Reference Type:  Journal Article
Record Number: 1
Author: Zhong, Wei-hui, Tan, Zheng, Song, Xiao-yan and Meng, Bao
Year: 2019
Title: ANTI-COLLAPSE ANALYSIS OF UNEQUAL SPAN STEEL BEAM–COLUMN
SUBSTRUCTURE CONSIDERING THE COMPOSITE EFFECT OF FLOOR SLABS
Journal: Advanced Steel Construction 
Volume: 15
Issue: 4
Pages: 377–385
Date: Dec
Type of Article: Article
Short Title: ANTI-COLLAPSE ANALYSIS OF UNEQUAL SPAN STEEL BEAM–COLUMN
SUBSTRUCTURE CONSIDERING THE COMPOSITE EFFECT OF FLOOR SLABS
Alternate Journal: Adv. Steel Constr.
ISSN: 1816-112X
DOI: 10.18057/IJASC.2019.15.4.8
Keywords: Composite beam–column frame
Anti-collapse mechanism
Progressive collapse
Arch action
Unequal spans
Abstract: Based on the alternate load path method and considering the composite effect of floor slabs, a beam–column frame with
unequal spans was studied to derive the equations for the load–deformation relationship at five different stages (elastic,
elastic–plastic, plastic, transient, and catenary) during progressive collapse. The anti-collapse mechanism of the composite
beam–column frame and the influence of arch action were carefully analyzed. A numerical model was established using
ABAQUS for the relevant model, and the model was verified by comparison with experimental data. Further, the
theoretical equations were compared with the results of numerical simulations for different span ratios. The results show
that the theoretical equations possess good generality and high accuracy for analyzing progressive collapse of a composite
beam–column frame with unequal spans.
Author Address: 1 School of Civil Engineering, Xi'an University of Architecture & Technology, Xi'an 710055, China
2Key Lab of Structural Engineering and Earthquake Resistance, Ministry of Education, Xi’an University of Architecture and Tech nology, Xi’an 710055, China
*(Corresponding author: E-mail:zhongweihui1980@163.com)
Language: English