Research on Design Method and Seismic Performance of Diamond Braced Frame Structure
-
摘要: 菱形网格支撑框架结构是一种新型的抗侧力支撑结构,其构造简单,用于多高层钢结构住宅时可方便围护墙体的安装。为了验证菱形网格支撑的抗震性能,对单跨两层的菱形网格支撑结构进行了有限元拟静力分析,并与传统的单斜杆支撑、人字形支撑以及交叉支撑在相同用钢量下进行了对比。研究结果表明:菱形网格支撑不易发生屈曲破坏,结构延性好,在不增加用钢量的前提下,仍具有较大刚度和承载能力。菱形网格支撑框架结构对框架尤其是边柱产生了不利影响,因此根据结构力学基本假定,考虑菱形网格支撑对边柱的不利影响提出了菱形网格支撑框架结构的设计方法,供实际工程参考。Abstract: Diamond grid braced frames structure(DBF) is a new type of lateral force support structure, which can be used in multi-high-rise steel structure housing to facilitate the installation of enclosure wall.In order to verify the seismic performance of diamond grid brace, the finite element quasi-static analysis of single-span two-story diamond grid braced structure was carried out, and compared with the traditional single diagonal bar brace, herring-bone brace and cross brace under the same steel consumption.The results showed that the diamond grid braced was not prone to buckling failure, and the structure had good ductility and stiffness without increasing the amount of steel.The diamond grid braced structure had adverse effects on the frame, especially on the side columns. Therefore, according to the basic assumptions of structural mechanics, considering the adverse effects of the diamond grid braced structure on the side columns, a design method for diamond grid braced structure was proposed, which could be used as a reference for practical engineering.
-
Key words:
- braced frame /
- seismic performance /
- design method /
- lateral bearing capacity
-
[1] 赵西安.高层建筑结构实用设计方法(六):高层建筑结构分析的计算机方法[J].建筑科学,1988(6):68-74. [2] 郝际平,薛强,郭亮,等.装配式多、高层钢结构住宅建筑体系研究与进展[J].中国建筑金属结构,2020(3):27-34. [3] 王琼,王喆,王力,等.国内多高层钢结构住宅的发展现状[J].中国住宅设施,2015(4):18-23. [4] 中华人民共和国住房和城乡建设部.建筑抗震设计规范:GB 50011-2010[S].北京:中国建筑工业出版社,2012. [5] 周天华, 李文超, 管宇, 等. 基于应力三轴度的钢框架循环加载损伤分析[J]. 工程力学, 2014, 31(7):146-155. [6] 张薇. 延性中心支撑框架节点板连接的抗震性能研究[D]. 大连:大连理工大学, 2019. [7] 管克俭,王新武,彭少民.钢框架支撑体系的应用和分析方法[J].中国工程科学,2003(5):80-83. [8] LIAN M, SU M, GUO Y. Seismic performance of eccentrically braced frames with high strength steel combination[J]. Steel and Composite Structures, 2015, 18(6):1517-1539. [9] THORBURN L J, KULAK G L, MONTGOMERY C J. Analysis of steel plate shear walls[R]. Canada:Department of Civil Engineering,University of Alberta, Edmonton, 1983. [10] BAYAT M R. Performance-based plastic design of earthquake resistant steel structures:concentrically braced frames, tall moment frames, plate shear wall frames[M]. Arlington:The University of Texas at Arlington, 2010. [11] MEDHEKAR M S, KENNEDY D J L. Displacement-based seismic design of buildings-application[J]. Engineering Structures, 2000, 22(3):210-221. [12] 樊春雷,郝际平,田炜烽.薄钢板剪力墙结构试验研究及简化模型分析[J].工程力学,2016,33(6):34-45. [13] TSAI K C, LI C H, LIN C H, et al. Cyclic tests of four two-story narrow steel plate shear walls-part 1:analytical studies and specimen design[J]. Earthquake Engineering & Structural Dynamics, 2010, 39(7):775-799. [14] LI C H, TSAI K C, LIN C H, et al. Cyclic tests of four two-story narrow steel plate shear walls. part 2:experimental results and design implications[J]. Earthquake Engineering & Structural Dynamics, 2010, 39(7):801-826. [15] 樊春雷.钢框架-钢板剪力墙结构基于性能的抗震设计研究[D].西安:西安建筑科技大学,2014. [16] 熊二刚,张倩.中心支撑钢框架结构基于性能的塑性抗震设计[J].振动与冲击,2013,32(19):32-38. [17] 连鸣,苏明周,李慎.Y形高强钢组合偏心支撑框架结构基于性能的塑性设计方法研究[J].工程力学,2017,34(5):148-162.
点击查看大图
计量
- 文章访问数: 187
- HTML全文浏览量: 31
- PDF下载量: 2
- 被引次数: 0