CN207419259U - A kind of light-duty composite reinforcement structure that steel bridge deck has been split without repairing - Google Patents
A kind of light-duty composite reinforcement structure that steel bridge deck has been split without repairing Download PDFInfo
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- CN207419259U CN207419259U CN201721470446.6U CN201721470446U CN207419259U CN 207419259 U CN207419259 U CN 207419259U CN 201721470446 U CN201721470446 U CN 201721470446U CN 207419259 U CN207419259 U CN 207419259U
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Abstract
A kind of light-duty composite reinforcement structure that steel bridge deck has been split without repairing, including having split steel bridge deck, the steel plate strip for being welded with short peg and ultra-high performance concrete layer, the suitable bridge in steel plate strip edge is to arranged for interval on steel bridge deck has been split, ultra-high performance concrete layer, which is cast in, have been split on steel bridge deck, and covers steel plate strip and steel bridge deck.The light-duty composite reinforcement structure, need not repair the crack on steel bridge deck, without binding agent, construction can be completed using ordinary soldering techniques, equipment investment is small, easy to operate, is easy to construct；The composite reinforcement structure significantly reduces the Fatigue Stress Amplitude of steel bridge deck, and then eliminates the risk that Steel Bridge Deck continues cracking, and already present crack will not be further continued for expanding development；Meanwhile steel plate strip can guarantee again fractue spacing region ultra-high performance concrete layer bottom surface will not crack in tension, the steel bridge deck with crack is made still can to continue to be on active service in the entire design cycle as permanent component, extends its anti-fatigue life.
Description
Technical field
The utility model is related to a kind of bridge structure reinforced for Orthotropic Steel Bridge Deck, more particularly, to a kind of nothing
The light-duty composite reinforcement structure for having split steel bridge deck need to be repaired.
Background technology
Orthotropic Steel Bridge Deck is the bridge deck structure form that domestic and international big-and-middle across footpath bridge generally uses, and China is from 20 generation
It records and starts the eighties using steel box-girder orthotropic rectangular plates structure, the large-span steel case using this kind of structure type being completed at present
Beam bridge is up to more than 100 seats.However, constantly adding up with bridge active time, and the weather conditions of some areas are severe, traffic
Amount rapid development, overload the factors such as serious, and Steel Bridge Deck is caused to be also easy to produce fatigue rupture.At present, orthotropic steel at home and abroad
In the bridge of floorings, it has been observed that different degrees of fatigue crack.Domestic built more famous Jiangsu Jiangyin the Changjiang river is big
Bridge, Runyang Changjiang Highway Bridge girder are using steel box-girder orthotropic rectangular plates structure, its panel welding position mesh after putting into operation
It is preceding the even destruction of different degrees of fatigue damage, crack disease all occur, load carrying capacity of bridge, the traffic capacity is caused to drop significantly
It is low, it has to freight weight limit, speed limit to be taken to pass through measure, while it makes its service life also greatly shorten.
Tradition reinforces the method in steel bridge deck crack based on bound rectangle steel plate block, it is therefore intended that enhancing cracking steel plate
Local stiffness.But for the steel bridge deck of Large Area Cracking, it is extremely difficult to go to repair substantial amounts of steel bridge deck crack, and
And work progress is complicated, the cycle is longer.Using steel-ultra-high performance concrete combined bridge deck structure to reducing each details of steel bridge deck
Fatigue Stress Amplitude have remarkable result, can effectively inhibit its fatigue cracking, and be had existed for steel bridge deck
Crack will not continue to develop.Since the presence in steel bridge deck crack can cause concrete layer bottom surface horizontal tensile stress excessive, deposit
In cracking risk, problems demand solves.
Utility model content
The technical problems to be solved in the utility model is：It is simple in structure to overcome the deficiencies of the prior art and provide one kind, is convenient for
The strong light-duty composite reinforcement structure that steel bridge deck has been split without repairing of construction, combined bridge deck concrete layer bottom surface anti-crack ability,
And then effectively reduce the Fatigue Stress Amplitude of steel bridge deck and cracked disease with dispelling fatigue, and ensure that concrete layer bottom surface will not be due to
Steel bridge deck there are crack and crack in tension.
