CN115203801A - Plate steel bar dynamic association method and device based on intersection line identification - Google Patents
Plate steel bar dynamic association method and device based on intersection line identification Download PDFInfo
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Abstract
The invention relates to the technical field of intelligent drawing of construction engineering structure construction drawings, in particular to a method and a device for dynamically associating plate steel bars based on intersection line recognition, wherein the method specifically comprises the following steps: s1, extracting floor sidelines and on-board reinforcing steel lines from CAD graphs; and S2, judging whether the steel lines on the plate are related to the floor represented by the floor sidelines or not by judging the number of intersection points between the floor sidelines and the steel lines on the plate and the distance of the steel lines on the plate extending into the floor sidelines. The method of the invention is adopted to match the floor slab and the steel bars, which not only accurately reflects the relevance between the steel bars and the floor slab, but also contains a certain error of a designer in the drawing process, is convenient for efficient verification, greatly improves the processing efficiency of a computer, and makes human-computer interaction more friendly.
Description
Technical Field
The invention relates to the technical field of intelligent drawing of construction engineering structure construction drawings, in particular to a method and a device for dynamically associating plate steel bars based on intersection line recognition.
Background
In the design of the reinforcing bars of the structural slab of the building engineering, after a designer finishes drawing the reinforcing bars of the floor slab, a computer intelligent program is needed for assisting modification and checking, the accurate operation of the program depends on the accurate association between the reinforcing bars of the slab and the floor slab to which the reinforcing bars belong, and if the association is not accurate, the engineering hidden danger can be caused by the error of computer modification and checking.
Meanwhile, improper operation of designers in software often causes slight deviation of the plate reinforcing steel bars, and the part of the reinforcing steel bars can be omitted through too accurate matching on data, or a large amount of monotonous repeated workload is added for the designers to maintain the accurate positions of the plate reinforcing steel bars.
Furthermore, the positioning error of the plate steel bar generated in the design process by a designer is automatically corrected through a program, the accurate association between the plate steel bar and the floor slab to which the steel bar belongs depends on the accurate positioning of the plate steel bar, and the plate steel bar and the floor slab to which the steel bar belongs are recycled, so that the contradiction exists.
In the existing method, the floor slab and the beam wall support are mostly adopted for matching, and then the beam wall support is matched with the floor slab to determine the association between the plate steel bars and the steel bars of the floor slab, so that the steps are complex and the efficiency is low.
Disclosure of Invention
The invention aims to: aiming at the problems that the steps of establishing the relationship between the floor slab and the floor slab steel bar through the beam wall support are complex and the checking and calculating amount are difficult to carry out efficiently, the method and the device for dynamically associating the plate steel bar based on the intersection line identification are provided.
In order to achieve the purpose, the invention adopts the technical scheme that:
a plate steel bar dynamic association method based on intersection line identification specifically comprises the following steps:
s1, extracting floor sidelines and on-board reinforcing steel lines from CAD graphs;
and S2, judging whether the on-board reinforcing lines are related to the floor represented by the floor side lines by judging the number of intersection points between the floor side lines and the on-board reinforcing lines and the distance of the on-board reinforcing lines extending into the floor side lines.
As a preferred aspect of the present invention, in step S2, if the number of intersection points between the floor slab sideline and the on-board reinforcement line is greater than or equal to 2, the on-board reinforcement line is associated with the floor slab represented by the floor slab sideline.
As a preferable aspect of the present invention, if the on-board reinforcement line penetrates through the plurality of floor sidelines, the on-board reinforcement line is associated with the floor represented by the plurality of floor sidelines.
As a preferable aspect of the present invention, the on-board reinforcement lines include a board bottom reinforcement line and a board top reinforcement line.
As a preferred embodiment of the present invention, in step S2, if the number of intersection points between the floor sideline and the slab top reinforcement line is 1, and the distance that the slab top reinforcement line extends into the floor sideline is not 0, the slab top reinforcement line is associated with the floor represented by the floor sideline.
As a preferred embodiment of the present invention, in step S2, if the number of intersection points between the floor sideline and the slab top reinforcement line is 1, and the distance that the slab top reinforcement line extends into the floor sideline is 0, the slab top reinforcement line is not associated with the floor represented by the floor sideline.
As a preferred scheme of the invention, if the two sides of the plate bottom reinforcing steel bar line respectively extend out of extension lines of M drawing units and then obtain two intersection points with the side line of the floor slab, the plate bottom reinforcing steel bar line is associated with the floor slab corresponding to the side line of the floor slab.
