Strength and Ductility Performance of GFRP Laminated RC Beams with Discrete Steel Fibres

2022 ◽  
pp. 12-28
Author(s):  
S. Syed Ibrahim ◽  
S. Kandasamy ◽  
S. Pradeepkumar ◽  
R. Subashchandrabose
Keyword(s):  
Rc Beams ◽  
Steel Fibres ◽  
Strength And Ductility

Effect of Steel Fibres on Flexural Toughness of Concrete and RC Beams

2021 ◽  
Author(s):  
Fuat Köksal ◽  
Kuppala Srinivasa Rao ◽  
Ziyafeddin Babayev ◽  
Mehmet Kaya
Keyword(s):  
Rc Beams ◽  
Steel Fibres ◽  
Flexural Toughness

Behavior of Different Corrosion Ratio RC Beams under Fatigue and Monotonic Loads

2010 ◽  
Vol 163-167 ◽  
pp. 3074-3078
Author(s):  
Lei Wang ◽  
Ai Ping Yu ◽  
Bao Chen Liu
Keyword(s):  
Ultimate Load ◽  
Fatigue Loading ◽  
Concrete Cover ◽  
Reinforced Concrete Beams ◽  
Flexural Stiffness ◽  
Rc Beams ◽  
Reinforced Beams ◽  
Monotonic Loads ◽  
The Impact ◽  
Strength And Ductility

This paper present results and discussions on an experiment study on the impact of corrosion ratio to the RC beams under fatigue and monotonic loads. Seven reinforced beams with the same steel type, concrete cover, steel diameter and ratio were test. The effect of corrosion ratio on flexural stiffness of these RC beams was discussed. Based on fatigue and monotonic test for these beams, the most investigated parameters in this experimental study were distortion, stress distribution, ultimate load of corroded reinforced concrete beams. The results indicate that the effect of corrosion ratio on flexural stiffness of RC beams is very obviously, curvatures of corroded beams increase monotonically with degree of corrosion. Fatigue loading has great impact on the performance of corroded RC beams; it can reduce the ultimate strength and ductility of the beams significantly as corrosion ratio increase.

The effect of alkali–silica reaction on strength and ductility analyses of RC beams

2014 ◽  
Vol 66 (15) ◽  
pp. 751-760 ◽  
Author(s):  
Saeid Hajighasemali ◽  
Aliakbar Ramezanianpour ◽  
Mohammadhossein Kashefizadeh
Keyword(s):  
Alkali Silica Reaction ◽  
Rc Beams ◽  
Strength And Ductility

Flexural ductility of reinforced concrete beams with lap-spliced bars

2014 ◽  
Vol 41 (7) ◽  
pp. 594-604 ◽  
Author(s):  
Mehrollah Rakhshanimehr ◽  
M. Reza Esfahani ◽  
M. Reza Kianoush ◽  
B. Ali Mohammadzadeh ◽  
S. Roohollah Mousavi
Keyword(s):  
Reinforced Concrete ◽  
Bond Strength ◽  
Concrete Beams ◽  
Concrete Strength ◽  
Reinforced Concrete Beams ◽  
Transverse Reinforcement ◽  
Rc Beams ◽  
Flexural Ductility ◽  
Ductility Ratio ◽  
Strength And Ductility

In this paper, the flexural ductility of lap-spliced reinforced concrete (RC) beams is experimentally investigated. Twenty-four specimens were designed and manufactured for laboratory experiments. Concrete compressive strength, amount of transverse reinforcement over the splice length, and the diameter of longitudinal bars were selected as the main variables. The ductility of tested specimens is evaluated based on a previously defined ductility ratio. Results show that concrete strength and amount of transverse reinforcement over the splice have major effects on ductility. With an appropriate amount of transverse reinforcement, a satisfactory ductility response for different concrete strengths can be obtained. The CSA-A23.3-04 Standard provisions on bond strength and ductility of lap-spliced RC beams are evaluated and discussed. This study shows that the provisions in predicting the bond strength of lap-spliced concrete beams are adequate but may not achieve a satisfactory performance for ductility. An equation is proposed to achieve the appropriate ductility.

Retrofitting of RC Beams: A Review

2016 ◽  
Vol 857 ◽  
pp. 206-211
Author(s):  
John P. Joseph ◽  
Anitta Jose ◽  
George M. Varghese
Keyword(s):  
Tensile Strength ◽  
Construction Industry ◽  
Financial Burden ◽  
New Technology ◽  
Life Time ◽  
Rc Beams ◽  
Complete Replacement ◽  
Steel Sections ◽  
Design Loads ◽  
Strength And Ductility

Reinforced concrete (RC) is the most popular building material in the construction industry. It is a composite material in which low tensile strength and ductility of concrete are counteracted by the inclusion of reinforcement having higher tensile strength and ductility. The RC based structures are required to be replaced after their life time. Complete replacement will be a huge financial burden and might certainly be a waste of natural resources when upgrading or strengthening is an adoptable alternative. Strengthening can be achieved through retrofitting. The meaning of retrofitting is addition of new technology, components, accessories or features to older systems. Retrofitting may be required when the structure needs to be used for a purpose dealing with more load compared to design loads. It may also be used where old structures are needed to be upgraded. This paper is focused on the retrofitting of simply supported RC beams. Various materials like polymers, cementitious composites, steel sections etc. are used for retrofitting of RC beams. For the addition of these new materials to the existing ones, various techniques are used. This paper is a review of the materials and techniques used in retrofitting process of RC beams in existing buildings. The effectiveness of each material and technique is also reviewed.

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