摘要
针对连续梁桥,采用MIDAS/CIVIL有限元软件建立动力分析模型,对分别采用普通板式橡胶支座和铅芯隔震橡胶支座的工况进行时程分析,并考虑不同墩高和结构形式,着重研究减隔震支座对桥墩在地震荷载作用下的减震效果。通过对比分析,总结减隔震支座在连续梁桥中的合理适用范围。
Aiming at continuous beam bridges,this paper establishes a dynamic analysis model by means of MIDAS / CIVIL finite element software,performs time- procedure analysis for operating conditions in which common plate type rubber bearing and lead- core isolation rubber bearing are adopted respectively,and emphasizes on study of the damping effect of seismic mitigation and isolation bearings on piers in consideration of different heights and structural forms of piers. Based on comparative analysis,the paper concludes the reasonable applicable scope of seismic mitigation and isolation bearings in continuous beam bridges.
出处
《公路交通技术》
2015年第6期32-37,共6页
Technology of Highway and Transport
基金
云南省交通运输厅科技计划项目(云交科2011(LH)13-a)
关键词
减隔震
连续梁桥
减隔震支座
抗震性能
适用范围
seismic mitigation and isolation
continuous beam bridge
seismic mitigation and isolation bearing
seismic resistance
applicable scope
