Special-shaped double-curved-surface concrete structure reinforcing steel bar sample turning processing method and system

Abstract

The invention discloses a special-shaped double-curved-surface concrete structure reinforcing steel bar sample turning processing method and system, and the method comprises the steps: simulating a special-shaped double-curved-surface concrete structure, and obtaining a structure model; performing component extraction on the structure model to obtain a model component; extracting to obtain a reinforcing steel bar spline line of the model component; carrying out labeling treatment on the reinforcing steel bar spline line to obtain a labeled reinforcing steel bar spline line; according to the marked reinforcing steel bar sample line, performing sample turning optimization on the reinforcing steel bar to obtain a reinforcing steel bar blanking list; and according to the steel bar blanking list, the steel bars are subjected to arc bending machining, and the steel bars subjected to arc bending are bound. The double-curved-surface component can be subjected to sampling modeling, the reinforcing steel bar is machined into a shape with any curvature, and the structural quality is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of special-shaped building construction, and particularly to a method and system for steel bar lofting processing of a special-shaped hyperbolic concrete structure. Background Art

[0002] Special-shaped buildings pursue novelty, uniqueness, and extraordinariness in appearance, with their shapes breaking the conventional and evolving from basic geometric bodies into complex and changeable geometric bodies. With the continuous development of technology, the shapes of special-shaped buildings can be flexible and changeable, achieving dynamic building postures and facade effects, being different from traditional linear buildings in form and achieving regional landmark effects. Due to their unique appearance, large space and other characteristics, they are becoming more and more popular. However, due to their peculiar appearance and complex and changeable structures, the internal steel bar structures also vary in shape accordingly.

[0003] Currently, existing steel bar lofting processing technologies cannot model and sample special-shaped curved surface members, especially hyperbolic surface members. Therefore, to solve the above problems, a method and system for steel bar lofting processing of a special-shaped hyperbolic concrete structure are needed, which can sample the steel bars of a special-shaped hyperbolic structure during the actual construction process and bend and process the steel bars to fit the shape of the special-shaped hyperbolic members. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to overcome the defects in the prior art and provide a method and system for steel bar lofting processing of a special-shaped hyperbolic concrete structure, which can sample and model hyperbolic surface members, process the steel bars into shapes with arbitrary curvatures, and ensure the structural quality.

[0005] The method for steel bar lofting processing of a special-shaped hyperbolic concrete structure of the present invention includes:

[0006] Simulating a special-shaped hyperbolic concrete structure to obtain a structural model;

[0007] Extracting components from the structural model to obtain model components;

[0008] Extracting the steel bar spline of the model component;

[0009] Performing marking processing on the steel bar spline to obtain the marked steel bar spline;

[0010] According to the marked steel bar spline, optimizing the steel bar lofting to obtain a steel bar cutting list;

[0011] According to the steel bar cutting list, performing arc bending processing on the steel bars and binding the bent steel bars.

[0012] Further, extracting components from the structural model to obtain model components, specifically including:

[0013] Divide the structural model into parts to obtain several relatively independent units, classify and sort the components of each unit, and extract the corresponding component types.

[0014] Furthermore, extract the steel bar spline of the model component, specifically including:

[0015] Perform extraction processing on the model component to generate several virtual steel bar splines, and correspond the virtual steel bar splines to the model component to obtain the steel bar spline of the model component.

[0016] Furthermore, perform marking processing on the steel bar spline to obtain the marked steel bar spline, specifically including:

[0017] Perform editing processing on the steel bar spline to generate a steel bar spline number, export the steel bar spline after generating the number to obtain the exported steel bar spline;

[0018] Perform optimization and merging processing on the steel bar splines that do not meet the standards in the exported steel bar splines to obtain the optimized steel bar splines;

[0019] Perform marking on the line segments in the optimized steel bar splines to obtain the marked steel bar splines.

[0020] Furthermore, perform arc bending processing on the steel bar, specifically including: setting arc bending parameters, and performing arc bending processing on the steel bar according to the set arc bending parameters; wherein, the arc bending parameters include the top depth.

