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点接触式防屈曲支撑稳定及延性性能研究

, PP. 20-26

Keywords: 屈曲约束支撑,点接触,稳定性能,延性性能

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Abstract:

防压曲支撑作为一种新型耗能减震构件,能用于抑制普通支撑的压曲现象,能更多地吸收和耗散地震输入结构的能量,提高框架的抗震性能。目前,常规屈曲约束支撑的芯材和无粘结材料一般采用特殊材料制成,加工制作成本较高,不利于工程推广使用。提出了一种点接触式防屈曲支撑(point-contactbuckling-restrainedbraces,PBRB),由核心钢管、约束套管及之间的垫环构成,各部件均采用普通钢材,且制作工艺简单。基于ABAQUS工作平台,通过改变PBRB的相关参数,对PBRB的稳定及延性性能进行了系统研究。结果表明,所提出的PBRB具有稳定的工作性能和良好的延性;在相同条件下,PBRB的稳定和延性性能与常规屈曲约束支撑相比差别不大;PBRB屈服后承载力基本保持在核心钢管屈服段的屈服荷载Fy附近,无强化上升段,降低了对约束单元的要求。

References

[1]  贾明明,张素梅,吕大刚.防屈曲支撑稳定及延性性能分析[J].建筑结构学报,2010,S(2):76-81.JIA Mingming,ZHANG Sumei,LüDagang.Stability behavior and ductility performance analysis of buckling-restrained braces[J].Journal ofBuilding Structures,2010,S(2):76-81.
[2]  申波,邓长根.双钢管构件由点接触到线接触的连续过渡[J].工程力学,2007,24(2):154-160.SHEN Bo,DENG Chang-gen.Continuous transition from point contact to line contact between the axially compressed inner core and the flexiblesleeve in a Sleeved Column[J].Engineering Mechanics,2007,24(2):154-160.
[3]  陈绍蕃.钢结构设计原理[M].第三版.北京:科学出版社,2005.CHEN Shaofan.Principles of Steel Structure Design(3nd Edition)[M].Beijing:Science Press,2005.
[4]  韩林海.钢管混凝土结构:理论与实践[M].北京:科学出版社,2004.HAN Linhai.Concrete-Filled Steel Tube Structure:Theory and Practice[M].Beijing:Science Press,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[D].北京:清华大学,2005.LIU Jianbin.Research on the Design Theory of Buckling-Restrained Braces and Buckling-Restrained Braced Frames[D].Beijing:Tsinghua U-niversity,2005.
[6]  汪家铭,中岛正爱,陆烨(译).屈曲约束支撑体系的应用与研究进展(I)[J].建筑钢结构进展,2005,7(1):1-12.UANG Chia-ming,NAKASHIMA Masayoshi,LU Ye(Translate).The Practice and Research Development of Buckling-restrained braced frames(Ⅰ)[J].Progress in Steel Building Structures,2005,7(1):1-12.
[7]  汪家铭,中岛正爱,陆烨.屈曲约束支撑体系的应用与研究进展(II)[J].建筑钢结构进展,2005,7(2):1-11.UANG Chia-ming,NAKASHIMA Masayoshi,LU Ye(Translate).The Practice and Research Development of Buckling-restrained braced frames(Ⅱ)[J].Progress in Steel Building Structures,2005,7(2):1-11.
[8]  周云.防屈曲耗能支撑结构设计与应用[M].北京:中国建筑工业出版社,2007:12-15.ZHOU Yun.Design & Application of Structure with Buckling-restrained Brace[M].Beijing:China Architecture & Building Press,2007:12-15.
[9]  袁钰,吴京.屈曲约束支撑框架 Pushover 分析的加载模式研究[J].世界地震工程,2010,26(2):207-211.YUAN Yu,WU Jing.Research on the lateral load pattern of Pushover analysis for a buckling restrained braced frame[J].World Earthquake Engi-neering,2010,26(2):207-211.
[10]  Kalyanaraman,V.,Sridhara,B.N.,Mahalevan,K.Sleeved column system[A].Proceedings,SSRC Task Group Meetings and Task ForceSessions[C]:Lehigh University,Bethlehem,PA,1994.
[11]  Prasad,B.Experimental investigation of sleeved column[A].Proceedings,33rd Structural Dynamics and Materials Conference[C]:AmericanInstitute of Aeronautics and Astronautics,Dallas,1992.
[12]  罗开海,孔祥雄,程绍革.一种新型屈曲约束支撑的研制与试验研究[J].建筑结构,2010,40(10):1-6.Luo Kaihai,Kong Xiangxiong,Cheng Shaoge.Invention and experimental study on a new type of buckling-restrained brace.Building Structure,2010,40(10):1-6.

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