Orthotropic deck plate bolt welding joint and external wide splice plate

Abstract

The invention discloses an orthotropic deck plate bolt welding joint and an external wide splice plate. The external wide splice plate comprises inside splice plates and outside splice plates, whereinthe inside splice plates are fixed onto the inner side of a U rib web plate, the outside splice plates are fixed onto the outer side of the U rib web plate, and the U rib web plate is provided with afirst side, a flat plate and a second side. The inside splice plates are fixedly arranged on the inner side of the first side and the inner side of the second side, the outside splice plates are fixedly arranged on the outer side of the first side and the outer side of the second side, the upper edges, the front end faces and the rear end faces of the inside splice plates are flush with those ofthe outside splice plates, and the lower edges of the outside splice plates are not lower than those of the flat plate of the U rib web plate. The wheel load stress of the lower edges of the splice plates is reduced, and the anti-fatigue performance of the structure detail of the bolt welding joint is improved.

Description

technical field [0001] The invention relates to a bolted welded joint of an orthotropic bridge deck and an outer-width spliced ​​plate, belonging to the field of bolted welded joints. Background technique [0002] The longitudinal butt joint of U-rib is one of the fatigue vulnerable parts of orthotropic deck deck [1,2] In 2007, the Japanese Steel Structure Commission’s Investigation and Research Subcommittee of Thick Plate Welded Joints made statistics on the fatigue cracks of the steel deck steel bridges of the Hanshin Expressway and the Capital Expressway, and found that the butt joints of longitudinal ribs accounted for a certain proportion of the total number of cracks [3] . The U-rib butt joint of the steel box girder face plate in the early days was often welded. Because the welding quality is not easy to guarantee, many bridges have serious fatigue cracking problems at this weld. [3,4] . [0003] Literature [3] believes that the best way to solve the fatigue proble...

AI Technical Summary

Problems solved by technology

Literature [10] introduced the test results of three reinforcement methods such as L-shaped angle steel splicing plates for U-rib welded joint fatigue crack reinforcement, and gave the reinforcement concept of L-shaped angle steel, but not for bolted U-rib joints.

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