Concrete filled double skin circular stub columns under compression

被引：225

作者：

Uenaka, Kojiro ^{[1
]}

Kitoh, Hiroaki ^{[2
]}

Sonoda, Keiichiro

机构：

[1] Kobe City Coll Technol, Dept Civil Engn, Nishi Ku, Kobe, Hyogo 6512194, Japan

[2] Osaka City Univ, Dept Urban Engn, Osaka, Japan

来源：

THIN-WALLED STRUCTURES | 2010年 / 48卷 / 01期

关键词：

Concrete filled double skin tubular column; Concrete filled tubular column; Axially loading capacities; Inner-to-outer diameter ratio; Confined effect; SANDWICH TUBE; SHS INNER; PERFORMANCE; TESTS; OUTER;

D O I：

10.1016/j.tws.2009.08.001

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Concrete filled double skin tubular (CFDST in abbreviation) stub columns consist of double concentric thin steel tubes and filled concrete between them. Their mechanical behaviors under axial compression were investigated experimentally. Two testing parameters considered were inner-to-outer diameters ratio and diameter-to-thickness ratio. Observed failure modes were controlled by the local buckling of both the tubes associated with shearing failure of the filled concrete. Main discussion is given on confinement effect by the outer tube to the filled concrete strength. Equations to estimate their ultimate strengths under compression were proposed based upon the yielding strengths of the tubes and the filled concrete cylinder strength. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：19 / 24

页数：6

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