Different Types of Staircase Effected in A Structure Subjected to Seismic Force

Abstract

Generally, staircases are crucial part in buildings, serving an essential function within the secondary system of the structure. They ensure safe and efficient vertical movement, contributing significantly to the overall accessibility of the building.  Staircase, when compared to the modern escalators, offer significant advantages, particularly in emergency situations like fires or natural disasters. They serve as reliable escape routes and contribute to the building’s structural stiffness, enhancing overall safety and resilience. Due to the complex modelling, staircases are designed separately for non-seismic and seismic forces. It is clear that the staircases effect analysis and design of reinforced concrete frame buildings. Its structural contribution and impact on overall stability and safety cannot be ignored. The Linear Response Spectrum analysis of the models has been carried out as per IS: 1893 (Part 1) - 2002 and IS: 456 – 2000 with the help of Tabs 18 software.