大型渡槽盆式橡胶隔震支座轴向刚度研究  

Study on axial stiffness of pot rubber isolation bearing for large-sized aqueduct

作　　者：陈波[1] 

机构地区：[1]兰州交通大学甘肃省道路桥梁与地下工程重点实验室,甘肃兰州730070

出　　处：《水利水电技术》2016年第5期21-23,28,共4页Water Resources and Hydropower Engineering

基　　金：教育部长江学者和创新团队发展计划资助(IRT1139)

摘　　要：盆式橡胶支座用于大型、特大型渡槽结构时,支座设计时如何合理地确定其各种结构参数显得十分重要。考虑到盆式橡胶支座各组成构件的直径和厚度的变化,以及在轴向压力作用下盆式橡胶支座的压缩变形特征,利用变分原理和卡氏第二定律导出了盆式橡胶支座的轴向刚度计算公式。通过比较,计算值与实测值的吻合程度较好。When pot rubber bearing is adopted for the structure of large-sized or supper-large aqueduct,how to determine all the structural parameters of it is apparently quite important during the design of it. Under the consideration of variations of the diameters and thicknesses of all the components of the pot rubber bearing as well as its compression deformation characteristics under the axial pressure,the calculation formula for the axial stiffness of the bearing is derived with the variational principle and Castigliano＇s second theorem. Through the relevant comparison,the calculated value is better coincident with the measured one.

关 键 词：大型渡槽 橡胶支座 刚度 钢衬板 

分 类 号：TV672.3[水利工程—水利水电工程]