Discussion of “Theoretical Shear Strength of Concrete Columns due to Transverse Steel” by Jang Hoon Kim and John B. Mander

2006 ◽  
Vol 132 (7) ◽  
pp. 1178-1178 ◽  
Author(s):  
Ian Feltham
Keyword(s):  
Shear Strength ◽  
Concrete Columns ◽  
Theoretical Shear Strength ◽  
Transverse Steel

scholarly journals Cyclic Shear Performance of Reinforced Concrete Columns Strengthened by External Steel Rods

2021 ◽  
Vol 13 (23) ◽  
pp. 13224
Author(s):  
Hyeong-Gook Kim ◽  
Yong-Jun Lee ◽  
Kil-Hee Kim
Keyword(s):  
Shear Strength ◽  
Reinforced Concrete ◽  
Analytical Approach ◽  
Concrete Columns ◽  
Loading Test ◽  
Rc Structures ◽  
Cyclic Shear ◽  
Flexural Failure ◽  
Shear Performance ◽  
Strengthening Method

This study presents a strengthening method for reinforced concrete (RC) columns. The proposed method, which consists of a pair of steel rods, two reverse-threaded couplers, and four corner blocks, is feasible and straightforward. A quasi-static cyclic loading test was performed on the columns externally strengthened by the steel rods. It was found that the corner blocks and the external steel rods with a low prestress level effectively confined the concrete on the compression side of plastic hinges, which eventually induced flexural failure with a ductility higher than three in the strengthened columns. In addition, an analytical approach to predict the shear strength and ultimate flexural strength of the externally strengthened columns was applied. The comparison of analytical and experimental results showed that the analytical approach provided highly accurate predictions on the maximum strength and the failure mode of the externally strengthened columns. It is expected that the application of the proposed method will improve the seismic performance of damaged or deteriorated RC structures, thereby increasing their lifespan expectancy and sustainability.

Theoretical shear strength and the onset of plasticity in nanodeformation of cubic boron nitride

2017 ◽  
Vol 39 (2) ◽  
pp. 88-98 ◽  
Author(s):  
S. N. Dub ◽  
I. A. Petrusha ◽  
V. M. Bushlya ◽  
T. Taniguchi ◽  
V. A. Belous ◽  
...  
Keyword(s):  
Shear Strength ◽  
Boron Nitride ◽  
Cubic Boron Nitride ◽  
Theoretical Shear Strength
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