THE IMPACT OF THE SEISMIC AREA ON THE BRACING TYPE CHOICE OF REINFORCED CONCRETE BUILDINGS

Abstract

Bracing systems are used to improve the seismic resilience of structures, particularly concrete buildings. Each bracing system showed a distinct seismic response. Generally, seismic regulations do not go into great depth on the sort of bracing that should be considered on the basis of both the height of the structures and the seismic activity of a specific location. To find the safest and most effective bracing mode for a structure while considering the seismic area in which it will be built, we studied the stability of structures at different heights using various techniques of bracing. To achieve this, we developed 396 models with various bracing types (columns, shear walls, and mixed), heights (3-6-9, and 12-storey), then analyzed the data of multiple seismic areas, staticaly and dynamicaly, using the ETABS program. The model's global displacement and structural mass are then evaluated and compared. A 3D design of the structures was performed using BIM techniques to quantify all materials used in the construction (Building Information Modeling). Following model validation and result analysis, we concluded that shear wall bracing performs best in structures taller than 21 m, whereas column bracing is advised for buildings no taller than 6 storeys. This article simplifies the selection process and serves as a guide for designers. Architects and engineers must continually conduct extensive studies to determine the appropriate type of bracing. The outcomes of this study can be used to strengthen regulations, which is another finding.