ABSTRACT
This theoretical and experimental investigation aims at contributing to the knowledge of the ultimate limit state of metal-concrete composite beams. Flexural tests have been carried out on steel-concrete and aluminium-concrete specimens. The test results have been compared with the theoretical values based on several stress-strain relationships for all materials. The wide geometrical and mechanical range of steel-concrete specimens allows to evaluate the influence of some parameters, such as the ratio of slab thickness over section height and the amount of lateral and longitudinal reinforcements. The tests confirm the theoretical assumptions for both steel and aluminium-concrete specimens and give appropriate trends for future investigations on aluminium-concrete beams.
