Comparison of Hazus Building Capacity Curves and Pushover Analysis Curves for Concrete Moment Frame Type Structures Built in Turkey According to Various Seismic Design Levels

In Turkey, with seismic risk mitigation programs, structural strengthening and reconstruction of existing building-type structures have been brought into consideration, the need to scan and prioritize structures in facilities, districts or cities has arisen. In order to prioritize the structures in the region of interest, to prepare a disaster plan and to estimate the economic impacts of a possible earthquake; examining building plans, developing three-dimensional mathematical modeling and performing non-linear push-over analysis are required. As the amount of work involved, the demand for technical personnel and the cost of application are excessive for conducting screening studies, new statistical methods have been introduced throughout the world. In the United States, with the goal of estimating the economic impacts of the big California earthquake, studies in this field accelerated with ATC-13 in 1985 and advanced further with Hazus methodology by 1997. In this study, statistical building capacity curves of the Hazus-MH4.2 (2020) methodology, were used and the nonlinear building capacity curve parameters of concrete moment-frame type structures built according to different design levels, the most common building types in Turkey, were calculated with Hazus methodology. In addition, 3D mathematical models of these structures were created and nonlinear pushover analyzes were performed. Building capacity curve parameters calculated from the nonlinear push-over analysis and Hazus methodology were then compared and interpreted. Lastly, in light of the results obtained, whether the current Hazes methodology is fit for concrete moment frame type structures built according to Pre-Code, Low-Code, Moderate-Code, and High-Code in Turkey was discussed.