隔震在短肢剪力墙高层住宅中的应用研究
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摘要
基于目前规范对短肢剪力墙结构性能指标限制严格的问题,提出将隔震技术引入短肢剪力墙结构,通过合理设置隔震层降低结构地震反应,扩大短肢剪力墙的应用范围。对一具体工程进行大震下的弹塑性时程分析,结果表明,短肢剪力墙隔震结构在8度罕遇地震下的反应小于非隔震结构7度罕遇地震下的反应,在高烈度区具有足够的安全储备,为短肢剪力墙在高烈度地区应用提供一种可行的方法;同时对比了SAP2000非线性分析中直接积分法和FNA法在隔震分析中的有效性,得出FNA法在保证精度的前提下能有效提高非线性分析的效率。
Considering current rigorous specification limits on structural performance indicators of short-pier shear wall structure,seismic isolation technology can be introduced into the short-pier shear wall structure to reduce the structural seismic response and expand applications of short-pier shear wall by setting reasonable isolation layer. The elastic-plastic time-history analysis of a specific short-pier shear wall residential was carried out. Results show that seismic response of the short-pier shear wall isolated structure under 8 degree rare earthquake is smaller than that of non-isolated structure under 7degree rare earthquake. Short-pier shear wall structure with isolation has sufficient safety margin and is a feasible method applied in high intensity region. While the effectiveness of the direct integral method and FNA method in nonlinear isolation analysis of SAP2000 program were compared to come to the conclusion that FNA method can effectively improve the efficiency of nonlinear analysis when the accuracy is ensured.
Considering current rigorous specification limits on structural performance indicators of short-pier shear wall structure,seismic isolation technology can be introduced into the short-pier shear wall structure to reduce the structural seismic response and expand applications of short-pier shear wall by setting reasonable isolation layer. The elastic-plastic time-history analysis of a specific short-pier shear wall residential was carried out. Results show that seismic response of the short-pier shear wall isolated structure under 8 degree rare earthquake is smaller than that of non-isolated structure under 7degree rare earthquake. Short-pier shear wall structure with isolation has sufficient safety margin and is a feasible method applied in high intensity region. While the effectiveness of the direct integral method and FNA method in nonlinear isolation analysis of SAP2000 program were compared to come to the conclusion that FNA method can effectively improve the efficiency of nonlinear analysis when the accuracy is ensured.
引文
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[13]程华群,刘伟庆,王曙光.高层隔震建筑设计中隔震支座受拉问题分析[J].地震工程与工程振动,2007,27(4):161-166.
[14]日本建筑学会.隔震结构设计[M].北京:地震出版社,2006.
[2]李晓蕾.高层建筑短肢剪力墙结构的力学模型与试验研究[D].西安:西安建筑科技大学,2011.
[3]黄东升,程文,彭飞.对称双肢短肢剪力墙的低周反复荷载试验研究[J].建筑结构学报,2005,26(3):51-56.
[4]彭飞,程文瀼,陆和燕.短肢剪力墙的定义[J].东南大学学报:自然科学版,2007,37(2):186-189.
[5]GB 50011—2010建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.
[6]JGJ 3—2010高层建筑混凝土结构技术规程[S].北京:中国建筑工业出版社,2011.
[7]卜龙瑰,苗启松,韩龙勇,等.隔震结构设计方法探讨[J].建筑结构,2013,43(17):109-112.
[8]CECS 126:2001叠层橡胶支座隔震技术规程[S].北京:中国建筑工业出版社,2001.
[9]商黔建.高烈度区某多层隔震结构设计及应用[J].建筑结构,2013,43(14):53-56.
[10]耿方方,李爱群,张志强.宿迁某高层剪力墙住宅基础隔震设计方法研究[J].江苏建筑,2011(6):16-19.
[11]北京金土木软件技术有限公司.SAP2000中文版使用指南[M].2版.北京:人民交通出版社,2012.
[12]彭俊生,罗永坤,彭地.结构动力学、抗震计算与SAP2000应用[M].成都:西南交通大学出版社,2007.
[13]程华群,刘伟庆,王曙光.高层隔震建筑设计中隔震支座受拉问题分析[J].地震工程与工程振动,2007,27(4):161-166.
[14]日本建筑学会.隔震结构设计[M].北京:地震出版社,2006.
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