CN103088753B - Bracing construction and method at steel bridge deck slab web plate position - Google Patents
Bracing construction and method at steel bridge deck slab web plate position Download PDFInfo
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- CN103088753B CN103088753B CN201310065823.8A CN201310065823A CN103088753B CN 103088753 B CN103088753 B CN 103088753B CN 201310065823 A CN201310065823 A CN 201310065823A CN 103088753 B CN103088753 B CN 103088753B
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Abstract
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
The present invention relates to a kind of stiffening construction of steel bridge deck, relate in particular to the stiffening construction of a kind of steel case web position steel bridge deck.
Background technology
Adopt the steel case beam of orthotropic plate to be all widely applied at home and abroad.Orthotropic plate is made up of steel bridge deck, longitudinal stiffener and transverse stiffener, complex structure, and weld seam quantity is many, and repeatedly bears the effect of automobile wheel load, stressed comparatively unfavorable.Having there is multiple diseases in China's part orthotropic slab case beam, is in particular in: 1. groove is even cheated in paving steel bridge deck crack in various degree, especially near normal appearance along bridge to pattern cracking steel web; 2. local location weld seam or steel plate fatigue fracture, wherein the junction of steel web and steel bridge deck is often comparatively serious.According to research, mainly steel bridge deck strain in region is excessive relevant therewith for the above-mentioned disease of steel web position.In order to prevent this type of disease, in design, considered following two kinds of methods: 1. the spacing between the 1st U-shaped stiffening rib of contiguous web and steel web is dwindled in the past; 2. the thickness of slab of local this region steel bridge deck of thickening.Method deficiency is 1., along with reducing of U-shaped stiffening rib and steel web clear distance, the welding space of steel web and steel bridge deck junction is also reducing, and welding quality is difficult to ensure; Because welding space is little, part steel work processing factory even disconnects steel bridge deck in steel web position.Method shortcoming 2. is mainly, concentrates for fear of weld seam, and the scope of local thickening can not be too small, cause steel using amount bigger than normal, and working procedure is many.
Summary of the invention
In view of the deficiency of above-mentioned hands-on approach, the object of this invention is to provide a kind of stiffening construction of steel bridge deck web position, and the construction method of this kind of stiffening construction is provided.The present invention can reduce the strain of this region steel bridge deck, can guarantee again welding space, and steel using amount province, and cost is low.To achieve these goals, the technical solution used in the present invention is:
A kind of stiffening construction of steel bridge deck web position, comprise steel bridge deck (1), multiple U-shaped stiffening rib (2) and steel web (4), each U-shaped stiffening rib (2) is symmetrically distributed in the both sides of steel web (4), described stiffening construction also comprises two plain plate stiffening ribs (3) that are arranged symmetrically in steel web (4) both sides, and plain plate stiffening rib (3) is positioned between the U-shaped stiffening rib (2) of steel web (4) and homonymy; Joint between described U-shaped stiffening rib (2) and steel bridge deck (1) adopts single groove partial penetration weld seam, and fusion penetration is not less than 0.8 times of its thickness of slab; Joint between described plain plate stiffening rib (3) and steel bridge deck (1) adopts K shape groove melt-through weld.
As preferred embodiment, described plain plate stiffening rib (3) is 150mm with the spacing of steel web (4) and U-shaped stiffening rib (2), is highly not more than 150mm.
The present invention provides a kind of method of putting more energy into of steel bridge deck web position simultaneously, between the U-shaped stiffening rib (2) of steel web (4) and its both sides, be arranged symmetrically with two plain plate stiffening ribs (3), the employing K shape groove melt-through weld between described plain plate stiffening rib (3) and steel bridge deck (1) is connected; Between U-shaped stiffening rib (2) and steel bridge deck (1), adopt single groove partial penetration weld seam to be connected, fusion penetration is not less than 0.8 times of its thickness of slab.
As preferred embodiment, the described method of putting more energy into also comprises: first steel bridge deck (1), U-shaped stiffening rib (2) and plain plate stiffening rib (3) are welded into panel one-piece parts, welding is completed by portal beam welding machine, and point twice are carried out, and first adopts CO
2gas shielded arc welding bottoming, fills 2/3 of groove, and second adopts and hides automatic welding capping, welding again after steel bridge deck (1), U-shaped stiffening rib (2) and plain plate stiffening rib (3) must fix on reversely deformed jig frame; Then panel one-piece parts and steel web (4) are assembled.
Compared with conventional art, the invention has the beneficial effects as follows:
(1) on the basis that the present invention arranges at conventional orthogonal opposite sex plate longitudinal stiffener, between steel web and U-shaped stiffening rib, increase a plain plate stiffening rib, improved the rigidity of Steel Bridge Deck, be conducive to extend the life-span of this position paving steel bridge deck;
(2) joint between plain plate stiffening rib and steel bridge deck has adopted the K shape groove melt-through weld that anti-fatigue performance is good, and reduces because the rigidity of structure increases distortion, so position Synthesis anti-fatigue performance will have a more substantial increase;
(3) plain plate stiffening rib height is not more than 150mm, has ensured that there are enough welding spaces this position, constructs convenient.
Brief description of the drawings
Fig. 1 is the structural representation of steel bridge deck web position longitudinal stiffener in conventional art;
Fig. 2 is structural representation of the present invention;
Fig. 3 is the partial enlarged drawing of Fig. 2, to show weld seam form.
In figure:
1---steel bridge deck 2U shape stiffening rib 3---plain plate stiffening rib
4---steel web 5K shape groove melt-through weld 6---single groove partial penetration weld seam
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described.
