Document

Experimental and numerical study on the behaviour of angle connections under tension.

Source
Master's thesis
Other titles
دراسة تجريبية وعددية حول سلوك الزوايا الفوالذية تحت تأثير قوة الشد
Country
Oman
City
Muscat
Publisher
Sultan Qaboos University
Gregorian
2023
Language
English
Thesis Type
Master's thesis
English abstract
This research aims to investigate the net cross-section capacity of bolted steel angles under tension employing both experimental testing and numerical modeling, specifically focusing on the double bolt rows arrangement, which is not currently addressed in the Eurocode-3. The primary objective is to develop a reliable equation for assessing the load carrying capacity of bolted connections in this configuration. To achieve this objective, a series of experimental tests were conducted on bolted steel angle specimens arranged in a single and double rows configuration. The experimental data provides critical insights into the behavior and strength characteristics of such connections under different bolt configurations. In parallel, a numerical model was developed using a ductile damage material model to simulate the behavior of the bolted steel angles. The numerical model is validated against the experimental results to ensure its accuracy and effectiveness in representing real-world scenarios. The validated numerical model was also used to compare the results against the provisions outlined in the Eurocode and BS5950. Based on the combined findings from the experimental and numerical investigations, a new set of equations are proposed to predict the net cross-section capacity of bolted steel angles in the double bolt rows arrangement. A comparison was made between numerical simulations (computerbased calculations) and experimental results (physical tests). The comparison revealed that the numerical results and experimental results exhibited good agreement. However, when these results were further compared to Eurocode-3 and BS5950, it was discovered that both codes provision underestimated the capacities. The outcomes of this study will significantly contribute to the field of structural engineering, addressing the gap in Eurocode-3 provisions for the double rows of bolt arrangements. Ultimately, this research aims to enhance the understanding of bolted connection behavior and promote safer and more reliable structural designs in the construction industry.
Arabic abstract
Category
Theses and Dissertations