CN116305629A - Steel plate material preparation method and device for steel box bridge - Google Patents

Steel plate material preparation method and device for steel box bridge Download PDF

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CN116305629A
CN116305629A CN202310138938.9A CN202310138938A CN116305629A CN 116305629 A CN116305629 A CN 116305629A CN 202310138938 A CN202310138938 A CN 202310138938A CN 116305629 A CN116305629 A CN 116305629A
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parts
steel
nesting
steel plates
typesetting
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汪源
杨鑫
刘昌文
刘承权
王艳
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China 19th Metallurgical Corp Chengdu Construction Co ltd
China 19th Metallurgical Corp
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Abstract

The invention relates to the technical field of steel structure material preparation, discloses a steel plate material preparation method and device for a steel box bridge, and aims to solve the problems of lower accuracy and efficiency of the existing method, wherein the scheme mainly comprises the following steps: classifying the parts of the steel box bridge according to the design drawing, and recording attribute information of various parts in the EXCEL form; drawing the outer contours of various parts in the CAD software in a moderate proportion, and labeling the numbers of the various parts into the CAD software; importing the EXCEL form and the CAD software into nesting software, and acquiring the material, thickness, number and outer contour dimension of the corresponding parts according to the serial numbers by the nesting software, and generating the corresponding parts; and the nesting software performs nesting typesetting on the generated parts according to the materials and the thicknesses of the parts, and determines the size and the number of the steel plates required under each material and thickness according to the nesting typesetting result. The invention improves the precision and efficiency of steel plate material preparation and is suitable for steel box bridges.

