Experimental and Numerical Prediction of Torsional Behavior of Steel Beam with Sinusoidal Web

This study is concerned with the torsional behavior of I-beams with sinusoidal corrugated web. A compact-type numerical and experimental program was planned to observe pure torsion. This type of beam is quite important for the building design and construction. Specifically, the torsional behavior mentioned throughout this paper is a significant aspect to investigate the overall mechanical properties. The torsion load and rotation capability of experimental and finite element models were investigated for the I-sinus-shaped steel beams. The torsion load of elastic torsion compared to plastic torsion is approximately 76.77%, 86.46%, 83.50% and 78.11% for the Ex-Simple, Ex-sinus 30°, Ex-sinus 70° and Ex-IPE160, respectively. The increased rotation of elastic torsion compared to plastic torsion is approximately 45.12%, 40%, 50.55% and 38% for Ex-Simple, Ex-sinus 30°, Ex-sinus 70° and Ex-IPE160, respectively.