Comparison of fragility curve of existing prefabricated industrial structures according to TBDY-2018, EC8-3 and ASCE 41-17 seismic codes

The vast majority of industrial facilities in Turkey consist of single-storey prefabricated buildings. In our country, which is located on one of important seismic belts, the industrial structures that constitute cornerstone of the economy are located in the regions with high earthquake risk. This situation shows that seismic performance of these industrial buildings should be investigated. When seismic codes used in different countries are examined, in addition to the building design, the issue of determining seismic performance of existing buildings is also discussed. Considering the issues in the earthquake codes used in other countries, it's seen that there are different approaches from each other. It's obvious that this situation will cause differences between performance estimates of the buildings. Therefore, it's extremely important to compare performance evaluations of the regulations used in different countries. Within the scope of the study, 46 one-storey prefabricated industrial buildings in DOSB were discussed. The information about prefabricated buildings was taken from data created during the previous fieldwork. In the context of determining building performance, 2018 Turkish Building Earthquake Code (TBEC-2018) and Eurocode 8/Part 3 (EC8/3) and American Society of Civil Engineers 41-17 (ASCE41-17) were used. Capacity curves for the buildings were created. The displacement demands of the buildings whose capacity curves are calculated are determined by using nonlinear analysis method. While calculating displacement demands of buildings in question, 420 acceleration records were used. Exceedance rates were calculated based on nonlinear building capacities and seismic demands, then fragility curves were obtained for different damage limit conditions.