CN-121997647-A - Method and device for establishing model of multi-ribbed steel plate structure and storage medium

CN121997647ACN 121997647 ACN121997647 ACN 121997647ACN-121997647-A

Abstract

The invention provides a model building method device and a storage medium of a multi-ribbed steel plate structure, wherein the method comprises the steps of generating a plane position projection diagram of each layer of structural member based on the multi-ribbed steel plate structure; and generating a finite element three-dimensional geometric model based on the plane position projection diagram. According to the invention, the stiffening rib plane projection diagram is built, and then the finite element three-dimensional geometric model is built by importing the stiffening rib plane projection diagram into finite element software, so that not only can the common node of the transverse wall and the longitudinal wall when the transverse wall and the longitudinal wall are mutually communicated be ensured, but also the common node of the transverse rib and the longitudinal rib of the plate and the rib plate in the longitudinal wall of the transverse wall and the continuity of the wallboard for transmitting loads can be ensured.

Inventors

SUN XIAOYING
LIU ZIQIAO
DONG PENGXIANG
GAN YINGYING
CHEN JIAN
WANG SHAOJIE

Assignees

中国核电工程有限公司

Dates

Publication Date: 20260508
Application Date: 20260113

Claims (14)

1. The method for establishing the model of the multi-ribbed steel plate structure is characterized by comprising the following steps of: Generating a plane position projection diagram of each layer of structural member based on the multi-ribbed steel plate structure; establishing a stiffening rib plane projection diagram based on the plane position projection diagram; And generating a finite element three-dimensional geometric model based on the stiffening rib plane projection map.
2. The modeling method of a multi-ribbed steel plate structure according to claim 1, wherein generating a plan position projection view of each layer of structural member based on the multi-ribbed steel plate structure includes: projecting the two-dimensional plane graph of each layer of the multi-ribbed steel plate structure to a horizontal plane to generate a preliminary position projection graph; and establishing the plane position projection diagram based on the preliminary position projection diagram.
3. The modeling method of a multi-ribbed steel plate structure as claimed in claim 2, wherein building the planar position projection map based on the preliminary position projection map includes: And adjusting the thickness of the upper wall body inconsistent with the thickness of the lower wall body in the initial position projection diagram to be consistent with the thickness of the lower wall body so as to establish the plane position projection diagram.
4. A method of modeling a multi-ribbed steel plate structure as claimed in claim 3, wherein building the planar positional projection map based on the preliminary positional projection map further includes: And adjusting an upper wall body, which deviates from the wall line of the lower wall body by less than a deviation threshold value, in the preliminary position projection diagram to the same position as the lower wall body so as to establish the plane position projection diagram.
5. A method of modeling a multi-ribbed steel plate structure as claimed in claim 3, wherein building a stiffener plan projection view based on the plan position projection view includes: and arranging the stiffening ribs in the wall body of the plane position projection graph at equal intervals so as to establish the stiffening rib plane projection graph.
6. The method of modeling a multi-ribbed steel plate structure of claim 5, wherein said structural member further includes a floor slab, wherein a stiffener plan projection is created based on said plan position projection, further comprising: The floor is a one-way plate, and the extending direction of the stiffening ribs is parallel to the short side direction of the floor.
7. The method of modeling a multi-ribbed steel plate structure as claimed in claim 1, wherein generating a finite element three-dimensional geometric model based on the stiffener plan projection view includes, The finite element three-dimensional geometric model is built by segmenting lines in the stiffener plane projection map at intersections by boolean operations.
8. The method of modeling a multi-ribbed steel plate structure of claim 7, wherein generating a finite element three-dimensional geometric model based on the stiffener plan projection view further includes, Generating a stiffening rib plane projection reference plane based on the stiffening rib plane projection graph; and generating the finite element three-dimensional geometric model based on the stiffening rib plane projection datum plane.
9. The method of modeling a multi-ribbed steel plate structure as claimed in claim 8, wherein generating the finite element three-dimensional geometric model based on the stiffener plane projection datum plane includes, Dividing the stiffening rib plane projection datum plane into a plurality of sub datum planes; generating the finite element three-dimensional geometric model based on the plurality of sub-reference surfaces.
10. The method of modeling a multi-ribbed steel plate structure as claimed in claim 9, wherein generating the finite element three-dimensional geometric model based on the plurality of sub-reference surfaces includes, Adjusting the vertical positions of a plurality of the sub-standard surfaces to generate an initial three-dimensional geometric model; The finite element three-dimensional geometric model is generated based on the initial three-dimensional geometric model.
11. A mold building device of a multi-ribbed steel plate structure, comprising: a first projection view establishing module for generating a plane position projection view of each layer of structural member based on the multi-ribbed steel plate structure; The second projection drawing building module is used for building a stiffening rib plane projection drawing based on the plane position projection drawing; And the model building module is used for generating a finite element three-dimensional geometric model based on the stiffening rib plane projection graph.
12. A computer-readable storage medium, characterized in that the computer-readable storage medium comprises a stored computer program, wherein the computer program is executable by an electronic device to perform the method of any one of claims 1 to 10.
13. A computer program product comprising a computer program, characterized in that the computer program, when being executed by a processor, implements the steps of the method as claimed in any one of claims 1 to 10.
14. An electronic device comprising a memory and a processor, characterized in that the memory has stored therein a computer program, the processor being arranged to execute the method according to any of the claims 1 to 10 by means of the computer program.

