Dynamic Response of High-Rise Buildings with Shear walls due to Seismic forces

Abstract

Abstract Lateral loads such as earthquake and wind loads play a governing role in the design of high-rise buildings. Consequently, the vital work in the lives of structural engineers is to minimise damage to the structure and its structural components during an earthquake by proper design. A shear wall is one of the vertical elements that fulfils the above function by providing enough lateral rigidity if it is located and arranged effectively. As a result, the purpose of the study is to determine the response of various high-rise buildings with different shear wall arrangements when subjected to seismic loads. A total of nine G + 30-storey models have been made using finite element-based ETABS Software. All the models have shear walls distributed in such a way that the floor plan length of the walls is the same in all buildings, so the results are influenced solely by the arrangement and location of the walls. Seismic loads were applied using the response spectrum method, which complied with Indian codal provisions. The results of storey displacements, storey drifts, and story shear were extracted. The shear walls arranged in the form of a core at the centre of the building have been the most effective. It shows a 1.8 times greater decrement in top-storey displacement compared to the model without shear walls. The building with an irregular arrangement of shear walls at the corner is the least effective in resisting earthquakes.