土-结构-调谐液体阻尼器相互作用体系的地震反应  

Seismic Responses of Soil- Structure-Tuned Liquid Damper Interaction System

作　　者：楼梦麟[1] 辛宇翔[1] 

机构地区：[1]同济大学土木工程防灾国家重点实验室,上海200092

出　　处：《同济大学学报（自然科学版）》2005年第3期285-290,共6页Journal of Tongji University:Natural Science

基　　金：国家自然科学基金资助项目 (5 0 2 780 70 )

摘　　要：在时域内建立了土 -结构 -调谐液体阻尼器 (TLD)相互作用体系地震反应的运动方程 ,以 12层和 2 4层两种钢结构为例 ,计算了深覆盖土层上钢结构在无控和受控条件下的地震反应 ,通过 5种土层波速和 3条不同输入地震波的多种工况的数值分析和比较 ,讨论了土 -结构相互作用对钢结构TLD减震控制效能的影响及其规律性 .计算结果表明 :一般情况下 ,土 -结构相互作用对结构地震反应的影响要强于TLD的减震影响 ,因此 ,科学而准确地分析土 -结构相互作用体系的地震反应 ,是确定设置TLD的必要性和合理性的首要前提条件 .The motion equation for seismic response of soil-structure-tuned liquid damper(TLD) interaction system is established in time domain.Taking 12-storey and 24-storey shear steel buildings as examples,the seismic responses of the buildings set on deep soil layer are calculated under the conditions with and without TLD controls.In analysis,several cases including five different shear wave velocities of soil medium and three input seismic waves are considered.The effects of soil-structure interaction on the TLD efficient of reducing seismic response of structures are discussed with numerical results.The main conclusion is that the effect of soil-structure interaction on the building's seismic response is stronger than the TLD's effect on reducing the seismic response.Therefore,computing accurately the seismic response of the structure including soil-structure interaction is very important before determining if the TLD control is necessary and designing reasonably the TLD device.

关 键 词：土-结构相互作用 调谐液体阻尼器控制 地震反应 钢结构 

分 类 号：TU435[建筑科学—岩土工程]