RESEARCH ON BEARING CAPACITY OF CONCENTRICALLY LOADED STUB COLUMNS REINFORCED BY CONCRETE FILLED CFRP-STEEL TUBE

Ju Huan; Tang Ying; Zhang Changguang

doi:10.13204/j.gyjz200907026

Volume 39 Issue 7

Dec. 2014

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Ju Huan, Tang Ying, Zhang Changguang. RESEARCH ON BEARING CAPACITY OF CONCENTRICALLY LOADED STUB COLUMNS REINFORCED BY CONCRETE FILLED CFRP-STEEL TUBE[J]. INDUSTRIAL CONSTRUCTION, 2009, 39(7): 95-97. doi: 10.13204/j.gyjz200907026

Citation:

Ju Huan, Tang Ying, Zhang Changguang. RESEARCH ON BEARING CAPACITY OF CONCENTRICALLY LOADED STUB COLUMNS REINFORCED BY CONCRETE FILLED CFRP-STEEL TUBE[J]. INDUSTRIAL CONSTRUCTION, 2009, 39(7): 95-97. doi: 10.13204/j.gyjz200907026

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RESEARCH ON BEARING CAPACITY OF CONCENTRICALLY LOADED STUB COLUMNS REINFORCED BY CONCRETE FILLED CFRP-STEEL TUBE

doi: 10.13204/j.gyjz200907026

1.
1. Jingjiang Architectural Design Co. Ltd,Jingjiang 214500,China;
2.
2. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education,Tongji University,Shanghai 200092,China

Received Date: 2008-10-07
Publish Date: 2009-07-20

Abstract

Abstract

Based on unified strength theory and some essential suppositions,the ultimate bearing capacity formula of concentrically compressed stub columns reinforced by concrete filled circular CFRP-steel tube is deduced,considering the restriction of CFRP-steel tube to inner concrete and vertical bearing capacity of outer reinforced concrete.The results of the proposed formula are found in good agreement with experiment results.In the last,the effects of the total confinement factor,confinement factor of steel tube and confinement factor of CFRP on the ultimate bearing capacity are analyzed.
- unified strength theory concentrically,
- columns of concrete-filled CFRP-steel tube ultimate,
- bearing capacity,
- confinement factor