Chapter
Apr 21, 2012
Structural Design of Concrete Filled Steel Elliptical Hollow Sections
Publication: Composite Construction in Steel and Concrete VI
Abstract
This paper presents the behaviour and design of axially loaded elliptical steel hollow sections filled with normal and high strength concrete. The experimental investigation was conducted with three nominal wall thickness (4mm, 5mm and 6.3mm) and different infill concrete cube strengths varied from 30 to 100 MPa. The effect of steel tube thickness, concrete strength, and confinement were discussed together with column strengths and load-axial shortening curves were evaluated. The study is limited to cross-section capacity and has not been validated at member level. Comparisons of the tests results together with other available results from the literature have been made with current design method used for the design of composite circular steel sections in Eurocode 4 and AISC codes. It was found that existing design guidance for concrete filled circular hollow sections may generally be safely applied to concrete filled elliptical steel tubes.
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© 2011 American Society of Civil Engineers.
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Published online: Apr 21, 2012
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School of Civil Engineering, University of Leeds, LS2 9JT, UK.E-mail: [email protected]
School of Civil Engineering, University of Leeds, LS2 9JT, UK.E-mail: [email protected]
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