屈曲约束支撑核心单元的多波屈曲过程研究

吴京; 梁仁杰; 王春林; 石建华

doi:10.6052/j.issn.1000-4750.2010.09.0668

屈曲约束支撑核心单元的多波屈曲过程研究

1.
东南大学混凝土及预应力混凝土结构教育部重点实验室,南京 210096;
2.
东南大学城市工程科学技术研究院,南京 210096

基金项目: 国家973计划项目(2007CB714200);国家自然科学基金项目(50878055);江苏省自然科学基金项目(BK2008313)

详细信息

作者简介:
梁仁杰(1985―),男,江苏宜兴人,博士生,从事工程抗震研究(E-mail: liangrenjie@gmail.com);
王春林(1980―),男,江苏南通人,讲师,博士,从事工程抗震研究(E-mail: chunlin@seu.edu.cn);
石建华(1986―),男(蒙古族),内蒙古呼和浩特人,硕士,从事工程抗震研究(E-mail: jianhuashi051041@163.com).

中图分类号: TU973⁺.31
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出版历程
- 收稿日期: 2010-09-15
- 修回日期: 2010-12-28
- 刊出日期: 2012-08-24

RESARCH ON THE MULTI-WAVE BUCKLING PROCESS OF THE CORE COMPONENT OF THE BUCKLING-RESTRAINED BRACE

1.
The Key Laboratory on Concrete and Prestressed Concrete Structures of Ministry of Education of China, Southeast University, Nanjing 210096, China;
2.
International Institute for Urban Systems Engineering, Southeast University, Nanjing 210096, China

摘要

摘要: 屈曲约束支撑核心单元的受力形态是影响其低周疲劳特性和滞回特性的重要因素。基于屈曲约束支撑核心单元的受力特点,建立了基本假定,并依据承受轴向荷载和侧向荷载杆件的平衡方程,推导了核心单元与约束单元点接触和线接触状态下的挠曲线方程,揭示了其在持续增大的轴向力作用下点接触、线接触和新波生成交替出现的多波屈曲过程。算例分析表明:该文提出的计算公式与数值分析计算结果相一致,可用以描述核心单元在约束单元内的受力特性。
- 屈曲约束支撑 /
- 限制失稳 /
- 接触 /
- 多波屈曲 /
- 挠曲线
Abstract: The structural behavior of the core component is one of the key factors that influence the low-cycle fatigue and hysteretic character of buckling-restrained brace (BRB). Based on the structural features of the BRB, some basic assumptions are introduced to establish the equilibrium equation of a member subjected to axial and lateral force. Equations are then derived to describe the deflection curve of the core component under the situation of point contact and line contact. The multi-wave buckling process of the core under increasing axial load in turn of point contact, line contact and generation of new wave is revealed. A calculation example illustrates that the derived equations agree well with the numerical results, and the equations can be used to describe the structural behavior of the BRB core.
- buckling-restrained brace /
- confined buckling /
- contact /
- multi-wave buckling /
- deflection curve

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参考文献(12)

[1]	Xie Q. State of the art of buckling-restrained braces in Asia [J]. Journal of Constructional Steel Research, 2005, 61(6): 727―748.
[2]	马宁, 吴斌, 赵俊贤, 等. 十字形内芯全钢防屈曲支撑构件及子系统足尺试验[J]. 土木工程学报, 2010, 43(4): 1―7. Ma Ning, Wu Bin, Zhao Junxian, et al. Full scale uniaxial and subassemblage tests on the seismic behavior of all-steel buckling-resistant brace [J]. China Civil Engineering Journal, 2010, 43(4): 1―7. (in Chinese)
[3]	郭彦林, 江磊鑫. 双矩管带肋约束型装配式防屈曲支撑的设计方法[J]. 建筑科学与工程学报, 2010, 27(2): 67―74. Guo Yanlin, Jiang Leixin. Design method of buckling- restrained braces assembled with dual ribbed rectangular hollow [J]. Journal of Architecture and Civil Engineering, 2010, 27(2): 67―74. (in Chinese)
[4]	赵俊贤, 吴斌. 防屈曲支撑的工作机理及稳定性设计方法[J]. 地震工程与工程振动, 2009, 29(3): 131―139. Zhao Junxian, Wu Bin. Working mechanism and stability design methods of buckling-restrained braces [J]. Journal of Earthquake Engineering and Engineering Vibration, 2009, 29(3): 131―139. (in Chinese)
[5]	郭英涛, 任文敏. 关于限制失稳的研究进展[J]. 力学进展, 2004, 34(1): 41―52. Guo Yingtao, Ren Wenmin. Some advances in confined buckling [J]. Advances in Mechanics, 2004, 34(1): 41―52. (in Chinese)
[6]	Sridhara B N. Sleeved compression member [P]. USA: 5175972, 1993.
[7]	Prasad B K. Experimental investigation of sleeved column [C]. Proceedings of the 33rd AIAA/ASCE Structures, Structural Dynamics and materials Conference, Dallas, USA: AIAA/ASCE, 1992: 991―999.
[8]	Domokos G, Holmes P, Royce B. Constrained Euler buckling [J]. Journal of Nonlinear Science, 1997, 7(3): 281―314.
[9]	哈敏强. 无粘结钢支撑性能研究及其应用[D]. 上海: 同济大学, 2004. Ha Minqiang. Study on the mechanical performances and applications of conventional and innovative buckling restrained braces [D]. Shanghai: Tongji University, 2004. (in Chinese)
[10]	Chai H. The post-bucking response of a bi-laterally constrained column [J]. Journal of the Mechanics and Physics of Solids, 1998, 46(7): 1151―1181.
[11]	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 Changgen. Continuous transition from point contact to line contact between the axially compressed inner core and the flexible sleeve in a sleeved column [J]. Engineering Mechanics, 2007, 24(2): 154―160. (in Chinese)
[12]	申波, 邓长根. 柔性套管约束下轴心受压杆件的屈曲分析[J]. 力学与实践, 2006, 28(5): 43―46. Shen Bo, Deng Changgen. Buckling analysis of an axially compressed strut constrained by a flexible sleeve [J]. Mechanics in Engineering, 2006, 28(5): 43―46. (in Chinese)

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文章访问数: 745
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屈曲约束支撑核心单元的多波屈曲过程研究

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出版历程

RESARCH ON THE MULTI-WAVE BUCKLING PROCESS OF THE CORE COMPONENT OF THE BUCKLING-RESTRAINED BRACE

期刊类型引用(4)

其他类型引用(0)

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出版历程

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