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采用精细有限元分析方法对隔震橡胶支座在压弯、纯弯和拉弯荷载作用的应力及变形特性进行了研究,并与具有相同尺寸混凝土柱的特性进行了对比研究.同时对一些影响因压弯荷载支座所产生的水平位移的因素进行了研究.研究表明,无论是在压弯或拉弯荷载作用下,支座内部都会产生明显的应力集中.除了支座中部孔径大小对支座水平位移幅度影响不大外,其他如支座直径、内部橡胶的剪切模量、内部橡胶总厚度及内部钢板厚度均对其有较大的影响.
The stress and deformation characteristics of the isolated rubber bearings subjected to bending, bending and bending loads were investigated by using the method of finite element analysis and contrasted with that of concrete columns of the same size.At the same time, some influences The research on the horizontal displacement caused by the bending load bearing research shows that the stress concentration inside the bearing will be obvious whether in the bending or bending load.In addition to the central aperture size of the bearing on the branch Seat horizontal displacement has little effect, other such as bearing diameter, the internal rubber shear modulus, the total thickness of the internal rubber and the thickness of the internal steel has a greater impact on it.