Seismic Analysis of Different Slab Types for Reinforced Concrete Structures

Year 2021, Issue: 27, 171 - 176, 30.11.2021

Başak Zengin , Pınar Usta

https://doi.org/10.31590/ejosat.946539

Abstract

In this study, a reinforced concrete framed building was modeled with slab slab and unidirectional gear slab with the SAP2000 V21 program to examine the effect of slab type on the behavior of reinforced concrete buildings. For the earthquake calculation of the building, an artificial earthquake record was produced according to the Earthquake Level 2 level defined in the Turkish Building Earthquake Code (2008). With the earthquake record produced, linear calculations were made in the time history of the building with two different types of flooring, and the floor shear forces, floor drift values, floor stiffnesses, and maximum displacement values of the buildings were obtained. It has been observed that the performance of the ribbed slab building against earthquake loads is lower than that of the plate slab. It has been tried to reveal that the use of buildings with ribbed floors in areas with high earthquake risk should be considered, especially existing buildings with single-sided gear flooring should be reconsidered according to current regulations with the present study.

Keywords

Slab, SAP2000, Building, Earthquake

Farklı Döşeme Tiplerine Sahip Betonarme Yapıların Sismik Davranışı

Abstract

Bu çalışmada döşeme tipinin betonarme bina davranışına etkisini incelemek için betonarme bir çerçeveli bina plak döşeme ve tek doğrultuda çalışan dişli döşemeli olarak SAP2000 V21 programı ile modellenmiştir. Binanın deprem hesabı için Türkiye Bina Deprem Yönetmeliği (2008)’ de tanımlanan Deprem Düzeyi 2 seviyesine göre yapay deprem kaydı üretilmiştir. Üretilen deprem kaydı ile farklı iki tip döşemeye sahip binanın zaman tanım alanında doğrusal hesabı yapılmış ve binalara ait kat kesme kuvvetleri, kat öteleme değerleri, kat rijitlikleri, maksimum yer değiştirme değerleri elde edilmiştir. Nervürlü döşeme binasının deprem yüklerine karşı performansının plak döşemeye göre daha düşük olduğu görülmüştür. Deprem riski yüksek bölgelerde nervürlü döşeme sahip bina kullanımına dikkat edilmesi gerektiği, Özelikle tek doğrultuda çalışan dişli döşemeye sahip mevcut binaların mevcut yönetmeliklere göre yeniden ele alınması gerektiği bu çalışma ile ortaya konulmaya gayret edilmiştir.

Keywords

Döşeme, SAP2000, Yapı, Deprem

References

• Malviya, S., & Tiwari, M. (). Behaviour of Flat Slab, Waffle Slab, Ribbed & Secondary Beam in a multistorey Building under Seismic Response: A Review.
• Timo K. T., & S. Ali Mirza. (2014). Effective Length of Reinforced Concrete Columns in Braced Frames. International Journal of Concrete Structures and Materials, 8(2), 100–106.
• Arman, I.M. (2014). Analysis of two-way ribbed and waffle slabs with hidden beams. International journal of Civil and Structural Engineering, 4(3), 342-352.
• Baig, M. M., Rashid, A., Reddy, Y., & Krishna, T. V. (2021). A comparative study on seismic analysis of G+ 6 building with ribbed slab & conventional slab using SAP2000 software. In IOP Conference Series: Materials Science and Engineering, 1112(1), 012026.
• Usta, P., & Bozdağ, Ö. Tarihi Başdurak Camisinin Deprem Analizi. Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi, 1000(1000), 0-0.
• Costa, Y., & Araújo, T. (2014). Evaluation of dynamic behavior of waffle slab to gym center. Latin American Journal of Solids and Structures, 11(7), 1114-1131. Middleton, C.J., Brownjohn, J.M.W., (2010). Response of frequency floors: a literature review. Engineering Structures, 32, 337-352.
• Priya, K.S., Durgabhavani, T., Mounika, K., Nageswari, M., & Poluraju, P. (2012). Non-linear pushover analysis of flat slab building by using SAP2000, International Journal of Recent Technology and Engineering (IJRTE), 1(1), 29-33.
• Bhina, M.R., Banerjee, A., & Paul, D.K., (2013). Assessment of different aspects of RC flat-slab building over normal RC frame building, International Conference on Structural Engineering and Construction Management, At Sri Lanka.
• Qian, K., Dong, G. Y., Zhang, J., & Yuan, Q. (2013). Study on the Effect of Grid Beam on Seismic Performance of Improved Multi-Ribbed Slab Structure. In Advanced Materials Research.724, 1754-1758.
• Thomas, E., George, J., & Paulose, D. (2017). Assessment of the Diaphragm Condition For The Floor Systems.