[0021] Furthermore, set the top depth according to the following method:

[0022] Draw a circle with a radius of r, draw a straight line passing through the center of the circle, draw a tangent line to the circle through the intersection point c of the straight line and the circle, offset the straight line by a distance d along the tangent line direction to obtain the offset straight line, take the intersection point of the offset straight line and the tangent line as point a, take the intersection point of the offset straight line and the circle as point b, and take the distance between point a and point b as the top depth; wherein, point b is the intersection point of the offset straight line and the circle that is closer to the tangent line.

[0023] Furthermore, after setting the top depth, increase the top depth by d 0 , to obtain the finally set top depth.

[0024] A steel bar detailing processing system for a special-shaped hyperbolic concrete structure, including a steel bar spline processing unit and a steel bar processing unit;

[0025] The steel bar spline processing unit is used to simulate the special-shaped hyperbolic concrete structure to obtain a structure model, extract components from the structure model to obtain model components, and further extract the steel bar splines of the model components. By performing annotation processing on the steel bar splines, the annotated steel bar splines are obtained; according to the annotated steel bar splines, the steel bar lofting is optimized to obtain a steel bar cutting list.

[0026] The steel bar processing unit is used to bend the steel bar according to the steel bar cutting list and bind the bent steel bar.

[0027] Furthermore, the steel bar processing unit includes a bending machine.

[0028] By setting bending parameters for the bending machine, the bending machine bends the steel bar according to the set bending parameters; wherein, the bending parameters include the top depth.

[0029] Furthermore, the top depth is set according to the following method:

[0030] Draw a circle with a radius of r, draw a straight line passing through the center of the circle, draw a tangent line to the circle through the intersection point c of the straight line and the circle, offset the straight line by a distance d along the tangent line direction to obtain an offset straight line, take the intersection point of the offset straight line and the tangent line as point a, take the intersection point of the offset straight line and the circle as point b, and take the distance between point a and point b as the top depth; wherein, point b is the point among the intersection points of the offset straight line and the circle that is closer to the tangent line; the distance d is the distance between the center of the end guide wheel and the center of the top depth wheel of the bending machine.

[0031] The beneficial effects of the present invention are: A method and system for steel bar lofting and processing of a special-shaped hyperbolic concrete structure disclosed by the present invention extract the contour line of the special-shaped component, use the contour line as the spline of the steel bar, mark the parameters such as the characteristics (arc length, radius) of each section of the spline, input the parameters into the numerical control bending machine, and then bend the steel bar, so that the steel bar can be processed into a shape with any curvature, the bending forming quality is good, it can effectively match the shape of the special-shaped curved surface line, and the structural quality is guaranteed; the forming quality is high, the mistakes of manual steel bar lofting are reduced, materials are saved, and the construction efficiency is improved. Brief Description of the Drawings

[0032] The present invention will be further described below with reference to the drawings and embodiments:

[0033] Figure 1 It is a schematic diagram of the extraction of the structure model components of the present invention;

[0034] Figure 2 It is a schematic diagram of the extraction of the component steel bar splines of the present invention;

[0035] Figure 3 Schematic diagram of the steel bar spline numbering for the present invention;

[0036] Figure 4 Schematic diagram of the steel bar batching list for the present invention;

[0037] Figure 5 Schematic diagram of the calculation principle for the top depth of the present invention;

[0038] Figure 6 Schematic diagram of the steel bar bending process for the present invention. Detailed implementation manners

[0039] The following further describes the present invention in conjunction with the accompanying drawings of the specification, as shown in the figures:

[0040] The method for lofting and processing the steel bars of the special-shaped hyperbolic concrete structure of the present invention includes:

[0041] Simulate the special-shaped hyperbolic concrete structure to obtain a structural model; among them, existing three-dimensional simulation technologies can be used to construct a three-dimensional model of the special-shaped hyperbolic concrete structure; for example, existing three-dimensional modeling software Rhino can be used for three-dimensional modeling;

[0042] Extract the components from the structural model to obtain model components;

[0043] Extract the steel bar spline of the model component;

[0044] Perform labeling processing on the steel bar spline to obtain the labeled steel bar spline;

[0045] According to the labeled steel bar spline, optimize the lofting of the steel bars to obtain a steel bar cutting list;

[0046] According to the steel bar cutting list, perform bending processing on the steel bars and bind the bent steel bars.

