Farklı Güçlendirme Yöntemleri Kullanılarak 1/5 Ölçekli Betonarme Çerçevelerde Kısa Kolon Davranışlarının İncelenmesi

Year 2019, Volume: 9 Issue: 1, 433 - 445, 01.03.2019

Fatih Süleyman Balık , Fatih Bahadır

https://doi.org/10.21597/jist.444766

Cited By: 1

Abstract

Bu deneysel çalışmadaki amaç, iki güçlendirme
methodunda pencere boşluğunun kısa kolon davranışına etkilerini araştırmaktır.
Bu çalışmada, iki katlı, 1/5 ölçekli ve tek açıklıklı yedi betonarme çerçeve
üretilmiştir. Numuneler, Türkiye'de konut binalarında yaygın olarak görülen
çeşitli eksiklikleri içermektedir.  Bu
numuneler, sabit düşey yük ve yatay yükleme altında test edilmiştir. Birinci
numune referans boş çerçeve olarak üretilmiştir. İkinci ve üçüncü numuneler gaz
beton bloklu dolgu duvarlı olarak üretilmiştir. Dördüncü ve beşinci numuneler
betonarme dolgu duvarları ile güçlendirilmiştir. Altıncı ve yedinci numuneler
ise dıştan betonarme duvarlı ve betonarme kolon mantolu olarak
güçlendirilmiştir. Tüm numunelerin duvarları, kısa kolon davranışının etkilerini
araştırmak için iki farklı pencere boşluğu ile üretilmiştir. Test sonuçları
göstermiştir ki, uygulanan güçlendirme yöntemleri, betonarme çerçevenin, yatay
yük taşıma kapasitesini, enerji tüketme kapasitesini ve başlangıç rijitliğini
önemli derecede artırmıştır. Betonarme kolon mantosu sayesinde dıştan betonarme
duvarlı numunelerde kısa kolon davranışı önlenmiştir.

Keywords

Betonarme çerçeveler, tersinir tekrarlanır yatay yükleme, güçlendirme, pencere açıklıkları, pencere açıklıkları

Investigation of Short Column Behaviors at 1/5 Scaled Reinforced Concrete Frames Using Different Strengthening Methods

Abstract

The
purpose of in this experimental study is to investigate the effects of short
column behavior due to window opening at two strengthening methods. At this
study, seven reinforced concrete frames as two stories, 1/5 scaled and one bay
were produced. The specimens contained several deficiencies that were commonly
observed in residential buildings in Turkey. These specimens were tested under
lateral loading and constant vertical loading. First specimen was produced as
the reference bare frame. Second and third specimens were produced with infill
autoclaved aerated concrete blocks wall. Fourth and fifth specimens were
strengthened with infill RC shear wall. Sixth and seventh specimens were
strengthened with external RC shear wall and RC column jackets. The walls of
all specimens were manufactured with two different windows opening to
investigate the effects of short column behavior. The test results showed that
these applied strengthening methods have significantly increased the lateral
load carrying and energy dissipation capacities, initial stiffness of the RC
frame. Thanks to RC column jackets, at specimens with the external RC shear
wall was prevented to the short column behavior.

Keywords

RC frames, reversed cyclic lateral loading, strengthening, window openings, window openings

