约束屈曲支撑在多层钢框架中的应用研究
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摘要
首先,提出约束屈曲支撑-框架结构(BRBF)的设计流程。其次,通过罕遇地震作用下的弹塑性时程分析,得到框架损伤量沿层分布规律。基于此规律和最大名义刚度比,可以确定结构各层应布置的约束屈曲支撑内核的截面面积。最后,对此约束屈曲支撑-框架结构进行非线性动力时程分析。分析结果表明:基于框架损伤量沿层分布规律的约束屈曲支撑分布模式,在强震作用下最大层间位移角分布比较均匀,减震效果良好。
Firstly ,it was proposed the design process of the buckling-restrained braces-frame structure(BRBF). Secondly ,the distribution law of the damage along the framework was obtained through the elastic-plastic analysis under rare earthquake.Based onthis distributionlawand the maxi mumnominal rigidity ratio ,it was determined the core area of the buckling-restrained braces of each storey.Lastly ,it was analyzed this buckling-restrained braces-frame structure by the method of non-linear dynamic ti me-history analysis.The analysis showed that ,based on the pattern which of the damage along the framework, distribution of the largest displacement angle of interlayer was more uniform,and good damping effect was gotton.
Firstly ,it was proposed the design process of the buckling-restrained braces-frame structure(BRBF). Secondly ,the distribution law of the damage along the framework was obtained through the elastic-plastic analysis under rare earthquake.Based onthis distributionlawand the maxi mumnominal rigidity ratio ,it was determined the core area of the buckling-restrained braces of each storey.Lastly ,it was analyzed this buckling-restrained braces-frame structure by the method of non-linear dynamic ti me-history analysis.The analysis showed that ,based on the pattern which of the damage along the framework, distribution of the largest displacement angle of interlayer was more uniform,and good damping effect was gotton.
引文
1蔡克铨,黄彦智.含挫屈束制消能支撑构架耐震性能之试验与分析研究//台湾大学工学院地震工程研究中心报告.CEERR91-03,2003
2[日]北村春辛.基于性能设计的建筑振动解析.裴星洙,廖红建,译.西安:西安交通大学出版社,2004
3苏成江.约束屈曲支撑性能分析及在钢框架中的应用研究:[硕士学位论文].兰州:兰州理工大学,2007
4哈敏强.普通和新型抑制屈曲支撑的力学性能及其应用研究:[硕士学位论文].上海:同济大学,2004
5刘建彬.防屈曲支撑及防屈曲支撑钢框架设计理论研究:[硕士学位论文].北京:清华大学,2006
6Ki mJinkoo,Choi Hyunhoon.Behavior and Design of Structures with Buckling-Restrained Braces.Engineering Structures,2004,26:693-706
7叶献国.建筑结构弹塑性地震反应中的能量表达及应用.合肥工业大学学报(自然科学版),1998,211(5):9-16
8朱彦鹏,张宪江.地震作用下约束屈曲支撑构件损伤量的数值分析.甘肃科学学报,2007
9张宪江.约束屈曲支撑在多层钢框架中的应用研究:[硕士学位论文].兰州:兰州理工大学,2007
10陈明.约束屈曲支撑体系的有限元分析:[硕士学位论文].兰州:兰州理工大学,2006
2[日]北村春辛.基于性能设计的建筑振动解析.裴星洙,廖红建,译.西安:西安交通大学出版社,2004
3苏成江.约束屈曲支撑性能分析及在钢框架中的应用研究:[硕士学位论文].兰州:兰州理工大学,2007
4哈敏强.普通和新型抑制屈曲支撑的力学性能及其应用研究:[硕士学位论文].上海:同济大学,2004
5刘建彬.防屈曲支撑及防屈曲支撑钢框架设计理论研究:[硕士学位论文].北京:清华大学,2006
6Ki mJinkoo,Choi Hyunhoon.Behavior and Design of Structures with Buckling-Restrained Braces.Engineering Structures,2004,26:693-706
7叶献国.建筑结构弹塑性地震反应中的能量表达及应用.合肥工业大学学报(自然科学版),1998,211(5):9-16
8朱彦鹏,张宪江.地震作用下约束屈曲支撑构件损伤量的数值分析.甘肃科学学报,2007
9张宪江.约束屈曲支撑在多层钢框架中的应用研究:[硕士学位论文].兰州:兰州理工大学,2007
10陈明.约束屈曲支撑体系的有限元分析:[硕士学位论文].兰州:兰州理工大学,2006
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