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Cable-stayed bridge cable force optimization method, device, equipment and readable storage medium

A technology for cable-stayed bridge cables and optimization methods, applied in the field of devices, equipment and readable storage media, cable force optimization methods for cable-stayed bridges, can solve the problem of degrading cable force optimization efficiency and automation, increasing the difficulty of cable force optimization, etc. problem, to achieve the effect of improving the degree of automation control and reducing the difficulty

Active Publication Date: 2019-11-19
WUHAN INSTITUTE OF TECHNOLOGY
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  • Claims
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AI Technical Summary

Problems solved by technology

[0003]Currently, the methods for optimizing cable forces for cable-stayed bridges through finite element analysis software mainly include: zero displacement method, minimum bending energy method, minimum cable amount method and influence matrix These methods all need to iteratively optimize multiple cable forces so that all cable forces conform to the bridge force. , which not only damages the optimization efficiency and degree of automation of all cable forces, but also increases the difficulty of optimizing all cable forces

Method used

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  • Cable-stayed bridge cable force optimization method, device, equipment and readable storage medium
  • Cable-stayed bridge cable force optimization method, device, equipment and readable storage medium
  • Cable-stayed bridge cable force optimization method, device, equipment and readable storage medium

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Embodiment 1

[0047] Such as figure 1 The cable force optimization method for the cable-stayed bridge shown includes the following steps:

[0048] Step 1, establish the cable-stayed bridge model by the space finite element analysis software, the cable-stayed bridge model includes beam unit and a plurality of truss units positioned on the beam unit;

[0049] Step 2. Based on the cable force sets corresponding to all truss elements and the static load cases predefined in the space finite element analysis software, the load combination case is solved;

[0050] Step 3. Carry out internal force analysis on the cable-stayed bridge model based on the combined load conditions to obtain the structural response results;

[0051] Step 4. Based on the structural response results, check whether the cable-stayed bridge model conforms to a reasonable bridge state. If yes, complete the cable force optimization of the cable-stayed bridge and end the process. If not, perform step 5;

[0052]Step 5. Filter ...

Embodiment 2

[0115] Such as Figure 13 The cable force optimization device of the cable-stayed bridge shown includes: a model building module, which is used to establish a cable-stayed bridge model through space finite element analysis software; The static load case defined in the space finite element analysis software solves the load combination case; the internal force analysis module is used to analyze the internal force of the cable-stayed bridge model based on the load combination case to obtain the structural response results; the state inspection module uses Based on the structural response results, it is used to check whether the cable-stayed bridge model conforms to the reasonable completed bridge state. If so, the cable force optimization of the cable-stayed bridge is completed and the process ends; the point set screening module is used when the cable-stayed bridge model conforms to the reasonable completed bridge state. , select the control point set according to the structural...

Embodiment 3

[0126] Such as Figure 14The computing device shown includes: a memory configured to store a computer program; a processor configured to communicate with the memory and execute a computer program. When the processor executes the computer program, any one of the implementation modes described in the first embodiment Cable-stayed bridge cable force optimization method.

[0127] In some implementations, the computing device can be any one of a PC computer, a notebook, and a server, and those skilled in the art should understand that the computing device can realize the cable pull described in any one of the first embodiments when running a computer program. The bridge cable force optimization method is sufficient.

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Abstract

The invention relates to the technical field of bridge engineering, and provides a cable-stayed bridge cable force optimization method, a device, equipment and a readable storage medium. The method comprises the steps of building a cable-stayed bridge model through space finite element analysis software; solving a load combination working condition based on the cable force set and the static loadworking condition; performing internal force analysis on the cable-stayed bridge model based on the load combination working condition to obtain a structure response result; whether the cable-stayed bridge model conforms to a reasonable bridge forming state or not is checked based on the structure response result, if yes, cable-stayed bridge cable force optimization is completed, and if not, a control point set is screened out according to the structure response result; solving an influence matrix corresponding to the control point set based on the load combination working condition; exportingthe influence matrix and the cable force set out of space finite element analysis software; and optimizing the cable force set based on the influence matrix, and returning the optimized cable force set to the space finite element analysis software to iteratively optimize the cable force set until the cable-stayed bridge model conforms to a reasonable bridge forming state, so that the cable forceoptimization efficiency and difficulty of the cable-stayed bridge can be well considered.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a cable force optimization method, device, equipment and readable storage medium of a cable-stayed bridge. Background technique [0002] In related technologies, optimizing cable forces for cable-stayed bridges through spatial finite element analysis software has become an important research in the structural design process of cable-stayed bridges, which can well lay a theoretical and construction foundation for cable-stayed bridge design. [0003] At present, the methods of optimizing cable forces for cable-stayed bridges through finite element analysis software mainly include: zero displacement method, minimum bending energy method, cable quantity minimum method and influence matrix method, etc. Make all cable forces conform to bridge cable forces. In the process of iteratively optimizing all cable forces, it is more necessary to judge whether all cable forces confor...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 李元松段力祁超杨恒何泉周小龙杨毛毛
Owner WUHAN INSTITUTE OF TECHNOLOGY
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