[0047] The present invention is applicable to projects with complex special-shaped structural components, multiple curved surfaces in the same component, and relatively large designed reinforcement diameters. The lofting and processing method of the present invention is applied to actual on-site construction. The quality of the processed steel bars is relatively good, meeting the requirements of the component shape, solving the problems of difficult lofting and processing of special-shaped curved surface components by conventional lofting and processing machinery, improving the productivity to a certain extent, and making reasonable use of the material consumption through precise cutting, and accelerating the construction progress.

[0048] In this embodiment, as Figure 1 shown, extracting the components from the structural model to obtain model components specifically includes:

[0049] Divide the overall structural model into parts to obtain several relatively independent units, then classify and organize the components of each unit, and finally extract the corresponding component types.

[0050] In this embodiment, as Figure 2 shown, the steel bar spline of the model component is extracted, specifically including:

[0051] Perform extraction processing on the model component to generate several virtual steel bar splines, and correspond the virtual steel bar splines to the model component to obtain the steel bar spline of the model component. Among them, the extraction processing includes curve processing, length calculation, curve segmentation, surface processing, extrusion, and intersection.

[0052] The programming and extraction of the steel bar spline can be carried out in the Grasshopper plug-in of the 3D modeling software Rhino: In the programming interface, pick through commands such as curve, length calculation, curve segmentation, surface, extrusion, intersection, etc., and form a battery group program file in series. Then, identify the corresponding components in Rhnio and enter them into the battery group program for calculation, automatically generating multiple corresponding virtual steel bar splines. Through the generation command, generate solidified steel bar splines in Rhnio for extraction. Among them, Grasshopper (abbreviated as GH) is a visual programming plug-in running in the Rhino 3D modeling software.

[0053] In this embodiment, perform annotation processing on the steel bar spline to obtain the annotated steel bar spline, specifically including:

[0054] Perform editing processing on the steel bar spline to generate a steel bar spline number, and export the steel bar spline after generating the number to obtain the exported steel bar spline; among them, the editing processing includes curve processing, endpoint connection, average value calculation, sorting, retrieval, and digital slider processing;

[0055] Perform optimization and merging processing on the steel bar splines that do not meet the standards in the exported steel bar spline to obtain the optimized steel bar spline;

[0056] Perform annotation on the line segments in the optimized steel bar spline to obtain the annotated steel bar spline.

[0057] Similarly, as Figure 3 shown, the steel bar numbering can be carried out in the Grasshopper plug-in of the 3D modeling software Rhino (Rhino): In the programming interface, pick through commands such as curve, endpoint connection, average value calculation, sorting, retrieval, digital slider, etc., and form a new battery group program file in series, and connect to the steel bar spline battery group program to generate corresponding numbers on the basis of the original steel bar spline.

[0058] After generating the steel bar spline curves and numbers with Grasshopper, select all the spline curves and numbers in Rhino, and in the file list of the menu bar, export the CAD format file through the "Export Selected Objects" command.

[0059] The steel bar spline curves in the exported CAD format file are composed of multiple small line segments and have multiple lengths and radii, which are not conducive to on-site processing. Optimization is required. Optimize a limited number of arc lengths and radii according to the actual situation and perform merging processing, and then label the line segments and extract the data into an Excel table.

[0060] In this embodiment, the optimization of steel bar detailing: According to different types of components, combine the steel bar flat method drawing and the extracted spline curve data, and after sorting, send it to the steel bar detailing personnel of the labor team. The steel bar detailing personnel perform the final optimization of the steel bars and issue the cutting list or batching list, as Figure 4 shown. Among them, through steel bar detailing and optimized cutting, steel bar resources can be reasonably used, the utilization rate of steel bars can be improved, and correspondingly, the labor consumption and the usage rate of machinery can also be reduced.

[0061] In this embodiment, a bending machine can be used to perform bending processing on steel bars, specifically including: setting bending parameters, and using the bending machine to perform bending processing on steel bars according to the set bending parameters; wherein, the bending parameters include the top depth.

[0062] The top depth is the key value determining the size of the radian, which refers to the displacement value of the top depth wheel advancing forward. The larger the top depth value, the larger the formed curvature, and the smaller the top depth value, the smaller the formed curvature.

