| 摘要 |
A steel box girder with an arbitrary shaped opening of an abdomen is provided to maintain rigidity of the member while reducing member volume of the abdomen of the girder by forming a plurality of openings on the abdomen. A steel structure bridge and an overpass are manufactured with a steel box girder to support load caused from a bottom plate. A plurality of openings are formed on an abdomen by cutting abdomen sheets according to uniform waveforms and placing the abdomen sheets to be crossed. Accessories are installed to the various shapes according to the plurality of abdomen openings. Working spaces are obtained and inner maintenance facilities are reduced. |
