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Evaluation of size dependent design shear strength of reinforced concrete beams without web reinforcement
Gangolu Appa Rao, S. S. Injaganeri
Published in
2011
Volume: 36
   
Issue: 3
Pages: 393 - 410
Abstract
Analytical studies on the effect of depth of beam and several parameters on the shear strength of reinforced concrete beams are reported. A large data base available has been segregated and a nonlinear regression analysis (NLRA) has been performed for developing the refined design models for both, the cracking and the ultimate shear strengths of reinforced concrete (RC) beams without web reinforcement. The shear strength of RC beams is size dependent, which needs to be evaluated and incorporated in the appropriate size effect models. The proposed models are functions of compressive strength of concrete, percentage of flexural reinforcement and depth of beam. The structural brittleness of large size beams seems to be severe compared with highly ductile small size beams at a given quantity of flexural reinforcement. The proposed models have been validated with the existing popular models as well as with the design code provisions. © 2011 Indian Academy of Sciences.
About the journal
JournalSadhana - Academy Proceedings in Engineering Sciences
ISSN02562499
Open AccessYes
Concepts (29)
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    CODE PROVISIONS
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    COMPRESSIVE STRENGTH OF CONCRETE
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    CRACKING STRENGTH
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    Design codes
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    Design models
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    FLEXURAL REINFORCEMENT
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    Large data
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    Large sizes
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    Modelling
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    Non-linear regression analysis
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    RC BEAMS
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    Reinforced concrete beams
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    Size dependent
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    SIZE EFFECT MODELS
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    Size effects
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    Small size
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    ULTIMATE SHEAR STRENGTH
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    WEB REINFORCEMENT
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    Compressive strength
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    Concrete beams and girders
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    Concrete buildings
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    Design
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    FRACTURE MECHANICS
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    Regression analysis
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    Reinforced concrete
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    Shear flow
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    Shear strength
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    User interfaces
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    Concrete reinforcements