CN-122023579-A - Two-dimensional automatic splitting method and related device for composite floor slab

CN122023579ACN 122023579 ACN122023579 ACN 122023579ACN-122023579-A

Abstract

The application provides a two-dimensional automatic splitting method and a related device for a composite floor slab, which realize the full-process automation of two-dimensional splitting of the floor slab, extract contour features, judge splitting directions, calculate splitting parameters and execute splitting without manual intervention drawing and size accounting, change the low-efficiency current situation of manually splitting a single conventional rectangular floor slab, greatly improve the design efficiency of batch splitting of conventional floor slabs and heterogeneous floor slabs, and meet the requirement of quick drawing. Meanwhile, the equation is realized based on a two-dimensional CAD environment, does not need to rely on three-dimensional model conversion, conforms to the original working habit of a user, and further simplifies the work flow of floor slab splitting.

Inventors

LIU TONG
DING JIE
JIN WEI
LI ZONGZHANG
ZHOU LIREN

Assignees

旭杰科技(苏州)股份有限公司

Dates

Publication Date: 20260512
Application Date: 20251231

Claims (10)

1. The two-dimensional automatic splitting method for the composite floor slab is characterized by comprising the following steps of: Step 1, extracting outline characteristics, namely extracting all vertex coordinates of a target floor outline multi-section line; step 2, judging the splitting direction, namely taking the coordinate axis direction corresponding to the larger value as the splitting direction of the floor slab according to the maximum difference value of the vertex coordinates in different coordinate axis directions of the coordinate system; Step 5, calculating splitting parameters, namely calculating splitting quantity and actual plate width according to a maximum difference value of vertex coordinates in a splitting direction, a preset maximum allowable width B _DHB_max of the laminated slab and a minimum width B _HJD_min of the post-pouring joint; step 6, splitting is carried out, namely auxiliary lines are made along the direction perpendicular to the splitting direction according to the determined splitting direction and the actual plate width, the intersection points of the auxiliary lines and the floor slab outline are connected end to end in sequence, and closed multi-section lines of each independent superimposed sheet and post-pouring joint are generated to finish splitting; and 7, expressing the independent superimposed sheet and the post-cast joint in different modes in a two-dimensional view.
2. The two-dimensional automatic splitting method of the composite floor slab according to claim 1, wherein the step 5 comprises the steps of calculating theoretical splitting quantity n according to n= (delta L+B _HJD_min )/(B _DHB_max +B _HJD_min ), and carrying out upward rounding on n to obtain n Finishing the whole , wherein delta L is the maximum difference value of vertex coordinates in the splitting direction; according to B _DHB =[ΔL-(n Finishing the whole -1)×B _HJD_min ]/ n Finishing the whole , the actual panel width is calculated.
3. The two-dimensional automatic splitting method for composite floor slabs according to claim 2, wherein in step 5, if the actual slab width is not an integer, the minimum post-cast joint width B _HJD_min is incremented by a fixed step length to obtain the actual post-cast joint width B _HJD , the actual slab width is taken into B _DHB =[ΔL-(n Finishing the whole -1)×B _HJD ]/ n Finishing the whole , and the actual slab width is recalculated until the actual slab width is an integer or the upper limit of the increment times is reached.
4. A two-dimensional automatic splitting method for a composite floor slab according to claim 3, wherein in the step 6, auxiliary lines are made along the direction perpendicular to the splitting direction according to the determined splitting direction and the actual slab width, specifically, along the determined splitting direction, m x B _DHB +(m-1)×B _HJD and m x B _DHB +m×B _HJD are sequentially shifted from the minimum coordinate point in the splitting direction as a starting point, and the auxiliary lines perpendicular to the splitting direction and passing through the contour of the floor slab are made, wherein m is a slab serial number, and the number is increased from 1 to n Finishing the whole -1.
5. The two-dimensional automatic splitting method of composite floor slab according to claim 1, further comprising step 3, after step 2, of judging whether the target floor slab is a conventional floor slab or a special-shaped floor slab, comprising: Step 3.1, identifying pits, namely traversing all vertexes of a floor contour line according to a set direction, connecting each vertex with a previous vertex and a next vertex to form two vectors, and judging the pits if the rotation direction of the two vectors is opposite to the set direction and the vector length is larger than a set threshold value; and 3.2, judging the floor type, namely judging that the target floor is a conventional floor if pits are not present in the vertexes of the floor contour lines, entering step 5, judging that the target floor is a special-shaped floor if pits are present, and entering a special-shaped floor splitting flow, wherein the special-shaped floor splitting flow comprises the following steps: Step 4.2, sub-block division, namely taking