Method for evaluating safety state of elevated structure of urban rail transit

A technology for urban rail transit and safety status, which is applied in the field of safety assessment of urban rail transit elevated structures, and can solve the problem that there is no standard for the classification of safety status of rail transit elevated bridges.

Inactive Publication Date: 2016-11-09
昆山市轨道交通投资发展有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The safety status of rail transit elevated structures can be obtained through on-site disease investigation and testing of structural safety-related indicators, but there is no clear classification standard for the safety status of rail transit viaducts

Method used

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  • Method for evaluating safety state of elevated structure of urban rail transit
  • Method for evaluating safety state of elevated structure of urban rail transit
  • Method for evaluating safety state of elevated structure of urban rail transit

Examples

Experimental program
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Embodiment

[0045] Such as Figure 1-2 As shown, according to the structural composition of the rail transit viaduct, it is divided into components, components and sub-projects. The main components of each component are shown in Table 1.

[0046] Table 1 Structural composition of rail transit elevated safety assessment

[0047]

[0048] According to the structural characteristics represented by each sub-item of the component, the corresponding structural safety assessment and detection indicators are determined. The specific assessment items are shown in Table 2.

[0049] Table 2 Rail Transit Viaduct Safety Assessment Items

[0050]

[0051]

[0052] The grading and evaluation standards of the corresponding sub-items in Table 2 are based on the grading and evaluation of each detection index of the components, referring to "JTGT H21-2011 Technical Status Evaluation Standards for Highway Bridges", "JTGT J21-2011 Highway Bridge Bearing Capacity Testing and Evaluation Regulations", ...

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PUM

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Abstract

The invention relates to a method for evaluating a safety state of an elevated structure of urban rail transit. The method is used for performing overall safety state evaluation and grading on an elevated bridge of the urban rail transit. The method comprises the following steps of 1) determining an evaluation structure for evaluating the safety state of the elevated bridge of the urban rail transit, and corresponding evaluation indexes; 2) obtaining a technical condition score of a sub-item corresponding to each member of each part of the to-be-evaluated elevated bridge of the urban rail transit; 3) obtaining a safety state score of each corresponding part of the to-be-evaluated elevated bridge of the urban rail transit; 4) obtaining an overall safety state score of the to-be-evaluated elevated bridge of the urban rail transit; and 5) finally obtaining a safety state level of the to-be-evaluated elevated bridge of the urban rail transit, and designing maintenance measures according to the safety level. Compared with the prior art, the method has the advantages of comprehensive consideration, complete evaluation, reasonable grading, wide applicability and the like.

Description

technical field [0001] The invention relates to the safety assessment of the elevated structure of urban rail transit, in particular to a method for evaluating the safety state of the elevated structure of urban rail transit. Background technique [0002] Due to the characteristics of large capacity, high speed, safety, and energy saving of urban rail transit, rail transit has developed rapidly in the process of urban transportation construction. Among them, a large number of rail transit viaduct structures are facing challenges to their structural safety under the influence of increasing operating loads and the surrounding dense construction environment during their service. With the increase of operation time, the problem of structural disease has become more and more prominent. Structural diseases such as rail damage, uneven line, poor appearance of beam concrete, strength decline, corrosion and exposure of steel bars, geometric overrun of bearings, and uneven settlement ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/08
CPCG06Q10/06393G06Q50/08
Inventor 吴楠肖军华赵志国张德任捷刘辉孟涛
Owner 昆山市轨道交通投资发展有限公司
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