Technical solution is used by the utility model solves its technical problem：
It is a kind of to have split the light-duty composite reinforcement structure of steel bridge deck without repairing, including split steel bridge deck, be welded with it is short
The steel plate strip of peg and ultra-high performance concrete layer, the steel plate strip along bridge to arranged for interval on steel bridge deck has been split,
The ultra-high performance concrete layer, which is cast in, have been split on steel bridge deck, and covers steel plate strip and steel bridge deck.
Further, the length of the steel plate strip for being welded with short peg is equal to the width for having split steel bridge deck, and width is
70 ~ 110mm, steel plate strip are positioned at by the spot welding in both sides on steel bridge deck.
Further, the steel plate strip for being welded with short peg includes the first steel plate strip and the second steel plate strip, the 3rd steel plate
One or both of item, the width of first steel plate strip is 70mm ~ 75mm, is laid on the intact region of steel bridge deck；Institute
The width of the second steel plate strip is stated as 75mm ~ 90mm, is laid on the less region in steel bridge deck crack；3rd steel plate strip
Width is 90mm ~ 110mm, is laid on region of the steel bridge deck crack compared with concentration.
Further improvement project is that described split goes back weld stud on steel bridge deck, the steel plate strip is laid on adjacent
Gap location between peg.
Further, the spacing between adjacent peg is 100 ~ 300mm, it is preferable that the spacing between adjacent peg is adjacent steel
The sum of width of sheet.
Further, the short welding of peg is on the center line of steel plate strip length direction, the spacing between adjacent short peg
For 100 ~ 300mm.
Further, the height of the short peg is 35 ~ 45mm, a diameter of 10 ~ 20mm.
Further, the ultra-high performance concrete layer is poured by ultra-high performance concrete, and the very-high performance mixes
Solidifying soil refers to mix not less than 8MPa's not less than 100MPa, axial tensile strength containing steel fibre and non-coarse aggregate, compression strength in component
Solidifying soil.
Further improvement project, which is that the light-duty composite reinforcement structure further includes, to be arranged in ultra-high performance concrete layer
Bar-mat reinforcement, bar-mat reinforcement is located at the lower section and/or top of steel plate strip.Bar-mat reinforcement is by with adjacent bar spacing 30-50mm, staggeredly paving
If longitudinal reinforcement and transverse steel composition, bar diameter 8-12mm.
A kind of light-duty composite reinforcement structure that steel bridge deck has been split without repairing of the utility model, on steel bridge deck has been split
Reinforcement of weld peg；Then by the steel plate strip for being welded with short peg be placed on it is adjacent reinforcing peg between, and pass through spot welding position
In steel plate strip on the steel bridge deck to have cracked, is made to be arranged in entire steel bridge deck to elongated at spacing intervals along bridge, along horizontal stroke
Bridge is arranged in that whole bridge is wide to elongated, forms the light-duty composite reinforcement structure that steel bridge deck has been split without repairing, eliminates what is cracked
Continue the risk of development in steel bridge deck crack.
