|Table of Contents|

[1] Huang Lihua, Li Yujing, Wang Yuefang,. Strengthening effects of BFRP on reinforced concrete beams [J]. Journal of Southeast University (English Edition), 2013, 29 (2): 182-186. [doi:10.3969/j.issn.1003-7985.2013.02.013]

Strengthening effects of BFRP on reinforced concrete beams()

Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

2013 2
Research Field:
Civil Engineering
Publishing date:


Strengthening effects of BFRP on reinforced concrete beams
Huang Lihua Li Yujing Wang Yuefang
School of Civil Engineering, Dalian University of Technology, Dalian 116023, China
basalt fiber reinforced polymer(BFRP) strengthening reinforced concrete beam experiment strengthening guidelines
Reinforced concrete(RC)beams externally bonded with basalt fiber reinforced polymer(BFRP)are experimentally investigated by using different numbers of bonding plies, transverse anchorages as well as the initial conditions of strengthened beams. The performances of the BFRP strengthening are compared with those of the carbon fiber reinforced polymer(CFRP)and the glass fiber reinforced polymer(GFRP)under the same experimental condition. Experimental results indicate that the strength and ductility of the strengthened beam with two plies of the BFRP are improved remarkably than those with one ply. The strengthening effects of the BFRP lie between those of the CFRP and the GFRP. The BFRP strengthening is little influenced by pre-cracks of concrete. Most failures are caused by interfacial debonding induced by flexural cracks in the experiment. Clamping of U-wraps along the whole beam is less efficient than endpoint anchorage for increasing the ultimate load of the strengthened beam. Finally, the models suggested by the five guidelines for predicting the debonding strain of the CFRP are extended to the BFRP and the conservative estimates of the debonding strain of the BFRP are given as well.


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Biography: Huang Lihua(1967—), female, associate professor, lhhang@dlut.edu.cn.
Citation: Huang Lihua, Li Yujing, Wang Yuefang.Strengthening effects of BFRP on reinforced concrete beams[J].Journal of Southeast University(English Edition), 2013, 29(2):182-186.[doi:10.3969/j.issn.1003-7985.2013.02.013]
Last Update: 2013-06-20