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Parametric Study on the Behavior of All-Bolted Single-Angle Connections in Fire

Chhetri, Jyotindra
http://orcid.org/0000-0001-8860-9010
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1659532991158234

Abstract Details

2022, MS, University of Cincinnati, Engineering and Applied Science: Civil Engineering.
All-bolted single-angle connections are simple (shear) connections commonly used in steel structures; however, there is limited guidance on appropriately designing single-angle connections for fire safety in steel structures. In the context of fire, the strength of single-angle connections and their deformation capacity has not been extensively researched and understood. To address these gaps in knowledge, a finite element model was generated and a parametric study performed to evaluate all-bolted single-angle connection behavior under fire. A finite element model was first developed and compared to experimental data at both ambient and elevated temperatures. Due to a lack of detailed single-angle experimental results, the benchmarked model was a double-angle connection. A single-angle connection was then created using similar methods and procedures. Finally, a comprehensive investigation was conducted to examine the various factors that may influence the fire behavior of single-angle connection assemblies. These include: single-angle location, edge distance, gap distance, and load ratio. The base model used for single-angle connections was based on standard building construction practices in the United States. According to the findings of this study, the gap distance and single-angle location concerning the beam neutral axis are the primary factors influencing the behavior of single-angle connections at ambient temperatures. In the case of fire, the principal causes influencing the behavior of single-angle connections are gap distance, edge distance, and load ratio. The controlling modes of failure are bolt to the beam fracture, bolt to the column fracture, tear-out of beam web, and angle.
Rachel Chicchi, Ph.D. (Committee Member)
Gian Andrea Rassati, Ph.D. (Committee Member)
Alireza Asgari Hadad, Ph.D. (Committee Member)
121 p.
Civil Engineering
All-bolted single-angle connections; shear; single-angle location; edge distance; gap distance; load ratio

Recommended Citations

Citations

  • Chhetri, J. (2022). Parametric Study on the Behavior of All-Bolted Single-Angle Connections in Fire [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1659532991158234

    APA Style (7th edition)

  • Chhetri, Jyotindra. Parametric Study on the Behavior of All-Bolted Single-Angle Connections in Fire. 2022. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1659532991158234.

    MLA Style (8th edition)

  • Chhetri, Jyotindra. "Parametric Study on the Behavior of All-Bolted Single-Angle Connections in Fire." Master's thesis, University of Cincinnati, 2022. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1659532991158234

    Chicago Manual of Style (17th edition)

ucin1659532991158234
139
© 2022, some rights reserved.Creative Commons License Parametric Study on the Behavior of All-Bolted Single-Angle Connections in Fire by Jyotindra Chhetri is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by University of Cincinnati and OhioLINK.