Influence of transverse reinforcement on elastic shear stiffness of cracked concrete elements

2007 ◽  
Vol 29 (8) ◽  
pp. 1798-1807 ◽  
Author(s):  
Jang Hoon Kim ◽  
John B. Mander
Keyword(s):  
Shear Stiffness ◽  
Transverse Reinforcement ◽  
Cracked Concrete ◽  
Concrete Elements ◽  
Elastic Shear

scholarly journals Effective elastic shear stiffness of a periodic fibrous composite with non-uniform imperfect contact between the matrix and the fibers

2014 ◽  
Vol 51 (6) ◽  
pp. 1253-1262 ◽  
Author(s):  
Juan C. López-Realpozo ◽  
Reinaldo Rodríguez-Ramos ◽  
Raúl Guinovart-Díaz ◽  
Julián Bravo-Castillero ◽  
J.A. Otero ◽  
...  
Keyword(s):  
Fibrous Composite ◽  
Shear Stiffness ◽  
Imperfect Contact ◽  
The Matrix ◽  
Elastic Shear

Consolequip Steering Bogie for the Société Nationale Industrielle et Minière ‘SNIM’ de la Mauritanie

2000 ◽  
Author(s):  
Varoujan Khatchadourian
Keyword(s):  
Dynamic Response ◽  
Shear Stiffness ◽  
Design Engineering ◽  
Unique Combination ◽  
Heavy Duty ◽  
Wheel Wear ◽  
Damping Characteristics ◽  
Stiffness Characteristics ◽  
Hunting Stability ◽  
Elastic Shear

Abstract This paper describes in detail the design, engineering and testing conducted for 260 self-steering bogies in response to a bid from SNIM (Société Nationale Industrielle et Minière), in Mauritania, Africa. Severe environmental conditions in Mauritania, caused by the presence of sand, contribute to accelerated wheel tread wear. This in combination with asymmetric wheel wear typically experienced with the standard three-piece bogie, results in poor wheel life. A steering bogie improves wheel life by allowing the axles to self-align, thus reducing asymmetric wheel wear occurrence. Bogie behavior is explained by comparing the stiffness characteristics of self-steering bogies and standard three-piece bogies. High bogie stiffness keeps a truck square as it travels on the track, thus improving its dynamic response on tangent track. Split type friction wedges are used together with heavy-duty suspension system to obtain high bogie shear stiffness and vertical damping characteristics. An elastic shear pad between the roller bearings and the side frame pedestal roof allows the axles to self-align in curves, giving the truck its self-steering characteristic. The truck design is unique as the standard AAR unit guide bracket construction point and angle were changed to provide the alignment for the unique combination of axle spacing and wheel diameter. It utilizes 1000 mm diameter wheels and a wheel base of 1800 mm. The Consolequip steering bogie has been engineered to improve dynamic response on tangent track. This is done by increasing bogie interaxle shear stiffness which increases the threshold of truck hunting. Stability tests with service worn wheels confirmed stability speed to exceed operating speeds used by SNIM network. Preliminary projections have estimated an improvement of up to 50% in wheel life by reducing asymmetric wheel wear and the number of times they are re-profiled.

scholarly journals EXPERIMENTAL STUDIES ON THE INFLUENCE OF TRANSVERSE REINFORCEMENT FOR STRENGTH OF COMPRESSED REINFORCED CONCRETE ELEMENTS

2021 ◽  
Vol 10 (4) ◽  
pp. 21-28
Author(s):  
Sergey S. MORDOVSKIY ◽  
Kamil B. SHARAFUTDINOV
Keyword(s):  
Reinforced Concrete ◽  
Bearing Capacity ◽  
Experimental Studies ◽  
Longitudinal Force ◽  
Concrete Sample ◽  
Transverse Reinforcement ◽  
Direct Factor ◽  
Rectangular Cell ◽  
Concrete Elements ◽  
Zigzag Type

The infl uence of transverse reinforcement, including indirect reinforcement, on the strength of compressed reinforced concrete elements is analyzed. This question arose in connection with the possibility of increasing the strength of short reinforced concrete elements loaded with a longitudinal force with small eccentricities within the section of the element. For such elements, the cage eff ect may appear, associated with the coeffi cient of transverse deformations, the magnitude of which is a direct factor in the destruction of the concrete sample, and the limitation of these directly aff ects the bearing capacity of the sample in the direction of increase. The infl uence of transverse reinforcement in the form of stirrups located with diff erent spacing, as well as indirect reinforcement in the form of meshes with a classical rectangular cell and meshes of the “zigzag” type is considered.

Analysis on the minimum shear strength of reinforced concrete elements without transverse reinforcement

2014 ◽  
Vol 102 (42) ◽  
pp. 231-238
Author(s):  
David Fernández-Montes ◽  
Enrique González-Valle ◽  
Elena Díaz-Heredia ◽  
Jorge Ley
Keyword(s):  
Shear Strength ◽  
Reinforced Concrete ◽  
Transverse Reinforcement ◽  
Concrete Elements

Predicting Creep and Shrinkage Effects in Cracked Concrete Elements

1994 ◽  
Vol 120 (9) ◽  
pp. 2784-2792
Author(s):  
A. S. Prasada Rao ◽  
R. Jayaraman ◽  
V. Vimalanandam ◽  
S. Sai Babu
Keyword(s):  
Cracked Concrete ◽  
Concrete Elements ◽  
Creep And Shrinkage

scholarly journals Application of Extended Finite Element Method to Cracked Concrete Elements – Numerical Aspects

2012 ◽  
Vol 58 (4) ◽  
pp. 409-431 ◽  
Author(s):  
J. Bobiński ◽  
J. Tejchman
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Extended Finite Element Method ◽  
Plain Concrete ◽  
Numerical Implementation ◽  
Extended Finite Element ◽  
Cracked Concrete ◽  
Advantages And Disadvantages ◽  
Concrete Elements ◽  
Element Method

AbstractThe paper deals with the application of the eXtended Finite Element Method (XFEM) to simulations of discrete macro-cracks in plain concrete specimens under tension, bending and shear. Fundamental relationships and basic discrete constitutive laws were described. The most important aspects of the numerical implementation were discussed. Advantages and disadvantages of the method were outlined

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