【摘要】 基于碳纤维增强塑料筋(Carbonfiber reinforced plastic,CFRP)预应力粗纤维混凝土梁的低周反复加载试验,对其受力过程、破坏形态、滞回曲线、骨架曲线、延性、刚度退化、耗能能力等抗震性能进行较为深入的研究与分析。研究表明,预应力FRP(fiber reinforced plastic)筋能明显提高试件梁的承载力,中等预应力度的CFRP预应力粗纤维混凝土梁有较好的抗震性能和延性。并用ANSYS软件进行模拟分析,计算值与试验结果吻合良好。更多还原

【Abstract】 Based on experiments of CFRP(Carbon fiber reinforced plastic)prestressed macro-fiber concrete beams under low reversed cyclic loading,failure pattern,hysteresis curves,ductility,rigidity degeneration,energy dissipation are studied systematically.Studies show prestressed FRP(fiber reinforced plastic) tendons can obviously improve the carrying capacity of concrete beams,and FRP prestressed macro-fiber concrete beams has better seismic performance and ductility.The simulation analysis of concrete beams based on ANSYS program is carried out,calculation results are in good agreement with those of the tests.更多还原