Analysis of Multistory Steel Framed Structure with Different Infills Subjected to Seismic Loading

Earthquake is a natural phenomenon that occurs below the ground surface at some depth which causes vibration at the ground surface (Pradeep et al. in Analysis of infilled steel frames subjected to lateral loading, 2022 [1]). Earthquake zones are divided into four zones zone-II, zone-III, zone-IV, and zone-V. Structures which are located in zone-II will be least affected by earthquake since the magnitude of earthquake in zone-II will be less compared to other zones, and the structures located in zone-V will be affected more since the magnitude of earthquake in zone-V will be more compared to other zones. Hence, the structures which are designed without considering the seismic loading conditions may suffer damages or collapse due to earthquake (Binu et al. in Int J Eng Res Technol (IJERT), 2022 [5]). Steel structures have been widely used nowadays due to some of its advantages over the RCC structures (Pradeep et al. in Analysis of infilled steel frames subjected to lateral loading, 2022 [1]). The infill walls have been used in the structures in order to minimize the effects of earthquake (Sanjay et al. in Int Res J Eng Technol 9, 2022 [4]). In the present study, an attempt is made to determine and compare the base shear and story displacement of steel bare framed model, steel framed model with burnt brick masonry infill, and steel framed model with concrete block masonry infill for a multistoried commercial complex by using linear static analysis (equivalent static analysis) and linear dynamic analysis (response spectrum analysis) methods in E-tabs software. The results show that the base shear is more for steel framed model with infill compared to steel bare framed model, and the story displacement is more for steel bare framed model compared to steel framed model with infill. The present study gives the seismic performance of steel structure with and without infill subjected to seismic loading which helps to assess the damage caused due to earthquake.