衝撃（実験） (2)

[I-265] CONSECUTIVE IMPACT LOADING TEST OF RC BEAMS STRENGTHENED WITH AFRP SHEET

*Le Huy Sinh¹、Komuro Masato¹、Kishi Norimitsu¹、Mikami Hiroshi²、Kawarai Tomoki¹ (1. Muroran Institute of Technology、2. Sumitomo-Mitsui Construction Co. Ltd.)

キーワード：FRP sheet、flexural strengthening、consecutive impact loading、RC beams、sheet debonding

In order to establish a rational reinforcing method of impact-resistant capacity for reinforced concrete (RC) beams, a successive falling-weight impact loading test of the flexural strengthened RC beams with an aramid fiber reinforced polymer (AFRP) sheet was conducted. In this paper, the AFRP sheet having a mass of 1660 g/m² were bonded to the tension-side surface of the beams. From this study, the results obtained were as follows: 1) maximum and residual deflections of the beams considerably decreased by bonding AFRP sheet to the beam bottom tension-side surface; and 2) absolute maximum and absolute residual deflections increased linearly with accumulated input impact energy.