地震作用下鋼-FRP復合配筋混凝土柱試驗研究(英文)
發(fā)布時間:2019-05-22 05:26
【摘要】:為了研究復合配筋混凝土柱的動力響應性能特征,進行了等初始剛度的普通鋼筋混凝土(RC)柱、鋼-連續(xù)纖維(FRP)復合筋(SFCB)混凝土柱和混雜配筋混凝土柱(鋼筋/FRP筋,C-H)振動臺試驗.研究結(jié)果表明,不同配筋混凝土柱的加速度峰值響應差別不大;RC柱在柱臺輸入波峰值加速度達到100 cm/s~2之后,塑性鉸區(qū)鋼筋塑性應變快速發(fā)展,且有較大震后殘余應變;SFCB柱在縱筋峰值應變達到0.015時,相應殘余應變依然在5×10-4以下;C-H柱具有和SFCB柱類似的殘余應變較小的優(yōu)勢.總體而言,在普通環(huán)境下混雜配筋柱可以實現(xiàn)較小的震后殘余應變,而SFCB混凝土柱具有較高的震后可修復性(較小殘余位移)的同時,可以在海洋等惡劣環(huán)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,
本文編號: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,
本文編號:2482716
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