CN206616462U - A kind of high-speed railway steel bridge upper berth sets the bridge deck structure system of non-fragment orbit - Google Patents
A kind of high-speed railway steel bridge upper berth sets the bridge deck structure system of non-fragment orbit Download PDFInfo
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- CN206616462U CN206616462U CN201720230063.5U CN201720230063U CN206616462U CN 206616462 U CN206616462 U CN 206616462U CN 201720230063 U CN201720230063 U CN 201720230063U CN 206616462 U CN206616462 U CN 206616462U
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- fragment orbit
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Abstract
The utility model is related to the bridge deck structure system that a kind of high-speed railway steel bridge upper berth sets non-fragment orbit.Non-fragment orbit is laid on existing Steel Bridge Deck, concrete bed is connected by WELDING STUDS with Steel Bridge Deck, steel bridge deck is also easy to produce fatigue crack, fatigue problem is serious, and peg bias is larger, the increase of weld seam moment of flexure finally causes the fatigue rupture of peg.The utility model in laid on crossbeam welded on steel bridge deck, steel bridge deck along bridge to PBL keys, pour on steel bridge deck and non-fragment orbit built-in fitting be installed on steel fiber reinforced concrete formation steel fiber reinforced concrete slabses, steel fiber reinforced concrete slabses, finally lay non-fragment orbit.The utility model can realize that non-fragment orbit is effectively connected with concrete bed and steel bridge deck, PBL shear connectors can save the welding sequence of peg, it is welded to by the continuous fillet weld of Size of welds very little on steel bridge deck, it is more reliable than peg local welding, than peg anti-fatigue performance more preferably, it is higher than peg bearing capacity.
Description
Technical field
The utility model belongs to bridge structure technical field of buildings, and in particular to a kind of high-speed railway steel bridge upper berth sets no tiny fragments of stone, coal, etc.
The bridge deck structure system of track.
Background technology
Because non-fragment orbit has high stability, reliability, durability, the features such as maintenance workload is small, no tiny fragments of stone, coal, etc. rail
Road turns into the preferred track structure form of Develop High-Speed Railway in world wide.Both at home and abroad for laying nothing on concrete bridge
This technology of tiny fragments of stone, coal, etc. track is highly developed, but the application example that non-fragment orbit is laid in LARGE SPAN STEEL BRIDGE is seldom.
The railway steel bridge that China builds early stage, using open bridge floors structure type.Repaiied in recent years in PDL Construction
The a collection of LARGE SPAN STEEL BRIDGE built, it is most of to use Ballast track structure.The Long Span Railway Steel Bridge built up of foreign countries also big portion
Divide and use open bridge floors and Ballast track, only have a small amount of application example on the steel truss bridge of medium and small span.
The mode that non-fragment orbit is laid on traditional Steel Bridge Deck is that non-fragment orbit is laid on concrete bed, concrete
Base is connected by WELDING STUDS with Steel Bridge Deck.At home and abroad in Practical Project, fatigue crack occurs for Orthotropic Steel Bridge Deck
Situation is than more serious, because WELDING STUDS is more in the solder joint of floorings, and the fatigue problem that can aggravate Steel Bridge Deck is produced.Concrete slab
Shearing circulation between girder steel can also make the concrete damage of peg root, and cause peg bias increase, and then it is curved to increase weld seam
Square, finally causes the fatigue rupture of peg.
The content of the invention
The purpose of this utility model is to provide the bridge deck structure system that a kind of high-speed railway steel bridge upper berth sets non-fragment orbit, adopts
The mode of peg is replaced to realize that non-fragment orbit is effectively connected with concrete bed and steel bridge deck with PBL shear connectors.
The technical scheme that the utility model is used for：
A kind of high-speed railway steel bridge upper berth sets the bridge deck structure system of non-fragment orbit, it is characterised in that：
In laid on crossbeam welded on steel bridge deck, steel bridge deck along bridge to PBL keys, pour steel fibre on steel bridge deck
Non-fragment orbit built-in fitting is installed on concrete formation steel fiber reinforced concrete slabses, steel fiber reinforced concrete slabses, non-fragment orbit is finally laid.
PBL keys be along bridge to multiple tracks elongate steel plate, offer on per pass steel plate along bridge to rows of multiple PBL keys
Direction across bridge is provided with hole, PBL keyholes hole runs through reinforcing bar.
Steel bridge deck bottom surface is provided with U-shaped ribbed stiffener.
Stringer is provided between the U-shaped ribbed stiffener of steel bridge deck bottom surface.
The utility model has advantages below：
Compared to the mode that non-fragment orbit is laid on traditional Steel Bridge Deck, the utility model is based on that PBL keys bearing capacity is big, ductility
The good, advantage with good anti-fatigue performance, can be achieved non-fragment orbit and is effectively connected with concrete bed and steel bridge deck,
PBL shear connectors can save the welding sequence of peg, be welded to by the continuous fillet weld of Size of welds very little on steel bridge deck,
It is more reliable than peg local welding, it is, higher than peg bearing capacity than peg anti-fatigue performance more preferably, there is the larger market competitiveness,
Economy is more superior.
