ANALYSIS OF THE INFLUENCE OF RIGID CORE AND SEMI-RIGID CONNECTIONS ON THE STRUCTURAL BEHAVIOR OF BUILDINGS WITH PRECAST CONCRETE STRUCTURES
Keywords:
Precast Structure, global stability, semirrigid connections, rigid core.Abstract
This study intends to analyze the influence of rigid core and semi-rigid connections in the global stability of precast structures. In the study, it was considered a structure with and without rigid core, where was varied the value of the rotation restriction factor αR of beam-column and the number of floors of the building. Thus, it"™s was possible to identify the influence of these devices on the in global stability of the structure through the analysis of the values of γZ, horizontal displacement, bending moments at the base of the column, negative and positive bending moments on the beam. It was possible to realize that the higher, the structure the structure will need a greater rotation restriction factor αR of beam-column connections to stay stable. However, the addition of the rigid core to the structure allowed a decrease of the rotation restriction factor αR to ensure the stability of the structure.
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