Bent frame vertical rod arrangement method
By using a benchmark modular system and standardized grid generation method, combined with the structural characteristics of beams and slabs, the position of the uprights is determined, solving the problems of standardization and precision in the traditional scaffolding upright arrangement, and improving construction safety and economy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANGHAI CONSTRUCTION GROUP CO LTD
- Filing Date
- 2025-12-17
- Publication Date
- 2026-05-08
AI Technical Summary
The traditional scaffolding pole layout lacks standardization and precision, leading to material waste and safety hazards. Existing software cannot refine the design of beam components, making it difficult to achieve a balance between safety and economy.
By adopting a benchmark modular system and a standardized grid generation method, and combining the structural characteristics of beams and slabs, the position of the poles is determined through point sampling, and supplementary poles are added when necessary, forming a standardized and precise pole arrangement scheme.
It achieves standardization and efficiency in pole placement, reduces material waste, improves construction safety and design efficiency, avoids rework and safety hazards, and realizes dual control over construction costs and safety risks.
Smart Images
Figure CN121997408A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the technical field of building construction formwork support system, and specifically relates to a method for arranging scaffold uprights. Background Technology
[0002] In construction engineering, the erection of scaffolding is a crucial step in ensuring construction safety and quality. While traditional scaffolding pole layout is usually based on the construction plan, in actual construction, it still largely relies on woodwork drafting and the experience of the work teams for on-site adjustments. This approach has the following main shortcomings:
[0003] First, the level of standardization is low. While the flexibility of on-site layout adapts to actual changes, it also leads to variations in specific adjustments based on individual and team experience, making it difficult to establish unified construction standards and posing challenges to standardized management and accurate estimation of material usage.
[0004] Secondly, it can easily lead to material waste. Relying on experience-based judgment in layout can easily result in unreasonable and dense arrangements, causing the use of materials such as poles, steel pipes, and fasteners to exceed actual needs, thus increasing project costs.
[0005] Existing scaffolding quantity calculation software lacks specificity in the arrangement of uprights. For example, when dealing with beam components, the software often fails to perform refined design based on the beam's cross-sectional dimensions, instead generally adopting a "uniform beam-slab" arrangement. This "one-size-fits-all" approach makes it difficult to strike a balance between safety and economy. Insufficient support may lead to safety hazards, while excessive support directly results in material waste and increased costs. Summary of the Invention
[0006] This invention provides a method for arranging uprights on a frame, achieving standardization, efficiency, and precision in upright arrangement, and providing technical support for construction.
[0007] The technical solution of the present invention is as follows:
[0008] A method for arranging uprights on a frame includes the following steps:
[0009] S1: Set a reference module system. Set a single reference module for plate structures and set dual reference modules in the length and width directions for beam structures.
[0010] S2: Standardized mesh generation: Based on the aforementioned benchmark modular system, a fully covered standardized mesh is generated in the under-slab support area and the bottom beam support area, respectively.
[0011] S3: Underboard pole sampling and arrangement: Based on the preset target spacing of the underboard poles, the first sampling operation is performed on the nodes of the standardized grid under the board to determine the arrangement position of the underboard poles;
[0012] S4: The arrangement of uprights at the bottom of the beam is determined by sampling points. The number of rows of uprights is determined based on the width characteristics of the beam, and the upright spacing type is determined by combining the cross-sectional characteristics of the beam. The second sampling operation is performed on the nodes of the standardized grid at the bottom of the beam to determine the arrangement position of the uprights at the bottom of the beam.
[0013] S5: Upright arrangement integration. The arrangement positions of the uprights under the slab and the uprights at the bottom of the beam are integrated. The distance between the uprights under the slab and the uprights at the bottom of the beam is checked. If the distance exceeds the preset threshold, supplementary uprights are added in the area where the distance exceeds the limit to form the final upright arrangement scheme of the frame.
[0014] Furthermore, in the aforementioned method for arranging the uprights of the scaffold, the module value of the reference module system in step S1 is a commonly used construction module, and it meets the requirements for dense grid arrangement; and / or,
[0015] The standardized grid in step S2 is a rectangular grid.
