采用流固耦合渡槽薄壁结构梁段单元有限元模型，分别利用双线性模型和Wen模型来模拟铅芯橡胶支座的非线性滞回恢复力特性，对某大型渡槽结构进行了空间隔震响应研究。计算结果表明，无论是渡槽设计水位还是渡槽空槽情况，采用铅芯橡胶非线性隔震支座对渡槽输水建筑物均起到较好的减、隔震效果。建议在大型渡槽抗震设计时，可采用铅芯橡胶支座取代普通橡胶支座，以提高渡槽的整体抗震性能。

On the basis of the thinwall beam finite element model of an aqueduct with fluidstructure coupling, the seismic response of some large aqueduct is studied by use of the bilinear model and the Wen model to simulate nonlinear hysteretic curve of the lead rubber bearing. The calculation results show that the lead rubber bearing has good vibration isolation effect in the cases of the aqueduct both with design water level and without water. In order to improve the antiseismic performance of the aqueduct, the common rubber bearing can be replaced by the lead rubber bearing.