Comparison of a 9-story reinforced concrete structure using the equivalent seismic load method according to the TSC 2007 and TSC 2019

Abstract

This study analyzed a 9-story reinforced concrete structure with a floor plan of 35x25 m2 using the Equivalent Seismic Load Method following the TSC 2007 and TSC 2019. Using effective cross-sectional stiffness, it was calculated that spectral acceleration values came out more from the solved building according to the TSC 2019 compared to analyses carried out according to TSC 2007. However, because the structural behavior coefficient was taken to be smaller in TSC 2019 due to the shear wall placement, the equivalent seismic loads were close to each other in both analyses. In the new seismic code, the reduction of the stiffness of the load-bearing elements has led to an increase in the period values, which has led to a more ductile behavior of the building.