WORKING OUT OF PRINCIPLES AND DESIGNS FOR PREFABRICATED PRESTRESSED AND REINFORCED CONCRETE BRIDGES

ERARBEITUNG VON GRUNDLAGEN UND TYPENENTWUERFEN FUER VORGEFERTIGTE SPANN- UND STAHLBETONBRUECKEN

CONSIDERATION IS BEING GIVEN TO METHODS OF CONSTRUCTION WHICH INVOLVE PRECAST ELEMENTS SUPPLEMENTED BY CAST-IN-SITU CONCRETE, SINCE IN THESE METHODS THE NUMBER OF JOINTS IS REDUCED TO A MINIMUM. THREE TYPES OF GIRDER CROSS SECTION ARE BEING EXAMINED. THE OBJECT OF THE RESEARCH IS TO WORK OUT SPECIFICATIONS AND RECOMMENDATIONS FOR PRECAST BRIDGES IN ORDER TO PROVIDE CONSTRUCTION AUTHORITIES WITH CRITERIA FOR EVALUATING THESE STRUCTURES.