双层高架桥拟静力试验研究  

Pseudo-static Test Study on Double-deck Viaducts

作　　者：张洁[1] 李建中[1] 管仲国[1] 

机构地区：[1]同济大学桥梁工程系,上海200092

出　　处：《结构工程师》2012年第6期128-133,共6页Structural Engineers

摘　　要：以洛塘河双层高架桥为工程背景,进行了两个不同墩柱配筋率的桥墩模型拟静力试验。重点研究了墩柱纵筋配筋率对双层高架桥桥墩抗震性能的影响。结果表明,合理的墩柱纵筋配筋率可以更好地保证塑性铰出现在墩柱上,有效减小梁端和梁柱节点核心区的破坏程度,进而提高横向地震作用中桥墩的延性。In this paper, two typical double-deck viaduct models with different reinforcement ratio were tested using the pseudo-static test method. The results show that reasonable reinforcement ratio of the column ensured column plastic hinges develop earlier, reduced damages in the beam and joint effectively, and improved the ductility capacity of the double-deck viaducts under lateral seismic loading.

关 键 词：双层高架桥 拟静力试验 桥墩纵筋配筋率 抗震性能 

分 类 号：U448.28[建筑科学—桥梁与隧道工程] U441[交通运输工程—道路与铁道工程]