Effective Location of Shear Walls in High-Rise RCC Buildings Subjected to Lateral Loads

Abstract

Lateral loads such as earthquake and wind loads play a governing role in the design of high-rise buildings. Consequently, providing adequate lateral rigidity against such loads in high-rise buildings is a major concern for structural engineers. A shear wall is one of the vertical elements which are used in buildings to fulfil lateral rigidity requirements. But its location and arrangement should be proper to effectively resist lateral loads, so this study aims to find out the response of high-rise buildings with shear walls subjected to lateral loads.In the present study, various high-rise rectangular building models with and without shear walls have been analysed for seismic and wind loads in finite element based ETABS software. Seismic loads have been calculated according to the equivalent static method given in IS Code 1893 (Part-1): 2016 and wind loads have been calculated according to IS Code 875 (Part-3): 2015. Results of storey displacements and storey drifts have been extracted, considering four load combinations according to the Indian Standard Code.It has been found that shear walls situated at the centre in the form of a core perform effectively against lateral loads. Displacement at the top of such a building is approximately 2.5 times less than the top story displacement of a building without a shear wall. Shear walls located at corners are the least effective.The study focused only on symmetrical building shapes, and lateral loads were calculated using the equivalent static method.The high-rise building includes both framed systems and shear walls. The shear walls are distributed in such a way that the floor plan length of walls is the same in all the buildings, so results are affected by the arrangement and location of walls only.

Study of Torsional and Stiffness Properties of the RC Buildings with Shear wall and Steel Bracing with Lateral Loadings

“…Displacement at the top of such a building is approximately 2.5 times less than the top story displacement of a building without a shear wall. Shear walls located at corners are the least effective [20].…”

The influence of the layout of shear walls on internal forces and horizontal displacements in an 18-story building

“…Rigid walls are a type of vertical component commonly employed in building structures to meet the required horizontal stiffness requirements. The objective of the investigation [3] was to investigate the behavior of HRBs with rigid load-bearing walls in terms of their location and arrangement to provide effective resistance to lateral loads. Specifically, the study focused on understanding the response of these buildings to horizontal weight.…”

Horizontal displacement at the top of the building with frame and shear walls structures according to TCVN 2737:2023

“…However, to effectively resist horizontal loads, the location and layout must be suitable. This study analyzed various models of high-rise rectangular buildings with and without shear walls using earthquake and wind loads in ETABS software, which is based on finite element analysis (Kashyap and Nallasivam, 2022;Kontoni and Farghaly, 2023).SMPSSs from wind tunnel experiments and random vibration theory were utilized to analyze the effect of high modes on the wind-induced response in three typical super high-rise designs. These findings follow.…”

“…However, to effectively resist horizontal loads, the location and layout must be suitable. This study analyzed various models of high-rise rectangular buildings with and without shear walls using earthquake and wind loads in ETABS software, which is based on finite element analysis (Kashyap and Nallasivam, 2022;Kontoni and Farghaly, 2023).…”