A kind of advantageous effect for the light-duty composite reinforcement structure that steel bridge deck has been split without repairing of the utility model：
1）The crack on steel bridge deck is not repaired, it is only necessary to which the weld stud on the steel bridge deck to have cracked in advance then will
The steel plate strip for being welded with short peg is welded on steel bridge deck, is finally laid with bar-mat reinforcement and cast-in-place ultra-high performance concrete layer,
The construction equipment of complicated construction technology and high investment need not be used, it, can be complete using ordinary soldering techniques without binding agent
Into construction, equipment investment is small, easy to operate, is easy to construct, relatively low to the quality and construction process requirement of construction personnel；
2）It is welded in the steel plate strip of short peg, enhances the tensile capacity of concrete layer bottom surface, make concrete layer bottom surface not
It can crack because steel bridge deck there are causing its horizontal tensile stress excessive during crack, further improve the stress of composite reinforcement structure
Situation；Using the light-duty composite reinforcement structure of steel-ultra-high performance concrete with steel plate strip, steel bridge deck is significantly reduced
Fatigue Stress Amplitude, and then the risk that Steel Bridge Deck continues cracking is eliminated, while already present crack will not be further continued for expanding development；
3）Bar-mat reinforcement in ultra-high performance concrete layer improve concrete layer direction across bridge and along bridge to tension, shearing resistance
Ability；
4）By using the light-duty composite reinforcement structure that steel bridge deck has been split without repairing of the utility model, disappear substantially
Except the possibility that the steel bridge deck that cracked cracks again, the steel bridge deck with crack can still be used as permanent component entire
Continue to be on active service in design cycle, extend its anti-fatigue life, improve the durability of bridge deck；
5）In conclusion having split the light-duty composite reinforcement structure of steel bridge deck in the utility model without repairing, have not
Steel bridge deck crack need to be repaired, ultra-high performance concrete layer bottom surface pull resistance is good, steel plate strip and concrete layer bonding are reliable, anti-tired
The advantages that labor is good, easy construction has great use value and good economic benefit, has in steel bridge construction field wide
Wealthy application prospect.
Description of the drawings
Fig. 1-be a kind of suitable bridge for the light-duty composite reinforcement structure that steel bridge deck has been split without repairing in embodiment 1 is to cuing open
View；
Fig. 2-it is Section A-A sectional view in Fig. 1；
Fig. 3-it is section B-B sectional view in Fig. 1；
Fig. 4-to be welded with the structure diagram of the steel plate strip of short peg in Fig. 1；
Fig. 5-cutd open for a kind of direction across bridge for the light-duty composite reinforcement structure for having split steel bridge deck without repairing in embodiment 2
View；
Fig. 6-it is C-C cross-sectional views in Fig. 4;
Fig. 7-it is D-D cross-sectional views in Fig. 4.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and embodiments.
Embodiment 1
With reference to Fig. 1 ~ 4, a kind of light-duty composite reinforcement structure that steel bridge deck has been split without repairing of the present embodiment, including
Split steel bridge deck 1, be welded with the steel plate strip 2 of short peg 3 and ultra-high performance concrete layer 5, the steel plate strip 2 along bridge to
It has been split every being arranged on steel bridge deck 1, the ultra-high performance concrete layer 5, which is cast in, have been split on steel bridge deck 1, and covers steel plate
Item 2 and steel bridge deck 1.
The length of the steel plate strip 2 for being welded with short peg, which is equal to, has split the width of steel bridge deck 1, width for 60 ~
110mm, steel plate strip 2 in both sides spot welding by being positioned on steel bridge deck 1.
The steel plate strip 2 for being welded with short peg 3 includes the first steel plate strip 21 and the second steel plate strip 22, first steel plate
The width of item 21 is 65mm, is laid on 1 intact region of steel bridge deck；The width of second steel plate strip 22 is 90mm, is spread
It is located at the less region in 1 crack 11 of steel bridge deck.
The short peg 3 is welded on the center line of 2 length direction of steel plate strip, and the spacing between adjacent short peg 3 is 100
~300mm。
The height of the short peg 3 is 35 ~ 45mm, a diameter of 10 ~ 20mm.
Described split is also associated with peg 4 on steel bridge deck 1, the steel plate strip 2 is laid on the gap between adjacent peg 4
Place.
Spacing between adjacent peg 4 is 150 ~ 180mm, and the spacing between adjacent peg 4 is wide equal to adjacent steel plate strip 2
The sum of degree.
The ultra-high performance concrete layer 3 is poured by ultra-high performance concrete, and the ultra-high performance concrete is
Refer in component and be not less than the concrete of 100MPa, axial tensile strength not less than 8MPa containing steel fibre and non-coarse aggregate, compression strength.
