System for construction of composite U shaped reinforced girders bridge deck and methods thereof
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United States of America Patent
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Jul 7, 2020
Grant Date -
Oct 17, 2019
app pub date -
Jun 22, 2018
filing date -
Apr 11, 2018
priority date (Note) -
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Abstract
A composite bridge deck including U shaped reinforced concrete and steel girders, and construction methods thereof. The bridge deck consists of a plurality of steel main girders with unsymmetrical top flange, the plurality of cross girders being connected above bottom flange of main girders and U shaped RCC girder comprising of concrete flange above main girder, web and deck slab above cross girder. Inspection path/crash barrier provided for Rail/Road. This bridge deck is adoptable up to 3 Tracks/four lane Roads. In Cast in situ construction, main girders are placed over supports. Cross girders are connected and concreted. In precast construction, main girder with top slab is precast and placed over supports. Two or more cross girders with precast slab are connected to web of main girder. Concrete web portion is cast in situ.
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