Numerical analysis of composite steel-concrete beams in ambient temperature and in fire situation

Abstract

This paper presents three-dimensional numerical models of steel-concrete composite beams with full interaction (no slip between concrete slab and steel beam) using a non-linear procedure. The threedimensional numerical models must be capable of predicting the response of composite beam at ambient temperature and in fire situation with accuracy. The computer program ABAQUS ® 6.3-1, based on Finite Element Method, was used to analyze the numerical modeling. The accuracy of the models is demonstrated through the results obtained, which are compared with the experimental results presented in other works. The reported results, when compared to experimental data, demonstrate that the numerical models elaborated with shell finite elements show better performance when compared to the results of the numerical models elaborated with solid finite elements.

Keywords

• Structures
• Composite Beams
• Fire Situation
• Numerical Analysis