[0016] Furthermore, in the method for arranging the uprights of the frame, in step S2, the side length of the standardized grid under the slab is consistent with the reference module of the slab structure, the longitudinal side length of the standardized grid at the bottom of the beam is consistent with the longitudinal reference module of the beam, and the lateral side length is consistent with the lateral reference module of the beam. The grid nodes are marked according to row and column rules, and the first row and first column nodes are located at the corner positions of the corresponding support areas.
[0017] Furthermore, in the method for arranging uprights of the frame, in step S3, the preset target spacing of the uprights under the board includes the boundary distance from the edge of the board to the first upright and the spacing of the uprights in the middle of the board. The first sampling operation is based on the adaptation relationship between the target spacing and the reference module of the board structure to determine the number of sampling points at the edge, the number of cyclic sampling points in the middle, and the rules for selecting and discarding edge points.
[0018] Furthermore, in the aforementioned method for arranging the uprights of the frame, the adaptation relationship includes integer and non-integer divisibility relationships between the target spacing and the reference module of the plate structure;
[0019] Under the divisibility relation, the number of sampling points at the edge is the ratio of the boundary distance to the reference modulus, and the number of sampling points in the middle is the ratio of the middle spacing to the reference modulus minus 1.
[0020] Under non-divisible relations, the number of points sampled at the edges and the number of points sampled in the middle are adjusted according to the rounding down rule.
[0021] Furthermore, in the method for arranging the uprights of the frame, in step S4, the number of uprights corresponding to the width characteristics of the beam includes a single upright arrangement mode and a double upright arrangement mode. When the beam width is less than a preset width threshold, the single upright arrangement mode is adopted, and when the beam width is not less than the preset width threshold, the double upright arrangement mode is adopted.
[0022] Furthermore, in the aforementioned method for arranging the uprights of the frame, the cross-sectional characteristics of the beam include the cross-sectional area and the height-to-width ratio of the beam;
[0023] In the single-pole layout mode, based on the combined determination results of cross-sectional area and aspect ratio, either sparse spacing or dense spacing is adopted accordingly.
[0024] In the double-pole arrangement mode, a sparse spacing is adopted based on the determination result of cross-sectional area.
[0025] Furthermore, in the aforementioned method for arranging uprights, in the single upright arrangement mode, when the cross-sectional area is less than the first cross-sectional area threshold and the aspect ratio is less than the preset aspect ratio threshold, a sparse spacing is adopted; when the cross-sectional area is greater than the second cross-sectional area threshold, less than the first cross-sectional area threshold, and the aspect ratio is not less than the preset aspect ratio threshold, a dense spacing is adopted, wherein the second cross-sectional area threshold is less than the first cross-sectional area threshold.
[0026] In the double-pole arrangement mode, a sparse spacing is adopted when the cross-sectional area is not less than the first cross-sectional area threshold, and the arrangement position of the double poles is symmetrically set with the central area of the beam width as the reference, and the spacing between the two rows of poles is adapted to the stress distribution of the beam.
[0027] Furthermore, in the aforementioned method for arranging uprights, the position of the uprights in the single-upright arrangement mode is determined by selecting the grid nodes in the central region of the beam width direction; when the number of grid node rows in the beam width direction is odd, the middle ordinal row is selected; when it is even, the first row of the two middle ordinal rows is selected based on the stress concentration characteristics of the beam.
[0028] Furthermore, in the aforementioned method for arranging the uprights of the frame, the arrangement position of the supplementary uprights is determined based on the midpoint region of the excessive spacing, and the distance between the supplementary uprights and the adjacent original uprights does not exceed the preset threshold.
[0029] The beneficial effects of this invention are as follows:
[0030] The present invention provides a method for arranging uprights on a frame. By establishing a unified benchmark module system and standardized grid generation rules, the arrangement of uprights is transformed into a replicable and quantifiable point sampling process. The point sampling rules are clearly defined down to the point number and quantity calculation, completely eliminating the reliance on experience and ensuring the consistency and standardization of upright arrangement in different scenarios.
