STATIC PEＲFOＲMANCE OF CONCＲETE FILLED SQUAＲE STEEL
TUBULAR BEAM-COLUMN STRENGTHENED BY CFRP EXTERNALLY(I):EXPERIMENTAL STUDY AND FINITE ELEMENT SIMULATION

Wang Qingli; Chen Xingyu; Zhang Zhirun

Volume 44 Issue 07

Jan. 2015

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2014 > 44(07): 141-145

Li Guodong, Wang Zonglin. ANALYSIS OF RESTRAINED SHRINKAGE OF INTERMITTENT CASTING CONCRETE SLAB IN THE EARLY AGE[J]. INDUSTRIAL CONSTRUCTION, 2014, 44(04): 73-77.

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Wang Qingli, Chen Xingyu, Zhang Zhirun. STATIC PEＲFOＲMANCE OF CONCＲETE FILLED SQUAＲE STEEL TUBULAR BEAM-COLUMN STRENGTHENED BY CFRP EXTERNALLY(I):EXPERIMENTAL STUDY AND FINITE ELEMENT SIMULATION[J]. INDUSTRIAL CONSTRUCTION, 2014, 44(07): 141-145.

Li Guodong, Wang Zonglin. ANALYSIS OF RESTRAINED SHRINKAGE OF INTERMITTENT CASTING CONCRETE SLAB IN THE EARLY AGE[J]. INDUSTRIAL CONSTRUCTION, 2014, 44(04): 73-77.

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STATIC PEＲFOＲMANCE OF CONCＲETE FILLED SQUAＲE STEEL TUBULAR BEAM-COLUMN STRENGTHENED BY CFRP EXTERNALLY(I):EXPERIMENTAL STUDY AND FINITE ELEMENT SIMULATION

Publish Date: 2014-07-20

Abstract

Abstract

Taking slenderness ratio and eccentricity ratio as the principal factors，static behavior of 24 pieces of concrete filled square steel tubular beam-columns strengthened by CFＲP externally ( S-CF-CFＲP-ST ) were experimentally investigated． The test results showed that the axial load-deflection curves on the cross-section at midheight of the composite members could be divided into elastic stage，elasto-plastic stage and softening stage． Analysis on the experimental results showed that the steel tube and its outer CFＲP material could cooperate both longitudinally and transversely，in addition，deflection curves of the tested members behaved much similarly as half sinusoidal curve． The failure modes and the axial load-deflection curves on the cross-section at mid-height of the specimens were simulated by using ABAQUS software． The simulated results agreed well with experimental values．
- square steel strengthened by CFＲP externally,
- in-filled concrete,
- beam-column,
- experimental study,
- finite element simulation

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