0000000000255101
AUTHOR
R. Pucinotti
Indagine sperimentale su tralicci in acciaio di travi reticolari miste
Experimental results on the shear behaviour of the steel trusses in composite steel-concrete beams are presented. Preliminarily tensile tests have been performed on specimens reproducing different types of welded joints. Tests are addressed to investigate on the bearing capacity of the welds and on the local instability problems that can arise in the elements of the truss. A FEM model is also presented in order to reproduce the behaviour of the steel truss subjected to shear load. Moreover, simplified relations are used to obtain the ultimate load on the welds for the different type of node and simplified models based on truss behaviour are used to foresee the stiffness and the strength of …
Prove di Push-Out su travi reticolari miste
Results of push-out experimental tests on typical italian typology of hybrid steel-to-concrete beam are presented and discussed in order to provide insight on transfer mechanism between concrete and steel truss. Two specimens of a shallow beam are tested and experimental relationships between interaction force, total slip and strain in truss elements are shown; moreover, behaviour of specimens at failure is discussed.