Abstract
Current building codes necessitate the inclusion of two ground motion acceleration components in the dynamic analysis of structures. However, researches indicate that the orientation of the chosen ground motion data can significantly impact the structural response. This study investigates the influence of the incident angle on a 10-story reinforced concrete building, considering different earthquake selection criteria. Specifically, it is aimed to identify the direction of the seismic data that yields the largest peak ground acceleration by applying rotations with specific angles. Subsequently, the dynamic analysis is performed using both the original and the rotated records that produce the highest acceleration. To ensure a comprehensive evaluation, the earthquake data is classified based on soil types, fault mechanisms, and Aria’s intensity. The results of the dynamic analyses for both the original and oriented data sets are compared, focusing on parameters such as roof displacement, base shear, acceleration and displacement time histories, and acceleration and displacement spectra. Our findings reveal that the base shear and roof displacement obtained from the rotated earthquake data generally exceed those obtained from the original data. This underscores the importance of considering the influence of ground motion direction in structural analysis and design.
Keywords
Incident angle reinforced concrete structure time history analysis soil types near/far field effect
Project Number
20/114/01/2
References
- Altunışık, A.C., & Kalkan, E. (2017). Earthquake incidence angle influence on seismic performance of reinforced concrete buildings. Sigma Journal of Engineering and Natural Sciences, 35, 609-631.
- Athanatopoulou, A.M. (2005). Critical orientation of three correlated seismic components. Engineering Structures, 27, 301-312. https://doi.org/10.1016/j.engstruct.2004.10.011.
- Bugueño, I., Carvallo, J., & Vielma, J.C. (2021). Influence of Directionality on the Seismic Response of Typical RC Buildings. Academic Editor: Maria Favvata, 12, 1534. https://doi.org/10.3390/app12031534.
- Cantagallo, C., Terrenzi, M., Camata, G., & Spacone, E. (2024). Historical Evolution of the Impact of Seismic Incident Angles on the Safety Assessment of Various Building Construction Typologies. Department of Engineering and Geology, 14, 1490. https://doi.org/10.3390/buildings14061490.
- Ghazizadeh, S.A., Grant, D., & Rossetto, T. (2013). Orientation dependence of ground motion and structural response of reinforced concrete space frames, Vienna Congress on Recent Advances in Earthquake Engineering and Structural Dynamics, Vienna, 71, (pp. 28-30).
- Hong, H.P., Pozos-Estrada, A., & Gomez, R. (2009). Orientation effect on ground motion measurement for Mexican subduction earthquakes. Earthquake Engineering and Engineering Vibration, 8, 1-16. https://doi.org/10.1007/s11803-009-8155-z.
- Huang, Y.N., Whittaker, A.S., & Luco, N. (2009). Orientation of maximum spectral demand in the near-fault region. Earthquake Spectra, 25, 707-717. https://doi.org/10.1193/1.3158997.
- Kostinakis, K. G., Manoukas, G. E., & Athanatopoulou, A. M. (2018). Influence of seismic incident angle on response of symmetric in plan buildings. KSCE Journal of Civil Engineering, 22, 725-735. https://doi.org/10.1007/s12205-017-1279-1 Kostinakis, K.G., Athanatopoulou, A.M., & Avramidis, I.E. (2012).
- Orientation effects of horizontal seismic components on longitudinal reinforcement in R/C frame elements. Natural Hazards and Earth System Sciences, 12, 1-10. https://doi.org/10.5194/nhess-12-1-2012, 2012.
- Lee, J. (2014). Directionality of strong ground motion durations, In Tenth US National Conference on Earthquake Engineering, Anchorage, (pp. 21-25).
- Pinzon, L.A., Diaz, S.A., Pujades, L.G., & Vargas, Y.F. (2021). An efficient method for considering the directionality effect of earthquakes on structures, Journal of Earthquake Engineering, 25, 1679-1708. https://doi.org/10.1080/13632469.2019.1597783.
- Ruiz-García, J., & Negrete-Manriquez, J.C. (2011). Evaluation of drift demands in existing steel frames under as-recorded far-field and near-fault mainshock–aftershock seismic sequences, Engineering Structures, 33, 621-634. https://doi.org/10.1016/j.engstruct.2010.11.021.
- Sun, M., Fan, F., Sun, B., & Zhi, X. (2016). Study on the effect of ground motion direction on the response of engineering structure. Earthquake Engineering and Engineering Vibration, 15, 649-656. https://doi.org/10.1007/s11803-016-0355-8.
- TBEC. (2018). Turkish Building Earthquake Code. Disaster and Emergency Management Agency (AFAD).
