Analysis of RCC and PSC Beam: A Comparative Research with Post-Tensioning Performance in Multistory Building under Seismic Zone III

The world is facing urban land shortages prompting engineers to design visually appealing high rise buildings, yet the under use of post tensioning techniques despite their advantages in material efficiency and structural integrity poses challenges in ensuring stability amid increasingly complex architectural demands. In this research work, to conduct an approach to use PSC in multistory buildings and its basic behaviour, a comprehensive review was carried out through various papers related to the PSC and its techniques have thoroughly and critically studied. Gap shows that none of the researchers conducted an analytical study on PSC beam by post tensioning using LRPC strand cables. Accurate simulations are conducted using an analysis software with various cases by considering a commercial building and replacing the PSC beams at different floor levels. These cases are then optimised as per its limiting values (OPSC-BP to OPSC-BR) and compared with general RCC rebars based general structure (RCC-B). To check the performance of commercial building, the output parameters such as deflection of beams, shear forces, bending moments in beam and base shear of the entire structure under seismic load has conducted with its suitable checks to observe the limiting values of the beam resistance are evaluated an compared. Observations in this research shows that for selected G+10 commercial apartment, there has a significant reduction in sizes when using the optimized PSC beam used and cross sectional area has reduced to minimum of 12.89% to maximum of 69.70% for different floor levels as conclusive part of this research work. At last, recommendations show that PSC allows in reduction of members that has directly proportioned with the cost and hence the economy has achieved.