Mechanical Behavior and Ultimate Strength of Circular CFT Columns Subjected to Axial Compression Loads
Abstract eng: In this paper, a simple formula for predicting the axial capacity of circular concrete-filled steel tube (CFT) stub columns is proposed. The concrete confinement, which depends mainly on the ratio of the external diameter of the steel tube to the plate thickness, the yield stress of the steel tube and the unconfined compressive strength of the filled concrete, is empirically deduced. A comparison with the experimental data published in the literature indicates that the present method provides more efficient representation of the ultimate strength of circular CFT stub columns than the existing codes, such as ACI-2005, AIJ-2001, Eurocode-2004 and DL/T-1999. Composite columns, Concrete, Steel, Tubes, Capacity, Confinement
Contributors:
Conference Title:
Conference Title:
14th World Conference on Earthquake Engineering
Conference Venue:
Bejing (CN)
Conference Dates:
2008-10-12 / 2008-10-17
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
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Record created 2014-12-05, last modified 2014-12-05
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