Seismic performance evaluation of a post-tensioned frame building

Abstract

The precast construction technology is used not only for industrial buildings today, but also used for other building types such as residences, schools etc. On the other hand, the requirement of the seismic safety must be satisfied for such buildings constructed in earthquake regions. Thus, seismic safety evaluation of this type of buildings to estimate the potential damage is a critical issue and must be made as realistic as possible. Realistic damage estimation requires considering the nonlinear behavior of structure. In this study, performance evaluation of a seven story post-tensioned frame building which was in the state of immediate occupancy after the Van Earthquakes (October 23rd and November 9th, 2011), is carried out on the basis of Turkish Seismic Design Codes provisions. The maximum displacement demand of the design earthquake is estimated by using the pushover curves of the structure. The construction stages of the structure have been taken into account as the initial condition of pushover analysis. Finally, damage of all the structural elements has been determined, based on their plastic deformation demands, under the effect of the design earthquake by using the section damage classification of Turkish Seismic Design Code.