减震结构黏滞阻尼器优化布置方案的比较

Comparison of Optimized Layout Schemes of Viscous Damper with Shock Absorbing Structure

提出了一种基于简易序列搜寻法的阻尼器优化布置方法,通过估算结构的等效阻尼比,确定结构的附加阻尼参数,进而以层间位移的控制为目标,采用特定的规则调整阻尼器位置直到达到减震目标。最后,选择某12层钢筋混凝土框架结构,分别采用三种常见的阻尼器优化布置方案并提出黏滞阻尼器配置方案,对不同阻尼器配置结构在多遇和罕遇水准地震下的响应进行了分析对比。结果表明提出的改进方案减震效果最优,可供实际工程设计参考。

An optimized layout method of viscous damper is presented that is based on simple sequence search method.Determine structural additional damping parameter by estimated structural equivalent damping ratio so that use special rules to adjust damper position at the aim of the control of storey drift till successful shock absorbing.At last,with a reinforced concrete frame structure of 12 layers,based on three common damper optimized layout schemes and the equipped viscous damper,analyze and compare the response of different damper layout structure under often and seldom level earthquake.The result shows that under the presented improved scheme,the effect of shock absorbing is so optimized that it can be used as reference for real engineering design.