[提要]  提出了一种隔震建筑用叠层橡胶支座的大变形模型。该模型同时考虑了叠层橡胶支座的大变形特性、变形过程中的P-8效应和支座端面转动约束对变形的影响，具有较好的计算精度和效率。还进一步探讨了叠层橡胶支座的合理竖向压应力取值问题。结果表明，在现有基础上适当提高取值是完全可行的。
[关键词]  隔震建筑 叠层橡胶支座 大变形模型 竖向压应力

A mechanical model accounting for the large-deformational property, the P-8 effect and the revolute restraint at the top of the rubber bearings is presented which is used for base-isolated buildings with good accuracy and high efficiency. Also, the rational compressed stress of laminated rubber bearings used in base-isolated buildings is studied. The results show that it is reasonable to raise the compressed stress which is adopted now.
Keywords: base-isolated building; laminated rubber bearings;mechanical model; compressed stress