In a preferred embodiment of the present invention, M is M =100 drawing units.
Based on the same conception, the invention also provides a plate steel bar dynamic association device based on intersection line identification, which comprises at least one processor and a memory, wherein the memory is in communication connection with the at least one processor; the memory stores instructions executable by the at least one processor to enable the at least one processor to perform any of the above described methods of dynamic association of sheet steel bars based on intersection identification.
Based on the same concept, the invention also provides a computer readable medium, on which instructions executable by a processor are stored, and when the instructions are executed by the processor, the instructions cause the processor to execute any one of the above-mentioned method for dynamically associating the plate steel bars based on intersection line identification.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
the method of the invention is adopted to match the floor slab and the steel bars, which not only accurately reflects the relevance between the steel bars and the floor slab, but also contains a certain error of a designer in the drawing process, is convenient for efficient verification, greatly improves the processing efficiency of a computer, and makes human-computer interaction more friendly.
Drawings
Fig. 1 is a flowchart of a method for dynamically associating a steel bar with a plate based on intersection recognition in embodiment 1 of the present invention;
FIG. 2 is a schematic view of a steel bar line on a ceiling in embodiment 2 of the present invention;
FIG. 3 is a schematic view of reinforcing bars at the bottom of a slab in embodiment 2 of the present invention;
FIG. 4 is a schematic view of the reinforcing bars of the bottom plate with hooks according to embodiment 2 of the present invention;
fig. 5 is a schematic view of a positional relationship between the outer edge line of the floor and the beam wall in embodiment 2 of the present invention;
FIG. 6 is a schematic diagram of an intersection point between a slab top reinforcement line and a floor slab outer edge line when slab upper reinforcements are arranged on both sides of the floor slab edge line in example 2 of the present invention;
fig. 7 is a schematic view of two intersection points between the top reinforcement line and the outer edge line of the floor slab when the reinforcement at the upper part of the floor slab is arranged by pulling;
fig. 8 is a schematic view showing the relationship between the reinforcing bars and the floor slab, which is established by the large distance from the intersection point to the end point on the outer side line side of the floor slab when the reinforcing bars on the floor slab are arranged only on one side of the floor slab in embodiment 2 of the present invention;
fig. 9 is a schematic view showing that the distance from the intersection point to the end point on the outer side line side of the floor slab is small and the reinforcing bars are not associated with the floor slab when the reinforcing bars on the floor slab are arranged only on one side of the floor slab in example 2 of the present invention;
FIG. 10 is a schematic diagram showing that when both L1 and L2 are not 0, if there is an intersection with the outer edge line of the floor slab, the correlation must occur in embodiment 2 of the present invention;
fig. 11 is a schematic view of embodiment 2 of the present invention, in which P1 is inside a polygon formed by the outer edges of the slabs, and the protruding length L1 of the left side of P1 is 0, so that no association with the floor slab occurs;
FIG. 12 is a schematic view of example 2 of the present invention, in which P2 is outside the polygon formed by the outer edges of the slabs, and the length of the reinforcing bars extending into the floor slab is not 0, so that the reinforcing bars are associated with the floor slab;
fig. 13 is a schematic diagram of the embodiment 2 of the present invention, when both sides of the through-reinforcing bar are 0 at the same time, it needs to sequentially determine whether P1 and P2 are inside the polygon formed by the outer edge lines of the slab, and at this time, both points are not inside the polygon, so that the length of the reinforcing bar extending into the floor slab is not 0, and the reinforcing bar is associated with the floor slab;
fig. 14 is a schematic view showing that if there is a point inside the polygon formed by the outer edges of the plates in embodiment 2 of the present invention, the length of the reinforcing bars extending into the floor slab is 0, and no association occurs between the reinforcing bars and the floor slab;
fig. 15 is a schematic view of the association between upper reinforcing bars and a floor slab in embodiment 2 of the present invention;
fig. 16 is a schematic view of determining whether a slab-bottom reinforcement is associated with a floor in embodiment 2 of the present invention;
figure 17 is a schematic view of a reinforcing bar being associated with a plurality of floors as the reinforcing bars below the slab are pulled through more floors in accordance with example 2 of the present invention;
fig. 18 is a schematic view showing the relationship between the lower reinforcing bars and the floor in embodiment 2 of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
A plate reinforcement dynamic association method based on intersection line identification is disclosed, wherein a flow chart is shown in figure 1, and the method specifically comprises the following steps:
s1, extracting floor side lines and plate steel bar lines from CAD graphs;
and S2, judging whether the on-board reinforcing lines are related to the floor represented by the floor side lines by judging the number of intersection points between the floor side lines and the on-board reinforcing lines and the distance of the on-board reinforcing lines extending into the floor side lines.
