A three-dimensional nonlinear FE model is developed aiming to investigate the truss-concrete stress transfer mechanism in Hybrid Steel Trussed-Concrete Beams (HSTCBs). The accuracy of the proposed finite element model is verified with reference to the results of experimental push-out tests on HSTCBs available in technical literature. Then, the developed model is used to provide a parametric analysis aimed at individuating the main geometrical and mechanical parameters influencing the load carried by the truss-concrete system in push-out tests.
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