[0063] Set or calculate the top depth according to the following method:

[0064] As Figure 5 shown, draw a circle with a radius of 2m, draw a straight line passing through the center of the circle, draw a tangent line to the circle through the intersection point c of the straight line and the circle, offset the straight line by a distance d along the tangent line direction to obtain the offset straight line, take the intersection point of the offset straight line and the tangent line as point a, take the intersection point of the offset straight line and the circle as point b, and take the distance between point a and point b as the top depth; wherein, point b is the point closer to the tangent line among the intersection points of the offset straight line and the circle. The radius r can be set according to the actual working conditions, and the distance d is the distance between the center of the end guide wheel and the center of the top depth wheel of the bending machine. In this embodiment, d is taken as 200mm.

[0065] After setting or calculating the top depth, increase the top depth by d again 0, the finally set top depth is obtained. Since the steel bar has a certain elastic deformation, too small a top depth will cause the steel bar to return to its original shape. Therefore, through the above method, the finally set top depth can better meet the quality requirements of arc bending forming. In this embodiment, d 0 can take a value of 10 mm.

[0066] The present invention also relates to a steel bar lofting processing system for a special-shaped hyperbolic concrete structure. The system corresponds to the above-mentioned steel bar lofting processing method for a special-shaped hyperbolic concrete structure and can be understood as a system for implementing the above method. The system includes a steel bar spline line processing unit and a steel bar processing unit;

[0067] The steel bar spline line processing unit is used to simulate the special-shaped hyperbolic concrete structure to obtain a structural model, extract components from the structural model to obtain model components, and further extract the steel bar spline lines of the model components. By performing marking processing on the steel bar spline lines, the marked steel bar spline lines are obtained; according to the marked steel bar spline lines, the steel bars are optimized for lofting to obtain a steel bar cutting list; wherein, the steel bar spline line processing unit includes a processor and a memory; both the processor and the memory adopt existing technologies and will not be elaborated here.

[0068] The steel bar processing unit is used to bend the steel bars according to the steel bar cutting list and bind the bent steel bars.

[0069] In this embodiment, the steel bar processing unit includes a bending machine;

[0070] By setting bending parameters for the bending machine, the bending machine bends the steel bars according to the set bending parameters; wherein, the bending parameters include the top depth.

[0071] During the arc bending process, interface operations and command settings are performed according to the specific type or model of the bending machine used, and the set bending parameters are set into the bending machine, so that the bending machine works according to the set bending parameters. The process of using the bending machine for arc bending is as Figure 6 shown.

[0072] In this embodiment, the top depth is set or calculated according to the following method:

[0073] As Figure 5As shown in the figure, draw a circle with a radius of 2m, draw a straight line passing through the center of the circle, draw a tangent line to the circle through the intersection point c of the straight line and the circle, offset the straight line by a distance d of 200mm along the tangent direction to obtain the offset straight line, take the intersection point of the offset straight line and the tangent line as point a, take the intersection point of the offset straight line and the circle as point b, and take the distance between point a and point b as the top depth; wherein, point b is the point closer to the tangent line among the intersection points of the offset straight line and the circle; the distance d is the distance between the center of the end guide wheel and the center of the top depth wheel of the bending machine.

[0074] It should be noted that for quality control, the specifications, models, spacings, and quantities of steel bars shall meet the requirements of the design drawings; the shapes, sizes, anchorage lengths, lapping lengths, and joint settings of steel bars shall meet the requirements of the design and construction specifications; the mechanical connection of steel bars shall comply with JGJ107-2016 and other technical regulations; the surfaces of steel bars shall be kept clean without old rust and pollution; the hook directions of steel bars shall be correct, and the lapping joints shall comply with the construction specifications; for the steel bars with mechanical connections, threading shall be carried out in advance; the processed steel bars at the same part shall be tied firmly and stored classified according to the numbers; the allowable deviations of steel bar processing are shown in Table 1:

[0075] Table 1

[0076] Item Permissible deviation (mm) Net dimension of stressed reinforcement along length direction ±10 Bending position of bent-up reinforcement ±20 Outer dimension of stirrup ±5

[0077] The present invention provides an objective and scientific method and system for steel bar detailing and processing of special-shaped hyperbolic concrete structures, which ensures the construction quality, effectively reduces the construction difficulty and risk, reduces the danger of workers during construction, speeds up the construction progress, and provides technical support for the smooth progress of the project.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A method for steel bar lofting and processing of a special-shaped hyperbolic concrete structure, characterized in that: It includes: Simulating the special-shaped hyperbolic concrete structure to obtain a structural model; Extracting components from the structural model to obtain model components; Extracting the steel bar spline of the model component; Performing marking processing on the steel bar spline to obtain the marked steel bar spline; According to the marked steel bar spline, optimizing the steel bar lofting to obtain a steel bar cutting list; According to the steel bar cutting list, performing arc bending processing on the steel bar and binding the bent steel bar.

