期刊论文

中文

建筑科学与工程学报

1673-2049

2015

32

2

65-70

10.3969/j.issn.1673-2049.2015.02.008

51178473:国家自然科学基金 13B149:湖南省教育厅科学研究青年项目

本校为第一机构

基于隔震理论提出减震结构优化设计方法,对某8度区11层框架结构进行了减震设计,通过附加粘滞阻尼器达到设防目标,根据振型分析调整隔震层层高,使安装阻尼器楼层位置降低至底部2层;将选取的7组加速度时程曲线分为4种工况,采用ETABS对减震结构进行了多遇地震作用下的时程分析,比较了各工况下阻尼器耗能总量和最大层间位移角.研究结果表明:将主体结构与减震装置看作有机整体对减震结构进行设计可取得较好的减震效果;将隔震层主体结构抗侧刚度作为减震装置设计参数,使隔震层基本周期与场地特征周期相等可取得最佳减震效果.

According to the theory of vibration isolation,optimal design method for damping structure was proposed.The authors conducted a seismic design for an 11-storey frame structure in the 8degree seismic area by the viscous dampers.Based on adjusting the storey height of isolation layer by vibration modal analysis,the viscous dampers were installed in the two bottom storeys.The selected 7groups of acceleration time-history curves were divided into four work conditions,the time-history of the energy dissipation structure under the frequent earthquake was analyzed with ETABS,and the total energy cons...