a temporary auxiliary line perpendicular to the splitting direction as a concave passing point, taking two intersection point connecting lines which are farthest from the floor contour line on each auxiliary line as block lines, taking the floor contour line and the block lines as the basis, generating a closed multi-section line through an automatic face constructing algorithm, and dividing the floor into a plurality of sub-blocks; Step 4.4, preliminary splitting, namely comparing the lengths of common overlapping edges of adjacent sub-blocks, backing the edge with smaller length to the inner part of the corresponding sub-block by one post-pouring joint width, and drawing a closed multi-section line in a backing area to serve as the post-pouring joint between the two sub-blocks; And 4.5, performing secondary splitting, namely performing splitting parameter calculation and subsequent splitting flow on each sub-block in the step 5 until splitting of all sub-blocks is completed.
6. The two-dimensional automatic splitting method of composite floor slab according to claim 5, wherein in the splitting process of the special-shaped floor slab, before step 4.2, the method further comprises: And 4.1, pit optimization, namely storing the identified pits into a candidate list, sequencing the pits in the candidate list according to the splitting direction coordinates, and removing the points with the same coordinate values.
7. The two-dimensional automatic splitting method of composite floor slab according to claim 5, wherein in the splitting process of the special-shaped floor slab, before step 4.4, the method further comprises: Step 4.3, special sub-block processing, including: If the number of the effective vertexes of the sub-blocks is 3, eliminating the sub-blocks; If the width of the sub-block in the splitting direction is smaller than the set threshold value and larger than the width of the post-pouring joint, the sub-block is directly designated as the post-pouring joint; If the width of the sub-block in the splitting direction is smaller than the width of the post-pouring joint and is a middle sub-block, comparing the lengths of the common overlapped sides of the sub-block and the two side sub-blocks, and backing the adjacent sub-block corresponding to the side with smaller length to the inside of the sub-block, wherein the backing area and the middle sub-block are combined to form the post-pouring joint.
8. Two-dimensional automatic split device of coincide floor, characterized in that includes: the profile feature extraction module is configured to be capable of extracting all vertex coordinates of the target floor profile multi-section line; The splitting direction judging module is configured to take the coordinate axis direction corresponding to the coordinate system with larger value as the floor splitting direction according to the maximum difference value of the vertex coordinates in different coordinate axis directions of the coordinate system; The splitting parameter calculation module is configured to be capable of splitting parameter calculation, and calculates splitting quantity and actual plate width according to a maximum difference value of vertex coordinates in a splitting direction, a preset maximum allowable width B _DHB_max of the superimposed sheet and a minimum width B _HJD_min of the post-pouring joint; The execution splitting module is configured to be capable of taking an auxiliary line along the direction perpendicular to the splitting direction according to the determined splitting direction and the actual plate width, connecting the intersection points of the auxiliary line and the floor slab contour end to end, generating closed multi-section lines of each independent superimposed sheet and post-pouring joint, and finishing splitting; and the two-dimensional expression module is configured to be capable of expressing the independent superimposed sheet and the post-pouring joint in different manners in a two-dimensional view.
9. The two-dimensional automated splitting device of composite floor slabs of claim 8, further comprising: a floor type judging module configured to be able to judge whether the target floor is a regular floor or a special-shaped floor; the special-shaped floor split module is configured to split the special-shaped floor into a conventional floor, and comprises: The sub-block dividing module is configured to be capable of crossing the concave points to serve as temporary auxiliary lines perpendicular to the splitting direction, and takes two intersection point connecting lines which are farthest from the floor contour line on each auxiliary line as block dividing lines; The primary splitting module is configured to compare the lengths of common overlapping edges of adjacent sub-blocks, enable the edges with smaller lengths to retreat one post-pouring joint width towards the inside of the corresponding sub-block, and draw closed multi-section lines in the retreating area to serve as the post-pouring joint between the two sub-blocks; The secondary splitting module is configured to enable each sub-block to enter the splitting parameter calculation module to execute splitting parameter calculation and a subsequent splitting flow until splitting of all sub-blocks is completed.
10. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements a two-dimensional automatic splitting method of a composite floor slab as claimed in any one of claims 1 to 7 when the program is executed by the processor.

