Axial Compressive Behavior of Circular High-Strength Concrete-Filled FRP Tubes
Axial Compressive Behavior of Circular High-Strength Concrete-Filled FRP Tubes
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DOI：
10.1061/(asce)cc.1943-5614.0000410
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发表时间：
2014-04
影响因子：
4.6
通讯作者：
T. Ozbakkaloglu;T. Vincent
中科院分区：
文献类型：
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作者：
T. Ozbakkaloglu;T. Vincent
摘要在过去的二十年里，混凝土填充纤维增强聚合物(FRP)管受到了广泛的关注。然而，对高强混凝土(HSC)填充CFFTs性能的试验研究仍然非常有限。本文介绍了83根单调加载圆形钢管混凝土轴心受压性能的试验研究结果。研究了纤维类型、混凝土强度、试件尺寸和制作方法对CFFTs抗压性能的影响。CFFT由碳纤维(CFRP)、高模CFRP(HMCFRP)或芳纶FRP(AFRP)管制成，其平均无约束混凝土强度在34-110 Mpa之间。试验标本的直径从75-300 mm不等，所有标本的高径比都保持在2：1。通过自动纤维缠绕和手动湿法缠绕技术制备的AFRP试件，研究了CFFT制作方法的效果。
AbstractConcrete-filled fiber-reinforced polymer (FRP) tubes (CFFTs) have received significant research attention over the last two decades. However, experimental studies on the behavior of CFFTs filled with high-strength concrete (HSC) remain very limited. This paper presents the results of an experimental study on the axial compressive behavior of 83 monotonically-loaded circular CFFTs. The effects of fiber type, concrete strength, specimen size, and manufacturing method on the compressive behavior of CFFTs were investigated. The CFFTs were manufactured with carbon FRP (CFRP), high-modulus CFRP (HMCFRP), or aramid FRP (AFRP) tubes, and their average unconfined concrete strengths ranged between 34–110 MPa. The diameters of the test specimens ranged from 75–300 mm with all specimens maintaining a 2∶1 height-to-diameter ratio. The effect of the CFFT manufacturing method was investigated through AFRP specimens that were manufactured through either an automated filament winding or manual wet layup technique....