Experimental and analytical study of circular splice connection under lateral loads / Ibrahim Mohamed Ibrahim Mustafa ; Supervised Sherif Ahmed Mourad , Maha Moddather Hassan

Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Civil Engineering

Circular hollow steel sections (CHS) are widely used as structural supports for highway signs, luminaires, and traffic signals. A circular splice connection is typically used to connect different parts of the section. In this research, a series of the experimental tests were performed to investigate the effect of lateral loads on a circular splice connection of CHS section considering different connection configurations under the effect of lateral loads. Each sample consisted of two circular hollow sections connected together by a splice connection. Each sample was fixed at its base and free at the other end at which it was subjected to lateral concentrated load. The considered connection configurations include common splice connection, added strengthening plain concrete and internal welded ring stiffeners. In addition, finite element models using "Abaqus/CAE-2016" were created and verified against experimental results. Results of the study involve numerical and graphical comparison between different connection configurations while focusing on the load {u2013} displacement curves and the load {u2013} strain curves

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