Tests on cyclic performance of FRP-concrete-steel double-skin tubular columns
Tests on cyclic performance of FRP-concrete-steel double-skin tubular columns
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DOI：
10.1016/j.tws.2010.01.007
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发表时间：
2010-06-01
影响因子：
6.4
通讯作者：
Xu, Yi
中科院分区：
文献类型：
--
作者：
Han, Lin-Hai;Tao, Zhong;Xu, Yi
进行了8根FRP-混凝土-钢双壁钢管柱在恒定轴力和反复递增弯矩作用下的试验。试验中的主要参数是轴压水平和纤维增强聚合物(FRP)层数。研究了这些参数对强度、延性、刚度和耗能的影响。研究发现，一般情况下，在纵向FRP断裂前，FRP-混凝土-钢双壁钢管柱具有较高的耗能能力，但在纵向断裂后，其横向承载能力急剧下降。在目前的试验中，由于轴压荷载的存在，试件的延性得到一定程度的改善。(C)2010爱思唯尔有限公司。保留所有权利。
Eight FRP-concrete-steel double-skin tubular columns were tested under constant axial load and cyclically increasing flexural loading. The main parameters in the tests are axial load level and number of fibre reinforced polymer (FRP) layers. The influence of those parameters on the strength, ductility, stiffness, and energy dissipation was investigated. It was found that, in general, FRP-concrete-steel double-skin tubular columns exhibit high levels of energy dissipation prior to the rupture of the longitudinal FRP, but experience a sudden drop in the lateral load capacity after that. The ductility of the specimens can be improved to some extent due to the existence of the axial compressive load in current tests. (C) 2010 Elsevier Ltd. All rights reserved.