[0031] This method of scaffolding pole arrangement is designed with differentiated solutions for the differences between slab and beam structures. The arrangement of poles at the bottom of the beam fully combines the core characteristic parameters such as beam width, cross-sectional area, and height-to-width ratio. The single / double pole mode switching and spacing classification rules are precisely matched to the structural stress characteristics, which greatly improves the support stability and construction safety.
[0032] The core logic of this scaffolding pole layout method is "module setting - grid generation - feature adaptation - point sampling layout". The point sampling rules, point calculation, and row number selection all have clear quantitative standards, which can be directly converted into algorithms and embedded into various construction design software or BIM systems to realize the digital automatic generation of pole layout, significantly improving design and construction efficiency.
[0033] This method of scaffolding pole arrangement, through precise spacing and row number design, avoids material waste while ensuring support safety, and reduces rework and safety hazards caused by unreasonable arrangement, thus achieving dual control over construction costs and safety risks. Attached Figure Description
[0034] Figure 1 This is a flowchart of a method for arranging uprights for a frame according to the present invention;
[0035] Figure 2 This is a schematic diagram of the under-slab upright arrangement method of the frame upright arrangement according to the present invention;
[0036] Figure 3 This is a schematic diagram of the beam bottom upright arrangement method of the frame upright arrangement method of the present invention. Detailed Implementation
[0037] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.
[0038] like Figure 1 As shown, this embodiment provides a method for arranging the uprights of a frame, including the following steps: S1-S5.
[0039] S1: Establish a reference module system. A single reference module is set for slab structures, while dual reference modules (length and width) are set for beam structures. The module values for the reference module system are commonly used construction modules and meet the requirements for dense grid layout. The reference module D for slab structures is 30mm, and for beam structures, the beam length reference module D1 is 400mm, and the beam width reference module D2 is 50mm.
[0040] Step S1 sets a dedicated benchmark module for the plate beam adaptation, providing a unified and accurate core benchmark for subsequent standardized layout and ensuring process continuity.
[0041] S2: Standardized mesh generation. Based on the aforementioned reference module system, a fully covered standardized mesh is generated in both the under-slab support area and the bottom beam support area. The standardized mesh is a rectangular mesh. The side length of the under-slab standardized mesh is consistent with the reference module of the slab structure, and the longitudinal side length of the bottom beam standardized mesh is consistent with the longitudinal reference module of the beam, while the lateral side length is consistent with the lateral reference module of the beam.
[0042] Standardized grid generation under the slab: For a rectangular floor slab with a span of L1mm × L2mm, a bottom projection grid is established. Points are distributed along the length of the slab using a module of D = 30mm, generating virtual points. The number of points in each row is m = L1 / D (rounding up if the result is not an integer). The points are labeled as follows: first row S11, S12, ..., S1m; second row S21, S22, ..., S2m; and so on. The first row of points is arranged from the length of the slab towards the edge, with S11 located at a corner. Points are also distributed along the width of the slab using a module of D = 30mm, generating virtual points. The number of points in each column is n = L2 / D (rounding up if the result is not an integer). The points are labeled as follows: first column S11, S21, ..., Sn1; second column S12, S22, ..., Sn2; and so on. The first column of points is arranged from the width of the slab towards the edge, with S11 located at a corner. All virtual points form a dense modular grid.
[0043] Standardized mesh generation for beam bottom: For a beam with length Lmm, cross-sectional width Bmm, and cross-sectional height Hmm, a bottom projection mesh is established. Points are distributed along the beam length using a module of D1 = 400mm, generating virtual points. The number of points per row is m = L / D1 (rounding up for non-integer results). The points are sequentially labeled: first row S11, S12, ..., S1m; second row S21, S22, ..., S2m; and so on. The first row of points starts from the edge along the beam length, with S11 located at a corner point. Points are distributed along the beam width using a module of D2 = 50mm, generating virtual points. The number of points per column is n = B / D2 (rounding up for non-integer results). The points are sequentially labeled: first column S11, S21, ..., Sn1; second column S12, S22, ..., Sn2; and so on. The first row of points is arranged from the beam width towards the edge, with S11 located at the corner point. All virtual points form a dense bimodal grid.
[0044] Step S2 generates a uniform, standardized grid that fits the projection of the beam, clarifies the point markings and quantity rules, and lays a precise and sufficient point foundation for the sampling operation.
