【作者】 何敏； 陈成； 胡锐光； 尚静； 郑宗平；

【Author】 He Min;Chen Cheng;Hu Ruiguang;Shang Jing;Zheng Zongping;School of Civil and Hydraulic Engineering,Hefei University of Technology;School of Civil Engineering,SuZhou University of Sience and Technology;

【机构】 合肥工业大学土木与水利工程学院； 苏州科技大学土木工程学院；

【摘要】 桥梁结构作为生命线工程之一,必须提高其抗震性能以避免或降低地震造成的危害。以芜湖市荆山桥主桥三跨连续梁桥为分析对象,建立三维有限元模型,采用摩擦摆支座,设置非隔震、隔震和混合隔震3种不同方案进行抗震性能的对比分析。数值仿真结果表明,全桥设置减隔震支座和在主墩及过渡墩处设置减隔震支座,减震效果明显;在满足支座位移要求情况下,仅在固定墩处设置减隔震支座也能取得良好的减震效果。更多还原

【Abstract】 As one of the lifeline engineering,the bridge structure must improve its seismic performance in order to avoid or reduce the damage caused by the earthquake.Taking the Wuhu Jingshan bridge which is a three span continuous girder bridge as the analysis object,establishing threedimensional finite element model,setting non base isolation,base and hybrid seismic isolation for seismic performance comparison analysis by using friction pendulum bearings.Numerical simulation results show that setting isolation bearing in the whole bridge or in the main pier and transition piers can obviously achieve academic isolation effect;Under the condition of meeting the requirement of displacement,only setting isolation bearing in the fixed pier can also achieve good vibration control.更多还原