This study was numerically focused on the non-linear behaviour of glass fibre reinforced polymer (GFRP) concrete beams with different amounts transverse reinforcement. The mid-span deflection beam cannot effectively be restricted using higher amount flexural GFRP bars, owing to their low deformability factor. So, use high reinforcement ratio is proposed decrease and crack widths. Following this...

In the present paper, computations of mixed mode stress intensity factor (SIF) variations along the crack front, and fatigue-crack-growth simulations, in cracked I-beams, considering different load cases and initial crack configurations, are carried out by employing the three-dimensional SGBEM (Symmetric Galerkin Boundary Element Method)–FEM (Finite Element Method) Alternating Method. For mode-...

The procedure of FEM calculations was presented in the paper. numerical concerned a simulation crack distribution and propagation concrete beams reinforced longitudinally without shear reinforcement. analysis obtained results showed different modes failure when span-to-depth ratio a/d = 2.5 1.8. In analyzed beams, longitudinal reinforcement mechanical properties steel bars were also changing pa...

• Increased ingress at cracks in 25 years old marine concrete. Severe corrosion connection with plastic spacers, none or negligible cracks. Corrosion the “weakest link” appears to protect remaining steel. The state of three pre-cracked concrete beams was investigated after exposure (atmospheric, tidal and submerged). influence inadequate spacers found overrule possible impact bending on reinfor...

In this paper, several transversely cracked RC beams, self-anchored in a three-point bending mode, were prepared and subjected to NaCl solution drying–wetting cycles. Based on two experimental results obtained after 15 and 30 cycles, respectively, the profiles of free chloride concentration at different sections of sound and cracked concretes were presented and analyzed. The depth of surface co...