板式橡胶支座设计承载力与恒载支反力分析

支座是桥梁结构的重要部件，也往往是设计中未能充分重视的部件，尤其是桥梁的结构设计与支座的工业设计联系尚显薄弱，支座往往凭经验选择，缺乏清晰的依据．针对目前公路桥梁中应用最为广泛的板式橡胶支座，简要介绍了其品种等概况，并给出了一个支座恒载反力的计算实例，通过对收集到的陕西境内大量实桥的恒载支反力计算，在中华人民共和国交通行业标准中的公路桥梁板式像胶支座系列范围内，采用统计和回归的方法给出了板式橡胶支座设计承载力与恒载支反力的关系表达式和趋势线，建立起桥梁受力分析与支座性能之间的关系，从而为桥梁设计中的支座选择提供一种参考的依据．

Analysis of design carrying capacity and support reaction to dead load of laminated RB

Though bearing is one of the important components of the bridge,it is always neglected,especially so is the connection between structure design of bridge and industrial design of bearing.It is usually selected through experience.Laminated rubber bearing is extensivety used in the calculation example for suport reaction to dead load.Through calculation of many bridges in Shaanxi Province,in the area of laminated rubber bearing from communication trade standard,this paper gives relational expression and tendency line between design carrying capacity and support reaction to dead load of RB by statistic and recursive method,and establishes relationship between the force analysis and bearing property so as to provide a reference basis for the selection of bearing.