[0045] S3: Layout of support poles under the slab (e.g.) Figure 2As shown, based on the preset target spacing of the under-slab uprights, a first sampling operation is performed on the nodes of the standardized grid under the slab to determine the arrangement position of the under-slab uprights. The preset target spacing of the under-slab uprights includes the boundary distance A from the edge of the slab to the first upright and the spacing B between the uprights in the middle of the slab. The first sampling operation is based on the adaptation relationship between the target spacing and the slab structure reference module to determine the number of sampling points at the edges, the number of cyclic sampling points in the middle, and the rules for selecting edge points.
[0046] The first sampling operation steps are as follows: S31-S32.
[0047] S31 Point Removal Calculation: Calculate the number of points K to be removed based on A and B, considering two cases:
[0048] If A / D and B / D are integers, then the number of edge sampling points K A =A / D, number of sampling points in the middle K B = (B / D) - 1.
[0049] If A / D and B / D are not integers, then round down the number of points K, and extract the number of points K from the edge. A = (A / D)-1, the number of sampling points in the middle KB = (B / D)-2.
[0050] S32 First Sampling Operation Rules:
[0051] Edge sampling point: K of the edge A From +1 virtual points, remove points 1 through K. A Point K, retain the Kth point. A +1 point;
[0052] Central sampling point: K in the middle B Of the two virtual points, keep the first point and remove the second to the first. B +1 point, retain the Kth point. B Add 2 points and execute in a loop.
[0053] Specific arrangement: In the first row from S11 to S1m, remove S11 to S1K. A Retain S1(K) A +1); then remove S1(K) A +2)~S1(K A +K B +1), retain S1(K) A +K B +2), repeat this cycle; finally remove the last position S1m, and perform the same rules on the remaining rows.
[0054] In step S3, points are sampled according to different scenarios, and the spacing and distribution of the uprights under the board are precisely controlled through combination rules to ensure uniform force and simplify operation.
[0055] S4: Arrangement of vertical supports at the bottom of the beam (e.g.) Figure 3 As shown, the number of uprights is determined based on the beam's width characteristics, and the upright spacing type is determined by combining this with the beam's cross-sectional characteristics. A second sampling operation is performed on the nodes of the standardized grid at the bottom of the beam to determine the upright placement positions. The upright number patterns corresponding to the beam's width characteristics include single-upright and double-upright arrangements. When the beam width is less than a preset width threshold (e.g., 400mm), a single-upright arrangement is used; when the beam width is not less than the preset width threshold (e.g., 400mm), a double-upright arrangement is used. The beam's cross-sectional characteristics include its cross-sectional area and aspect ratio.
[0056] In the single-pole layout mode, based on the combined determination result of cross-sectional area and aspect ratio, either sparse or dense spacing is adopted. When the cross-sectional area is less than the first cross-sectional area threshold and the aspect ratio is less than the preset aspect ratio threshold (e.g., 4:1), sparse spacing is adopted; when the cross-sectional area is greater than the second cross-sectional area threshold, less than the first cross-sectional area threshold, and the aspect ratio is not less than the preset aspect ratio threshold, dense spacing is adopted, where the second cross-sectional area threshold (e.g., 0.35㎡) is less than the first cross-sectional area threshold (e.g., 0.42㎡). The pole arrangement position in the single-pole layout mode is determined by selecting the grid nodes in the central region of the beam width direction; when the number of grid node rows in the beam width direction is odd, the middle ordinal row is selected; when it is even, the first row of the two middle ordinal rows is selected based on the stress concentration characteristics of the beam.
[0057] In the double-upper-pole arrangement mode, a sparse spacing is adopted based on the cross-sectional area determination result. A sparse spacing is adopted when the cross-sectional area is not less than the first cross-sectional area threshold, and the arrangement position of the double-upper-pole is symmetrically set with the central area of the beam width as the reference, and the spacing between the two rows of uprights is adapted to the stress distribution of the beam.
[0058] The specific steps are as follows: S41-S44.