Fig. 1 is the structural representation of the steel bridge deck web position longitudinal stiffener now commonly used, because its U-shaped stiffening rib 2 is larger with the spacing of steel web 4, causes this position stiffness deficiency, occurs some diseases.Fig. 2 is structural representation of the present invention, as shown in the figure: the present invention is a kind of stiffening construction of steel bridge deck web position, comprises steel bridge deck 1, U-shaped stiffening rib 2, plain plate stiffening rib 3 and steel web 4.The mixing stiffening construction of U-shaped stiffening rib 2 and the common composition steel of plain plate stiffening rib 3 web 4 position steel bridge decks 1.In order to improve Anti-Fatigue performance, between plain plate stiffening rib 3 and steel bridge deck 1, adopt K shape groove melt-through weld 5 to be connected; Between U-shaped stiffening rib 2 and steel bridge deck 1, adopt single groove partial penetration weld seam 6 to be connected, fusion penetration is not less than 0.8 times of its thickness of slab.
When factory process, first steel bridge deck 1, U-shaped stiffening rib 2, plain plate stiffening rib 3 are welded into panel one-piece parts, welding is completed by portal beam welding machine, and point twice are carried out, and first adopts CO
2gas shielded arc welding bottoming, fills 2/3 of groove, and second adopts and hides automatic welding capping, for preventing welding deformation, and welding again after steel bridge deck 1, U-shaped stiffening rib 2, plain plate stiffening rib 3 must fix on reversely deformed jig frame; Then panel one-piece parts and steel web 4 are assembled.
Although in conjunction with figure, invention has been described above; but the present invention is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; instead of restrictive; those of ordinary skill in the art is under enlightenment of the present invention; in the situation that not departing from aim of the present invention, can also make a lot of distortion, within these all belong to protection of the present invention.
Claims (3)
1. the stiffening construction of a steel bridge deck web position, comprise steel bridge deck (1), multiple U-shaped stiffening rib (2) and steel web (4), each U-shaped stiffening rib (2) is symmetrically distributed in the both sides of steel web (4), it is characterized in that, described stiffening construction also comprises two plain plate stiffening ribs (3) that are arranged symmetrically in steel web (4) both sides, and plain plate stiffening rib (3) is positioned between the U-shaped stiffening rib (2) of steel web (4) and homonymy; Joint between described U-shaped stiffening rib (2) and steel bridge deck (1) adopts single groove partial penetration weld seam, and fusion penetration is not less than 0.8 times of its thickness of slab; Joint between described plain plate stiffening rib (3) and steel bridge deck (1) adopts K shape groove melt-through weld; Described plain plate stiffening rib (3) is 150mm with the spacing of steel web (4) and U-shaped stiffening rib (2), is highly not more than 150mm.
2. the method for putting more energy into of a steel bridge deck web position claimed in claim 1, it is characterized in that, between the U-shaped stiffening rib (2) of steel web (4) and its both sides, be arranged symmetrically with two plain plate stiffening ribs (3), the employing K shape groove melt-through weld between described plain plate stiffening rib (3) and steel bridge deck (1) is connected; Between U-shaped stiffening rib (2) and steel bridge deck (1), adopt single groove partial penetration weld seam to be connected, fusion penetration is not less than 0.8 times of its thickness of slab.
3. the method for putting more energy into according to claim 2, it is characterized in that, the described method of putting more energy into also comprises: first steel bridge deck (1), U-shaped stiffening rib (2) and plain plate stiffening rib (3) are welded into panel one-piece parts, welding is completed by portal beam welding machine, point twice are carried out, and first adopts CO
2gas shielded arc welding bottoming, fills 2/3 of groove, and second adopts Lincoln weld capping, welding again after steel bridge deck (1), U-shaped stiffening rib (2) and plain plate stiffening rib (3) must fix on reversely deformed jig frame; Then panel one-piece parts and steel web (4) are assembled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310065823.8A CN103088753B (en) | 2013-03-01 | 2013-03-01 | Bracing construction and method at steel bridge deck slab web plate position |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310065823.8A CN103088753B (en) | 2013-03-01 | 2013-03-01 | Bracing construction and method at steel bridge deck slab web plate position |
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| Publication Number | Publication Date |
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| CN103088753A CN103088753A (en) | 2013-05-08 |
| CN103088753B true CN103088753B (en) | 2014-11-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002173911A (en) * | 2000-12-07 | 2002-06-21 | Ishikawajima Harima Heavy Ind Co Ltd | Re-covering execution method for steel floorslab and concrete floorslab |
| JP4650255B2 (en) * | 2005-12-22 | 2011-03-16 | 株式会社大林組 | Steel slab reinforcement structure and existing steel slab reinforcement method |
| CN201843076U (en) * | 2010-10-12 | 2011-05-25 | 中铁二院工程集团有限责任公司 | Groove-shaped steel bridge deck structure of high-speed railway steel tied arched bridge |
| CN202298438U (en) * | 2011-11-11 | 2012-07-04 | 浙江大学 | Bidirectional pre-bent multi-beam type structure of small steel-concrete box girder bridge |
| CN202401394U (en) * | 2011-12-26 | 2012-08-29 | 中铁二院工程集团有限责任公司 | Crossbeam structure of railway steel-girder cable-stayed bridge decking |
| CN102806415A (en) * | 2012-08-22 | 2012-12-05 | 中国能源建设集团江苏省电力建设第三工程公司 | Gouging-free welding method and welding platform for welding web plate and flange of H-shaped steel |
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Address after: 300051 No. 239, Yingkou Road, Heping District, Tianjin Patentee after: Tianjin municipal engineering design and Research Institute Co.,Ltd. Address before: 300051 No. 239, Yingkou Road, Heping District, Tianjin Patentee before: TIANJIN MUNICIPAL ENGINEERING DESIGN & Research Institute |