An Experimental Study to Investigate Shear Performance of Anchor Bolt to Strengthen an RC Frame Against Lateral Load

Fulya Kale; Orhan Doğan

doi:10.29137/umagd.1281639

TR EN

Bir Betonarme Çerçevesini Yanal Yüke Karşı Güçlendirmek İçin Ankraj Bulonlarının Kesme Performansının İncelenmesine Yönelik Deneysel Bir Çalışma

Öz

Mevcut betonarme bir yapının yatay deprem yüklerine karşı yetersiz kalması durumunda, evlerin boşaltılmasını gerektiren, kullanımını durduran, yıkıcı, rahatsız edici ve tahribatlı diğer geleneksel düzlem içi güçlendirme yöntemlerine göre yapısal çelik profillerin dıştan çelik kesme çaprazlarının kullanılması, en çok tercih edilen basit, zaman kazandıran ve düşük maliyetli güçlendirme yöntemlerinden biridir. Bu yöntem ile güçlendirme çalışmaları esnasında bina sakinleri günlük yaşamlarına devam edebilirler. Bu deneysel çalışma ile çelik lamayı betonarme tek açıklıklı çerçeveye bağlamak için kullanılan ankraj bulonlarının gömme derinliğine bağlı olarak kesme performansının belirlenmesi amaçlanmıştır. Bu amaçla özel bir çelik konstrüksiyon yükleme sistemi tasarlanmış ve inşa edilmiş ve altı adet betonarme kolon-kiriş çerçevesi hazırlanmış ve beş tanesi çerçeveye farklı derinliklerde farklı sayıda ankrajlarla bağlanan çelik lama kullanılarak güçlendirilmiştir. Ayrıca ankraj gömme derinliğine bağlı olarak çelik ankraj bulonlarının kesme performansı ile ilgili bir denklem bulunmuştur.

Anahtar Kelimeler

Betonarme Kiriş-Kolon Çerçevesi , Betonarme Yapıların Çelik Çaprazlarla Güçlendirilmesi , Depreme Karşı Güçlendirme , Çelik Ankraj Gömme Derinliği , Çelik Ankraj Bulonlarının Kesme Performansı

An Experimental Study to Investigate Shear Performance of Anchor Bolt to Strengthen an RC Frame Against Lateral Load

Abstract

The use of structural steel profiles as an external shear bracing is one of the most preferable simple, time saving and cost-efficient strengthening method for an inadequate existing reinforced concrete (RC) structure against earthquake lateral loads in comparison to the other interrupting, irritating and destructive traditional in plane strengthening methods which need evacuation of houses. With the use of this method, inhabitants of building can continue their daily life as usual during the strengthening site work. With this experimental study it is aimed to determine the shear performance of anchor bolts used to connect the steel lama to an RC single span frame depending on embedment depth. For this purpose, a special steel construction loading system has been designed and constructed and six RC column-beam frames are prepared and five of them were strengthened using steel lama connected to the frame with different numbers of anchors in different depths. And also an equation was found related with the shear performance of steel anchor bolts depending on the anchor embedment depth.

Keywords

RC Beam-Column Frame , Strengthening of RC Structures with Steel Bracings , Strengthening Against Earthquake , Steel Anchor Embedment Depth , Shear Performance of Steel Anchor Bolts

