Box girder bridge

Single box girder bridge (concrete), Australia. A similar bridge on this river was fabricated ashore and pushed across its pylons.

Single box girder bridge (steel), flyover above eastern approach of the San Francisco–Oakland Bay Bridge.

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. The box is typically rectangular or trapezoidal in cross-section. Box girder bridges are commonly used for highway flyovers and for modern elevated structures of light rail transport. Although normally the box girder bridge is a form of beam bridge, box girders may also be used on cable-stayed bridges and other forms.

单词	Box girder bridge
释义	Box girder bridge 英语百科 Box girder bridge 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. The box is typically rectangular or trapezoidal in cross-section. Box girder bridges are commonly used for highway flyovers and for modern elevated structures of light rail transport. Although normally the box girder bridge is a form of beam bridge, box girders may also be used on cable-stayed bridges and other forms.
随便看	variable slow regeneration Variables,Moderator variables of perceived color variablesof perceived colour variable sonar system variable space variable space character variable space character increment variable space font variable space liquid cell variable spacing adjustment variable span wing variable specific heat variable speech control variablespeed variable speed variable speed axle generator variable speed box variable speed case variable speed chopper variable speed chopper blade variable speed clutch variable speed cone variable speed constant frequency variable speed constant frequency generator