Effects of confinement level, cross-section shape and corner radius on the cyclic behavior of CFRCM confined concrete columns
Effects of confinement level, cross-section shape and corner radius on the cyclic behavior of CFRCM confined concrete columns
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DOI：
10.1016/j.conbuildmat.2014.01.035
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发表时间：
2014-03
影响因子：
7.4
通讯作者：
P. Colajanni;M. Fossetti;G. Macaluso
中科院分区：
文献类型：
--
作者：
P. Colajanni;M. Fossetti;G. Macaluso
介绍了碳纤维增强水泥基复合材料(CFRCM)包裹的中低强混凝土柱在单调和反复轴压荷载作用下的主要试验研究结果。进行了30根圆形、方形和矩形截面混凝土柱在单调和反复荷载作用下的试验，研究了约束水平、截面形状和拐角半径对反复荷载作用下CFRCM约束混凝土柱的刚度、强度和延性的影响。结果表明，CFRCM护套在抗压强度、变形能力和吸收能量方面都有很大的提高。
The main results of an experimental research aiming to investigate the behavior of medium-size low-strength concrete columns wrapped with Carbon Fiber Reinforced Cementitious Matrix (CFRCM) under monotonic and cyclic compressive axial loads are presented. Thirty columns with circular, square and rectangular cross-sections were tested under monotonic and cyclic axial loads to investigate the effect of the confinement level, the cross-section shape and the corner radius on the stiffness, strength, and ductility of CFRCM confined concrete columns under cyclic loads. The results prove that CFRCM confining jackets provide substantial gain in compressive strength, deformability and absorbed energy.