Linear Dynamic Analysis and Seismic Response Evaluation of High Rise Structures with Shear Walls Base Isolation and Composite Framing Systems

An earthquake is a naturally occurring movement of the ground that results in a disaster and damages structures. Waves are produced by seismic activity in the earth's crust. Through the foundation, these waves reach the structures. Therefore, inertia force is triggered in the structure as a result of the seismic movements, which damages the entire building or just a portion of it. The most recent advancement in seismic-resistant architecture is base isolation, which lessens the impact of ground movement even though it may not completely control it. By extending the time that a structure vibrates, base isolation helps to reduce earthquake forces. Additionally, because of base isolation, the structural response accelerations are lower than the ground acceleration. In addition to the foundation isolation, earthquake-resistant buildings also incorporate shear walls. In addition to slabs, beams, and columns, reinforced concrete (RC) buildings frequently have shear walls, which are vertical plate-like RC walls. These walls are often continuous throughout the height of the building, beginning at the foundation. It lessens the impact of earthquakes and their aftereffects. However, several nations have long recognized the superior earthquake-resistant performance of composite beams and columns. Because of its lower seismic weight, the steel and concrete composite structure is growing in popularity. The linear dynamic analysis of an RCC structure with an energy dissipation device in zone IV is examined in this paper, along with a comparison to a composite structure. Because linear dynamic analysis calculates the structure's response to ground motion in the time domain, all phase information is preserved. Three distinct models were subjected to response spectrum analysis using CSI ETABS v21; multiple values for each model were determined from the structure. The building is situated in seismic zone IV. The response of the building is analyzed using three models. For a G+25 RC frame structure with a shear wall, the outcomes of frequency, time period, displacement, drift, story overturning moment, and story stiffness are compared.