INVESTIGATION OF SHEAR BEHAVIOR OF REINFORCED CONCRETE BEAMS UNDER SIMPLE AND FIXED SUPPORT CONDITIONS

Mehmet KAMANLI; Alptuğ ÜNAL

INVESTIGATION OF SHEAR BEHAVIOR OF REINFORCED CONCRETE BEAMS UNDER SIMPLE AND FIXED SUPPORT CONDITIONS

Mehmet KAMANLI, Alptuğ ÜNAL

Öz

Many experimental studies were carried out to research about reinforced concrete beams, which are an important part of the structural bearing system. In these studies, simple support conditions were generally taken into consideration. However, it is known that the support zones of beams in reinforced concrete buildings are closer to the fixed support conditions. In this study, the effect of the change of support conditions in reinforced concrete beams on the beam shear behavior was examined. For this purpose, 4 full-scale reinforced concrete beam elements were tested on a 4 point loading mechanism. Two of these specimens were tested with simple support and two with fixed support. In order to determine the behavior of the test elements, load-displacement curves were drawn, stiffness and energy consumption capacities were determined and cracks formed during the test were examined. When the test results were examined, it was found that the behavior of the fixed supported specimens were quite different from the ones of the simple supported specimens.

Anahtar Kelimeler

Reinforced concrete beams, simply support, fixed support, experimental study, cracking patterns.

Tam Metin:

PDF (English)

Referanslar

Altın, S., Demirel Y., 1997, Kesmeye Karşı Güçlendirilen Betonarme Kirişlerin Davranışı- a/d=3, İMO Technical Journal, 108, 1471-1489.

Altın, S., Anıl, Ö., Gökten, Y., 2004, Betonarme Kirişlerin Kesmeye Karşı Güçlendirilmesinde Bir Kelepçe Uygulaması, Gazi University Journal of Engineering Faculty, 19, 415-422.

Campione, G., Minafò, G., 2012, Behaviour of concrete deep beams with openings and low shear span-to depth ratio, Engineering Structures, 41, 294–306.

Conforti, A., Minelli, F., Tinini, A., Plizzari, G.A., 2015, Influence of polypropylene fibre reinforcement and width-to-effective depth ratio in wide-shallow beams, Engineering Structures, 88, 12–21.

Ebead, U., 2015, Inexpensive Strengthening Technique for Partially Loaded Reinforced Concrete Beams: Experimental Study, J. Mater. Civ. Eng., 27(10), 04015002-1-11.

Kamanli, M., 1999, Değişken Kesitli Kirişlerin Davranışının Teorik Ve Deneysel Olarak İncelenmesi” PhD .Thesis, Graduate School of Natural Sciences, Civil Engineering, Selcuk University, Konya, Turkey.

Kamanli, M., Unal, A., 2016, Experimental Study on Shear Behavior of Simply Supported Full Scaled Reinforced Concrete Beams, 2nd International Conference on Science, Ecology and Technology (ICONSETE-2016), Barcelona, Spain.

Kim, H.S., Lee, M.S., Shin, Y.S., 2011, Structural Behaviors of Deep RC Beams under Combined Axial and Bending Force, Procedia Engineering, 14, 2212–2218.

Kotsovos, M.D., Pavlovic, M.N., 1997, Size effects in beams with small shear span-to-depth ratios, Compurers & Structures, 44, 285-295.

Unal, A., Kamanli, M., 2016, Investigation of Stirrup Effect on Shear Behavior of Fixed Supported Reinforced Concrete Beams, 2nd International Conference on Science, Ecology and Technology (ICONSETE-2016), Barcelona, Spain.

Unal, A., 2016, Sabit Dikdörtgen Kesitli Kirişlerin Farklı Mesnet Koşullarında Kesme Kapasitesinin Araştırılması, Selcuk University, Graduate School of Natural and Applied Sciences, Phd Thesis, 1-375.

Wang, T., Dai, J.G., Zheng, J.J., 2015, Multi-angle truss model for predicting the shear deformation of RC beams with low span-effective depth ratios, Engineering Structures, 91, 85–95.