The earthquake performance assessment of a reinforced concrete building with nonlinear static and dynamic analyses

Alperen Türkay

doi:10.7764/RDLC.24.3.676

Authors

Alperen Türkay Department of Civil Engineering, Sivas Cumhuriyet University, Sivas (Türkiye)

DOI:

https://doi.org/10.7764/RDLC.24.3.676

Keywords:

Turkish earthquake code, seismic performance assessment, pushover analysis, nonlinear time history analysis, reinforced concrete buildings.

Abstract

In this study, the earthquake performance evaluation of a 4-storey residential building was investigated. The residential building was designed according to studies on Türkiye’s building stock and the Turkish Earthquake Code 1997 (TEC-1997). The building was considered as an existing building, and its earthquake performance was evaluated according to the Turkish Earthquake Code 2007 (TEC-2007) and the Turkish Earthquake Code 2018 (TEC-2018). Pushover (POA) and nonlinear time history (NTHA) analyses, which are given in TEC-2007 and TEC-2018, were used in evaluating the earthquake performance of the building. The main purpose of the study is to compare both earthquake codes and analysis methods. The study is valuable and original because it uses a building that represents Türkiye's low-rise building stock and conducts a detailed performance evaluation according to different codes and methods. The performance of the building was evaluated under the design earthquake. The analyses of the structural system were accomplished by using SAP2000 software, incorporating inelastic material behavior for concrete and steel. The software of RESPONSE2000 was used for sectional analyses of the structural system and the moment-curvature curves. Ground motion records were taken from the PEER Ground Motion Database, and the records were edited with the help of SEISMOSIGNAL software. The numerical results were given in tables and figures comparatively and discussed. It was determined that TEC-2018 is safer than TEC-2007 in terms of determining ground motion records and damage limits of the structural system elements. Moreover, the results showed that when POA and NTHA were compared, although NTHA provided more realistic results, POA can also provide acceptable results.

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