Main Article Content
Irregularities in structures, such as soft story irregularity, might make them vulnerable under lateral forces such as earthquake. One solution to this problem is a suitable use of infill members. In this study, the effect of masonry infill walls, shear walls and steel bracings on the soft story irregularity and story drift of a 10-story building is evaluated. The building has its first two stories not infilled, and the remaining stories fully infilled with masonry infill walls. Fourteen models of different infill situation divided into three groups were studied. In the first infill group, the 1st and 2nd stories were fully infilled with masonry infill walls, shear walls and steel bracings. In the second infill group, infill members were used in the center of the building. In the third group, infill members were placed in some portions of the exterior surface of the building. Moreover, two more models were developed to overcome the excess of the permissible values of partially infilled models using shear walls by changing the thickness of the shear walls. The models were analyzed using ETABS analyzing software. The results showed that arrangement of infill members has remarkable effect on the soft story irregularity and story drift. They also showed that symmetry in the elevation of the building has great impact on the performance of the building against stiffness irregularity and lateral displacement of the structure. The most applicable solution for the stiffness irregularity and story drift problems in the studied building is partially infilling the exterior surfaces with steel bracings or shear walls. With these infilling methods, the interior parts of the first two stories will be empty and can be used for different purposes since the infilling is only applied in the exterior surfaces of the building.
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Dya, A. F. C., & Oretaa, A. W. C. (2015). Seismic vulnerability assessment of soft story irregular buildings using pushover analysis. Procedia Engineering, 125, 925-932.
Inel, M., & Ozmen, H. B. (2008, October). Effect of infill walls on soft story behavior in mid-rise RC buildings. In Memorias, Memorias, 14th World Conference on Earthquake Engineering (p. 0279). Artículo Beijing, China.
Hejazi, F., Jilani, S., Noorzaei, J., Chieng, C. Y., Jaafar, M. S., & Ali, A. A. (2011, February). Effect of soft story on structural response of high-rise buildings. In IOP Conference Series: Materials Science and Engineering (Vol. 17, No. 1, p. 012034). IOP Publishing.
Ali, S., Malik, F., Sonone, T., Kalbande, B., & Agale, H. (2017). Analysis of building with soft storey during earthquake. International Research Journal of Engineering and Technology (IRJET), 4(3), 1005-1009.
Dolšek, M., & Fajfar, P. (2001). Soft storey effects in uniformly infilled reinforced concrete frames. Journal of Earthquake Engineering, 5(01), 1-12.
Işık, E., Özdemir, M., & Kutanis, M. (2016). Farklı zemin kat yüksekliklerinin yapı performansına etkisi. Dicle Üniversitesi Mühendislik Fakültesi Mühendislik Dergisi, 7(3), 445-454.
Jayarajan, P. (2019). Seismic review of conceptual layouts in earthquake prone areas: a challenge for practising architects. International Journal of Research and Scientific Innovation (IJRSI), VI(III), 73–78.
Setia, S., & Sharma, V. (2012). Seismic response of RCC building with soft storey. International Journal of Applied Engineering Research, 7(11), 180–186.
Misir, I. S. (2015). Potential use of locked brick infill walls to decrease soft-story formation in frame buildings. journal of performance of constructed facilities, 29(5), 04014133.
Beigi, H. A., Sullivan, T. J., Christopoulos, C., & Calvi, G. M. (2015). Factors influencing the repair costs of soft-story RC frame buildings and implications for their seismic retrofit. Engineering Structures, 101, 233-245.
Döndüren, M. S., & Nakipoğlu, A. (2019). Strengthening of reinforced concrete buildings with soft story irregularity. Materials Testing, 61(5), 485-494.
Pavithra, R., & Babulal, V. H. (2018). Study of behavior of the soft stories at different locations in the multi-story building. International Journal of Engineering Research & Technology (IJERT), 7(6), 53–59.
Islam, M. S., & Shuvo, A. K. (2017). Comparative study of strengthening strategies for reinforced concrete frame with soft ground story. Challenge Journal of Concrete Research Letters, 8(4), 122.
Matiyas, S., Workeluel, N., Mohanty, T., & Saha, P. (2023). Review of different analysis and strengthening techniques of soft story buildings. Materials Today: Proceedings.
TBES. (2018). Türkiye bina deprem yönetmeliği. Türk Standardları Enstitüsü, Ankara.
Şeşetyan, K., Hancılar, U., Şafak, E., Çaktı, E., Kara, S., Uzunkol, Ö., Konukçu, B. E., Günay, S., Mehmetoğlu, H., Menteşe, E. Y., Duran, K., & Kahraman, T. (2020). İstanbul ili bağcılar ilçesi olası deprem kayıp tahminleri kitapçığı. İstanbul Büyükşehir Belediyesi, Deprem Risk Yönetimi ve Kentsel İyileştirme Daire Başkanlığı, Deprem ve Zemin İnceleme Müdürlüğü ve Boğaziçi Üniversitesi Kandilli Rasathanesi ve Deprem Araştırma Enstitüsü Deprem Mühendisliği Ana Bilim Dalı. https://depremzemin.ibb.istanbul/wp-content/uploads/2020/11/Bagcilar.pdf.
Karapınar, İ. S. (2018). Earthquake risk analysis and damage assessment of districts of Istanbul. Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi, 7(2), 741–750.
Karaca, H. (2021). 2007 ve 2018 deprem yönetmelikleri kullanılarak farklı zeminlere göre ve farklı kentler için elde edilen tasarım ivmelerinin karşılaştırılması, Kapadokya örneği. Afet ve Risk Dergisi, 4(1), 42–52.
Amalia, A. R., & Iranata, D. (2017). Comparative study on diagonal equivalent methods of masonry infill panel. AIP Conference Proceedings 1855, 030011.
Mehrabi, A. B., Benson Shing, P., Schuller, M. P., & Noland, J. L. (1996). Experimental evaluation of masonry-infilled RC frames. Journal of Structural engineering, 122(3), 228-237.
ASCE/SEI 7-16. (2017). Minimum design loads and associated criteria for buildings and other structures. Engineers, American Society of Civil.
IS 1893-1. (2002). Criteria for earthquake resistant design of structures, Part 1: General provisions and buildings. Bureau of Indian Standards.
Donduren, M. S., & Nakipoglu, A. (2018). Comparison of R/C buildings with a soft-storey irregularity with respect to various national building codes. Materiali in Tehnologije, 52(5), 575–581.
Sahu, V. S., & Shrivastava, H. (2020). Retrofitting of soft storey building by using different bracing system due to seismic load. International Journal of Engineering Research & Science (IJOER), 6(7), 1–13.