Advanced Steel Construction

Vol. 16, No. 1, pp. 20-29 (2020)


 MULTI-STOREY COMPOSITE FRAMED-STRUCTURES DUE TO EDGE-COLUMN LOSS

 

Guo-qiang Li 1,2, Jing-zhou Zhang 1, * and Jian Jiang 3

1 College of Civil Engineering, Tongji University, Shanghai, China

2 State Key Laboratory for Disaster Reduction in Civil Engineering, Shanghai, China

3 Jiangsu Key Laboratory of Environmental Impact and Structural Safety in Engineering, China University of China University of Mining and Technology, Xuzhou, China

*(Corresponding author: E-mail:This email address is being protected from spambots. You need JavaScript enabled to view it.)

Received: 12 February 2019; Revised: 24 May 2019; Accepted: 5 September 2019

 

DOI:10.18057/IJASC.2020.16.1.3

 

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ABSTRACT

This paper proposes an analytical method to predict the progressive collapse resistance of multi storey composite framed structures due to different scenarios of edge column loss. These include the removal of edge intermediate (EI) or edge corner (EC) column. The proposed method accounts for the tensile membrane action of slabs and vierendeel effect of the steel frames. The reliability of the proposed method is verified against validated numerical simulations. Parametric studies show that for EI column loss scenario, the vierendeel effect increases the plastic capacity of the structure but has limited influence on the ultimate capacity. However, the vierendeel effect significantly enhances the structural resistance against EC column loss (>60%). It is thus over conservative to determine the progressive collapse resistance of multi storey structures based on that of single storey structures where no vierendeel effect is considered. Catenary action in steel beams has not noticeably developed under the removal of a corner column. In this case, it is recommended to calculate the ultimate bearing capacity of structures under a corner column removal according to the yield line theory.

 

KEYWORDS

Collapse resistance, Multi storey, Composite framed structure, Catenary action, Vierendeel effect


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