The results of analytical investigations are presented supporting the disturbed stress field model as a viable conceptual model for describing the behavior of cracked reinforced concrete elements. ...

Disturbed Stress Field Model for Reinforced Concrete: Validation

A strain-based plastic viscous-damage model for massive concrete structures

The aims of this research were to develop a simple method for the design of fiber-reinforced polymer (FRP)-reinforced beams and to determine if a common approach for steel and FRP-reinforced members is possible. A model is presented for calculating the concrete contribution to shear strength of reinforced concrete beams. The applicability of the model is supported by comparing the computed shear strengths with the experimental strengths of 370 specimens. The shear strength equation developed from the model is simplified to yield a design equation applicable for both steel and FRP-reinforced beams. The design equation is demonstrated to provide conservative results across the range of variables known to affect shear strength.

Concrete shear strength: another perspective

The earliest applications of the finite element method to concrete structures included crack modeling [1–3]. Such modeling, then and now, can be completely characterized by two essential elements. These are the manner of inclusion of a crack in the finite element mesh, and the criterion for crack instability and direction of growth.

A. C. Scordelis

Papers

Shear Strength of Reinforced Concrete Beams