Ultimate moment capacity of foamed and lightweight aggregate concrete-filled steel tubes

被引：18

作者：

Assi, IM

Qudeimat, EM

Hunaiti, YM

机构：

[1] Al Isra Univ, Dept Civil Engn, Amman 11191, Jordan

[2] Univ Jordan, Dept Civil Engn, Amman, Jordan

来源：

STEEL AND COMPOSITE STRUCTURES | 2003年 / 3卷 / 03期

关键词：

ultimate moment; composite section; lightweight concrete; foamed concrete; concrete contribution factor;

D O I：

10.12989/scs.2003.3.3.199

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

An experimental investigation of lightweight aggregate and foamed concrete contribution to the ultimate strength capacity of square and rectangular steel tube sections is presented in this study. Thirty-four simply supported beam specimens, 1000-mm long, filled with lightweight aggregate and foamed concretes were tested in pure flexural bending to calculate the ultimate moment capacity. Normal concrete-filled steel tubular and bare steel sections of identical dimensions were also tested and compared to the filled steel sections. Theoretical values of ultimate moment capacity of the beam specimens were also calculated in this study for comparison purposes. The test results showed that lightweight aggregate and foamed concrete significantly enhance the load carrying capacity of steel tubular sections. Furthermore, it can be concluded from this study that lightweight aggregate and foamed concretes can be used in composite construction to increase the flexural capacity of the steel tubular sections.

引用

页码：199 / 212

页数：14

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