【摘要】 为了研究AFRP加固节点的抗震性能,试验研究了不同加固方式和不同核心配箍率对节点抗震性能的影响,提出了一种新的锚固方式.研究结果表明:采用AFRP加固后的梁柱节点,破坏形式由脆性破坏变为延性破坏,承载力和极限水平位移均得到显著提高,最大提高值分别为53.40%和43.29%,耗能能力可提高0.3～2.3倍;压条锚固核心区域的X型FRP布是非常有效的.更多还原

【Abstract】 In order to study the seismic performances of steel reinforced concrete beam-column joints strengthened with AFRP sheets,this paper analyzes the effect of different rehabilitation schemes and different stirrups ratio in the joint core area by the experimental method,and a new anchoring method is presented. The experimental results show that the failure model of strengthened joints with AFRP is turned from brittleness failure to ductility failure,the ultimate strength and displacement are improved remarkably,the biggest increase value are 53.40% and 43.29% respectively,the energy dissipation capability can be increased 0.3～2.3 times;using X type AFRP sheets anchor in the joint core area is an effective anchorage method of seismic retrofitting.更多还原