[0059] The S41 upright arrangement pattern is determined as follows: if the beam width B < 400mm, a single upright arrangement pattern is adopted (i.e., one upright is arranged longitudinally in the middle of the beam width direction); if the beam width B ≥ 400mm, a double upright arrangement pattern is adopted (i.e., two uprights are arranged symmetrically along the longitudinal centerline in the middle of the beam width direction).
[0060] S42 Center Row Selection Rules:
[0061] In the single-pole arrangement mode, when the number of beam width points n is odd, the middle ordinal row is selected as the center row; when n is even, the row before the two middle ordinal rows is selected as the center row. The center row is denoted as row X.
[0062] In the double-pole arrangement, the target rows are determined by taking the central row X as the reference, with a spacing of 5 rows on each side (i.e., a spacing of 6 × 50 mm = 300 mm), namely the (X-6)th row and the (X+6)th row.
[0063] S43 Pole Spacing and Second Draw Point Operation Rules:
[0064] Single pole arrangement mode:
[0065] If the cross-sectional area of the beam B×H < 0.42㎡ and the height-to-width ratio H / B < 4:1, a sparse spacing is adopted. The point removal rule is "remove SX1, keep SX2, remove SX3, keep SX4...", and the actual pole spacing is 800mm. At the same time, points in all rows except row X are removed.
[0066] If the beam's cross-sectional area is 0.35㎡ < B×H < 0.42㎡ and the height-to-width ratio H / B ≥ 4:1, a denser spacing is adopted. The point removal rule is: retain all virtual points in row X (SX1 to SXm), with an actual pole spacing of 400mm, and remove points from all other rows except row X.
[0067] Double pole arrangement mode:
[0068] When the cross-sectional area of the beam B×H ≥ 0.42㎡, a double-pole arrangement is adopted. In rows (X-6) and (X+6), points are removed according to the rule of "removing the first point of the row, keeping the second point, removing the third point, keeping the fourth point, etc." The actual pole spacing is 800mm. At the same time, all points in all rows except those in rows (X-6) and (X+6) are removed.
[0069] S44 boundary requirement: The horizontal distance between the center of the pole and the side of the beam shall be kept within the preset range.
[0070] Step S4 determines the number of rows and spacing of uprights based on the beam width, cross-sectional area, and height-to-width ratio, adapting to different beam stress requirements and improving support stability and economy.
[0071] S5: Upright Layout Integration. The positions of the uprights under the slab and the uprights at the bottom of the beam are integrated. The distance between the uprights under the slab and the uprights at the bottom of the beam is checked. If the distance exceeds a preset threshold (e.g., 800mm), supplementary uprights are added in the area where the distance exceeds the limit, forming the final upright layout scheme. The placement of the supplementary uprights is determined based on the midpoint area of the area where the distance exceeds the limit, and the distance between the supplementary uprights and the adjacent original uprights does not exceed the preset threshold.
[0072] Step S5 controls the maximum spacing of the slab beam uprights and adds supplementary uprights as needed to solve the problem of exceeding the limit in the connection area, ensuring the continuity, integrity and overall stability of the support system.
[0073] The above method, by establishing a standardized modular system and sampling rules adapted to structural characteristics, achieves standardization, precision, and efficiency in pole layout, providing technical support for digital construction. At the same time, it can adapt to different spacing requirements, improve design efficiency, and ensure construction safety.
[0074] The above description is merely a description of preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.
Claims
1. A method for arranging uprights of a frame, characterized in that, Includes the following steps: S1: Set a reference module system. Set a single reference module for plate structures and set dual reference modules in the length and width directions for beam structures. S2: Standardized mesh generation: Based on the aforementioned benchmark modular system, a fully covered standardized mesh is generated in the under-slab support area and the bottom beam support area, respectively. S3: Underboard pole sampling and arrangement: Based on the preset target spacing of the underboard poles, the first sampling operation is performed on the nodes of the standardized grid under the board to determine the arrangement position of the underboard poles; S4: The arrangement of uprights at the bottom of the beam is determined by sampling points. The number of rows of uprights is determined based on the width characteristics of the beam, and the upright spacing type is determined by combining the cross-sectional characteristics of the beam. The second sampling operation is performed on the nodes of the standardized grid at the bottom of the beam to determine the arrangement position of the uprights at the bottom of the beam. S5: Upright arrangement integration. The arrangement positions of the uprights under the slab and the uprights at the bottom of the beam are integrated. The distance between the uprights under the slab and the uprights at the bottom of the beam is checked. If the distance exceeds the preset threshold, supplementary uprights are added in the area where the distance exceeds the limit to form the final upright arrangement scheme of the frame.
