Impact-Resistant Performance of RC Beam Strengthened with Externally Bonded AFRP Sheet
Wang Xing-guo1, Kurihashi Yusuke2, Zhu Kun-jia1
1.School of Civil Engineering, Henan Polytechnic University, Jiaozuo 454003, China;
2. College of Environmental Technology,Muroran Institute of Technology,Muroran 0508585, Japan
Abstract：Eight RC beams were designed to test the impact-resistant behavior which six RC beams were strengthened with externally bonded(EB) aramid fiber reinforced polymer(AFRP) sheet, especially falling-weight impact tests under different heights. The test results show that deflection and plastic deformation of RC beams can be restrained effectively which were strengthened with EB AFRP sheet. At the same time, EB AFRP sheet can slow crack development and mitigate the impact damage caused by falling-weight loading. Type of AFRP sheets and impact heights are directly related to the damage state of RC beams. EB AFRP sheet can obviously improve the impact-resistant performance of RC beams which key parameter is the type of AFRP sheet.
[1] 汪 敏，石少卿，阳友奎. 新型柔性棚洞在落石冲击作用下的试验研究[J]. 土木工程学报，2013,46(9):131-137.
WANG Min, SHI Shao-qing, YANG You-kui. Experimental study on a new type flexible rock-shed under impact of rockfall[J].China Civil Engineering Journal,2013,46(9):131- 137. (in Chinese)
[2] 霍静思，任晓虎，肖岩. 标准火灾作用下钢管混凝土短柱落锤动态冲击试验研究[J]. 土木工程学报，2012,45(4):9-10.
HUO Jing-si, REN Xiao-hu, XIAO Yan. Impact behavior of concrete-filled steel tubular stub columns under ISO-834 standard fire[J].China Civil Engineering Journal,2012,45(4): 9-10.(in Chinese)
[3] 侯川川，王蕊，韩林海. 低速横向冲击下钢管混凝土构件的力学性能研究[J].工程力学，2012, 29（增I）：107-110.
HOU Chuan-chuan, WANG Rui, HAN Lin-hai. Performance of concrete-filled steel tubular (CFST)members under low velocity transverse impact[J].Engineering Mechanics,2012, 29(Sup I):107-110.(in Chinese)
[4] 岸 德光，西 弘明，今野久志，等. 2辺支持大型RCスラブに関する重錘落下衝擊実験[C].構造工学論文集，2011,57A:1181-1193.
[5] 岡田慎哉，岸 德光，西 弘明，等. RCラーメン構造の耐衝擊挙動に関する実験的検討および数値解析手法の妥当性検討[C]. 構造工学論文集，2009，55A：1388-1398.
[6] Tachibana S, Masuya H, Nakamura S. Performance based design of reinforced concrete beams under impact[J]. Natural Hazards and Earth System Science, 2010,10(6):1069-1078.
[7] Kishi N, Mikami H. Empirical formulas for designing reinforced concrete beams under impact loading[J]. ACI Structural Journal, 2012,109(4): 509-519.
[8] 许 斌，曾翔. 冲击荷载作用下钢筋混凝土梁性能试验研究[J]. 土木工程学报，2014,47(2):41-42.
XU Bin, ZENG Xiang. Experimental study on the behaviors of reinforced concrete beams under impact loadings[J].China Civil Engineering Journal,2014,47(2):41-42.(in Chinese)
[9] 岸 德光，三上 浩. 衝擊荷重载荷時に曲げ破壞が卓越するRC梁の性能照查型耐衝擊設計法に関する一提案[C].構造工学論文集，2007,53A: 1251-1260.
[10] Rabinovitch O. Dynamic edge debonding in FRP strengthened beams. European Journal of Mechanics A/Solids, 2014,47:309- 326.
[11] 廖维张，张伟，田志敏. 高强钢绞线网-高性能砂浆加固钢筋混凝土梁抗冲击性能试验研究[J].振动与冲击,2014,33 (12): 200-206.
LIAO Wei-zhang, ZHANG Wei, TIAN Zhi-wei. Tests for impact resistance properties of RC beams strengthened with high strength steel wire mesh and high performance mortar[J].Journal of Vibration and Shock,2014,33(12):200-206.
[12] 梁磊，顾强康，原璐. AFRP约束混凝土多次冲击试验研究[J]. 振动与冲击，2013,32（5）：90-95.
LIANG Lei, GU Qiang-kang, YUAN Lu. Experimental research on AFRP confined concrete under repeated impact[J].Journal of Vibration and Shock, 2013,32(5):90-95.
