Seismic Resilience of Reinforced Concrete Frames: Evaluating the Impact of Bracing Systems and Soil-Structure Interaction
摘要
Dynamic loading is capable of exerting huge amount of energy on the structure especially those applied laterally such as the base shear due to earthquake ground motion. The energy exerted by the dynamic load has to be properly dissipated, so that the excessive lateral movement of the structure can be minimized and avoid structural failure. One of the most efficient methods for lateral movement resistance is structural bracing. This study focuses on investigating the structural performance of a reinforced concrete (RC) frame building, considering the interaction between the structure and the underlying soil, with different bracing system. The research explores the effectiveness of various bracing systems by examining their performance in different locations within the RC frame building. Time history analysis, conducted using the SAP2000 program, is employed to assess the seismic performance of G+5, G+10, and G+20 storey RC frame buildings equipped with different types of bracing systems, such as crossed bracing and V-type bracing. The analysis incorporates the dynamic interaction between the structure and the underlying soil, acknowledging the significance of soil-structure interaction in real-world scenarios. A comparative study is conducted, analyzing storey displacement, storey drift, acceleration history, and displacement history between structures with bracing and those without, at various floor levels. The findings indicate that the cross diagonally braced structure with pattern 2 exhibits superior structural performance among all the structures, considering the intricate interaction between the building and the underlying soil.