Design and experimental verification of a new multi-functional bridge seismic isolation bearing

作     者：Chen-xi XING Hao WANG Ai-qun LI Ji-rong WU 

作者机构：MOE Key Laboratory of Concrete and Prestressed Concrete StructuresSoutheast UniversityNanjing 210096China 

出 版 物：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 (浙江大学学报（英文版）A辑（应用物理与工程）)

年 卷 期：2012年第13卷第12期

页      面：904-914页

核心收录：

学科分类：081406[工学-桥梁与隧道工程] 08[工学] 0814[工学-土木工程] 082301[工学-道路与铁道工程] 0823[工学-交通运输工程] 

基　　金：Project supported by the National Natural Science Foundation of China(Nos.50725828,50908046,and 50978056) the Teaching&Scientific Research Fund for Excellent Young Teachers of Southeast University,the Basic Scientific&Research Fund of Southeast University(No Seucx201106) the Priority Academic Program Development of Jiangsu Higher Education Institutions,China 

主　　题：Seismic isolation bearing Sliding device Finite element analysis Model experiment Bridge 

摘      要：A new multi-functional bridge seismic isolation bearing(MFBSIB) is designed and its mechanical model is developed in this *** an upper sliding device and a lower energy dispassion isolation device effectively,the new MFBSIB can adjust the deformation caused by temperature,vehicle breaks,and concrete creep,etc.,in addition to dissipating *** switch of slide-isolation is achieved and the efficiency of both upper and lower parts is validated through experiment with a *** shear performance curve established in this paper is verified to be efficient in describing the mechanical characteristics of the bearing through *** is proved through both numerical calculation and experimental analysis that the new MFBSIB is endowed with enough vertical rigidity,good energy dissipation ability,stable overall performance,and good realization in expected *** performance is slightly influenced by shear stress,while affected by vertical pressure,loading frequency,slide limit,etc.,*** results could provide reference for study and application of the new MFBSIB.