E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
E01D15/00—Movable or portable bridges; Floating bridges
E01D15/10—Travelling bridges, i.e. roller bridges; Sliding bridges; Rotary cylinder bridges, i.e. rotating about longitudinal axis to invert and raise the road
Landscapes
Engineering & Computer Science
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Architecture
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Civil Engineering
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Structural Engineering
(AREA)
Carriers, Traveling Bodies, And Overhead Traveling Cranes
(AREA)
Systeme pour l'obstruction d'un passage d'entree a l'aide d'un vantail roulant sur une surface plane, comprenant des moyens de guidage fin de course du vantail