Embodiment 2
With reference to Fig. 5 ~ 7, a kind of light-duty composite reinforcement structure that steel bridge deck has been split without repairing of the present embodiment, with implementation
Example 1 is compared, and also there are following differences：
The steel plate strip 2 includes the first steel plate strip 21, the second steel plate strip 22 and the 3rd steel plate strip 23, first steel plate strip
21 width is 60mm, is laid on 1 intact region of steel bridge deck；The width of second steel plate strip 22 is 85mm, is laid with
In the less region in 1 crack 11 of steel bridge deck；The width of 3rd steel plate strip 23 is 110mm, is laid on steel bridge deck 1 and splits
The region that seam 11 is relatively concentrated.
Described split is also associated with peg 4 on steel bridge deck 1, the steel plate strip 2 is laid on the gap between adjacent peg 4
Place.
Spacing between adjacent peg 4 is 300mm.
The light-duty composite reinforcement structure further includes the bar-mat reinforcement 6 being arranged in ultra-high performance concrete layer 3, bar-mat reinforcement 6
Positioned at the above and below of steel plate strip 2.Bar-mat reinforcement 6 is by with 62 and of longitudinal reinforcement of adjacent bar spacing 30-50mm, staggeredly laying
Transverse steel 61 forms, bar diameter 8-12mm.
A kind of light-duty composite reinforcement structure that steel bridge deck has been split without repairing of the present embodiment, is splitting steel bridge deck 1
Upper weld stud；Then between the steel plate strip 2 for being welded with short peg 3 being placed on adjacent peg, and pass through spot welding and be positioned at
On the steel bridge deck 1 of cracking, steel plate strip 2 is made to be arranged in entire steel bridge deck 1 to elongated at spacing intervals along bridge, along cross-bridges
It is arranged in that whole bridge is wide to elongated, forms the light-duty composite reinforcement structure that steel bridge deck has been split without repairing, eliminate the steel to have cracked
Continue the risk of development in 1 crack 11 of floorings.
Claims (8)
1. a kind of split the light-duty composite reinforcement structure of steel bridge deck without repairing, which is characterized in that including split steel bridge deck,
The steel plate strip of short peg and ultra-high performance concrete layer are welded with, the steel plate strip is splitting steel bridge along bridge to arranged for interval
On panel, the ultra-high performance concrete layer, which is cast in, have been split on steel bridge deck, and covers steel plate strip and steel bridge deck.
2. the light-duty composite reinforcement structure of steel bridge deck is split without repairing as described in claim 1, which is characterized in that the weldering
The length for being connected to the steel plate strip of short peg is equal to and has split the width of steel bridge deck, and width is 70 ~ 110mm, steel plate strip by
Both sides spot welding is positioned on steel bridge deck.
3. the light-duty composite reinforcement structure of steel bridge deck is split without repairing as claimed in claim 2, which is characterized in that the weldering
Being connected to the steel plate strip of short peg includes one or both of the first steel plate strip and the second steel plate strip, the 3rd steel plate strip, described
The width of first steel plate strip is 70mm ~ 75mm, is laid on the intact region of steel bridge deck；The width of second steel plate strip is
75mm ~ 90mm is laid on the less region in steel bridge deck crack；The width of 3rd steel plate strip is 90mm ~ 110mm,
It is laid on region of the steel bridge deck crack compared with concentration.
4. having split the light-duty composite reinforcement structure of steel bridge deck without repairing as described in any one of claim 1 ~ 3, feature exists
In described split goes back weld stud on steel bridge deck, the steel plate strip is laid on the gap location between adjacent peg.
5. the light-duty composite reinforcement structure of steel bridge deck is split without repairing as claimed in claim 4, which is characterized in that adjacent bolt
Spacing between nail is 100 ~ 300mm.
6. having split the light-duty composite reinforcement structure of steel bridge deck without repairing as described in any one of claim 1 ~ 3, feature exists
In, for the short welding of peg on the center line of steel plate strip length direction, the spacing between adjacent short peg is 100 ~ 300mm,
The height of the short peg is 35 ~ 45mm, a diameter of 10 ~ 20mm.
7. the light-duty composite reinforcement structure of steel bridge deck, feature are split without repairing as any one of claim 1 ~ 3
It is, the light-duty composite reinforcement structure further includes the bar-mat reinforcement being arranged in ultra-high performance concrete layer, and bar-mat reinforcement is located at steel
The lower section and/or top of lath；Bar-mat reinforcement is by the longitudinal reinforcement with adjacent bar spacing 30-50mm, being staggeredly laid with and horizontal steel
Muscle forms, bar diameter 8-12mm.
