Analysis and design of prestressed concrete box girder bridge. T or I-girder bridges are the most common example under this category and are very popular because of their simple geometry, low fabrication cost, easy erection or casting and smaller dead loads. PRESTRESSED CONCRETE GIRDER BRIDGE DESIGN Prepared. The second box pertains to temporary bridges and is not applicable to this example. A box girder bridge is a bridge in which the main beams comprise girders in the shape of a hollow box. The box girder normally comprises either prestressed concrete, structural steel, or a composite of steel and reinforced concrete. Fifty-one people were killed in these failures, leading in the UK to the formation of the Merrison Committee 1 and considerable investment in new research into steel box girder behaviour. Most of the bridges still under construction at this time were delayed for investigation of the basic design principle.
The example bridge has a two-cell box girder with the depth varying parabolically from 16 ft at the piers to 7 ft at mid span and abutments. A computer program for the design and analysis of a prestressed concrete box girder bridge built by the Cantilever method is presented.
Computerized Structural Design And Analysis Of Continuous Prestressed Concrete Box-girder Bridges Built By Cantilever Method Of Construction