2. The method for steel bar lofting and processing of a special-shaped hyperbolic concrete structure according to claim 1, characterized in that: Extracting components from the structural model to obtain model components, specifically including: Dividing the structural model into parts to obtain several relatively independent units, classifying and sorting the components of each unit, and extracting the corresponding component types.

3. The method for steel bar lofting and processing of a special-shaped hyperbolic concrete structure according to claim 1, characterized in that: Extracting the steel bar spline of the model component, specifically including: Performing extraction processing on the model component to generate several virtual steel bar splines, and corresponding the virtual steel bar splines to the model component to obtain the steel bar spline of the model component.

4. The method for steel bar lofting and processing of a special-shaped hyperbolic concrete structure according to claim 1, characterized in that: Performing marking processing on the steel bar spline to obtain the marked steel bar spline, specifically including: Performing editing processing on the steel bar spline to generate a steel bar spline number, exporting the steel bar spline after generating the number to obtain the exported steel bar spline; Performing optimization and merging processing on the steel bar splines that do not meet the standards in the exported steel bar spline to obtain the optimized steel bar spline; Marking the line segments in the optimized steel bar spline to obtain the marked steel bar spline.

5. The method for steel bar lofting and processing of a special-shaped hyperbolic concrete structure according to claim 1, characterized in that: Performing arc bending processing on the steel bar, specifically including: setting arc bending parameters and performing arc bending processing on the steel bar according to the set arc bending parameters; wherein, the arc bending parameters include the top depth.

6. The method for steel bar lofting and processing of a special-shaped hyperbolic concrete structure according to claim 5, characterized in that: Setting the top depth according to the following method: Drawing a circle with a radius of r, making a straight line passing through the center of the circle, making a tangent to the circle through the intersection point c of the straight line and the circle, offsetting the straight line by a distance d along the tangent direction to obtain the offset straight line, taking the intersection point of the offset straight line and the tangent as point a, taking the intersection point of the offset straight line and the circle as point b, and taking the distance between point a and point b as the top depth; wherein, point b is the point closer to the tangent among the intersection points of the offset straight line and the circle.

7. The method for steel bar lofting and processing of a special-shaped hyperbolic concrete structure according to claim 5, characterized in that: After setting the top depth, increase the top depth by d 0 , and obtain the finally set top depth.

8. A steel bar lofting and processing system for a special-shaped hyperbolic concrete structure, characterized in that: It includes a steel bar spline processing unit and a steel bar processing unit; The steel bar spline processing unit is used to simulate the special-shaped hyperbolic concrete structure to obtain a structural model, extract components from the structural model to obtain model components, and further extract the steel bar splines of the model components. By performing marking processing on the steel bar splines, marked steel bar splines are obtained; according to the marked steel bar splines, the steel bar lofting is optimized to obtain a steel bar cutting list. The steel bar processing unit is used to bend the steel bars according to the steel bar cutting list and bind the bent steel bars.

9. The special-shaped hyperbolic concrete structure steel bar lofting and processing system according to claim 8, characterized in that: the steel bar processing unit includes a bending machine; by setting bending parameters for the bending machine, the bending machine bends the steel bars according to the set bending parameters; wherein, the bending parameters include the top depth.

10. The special-shaped hyperbolic concrete structure steel bar lofting and processing system according to claim 9, characterized in that: the top depth is set according to the following method: Draw a circle with a radius of r, draw a straight line passing through the center of the circle, draw a tangent to the circle through the intersection point c of the straight line and the circle, offset the straight line by a distance d along the tangent direction to obtain an offset straight line, take the intersection point of the offset straight line and the tangent as point a, take the intersection point of the offset straight line and the circle as point b, and take the distance between point a and point b as the top depth; wherein, point b is the point closer to the tangent among the intersection points of the offset straight line and the circle; the distance d is the distance between the center of the end guide wheel and the center of the top depth wheel of the bending machine.

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