Stiffening-U-rib both-side welding structure of orthotropic stiffening plate

Abstract

The invention discloses a stiffening-U-rib both-side welding structure of an orthotropic stiffening plate. A stiffening U rib is connected with a steel panel through both-side welding of a first fillet welding seam and a first fillet welding seam, and the stiffening U rib is connected with the steel panel through both-side welding of a second fillet welding seam and a second fillet welding seam. Outer fillet welding seams of the first fillet welding seams and the second fillet welding seams between the stiffening U rib and the steel panel are main, and inner fillet welding seams of the first fillet welding seams and the second fillet welding seams between the stiffening U rib and the steel panel are auxiliary. The outer fillet welding seams of the first fillet welding seams and the second fillet welding seams between the stiffening U rib and the steel panel are provided with grooves, and the inner fillet welding seams of the first fillet welding seams and the second fillet welding seams are not provided with grooves. Construction is simple, and application is convenient. The stress performance of the welding seam and the welding-seam portions of the steel panel and the U rib of the orthotropic steel plate structure is improved, the welding strength between the U rib and a top plate is improved, and the fatigue resistance of the local welded portions of the wheel-loaded lower steel panel and the U rib of an automobile and an aircraft is improved.

Description

technical field [0001] The invention belongs to the field of steel structure manufacturing, and more specifically relates to a stiffened U-rib double-sided welded structure of an orthotropic stiffened plate, which is suitable for bridge engineering and naval engineering. Background technique [0002] Orthotropic steel bridge deck is an important structural form of large and medium-span steel bridge deck systems at present, because of its light weight, large ultimate bearing capacity, wide application range, short construction period, small beam height, and beautiful appearance And other characteristics, it has been favored by bridge designers in various countries, and its application has become a symbol to measure the design and manufacturing level of a country's steel bridge. However, with the increase of traffic flow, especially the increase of heavy vehicles and overloaded vehicles, the fatigue problem has become increasingly prominent. The survey results show that a larg...

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Problems solved by technology

[0003] Due to the requirements of the traditional steel structure welding technology on the operating space, the space between the inner side of the U-rib and the roof of the orthotropic bridge deck is too small to weld, so only one-sided welding on the outer side of the U-rib can be used.

The roof and the single-side wall of the U-rib are equivalent to a T-shaped joint. The single-side welding on the outer side of the U-rib results in a natural gap on the unwelded inner side. There is eccentricity, so the axial force of the U-rib side plate is bound to generate additional bending stress on the panel and the U-rib side plate

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