References

• Altin S, Anil Ö, Kara ME, Kaya M, 2008. An Experimental Study on Strengthening of Masonry Infilled RC Frames Using Diagonal CFRP Strips. Composites Part B: Engineering, 39(4), 680-693.
• Anil Ö, Altin S, 2007. An Experimental Study on Reinforced Concrete Partially Infilled Frames. Engineering Structures, 29(3), 449-460.
• Anil Ö, Togay A, Işleyen, ÜK, Döngel N, Söğütlü C, 2018. Effect of Timber Type and Nail Spacing on the Hysteretic Behavior of Timber-Framed Shear Walls with Openings. International Journal of Civil Engineering, 16(6), 629-646.
• Bahadır F, Balık FS, 2017. Predicting Displacement Data of Three-Dimensional Reinforced Concrete Frames with Different Strengthening Applications Using ANN. Periodica Polytechnica Civil Engineering, 61(4), 843-856.
• Bahadir F, Kamanli M, Korkmaz HH, Balik FS, Unal A, Korkmaz SZ, 2013. Strengthening of Gravity Load Designed Reinforced Concrete Frames with the External RC Shear Walls. In Advanced Materials Research, 747, 265-268, Trans Tech Publications.
• Balik FS, Korkmaz HH, Kamanli M, Bahadir F, Korkmaz SZ, Unal A, 2013. An Experimental Study on Reinforced Concrete Infilled Frames with Openings. Advanced Materials Research, 747, 429-432.
• Canbay E, Ersoy U, Ozcebe G, 2003. Contribution of Reinforced Concrete Infills to Seismic Behavior of Structural Systems. ACI Structural Journal, 100(5), 637-643.
• EERC, November 2011. Van Earthquake Report. METU, Ankara, Turkey.
• Erdem I, Akyuz U, Ersoy U, Ozcebe G, 2006. An Experimental Study on Two Different Strengthening Techniques for RC Frames. Engineering Structures, 28(13), 1843-1851.
• Erdik M, Kamer Y, Demircioğlu M, Şeşetyan K, 2012. 23 October 2011 Van (Turkey) Earthquake. Natural hazards, 64(1), 651-665.
• Ersoy U, Uzsoy S, 1971. The Behavior and Strength of Infilled frame. TUBITAK MAG-205 report, Ankara Turkey.
• Ha SK, Yu SY, Kim JS, 2018. Experimental Study on Existing Reinforced Concrete Frames Strengthened by L-type Precast Concrete Wall Panels to Earthquake-Proof Buildings. KSCE Journal of Civil Engineering, 1-13.
• Kaltakci MY, Arslan MH, Yilmaz US, Arslan HD, 2008. A New Approach on the Strengthening of Primary School Buildings in Turkey: An Application of External Shear Wall. Building and Environment, 43(6), 983-990.
• Kaltakci MY, Arslan MH, Yavuz G, 2010. Effect of Internal and External Shear Wall Location on Strengthening Weak RC Frames. Scientia Iranica, Transaction A, Civil Engineering, 17(4), 312.
• Kaltakci MY, Arslan MH, Yilmaz US, 2011. Experimental and Analytical Analysis of RC Frames Strengthened Using RC External Shear Walls. Arabian Journal for Science and Engineering, 36(5), 721.
• Kara ME, Altin S, 2006. Behavior of Reinforced Concrete Frames with Reinforced Concrete Partial Infills. ACI Structural Journal, 103(2), 701-709.
• Korkmaz SZ, 2013. Observations on the Van Earthquake and Structural Failures. Journal of Performance of Constructed Facilities, 29(1), 04014033.
• Lee HS, Woo SW, 2002. Effect of masonry infills on seismic performance of a 3‐storey R/C frame with non‐seismic detailing. Earthquake Engineering & Structural Dynamics, 31(2), 353-378.
• Ruiz G, Elices M, Planas J, 1998. Experimental Study of Fracture of Lightly Reinforced Concrete Beams. Materials and Structures, 31(10), 683-691.
• Sezen H, Whittaker AS, Elwood KJ, Mosalam KM, 2003. Performance of Reinforced Concrete Buildings During the August 17, 1999 Kocaeli, Turkey Earthquake, and Seismic Design and Construction Practise in Turkey. Engineering Structures, 25(1), 103-114.
• Soltanzadeh G, Osman HB, Vafaei M, Vahed YK, 2018. Seismic Retrofit of Masonry Wall Infilled RC Frames Through External Post-Tensioning. Bulletin of Earthquake Engineering, 16(3), 1487-1510.
• Surendran S, Kaushik HB, 2012. Masonry Infill RC Frames with Openings: Review of In-Plane Lateral Load Behaviour and Modeling Approaches. The Open Construction and Building Technology Journal, 6(Suppl. 1-M9), 126-154.
• Turkish Earthquake Code, 2007. Specification for Structures to be Built in Disaster Areas, Ministry of Public Works and Settlement Government of Republic of Turkey.
• Unal A, Balik FS, Bahadir F, Korkmaz HH, Kaltakci MY, Kamanli M, 2014. Experimental Study of Strengthening of RC Frames with Column Retrofitting. Journal of Selcuk University Natural and Applied Science, 3(3), 39-54.
• Wasti ST, Özcebe G, (Eds.), 2012. Seismic Assessment and Rehabilitation of Existing Buildings. 29, Springer Science & Business Media.