Mechanical performance of novel steel one-sided bolted joints in shear

Chuqi Wan, Yu Bai, Chenting Ding, Lei Zhu, Lu Yang

Research output: Contribution to journalArticleResearchpeer-review

Abstract

This paper introduces an innovative one-sided bolt with ellipse head and examines its mechanical performance based on experimental and numerical studies of double lapped joint configuration. The design of one-sided bolt mechanism and geometry was completed through detailed Finite Element (FE) analysis considering contact behaviours and bolt pre-tensioning. Four bolt head geometries were assessed and comparatively studied in terms of yielding capacity, slip distance and stress concentration; and two bolt diameters and two installation configurations were introduced for each bolt head geometry. Experiments were then conducted based on the specimens manufactured with the optimised geometry for validation of the design and installation considerations, with comparison to ordinary bolts. It was found that the optimal aspect ratio of the ellipse bolt head is about 1.7 and orthotropic installation configuration was recommended. Such innovative one-sided bolts with simple manufacturing and installation sequence exhibit comparable shear performance with ordinary bolts, enabling the use of closed sections for construction with easy assembly and disassembly.

Original languageEnglish
Article number105815
Number of pages13
JournalJournal of Constructional Steel Research
Volume165
DOIs
Publication statusPublished - Feb 2020

Keywords

  • Closed section member
  • Double lapped joint
  • Hollow section members
  • One-sided bolt
  • Shear performance

Cite this

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title = "Mechanical performance of novel steel one-sided bolted joints in shear",
abstract = "This paper introduces an innovative one-sided bolt with ellipse head and examines its mechanical performance based on experimental and numerical studies of double lapped joint configuration. The design of one-sided bolt mechanism and geometry was completed through detailed Finite Element (FE) analysis considering contact behaviours and bolt pre-tensioning. Four bolt head geometries were assessed and comparatively studied in terms of yielding capacity, slip distance and stress concentration; and two bolt diameters and two installation configurations were introduced for each bolt head geometry. Experiments were then conducted based on the specimens manufactured with the optimised geometry for validation of the design and installation considerations, with comparison to ordinary bolts. It was found that the optimal aspect ratio of the ellipse bolt head is about 1.7 and orthotropic installation configuration was recommended. Such innovative one-sided bolts with simple manufacturing and installation sequence exhibit comparable shear performance with ordinary bolts, enabling the use of closed sections for construction with easy assembly and disassembly.",
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Mechanical performance of novel steel one-sided bolted joints in shear. / Wan, Chuqi; Bai, Yu; Ding, Chenting; Zhu, Lei; Yang, Lu.

In: Journal of Constructional Steel Research, Vol. 165, 105815, 02.2020.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Mechanical performance of novel steel one-sided bolted joints in shear

AU - Wan, Chuqi

AU - Bai, Yu

AU - Ding, Chenting

AU - Zhu, Lei

AU - Yang, Lu

PY - 2020/2

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N2 - This paper introduces an innovative one-sided bolt with ellipse head and examines its mechanical performance based on experimental and numerical studies of double lapped joint configuration. The design of one-sided bolt mechanism and geometry was completed through detailed Finite Element (FE) analysis considering contact behaviours and bolt pre-tensioning. Four bolt head geometries were assessed and comparatively studied in terms of yielding capacity, slip distance and stress concentration; and two bolt diameters and two installation configurations were introduced for each bolt head geometry. Experiments were then conducted based on the specimens manufactured with the optimised geometry for validation of the design and installation considerations, with comparison to ordinary bolts. It was found that the optimal aspect ratio of the ellipse bolt head is about 1.7 and orthotropic installation configuration was recommended. Such innovative one-sided bolts with simple manufacturing and installation sequence exhibit comparable shear performance with ordinary bolts, enabling the use of closed sections for construction with easy assembly and disassembly.

AB - This paper introduces an innovative one-sided bolt with ellipse head and examines its mechanical performance based on experimental and numerical studies of double lapped joint configuration. The design of one-sided bolt mechanism and geometry was completed through detailed Finite Element (FE) analysis considering contact behaviours and bolt pre-tensioning. Four bolt head geometries were assessed and comparatively studied in terms of yielding capacity, slip distance and stress concentration; and two bolt diameters and two installation configurations were introduced for each bolt head geometry. Experiments were then conducted based on the specimens manufactured with the optimised geometry for validation of the design and installation considerations, with comparison to ordinary bolts. It was found that the optimal aspect ratio of the ellipse bolt head is about 1.7 and orthotropic installation configuration was recommended. Such innovative one-sided bolts with simple manufacturing and installation sequence exhibit comparable shear performance with ordinary bolts, enabling the use of closed sections for construction with easy assembly and disassembly.

KW - Closed section member

KW - Double lapped joint

KW - Hollow section members

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KW - Shear performance

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