STRUT-AND-TIE COMPUTER MODELLING OF REINFORCED CONCRETE BRIDGE JOINT SYSTEMS

2003 ◽  
Vol 7 (3) ◽  
pp. 463-493 ◽  
Author(s):  
NICHOLAS H. T. TO ◽  
JASON M. INGHAM ◽  
SRI SRITHARAN
Keyword(s):  
Reinforced Concrete ◽  
Computer Modelling ◽  
Concrete Bridge ◽  
Reinforced Concrete Bridge ◽  
Strut And Tie

scholarly journals Strut-and-tie computer modelling of reinforced concrete bridge portal frames

2002 ◽  
Vol 35 (3) ◽  
pp. 165-189 ◽  
Author(s):  
N. H. T. To ◽  
J.M. Ingham ◽  
S. Sritharan
Keyword(s):  
Experimental Data ◽  
Reinforced Concrete ◽  
Computer Program ◽  
Computer Modelling ◽  
Concrete Bridge ◽  
Tension Stiffening ◽  
Reinforced Concrete Bridge ◽  
Strut And Tie ◽  
Force Displacement ◽  
Stiffening Effect

Nonlinear inelastic force-displacement response envelopes of full-scale reinforced concrete bridge portal frames are predicted in this paper by representing the frame using strut-and-tie models. The nonlinear strut-and-tie analyses, which included the tension stiffening effect, were performed using the computer program Drain-2DX. Strut-and-tie analytical results were found to correlate satisfactorily with the experimental data and to provide superior prediction to that generated using conventional planar frame models.

scholarly journals Direct Strut-and-Tie Model for Reinforced Concrete Bridge Pier Cap

2016 ◽  
Vol 12 (2) ◽  
pp. 1-8 ◽  
Author(s):  
Vinayak Hemant Kumar ◽  
N.A.K Sivaa Senthil ◽  
T V Pradeep Kumar
Keyword(s):  
Shear Strength ◽  
Reinforced Concrete ◽  
Stress Distribution ◽  
Bridge Pier ◽  
Concrete Bridge ◽  
Ultimate Shear Strength ◽  
Softening Effect ◽  
Reinforced Concrete Bridge ◽  
Strut And Tie ◽  
Strut And Tie Model

Abstract A simple and direct Strut-and-Tie Model (STM) is proposed here to predict the ultimate shear strength of the reinforced concrete bridge pier cap for shear span to depth ratio of 0.4 to 2.4. The model is based on the Kupfer-Gerstle Biaxial Compression-Tension failure criterion which includes the concrete softening effect produced by the presence of transverse tensile stress. The earlier models consider the stress distribution factor for the varied stress distribution across the section by assuming it as linear function which is derived by satisfying equilibrium conditions. In this study the principal stresses have been evaluated by satisfying the compatibility condition at the time of impending failure which has been accounted for the effective area of concrete resisting tension. Also the softening effect has been included by using the formula for tensile strength of cracked concrete proposed by Belarbi and Hsu. The proposed model has been validated with 43 experimental results by author and from literature which confirm the coherency and conservativeness of the predicted results. The parametric study on ultimate shear strength is done so as to infer the relation between various abstract quantities such as compressive strain, shear capacity, span depth ratio and other material properties and get a deeper insight into the behavior of the Pier cap. Thus this paper tries to extend the practical application of Strut-and-Tie Model for reinforced concrete bridge pier cap in understanding the actual behavior of the structure on various dimensional and material parameters.

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