process is built by using BIM modeling platform Revit software released by Autodesk company.
The invention content can be realized by a computer programming language, the design script language is used for programming in a Dynamo environment, and the construction steps are as follows:
the method comprises the following steps: a three-dimensional model of the beam panel frame is created.
Step two: and (4) selecting a model area needing to be laid with the steel bars in a frame mode, and screening out the floor slab model in the frame selection area.
1. All the beam and slab members selected in the beam-slab frame Model using Select Model Elements nodes.
2. The selected panel and beam members are screened for the "floor" category and the "structural frame" category to be handled.
Step three: and acquiring information of four edges of the lower surface of the floor slab, screening the unidirectional boards in all the floor slabs according to the discrimination conditions of the unidirectional boards and the bidirectional boards, and finally acquiring the geometric information of all the unidirectional board models.
1. And D, sequencing the areas of the six faces of the floor slab obtained in the step two from small to large, and screening the surfaces with the largest areas, namely the upper surface and the lower surface of the floor slab.
2. And extracting four edges of the lower surface of the floor slab, sequencing the lengths of the four edges from small to large, wherein the first group after sequencing is a short edge, and the last group is a long edge.
3. And (3) extracting the length of the long edge and the length of the short edge of the floor slab, giving the length of the long edge to a divisor X and the length of the short edge to a dividend Y by utilizing a division node, judging whether an output result is greater than 2 to obtain a Bool value list of False and True, matching the Bool list with a bottom surface list of the floor slab by utilizing a List.
Step four: and acquiring the short sides of all the unidirectional plates according to the geometric information of the four sides of the bottom surface of the unidirectional plate in the third step. And judging whether the acquired short edges of the unidirectional board have overlapped edges, namely crossed edges. And obtaining a list of the intersected short edges of all the unidirectional plates according to the screening condition, and finally obtaining the short edge joints of all the unidirectional plates according to all the intersected short edges.
1. And C, sorting the edges of the bottom surface of the unidirectional board obtained in the step three according to the length of the edges from small to large, and grouping the four sorted edges to obtain a list of long and short edges of the unidirectional board. Transposing the obtained list by using a List node, and taking the first item to obtain a short edge list of each one-way board.
2. In order to screen coincident edges, namely intersected edges, in the list of the short edges of the unidirectional board, the list of the short edges and the list of the short edges are cross-multiplied with each other to judge whether the edges are intersected or not, namely whether the number of 'true' in each intersection result is 2 or not is judged, namely whether the number of the intersected edges of each edge is 2 or not is judged. And obtaining a list ListA of all the intersecting edges on the bottom surface of the unidirectional board according to the screening condition.
3. The data structure of the List is not layered, that is, all the edges are not grouped, in order to obtain non-duplicated edges, the List group Key node is utilized, the middle points of the intersected edges are used as Key values, all the edges with the same middle points are grouped, and the first item of each group is the non-duplicated short edge seam of the unidirectional board.
Step five: and according to the geometric information of the short side seam of the unidirectional board in the fourth step, obtaining the direction vector of the seam edge and the direction vector of the long side direction of the unidirectional board. And shifting the joint edge along the long side direction and the Z-axis positive direction of the unidirectional plate to obtain a list of longitudinal reinforcing steel bar positioning lines at the joint of the unidirectional plate.
1. And acquiring the starting point and the end point of the joint edge.
2. And acquiring a direction vector of the seam edge.
3. And acquiring a normal vector of a tangent line at the midpoint of the joint edge, namely a direction vector of the long side direction of the unidirectional plate.
4. The seam edges were extended by a length of 100, 200 along the long side of the two sides, respectively.
5. And shifting the Line list by 70 along the positive direction of the Z axis to obtain a list of longitudinal reinforcing steel bar positioning lines at the joints of the unidirectional plates.
Step six: and shifting two starting points of the joint edge to two sides of the long edge direction of the one-way plate according to the geometric information of the joint of the short edge of the one-way plate in the fourth step, and connecting the shifted point positions of the two sides. And setting a horizontal reinforcing rib offset list to obtain a horizontal reinforcing rib reinforcing steel bar positioning line list at the joint of the unidirectional plate.
1. And offsetting the starting point of the joint edge to the two sides of the long side direction of the unidirectional plate by a distance of 600, and connecting the two points to obtain the initial offset positioning line of the horizontal reinforcing rib of the unidirectional plate.
2. And setting a starting rib position of the horizontal reinforcing rib.
3. And arranging the space between the horizontal reinforcing ribs and the reinforcing steel bars.
4. And taking the position of the horizontal reinforcing rib starting rib as a first item, taking the length of the long edge of the one-way plate as the total length, and taking the interval of the horizontal reinforcing rib reinforcing ribs as a tolerance to obtain an arithmetic progression offset distance list of the horizontal reinforcing ribs.
5. And taking the list of the offset distances of the equal difference series of the horizontal reinforcing ribs as the offset length, taking the direction vector of the joint edge as the offset direction for offset, and offsetting the Line list by 60 distances along the positive direction of the Z axis to obtain the list of the positioning lines of the reinforcing steel bars of the horizontal reinforcing ribs at the joints of the unidirectional plates.
Step seven: and generating solid steel bar models of the longitudinal reinforcing ribs and the horizontal reinforcing ribs by utilizing Rebar. ByCurve nodes according to the longitudinal reinforcing rib steel bar positioning line list and the horizontal reinforcing rib steel bar positioning line list at the joint of the unidirectional plate obtained in the fifth step and the sixth step.
Step eight: and arranging a long and short steel bar positioning line on the bottom surface of the unidirectional plate.
