带加强层高层建筑地震作用分析与减震研究
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摘要
带加强层的高层建筑在地震作用下侧移和内力有特有的规律。针对带加强层高层建筑分析其动力特性和地震作用下的侧移规律,并进行减震效果研究和优化设计,提出设计建议。以某高烈度区一座带加强层高层建筑为例的分析结果表明,带加强层的高层建筑在地震荷载作用下侧移有突变,楼板缺失导致整个结构变形规律发生改变,附加粘滞流体阻尼器后层间位移角和底部剪力都有所减小,减震方案优化后减震效果良好。
High-rise buildings with strengthened storey have their own features of lateral displacement and mechanical behavior under earthquake.Here,dynamic characteristics and lateral displacement laws of a high-rise building with strengthened storey were analyzed,effects of seismic energy dissipation were studied,and then algorithms of its optimization and design were presented.Regarding an actual high-rise building with strengthened storey within a high intensive seismic region as an example,numerical simulation results revealed that its lateral displacement curve has abrupt changes,and absence of slabs causes the whole structural deformation laws to change;at the same time,its storey displacement angles and bottom storey shears decrease after adding viscous liquid dampers;effect of seismic energy dissipation is good after optimization.
High-rise buildings with strengthened storey have their own features of lateral displacement and mechanical behavior under earthquake.Here,dynamic characteristics and lateral displacement laws of a high-rise building with strengthened storey were analyzed,effects of seismic energy dissipation were studied,and then algorithms of its optimization and design were presented.Regarding an actual high-rise building with strengthened storey within a high intensive seismic region as an example,numerical simulation results revealed that its lateral displacement curve has abrupt changes,and absence of slabs causes the whole structural deformation laws to change;at the same time,its storey displacement angles and bottom storey shears decrease after adding viscous liquid dampers;effect of seismic energy dissipation is good after optimization.
引文
[1]徐培福.复杂高层建筑结构设计[M].北京:中国建筑工业出版社,2005.
[2]方鄂华,钱稼茹,叶列平.高层建筑结构设计[M].北京:中国建筑工业出版社,2003.
[3]李爱群,高振世.工程结构抗震设计[M].北京:中国建筑工业出版社,2005.
[4]沈朝勇,黄襄云,周福霖,等.带SRC桁架转换层及钢加强层高层建筑抗震性能研究[J].地震工程与工程振动,2004,24(6):83-88.
[5]朱杰江,宋健,王颖.带加强层框架—芯筒结构的优化研究[J].南京建筑工程学院学报,2001,58(3):26-31.
[6]葛家骐,张涛.带有加强层的超高层主体结构设计研究[J].建筑科学,2003,19(1):4-7.
[7]李爱群,高振世.工程结构抗震与防灾[M].南京:东南大学出版社,2003.
[8]叶正强.粘滞流体阻尼器消能减震技术的理论、试验与应用研究[D].南京:东南大学,2003.
[9]钱辉,李宏男,宋钢兵.形状记忆合金阻尼器消能减震体系的控制研究[J].振动与冲击,2008,27(8):42-47.
[10]曲激婷,李宏男.粘弹性阻尼器在结构减震控制中的位置优化研究[J].振动与冲击,2008,27(6):87-91.
[11]Zemp R,de la Llera J C,Roschke P.Tall building vibration control using a TM-MR damper assembly:experimental results and implementation[J].Earthquake Engineering and Structural Dynamics,2011,40(3):257-271.
[12]Pnevmatikos N G,Gantes C J.Design and control algorithm for structures equipped with active variable stiffness devices[J].Structural Control and Health Monitoring,2010,17(6):591-613.
[13]刘涛,李爱群,张志强.粘弹性阻尼器用于框支剪力墙结构减震设计[J].防灾减灾工程学报,2007,27(S):277-280.
[14]杨国华,李爱群,程文.某化工厂结构采用粘滞流体阻尼器的减振设计研究[J].工业建筑,2003,33(6):7-10.
[2]方鄂华,钱稼茹,叶列平.高层建筑结构设计[M].北京:中国建筑工业出版社,2003.
[3]李爱群,高振世.工程结构抗震设计[M].北京:中国建筑工业出版社,2005.
[4]沈朝勇,黄襄云,周福霖,等.带SRC桁架转换层及钢加强层高层建筑抗震性能研究[J].地震工程与工程振动,2004,24(6):83-88.
[5]朱杰江,宋健,王颖.带加强层框架—芯筒结构的优化研究[J].南京建筑工程学院学报,2001,58(3):26-31.
[6]葛家骐,张涛.带有加强层的超高层主体结构设计研究[J].建筑科学,2003,19(1):4-7.
[7]李爱群,高振世.工程结构抗震与防灾[M].南京:东南大学出版社,2003.
[8]叶正强.粘滞流体阻尼器消能减震技术的理论、试验与应用研究[D].南京:东南大学,2003.
[9]钱辉,李宏男,宋钢兵.形状记忆合金阻尼器消能减震体系的控制研究[J].振动与冲击,2008,27(8):42-47.
[10]曲激婷,李宏男.粘弹性阻尼器在结构减震控制中的位置优化研究[J].振动与冲击,2008,27(6):87-91.
[11]Zemp R,de la Llera J C,Roschke P.Tall building vibration control using a TM-MR damper assembly:experimental results and implementation[J].Earthquake Engineering and Structural Dynamics,2011,40(3):257-271.
[12]Pnevmatikos N G,Gantes C J.Design and control algorithm for structures equipped with active variable stiffness devices[J].Structural Control and Health Monitoring,2010,17(6):591-613.
[13]刘涛,李爱群,张志强.粘弹性阻尼器用于框支剪力墙结构减震设计[J].防灾减灾工程学报,2007,27(S):277-280.
[14]杨国华,李爱群,程文.某化工厂结构采用粘滞流体阻尼器的减振设计研究[J].工业建筑,2003,33(6):7-10.
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