地震作用下钢-FRP复合配筋混凝土柱试验研究(英文)
发布时间:2019-05-22 05:26
【摘要】:为了研究复合配筋混凝土柱的动力响应性能特征,进行了等初始刚度的普通钢筋混凝土(RC)柱、钢-连续纤维(FRP)复合筋(SFCB)混凝土柱和混杂配筋混凝土柱(钢筋/FRP筋,C-H)振动台试验.研究结果表明,不同配筋混凝土柱的加速度峰值响应差别不大;RC柱在柱台输入波峰值加速度达到100 cm/s~2之后,塑性铰区钢筋塑性应变快速发展,且有较大震后残余应变;SFCB柱在纵筋峰值应变达到0.015时,相应残余应变依然在5×10-4以下;C-H柱具有和SFCB柱类似的残余应变较小的优势.总体而言,在普通环境下混杂配筋柱可以实现较小的震后残余应变,而SFCB混凝土柱具有较高的震后可修复性(较小残余位移)的同时,可以在海洋等恶劣环境下具有高耐久性.
[Abstract]:In order to study the dynamic response characteristics of composite reinforced concrete columns, ordinary reinforced concrete (RC) columns with equal initial stiffness are carried out. Steel-continuous fiber (FRP) composite reinforcement (SFCB) concrete column and hybrid reinforced concrete column (steel / FRP bar, C 鈮,
本文编号:2482716
[Abstract]:In order to study the dynamic response characteristics of composite reinforced concrete columns, ordinary reinforced concrete (RC) columns with equal initial stiffness are carried out. Steel-continuous fiber (FRP) composite reinforcement (SFCB) concrete column and hybrid reinforced concrete column (steel / FRP bar, C 鈮,
本文编号:2482716
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