Structural Performance Evaluation of Existing Bridges Based on Acceleration Monitoring

被引：0
|
作者：
Tokunaga M. [1 ]
Ikeda M. [1 ]
机构：
[1] Structural Mechanics Laboratory, Railway Dynamics Division
来源：
Quarterly Report of RTRI (Railway Technical Research Institute) | 2023年 / 64卷 / 02期
关键词：
acceleration integration; beam theory; deflection monitoring; rebar stress; structural performance;
D O I：
10.2219/RTRIQR.64.2_115
中图分类号：
学科分类号：
摘要：
The aim of this study is to enable monitoring of structural performance conditions of concrete girders. We first developed a method to restore displacement waveforms using acceleration waveforms from passing trains by utilizing the linear vibration theory. Numerical experiments have shown that the method can estimate the maximum displacement within an error margin of approximately 5%. Furthermore, the equivalent linearized beam theory was extended to estimate reinforcing bar stress waveforms using the displacement waveform. These methods realized the structural performance evaluation of bridges such as riding comfort and fatigue fracture from acceleration measurements. © 2023 Ken-yusha Inc.. All rights reserved.
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页码：115 / 120
页数：5
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