同济大学学报（自然科学版）2013，Vol.41Issue(3)：342-347,6.DOI:10.3969/j.issn.0253-374x.2013.03.005
柔性横系梁双柱墩的抗震行为分析
Seismic Behavior Analysis for Link Beam of Double-column Bent
摘要
Abstract
To explore what seismic behavior effects link beam will have on its double-column bent based on pushover analysis method. The elastic-plastic fiber surface element is applied to the construction of three respective models-single-column bent model, double-column bent model and link beam double-column bent model, to study the difference of double-column bent model, to study the difference of capacity on the top pier, displacement ductility factor and force acting on the foundation by changing the stiffness of link beam. The analysis results indicate that with the increasing stiffness of link beam, there will be a decreasing trend of displacement ductility capacity on the top pier, a gradual increase of displacement ductility factor and load-carrying capacity of piers, thus more lateral force capacity will be passed to the foundations. For the regular pier, the maximum plastic displacement on the top pier of the link beam of double-column is slightly smaller than that of single column bent, and its displacement ductility capacity can be calculated as that of single column bent.关键词
横系梁/抗震行为/Pushover分析/塑性位移/位移延性系数Key words
link beam/ seismic behavior/ Pushover analysis/ plastic displacement/ displacement ductility factor分类
交通工程引用本文复制引用
沈星,叶爱君,王晓伟..柔性横系梁双柱墩的抗震行为分析[J].同济大学学报（自然科学版）,2013,41(3):342-347,6.基金项目
国家自然科学基金(90815007) （90815007）
