消能部件平面外稳定性问题探讨
|
摘要
消能减震结构研究与设计中,往往忽略消能部件平面外的力学特性,可能为消能减震结构埋下安全隐患。分析了双向地震下消能部件的平面外变形模式,介绍了国内外研究情况和相关规程、设计手册对消能部件平面外力学特性的要求,给出以下建议:研究各类型消能部件在双向地震作用下的力学特性及破坏模式,找到如消能器平面外刚度等关键力学指标对消能部件平面外稳定性的影响规律;建立各类型消能部件平面外稳定性设计方法,以指导减震结构分析和设计;研究能释放消能器平面外受力或变形的柔性连接构造措施。
In the research and design of energy dissipation structures, the out-of-plane mechanical characteristics of energy dissipation devices are often neglected, which may be a potential safety hazard of energy dissipation structures. Deformation modes of energy dissipation devices under bidirectional seismic were analyzed and the requirements for mechanical properties of energy dissipation devices at home and abroad, related regulations and design manuals were introduced. The advices are as follows: mechanical properties and failure modes of all kinds of energy dissipation devices under bidirectional seismic should be studied. The influence law of some key mechanical indexes on the out-of-plane stability of energy dissipation devices needs to be found, such as out-of-plane stiffness of energy dissipation devices. Design method for out-of-plane stability of all types of energy dissipation devices should be established to guide the analysis and design of energy dissipation structures. The flexible connection construction measures that can release the external force or deformation of the energy dissipation devices should be studied.
In the research and design of energy dissipation structures, the out-of-plane mechanical characteristics of energy dissipation devices are often neglected, which may be a potential safety hazard of energy dissipation structures. Deformation modes of energy dissipation devices under bidirectional seismic were analyzed and the requirements for mechanical properties of energy dissipation devices at home and abroad, related regulations and design manuals were introduced. The advices are as follows: mechanical properties and failure modes of all kinds of energy dissipation devices under bidirectional seismic should be studied. The influence law of some key mechanical indexes on the out-of-plane stability of energy dissipation devices needs to be found, such as out-of-plane stiffness of energy dissipation devices. Design method for out-of-plane stability of all types of energy dissipation devices should be established to guide the analysis and design of energy dissipation structures. The flexible connection construction measures that can release the external force or deformation of the energy dissipation devices should be studied.
引文
[1] SOONG T T. 结构工程中的被动消能系统 [M]. 北京:科学出版社,2009.
[2] 建筑消能减震技术规程:JGJ 297—2013[S]. 北京:中国建筑工业出版社,2013.
[3] 周云. 防屈曲支撑结构设计与应用[M]. 北京:中国建筑工业出版社,2007.
[4] Japan Society of Seismic Isolation. 被动减震结构设计·施工手册[M]. 北京:中国建筑工业出版社,2003.
[5] MAHIN S, URIZ P, AIKEN I, et al. Seismic performance of buckling restrained braced frame systems [C]//Proceedings of 13th World Conference on Earthquake Engineering. Vancouver, 2004.
[6] TSAI K C, HSIAO P C, WANG K J, et al. Pseudo-dynamic tests of a full-scale CFT/BRB Frame—Part I: specimen design, experiment and analysis [J]. Earthquake Engineering and Structural Dynamics, 2008, 37(7):1081-1098.
[7] KOETAKA Y, KINOSHITA T, INOUE K, et al. Criteria of buckling-restrained braces to prevent out-of-plane buckling [C]. Proceedings of 14th World Conference on Earthquake Engineering. Beijing, 2008.
[8] TAKEUCHI T, OZAKI H, MATSUI R, et al. Out-of-plane stability of buckling-restrained braces including moment transfer capacity [J]. Earthquake Engineering and Structural Dynamics, 2014, 43(6):851-869.
[9] TAKEUCHI T, MATSUI R, MIHARA S. Out-of-plane stability assessment of buckling-restrained braces with chevron configurations [J]. Earthquake Engineering and Structural Dynamics, 2015, 45(12):1895-1917.
[10] 龚晨. 开孔钢板装配式BRB设计方法与双向地震作用下结构中BRB平面外局部稳定性研究 [D]. 广州:广州大学,2018.
[11] 钟根全. 耦合框架平面外变形屈曲约束支撑框架的抗震性能研究 [D]. 广州:广州大学,2018.
[12] 周汉杰,陆秀丽,张涛,等. 天津大港小学消能部件面外承载力探讨应用 [J]. 工程抗震与加固改造,2017,39(4): 47-54.
[2] 建筑消能减震技术规程:JGJ 297—2013[S]. 北京:中国建筑工业出版社,2013.
[3] 周云. 防屈曲支撑结构设计与应用[M]. 北京:中国建筑工业出版社,2007.
[4] Japan Society of Seismic Isolation. 被动减震结构设计·施工手册[M]. 北京:中国建筑工业出版社,2003.
[5] MAHIN S, URIZ P, AIKEN I, et al. Seismic performance of buckling restrained braced frame systems [C]//Proceedings of 13th World Conference on Earthquake Engineering. Vancouver, 2004.
[6] TSAI K C, HSIAO P C, WANG K J, et al. Pseudo-dynamic tests of a full-scale CFT/BRB Frame—Part I: specimen design, experiment and analysis [J]. Earthquake Engineering and Structural Dynamics, 2008, 37(7):1081-1098.
[7] KOETAKA Y, KINOSHITA T, INOUE K, et al. Criteria of buckling-restrained braces to prevent out-of-plane buckling [C]. Proceedings of 14th World Conference on Earthquake Engineering. Beijing, 2008.
[8] TAKEUCHI T, OZAKI H, MATSUI R, et al. Out-of-plane stability of buckling-restrained braces including moment transfer capacity [J]. Earthquake Engineering and Structural Dynamics, 2014, 43(6):851-869.
[9] TAKEUCHI T, MATSUI R, MIHARA S. Out-of-plane stability assessment of buckling-restrained braces with chevron configurations [J]. Earthquake Engineering and Structural Dynamics, 2015, 45(12):1895-1917.
[10] 龚晨. 开孔钢板装配式BRB设计方法与双向地震作用下结构中BRB平面外局部稳定性研究 [D]. 广州:广州大学,2018.
[11] 钟根全. 耦合框架平面外变形屈曲约束支撑框架的抗震性能研究 [D]. 广州:广州大学,2018.
[12] 周汉杰,陆秀丽,张涛,等. 天津大港小学消能部件面外承载力探讨应用 [J]. 工程抗震与加固改造,2017,39(4): 47-54.