Multi-Bolted Connection for Pultruded Glass Fiber Reinforced Polymer’s Structure: A Study on Strengthening by Multiaxial Glass Fiber Sheets

Pultruded Glass Fiber Reinforced Polymers (PGFRPs) are becoming a new mainstream in civil construction because of their advantageous properties. One of two main elements, glass fibers, have been constructed by unidirectional glass roving in applicate progress. PGFRPs do not have high shear strength,...

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Main Authors: Quang Duc Tran, Phan Viet Nhut, Yukihiro Matsumoto
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:Polymers
Subjects:
Online Access:https://www.mdpi.com/2073-4360/14/8/1561
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author Quang Duc Tran
Phan Viet Nhut
Yukihiro Matsumoto
author_facet Quang Duc Tran
Phan Viet Nhut
Yukihiro Matsumoto
author_sort Quang Duc Tran
collection DOAJ
description Pultruded Glass Fiber Reinforced Polymers (PGFRPs) are becoming a new mainstream in civil construction because of their advantageous properties. One of two main elements, glass fibers, have been constructed by unidirectional glass roving in applicate progress. PGFRPs do not have high shear strength, which is determined by another element is the matrix. In the future, the demand for enhanced serviceability of existing PGFRP structures could be seen as unavoidable. Therefore, multi-bolted connection being the most typical type of connecting member, strengthening the connection performance of PGFRPs through connection is necessary. Previous researchers have studied several methods for improving connection capacity, including pasting glass fiber sheets (GFS). However, experimental research is lacking for multi-bolted connection. This study investigated several strategies of specimens, including the quantity of bolts (two bolts, four bolts, and five bolts); the end distance/diameter ratio (<i>e</i> = <i>2d</i>; <i>e</i> = <i>3d</i>) under tensile load; and three types of glass fiber sheets (GFS) (0°/90°, ±45° and chopped strand mat (CSM)). The experiment’s results showed the strengthening effects and the failure mode on the specimens. These findings could address the gap in knowledge that needs to be resolved with respect to PGFRPs’ composite design, through evaluation and discussion of their behavior.
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spelling doaj.art-32e10eb7465a4193b5a35f66c3b978712023-12-01T21:20:11ZengMDPI AGPolymers2073-43602022-04-01148156110.3390/polym14081561Multi-Bolted Connection for Pultruded Glass Fiber Reinforced Polymer’s Structure: A Study on Strengthening by Multiaxial Glass Fiber SheetsQuang Duc Tran0Phan Viet Nhut1Yukihiro Matsumoto2Department of Architecture and Civil Engineering, Toyohashi University of Technology, Toyohashi 441-8580, Aichi, JapanDepartment of Architecture and Civil Engineering, Toyohashi University of Technology, Toyohashi 441-8580, Aichi, JapanDepartment of Architecture and Civil Engineering, Toyohashi University of Technology, Toyohashi 441-8580, Aichi, JapanPultruded Glass Fiber Reinforced Polymers (PGFRPs) are becoming a new mainstream in civil construction because of their advantageous properties. One of two main elements, glass fibers, have been constructed by unidirectional glass roving in applicate progress. PGFRPs do not have high shear strength, which is determined by another element is the matrix. In the future, the demand for enhanced serviceability of existing PGFRP structures could be seen as unavoidable. Therefore, multi-bolted connection being the most typical type of connecting member, strengthening the connection performance of PGFRPs through connection is necessary. Previous researchers have studied several methods for improving connection capacity, including pasting glass fiber sheets (GFS). However, experimental research is lacking for multi-bolted connection. This study investigated several strategies of specimens, including the quantity of bolts (two bolts, four bolts, and five bolts); the end distance/diameter ratio (<i>e</i> = <i>2d</i>; <i>e</i> = <i>3d</i>) under tensile load; and three types of glass fiber sheets (GFS) (0°/90°, ±45° and chopped strand mat (CSM)). The experiment’s results showed the strengthening effects and the failure mode on the specimens. These findings could address the gap in knowledge that needs to be resolved with respect to PGFRPs’ composite design, through evaluation and discussion of their behavior.https://www.mdpi.com/2073-4360/14/8/1561pultruded GFRPglass fiber sheetsfailure modesstrengtheningmulti-bolted connection
spellingShingle Quang Duc Tran
Phan Viet Nhut
Yukihiro Matsumoto
Multi-Bolted Connection for Pultruded Glass Fiber Reinforced Polymer’s Structure: A Study on Strengthening by Multiaxial Glass Fiber Sheets
Polymers
pultruded GFRP
glass fiber sheets
failure modes
strengthening
multi-bolted connection
title Multi-Bolted Connection for Pultruded Glass Fiber Reinforced Polymer’s Structure: A Study on Strengthening by Multiaxial Glass Fiber Sheets
title_full Multi-Bolted Connection for Pultruded Glass Fiber Reinforced Polymer’s Structure: A Study on Strengthening by Multiaxial Glass Fiber Sheets
title_fullStr Multi-Bolted Connection for Pultruded Glass Fiber Reinforced Polymer’s Structure: A Study on Strengthening by Multiaxial Glass Fiber Sheets
title_full_unstemmed Multi-Bolted Connection for Pultruded Glass Fiber Reinforced Polymer’s Structure: A Study on Strengthening by Multiaxial Glass Fiber Sheets
title_short Multi-Bolted Connection for Pultruded Glass Fiber Reinforced Polymer’s Structure: A Study on Strengthening by Multiaxial Glass Fiber Sheets
title_sort multi bolted connection for pultruded glass fiber reinforced polymer s structure a study on strengthening by multiaxial glass fiber sheets
topic pultruded GFRP
glass fiber sheets
failure modes
strengthening
multi-bolted connection
url https://www.mdpi.com/2073-4360/14/8/1561
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AT phanvietnhut multiboltedconnectionforpultrudedglassfiberreinforcedpolymersstructureastudyonstrengtheningbymultiaxialglassfibersheets
AT yukihiromatsumoto multiboltedconnectionforpultrudedglassfiberreinforcedpolymersstructureastudyonstrengtheningbymultiaxialglassfibersheets