Monitoring based assessment of a jointless bridge
Monitoring based assessment of a jointless bridge
复制标题
DOI：
10.1201/b12352-127
复制
发表时间：
2012
期刊：
影响因子：
--
通讯作者：
A. Strauss;Alexander Krawtschuk;R. Wan‐Wendner;D. Frangopol;K. Bergmeister
中科院分区：
文献类型：
--
作者：
A. Strauss;Alexander Krawtschuk;R. Wan‐Wendner;D. Frangopol;K. Bergmeister
在传统的结构设计中，通常假定结构的整体响应以及土-结构相互作用为线弹性行为。虽然这种假设大大简化了设计过程，特别是对于要研究的大量负载情况，但它与高度的不确定性有关。荷载工况简单叠加产生的误差对于某些结构来说意义不大，但对于承受徐变、收缩、温度过程和土压力等时变约束荷载的超静定框架结构来说，这一点就不成立了。在本文中，线性假设，通常是在框架桥的设计，并最终管理性能将提出和讨论的基础上，现有的桥梁监测信息。特别是，不确定的土-结构相互作用和结构的混凝土桥面和土壤之间的过渡区的细节进行了研究。
In traditional structural design, linear elastic behavior is typically assumed for the global structural response as well as for the soil-structure interaction. Although this assumption simplifies the design process greatly, in particular with regard to the multitude of load situations that are to be investigated, it is associated with a high degree of uncertainty. While errors resulting from simple superposition of load cases are of little significance for some structures, this is not true for statically indeterminate frame structures subjected to time variant constraint loads resulting from creep, shrinkage, temperature processes and earth pressure. Within this paper, linearity assumptions that are typically made in the design of frame bridges and ultimately govern performance will be presented and discussed on the basis of available monitoring information for an existing bridge. In particular, the uncertain soil-structure interaction and the structural detail for the transition area between concrete deck and soil are investigated.