On the Strengthening of Pultruded GFRP Connections Using Glass Fiber Sheets: A Study on the Influence of Bolt Diameter

被引：0
作者：
Phan Viet Nhut
Fengky Satria Yoresta
Yasuo Kitane
Kunitaro Hashimoto
Yukihiro Matsumoto
机构：
[1] Toyohashi University of Technology,Department of Architecture and Civil Engineering
[2] The University of Danang − University of Technology and Education,Department of Civil and Earth Resources Engineering
[3] Bogor Agricultural University,Department of Civil Engineering
[4] Kyoto University,undefined
[5] Kobe University,undefined
来源：
Applied Composite Materials | 2022年 / 29卷
关键词：
GFRP; Failure modes; Bolted connection; Strengthening; Ultimate loads; Glass fiber sheets;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
This paper presents a summary of an experimental study aimed at evaluating the effects of glass fiber sheets (GFSs) on the strengthening of pultruded glass fiber reinforced polymer (PGFRP) connections with different bolt diameters under tensile loads. Three types of GFSs (± 45°, 0°/90°, and chopped strand mat (CSM)) were used for the investigation. Three types of bolt diameters were used: 12 mm, 16 mm, and 20 mm. The experimental results indicated that the GFSs remarkably improved the ultimate loads of the PGFRP connections. The strengthening effects were higher for the large-diameter bolts when the same modes of failure were observed for the specimens with the same parameters. Moreover, the CSM GFSs brought better effects on the strengthening of the connections than the ± 45° GFSs and 0°/90° GFSs. A numerical analysis was also used to effectively forecast the ultimate loads of the PGFRP connections. Finally, equations were suggested to calculate the ultimate loads of the PGFRP connections with different failure modes under tensile loads.
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页码：651 / 681
页数：30
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