scholarly journals Influence of the plastic hinge rotations on shear strength in continuous reinforced concrete beams with shear reinforcement

2020 ◽  
Vol 207 ◽  
pp. 110242 ◽  
Author(s):  
Andrea Monserrat López ◽  
Pedro Fco. Miguel Sosa ◽  
José Luis Bonet Senach ◽  
Miguel Ángel Fernández Prada
Keyword(s):  
Shear Strength ◽  
Reinforced Concrete ◽  
Concrete Beams ◽  
Plastic Hinge ◽  
Reinforced Concrete Beams ◽  
Shear Reinforcement

scholarly journals Experimental study of shear strength in continuous reinforced concrete beams with and without shear reinforcement

2020 ◽  
Vol 220 ◽  
pp. 110967
Author(s):  
Andrea Monserrat López ◽  
Pedro Fco. Miguel Sosa ◽  
José Luis Bonet Senach ◽  
Miguel Ángel Fernández Prada
Keyword(s):  
Experimental Study ◽  
Shear Strength ◽  
Reinforced Concrete ◽  
Concrete Beams ◽  
Reinforced Concrete Beams ◽  
Shear Reinforcement

scholarly journals Influence of coarse aggregate on the shear strength of reinforced concrete beams

2020 ◽  
Author(s):  
◽  
Hoosen Ahmed Jajbhay
Keyword(s):  
Shear Strength ◽  
Reinforced Concrete ◽  
Concrete Beam ◽  
Coarse Aggregate ◽  
Concrete Beams ◽  
Shear Capacity ◽  
Reinforced Concrete Beams ◽  
Shear Reinforcement ◽  
Shear Transfer ◽  
Coarse Aggregates

Research to accurately predict the shear capacity of reinforced concrete beams without shear reinforcement has been ongoing since the early 20th century. Aggregate interlock of the coarse aggregates at the shear crack interface is one of the internal mechanisms of shear transfer and a major contributor to the shear capacity of slender beams. It is plausible, therefore, to investigate if the coarse aggregate itself influences the shear capacity of a concrete beam. The influence of the type of coarse aggregate on the shear capacity of beams without shear reinforcement was investigated in this study. From the literature study an understanding of the properties of coarse aggregates was gained, the internal mechanisms of shear transfer in reinforced concrete beams without shear reinforcement were determined, and the parameters influencing shear strength were identified. Based on this information an experimental program was designed. Eighteen reinforced concrete beams without shear reinforcement were cast. The beams were cast from three different types of coarse aggregates commonly used in the Durban area, i.e., dolerite, quartzite and tillite. For each type of coarse aggregate two variations were tested, i.e., 13 mm and 19 mm maximum aggregate sizes. For each size of coarse aggregate, three concrete strengths were tested. The beams were loaded in a beam press, by applying an increasing point load offset from midspan to induce cracking on the shorter side, until shear failure of the beam occurred. For the three concrete strengths, beams cast from dolerite had the highest shear capacity while beams cast from tillite had less shear capacity than beams cast from quartzite coarse aggregate. Furthermore, beams cast from 13 mm maximum size coarse aggregate had higher shear capacity than beams cast from 19 mm aggregate. The conclusion may be drawn that the type and size of coarse aggregate does influence the shear strength of a reinforced concrete beam without shear reinforcement.

Prediction of shear strength of reinforced concrete beams without shear reinforcement considering bond action of longitudinal reinforcements

2017 ◽  
Vol 21 (1) ◽  
pp. 30-45 ◽  
Author(s):  
Hyeong-Gook Kim ◽  
Chan-Yu Jeong ◽  
Min-Jun Kim ◽  
Young-Jun Lee ◽  
Jung-Han Park ◽  
...  
Keyword(s):  
Shear Strength ◽  
Reinforced Concrete ◽  
Concrete Beams ◽  
Reinforced Concrete Beams ◽  
Shear Reinforcement

scholarly journals THE SHEAR STRENGTH OF REINFORCED CONCRETE BEAMS WITHOUT SHEAR REINFORCEMENT

2015 ◽  
Vol XXXII (4/2015) ◽  
pp. 447-457 ◽  
Author(s):  
Pavlo VEGERA ◽  
Roman KHMIL ◽  
Zinoviy BLIKHARSKIY
Keyword(s):  
Shear Strength ◽  
Reinforced Concrete ◽  
Concrete Beams ◽  
Reinforced Concrete Beams ◽  
Shear Reinforcement

scholarly journals Influence of Steel Fiber on the Shear Strength of a Concrete Beam

2018 ◽  
Vol 4 (7) ◽  
pp. 1501 ◽  
Author(s):  
Ali Ammar Hameed ◽  
Mohannad Husain Al-Sherrawi
Keyword(s):  
Shear Strength ◽  
Reinforced Concrete ◽  
Concrete Beam ◽  
Shear Failure ◽  
Steel Fiber ◽  
Concrete Beams ◽  
Shear Capacity ◽  
Steel Fibers ◽  
Reinforced Concrete Beams ◽  
Shear Reinforcement

The shear failure in a concrete beam is a brittle type of failure. The addition of steel fibers in a plain concrete mix helps to bridge and restrict the cracks formed in the brittle concrete under applied loads, and enhances the ductility of the concrete. In this research an attempt was made to investigate the behavior and the ultimate shear strength of hooked end steel fiber reinforced concrete beams without traditional shear reinforcement. Four simply-supported reinforced concrete beams with a shear span-to-depth ratio of about 3.0 were tested under two-point loading up to failure. Steel fibers volumetric fractions that used were 0.0, 0.5, 0.75 and 1.0%. Test results indicated that using 1.0% volume fraction of hooked steel fiber led to exclude shear failure and enhanced the use of steel fibers as shear reinforcement in concrete beams. The results also showed that a concrete beam with hooked steel fiber provided higher post-flexural-cracking stiffness, an increase in the shear capacity and energy absorption and an increase in the maximum concrete and steel reinforcement strains.

scholarly journals SHEAR STRENGTH OF REINFORCED CONCRETE BEAMS WITH A LARGE AMOUNT OF SHEAR REINFORCEMENT

2013 ◽  
Vol 69 (2) ◽  
pp. 192-206 ◽  
Author(s):  
Junichi SAKAGUCHI ◽  
Satoshi TSUCHIYA ◽  
Tadatomo WATANABE ◽  
Shigehiko SAITO ◽  
Takeshi MAKI
Keyword(s):  
Shear Strength ◽  
Reinforced Concrete ◽  
Concrete Beams ◽  
Reinforced Concrete Beams ◽  
Shear Reinforcement
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