目的为改善铅芯橡胶支座隔震结构的减震效果和适用范围，并确定结构的优化参数和控制装置优化布局。
In order to improve the effect of shock absorption and applied scope of base - isolated structure with lead rubber bearing and study its optimum parameter.
充分利用铅芯橡胶支座隔震结构的局部非线性性质，使非线性隔震结构的时程分析计算效率接近线性动力分析。
Using the local nonlinear property of the isolated structure, the computational efficiency of nonlinear time history analysis of the isolated structure is close to that of linear dynamic analysis.
研究表明设置铅芯橡胶支座对渡槽的横向地震起到了明显的控制作用，计算结果对渡槽减隔震设计有一定的参考价值。
The study shows that LRB is effective in controlling the lateral seismic responses of the aqueduct, which can be taken as a useful reference for the seismic design of the aqueducts concerned.
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