不同边界条件下叠层橡胶支座的水平刚度分析

发布时间：2018-06-29 03:23

  本文选题：叠层橡胶支座 + 边界条件　； 参考：《建筑结构学报》2014年04期

【摘要】：为了研究边界条件对叠层橡胶支座水平刚度的影响,定义了四类边界条件,采用弯剪模型,用直接积分法推导了在压剪作用下叠层橡胶支座的水平刚度方程。通过算例分析支座顶面与底面的转动约束参数k0和kh以及竖向荷载p对叠层橡胶支座水平刚度的影响,对比了不同边界条件下水平刚度的变化。结果表明:边界条件对于叠层橡胶支座的水平刚度影响明显,在相同参数k0和kh以及竖向荷载p作用下,边界条件一(k0≈∞和kh≈∞)时水平刚度KR,I最大,边界条件四(k0和kh较小)时水平刚度KR,IV最小,当边界条件相同时随着参数k0和kh的增大,边界条件二、三、四下叠层橡胶支座的水平刚度增大且向边界条件一接近,随着竖向荷载p的增大各类水平刚度降低。
[Abstract]:In order to study the influence of boundary conditions on the horizontal stiffness of laminated rubber bearings, four kinds of boundary conditions were defined, and the horizontal stiffness equations of laminated rubber bearings under the action of compression and shear were derived by using the bending shear model and the direct integration method. The effects of the rotational constraint parameters k _ 0 and k _ k and vertical load p on the horizontal stiffness of the laminated rubber bearing are analyzed by an example, and the horizontal stiffness changes under different boundary conditions are compared. The results show that the effect of boundary conditions on the horizontal stiffness of laminated rubber supports is obvious. Under the same parameters (k _ 0 and k _ k and vertical load p), the horizontal stiffness KRN _ I is the largest under the boundary condition one (k _ 0 鈮，

本文编号：2080628