8. the light-duty composite reinforcement structure of steel bridge deck, feature are split without repairing as any one of claim 1 ~ 3
It is, the ultra-high performance concrete layer is poured by ultra-high performance concrete, and the ultra-high performance concrete refers to group
It is not less than the concrete of 100MPa, axial tensile strength not less than 8MPa containing steel fibre and non-coarse aggregate, compression strength in point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721470446.6U CN207419259U (en) | 2017-11-07 | 2017-11-07 | A kind of light-duty composite reinforcement structure that steel bridge deck has been split without repairing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721470446.6U CN207419259U (en) | 2017-11-07 | 2017-11-07 | A kind of light-duty composite reinforcement structure that steel bridge deck has been split without repairing |
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| Publication Number | Publication Date |
|---|---|
| CN207419259U true CN207419259U (en) | 2018-05-29 |
Family
ID=62307747
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721470446.6U Active CN207419259U (en) | 2017-11-07 | 2017-11-07 | A kind of light-duty composite reinforcement structure that steel bridge deck has been split without repairing |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756065A (en) * | 2018-05-30 | 2018-11-06 | 东南大学 | A kind of basalt fibre grid enhancing concrete exempts to tear column mould and preparation method thereof open |
| CN108797893A (en) * | 2018-05-30 | 2018-11-13 | 东南大学 | A kind of carbon fiber mesh enhancing concrete exempts to tear column mould and preparation method thereof open |
| CN108797892A (en) * | 2018-05-30 | 2018-11-13 | 东南大学 | A kind of fiberglass gridding enhancing concrete exempts to tear column mould and preparation method thereof open |
| CN109468939A (en) * | 2019-01-04 | 2019-03-15 | 武汉二航路桥特种工程有限责任公司 | Steel case bridge floor composite reinforcement paving structure and its construction method |
| CN110184951A (en) * | 2019-05-23 | 2019-08-30 | 长沙理工大学 | Combined bridge deck structure and reinforced construction method with direction across bridge reinforcing strip |
| CN111560866A (en) * | 2020-05-29 | 2020-08-21 | 南京同力建设集团股份有限公司 | Bridge deck reinforcing structure of post-added sound barrier screen viaduct and construction method thereof |
| CN112376450A (en) * | 2020-12-09 | 2021-02-19 | 中铁大桥科学研究院有限公司 | Reinforced structure for cracking of steel bridge deck panel and construction method thereof |
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2017
- 2017-11-07 CN CN201721470446.6U patent/CN207419259U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756065A (en) * | 2018-05-30 | 2018-11-06 | 东南大学 | A kind of basalt fibre grid enhancing concrete exempts to tear column mould and preparation method thereof open |
| CN108797893A (en) * | 2018-05-30 | 2018-11-13 | 东南大学 | A kind of carbon fiber mesh enhancing concrete exempts to tear column mould and preparation method thereof open |
| CN108797892A (en) * | 2018-05-30 | 2018-11-13 | 东南大学 | A kind of fiberglass gridding enhancing concrete exempts to tear column mould and preparation method thereof open |
| CN109468939A (en) * | 2019-01-04 | 2019-03-15 | 武汉二航路桥特种工程有限责任公司 | Steel case bridge floor composite reinforcement paving structure and its construction method |
| CN110184951A (en) * | 2019-05-23 | 2019-08-30 | 长沙理工大学 | Combined bridge deck structure and reinforced construction method with direction across bridge reinforcing strip |
| CN111560866A (en) * | 2020-05-29 | 2020-08-21 | 南京同力建设集团股份有限公司 | Bridge deck reinforcing structure of post-added sound barrier screen viaduct and construction method thereof |
| CN112376450A (en) * | 2020-12-09 | 2021-02-19 | 中铁大桥科学研究院有限公司 | Reinforced structure for cracking of steel bridge deck panel and construction method thereof |
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