Structural Performance Evaluation Of A Five-Storey RCC Hostel Building Under Gravity And Seismic Loads

14 Jul

Authors: Ahmed Raza, Zaheer Ahmed, Sarfaraz Malik, Hasnain Ahmed, Muhammad Azib

Abstract: The rapid growth in university enrollment has increased the demand for safe and economical student accommodation, particularly in seismically active regions. This study presents the structural modeling, analysis, and design of a five-storey reinforced concrete (RCC) hostel building located in Rahim Yar Khan, Pakistan, using ETABS software. The structure was designed in accordance with ASCE 7-16 for loading and ACI 318-14 for reinforced concrete design. Gravity loads (dead, super dead, and live loads) and lateral loads (seismic loads in X and Y directions) were applied to evaluate structural performance. Results show that the maximum story displacement occurred at the roof level with a value of 0.3299 inches, which is within permissible limits. The maximum story drift was recorded at Story 4 with a value of 0.000553, significantly lower than the allowable drift limit of 0.020 prescribed by ASCE 7-16. The highest story stiffness of 3818.72 kip/in was observed at the first storey, decreasing gradually towards the top. Base reaction results indicated a seismic base shear of -96.119 kip in the X-direction and overturning moments of – 4172.55 kip-ft and 3649.15 kip-ft about the Y and Z axes, respectively. These results confirm that the proposed RCC structural system satisfies strength, stiffness, and serviceability requirements, making it suitable for long-term student accommodation.

DOI: http://doi.org/10.5281/zenodo.21358437