TY - GEN
T1 - Mechanical performance of beams strengthened by carbon fiber sheet bonded with inorganic adhesive after fire
AU - Wan, Fuxiong
AU - Zheng, Wenzhong
PY - 2013
Y1 - 2013
N2 - According to the fact that softening temperature of organic epoxy adhesive is too low to meet fire, an inorganic adhesive whose strength at 600°C is not lower than that at normal room temperature, is developed to bond Carbon Fiber Sheet (CFS) in order to strengthen reinforced concrete beams. To understand all-round mechanical performance of RC beams strengthened by CFS bonded by an inorganic adhesive after fire, on the base of experimental research, Conjugate Beam Method is used to analyze the whole mechanical process from loading to failure. The test and analysis results show that, for RC slabs strengthened by CFS bonding with the inorganic adhesive, maximum stress of CFS decreases with small amplitude compared with that before fire, and the strength of the sheet can be utilized to a great extent, even if temperature (about 300°C~470°C) an inorganic adhesive experienced outclasses softening temperatures of ordinary organic epoxy adhesives. Beams strengthened by CFS bonded with inorganic adhesive perform good fire behavior.
AB - According to the fact that softening temperature of organic epoxy adhesive is too low to meet fire, an inorganic adhesive whose strength at 600°C is not lower than that at normal room temperature, is developed to bond Carbon Fiber Sheet (CFS) in order to strengthen reinforced concrete beams. To understand all-round mechanical performance of RC beams strengthened by CFS bonded by an inorganic adhesive after fire, on the base of experimental research, Conjugate Beam Method is used to analyze the whole mechanical process from loading to failure. The test and analysis results show that, for RC slabs strengthened by CFS bonding with the inorganic adhesive, maximum stress of CFS decreases with small amplitude compared with that before fire, and the strength of the sheet can be utilized to a great extent, even if temperature (about 300°C~470°C) an inorganic adhesive experienced outclasses softening temperatures of ordinary organic epoxy adhesives. Beams strengthened by CFS bonded with inorganic adhesive perform good fire behavior.
KW - After fire
KW - An inorganic adhesive
KW - Carbon fiber sheet
KW - Conjugate beam method
KW - RC beam
UR - https://www.scopus.com/pages/publications/84872901873
U2 - 10.4028/www.scientific.net/AMM.256-259.873
DO - 10.4028/www.scientific.net/AMM.256-259.873
M3 - 会议稿件
AN - SCOPUS:84872901873
SN - 9783037855652
T3 - Applied Mechanics and Materials
SP - 873
EP - 877
BT - Advances in Civil Engineering II
T2 - 2nd International Conference on Civil Engineering and Transportation, ICCET 2012
Y2 - 27 October 2012 through 28 October 2012
ER -