Repozytorium publikacji - Politechnika Gdańska

The objective of the present paper is to identify experimentally and theoretically differing failure mechanisms in reinforced concrete beams subjected to four-point bending for a separate variation of the depth and length at the constant thickness. Experiments were performed on reinforced concrete beams under four-point bending. Different failure mechanisms included steel yielding, diagonal tension or shear- compression depending upon the ratio of the shear to the beam depth a/D. The shear strength of beams evidently decreased with increasing a/D-ratio. The experimental results were numerically simulated using two-dimensional finite element analyses under plane stress conditions, based on a coupled elasto-plastic- damage constitutive model for concrete that was enhanced by non-locality in the softening regime. The numerical calculation results satisfactorily captured both the experimental shear strength and failure mechanisms.

Autorzy

• dr inż. Jan Suchorzewski link otwiera się w nowej karcie ,
• dr hab. inż. Ireneusz Marzec link otwiera się w nowej karcie ,
• dr hab. inż. Ewelina Korol link otwiera się w nowej karcie ,
• prof. dr hab. inż. Andrzej Tejchman-Konarzewski link otwiera się w nowej karcie