Abstract
Mevcut bina mevzuatı, yapıların dinamik analizine iki yer hareketi ivme bileşeninin dahil edilmesini gerektirmektedir. Ancak araştırmalar, seçilen yer hareketi verilerinin yönünün yapısal davranışı önemli ölçüde etkileyebileceğini göstermektedir. Bu çalışma, sismik yer hareketinin yönlendirme açısının 10 katlı betonarme bir bina üzerindeki etkisini farklı deprem seçim kriterlerini dikkate alarak araştırmaktadır. Spesifik olarak, belirli açılarla rotasyonlar uygulayarak en büyük yer ivmesini sağlayan sismik verilerin yönünü belirleme hedeflendi. Daha sonra, hem orijinal deprem kayıtlarını hem de en yüksek ivmenin elde edildiği döndürülmüş deprem kayıtları kullanılarak dinamik analizler gerçekleştirildi. Kapsamlı bir değerlendirme yapmak için deprem verileri zemin sınıflarına, fay mekanizmalarına ve Arias şiddetine göre sınıflandırdı. Dinamik analizden elde edilen sonuçlar; çatı deplasmanı, taban kayması, ivme-yer değiştirme verileri ve ivme-yer değiştirme spektrumları göz önünde bulundurularak her iki durumdaki deprem kayıtları için karşılaştırma yapıldı. Bulgularımız, döndürülmüş deprem verilerinden elde edilen taban kesme ve çatı deplasmanlarının genellikle orijinal verilerden elde edilen değerleri aştığını ortaya koymaktadır. Bu, yapısal analiz ve tasarımda yer hareketi yönünün etkisinin dikkate alınmasının önemini vurgulamaktadır.
Keywords
Yönlendirme açısı betonarme yapılar zaman tanım alanında analiz zemin tipleri yakın/uzak fay etkisi
Supporting Institution
Muğla Sıtkı Koçman Üniversitesi
Project Number
20/114/01/2
Thanks
The research described in this paper was financially supported by Muğla Sıtkı Koçman University Scietific Research Projects Coordination Unit. Project Number: 20/114/01/2.
References
- Altunışık, A.C., & Kalkan, E. (2017). Earthquake incidence angle influence on seismic performance of reinforced concrete buildings. Sigma Journal of Engineering and Natural Sciences, 35, 609-631.
- Athanatopoulou, A.M. (2005). Critical orientation of three correlated seismic components. Engineering Structures, 27, 301-312. https://doi.org/10.1016/j.engstruct.2004.10.011.
- Bugueño, I., Carvallo, J., & Vielma, J.C. (2021). Influence of Directionality on the Seismic Response of Typical RC Buildings. Academic Editor: Maria Favvata, 12, 1534. https://doi.org/10.3390/app12031534.
- Cantagallo, C., Terrenzi, M., Camata, G., & Spacone, E. (2024). Historical Evolution of the Impact of Seismic Incident Angles on the Safety Assessment of Various Building Construction Typologies. Department of Engineering and Geology, 14, 1490. https://doi.org/10.3390/buildings14061490.
- Ghazizadeh, S.A., Grant, D., & Rossetto, T. (2013). Orientation dependence of ground motion and structural response of reinforced concrete space frames, Vienna Congress on Recent Advances in Earthquake Engineering and Structural Dynamics, Vienna, 71, (pp. 28-30).
- Hong, H.P., Pozos-Estrada, A., & Gomez, R. (2009). Orientation effect on ground motion measurement for Mexican subduction earthquakes. Earthquake Engineering and Engineering Vibration, 8, 1-16. https://doi.org/10.1007/s11803-009-8155-z.
- Huang, Y.N., Whittaker, A.S., & Luco, N. (2009). Orientation of maximum spectral demand in the near-fault region. Earthquake Spectra, 25, 707-717. https://doi.org/10.1193/1.3158997.
- Kostinakis, K. G., Manoukas, G. E., & Athanatopoulou, A. M. (2018). Influence of seismic incident angle on response of symmetric in plan buildings. KSCE Journal of Civil Engineering, 22, 725-735. https://doi.org/10.1007/s12205-017-1279-1 Kostinakis, K.G., Athanatopoulou, A.M., & Avramidis, I.E. (2012).
- Orientation effects of horizontal seismic components on longitudinal reinforcement in R/C frame elements. Natural Hazards and Earth System Sciences, 12, 1-10. https://doi.org/10.5194/nhess-12-1-2012, 2012.
- Lee, J. (2014). Directionality of strong ground motion durations, In Tenth US National Conference on Earthquake Engineering, Anchorage, (pp. 21-25).
- Pinzon, L.A., Diaz, S.A., Pujades, L.G., & Vargas, Y.F. (2021). An efficient method for considering the directionality effect of earthquakes on structures, Journal of Earthquake Engineering, 25, 1679-1708. https://doi.org/10.1080/13632469.2019.1597783.
- Ruiz-García, J., & Negrete-Manriquez, J.C. (2011). Evaluation of drift demands in existing steel frames under as-recorded far-field and near-fault mainshock–aftershock seismic sequences, Engineering Structures, 33, 621-634. https://doi.org/10.1016/j.engstruct.2010.11.021.
- Sun, M., Fan, F., Sun, B., & Zhi, X. (2016). Study on the effect of ground motion direction on the response of engineering structure. Earthquake Engineering and Engineering Vibration, 15, 649-656. https://doi.org/10.1007/s11803-016-0355-8.
- TBEC. (2018). Turkish Building Earthquake Code. Disaster and Emergency Management Agency (AFAD).
Details
| Primary Language | English |
|---|---|
| Subjects | Reinforced Concrete Buildings, Earthquake Engineering, Numerical Modelization in Civil Engineering |
| Journal Section | Civil Engineering |
| Authors | |
| Project Number | 20/114/01/2 |
| Publication Date | December 3, 2024 |
| Submission Date | March 27, 2024 |
| Acceptance Date | July 13, 2024 |
| Published in Issue | Year 2024Volume: 27 Issue: 4 |