References

Ahmad, N., & Masoudi, M. (2020). Eccentric steel brace retrofit for seismic upgrading of deficient reinforced concrete frames, Bulletin of Earthquake Engineering,18, 2807-2841. doi: 10.1007/s10518-020-00808-0
Aydin, E., Ozturk B., & Duzel, E. (2012). Rehabilitation of Planar Building Structures using Steel Diagonal Braces and Dampers, 5th European Conference on Structural Control (EACS 2012), Genoa, Italy, June 2012, Paper No. # 024.
Chao, SH., Goel, SC., & Lee, SS. (2007). A seismic design lateral force distribution based on inelastic state of structures, Earthquake Spectra, 23(3), 547-569. doi: 10.1193/1.2753549
Dogan, O., Celik, F., Odacioglu, O.G., & Sevim, O. (2021). In situ determination of the mechanical performance of the steel rods anchored on an existing masonry building wall, Sādhanā, 46(4), 1–13.
Formisano, A., Massimilla, A., Di Lorenzo, G., & Landolfo, R. (2020). Seismic retrofit of gravity load designed RC buildings using external steel concentric bracing systems, Engineering Failure Analysis, 111, 104485. doi:10.1016/j.engfailanal.2020.104485
Kassem, M., M., Nazri, F., M., Farsangi, E., N., & Ozturk, B. (2022). Improved Vulnerability Index Methodology to Quantify Seismic Risk and Loss Assessment in Reinforced Concrete Buildings, Journal of Earthquake Engineering, 26(12), 6172-6207. doi: 10.1080/13632469.2021.1911888.
Kawamata, S., & Ohnuma, M. (1981). Strengthening effect of eccentric steel braces to existing reinforced concrete frames, 7WCEE Conference, Proceedings of 2nd Seminar on Repair and Retrofit of Structures.
Korkmaz, K.A. (2007). Çelik çapraz elemanlarla güçlendirilen betonarme yapıların deprem davranışlarının incelenmesi, Doğuş Üniversitesi Dergisi, 8(2), 191-201.
Maheri, M.R., & Sahebi, A. (1997). Use of steel bracing in reinforced concrete frames, Engineering Structures, 19(12), 1018-1024, doi: 10.1016/S0141-0296(97)00041-2
Odacioglu, O.G., Dogan, O., & Kale, F. (2022). An experimental study to determine the optimum depth of steel anchors in RC subjected to shear force, Structures, 44, 1321-1327.

Sharma, S., & Tiwary, A.K. (2020). Analysis of a building under composite structural system: A review, Materials Today:Proceedings, 33, 1650-1659. doi: 10.1016/j.matpr.2020.06.376
Torabi, A., & Maheri, M.R. (2017). Seismic repair and retrofit of RC beam–column joints using stiffened steel plates, Iranian Journal of Science and Technology, Transactions of Civil Engineering, 41(1), 13-26.
TS500. (2000). Requirements for Design and Construction of Reinforced Concrete Structures, Turkish Standards Institution, Ankara, Turkiye.
Yılmaz, E.E., Uzun, M., & Çöğürcü, M.T. (2018). Betonarme çerçevelerin güçlendirilmesi ve deprem performasının iyileştirilmesi, Selçuk-Teknik Dergisi, 17(3), 100-111.
Yoldaş, F. (2015). An Experimental Study on Performance Analysis of Steel Anchorages For Reinforced Concrete Frames Strengthened With Steel Profiles, Master'sThesis, Department of Civil Engineering, Kirikkale University.
Youssef, M.A., Ghaffarzadeh, H., & Nehdi, M. (2007). Seismic performance of RC frames with concentric internal steel bracing, Engineering Structures, 29(7), 1561-1568. doi: 10.1016/j.engstruct.2006.08.027

Details

Primary Language

English

Subjects

Civil Engineering

Journal Section

Research Article

Authors

Fulya Kale ^*
0000-0002-9771-5007
Türkiye

Orhan Doğan
0000-0002-4942-1725
Türkiye

Early Pub Date

July 7, 2023

Publication Date

July 14, 2023

Submission Date

April 12, 2023

Acceptance Date

June 12, 2023

Published in Issue

Year 2023 Volume: 15 Number: 2

DOI

https://doi.org/10.29137/umagd.1281639

IZ

https://izlik.org/JA93LL64JP

APA

Kale, F., & Doğan, O. (2023). An Experimental Study to Investigate Shear Performance of Anchor Bolt to Strengthen an RC Frame Against Lateral Load. International Journal of Engineering Research and Development, 15(2), 763-775. https://doi.org/10.29137/umagd.1281639

Cited By

Effect of stirrup spacing on strengthening beams with insufficient shear capacity using innovative mechanical steel stitches

Structural Concrete

https://doi.org/10.1002/suco.70229

Kırıkkale University, Faculty of Engineering and Natural Science, 71450 Yahşihan / Kırıkkale, Türkiye.

ijerad@kku.edu.tr