scholarly journals Evaluation of Shear Effect on Deflection of RC Beams

2021 ◽  
Vol 11 (16) ◽  
pp. 7690
Author(s):  
Sang-Woo Kim ◽  
Dong-Seok Han ◽  
Kil-Hee Kim
Keyword(s):  
Reinforced Concrete ◽  
Shear Capacity ◽  
Moment Of Inertia ◽  
Experimental Results ◽  
Shear Effect ◽  
Rc Beams ◽  
Shear Deformations ◽  
Simply Supported ◽  
Effective Moment ◽  
Effective Moment Of Inertia

This study evaluates the effect of shear on the deflection of reinforced concrete (RC) beams subjected to combined bending and shear. A total of nine simply supported beams were manufactured with the shear span-to-depth ratio, tension steel ratio, and shear capacity ratio as test variables. The experimental results were used to evaluate the effect of shear on the deflection by separating them into flexural and shear deformations. The theoretical deflection of the specimens was calculated using the effective moment of inertia equation recommended by ACI 318-19 based on the curvature relationships and experimental results of the flexure critical beams. By comparing the experimental and analytical results, it was revealed that the deflection obtained using the ACI equation underestimated the experimental results by up to about 1.6 times when the shear effect was large.

scholarly journals Explicit expression for effective moment of inertia of RC beams

2015 ◽  
Vol 12 (3) ◽  
pp. 542-560 ◽  
Author(s):  
K.A. Patel ◽  
A. Bhardwaj ◽  
S. Chaudhary ◽  
A.K. Nagpal
Keyword(s):  
Explicit Expression ◽  
Moment Of Inertia ◽  
Rc Beams ◽  
Effective Moment ◽  
Effective Moment Of Inertia

scholarly journals Numerical Analysis of Corrosion Reinforcements in Fibrous Concrete Beams

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Faten Y. Taqi ◽  
Mohammed A. Mashrei ◽  
Hayder M. Oleiwi
Keyword(s):  
Reinforced Concrete ◽  
Steel Fiber ◽  
Shear Capacity ◽  
Fiber Reinforced Concrete ◽  
Experimental Results ◽  
Rc Beams ◽  
Steel Fiber Reinforced Concrete ◽  
Steel Bar ◽  
Fibrous Concrete ◽  
Shear Reinforcements

Abstract This paper offers a finite element method (FEM) to simulate the behavior of steel fiber reinforced concrete (SFRC) beams with corrosion of the longitudinal reinforcement using the ABAQUS package. This work was undertaken with the concrete damaged plasticity model (CDP). The expansion of corrosion product was utilized to represent the steel-concrete boundary to study the behavior of SFRC beams. Three beams with three volume fractions of steel fiber (0.8 %, 1.2 %, and 1.8 %) and three reinforced concrete (RC) beams with and without stirrups were created and tested under four-point loading to assess the shear capacity of beams. Corrosion of rebars at one of the RC beams that does not contain shear reinforcements will be studied. The crack patterns and load deflections of these beams were compared with experimental results found by the authors. The conclusions of this analysis will be valuable in considering the structural behavior of SFRC structures with uniform steel bar corrosion using FEM. Analytical results showed that the suggested model is qualified in better simulation and in accuracy of numerical and experimental results. The differences between analytical and experimental results were less than 8 % for load carrying capacity and 14 % for deflection; these differences are also satisfactory within the limits of the engineering conclusion.

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