摘要
龙潭河特大桥采用连续刚构体系,其桥墩最高达178 m。建立了该桥的动力分析有限元模型,计算了该桥的自由振动频率及振动模态,采用弹性反应谱理论对其进行了地震反应分析,获得了地震反应内力。
Longtanhe bridge is a continuous rigid-framed system, the highest of its piers comes to 178 meters high. In this thesis, a finite element model of dynamic analysis for it is established,its natural frequencies and mode properties are calculated. The earthquake response is analyzed using the elastic response spectrum method,and the internal forces of the earthquake response are obtained.
出处
《公路工程》
2008年第1期36-38,58,共4页
Highway Engineering
基金
中南林业科技大学引进人才启动项目(06Y027)
关键词
高墩大跨连续刚构桥
动力特性
地震反应
反应谱法
High pier-long span continuous rigid-framed bridge
Dynamic characteristics
Seismic Responses
Spectrum response method
