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| Experimental research on impact behavior of the BFRP confined concrete column |
| LI Ming-zhao1, ZHANG Zhi-gang1, GE Tao1,TAN Wan-peng1, GUO Jia-qi1,YAN Huan-min1 |
| 1. Department of Airfield and Building Engineering, Air Force Engineering University, Xi'an 710038, China |
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Abstract SHPB impact experiment has been made on plain concrete specimen and specimen confined with different amount of BFRP layers. The plain concrete specimen was made of C30, C40 and C50 cement. The damage phenomena of specimen was analysed, the influence of strain rate and confinement ratio to the stress-strain curve was also researched. The Dynamic strength fitting formula of the BFRP confined specimen was achieved. The test results show that the BFRP confined specimen have better anti-strike capability, energy absorption capability and deformability compared with those without BFRP confinement. The impact strength and deformability of specimen increase significantly with the increase of strain rate and the amount of BFRP layers, and the slope of the stress-strain curve decline section becomes smaller, which indicate that BFRP plays a greater role in concrete specimen.
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Received: 05 August 2015
Published: 15 November 2016
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