Research on anti-collapse performance of composite beam-column substructures with different beam line stiffness

PDF(2601 KB)

Journal of Vibration and Shock ›› 2021, Vol. 40 ›› Issue (10) : 57-66.

TAN Zheng1，ZHONG Weihui1,2，DUAN Shichao1，MENG Bao1，ZHENG Yuhui1，SONG Xiaoyan1

Author information +

History +

Abstract

When a column of a steel frame structure fails, the two-bay beams connected with the failed column play a key role in the internal force redistribution and re-equilibrium of the remaining structure, at that time, the beam line stiffness has a significant impact on the collapse resistance of the structure.The quasi-static test results of a composite beam-column substructure with rigid connections were used to verify the finite element modeling method.The full-scale model of the composite beam-column substructure with different beam line stiffness was established and the influence of beam line stiffness on the internal force development and collapse resistance of the composite beam-column substructure were emphatically analyzed.The current structural failure criterion based on deformation was modified, and on this basis, the contribution of the flexural mechanism and catenary mechanism resistances was quantitatively analysed, providing a basis for structural collapse resistance design and a reference for practical engineering application.The analysis results show that the linear stiffness of the two-bay beams determines the resistance level of the flexural mechanism, while the span of the two-bay beams determines the resistance level of the catenary mechanism.The beam height has little influence on it, and the excessive beam line stiffness is not conducive to the displacement development of the structure.

Key words

composite beam-column substructure / progressive collapse / beam line stiffness / failure criterion / quantitative assessment

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

TAN Zheng1，ZHONG Weihui1,2，DUAN Shichao1，MENG Bao1，ZHENG Yuhui1，SONG Xiaoyan1. Research on anti-collapse performance of composite beam-column substructures with different beam line stiffness[J]. Journal of Vibration and Shock, 2021, 40(10): 57-66

References

［1］DOD.Design of buildings to resist progressive collapse: UFC 4-023-03［S］.Washington, D.C.: Department of Defense, 2009.

［2］GSA.Alternate path analysis & design guidelines for progressive collapse resistance: GSA 2013［S］.Washington, D.C.: General Services Administration, 2013.

［3］建筑结构抗倒塌设计规范: CECS 392—2014［S］.北京: 中国计划出版社, 2014.

［4］MENG B, ZHONG W H, HAO J P.Anti-progressive collapse behavior of beam-to-column assemblies with bolted-angle connections under different span ratios［J］.Advances in Structural Engineering, 2018, 21(6): 891-905.

［5］WANG W, WANG J J, SUN X, et al.Slab effect of composite subassemblies under a column removal scenario［J］.Journal of Constructional Steel Research, 2017,129(2): 141-155.

［6］史艳莉, 石晓飞, 王文达, 等.圆钢管混凝土柱-H钢梁内隔板式节点抗连续倒塌机理研究［J］.振动与冲击, 2016,35(19): 148-155.
SHI Yanli, SHI Xiaofei, WANG Wenda, et al.Progressive collapse mechanism for H-beam-concrete-filled steel tubular column connections with inner-diaphragm joints［J］.Journal of Vibration and Shock, 2016,35(19): 148-155.

［7］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.

［8］WENG J, LEE C K, TAN K H, et al.Damage assessment for reinforced concrete frames subject to progressive collapse［J］.Engineering Structures, 2017,149: 147-160.

［9］ZHONG W H, MENG B, HAO J P.Performance of different stiffness connections against progressive collapse［J］.Journal of Constructional Steel Research, 2017,135: 162-175.

［10］LOH H Y, UY B, BRADFORD M A.The effects of partial shear connection in composite flush end plate joints Part II: analytical study and design appraisal［J］.Journal of Constructional Steel Research, 2006,62(4): 391-412.

［11］钢结构设计标准: GB 50017—2017［S］.北京: 中国建筑工业出版社, 2017.

［12］IZZUDDIN B A, VLASSIS A G, NETHERCOT D A.Progressive collapse of multi-storey buildings due to sudden column loss-part I:simplified assessment pramework［J］.Engineering Structures, 2008, 30(5): 1308-1318.

［13］ZHONG W H, TAN Z, SONG X Y, et al.Anti-collapse analysis of unequal span steel beam-column substructure considering the composite effect of floor slabs［J］.Advance Steel Construction, 2019,15(4): 377-385.

［14］Recommended seismic evaluation and upgrade criteria for existing welded steel moment-frame buildings: FEMA-351［S］.California: Federal Emergency Management Agency, 2000.

［15］混凝土结构设计规范: GB 50010—2010［S］.北京: 中国建筑工业出版社, 2010.

［16］YU H L, JEONG D Y.Application of a stress triaxiality dependent fracture criterion in the finite element analysis of unnotched Charpy specimens［J］.Theoretical & Applied Fracture Mechanics, 2010,54(1): 54-62.

［17］LEE Y W, WIERZBICKI T.Quick fracture calibration for industrial use: 115［R］.Cambridge: Massachusetts Institute of Technology, 2004.

［18］赵鸿铁, 张素梅.组合结构设计原理［M］.北京：高等教育出版社, 2005.

［19］钟炜辉, 谭政, 宋晓燕, 等.基于楼板组合效应的梁柱子结构抗倒塌性能研究［J］.振动与冲击, 2021,40(10): 261-270.
ZHONG Weihui, TAN Zheng, SONG Xiaoyan, et al.Analysis of anti-collapse performance for beam-column substructure based on composite effect of floor slabs［J］.Journal of Vibration and Shock, 2021,40(10): 261-270.