钢-混凝土组合框架子结构动态倒塌性能试验研究

摘要
图/表
参考文献(15)
相关文章 (15)

全文: PDF (975 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要为了研究中柱失效后钢-混凝土组合框架结构的动态倒塌性能，对2个1/3缩尺的组合框架子结构试件进行了抽柱试验研究。研究结果表明：当在组合框架梁上分别悬挂30 kN和60 kN的配重时，2个试件在中柱处的最大动态位移至少为振动停止后静态位移的1.34倍；在中柱抽除后，剩余结构仍处于弹性受力阶段且阻尼比较小；采用栓钉抗剪连接件的组合框架梁具有较大的加速度响应和动态位移响应；组合梁中采用开孔板连接件的框架子结构具有较好的整体刚度，其受倒塌荷载动力冲击作用的影响相对较小；随着中柱竖向位移的增加，组合框架倒塌荷载动力增大系数（DIF）呈现两阶段的变化规律。基于试验研究，建立了组合框架倒塌荷载

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	杨涛1
	2
	3
	赵凯1
	彭修宁1
	2

关键词 ：钢-混凝土组合梁, 连续倒塌性能, 动力响应, 抗剪连接件, 动力增大系数

Abstract：To investigate the dynamic collapse performance of steel-concrete composite frame structures after a middle column was removed, two one-third reduced scaled composite frame substructures were tested by removing a column. Experimental results showed that when additional weight of 30 kN and 60 kN were hung on the composite frame beams respectively, the maximum dynamic displacement at the middle columns of the two specimens was at least 1.34 times of the static displacement after the vibration stopped. The residual structures were still working in the elastic stage after the removal of the middle column and the damp ratios were both minor. The composite frame beams using studs shear connectors presented larger acceleration response and dynamic displacement response. While the frame substructure with perforated plate shear connectors used in the composite beams had better integral rigidity and was less affected by the impact of the dynamic load comparing with the former. The collapse load dynamic increase factors (DIF) of the composite frames appeared two-stage changing rules with the increase of vertical displacement at the middle column. And then, the calculation model of collapse load DIF applying to composite frames was presented based on the experimental investigation. The research results of this paper could provide references for collapse analysis of steel-concrete composite frame structures.

Key words： steel-concrete composite beam；progressive collapse dynamic response shear connector dynamic increase factor.

收稿日期: 2019-01-07 出版日期: 2020-06-28

引用本文:

杨涛1,2,3，赵凯1，彭修宁1,2. 钢-混凝土组合框架子结构动态倒塌性能试验研究[J]. 振动与冲击, 2020, 39(13): 36-42.
YANG Tao1,2,3, ZHAO Kai1, PENG Xiuning1,2. Tests for dynamic collapse performance of steel-concrete composite frame substructures. JOURNAL OF VIBRATION AND SHOCK, 2020, 39(13): 36-42.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2020/V39/I13/36

[1] Tan S, Astaneh-Asl A. Cable-based retrofit of steel building floors to prevent progressive collapse [R]. Berkeley: University of California. 2003.
[2] Yu M, Zha X, Ye J. The influence of joints and composite floor slabs on effective tying of steel structures in preventing progressive collapse [J]. Journal of Constructional Steel Research, 2010, 66(3): 442-451.
[3] Fu F. Progressive collapse analysis of high-rise building with 3-D finite element modeling method [J]. Steel Construction, 2009, 65(6): 1269-1278.
[4] 陈俊岭，彭文兵，黄鑫. 二层钢框架—组合楼板体系抗倒塌试验研究[J]. 同济大学学报:自然科学版, 2012, 40(9): 1300-1305.
CHEN Jun-ling, PENG Wen-bing, HUANG Xin. Experimental Study on Progressive Collapse Resistance of Two-story Steel Moment - frame with Composite Slabs [J]. Journal of Tongji University (Natural Science), 2012, 40(9): 1300-1305.
[5] 高山，郭兰慧，吴兆旗，等. 关键柱失效后组合框架抗倒塌试验研究及理论分析[J]. 建筑结构学报, 2013, 34(4): 43-48.
GAO Shan, GUO Lan-hui, WU Zhao-qi, et al. Experimental and analytical studies on performance of composite frame under column loss [J]. Journal of Building Structures, 2013, 34(4): 43-48.
[6] Guo L H, Gao S, Fu F. Structural performance of semi-rigid composite frame under column loss [J]. Engineering Structures, 2015, 95: 112-126.
[7] Yang B, Tan K H. Behavior of composite beam-column joints in a middle-column-removal scenario: Experimental tests [J]. Journal of Structural Engineering, 2014, 140(2): 04013045.
[8] Yang B, Tan K H, Xiong G, et al. Experimental study about composite frames under an internal column-removal scenario [J]. Journal of Constructional Steel Research, 2016, 121: 341-351.
[9] 王来，马洋，邱婧. 基于楼板双向受拉模型的钢框架结构连续倒塌分析[J]. 工业建筑, 2014, 44(7): 159-163.
WANG Lai, MA Yang, QIU Jing. Progressive collapse analysis of steel frame structure with composite floor slab two-way tension model [J]. Industrial Construction, 2014, 44(7): 159-163.
[10] 杨涛，梁纬球，彭修宁. 钢－混凝土组合梁连续倒塌性能与倒塌机理分析[J]. 武汉理工大学学报, 2015, 37(1): 75-80.
YANG Tao, LIANG Wei-qiu, PENG Xiu-ning. Analysis on progressive collapse performance and mechanism of steel-concrete composite beams [J]. Journal of Wuhan University of Technology, 2015, 37(1): 75-80.
[11] 梁纬球，杨涛，陆艺. 体外预应力钢－混凝土组合梁连续倒塌性能分析[J]. 广西大学学报（自然科学版），2015，40(4): 862-868.
LIANG Wei-qiu, YANG Tao, LU Yi. Analysis on progressive collapse of externally prestressed steel-concrete composite beams [J]. Journal of Guangxi University, 2015, 40(4): 862-868.
[12] Jeyarajan S, Liew J Y R, Koh C G. Progressive Collapse Analysis of Steel-Concrete Composite Frames with Floor Slab Actions [M]. 2016.
[13] 乔惠云，杨应华，钟炜辉. 中柱失效下多层框架的连续性倒塌分析与机理研究[J]. 振动与冲击，2018, 37(22): 136-143.
QIAO Hui-yun，YANG Ying-hua，ZHONG Wei-hui. Progressive collapse analysis and mechanism study for multi-story frame structures with middle-column demolition [J]. Journal of Vibration and Shock, 2018, 37(22):136-143.
[14] DoD2009. Design of buildings to resist progressive collapse. Washington D. C: US Department of Defense, 2009.
[15] Abruzzo J, Matta A, Panariello G. Study of Mitigation Strategies for Progressive Collapse of a Reinforced Concrete Commercial Building [J]. Journal of Performance of Constructed Facilities, 2006, 20(4): 384-390.