Internal transverse reinforcement configuration effect of EB/NSE-FRCM shear strengthening of RC deep beams

2019 ◽  
Vol 166 ◽  
pp. 758-772 ◽  
Author(s):  
Tadesse G. Wakjira ◽  
Usama Ebead
Keyword(s):  
Transverse Reinforcement ◽  
Deep Beams ◽  
Shear Strengthening ◽  
Rc Deep Beams ◽  
Reinforcement Configuration

scholarly journals A Review on NSM-CFRP technique using in Shear Strengthening of RC Deep Beams

2019 ◽  
Vol 12 (36) ◽  
pp. 1-17 ◽  
Author(s):  
Mohanad Hatem ◽  
Abdul Aziz Abdul Samad ◽  
Noridah Mohamad ◽  
Goh Wan Inn ◽  
Saad Abdulqader
Keyword(s):  
Deep Beams ◽  
Shear Strengthening ◽  
Rc Deep Beams

SHEAR BEHAVIOR OF RC BEAMS STRENGTHENED WITH DIFFERENT TYPES OF FRCM: EFFECT OF STIRRUPS’ CONFIGURATION

2019 ◽  
Vol 6 (1) ◽  
Author(s):  
Tadesse Wakjira ◽  
Usama Ebead
Keyword(s):  
Load Capacity ◽  
Shear Behavior ◽  
Shear Capacity ◽  
Rc Beams ◽  
Deep Beams ◽  
Shear Strengthening ◽  
Test Variable ◽  
Rc Deep Beams ◽  
Different Types ◽  
Primary Test

Fabric-reinforced cementitious matrix, (FRCM) system has shown to be promising for the strengthening of reinforced concrete (RC) beams. However, the available experimental investigation on the shear strengthening efficacy of FRCM system is limited, particularly for deep beams. Moreover, to the authors' knowledge, no literature is available on the effect of the stirrups' configuration relative to the FRCM strips on the shear capacity of FRCM-strengthened beams. Studying this effect will aid in a better understanding of the FRCM/stirrups interaction. Thus, in this paper the experimental study on the shear behavior of RC deep beams strengthened in shear using FRCM system is presented. The test matrix involved two unstrengthened and six FRCM-strengthened deep beams tested under three-point bending. The primary test variable was the effect of stirrups' configuration relative to the FRCM strips. The other test variable includes the effect of different types of FRCM fabric (made of carbon, glass, and polyparaphenylene benzobisoxazole, PBO). Experimental results demonstrated an effective application of the FRCM in improving the load capacities of RC deep beams, up to 40.3% increase in the load capacity was achieved.

Shear strengthening of RC deep beams with cement-based composites

2018 ◽  
Vol 172 ◽  
pp. 929-937 ◽  
Author(s):  
Rizwan Azam ◽  
Khaled Soudki ◽  
Jeffrey S. West ◽  
Martin Noël
Keyword(s):  
Deep Beams ◽  
Shear Strengthening ◽  
Rc Deep Beams

Effect of member depth and concrete strength on shear strength of RC deep beams without transverse reinforcement

2021 ◽  
Vol 241 ◽  
pp. 112427
Author(s):  
Ye Li ◽  
Hui Chen ◽  
Wei-Jian Yi ◽  
Fei Peng ◽  
Zhe Li ◽  
...  
Keyword(s):  
Shear Strength ◽  
Concrete Strength ◽  
Transverse Reinforcement ◽  
Deep Beams ◽  
Rc Deep Beams

Experimental investigation and strength model of RC deep beams externally bonded by CFRP

2021 ◽  
pp. 136943322110105
Author(s):  
Saeed Ahmad ◽  
Ayub Elahi ◽  
Rana Faisal Tufail ◽  
Muhammad Zahid ◽  
Saad Bin Tariq
Keyword(s):  
Shear Strength ◽  
Structural Engineering ◽  
Absorption Capacity ◽  
Design Guidelines ◽  
Test Results ◽  
Deep Beams ◽  
Shear Strengthening ◽  
Cracking Behavior ◽  
Bending Load ◽  
Rc Deep Beams

This paper presents an experimental study on shear strengthening of reinforced concrete (RC) deep beams using externally applied carbon fiber reinforced polymer (CFRP) jackets. A total of 18 RC deep beams were tested using a four-point bending load. The examined parameter included span to depth ratio with or without CFRP strengthening. CFRP strips were applied perpendicular to the probable crack pattern as observed during testing for un-strengthened beams. The properties that is cracking behavior, ultimate strength, deflection, and energy dissipation capacity of beams were evaluated and discussed. The test results showed enhancement in shear strength up to 17% with CFRP. An increase in depth of RC deep beams caused a decrease in the rate of enhancement in shear strength for CFRP strengthened beams as compared to that observed in their counterparts. The experimental test results were compared with the existing design guidelines to assess their application for RC deep beams strengthened with CFRP. A strength equation based on regression analysis was developed to predict the experimental shear strength of RC deep beams strengthened with CFRP. This study showed that the RC deep beams strengthened with CFRP can effectively be used in structural engineering applications with enhanced shear strength and energy absorption capacity.

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