Comparative Study on Static and Fatigue Performances of Pultruded GFRP Joints Using Ordinary and Blind Bolts
Comparative Study on Static and Fatigue Performances of Pultruded GFRP Joints Using Ordinary and Blind Bolts
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DOI：
10.1061/(asce)cc.1943-5614.0000527
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发表时间：
2015-08
影响因子：
4.6
通讯作者：
Chao Wu;P. Feng;Yu Bai
中科院分区：
文献类型：
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作者：
Chao Wu;P. Feng;Yu Bai
摘要在拉挤玻璃纤维增强聚合物（GFRP）结构中，螺栓连接是常用的连接方式。盲螺栓只需要从一侧安装，当通道受限时，用于紧固普通螺栓变得方便，特别是对于管状玻璃钢段。本文介绍了普通螺栓与盲螺栓对拉挤玻璃钢双搭接的对比研究结果。静力试验采用拉挤GFRP双搭接两列螺栓，排数分别为1、2、3列。从荷载-位移响应、破坏模式和破坏荷载等方面比较了普通螺栓连接和盲螺栓连接的静力性能。在此基础上，对双螺栓双搭接节点进行恒幅疲劳试验。最大疲劳载荷为相应接头静破坏载荷的30% ~ 80%。记录了各试样的疲劳寿命，并绘制了S-N曲线。人们发现……
AbstractBolted connections are often used in pultruded glass fiber reinforced polymer (GFRP) structures. Blind bolts, which require installation from one side only, become convenient when access is limited to tighten the ordinary bolts, especially for tubular GFRP sections. This paper presents the results of a comparative study on pultruded GFRP double-lap joints using ordinary bolts and blind bolts. Static experiments were conducted on pultruded GFRP double-lap joints with two columns of bolts, whereas the number of rows varied by one, two, and three. The static behaviors of ordinary bolted and blind bolted joints were compared in terms of load-displacement response, failure modes, and failure load. Then, constant amplitude fatigue tests were carried out on the double-lap joints with two bolts in a row. The maximum fatigue load varied from 30 to 80% of the static failure load of the corresponding joint. The fatigue life of each specimen was recorded and S-N curve was obtained. It was found that the stati...