...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International journal of lifecycle performance engineering >Structural damage identification of steel-concrete composite bridge under temperature effects based on cuckoo search
【24h】

Structural damage identification of steel-concrete composite bridge under temperature effects based on cuckoo search

机译：基于布谷鸟搜索的温度效应下钢-混凝土组合桥的结构损伤识别

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Civil structures are generally exposed to varying temperature conditions. Temperature variations in structural components not only cause quasi-static responses like displacement and stress, but also lead to changes in vibration features, such as frequencies and mode shapes. Damage identification is usually based on the vibration characteristics, which is easily affected by temperature. This means that the accuracy of identification is not guaranteed without considering the temperature effects. In the paper, temperature is considered as a variable in material properties, and the finite element model of I-40 steel-concrete composite bridge is established based on MATLAB platforms in order to figure out its vibration features. Then cuckoo search (CS) is introduced to damage identification under temperature variations. It is shown that cuckoo search is able to distinguish experimental structure damages from temperature variations.
机译：土木结构通常暴露于变化的温度条件下。结构部件中的温度变化不仅会引起诸如位移和应力之类的准静态响应，还会导致振动特征（例如频率和振型）发生变化。损坏的识别通常基于振动特性，该特性容易受到温度的影响。这意味着不考虑温度影响就无法保证识别的准确性。在本文中，温度被认为是材料性能的变量，并基于MATLAB平台建立了I-40型钢-混凝土复合桥的有限元模型，以了解其振动特性。然后引入杜鹃搜索（CS）来识别温度变化下的损坏。结果表明，杜鹃搜索能够区分温度变化对实验结构的损害。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号