As a preferred aspect of the present invention, in step S2, if the number of intersection points between the floor slab sideline and the on-board reinforcement line is greater than or equal to 2, the on-board reinforcement line is associated with the floor slab represented by the floor slab sideline.
As a preferable aspect of the present invention, if the on-board reinforcement line penetrates through the plurality of floor sidelines, the on-board reinforcement line is associated with the floor represented by the plurality of floor sidelines.
As a preferable aspect of the present invention, the on-board reinforcement lines include a board bottom reinforcement line and a board top reinforcement line.
As a preferred embodiment of the present invention, in step S2, if the number of intersection points between the floor sideline and the slab top reinforcement line is 1, and the distance that the slab top reinforcement line extends into the floor sideline is not 0, the slab top reinforcement line is associated with the floor represented by the floor sideline.
As a preferred embodiment of the present invention, in step S2, if the number of intersection points between the floor sideline and the slab top reinforcement line is 1, and the distance that the slab top reinforcement line extends into the floor sideline is 0, the slab top reinforcement line is not associated with the floor represented by the floor sideline.
As a preferred scheme of the present invention, if two sides of the slab bottom reinforcement line extend out of the extension lines of M drawing units, and then two intersection points are obtained with the floor sidelines, the slab bottom reinforcement line is associated with the floor corresponding to the floor sidelines.
In a preferred embodiment of the present invention, M is M =100 drawing units.
Example 2
1. A plate top reinforcing wire is composed of a layout range wire and two anchor wires, and the schematic diagram of the plate top reinforcing wire is shown in fig. 2.
2. A plate bottom reinforcing steel bar is composed of a layout range line, the schematic diagram of the plate bottom reinforcing steel bar is shown in fig. 3, when hooks need to be expressed, the hooks need to be drawn on two sides, and the schematic diagram of the plate bottom reinforcing steel bar with the hooks is shown in fig. 4.
3. The outer edge line of the floor is a closed polygon formed by combining a plurality of line segments and is positioned in the center of the beam wall, and the position relationship between the outer edge line of the floor and the beam wall is shown in figure 5.
4. And judging whether the slab top rib is associated with a certain floor slab or not.
And sequentially judging whether the plate top rib range line is intersected with the floor sideline or not, and entering the next stage of judgment when an intersection point is obtained.
(1) When the upper portion steel bars of the plate are arranged on two sides of the floor edge line, if the plate top steel bar line and the floor outer edge line obtain an intersection point, association with the floor can be judged, as shown in fig. 6, the intersection point between the plate top steel bar line L1 and the left floor outer edge line J1 is P1, and then the plate top steel bar line and the floor corresponding to the left floor outer edge line J1 are associated.
(2) When the reinforcing steel bars on the upper portion of the floor slab are arranged in a pulling-through mode, two intersection points are obtained between the slab top reinforcing steel bar line and the outer edge line of the floor slab, and any one of the intersection points can be judged to be associated with the floor slab, as shown in fig. 7, two intersection points P1 and P2 are arranged between the slab top reinforcing steel bar line L2 and the outer edge line J2 of the floor slab, so that the plate top reinforcing steel bar line L2 can be judged to be associated with the floor slab corresponding to the outer edge line J2 of the floor slab through P1 or P2, and the association between the slab top reinforcing steel bar line L2 and the floor slab corresponding to the outer edge line J2 of the floor slab can also be directly understood through the intersection points P1 and P2. When the upper part is pulled through the steel bars to pass through more floor slabs, the related floor slabs can be obtained in the same way, and at the moment, one steel bar is related to the multiple floor slabs.