Description

Steel plate material preparation method and device for steel box bridge
Technical Field
The invention relates to the technical field of steel structure material preparation, in particular to a steel plate material preparation method and device for a steel box bridge.
Background
With the development of steel structure processing technology, steel box bridges are increasingly widely applied to municipal transportation and highway construction, the steel box bridges are mainly formed by welding (bolting) steel plates, the first key technology of processing is to purchase materials for steel plate materials, stock can be caused by excessive steel plate materials, a project raw material is not enough to form a plurality of material preparation processes due to the insufficient materials preparation, construction period delay is easily caused, and material confusion is easily caused by the repeated material preparation. Therefore, the material preparation work before the processing of the steel box girder bridge is particularly important. The steel structure material preparation method at the present stage is often that technicians prepare materials for initial layout of larger parts contained in the current project according to experience, and even prepare materials according to the blueprint quality general rule, and the material preparation results tend to have larger deviation.
Application number CN201810687380.9 discloses a steel structure material preparation method based on a BIM system and CAD software, which adopts a BIM modeling structure to derive parts, then utilizes a CAD secondary development program to process the parts, and finally derives a flow method of a material preparation table. The method is based on BIM modeling and CAD secondary development steps are complex and tedious, the applicability is not strong, the steel box girder bridge is not of a standard structure, the BIM modeling is required to be carried out by components, the material preparation efficiency is low, and adverse effects are easily caused on the engineering needing to be processed in an emergency in the construction period.
Disclosure of Invention
The invention aims to solve the problems of lower accuracy and efficiency of the existing steel plate material preparation method of the steel box bridge, and provides a steel plate material preparation method and device for the steel box bridge.
The technical scheme adopted by the invention for solving the technical problems is as follows:
in one aspect, a method for preparing a steel plate for a steel box bridge is provided, the method comprising:
classifying the parts of the steel box bridge according to the design drawing, and recording attribute information of various parts in the EXCEL form, wherein the attribute information at least comprises the number, the material, the thickness and the number of the various parts;
drawing the outer contour of each part in the CAD software in a medium proportion, determining the outer contour size of each part, and marking the numbers of each part recorded in the EXCEL form into the CAD software;
importing the EXCEL form and the CAD software into nesting software, wherein the nesting software acquires the materials, thickness and quantity of corresponding parts in the EXCEL form and the outer contour dimension of the corresponding parts in the CAD software according to the numbers of various parts automatically identified, and generates the corresponding parts according to the acquired materials, thickness, quantity and outer contour dimension;
and the nesting software performs nesting typesetting on the generated parts according to the materials and the thicknesses of the parts, and determines the size and the number of the steel plates required under each material and thickness according to the nesting typesetting result.
Further, the step of drawing the outer contours of various parts in the CAD software in a moderate proportion specifically comprises the following steps:
and drawing the outer contour with the same shape and size in CAD software according to the shape and size of various parts.
Further, the drawing of the outer contours of various parts in the CAD software in a medium proportion specifically further comprises:
drawing circumscribed rectangles of the corresponding parts in CAD software according to the shapes and the sizes of the various parts, and taking the circumscribed rectangles as the outer contours of the corresponding parts.
Further, the drawing of the outer contours of various parts in the CAD software in a medium proportion specifically further comprises:
and after combining a plurality of similar parts, drawing circumscribed rectangles of the corresponding combined parts in CAD software according to the shapes and the sizes of the combined parts, and taking the circumscribed rectangles as the outer contours of the corresponding combined parts.
Further, the nesting software performs nesting typesetting on the generated parts according to the materials and the thicknesses of the parts, and specifically comprises the following steps:
and firstly performing nesting typesetting on the parts according to the existing stock steel plates, setting a virtual steel plate according to the material and thickness of the rest parts if the rest parts exist after nesting typesetting, and performing nesting typesetting on the rest parts according to the virtual steel plate.
Further, the setting of the virtual steel plate according to the material and thickness of the remaining parts specifically includes:
step A, setting virtual steel plates with various sizes for each material and thickness of the rest parts, performing jacking typesetting on the rest parts according to the set virtual steel plates with various sizes, and determining the required number of the virtual steel plates with various sizes according to the jacking typesetting result;
b, selecting the virtual steel plates with the required number being greater than a first preset value, judging whether the size and the type of the selected virtual steel plates are smaller than a second preset value, if so, taking the selected virtual steel plates as final virtual steel plates, otherwise, entering the step C;
and C, performing nesting typesetting on the rest parts according to the selected virtual steel plates, and entering the step B after determining the required number of the virtual steel plates with each size according to nesting typesetting results.
Further, the second preset value is less than or equal to 3.
Further, the method further comprises:
and the jacking software derives the size and the number of the steel plates required under the determined materials and thickness to obtain a steel plate stock list of the steel box bridge.
In another aspect, a steel sheet stock apparatus for a steel box bridge is provided, the apparatus comprising at least a processor for executing a computer program implementing the steel sheet stock method for a steel box bridge as set forth in the first aspect.