Description

Two-dimensional automatic splitting method and related device for composite floor slab Technical Field The invention relates to the technical field of constructional engineering design, in particular to a two-dimensional automatic splitting method and a related device for a composite floor slab. Background In the field of fabricated concrete construction, composite floor slabs are a widely used assembled monolithic floor slab structure, which is generally composed of two parts, namely a bottom plate prefabricated in a factory and a composite layer cast in place. And transporting the prefabricated bottom plate to a construction site after the production is completed in a factory, hoisting the prefabricated bottom plate in place, binding reinforcing steel bars above the prefabricated bottom plate, pouring concrete to form a superposed layer, and finally forming an integrally stressed floor structure under the combined action of the prefabricated bottom plate and the construction site. The floor slab form can not only improve the production quality and efficiency of components by utilizing the prefabricated advantage of factories and reduce the field workload, but also ensure the structural integrity of the floor slab by pouring the field superposed layers, thereby being popularized and applied in various building types such as houses, public buildings and the like. The post-cast joint is used as a key part for connecting prefabricated parts in an assembled building and is mainly used for connecting a plurality of independent prefabricated parts into a whole in a construction site in a concrete pouring mode. In the construction process of the composite floor slab, when the prefabricated bottom plates are required to be spliced in sections, the post-pouring joints can be effectively connected between the adjacent prefabricated bottom plates, the spliced floor slab is ensured to form a continuous stress system, the problem of structural weakness caused by component segmentation is avoided, and the composite floor slab is an important component for guaranteeing the overall performance of the composite floor slab. In the current composite floor slab design process, the split of the floor slab to meet the requirements of factory production, transportation and field hoisting is an indispensable link, and computer aided design software is a common tool for the link. In the prior art, when split floor slab is split based on computer aided design software, a manual operation mode is generally adopted. Specifically, an operator first needs to manually identify the dimensions of the opposite long sides and short sides of the contour of the composite floor slab, and then judges whether the floor slab needs to be split according to a preset limit dimension. If the size of the long side exceeds the limit size, the floor slab is required to be split into a plurality of prefabricated bottom plates along the long side direction, and the width of the post-pouring joint is reserved so as to ensure that the size of the split single prefabricated bottom plate meets the requirement. After determining the splitting direction, the single board width, the seam width and the number, operators need to manually draw the split boundary of the composite floor slab and the post-pouring seam boundary. For irregular shaped floor slabs with irregular outline shapes, manual segmentation is also needed at the position where abrupt change occurs on the side line of the floor slab, so that the shape of each split prefabricated base plate is regular, and subsequent production and construction are facilitated. The manual splitting mode has obvious defects. On the one hand, the whole splitting process depends on manual operation and experience judgment of operators, so that the time consumption is long, the efficiency is low, the splitting result is inaccurate easily due to human misoperation, for example, the problems that the size of a single plate exceeds the limit requirement, the width of a post-pouring joint is set improperly and the like occur, and the subsequent production, transportation and construction quality of the components are affected. On the other hand, for complex floor outlines or batch splitting scenes of a large number of floors, the workload of manual operation can be greatly increased, the design efficiency is further reduced, and the requirements of modern building projects on the design period are difficult to meet. There are also some solutions for automated splitting within the industry, such as splitting based on three-dimensional building information model software. The scheme generally needs to construct a complete building main body structure model in an independent three-dimensional modeling platform, split the composite floor slab in the three-dimensional model, and convert the model format to generate a two-dimensional drawing file after splitting. However, this approach also has drawbacks. Firstly, the whole proces