3 results about "Wide bridge" patented technology

The utility model discloses a stress structure device of big cantilever double width ultra wide bridge middle connection becomes whole, it is arranged between two bridges, and every bridge includes box girder and the bridge deck of box girder top, and the inside of every box girder has web, and the bottom of bridge deck has a plurality of stiffening half beam, and every stiffening half beam extends horizontally, and the stiffening half beam on two bridge decks is opposite each other and is connected through post-cast strip and forms a plurality of stiffening main girder, and every stiffening main girder extends horizontally, and a plurality of stiffening main girders are arranged along the length direction of bridge, and through the setting of a plurality of steel truss, and cooperate every steel truss with two webs and corresponding stiffening main girder fixed connection, and every steel truss can participate in bridge deck collaborative stress, and reduce the stress of bridge deck in the middle, can increase the length of bridge deck connection in the middle, and, through the setting of maintenance access, facilitate subsequent structure detection and maintenance, bring the convenience for use, can be widely used.

The utility model discloses a novel wide bridge connecting expansion device, relate to road traffic technical field, including new abutment, integration layer, bridge deck pavement and C50 steel fiber reinforced concrete, the expansion gap is left between new abutment and old abutment, the top of new abutment and old abutment is provided with integration layer, and the top of integration layer is provided with bridge deck pavement, the top of new abutment has been irrigated with C50 steel fiber reinforced concrete, and C50 steel fiber reinforced concrete inside is provided with reinforced skeleton, the anchor bar is buried on the reinforced skeleton, this device has and through the steel fiber of C50 steel fiber reinforced concrete inside random distribution can effectively hinder the expansion of concrete internal microcrack and the formation of macrocrack, has improved the tensile, bending, impact and fatigue resistance of concrete significantly, has better ductility, and through the water guide pipe can play the water guide effect to the position of waterstop, and it is convenient for drainage.

The utility model discloses a variable cross section multi -box chamber box girder structure, including bridge body, first end part and second end part, from the first end plate along the direction of second end part's width size of bridge surface gradually reduces the setting, a plurality of box chamber structures are arranged between first end part and second end part, and at least partial box chamber structure is arranged along the center position symmetry of first end part and second end part, first abutment is arranged on first end part, and second abutment is arranged on second end part, the bridge body is supported with ground through first abutment and second abutment, the distance from first end part to second end part is less than the width of second end part, the structure of this scheme can not only guarantee the drainage of wide bridge body structure, but also can guarantee the stability of whole, can also reduce the construction difficulty of bridge body simultaneously.