2. The method for arranging uprights of a frame as described in claim 1, characterized in that, The module value of the reference module system in step S1 is a commonly used construction module, and it meets the requirements for dense grid layout; and / or, The standardized grid in step S2 is a rectangular grid.
3. The method for arranging uprights of a frame as described in claim 1, characterized in that, In step S2, the side length of the standardized grid under the slab is consistent with the slab structure reference module, the longitudinal side length of the standardized grid at the bottom of the beam is consistent with the longitudinal reference module of the beam, and the lateral side length is consistent with the lateral reference module of the beam. The grid nodes are marked according to row and column rules, and the first row and first column nodes are located at the corner positions of the corresponding support areas.
4. The method for arranging uprights of a frame as described in claim 1, characterized in that, In step S3, the preset target spacing of the uprights under the board includes the boundary distance from the edge of the board to the first upright and the spacing of the uprights in the middle of the board. The first sampling operation is based on the adaptation relationship between the target spacing and the reference module of the board structure to determine the number of sampling points at the edge, the number of cyclic sampling points in the middle, and the rules for selecting edge points.
5. The method for arranging uprights of a frame as described in claim 4, characterized in that, The adaptation relationship includes integer and non-integer divisibility relationships between the target spacing and the reference modulus of the plate structure; Under the divisibility relation, the number of sampling points at the edge is the ratio of the boundary distance to the reference modulus, and the number of sampling points in the middle is the ratio of the middle spacing to the reference modulus minus 1. Under non-divisible relations, the number of points sampled at the edges and the number of points sampled in the middle are adjusted according to the rounding down rule.
6. The method for arranging uprights of a frame as described in claim 1, characterized in that, In step S4, the pole arrangement pattern corresponding to the beam width characteristics includes a single pole arrangement pattern and a double pole arrangement pattern. When the beam width is less than the preset width threshold, the single pole arrangement pattern is adopted, and when the beam width is not less than the preset width threshold, the double pole arrangement pattern is adopted.
7. The method for arranging uprights of a frame as described in claim 6, characterized in that, The cross-sectional characteristics of the beam include its cross-sectional area and aspect ratio; In the single-pole layout mode, based on the combined determination results of cross-sectional area and aspect ratio, either sparse spacing or dense spacing is adopted accordingly. In the double-pole arrangement mode, a sparse spacing is adopted based on the determination result of cross-sectional area.
8. The method for arranging uprights of a frame as described in claim 7, characterized in that, In the single-pole arrangement mode, when the cross-sectional area is less than the first cross-sectional area threshold and the aspect ratio is less than the preset aspect ratio threshold, a sparse spacing is adopted. When the cross-sectional area is greater than the second cross-sectional area threshold, less than the first cross-sectional area threshold, and the aspect ratio is not less than the preset aspect ratio threshold, the spacing is encrypted, and the second cross-sectional area threshold is less than the first cross-sectional area threshold. In the double-pole arrangement mode, a sparse spacing is adopted when the cross-sectional area is not less than the first cross-sectional area threshold, and the arrangement position of the double poles is symmetrically set with the central area of the beam width as the reference, and the spacing between the two rows of poles is adapted to the stress distribution of the beam.
9. The method for arranging uprights of a frame as described in claim 8, characterized in that, The position of the uprights in the single-upright arrangement mode is determined by selecting the grid nodes in the central area of the beam width. When the number of grid node rows in the beam width direction is odd, the middle ordinal row is selected; when it is even, the first row of the two middle ordinal rows is selected based on the stress concentration characteristics of the beam.
10. The method for arranging uprights of a frame as described in claim 1, characterized in that, The placement of the supplementary poles is determined based on the midpoint region of the excessive spacing, and the distance between the supplementary poles and the adjacent original poles does not exceed the preset threshold.