The beneficial effects of the invention are as follows: according to the steel plate stock preparation method and device for the steel box bridge, related attributes of various parts are recorded in an EXCEL form in a classified mode, the outer contours of the various parts are drawn in CAD software, the stock covering software obtains attribute information and outer contour size information through serial numbers of the zero parts, various parts are further generated in the stock covering software, then the stock covering software performs stock covering typesetting on the parts, and finally the size and the number of steel plates required under various materials and thicknesses can be obtained according to stock covering typesetting results. The method is simple and quick, the steel plate stock preparation accuracy is high, the phenomenon that the stock preparation of the steel plate is insufficient or excessive can be effectively avoided, a reasonable purchasing plan is provided, meanwhile, the stock steel plate can be effectively utilized from a purchasing source, the utilization rate of the steel plate can be effectively improved, and the fund investment of a single project is reduced.
Drawings
Fig. 1 is a schematic flow chart of a steel plate material preparation method for a steel box bridge according to an embodiment of the invention;
FIG. 2 is a schematic diagram of attribute information of various components in the EXCEL form according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the outer contours of components in CAD software according to an embodiment of the present invention;
fig. 4 is an outline schematic diagram of a combined component in CAD software according to an embodiment of the invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The invention provides a steel plate material preparation method and a device for a steel box bridge, which are used for improving the accuracy and the efficiency of steel plate material preparation, and the main technical scheme comprises the following steps: classifying the parts of the steel box bridge according to the design drawing, and recording attribute information of various parts in the EXCEL form, wherein the attribute information at least comprises the number, the material, the thickness and the number of the various parts; drawing the outer contour of each part in the CAD software in a medium proportion, determining the outer contour size of each part, and marking the numbers of each part recorded in the EXCEL form into the CAD software; importing the EXCEL form and the CAD software into nesting software, wherein the nesting software acquires the materials, thickness and quantity of corresponding parts in the EXCEL form and the outer contour dimension of the corresponding parts in the CAD software according to the numbers of various parts automatically identified, and generates the corresponding parts according to the acquired materials, thickness, quantity and outer contour dimension; and the nesting software performs nesting typesetting on the generated parts according to the materials and the thicknesses of the parts, and determines the size and the number of the steel plates required under each material and thickness according to the nesting typesetting result.
It will be appreciated that steel box bridges are typically formed by joining together, by means of all-welded means, top plates, bottom plates, webs, transverse bulkheads, stiffening plates, component plates, flange plates, shear keys, backing plates and the like, wherein the top plates are orthotropic deck plates consisting of cover plates and longitudinal stiffening ribs. The method comprises the steps of firstly carrying out classification statistics on parts of a steel box bridge according to a design drawing, recording classification statistics results in an EXCEL form, wherein the classification statistics results comprise numbers, materials, thicknesses and numbers of various parts, then drawing outlines of the parts in a CAD software according to the parts of each type in a moderate proportion, marking the numbers, and determining the outline size, wherein the shapes of the outline can be identical to the shapes of corresponding parts or can be circumscribed rectangles of the corresponding parts, the EXCEL form and the CAD software are imported into the nesting software, the nesting software can respectively identify the corresponding parts in the EXCEL form and the CAD software according to the numbers of the parts, then the corresponding parts are generated in the nesting software, finally the nesting software automatically performs nesting typesetting on the generated parts, and the sizes and the numbers of the steel plates required under the materials and the thicknesses can be obtained after the nesting typesetting, and the steel plate preparation is completed.
Examples
Referring to fig. 1, the method for preparing steel plates for steel box bridges according to the embodiment of the invention comprises the following steps:
step 1, classifying parts of a steel box bridge according to a design drawing, and recording attribute information of various parts in an EXCEL form, wherein the attribute information at least comprises numbers, materials, thicknesses and numbers of the various parts;
specifically, in this embodiment, first, classifying and counting the parts of the steel box bridge according to the design drawing, mainly including the top plate, the bottom plate, the web plate, the diaphragm plate, the stiffening plate, the part plate, the flange plate, the shear key and the backing plate of the steel box bridge, and then recording the serial numbers, the materials, the thicknesses, the number and other attribute information of various parts in the EXCEL table respectively, where the obtained EXCEL table is referred to fig. 2.
Step 2, drawing the outer contour of each part in the CAD software in a medium proportion, determining the outer contour size of each part, and marking the serial numbers of each part recorded in the EXCEL form into the CAD software;
in the embodiment, for each type of part, a corresponding outer contour is drawn in CAD software at a ratio of 1:1. In practical application, the outer contours of all types of parts can be drawn in one CAD file, and then part numbers corresponding to the EXCEL form are marked in the CAD.
In practical application, the outer contours with the same shape and size can be drawn in CAD software according to the shapes and sizes of various parts, so that the outer contours are ensured to be the same as the shapes of the parts, and the material preparation precision is improved.
Referring to fig. 3, in this embodiment, an external rectangle corresponding to the component may be drawn in CAD software according to the shape and size of each component, and the external rectangle is used as the outer contour of the corresponding component, so that the drawing process may be simplified, and the material preparation efficiency may be further improved.
