TY - JOUR
T1 - Compressive and flexural behaviour of CFRP-repaired concrete-filled steel tubes after exposure to fire
AU - Tao, Zhong
AU - Han, Lin-Hai
AU - Wang, LingLing
PY - 2007
Y1 - 2007
N2 - This paper presents the results of axial compression and bending tests of fire-damaged concrete-filled steel tubes (CFST) repaired using unidirectional carbon fibre reinforced polymer (CFRP) composites. Both circular and square specimens were tested to investigate the repair effects of CFRP composites on them. The test results showed that the CFRP jackets enhanced the load-bearing capacity of the stub columns effectively. Enhancement of the columns' stiffness due to the CFRP jackets was also observed. However, for beams, the test results demonstrated that the repair effect was not as good when compared with that for stub columns. From the test results, it is recommended that other appropriate repair measures should be taken in repairing severely fire-damaged CFST beams, or those members subjected to comparatively large bending moments.
AB - This paper presents the results of axial compression and bending tests of fire-damaged concrete-filled steel tubes (CFST) repaired using unidirectional carbon fibre reinforced polymer (CFRP) composites. Both circular and square specimens were tested to investigate the repair effects of CFRP composites on them. The test results showed that the CFRP jackets enhanced the load-bearing capacity of the stub columns effectively. Enhancement of the columns' stiffness due to the CFRP jackets was also observed. However, for beams, the test results demonstrated that the repair effect was not as good when compared with that for stub columns. From the test results, it is recommended that other appropriate repair measures should be taken in repairing severely fire-damaged CFST beams, or those members subjected to comparatively large bending moments.
KW - axial loads
KW - beams
KW - carbon fibre reinforced polymers
KW - columns
KW - composite construction
KW - concrete-filled tubes
KW - fires
KW - tubular steel structures
UR - http://handle.uws.edu.au:8081/1959.7/512043
U2 - 10.1016/j.jcsr.2006.09.007
DO - 10.1016/j.jcsr.2006.09.007
M3 - Article
SN - 0143-974X
JO - Journal of Constructional Steel Research
JF - Journal of Constructional Steel Research
ER -