Brief description of the drawings
Fig. 1 bridge deck structure system direction across bridge sectional drawings.
Fig. 2 bridge deck structures system is along bridge to sectional drawing.
Fig. 3 bridge deck structure system plans.
In figure, 1, non-fragment orbit, 2, ballastless track bed reinforcing bar, 3, ballastless track bed be connected steel with concrete bed
Muscle, 4, PBL keys, 5, through reinforcing bar, 6, steel fiber reinforced concrete slabses, 7, steel bridge deck, 8, U-shaped ribbed stiffener, 9, stringer, 10, horizontal
Beam, 11, PBL keyholes hole.
Embodiment
The utility model is described in detail with reference to embodiment.
The high-speed railway steel bridge upper berth that the utility model is related to sets the bridge deck structure system of non-fragment orbit, in the upper berth of crossbeam 10
If steel bridge deck 7, steel bridge deck 7 is orthotropic plate, on steel bridge deck 7 welding along bridge to PBL keys 4, PBL keys 4 are along bridge
To multiple tracks elongate steel plate, offer on per pass steel plate along bridge to rows of multiple PBL keyholes holes 11, PBL keyholes hole 11
In be provided with direction across bridge run through reinforcing bar 5.20 ~ 50cm steel fiber reinforced concretes formation steel fiber reinforced concrete is poured on steel bridge deck 7
Non-fragment orbit built-in fitting is installed on plate 6, steel fiber reinforced concrete slabses 6, non-fragment orbit is finally laid.
The bottom surface of steel bridge deck 7 is provided with U-shaped ribbed stiffener 8.It is provided between the U-shaped ribbed stiffener 8 of the bottom surface of steel bridge deck 7 small vertical
Beam 9.
Structure of the present utility model realizes the technical scheme that high-speed railway girder steel upper berth sets non-fragment orbit, improves no tiny fragments of stone, coal, etc.
The reliability that track plates are connected with girder steel, when high-speed railway Steel Bridge Deck upper berth sets non-fragment orbit, is laid on mixed using non-fragment orbit
On solidifying soil base, concrete bed is connected to form new bridge deck structure system by PBL shear connectors and Steel Bridge Deck.
Content of the present utility model is not limited to cited by embodiment, and those of ordinary skill in the art are new by reading this practicality
Type specification and any equivalent conversion taken technical solutions of the utility model, are claim institute of the present utility model
Cover.
Claims (4)
1. a kind of high-speed railway steel bridge upper berth sets the bridge deck structure system of non-fragment orbit, it is characterised in that：
In crossbeam（10）Upper laying steel bridge deck（7）, steel bridge deck（7）It is upper welding along bridge to PBL keys（4）, steel bridge deck（7）
On pour steel fiber reinforced concrete formation steel fiber reinforced concrete slabses（6）, steel fiber reinforced concrete slabses（6）Upper installation non-fragment orbit is pre-buried
Part, finally lays non-fragment orbit.
2. a kind of high-speed railway steel bridge upper berth according to claim 1 sets the bridge deck structure system of non-fragment orbit, its feature
It is：
PBL keys（4）For along bridge to multiple tracks elongate steel plate, offer on per pass steel plate along bridge to rows of multiple PBL keys
Hole（11）, PBL keyholes hole（11）In be provided with direction across bridge run through reinforcing bar（5）.
3. a kind of high-speed railway steel bridge upper berth according to claim 1 sets the bridge deck structure system of non-fragment orbit, its feature
It is：
Steel bridge deck（7）Bottom surface is provided with U-shaped ribbed stiffener（8）.
4. a kind of high-speed railway steel bridge upper berth according to claim 3 sets the bridge deck structure system of non-fragment orbit, its feature
It is：
Steel bridge deck（7）The U-shaped ribbed stiffener of bottom surface（8）Between be provided with stringer（9）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720230063.5U CN206616462U (en) | 2017-03-10 | 2017-03-10 | A kind of high-speed railway steel bridge upper berth sets the bridge deck structure system of non-fragment orbit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720230063.5U CN206616462U (en) | 2017-03-10 | 2017-03-10 | A kind of high-speed railway steel bridge upper berth sets the bridge deck structure system of non-fragment orbit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206616462U true CN206616462U (en) | 2017-11-07 |
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ID=60232130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720230063.5U Active CN206616462U (en) | 2017-03-10 | 2017-03-10 | A kind of high-speed railway steel bridge upper berth sets the bridge deck structure system of non-fragment orbit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206616462U (en) |
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2017
- 2017-03-10 CN CN201720230063.5U patent/CN206616462U/en active Active
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