Description

Method and device for establishing model of multi-ribbed steel plate structure and storage medium Technical Field The invention relates to the technical field of finite element modeling analysis, in particular to a method and a device for establishing a model of a multi-ribbed steel plate structure and a storage medium. Background In the nuclear power field, reinforced concrete structures are generally adopted in nuclear safety related plants, but the concrete structures have large self weight, poor ductility and difficult guarantee of construction quality. Relatively, the steel structure has lighter dead weight, high strength, good ductility, easy modularization and adoption of an assembly type construction mode, is favorable for guaranteeing the processing quality, can not be influenced by natural conditions basically, and has high mechanization degree of production and installation. Therefore, nuclear safety-related plants are exploring an all-steel structural style of multi-ribbed double steel plate. Because of the complexity of the nuclear power structure and the multi-ribbed double-steel plate type, no special modeling and analysis software exists at present, and modeling and analysis can only be performed by relying on general finite element software (such as ANSYS or ABAQUS). In the prior art, the cross section properties of the general finite element software (such as ANSYS or ABAQUS) are not built in, so that the cross section configuration of the double-steel-plate stiffening rib can be described, and the method can only be realized by respectively modeling and bonding the upper steel plate, the lower steel plate and the middle stiffening rib, and the nodes of the upper steel plate, the lower steel plate and the middle stiffening rib are possibly not in one-to-one correspondence and are required to be connected in a coupling mode. Different from civil buildings, the wall body arrangement positions of different layers of the nuclear power plant are not the same, and no standard layer exists. Generally speaking, the positions of the walls on the upper layer and the lower layer of the nuclear power plant are not in one-to-one correspondence, so that the wall lines are misplaced, disappear or increase, and for the wall body with double steel plate stiffening ribs, the situation is more complicated, and the upper layer and the lower layer cannot share the nodes due to discontinuous wall lines. Because the wall and the plate are both in the form of double steel plate stiffening ribs, the node modeling of wallboard connection is more complex, the respective steel plates of the wall and the plate are hardly positioned and coordinated, and the wall and the plate are connected in a coupling mode. The requirement of the coupling modeling can lead to a large number of constraint equations in the finite element model, so that the solving speed is slow, and the analysis progress is influenced. In addition, if the stiffening rib modeling is omitted, the stiffening rib direction is possibly deflected by adopting a mode of connecting steel plate nodes at two sides to form the stiffening rib, and is inconsistent with the horizontal X, Y direction in design, so that a force transmission path is changed, analysis accuracy is affected, and sometimes, the direction of the stiffening rib in the floor slab is flexibly changed according to the change of the design condition of the unidirectional plate or the bidirectional plate, so that the difficulty of modeling the stiffening rib of the floor slab is further increased. In order to solve the technical problems, the prior art, such as CN103353906B, discloses a stress deformation analysis method of a turntable table, which comprises the steps of firstly measuring data of the turntable according to a turntable entity, establishing a turntable table parameterized geometric model by adopting CAD software Pro/ENGINEER according to measured table data, storing the CAD turntable table parameterized geometric model into an IGES format file, importing the IGES format file of the turntable table into CAE software ANSYS, setting related attribute parameters, carrying out grid division on the turntable parameterized geometric model in the CAE software, setting constraint conditions and applied loads according to actual working conditions of the turntable table in the CAE software, solving and calculating in the CAE software, and observing analysis results. However, the prior art solutions do not completely solve the above-mentioned technical problems. Disclosure of Invention In order to solve the technical problems, the invention provides a method and a device for establishing a model of a multi-ribbed steel plate structure and a storage medium. The invention provides a method for establishing a model of a multi-ribbed steel plate structure, which comprises the steps of generating a plane position projection diagram of each layer of structural member based on the multi-ribbed steel