基于模糊的分析层次流程和监控数据的制造小型盒子支架桥的安全评估
Hongyin Yang1,2, Liangwei Jiang1, Feng Xu1
1School of Civil Engineering and Architecture, Wuhan Institute of Technology, Wuhan 430073, China.
Sensors (Basel, Switzerland)
|July 27, 2024
概括
本研究提出了一种新的安全评估方法,用于使用模糊分析层次过程 (FAHP) 和结构健康监测 (SHM) 数据制造的小盒子梁桥. 该方法通过分析应力,变形和温度,有效评估桥梁安全性,确保结构完整性.
科学领域:
- 土木工程 土木工程是指土木工程.
- 结构工程 结构工程
- 桥梁安全评估
背景情况:
- 制造的小型箱梁桥面临着重大安全风险,包括结构退化和潜在的故障.
- 迫切需要强大的安全评估方法来有效管理这些风险.
研究的目的:
- 量化评估一个制造的小盒子梁桥的安全状态.
- 开发和验证一种新的安全评估方法,集成模糊分析层次过程 (FAHP) 和结构健康监测 (SHM) 数据.
主要方法:
- 建立了一个模糊分析层次过程 (FAHP) 模型,将压力,变形和温度作为关键评估因素.
- 使用行业标准和广泛的SHM数据分析来确定应力和变形的安全门.
- 使用ANSYS,HYPERMESH和TAITHREM模拟和分析了桥梁的温度场,以确定最不利的温度梯度作为安全值.
- 通过计算基于测量的SHM数据的指数得分来定量评估桥梁安全.
主要成果:
- 根据行业规格和SHM数据,确定了安全门,被认为是合理和可靠的.
- 开发的温度场模拟模型与测量结果一致,准确预测桥梁温度梯度.
- 来自FAHP模型的安全评估结果与实地测试结果精确一致,证实了该方法的有效性.
结论:
- 拟议的FAHP和SHM综合方法为制造的小箱梁桥的定量安全评估提供了一种有效和适用的方法.
- 该研究验证了通过将行业标准与大规模的SHM数据相结合而设定的门的可靠性.
- 通过模拟准确地确定温度梯度,进一步提高了安全评估的可靠性.
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