【摘要】 通过对一榀在转换梁上下部均配有碳纤维增强塑料筋、缩尺比例为1∶3的框支转换梁结构分别施加竖向荷载与水平荷载,并进行水平荷载低周反复加载试验,描述试件整个受力过程与破坏形态,分析滞回曲线、骨架曲线与延性等抗震性能。试验结果表明,采取可靠锚固措施的碳纤维增强塑料筋能与钢筋在试件中共同工作;试件延性因数大于3,屈服破坏机制较为合理,具有较好的抗震性能。更多还原

【Abstract】 According to experimental achievements of vertical and horizontal loading to one reinforced concrete structure specimen with frame supported transfer beam,on and below which has 3 carbon fiber reinforced plastic(CFRP)tendons respective ly in replacement of the concrete reinforced bars in the beam,the stress process and failure pattern of whole specimmen,the hystere sis curve,skeleton curve and ductility are systematically studied.The results show that the ductility factor of the specimen with the combination of CFRP tendons which is reliably anchored is larger than 3.The yield failure mechanism is reasonable and the seismic performance is credible.So the problems of the traditional transfer beams,including large section size,heavy reinforcement and dif ficult construction,can all be solved well by using the transfer beam which has CFRP replacements.更多还原