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Method for determining post-earthquake repair scheme of underground subway station

A technology for underground stations and determination methods, applied in special data processing applications, instruments, electrical digital data processing, etc.

Active Publication Date: 2022-02-18
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem that in the prior art, there is no relevant dynamic visualization technology to show the post-earthquake state, which makes it difficult to determine the repair plan for the post-earthquake state of the subway underground station. A post-earthquake repair plan determination for the subway underground station is now proposed method

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  • Method for determining post-earthquake repair scheme of underground subway station
  • Method for determining post-earthquake repair scheme of underground subway station
  • Method for determining post-earthquake repair scheme of underground subway station

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specific Embodiment approach 1

[0020] Specific implementation mode one: combine figure 1 Specifically illustrate the present embodiment, the post-earthquake restoration scheme determination method of a kind of subway underground station in the present embodiment, comprises the following steps:

[0021] Step 1. Establish the BIM model of the subway underground station based on CAD drawings and other known 3D model data, and define the representation method of the component state, which can visually display the structural and non-structural components of the subway underground station (including filling walls, ceilings and equipment, etc.) The state after the earthquake and during the repair process; the model is a three-dimensional subway underground station model;

[0022] Step 2: Obtain the post-earthquake initial state of each component of the subway underground station, and at the same time calculate and collect data on the repair cost and repair time required for each structural component and non-struct...

specific Embodiment approach 2

[0034] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that in the first step, the colors corresponding to the states of structural and non-structural components in the BIM model are defined as figure 1 , shown in Table 1 and Table 2;

[0035] figure 1 It is the damage state diagram of each component under a certain subway station damage. When the column component is severely damaged, it is red; when the column component is moderately damaged, it is orange; when the column component is slightly damaged, it is yellow; when the column component is slightly damaged When the column member is repaired, it is blue; when the column member is repaired and in good condition, it is white or its original color;

[0036] Table 1 Different states and corresponding colors of structural components

[0037]

[0038]

[0039] Table 2 Different states and corresponding colors of non-structural components

[0040]

[0041] Other steps and pa...

specific Embodiment approach 3

[0042] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is that said step two obtains the post-earthquake initial state of each component of the subway underground station, and the specific process includes:

[0043] Under a certain earthquake intensity, collect the existing experimental or earthquake damage data as the vulnerability function data of the subway underground station. The vulnerability function data includes the median value and the logarithmic standard deviation, and is established according to the vulnerability function data vulnerability function;

[0044] The fragility function F(edp) indicates that under a certain engineering demand parameter (EDP), such as ground peak acceleration (PGA), floor peak acceleration (PFA), etc., the state of structural or non-structural components reaches or exceeds a certain the probability of a broken state;

[0045] According to the fragility function, the exceeding probabi...

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Abstract

The invention discloses a method for determining a post-earthquake repair scheme of an underground subway station, and belongs to the field of earthquake engineering. The method solves the problem that in the prior art, no related dynamic visualization technology for showing the post-earthquake state exists, so that a repairing scheme is not easy to determine according to the post-earthquake state of the subway station. The method comprises the following steps: establishing a subway station BIM model; defining post-earthquake states of components in the BIM model; obtaining the post-earthquake initial state of each component of the subway station, and calculating and collecting the repair cost and repair time required by each component in each damage state; importing the defined post-earthquake initial state, the restoration cost and the restoration time into the BIM model to be displayed; determining a repair scheme according to the displayed post-earthquake initial state, the repair cost and the repair time; dynamically displaying the repair scheme in the BIM model; and repeating the steps for N times to obtain the expected values of the post-earthquake state and the repair time of the subway station, which are used for evaluating the earthquake resistance toughness of the subway station. The method is used for determining the post-earthquake repair scheme of the subway station.

Description

technical field [0001] The invention relates to a method for determining a post-earthquake restoration scheme of a subway underground station. It belongs to the field of earthquake engineering. Background technique [0002] With the rapid development of urban subways in my country, the seismic performance of subway underground stations has become the focus of research on disaster prevention and mitigation. The current research focuses on the earthquake damage mechanism and seismic performance of the subway underground station structure, and there is no systematic study on the repair scheme of the subway underground station after the earthquake. After the earthquake, decision makers need to quickly and comprehensively control the post-earthquake state of subway underground stations in order to effectively guide the development of earthquake relief work. [0003] However, at present, the combination with BIM, CAD and other software can only achieve the level of static displa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F119/02
CPCG06F30/20G06F2119/02
Inventor 温卫平胡杰李广伟翟长海
Owner HARBIN INST OF TECH
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