Effectiveness of friction pendulum system on the seismic behavior of high-rise building with shear wall

Building damage during an earthquake can be avoided or minimized by using a technique called base isolation. According to the present design methodology, flexible supports which are also known as isolators are positioned beneath each of the structure’s supporting points, which are typically found between the foundation and the main structure. The friction pendulum system (FPS) is a sort of base isolation system making use of a pendulum’s features to extend the isolated structure’s natural period and shield it from the highest earthquake effects. In this type of bearing, the superstructure is separated from the base utilizing concave surfaces and bearings that were specifically engineered to let sway during its own natural time during seismic events. In high-rise buildings, shear walls are the most popular lateral load-resisting technique. They feature great plane stiffness and strength, allowing them to withstand huge horizontal loads while supporting gravity loads at the same time. For a high-rise building, the seismic reaction of the friction pendulum system is compared to the response of the traditional method (shear wall system) and conventional building. To achieve this goal, SAP 2000 v16.0.0 is used to perform a non-linear time history analysis using the four near-fault earthquake records for a G+20-storey reinforced concrete high-rise building in forward directivity and fling step. Parameters used for the comparison are peak top floor displacement and peak top floor absolute acceleration. A significant reduction in displacement and acceleration values can be seen for the third model which includes shear wall and FPS. © 2023, The Author(s), under exclusive licence to Springer Nature Switzerland AG.