ICE BREAKING STRUCTURE FOR INTERMEDIATE BRIDGE PIER Russian patent published in 2005 - IPC

FIELD: bridge building, particularly for reconstruction and repairing piers of road bridges crossing rivers, boggy flood-plain lands and ravines.

SUBSTANCE: ice-breaking structure comprises upper pier part rigidly connected to cross-bar supporting span structure. Upper pier part is installed in ice-breaking part body made of concrete filler enclosed by shell. Ice-breaking part is supported by foundation mat and creates the single monolithic structure with the mat. Ice-breaking part is provided with shell composed of rectangular part and two end triangular parts connected to rectangular part by bolt connections. Shell is made as integral structure along ice-breaking part height. Shell is formed of metal sheets mating to ice-breaking part outline and air-tightly connected one to another by welding. Outer surfaces of metal sheets are covered with anticorrosive coating. Shell is provided with frames and keelsons made of angle members rigidly connected one to another by inner shoulders of angle members to form rectangular grid welded to shell. Outer shoulders of frame and keelson angle members are embedded in concrete filler. Ice-breaking part top is provided with weir screen made of polymer cement mix.

EFFECT: increased service life, improved crack-resistance and strength, reduced labor inputs and material consumption for pier repair and reconstruction.

4 dwg