The stability and lateral resistance of the Steel Plate Shear Wall (SPSW) is commonly used in earthquakes prone areas due to its high flexibility and energy absorption capacity in tall steel structures. Fire can significantly reduce the lateral resistance and stability of such structures. The purpose of this paper is to investigate the performance of Perforated Steel Plate Shear Wall (PSPSW) in the face of high temperatures. Therefore, 9 steel frames, each including one floor and one span, containing perforated steel plates, were numerically modelled and their behavioural characteristics were examined at high temperatures. Numerical results show that all seismic factors such as strength, stiffness and ductility in the lateral resistance and stability of Perforated Steel Plate Shear Wall (PSPSW) are reduced against high temperatures. Also, at high temperatures, it was found that before lateral loading, permanent plastic areas are formed, especially around the perforations, which increases the sensitivity of the system to the small earthquakes.
