Anti-progressive collapse analysis for steel concentrically braced frame under vierendeel action

被引：0
|
作者：
Qiao H. [1 ,2 ]
Wei J. [3 ]
Tian L. [3 ]
机构：
[1] College of Civil Engineering, Fujian University of Technology, Fuzhou
[2] Fujian Provincial Key Laboratory of Advanced Technology and Informatization in Civil Engineering, Fuzhou
[3] College of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2019年 / 38卷 / 24期
关键词：
Dynamic effect; Multi-story frame structure; Progressive collapse; Steel concentrically braced frame; Vierendeel action;
D O I：
10.13465/j.cnki.jvs.2019.24.016
中图分类号：
学科分类号：
摘要：
Multi-story frame structures exhibit different anti-collapse mechanisms after key components failed. The Vierendeel action is one of the important anti-progressive collapse mechanisms. The dynamic non-linear analysis considering damage and strain rate was used to simulate column-removal tests by other scholars on multi-story frames, and a theoretical model of the Vierendeel action was proposed. Then, the steel concentrically braced frame commonly used in seismic design was improved, and horizontal bracing was arranged on the top story. Finally, the horizontal bracing system was applied to the Ohio Union building. The results show that the Vierendeel action is the result of the internal forces redistribution among the vertical members, which reflects the overall stress characteristics of the frame structure. The Vierendeel action and other anti-collapse mechanisms together resist the unbalanced load. The top horizontal bracing can significantly reduce the displacement at the failure point, play the role of Vierendeel action, and improve the progressive collapse resistance of the structure. After two middle-column of the Ohio Union building fail, the bracing system transfers most of the gravity of the failed span to the adjacent structure. © 2019, Editorial Office of Journal of Vibration and Shock. All right reserved.
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页码：115 / 121and157
相关论文
共 20 条
  • [1] Li Y., Lu X., Ye L., Progressive collapse resistance demand of RC frame structures based on energy method I: beam mechanism, Journal of Building Structures, 32, 11, pp. 1-8, (2011)
  • [2] Yang B., Tan K., Experimental tests of different types of bolted steel beam-column joints under a central-column-removal scenario, Engineering Structures, 54, pp. 112-130, (2013)
  • [3] Wang W., Li L., Chen Y., Et al., Experimental investigation on progressive collapse behavior of WUF-B connections between SHS column and H beam, Journal of Building Structures, 35, 4, pp. 92-99, (2014)
  • [4] Dinu F., Marginean I., Dubina D., Experimental testing and numerical modelling of steel moment-frame connections under column loss, Engineering Structures, 151, pp. 861-878, (2017)
  • [5] Zhong W.H., Meng B., Hao J.P., Performance of different stiffness connections against progressive collapse, Journal of Constructional Steel Research, 135, pp. 162-175, (2017)
  • [6] Zhou Y., Li Y., Lu X., Et al., An analytical model of compressive arch action of reinforced concrete frames to resist progressive collapse, Engineering Mechanics, 33, 4, pp. 34-42, (2016)
  • [7] Sagiroglu S., Sasani M., Progressive collapse-resisting mechanisms of reinforced concrete structures and effects of initial damage locations, Journal of Structural Engineering, 140, 3, (2013)
  • [8] Qiao H., Yang Y., Zhong W., Progressive collapse analysis and mechanism study for multi-story frame under middle-column loss, Journal of Vibration and Shock, 37, 22, pp. 136-143, (2018)
  • [9] Qiao H., Yang Y., Zhang J., Progressive collapse analysis of multi-story moment frames with varying mechanisms, Journal of Performance of Constructed Facilities, 32, 4, (2018)
  • [10] Dong Z., Li G., Li H., A simplified method for seismic performance evaluation of MDOF steel concentrically braced frames, Journal of Building Structures, 39, 5, pp. 1-9, (2018)
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