高墩大跨径连续刚构桥双肢墩系梁设置道数与地震响应关系分析  

Influence of Setting Number of Double Limb Pier Collar Beam on the Seismic Response of Long-span Continuous Rigid Frame Bridge with High-rise Piers

作　　者：饶毅刚[1] 

机构地区：[1]贵州省交通规划勘察设计研究院股份有限公司,贵阳550008

出　　处：《交通科技》2014年第4期13-16,共4页Transportation Science & Technology

摘　　要：为了研究系梁设置道数对大跨双肢薄壁高墩连续刚构桥自振特性及地震响应的影响,文中以清水江大桥为背景,利用MIDAS/Civil程序,建立了空间有限元仿真分析模型,分析了系梁的道数对结构自振特性的影响,通过反应谱法讨论了在不同系梁道数下桥梁结构的地震响应规律。In order to study the influence of collar beam setting number of large-span double limb thin- wall high piers of continuous rigid-frame bridge on the natural vibration characteristics and seismic response, taking Qingshui River Bridge as the background, the space finite element simulation analysis model is established by using MIDAS/Civil procedure in this paper. The way of the collar beam is analyzed to study the influence of the setting number on the structural natural vibration characteristics. The influence of different number of collar beam on the seismic response of the bridge structure is dis- cussed by response spectrum method.

关 键 词：大跨连续刚构桥 双肢薄壁高墩 系梁道数 反应谱法 地震响应 

分 类 号：U448.215[建筑科学—桥梁与隧道工程]