CAJ | 학술논문

结合一座大跨度连续刚构桥实例，分析了在地震作用下该种桥梁的地震反应，通过改造桥梁形式，减小结构地震力。分析表明，刚构桥的基本周期较短，地震力较大；改造成采用减隔震支座的连续梁桥后，墩柱的地震力明显下降，桩基的轴力也下降明显，但是对于桩基的弯矩减小不大，但是整体上改造后对抗震有利。
결합일좌대과도련속강구교실례，분석료재지진작용하해충교량적지진반응，통과개조교량형식，감소결구지진력。분석표명，강구교적기본주기교단，지진력교대；개조성채용감격진지좌적련속량교후，돈주적지진력명현하강，장기적축력야하강명현，단시대우장기적만구감소불대，단시정체상개조후대항진유리。
in this paper , combining with the department of a large span continuous rigid frame bridge as an example , analyzed this kind of the seismic response of the bridge under seismic action , through the bridge form, reduce the earthquake force of the structure .Through the analysis found that bridge the basic cycle is shor-ter, seismic force is bigger; Modified into isolation bearing is continuous girder bridge , significantly lower pier earthquake force , axial force of pile foundation also decreased significantly , but for the pile bending moment of the decrease is not big , but good for seismic after overall transformation .