板式橡胶支座深化设计与试验研究  

Engineering design and experimental study of laminated rubber bearings

作　　者：范重[1] 沈银澜[1,2] 毕磊[1] 任志彬[1] 

机构地区：[1]中国建筑设计研究院,北京100044 [2]北京科技大学土木与环境工程学院,北京100083

出　　处：《空间结构》2011年第3期47-54,共8页Spatial Structures

基　　金：<钢结构设计规范>国家标准科研专项基金项目(GB500172010-13)

摘　　要：在建筑结构中,橡胶垫支座往往处于复杂受力状态,为了防止风吸力与水平力作用下出现过大变形,可以在支座中设置限位螺栓.本文对带螺栓孔橡胶垫抗压弹性模量进行了深入分析,提出了形状系数修正方法;对传统的板式橡胶支座进行了改进,在橡胶垫的上、下盖板之间设置了限位条,避免橡胶垫粘结失效的影响;对比分析了不同设计标准中的橡胶垫抗压弹性模量的计算方法,提出了改进建议.最后,对板式橡胶支座的抗压弹性模量、抗剪弹性模量与支座转角进行了试验研究.In building structures,laminated rubber bearings are generally in complex stress state.In order to prevent excessive deformation of bearings due to wind suction and horizontal forces,the limited position-bolts set in rubber bearings are recommended.In this paper,the compressive elastic modulus of laminated rubber with bolt-holes are analyzed in detail,and a modified method of old shape-factor-calculation is proposed.Meanwhile,traditional rubber bearings are improved,and stop-strips at the edges of the upper and lower covers are used to prevent adhesive failure between the laminated rubber and lower cover plate.Besides,the improved advice is put forward after comparing various design criteria about the calculation of the compressive elastic modulus of laminated rubber.At last,the compressive elastic modulus,shear modulus and rotation angle of rubber bearing were tested and researched.

关 键 词：橡胶垫 支座 限位螺栓 形状系数 抗压弹性模量 

分 类 号：TU352.1[建筑科学—结构工程]