Impact Testing of Reinforced Concrete Beams Shear-Strengthened with Fiber-Reinforced Polymer Wraps
Impact Testing of Reinforced Concrete Beams Shear-Strengthened with Fiber-Reinforced Polymer Wraps
复制标题
纤维增强聚合物包裹剪切加固钢筋混凝土梁的冲击试验
DOI：
10.14359/51723497
复制
发表时间：
2020-05-01
影响因子：
1.8
通讯作者：
Xiao, Yan
中科院分区：
文献类型：
--
作者：
Liu, Tao;Kang, Thomas H-K;Xiao, Yan
对外贴碳纤维布（CFRP）加固钢筋混凝土梁在低速冲击荷载作用下的动力性能进行了试验研究。采用仪器化落锤式冲击试验机对12根钢筋混凝土简支梁试件进行了冲击试验。主要变量是CFRP包裹物的中心到中心的间距，其在三个级别上进行改造，从轻到临界，再到重强化。对所有试件的动力响应进行了详细的监测和讨论。分析了CFRP条带间距和剪跨比对梁试件动力响应的影响。
The dynamic behavior of reinforced concrete (RC) beams shear-strengthened with externally bonded carbon fiber-rein forced polymer (CFRP) wraps under low-velocity impact loading was experimentally investigated. Twelve simply supported RC beam specimens classified into two groups according to stirrup ratios of 0 and 0.1% were tested using an instrumented drop-weight impact machine. The main variable was the center-to-center spacing of the CFRP wraps, which was retrofit at three levels from light, to critical, and to heavy strengthening. The dynamic responses of all the specimens are monied and discussed in detail. Effects of the CFRP strip spacing and shear span-depth ratio on dynamic response of beam specimens are analyzed.