Analysis of Torsional Irregularity and Mode Shape of RC Buildings in Sloping Ground with Shear wall and Steel Bracing

Analysis of Torsional Irregularity and Mode Shape of RC Buildings in Sloping Ground with Shear wall and Steel Bracing

Asst. Prof. Nirav Patel1, Kshetra Bohara2

1 Department of Civil Engineering & Parul University, Gujarat, India

2 M.tech. Structural Engineering, Department of Civil Engineering & Parul University, Gujarat, India

The investigation of RC buildings' seismic behaviour in sloping, steep terrain. It has been studied how a structure responds dynamically in steep terrain. Almost thirteen different structural configurations have been taken into consideration. Six of them take into account the slope of the ground and are step-back. Six have a set-back arrangement, much like in a plain. The last one is called plan buildings. The remaining three models are a combination of shear walls and steel bracings, and the three models are conventional step back, setback, and plan buildings. This study examines and presents a number of reviews of the literature on the seismic behaviour of RC buildings in sloping, hilly terrain. The study conclude that shorter column attracts more forces and cause damage when earthquake occurs. Step back configuration could prove more vulnerable to seismic activities. We also concluded that building with shear wall improves seismic behavior of building by increasing strength and stiffness and also reduce in deflection. The study suggested that when designing the stepback and setback buildings it is important to consider the torsional irregularity in the structure.

Keywords: Hilly areaSs, torsional irregularity, set- back configuration,  seismic behavior, shear wall, mode shape