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E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
E01D18/00—Bridges specially adapted for particular applications or functions not provided for elsewhere, e.g. aqueducts, bridges for supporting pipe-lines
Structures en béton armé et en acier, notamment pour réaliser des poutres et, en particulier, des poutres à usage de pannes ou des poutres à grande portée