Flexural performance of concrete-encased concrete-filled steel tubes-Reference-Cited by-同舟云学术

Flexural performance of concrete-encased concrete-filled steel tubes

Published:2014-03 Issue:5 Volume:66 Page:249-267
ISSN:0024-9831
Container-title:Magazine of Concrete Research
language:en
Short-container-title:Magazine of Concrete Research

Author:

An Yu-Feng¹,Han Lin-Hai²,Roeder Charles³

Affiliation:

1. PhD Candidate, Department of Civil Engineering, Tsinghua University, Beijing, China

2. Professor, Department of Civil Engineering, Tsinghua University, Beijing, China

3. Professor, Department of Civil Engineering, University of Washington, Seattle, WA, USA

Abstract

The flexural performance of concrete-encased concrete-filled steel tubes (CFSTs) was investigated. A finite-element analysis (FEA) model is developed to analyse the flexural behaviour of the composite member and a set of test data used to verify the FEA modelling. Full-range analysis of the moment–curvature relation, the stress distributions across the composite section and the interactions between steel and concrete was carried out. It was found that thin-walled steel tubes can be used in concrete-encased CFSTs and develop full plastic strength without local buckling before reaching the ultimate state. A strut-and-tie model is proposed for the load transfer mechanism of a concrete-encased CFST member under bending. Finally, the paper presents a parametric study to derive simplified formulas for predicting the flexural capacity of concrete-encased CFST sections.

Publisher

Thomas Telford Ltd.

Subject

General Materials Science,Building and Construction,Civil and Structural Engineering

Link

https://www.icevirtuallibrary.com/doi/pdf/10.1680/macr.13.00268

Reference30 articles.

1. Experimental behaviour of box concrete-encased CFST eccentrically loaded column

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