Çekme Düzensizliği Bulunan Betonarme Binaların Geçiş Kat Döşemelerinin Modellenmesi

Authors

  • Nurbanu DEMİRBAŞ FIRAT ÜNİVERSİTESİ

DOI:

https://doi.org/10.46291/ICONTECHvol4iss2pp85-96

Keywords:

Çekme düzensizliği, Esnek diyafram, Geçiş kat döşemesi, Rijit diyafram, Mod birleştirme yöntemi

Abstract

Slabs are horizontal carrier system elements that transfer the earthquake loads acting on the floors to the vertical carrier and enable these elements to work together.  Slabs with high in-plane rigidity compared to vertical carriers are modeled as rigid diaphragms.  The rigid diaphragm provides a suitable solution for reinforced concrete buildings with regular carrier system. However, rigid diaphragm acceptance should be carefully examined for the transition floor slabs in buildings with setback irregularity and with basement floors surrounded by shear wall from normal floors. Turkey Earthquake Building Code the rigidity changes suddenly  transition floor slabs the necessity of modeling with finite elements and sufficient rigidity ownership means that calculates shown is indicated. Therefore, in the study, the applicability of the rigid diaphragm model was investigated by examining the differences between the rigid diaphragm model and the finite element model on the reinforced concrete building models with setback irregularity. For this purpose, slabs on models were modeled in two different ways, namely the rigid diaphragm model and the finite element model, and analyzed using the mode superposition method. The models have been examined by taking into account modal contribution, the horizontal displacement change and changes in stress distributions in the transitional floor. As a result of analyzes, it has been observed that the finite element model gives higher values for the systems examined compared to the rigid diaphragm model, but the difference is between the acceptable limits. Therefore, considering the advantage of the analysis period, it was concluded that the rigid diaphragm acceptance would be suitable for the systems under consideration by taking sufficient slab thickness.

References

Acun, B. (2002). Yatay yük altında bina döşemeleri için rijit diyafram modelinin uygunluğunun incelenmesi. Fen Bilimleri Enstitüsü.

Al-Ali, A. A. K. (1998). Effects of Vertical Irregularities on Seismic Behavior of Building Structures. Stanford University. https://books.google.com.tr/books?id=76HppwAACAAJ

Chintanapakdee, Chatpan, and Anil K Chopra. (2004). “Seismic Response of Vertically Irregular Frames: Response History and Modal Pushover Analyses.” Journal of Structural Engineering 130(8): 1177–85.

Çelebi, E. (2012). Mevcut binalardaki geri çekme düzensizliği. ESOGÜ, Fen Bilimleri Enstitüsü.

Demirbaş, N., (2019). Taşıyıcı Sisteminde Çekme Düzensizliği Olan Betonarme Binaların Burulma Davranışının İncelenmesi., Yüksek lisans tezi, Fen Bilimleri Enstitüsü, Fırat Üniversitesi, Elazığ, Türkiye 93p.

Enstitüsü, Türk Standartları. (2000). “TS 500 Betonarme Yapıların Tasarım ve Yapım Kuralları.” Ankara, Türkiye.

Ghosh, Rahul, ve Rama Debbarma. (2017). Performance Evaluation of Setback Buildings with Open Ground Storey on Plain and Sloping Ground under Earthquake Loadings and Mitigation of Failure. International Journal of Advanced Structural Engineering 9(2): 97–110.

Hadianfard, M. A., ve Sedaghat, S. (2013). Investigation of joist floor diaphragm flexibility on inelastic behavior of steel braced structures. Scientia Iranica, 20(3), 445–453.

Institution, British Standards, European Committee for Standardization, British Standards Institution. Standards Policy, and Strategy Committee. (2005). Eurocode 8. Design of Structures for Earthquake Resistance. Assessment and Retrofitting of Buildings. British Standards Institution.

Jhaveri, D. P. (1967). Earthquake forces in tall buildings with setbacks.

Nakashima, M., Huang, T., ve Lu, L.-W. (1981). Effect of diaphragm flexibility on seismic response of building structures, 1983 NATIONAL SCIENCE FOUNDATION WASHINGTON, DC 20550 October 30, 1981 Professor Ti Huang Fritz Engineering Laboratory Lehigh University Bethlehem, PA 18015.

Sadashiva, V. K., MacRae, G. A., Deam, B. L., ve Spooner, M. S. (2012). Quantifying the seismic response of structures with flexible diaphragms. Earthquake Engineering & Structural Dynamics, 41(10), 1365–1389.

TBDY, (2019). Türkiye bina deprem yönetmeliği, T.C. Bayındırlık ve İskân Bakanlığı, Ankara.

Terzi, M., ve Hasan, E. (2016). Perde-çerçeveli betonarme yapılarda A2 türü düzensizliğin kesit tesirlerine etkisi. Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 11(1), 83–94.

Yalçın, Ö. (2001). Betonarme yapıların deprem altındaki davranışına döşeme modellemelerinin etkisi. Fen Bilimleri Enstitüsü.

Published

2020-09-16

How to Cite

DEMİRBAŞ, N. (2020). Çekme Düzensizliği Bulunan Betonarme Binaların Geçiş Kat Döşemelerinin Modellenmesi. ICONTECH INTERNATIONAL JOURNAL, 4(2), 85-96. https://doi.org/10.46291/ICONTECHvol4iss2pp85-96

Issue

Section

Articles