Bracing construction and method at steel bridge deck slab web plate position
A technology of steel bridge deck and steel web, applied in bridges, bridge construction, bridge parts, etc., can solve the problems of concentrated welds, many construction procedures, and large amount of steel, so as to improve rigidity, facilitate construction, and prolong life. Effect
Active Publication Date: 2014-11-05
TIANJIN MUNICIPAL ENG DESIGN & RES INST
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Problems solved by technology
The main disadvantage of method ② is that in order to avoid the concentration of welds, the range of local thickening should not be too small, resulting in a large amount of steel and many construction procedures
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[0018] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0019] figure 1 This is a schematic structural diagram of the longitudinal stiffeners at the web position of steel bridge decks that are commonly used today. Because of the large distance between the U-shaped stiffeners 2 and the steel web 4, the rigidity of this position is insufficient and some defects occur. figure 2 It is a structural schematic diagram of the present invention, as shown in the figure: the present invention is a stiffening structure at the web position of a steel bridge deck, including a steel bridge deck 1, a U-shaped stiffener 2, a flat steel plate stiffener 3 and a steel web 4. The U-shaped stiffener 2 and the flat steel plate stiffener 3 together form a mixed stiffening structure of the steel bridge deck 1 at the position of the steel web 4 . In order to improve the anti-fatigue performance of the structure, a K-sha...
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The invention belongs to the bridge structure technical field and relates to a bracing construction at steel bridge deck slab web plate position. The bracing construction at the steel bridge deck slab web plate position comprises a steel bridge deck slab 1, a plurality of U-shaped bracing ribs 2 and a steel web plate 4, wherein the plurality of U-shaped bracing ribs 2 are symmetrically distributed on both sides of the steel web plate 4. The bracing construction at the steel bridge deck slab web plate position further comprises two smooth plate bracing ribs 3 which are symmetrically arranged on both sides of the steel web plate 4. The smooth plate bracing ribs 3 are arranged between the steel web plate 4 and the same sided U-shaped bracing ribs 2, a connector of the U-shaped bracing ribs 2 and the steel bridge deck slab 1 adopts single groove part penetration welding, weld penetration depth is not less than eight times of the thickness of the steel bridge deck slab 1, and a connector of the of the smooth plate bracing ribs 3and the steel bridge deck slab 1 adopts K-shaped groove penetration welding. Meanwhile, the invention provides a bracing method at the steel bridge deck slab web plate position. The bracing construction and method at the steel bridge deck slab web plate position improves stiffness of the steel bridge deck, prolongs service life of the steel bridge deck slab web plate position of the steel bridge deck, and is convenient and fast to construct.
Description
technical field [0001] The invention relates to a stiffening structure of a steel bridge deck, in particular to a stiffening structure of a steel bridge deck at the web position of a steel box girder. Background technique [0002] Steel box girders with orthotropic plates have been widely used both at home and abroad. Orthotropic slabs are composed of steel bridge decks, longitudinal stiffeners, and transverse stiffeners. The structure is complex, the number of welds is large, and the force is relatively unfavorable due to repeated loads of automobile wheels. Some orthotropic plate steel box girders in my country have suffered from various diseases, which are specifically manifested in: ①Steel bridge deck pavement has different degrees of cracks and even potholes, especially regular cracks along the bridge direction often appear near the steel web; ② Fatigue fracture of welds or steel plates at local locations, especially at the junction of steel web and steel bridge deck. ...
Claims
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IPC IPC(8): E01D19/12E01D21/00
Inventor 刘旭锴戴少雄谢斌曹景刘志才冯希训李强骆春雨赵传亮乔建刚
Owner TIANJIN MUNICIPAL ENG DESIGN & RES INST