Referring to fig. 4, in this embodiment, a plurality of similar components may be combined, and then, an external rectangle corresponding to the combined component is drawn in CAD software according to the shape and size of the combined component, and the external rectangle is used as the outer contour of the corresponding combined component, so that the accuracy of material preparation may be further improved. For example, figure 4 shows a trapezoidal piece plate of the flange plate.
Step 3, importing the EXCEL form and the CAD software into nesting software, wherein the nesting software acquires the materials, the thicknesses and the quantity of corresponding parts in the EXCEL form and the outer contour dimension of the corresponding parts in the CAD software according to the numbers of various parts automatically identified, and generates the corresponding parts according to the acquired materials, thicknesses, quantity and outer contour dimension;
specifically, the EXCEL table obtained in the step 1 and the CAD software obtained in the step 2 are imported into the nesting software, the nesting software automatically and correspondingly identifies relevant attribute information of each size part according to the numbers of each type of part, and corresponding parts are generated in the nesting software.
And 4, performing jacking typesetting on the generated parts by the jacking software according to the materials and the thicknesses of the parts, and determining the size and the number of the steel plates required under each material and each thickness according to the jacking typesetting result.
And performing jacking typesetting on the parts in jacking software to obtain the number of steel plates with various materials, thicknesses and width dimensions, thereby performing steel plate stock. Specifically, in this embodiment, firstly, the parts are subjected to nesting typesetting according to the existing stock steel plates, if no remaining parts exist after nesting typesetting, the size and the number of steel plates required under each material and thickness can be directly determined according to the nesting typesetting result, if remaining parts exist after nesting typesetting, a virtual steel plate is set according to the material and the thickness of the remaining parts, and the nesting typesetting is performed on the remaining parts according to the virtual steel plate.
In this embodiment, the step of setting the virtual steel plate includes:
step A, setting virtual steel plates with various sizes for each material and thickness of the rest parts, performing jacking typesetting on the rest parts according to the set virtual steel plates with various sizes, and determining the required number of the virtual steel plates with various sizes according to the jacking typesetting result;
b, selecting the virtual steel plates with the required number being greater than a first preset value, judging whether the size and the type of the selected virtual steel plates are smaller than a second preset value, if so, taking the selected virtual steel plates as final virtual steel plates, otherwise, entering the step C;
and C, performing nesting typesetting on the rest parts according to the selected virtual steel plates, and entering the step B after determining the required number of the virtual steel plates with each size according to nesting typesetting results.
Specifically, when the remaining parts are screened by the nesting steel plate, multiple steel plate widths are set according to the level difference in the range of the common steel plate, the length is set according to the conventional steel plate size, for example, a series of virtual steel plates with the sizes of 1.5m x 20m, 1.55m x 20m, 1.6m x 20m, 1.65m x 20m and … 2.2.2 m x 20m are set, after related nesting and cutting parameters are set, the nesting software performs automatic nesting typesetting, after the nesting is completed, the number of steel plates with various types used in the project is obtained, then the steel plates with more usage is selected under the conditions of various materials and thicknesses, and then virtual nesting is performed again to obtain the steel plate specification and usage until the virtual steel plate with the type smaller than the second preset value specification is selected.
In this embodiment, the second preset value is less than or equal to 3, which is to avoid producing steel plates with various specifications, which is not beneficial to purchasing. Through the above-mentioned cover material typesetting mode, not only can confirm the optimum size steel sheet of material of preparing, improve the material precision of preparing, can also control the steel sheet specification in certain within range, reduce the purchase degree of difficulty.
In order to facilitate the inspection of the staff, the implementation further comprises:
and 5, exporting the size and the number of the steel plates required under the determined materials and thicknesses by the jacking software to obtain a steel plate stock list of the steel box bridge.
Specifically, the final specification and the consumption of the steel plate obtained in the step 4 are exported, a stock list containing data such as the number of sheets, quality, size and the like of stock steel plates can be obtained, a worker can purchase the steel plates according to the stock list, and the number of sheets of the steel plates can be increased appropriately according to actual process conditions.
In summary, the steel plate material preparation method for the steel box bridge is simple and quick, the steel plate material preparation accuracy is accurate, the phenomenon that the material preparation of the steel plate is insufficient or excessive inventory is caused can be effectively avoided, a reasonable purchasing plan is provided, meanwhile, the inventory steel plate can be effectively utilized from a purchasing source, the utilization rate of the steel plate can be effectively improved, purchasing difficulty is reduced, and the fund investment of a single project is reduced.
Based on the above technical scheme, the embodiment also provides a steel plate material preparation device for the steel box bridge, the device at least comprises a processor, and the processor is used for executing the computer program of the steel plate material preparation method for the steel box bridge.
It is understood that, since the steel plate preparation device for the steel box bridge according to the embodiment of the present invention is a device for implementing the steel plate preparation method for the steel box bridge according to the embodiment, for the device disclosed in the embodiment, since the device corresponds to the method disclosed in the embodiment, the description is simpler, and the relevant points refer to the part of the description of the method.