(3) When the floor slab upper reinforcing steel bars are arranged on one side of the floor slab only:
a. and the plate top steel bar line is arranged on one side of the floor slab, an intersection point is obtained between the plate top steel bar line and the outer edge line of the floor slab, and the distance K1 from the intersection point to the end point of the outer edge line side of the floor slab is greater than the distance K2 from the intersection point to the end point of the adjacent plate side of the outer edge line of the floor slab, so that the association between the plate top steel bar line and the floor slab corresponding to the distance K1 side can be judged, as shown in figure 8.
b. The steel bar line is arranged on one side of the adjacent slab of the floor slab, at the moment, an intersection point can still be obtained between the top steel bar line and the outer edge line of the floor slab, but the distance K1 from the intersection point to the end point of the outer edge line side of the floor slab is smaller than the distance K2 from the intersection point to the end point of the adjacent slab side of the outer edge line of the floor slab, and the floor slab is not related to the floor slab corresponding to the side of the distance K1, as shown in figure 9. This situation can also be expressed as. If the plate top reinforcing steel bar line and the outer side line of the floor slab have an intersection point, if the length of the reinforcing steel bar extending into the floor slab by the plate top reinforcing steel bar line is not 0, the plate top reinforcing steel bar line is associated with the extending floor slab; and if the length of the steel bar of the plate top steel bar line extending into the floor slab is 0, the plate top steel bar line is not related to the floor slab extending into the floor slab.
5. And judging whether the length of the steel bar extending into the floor slab is 0.
The plate top reinforcing steel wire consists of a left control point P1, a right control point P2, a left extension length L1, a right extension length L2;
when both L1 and L2 are not 0, if there is an intersection with the floor outer edge line, the correlation is determined as shown in fig. 10.
When L1 is 0 and L2 is not 0, it is necessary to determine whether the floor is on the side where P1 is located.
By the judgment, P1 is inside the polygon formed by the plate outer edge line, and the extending length L1 of the left side of P1 is 0 at this time, so that it is not related to the floor, as shown in fig. 11.
When L1 is not 0 and L2 is 0, it is necessary to determine whether the floor is on the side where P2 is located.
By the judgment, P2 is outside the polygon formed by the outer edge line of the slab, and the length of the reinforcing steel bar extending into the floor slab is not 0, so that it is associated with the floor slab, as shown in fig. 12.
In particular, when both sides of the bar are 0, it is necessary to sequentially determine whether P1 and P2 are inside the polygon formed by the outer edge lines of the slab, and at this time, both points are not inside the polygon, so that the length of the bar extending into the floor is not 0, and the bar is associated with the floor, as shown in fig. 13.
If there is a point inside the polygon formed by the outer edges of the plates, the length of the reinforcing bar extending into the floor is 0, and the reinforcing bar is not associated with the floor, as shown in fig. 14.
6. By adopting the method to match the upper reinforcing steel bars of the floor slab, the relevance between the upper reinforcing steel bars and the floor slab is accurately reflected, certain errors of a designer in the drawing process are contained, and the man-machine interaction is more friendly, as shown in fig. 15.
7. And judging whether the bottom plate steel bar is associated with a certain floor slab.
Extension lines of M drawing units extend from two sides of the steel bar at the lower part of the plate respectively. The extended slab bottom rib range line is intersected with the floor sideline, and when two intersection points are obtained, the slab reinforcement is judged to be associated with the floor, as shown in fig. 16. For the bottom ribs of the plate, the method is simple and clear, and can be well suitable for various conditions. As shown in fig. 17, when the reinforcing bars at the lower part of the slab are pulled through more floors, the associated floors can be obtained in the same manner, and at this time, one reinforcing bar is associated with a plurality of floors, and the method for determining the association of the reinforcing bars at the upper part of the slab is the same as the method for determining the association of the reinforcing bars at the upper part of the slab.
The reason for designing is that, under a correct drawing method, two end points of a bottom rib of a plate should be exactly on the edge line of the plate, but because the drawing amount is large, practically one project of thousands of reinforcing steel bars cannot be drawn exactly, the two end points of the bottom rib of the plate are not exactly on the edge line of the plate but have a certain error, for example, when viewed at high resolution, the two end points of the bottom rib of the plate and the edge line of the plate are not intersected but are different by a few drawing units, if software judges strictly according to that the two end points of the bottom rib of the plate are exactly on the edge line of the plate when performing association, the situation of the different drawing units is considered as non-intersected and not associated, but actually the association should be established. In order to avoid the situation that errors are caused by different drawing accuracy and associated misjudgment can occur, extension lines of M drawing units extend from two sides of the steel bar at the lower part of the plate respectively, and fuzzy judgment is carried out to a certain degree. If the lower part of the plate is not intersected with the edge line of the floor after the two sides of the lower part of the plate are respectively extended with the extension lines of M drawing units, the non-intersection is judged finally; and if the lower part steel bars of the plate are intersected with the side line of the floor after the two sides of the lower part steel bars of the plate are respectively extended by the extension lines of M drawing units, the intersection is judged finally. Such fault tolerance mechanism makes the method of the present invention more practical and solves the problem of the lower steel bars and the floor slab being unable to be associated due to accurate judgment.
