Flexural Behavior of Hollow Composite Beams with Different Voids Ratio Under Monotonic Load
Keywords:
Experimental work Flexural behavior Hollow Composite Beams, Shear Connectors Steel Channel Anchors.Abstract
This research aims to study the flexural behavior of hollow composite beams with simple supports, consisting of a concrete slab connected to an I-beam steel beam, held together by shear connectors. The experimental work involved casting eight specimens, divided into four groups based on void ratio used: 9%, 18%, and 27%. Shear connectors in the form of steel studs were used in different numbers. Composite beams were tested under monotonic loading, using two void-free composite beams as reference specimens. The results showed that the use of voids reduced the ultimate load to failure of the beams by 8.4, 19.7, and 34.9%, respectively. The use of 13 pairs of steel nails instead of 6 pairs in the hollow composite beams increased the ultimate load by 2.7%. The failure mode for all specimens was flexural failure.