Claims (9)

1. The steel plate material preparation method for the steel box bridge is characterized by comprising the following steps of:
classifying the parts of the steel box bridge according to the design drawing, and recording attribute information of various parts in the EXCEL form, wherein the attribute information at least comprises the number, the material, the thickness and the number of the various parts;
drawing the outer contour of each part in the CAD software in a medium proportion, determining the outer contour size of each part, and marking the numbers of each part recorded in the EXCEL form into the CAD software;
importing the EXCEL form and the CAD software into nesting software, wherein the nesting software acquires the materials, thickness and quantity of corresponding parts in the EXCEL form and the outer contour dimension of the corresponding parts in the CAD software according to the numbers of various parts automatically identified, and generates the corresponding parts according to the acquired materials, thickness, quantity and outer contour dimension;
and the nesting software performs nesting typesetting on the generated parts according to the materials and the thicknesses of the parts, and determines the size and the number of the steel plates required under each material and thickness according to the nesting typesetting result.
2. The method for preparing steel plates for steel box bridges according to claim 1, wherein the step of proportionally drawing the outer contours of various parts in CAD software comprises the following steps:
and drawing the outer contour with the same shape and size in CAD software according to the shape and size of various parts.
3. The method for preparing steel plates for steel box bridges according to claim 1, wherein the step of drawing the outer contours of various parts in the CAD software in a moderate proportion comprises the steps of:
drawing circumscribed rectangles of the corresponding parts in CAD software according to the shapes and the sizes of the various parts, and taking the circumscribed rectangles as the outer contours of the corresponding parts.
4. The steel plate stock method for the steel box bridge as recited in claim 3, wherein the drawing of the outer contours of various parts in the CAD software in a moderate proportion specifically further comprises:
and after combining a plurality of similar parts, drawing circumscribed rectangles of the corresponding combined parts in CAD software according to the shapes and the sizes of the combined parts, and taking the circumscribed rectangles as the outer contours of the corresponding combined parts.
5. The steel plate stock method for the steel box bridge as recited in claim 1, wherein the stock software performs stock typesetting on the generated parts according to the material and thickness of the parts, and specifically comprises:
and firstly performing nesting typesetting on the parts according to the existing stock steel plates, setting a virtual steel plate according to the material and thickness of the rest parts if the rest parts exist after nesting typesetting, and performing nesting typesetting on the rest parts according to the virtual steel plate.
6. The method for preparing steel plates for steel box bridges according to claim 5, wherein the setting of the virtual steel plates according to the material and thickness of the remaining parts comprises:
step A, setting virtual steel plates with various sizes for each material and thickness of the rest parts, performing jacking typesetting on the rest parts according to the set virtual steel plates with various sizes, and determining the required number of the virtual steel plates with various sizes according to the jacking typesetting result;
b, selecting the virtual steel plates with the required number being greater than a first preset value, judging whether the size and the type of the selected virtual steel plates are smaller than a second preset value, if so, taking the selected virtual steel plates as final virtual steel plates, otherwise, entering the step C;
and C, performing nesting typesetting on the rest parts according to the selected virtual steel plates, and entering the step B after determining the required number of the virtual steel plates with each size according to nesting typesetting results.
7. The stock preparation method for steel plates of steel box bridges of claim 6, wherein the second preset value is less than or equal to 3.
8. The steel sheet stock method for a steel box bridge as recited in any one of claims 1 to 7, wherein the method further comprises:
and the jacking software derives the size and the number of the steel plates required under the determined materials and thickness to obtain a steel plate stock list of the steel box bridge.
9. A steel sheet stock arrangement for a steel box bridge, characterized in that the arrangement comprises at least a processor for executing a computer program implementing the steel sheet stock method for a steel box bridge as claimed in any one of claims 1 to 8.
CN202310138938.9A 2023-02-20 2023-02-20 Steel plate material preparation method and device for steel box bridge Pending CN116305629A (en)

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Application Number Priority Date Filing Date Title
CN202310138938.9A CN116305629A (en) 2023-02-20 2023-02-20 Steel plate material preparation method and device for steel box bridge

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Application Number Priority Date Filing Date Title
CN202310138938.9A CN116305629A (en) 2023-02-20 2023-02-20 Steel plate material preparation method and device for steel box bridge

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Publication Number Publication Date
CN116305629A true CN116305629A (en) 2023-06-23

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