SUPERIMPOSITION OF DISC AND PLATE SUPPORTING ACTION: RESULTS OF TESTS ON A BEAM

UEBERLAGERUNG VON SCHEIBEN- UND PLATTENTRAGWIRKUNG; VERSUCHSERGEBNISSE AN EINEM TRAEGER

IN NORMAL CROSS SECTIONS OF PRESTRESSED CONCRETE BRIDGES THE TRANSVERSE SHEAR IN THE WEBS AND THE TRANSVERSE BENDING INTRODUCED FROM THE CARRIAGEWAY SLAB ARE SUPERIMPOSED. THE OBJECT OF THE PROJECT WAS TO DETERMINE WHETHER THE TRANSVERSE SLOTS IN THE SHEAR REINFORCEMENT AND THE REINFORCEMENT FOR THE TRANSVERSE BENDING COULD BE CONSIDERED TOGETHER. TESTS WERE CARRIED OUT ON AN 8.5 M LONG PRESTRESSED CONCRETE BEAM HAVING AN I CROSS SECTION TO DETERMINE THE SHEAR BEARING CAPACITY OF THE WEB WHEN TRANSVERSE BENDING IS SUPERIMPOSED.