Design of Reinforced Concrete Structures for DD-1 and DD-2 Earthquake Ground Motion Levels, Comparison in terms of Structural Features and Conscruction Costs

Creative Commons License

Özbay B.

International Graduate Research Symposium (3rd, 2024 : Istanbul, Türkiye), İstanbul, Türkiye, 8 - 10 Mayıs 2024, ss.509, (Özet Bildiri)

  • Yayın Türü: Bildiri / Özet Bildiri
  • Basıldığı Şehir: İstanbul
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.509
  • Gazi Üniversitesi Adresli: Evet

Özet

The Turkey Building Earthquake Code (TBEC-2018) and the earthquake hazard map were published in 2018 and came into effect on January 1, 2019. In TBEC-2018, 4 earthquake ground motion levels are defined as DD-1, DD-2, DD-3 and DD-4, according to the frequency and magnitude of earthquakes. DD-1 describes the maximum considered earthquake ground motion, which is a very rare event, while DD-2 describes rare earthquake ground motion, DD-3 describes frequent earthquake ground motion, and DD-4 describes service earthquake ground motion. According to our code, when designing buildings, the DD-2 earthquake ground motion level is considered the design ground motion level. In this study as a models, a frame structural system consisting of columns, beams and slabs was selected. The analyses were performed system considering DD-1 and DD-2 earthquake ground motion levels. These models have been designed in accordance with the regulations of TBEC-2018, TS-498, and       TS-500. The analyses were conducted using the mode superposition method with the ETABS 20.3 structural analysis program, which performs finite element analysis. Three-dimensional structural models were created to accurately simulate the geometry of the building and its response under various load combinations in earthquake impact was evaluated. Hatay-Antakya province, which suffered significant loss of life and damage in the earthquake of February 6, 2023, was selected based on its location. Spectral acceleration coefficients were determined from the earthquake hazard map according to site class ZC and earthquake ground motion levels DD-2 and DD-1. After the analysis, structural features such as interstorey drifts, periods, base shear forces, storey displacements, internal forces, overturning moments and construction costs were compared. The structures were built with C30 concrete class and B420C reinforcement steel.