Further, M =100 is preferred when considering the value of M, because in most cases, the width of the beam and the wall is not less than 200 drawing units, and the two ends of the slab bottom steel bar should be drawn on the center line of the beam and the wall, and the minimum beam width and half of the wall width, namely 100 drawing units, are taken as drawing errors in most cases, and M =100 may include most cases that can tolerate errors.
8. By adopting the method to match the reinforcing steel bars at the lower part of the floor slab, the relevance between the reinforcing steel bars at the lower part and the floor slab is accurately reflected, certain errors of a designer in the drawing process are also contained, the man-machine interaction is more friendly, and the relevance schematic diagram between the reinforcing steel bars at the lower part and the floor slab is shown in fig. 18.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A plate steel bar dynamic association method based on intersection line identification is characterized by comprising the following steps:
s1, extracting floor side lines and plate steel bar lines from CAD graphs;
and S2, judging whether the steel lines on the plate are related to the floor represented by the floor sidelines or not by judging the number of intersection points between the floor sidelines and the steel lines on the plate and the distance of the steel lines on the plate extending into the floor sidelines.
2. The method according to claim 1, wherein in step S2, if the number of intersection points between the edge lines of the floor and the reinforcement lines on the floor is greater than or equal to 2, the reinforcement lines on the floor are associated with the floor represented by the edge lines of the floor.
3. The method of claim 2, wherein the on-board reinforcement line is associated with the floor represented by the plurality of floor sidelines if the on-board reinforcement line penetrates through the plurality of floor sidelines.
4. The method for dynamically associating plate reinforcements based on intersection line recognition, according to claim 1, wherein the plate reinforcement lines comprise plate bottom reinforcement lines and plate top reinforcement lines.
5. The method according to claim 4, wherein in step S2, if the number of intersection points between the floor sideline and the slab top reinforcement line is 1 and the distance that the slab top reinforcement line extends into the floor sideline is not 0, the slab top reinforcement line is associated with the floor represented by the floor sideline.
6. The method according to claim 5, wherein in step S2, if the number of intersections between the floor sideline and the slab top reinforcement line is 1 and the distance that the slab top reinforcement line extends into the floor sideline is 0, the slab top reinforcement line is not associated with the floor represented by the floor sideline.
7. The method of claim 4, wherein if two sides of the bottom reinforcement line extend beyond the extension lines of the M drawing units respectively and two intersection points are obtained with the edge line of the floor slab, the bottom reinforcement line is associated with the floor slab corresponding to the edge line of the floor slab.
8. The method of claim 7, wherein M is M =100 drawing units.
9. A plate reinforcing steel bar dynamic association device based on intersection line identification is characterized by comprising at least one processor and a memory which is in communication connection with the at least one processor; the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of dynamic association of a panel bar based on intersection identification of any one of claims 1 to 8.
10. A computer readable medium having stored thereon instructions executable by a processor, the instructions, when executed by the processor, causing the processor to perform the method of dynamic association of plate bars based on intersection identification as claimed in any one of claims 1 to 8.
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| CN202210830402.9A CN115203801B (en) | 2022-07-15 | 2022-07-15 | Plate reinforcement dynamic association method and device based on intersection line identification |
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| CN202210830402.9A CN115203801B (en) | 2022-07-15 | 2022-07-15 | Plate reinforcement dynamic association method and device based on intersection line identification |
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| US20020009223A1 (en) * | 2000-07-13 | 2002-01-24 | Wong Tin Cheung | Computer automated process for analysing and interpreting engineering drawings |
| JP2005182167A (en) * | 2003-12-16 | 2005-07-07 | Aakitekku:Kk | Method, device and program for creating drawing |
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| US20170185704A1 (en) * | 2015-07-30 | 2017-06-29 | Industry-Academic Cooperation Foundation, Dankook University | Automatic generation system of rebar shop drawing using 3d model |
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