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Earthquake vulnerability analysis method and device for highway bridge and terminal equipment

A technology of highway bridges and analysis methods, applied in neural learning methods, design optimization/simulation, special data processing applications, etc., can solve problems such as inaccurate evaluation of seismic performance of urban and urban bridges

Pending Publication Date: 2022-03-11
SHIJIAZHUANG TIEDAO UNIV
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Problems solved by technology

[0005] In order to overcome the technical problem of inaccurate evaluation of the seismic performance of urban and urban bridges in the related art, the embodiment of the present application provides a method, device and terminal equipment for analyzing the seismic vulnerability of highway bridges

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  • Earthquake vulnerability analysis method and device for highway bridge and terminal equipment
  • Earthquake vulnerability analysis method and device for highway bridge and terminal equipment
  • Earthquake vulnerability analysis method and device for highway bridge and terminal equipment

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Embodiment Construction

[0046] In the following description, specific details such as specific system structures and techniques are proposed for explanation, such as specific details, such as specific system structures, and techniques. However, it will be apparent to those skilled in the art that the present application can also be implemented in other embodiments without these specific details. In other cases, a detailed description of well known systems, devices, circuits, and methods is omitted to prevent unnecessary details to prevent the presentation.

[0047] It should be understood that when used in the present application and the appended claims, the term "comprising" indicates the existence described in the description, the overall, steps, operations, elements, and / or components, but does not exclude one or more other Features, overall, steps, operations, elements, components, and / or their set presence or addition.

[0048] It should also be understood that terms "and / or" as used in the pr...

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Abstract

The invention is suitable for the technical field of regional earthquake risk assessment, and provides a highway bridge earthquake vulnerability analysis method and device and terminal device.The method comprises the steps that a bridge failure probability model is determined according to a bridge structure and earthquake vibration characteristics; establishing a bridge fine finite element model and performing nonlinear dynamic time-history analysis on the bridge fine finite element model to obtain a linear relationship between the seismic oscillation intensity index and the seismic demand of the seismic related component; calculating a bridge failure probability according to the linear relation and a bridge failure probability model; an artificial neural network is adopted to learn the incidence relation between the bridge structure and the bridge failure probability and between the seismic oscillation characteristics and the bridge failure probability, a plurality of highway bridge seismic vulnerability models are obtained, the highway bridge seismic vulnerability models are trained, and a highway bridge seismic vulnerability optimal model is obtained. And determining the earthquake vulnerability of the highway bridge based on the highway bridge earthquake vulnerability optimal model. According to the invention, the earthquake vulnerability of the highway bridge can be rapidly and accurately obtained.

Description

Technical field [0001] The present application belongs to the technical field of regional seismic risk assessment, in particular, involving earthquake seismic volatile analysis methods, devices and terminal equipment. Background technique [0002] With the advancement of urbanization, there have been a large number of urban road bridges in all cities in my country, which greatly promotes the exchange of material culture. However, the highway bridge is a complex system consisting of a plurality of structural members such as a bridge, a bearing and a pier, and is easily subjected to nonlinear damage and destruction under seismic action. [0003] The current method of seismic performance assessment for regional highway bridges mainly includes expert opinion, empirical, testing, numerical simulation, classification, etc. Although these methods have a wide range of applications in the project, there are some shortcomings. The expert opinion method is larger, and the analysis results o...

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Application Information

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IPC IPC(8): G06F30/13G06F30/23G06F30/27G06N3/08G06F111/08G06F119/02G06F119/14
CPCG06F30/13G06F30/23G06F30/27G06N3/08G06F2111/08G06F2119/02G06F2119/14
Inventor 刘振亮赵存宝张耀
Owner SHIJIAZHUANG TIEDAO UNIV
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