A method for assembling U and V rib embedding sections of bridge decks with high and large cross-sections

Abstract

The invention discloses a high and large section bridge deck slab U and V rib joining section assembling method. A tool comprises a bracket where a U and V rib jointing section is placed, opening adjusting bolts, a lead screw jacking system, a vertical rod, a leveling base and other elements. During working, U and V ribs are placed on the bracket, a jacking system nut is rotated to enable the bracket to slowly ascend to the jointing assembly position, then the opening adjusting nuts are utilized for accurately adjusting the jointing section position, spot welding and fixing are carried out after accurate positioning, and the next working procedure is carried out; the leveling base and the vertical rod are connected in an angle-adjustable mode, so that assembly of U and V rib jointing sections at different angle inclined bottom plate positions inside a box body is achieved. The tool is simple in structure, the operation method is simple and fast, the jointing section assembling precision is effectively controlled, and the whole bridge deck slab U and V rib overall straightness is improved, so that the bridge deck slab anti-fatigue performance is improved, and the working efficiency is greatly improved.

Description

technical field [0001] The invention relates to a method for assembling the U and V rib embedding sections of a bridge deck with a high and large cross-section, which is mainly used for precise in-position adjustment during the assembly process of the U and V rib embedding sections of the steel box girder bridge deck unit, and belongs to bridge steel structure technology field. Background technique [0002] According to the analysis of many actual cases in China, under the influence of continuous dynamic load effect and fatigue damage of steel box structure bridges, cracks occur at the U and V ribs of the bridge deck, which affects the service life of the entire bridge. At present, the steel box structure bridge industry is also jointly exploring a breakthrough to overcome this difficulty. [0003] During the erection of the bridge position and the welding construction of the ring joints, the construction unit often uses the method of manual lifting when assembling the U an...

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Problems solved by technology

[0003] During the erection of the bridge position and the welding construction of the ring joints, the construction unit often uses the method of manual lifting when assembling the U and V rib embedding sections of the high and large cross-section steel box girder bridge deck, and the U and V rib embedding of the bridge deck The assembly quality of the section cannot meet the quality requirements of the U and V ribs of the orthotropic bridge deck, which will directly affect the fatigue resistance of the bridge deck and greatly reduce the service life of the entire bridge

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