1. And sorting the edges of all the unidirectional plates in the third step from small to large according to the lengths, and transposing the list to obtain four groups of edge lists, wherein the first group is a unidirectional plate short edge ListA, the second group is a short edge ListB, the third group is a unidirectional plate long edge ListC, and the fourth group is a unidirectional plate long edge ListD.
2. Carrying out array offset on ListA, respectively intersecting ListA and ListB with ListC, inputting the two groups of intersection points by using vector.
3. And obtaining the bottom surface positioning line of the long-direction bottom rib of the unidirectional plate in the same way. And respectively shifting the short-direction reinforcing steel bars and the long-direction reinforcing steel bars of the one-way plate to the positive direction of the Z axis by the parameters of 'distance between the bottom bar and the bottom of the plate' 15 and 25 to obtain the reinforcing steel bar positioning lines of the short-direction reinforcing steel bars and the long-direction reinforcing steel bars of the one-way plate.
Step nine: cast-in-place gluten in the long edge direction of one-way board and board junction does not break off, and end to end's reinforcing bar adopts a muscle to lead to long.
1. And (4) connecting the reinforcing steel bars connected end to end in the long-direction reinforcing steel bar curve list in the step eight into a multi-section line by using a Curve, Superjoin, ArchLab node.
2. And shifting the processed multiple sections of lines by a distance of 93 along the positive direction of the Z axis to obtain the one-way plate cast-in-place part gluten.
Step ten: the model of the gluten of the cast-in-place part is selected, the style of the steel bar is set as standard, the hook direction of the steel bar is set as right, and the direction of the steel bar is set as None. And generating a reinforcing steel bar solid model of the unidirectional plate cast-in-place part of gluten by utilizing the Rebar.
The calculation and judgment in all the steps are realized by using a design script language and calling related functions in an application programming interface of BIM modeling platform Revit software released by Autodesk.
The invention can be suitable for the arrangement of the reinforcing steel bars at the joint parts of the unidirectional plates with all sizes, and is not limited to the length, width and height of the laminated slab. Meanwhile, the diameter of the steel bars, the arrangement distance of the steel bars, the number of the steel bars, the type of the hooks, the arrangement position of the steel bars and the thickness of the protective layer are all adjustable parameters. The program operation result is beautiful and accurate. The deepened application of the laminated plate steel bar provides a model foundation.
The foregoing merely represents preferred embodiments of the invention, which are described in some detail and detail, and therefore should not be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, various changes, modifications and substitutions can be made without departing from the spirit of the present invention, and these are all within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (1)
1. The automatic arrangement method for the cast-in-place steel bars in the one-way superimposed slab close-spliced seam connection is characterized by comprising the following steps of:
the method comprises the following steps: creating a three-dimensional model of the beam-slab frame;
step two: selecting a model area needing to be laid with steel bars in a frame mode, and screening out a floor slab model in the selected area;
step three: acquiring information of four edges of the lower surface of the floor slab, screening out the unidirectional boards in all the floor slabs according to the discrimination conditions of the unidirectional boards and the bidirectional boards, and finally obtaining the geometric information of all the unidirectional board models;
step four: acquiring the short sides of all the unidirectional plates according to the geometric information of the four sides of the bottom surface of the unidirectional plate in the third step; judging whether the acquired short edges of the unidirectional board have overlapped edges, namely crossed edges; obtaining a list of intersected short edges of all the unidirectional plates according to the screening condition, and finally obtaining short edge joints of all the unidirectional plates according to all the intersected short edges;
step five: according to the geometric information of the short side joint of the unidirectional board in the fourth step, a direction vector of the joint side and a direction vector of the long side direction of the unidirectional board are obtained; shifting the edges of the seams along the long side direction and the positive direction of the Z axis of the unidirectional plate to obtain a list of longitudinal reinforcing steel bar positioning lines at the seams of the unidirectional plate;
step six: according to the geometric information of the short side joint of the unidirectional board in the fourth step, two starting points of the joint side are shifted to two sides of the long side direction of the unidirectional board, and the shift points on the two sides are connected; setting a horizontal reinforcing rib offset list to obtain a horizontal reinforcing rib reinforcing steel bar positioning line list at the joint of the unidirectional plate;
step seven: generating solid steel bar models of the longitudinal reinforcing ribs and the horizontal reinforcing ribs by utilizing Rebar. ByCurve nodes according to the longitudinal reinforcing rib steel bar positioning line list and the horizontal reinforcing rib steel bar positioning line list at the joint of the unidirectional plate obtained in the fifth step and the sixth step;
step eight: arranging a long and short steel bar positioning line on the bottom surface of the unidirectional plate;
step nine: the cast-in-place gluten in the long edge direction of the joint of the unidirectional slab and the slab is not broken, and the reinforcing steel bars connected end to end are all through long by one bar;
step ten: selecting the model of the gluten of the cast-in-place part, setting the style of the steel bar as standard, the hook direction of the steel bar as right and the direction of the steel bar as None; and generating a reinforcing steel bar solid model of the unidirectional plate cast-in-place part of gluten by utilizing the Rebar.
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Inventor after: Lv Jing Inventor after: Hou Yanghan Inventor after: Wheat Group Inventor after: Zeng Xianhui Inventor after: Jia Lu Inventor after: Zeng Sizhi Inventor after: Zhi Qing Inventor after: Huang Lei Inventor after: Qin Song Inventor after: Dai Longpei Inventor after: Luo Xiaodong Inventor after: Zhang Qianwen Inventor before: Jia Lu Inventor before: Hou Yanghan Inventor before: Wheat Group Inventor before: Lv Jing Inventor before: Zhiqing Inventor before: Zeng Sizhi Inventor before: Huang Lei Inventor before: Qin Song Inventor before: Dai Longpei Inventor before: Luo Xiaodong Inventor before: Zhang Qianwen |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |