CN114427194A - Toughness steel mixes bridge floor - Google Patents
Toughness steel mixes bridge floor Download PDFInfo
- Publication number
- CN114427194A CN114427194A CN202210277932.5A CN202210277932A CN114427194A CN 114427194 A CN114427194 A CN 114427194A CN 202210277932 A CN202210277932 A CN 202210277932A CN 114427194 A CN114427194 A CN 114427194A
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- Prior art keywords
- steel
- bottom plate
- steel bars
- reinforcing bar
- wave form
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 81
- 239000010959 steel Substances 0.000 title claims abstract description 81
- 239000004567 concrete Substances 0.000 claims abstract description 24
- 230000003014 reinforcing effect Effects 0.000 claims description 23
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 9
- 239000010426 asphalt Substances 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000010008 shearing Methods 0.000 abstract description 9
- 230000002787 reinforcement Effects 0.000 abstract description 7
- 238000005336 cracking Methods 0.000 abstract description 5
- 230000008093 supporting effect Effects 0.000 abstract description 3
- 238000004873 anchoring Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- 239000011150 reinforced concrete Substances 0.000 description 3
- 230000035882 stress Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a tough steel-concrete bridge deck, which mainly relates to the technical field of road and bridge construction equipment and comprises a wave-shaped steel bottom plate, a concrete layer and a shear connector, wherein symmetrical arc-shaped openings are equidistantly arranged at the upper part of the shear connector, elliptic holes are equidistantly arranged at the lower part of the shear connector, transverse steel bars penetrate through the symmetrical arc-shaped openings, V-shaped steel bar elliptic holes are formed, longitudinal steel bars are equidistantly distributed at the upper side and the lower side of the transverse steel bars, studs are arranged on the wave-shaped steel bottom plate, the transverse steel bars can improve the shearing resistance and the fatigue resistance of a combined bridge deck, and the combined bridge deck is ensured to have higher shearing resistance and better fatigue resistance. The V-shaped steel bars improve the reinforcement ratio, effectively avoid concrete cracking, strengthen the anchoring of the corrugated steel bottom plate and the concrete layer, bear larger shearing force, and the studs play good supporting role and anti-shearing and anti-lifting role, increase the rigidity of the bridge deck, bear the load of the concrete layer and greatly reduce the fatigue stress of the key parts of the steel bridge deck.
Description
Technical Field
The invention mainly relates to the technical field of road and bridge construction equipment, in particular to a tough steel mixed bridge deck.
Background
In the design process of a concrete bridge, the weight of the bridge deck must be reduced in order to reduce the weight. At present, bridge decks applied to bridge engineering mostly adopt common reinforced concrete bridge decks, steel bridge decks, composite beam bridge decks or steel-concrete composite bridge decks.
The dead weight of the common reinforced concrete bridge deck plate accounts for a large proportion of the total load of the bridge, and the common reinforced concrete bridge deck plate is not economical enough when the span is large. The steel bridge deck has light dead weight, but has large steel consumption, high cost, small bending rigidity, easy generation of larger local deformation, poor high-temperature stability of a pavement layer, easy aging and cracking and low strength. The laminated beam bridge deck has low cost and mature technology, but the thickness is generally more than 20cm, the self weight is large, and longitudinal and transverse wet seams between the backing plates are connected with steel beams and have more diseases. The steel-concrete combined bridge deck has light dead weight, high bearing capacity and good durability, but has higher requirement on welding process.
The steel-concrete composite bridge deck of the domestic conventional type is easy to have the defects of fatigue cracking of the steel bridge deck, cracking of a pavement layer, rutting, crowding and the like after being used for a period of time, and has to be frequently maintained in an operation cycle, so that the maintenance cost is extremely high, and the traffic interruption causes huge social cost. The practice shows that the rigidity of the steel bridge deck is insufficient, the high-temperature performance, the fatigue property and the bonding strength of the asphalt pavement layer are not good, and the bridge is overloaded for operation. Therefore, it is necessary to provide a novel bridge deck having the characteristics of high bearing capacity and light self weight.
Disclosure of Invention
In view of the deficiencies and drawbacks of the prior art, it is an object of the present invention to provide a tough steel hybrid deck.
In order to solve the technical problem, the invention adopts the following technical scheme: the utility model provides a toughness steel mixes bridge floor, includes wave form steel bottom plate and pours the concrete layer on wave form steel bottom plate set up fixed connection's shear force connecting piece on the central line of wave form steel bottom plate trough the upper portion equidistance of shear force connecting piece sets up the arc opening of symmetry, the equidistance of lower part sets up oval trompil, and horizontal reinforcing bar runs through the setting on the arc opening of symmetry, on the oval trompil of V-arrangement reinforcing bar, vertical reinforcing bar equidistance distributes both sides about horizontal reinforcing bar be equipped with the peg on the wave form steel bottom plate.
As a further improvement of the invention, the bending shape of the transverse reinforcing steel bar is consistent with the shape of the wave-shaped steel bottom plate, the concave part in the middle of the transverse reinforcing steel bar is positioned in the wave trough of the wave-shaped steel bottom plate and passes through the arc-shaped opening, and two ends of the transverse reinforcing steel bar are abutted against the wave crest of the wave-shaped steel bottom plate.
As a further improvement of the invention, the longitudinal steel bars are steel bars parallel to the length direction of the bridge deck.
As a further improvement of the invention, the V-shaped reinforcing steel bars and the transverse reinforcing steel bars are arranged at intervals in a layered mode.
As a further improvement of the invention, the pin penetrates and connects the junctions of the transverse steel bars and the longitudinal steel bars which are symmetrically arranged.
As a further improvement of the invention, an asphalt layer is arranged on the upper part of the concrete layer.
As a further improvement of the invention, the transverse steel bars and the longitudinal steel bars are distributed in a net shape through welding studs.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the transverse steel bars can improve the shearing resistance and the fatigue resistance of the combined bridge deck, and ensure that the combined bridge deck has higher shearing resistance and better fatigue resistance. The V-shaped steel bars improve the reinforcement ratio, effectively avoid concrete cracking, strengthen the anchoring of the corrugated steel bottom plate and the concrete layer, bear larger shearing force, and the studs play good supporting role and anti-shearing and anti-lifting role, increase the rigidity of the bridge deck, bear the load of the concrete layer and greatly reduce the fatigue stress of the key parts of the steel bridge deck.
Drawings
The invention will be further described with reference to the following drawings and detailed description:
FIG. 1 is a front view of a ductile steel hybrid deck according to the present invention;
FIG. 2 is a side view of a ductile steel hybrid deck according to the present invention;
in the figure: 1 wave form steel bottom plate, 2 concrete layer, 3 horizontal reinforcing bars, 4 vertical reinforcing bars, 5 shear force connecting pieces, 6V-arrangement reinforcing bars, 7 pegs, 8 arc openings, 9 oval trompils, 10 pitch layers.
Detailed Description
In order to make the technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following specific embodiments.
Referring to fig. 1 and 2, disclose a mixed bridge floor structure of toughness steel, include wave form steel bottom plate 1 and pour concrete layer 2 on wave form steel bottom plate 1 set up fixed connection's shear force connecting piece 5 on the central line of wave form steel bottom plate 1 trough the upper portion equidistance of shear force connecting piece 5 sets up the arc opening 8 of symmetry, the lower part equidistance sets up oval trompil 9, and transverse reinforcement 3 runs through the setting on the arc opening 8 of symmetry, on the 6 oval trompil 9 of V-arrangement reinforcing bar, 4 equidistance distributions of longitudinal reinforcement are both sides about transverse reinforcement 3, longitudinal reinforcement 4 is the reinforcing bar that is on a parallel with bridge floor length direction. The wave-shaped steel bottom plate is provided with a stud 7. The shape of buckling of horizontal reinforcing bar 3 is unanimous with 1 shape of wave form steel bottom plate, and the concave part at horizontal reinforcing bar 3 middle part is arranged in the trough of wave form steel bottom plate 1 and passes from arc opening 8, and the both ends of horizontal reinforcing bar 3 are taken up and are leaned on 1 crest of wave form steel bottom plate, V-arrangement reinforcing bar 6 sets up with horizontal reinforcing bar 3 layering interval. An asphalt layer 10 is arranged on the upper part of the concrete layer 2.
In the invention, the shear connector 5 is fixed on the center line of the wave trough of the wave-shaped steel bottom plate 1, the upper part of the shear connector 5 is uniformly provided with arc-shaped openings 8, two transverse steel bars 3 are correspondingly installed, the bending shape of the transverse steel bars 3 is consistent with that of the wave-shaped steel bottom plate 1, the concave part in the middle of the transverse steel bars 3 is positioned in the wave trough of the wave-shaped steel bottom plate 1 and penetrates through the arc-shaped openings 8, two ends of the transverse steel bars 3 are abutted against the wave crest of the wave-shaped steel bottom plate 1, after concrete is poured, the shear resistance and the fatigue resistance of the composite bridge deck can be improved, and the composite bridge deck is ensured to have higher shear resistance and better fatigue resistance.
On the oval trompil 9 of V-arrangement reinforcing bar 6, V-arrangement reinforcing bar 6 improves the arrangement of reinforcement rate, has effectively avoided the concrete fracture, can strengthen the anchor of wave form steel bottom plate 1 and concrete layer 2, can bear great shear force again.
The stud 7 is used for connecting the corrugated steel bottom plate 1 and the concrete layer 2, has a good supporting effect on the combined bridge deck, has the functions of resisting shearing and lifting, increases the rigidity of the bridge deck, bears the load of the concrete layer, and greatly reduces the fatigue stress of key parts of the steel bridge deck. The cross steel bar 3 and the longitudinal steel bar 4 junction that the peg 7 through connection symmetry set up and weld with it, are netted distribution, make it have better toughness and ductility to the fatigue fracture problem that steel bridge face just appears has not reached the service life has been solved.
It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only, since various other embodiments will become apparent to those skilled in the art upon reference to the following detailed description.
Claims (7)
1. The utility model provides a toughness steel mixes bridge floor which characterized in that: including wave form steel bottom plate (1) and pour concrete layer (2) on wave form steel bottom plate (1) set up fixed connection's shear connector (5) on the central line of wave form steel bottom plate (1) trough the upper portion equidistance of shear connector (5) sets up arc opening (8), the lower part equidistance of symmetry and sets up oval trompil (9), and horizontal reinforcing bar (3) run through the setting on arc opening (8) of symmetry, on V-arrangement reinforcing bar (6) oval trompil (9), both sides about vertical reinforcing bar (4) equidistance distribution is in horizontal reinforcing bar (3 be equipped with toggle pin (7) on the wave form steel bottom plate.
2. A tough steel hybrid deck according to claim 1, characterized in that: the shape of buckling of horizontal reinforcing bar (3) is unanimous with wave form steel bottom plate (1) shape, and the concave part in horizontal reinforcing bar (3) middle part is arranged in the trough of wave form steel bottom plate (1) and passes from arc opening (8), and the both ends of horizontal reinforcing bar (3) are taken up and are leaned on wave crest of wave form steel bottom plate (1).
3. A tough steel hybrid deck according to claim 1, characterized in that: the longitudinal steel bars (4) are steel bars parallel to the length direction of the bridge deck.
4. A tough steel hybrid deck according to claim 1, characterized in that: the V-shaped reinforcing steel bars (6) and the transverse reinforcing steel bars (3) are arranged at intervals in a layered mode.
5. A tough steel hybrid deck according to claim 1, characterized in that: the stud (7) is connected with the intersection of the transverse steel bars (3) and the longitudinal steel bars (4) which are symmetrically arranged in a penetrating manner.
6. A tough steel hybrid deck according to claim 1, characterized in that: an asphalt layer (10) is arranged on the upper part of the concrete layer (2).
7. A tough steel hybrid deck according to claim 1, characterized in that: the transverse reinforcing steel bars (3) and the longitudinal reinforcing steel bars (4) are distributed in a net shape through welding studs (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210277932.5A CN114427194A (en) | 2022-03-21 | 2022-03-21 | Toughness steel mixes bridge floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210277932.5A CN114427194A (en) | 2022-03-21 | 2022-03-21 | Toughness steel mixes bridge floor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114427194A true CN114427194A (en) | 2022-05-03 |
Family
ID=81313909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210277932.5A Pending CN114427194A (en) | 2022-03-21 | 2022-03-21 | Toughness steel mixes bridge floor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114427194A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10227011A (en) * | 1997-02-17 | 1998-08-25 | Matsuo Kyoryo Kk | Steel form with main reinforcement for bridge floor, and construction of bridge floor using the form |
| JP2000110117A (en) * | 1998-08-06 | 2000-04-18 | Kobe Steel Ltd | Floor slab and construction method therefor |
| JP2001173155A (en) * | 1999-12-14 | 2001-06-26 | Asanuma Corp | Rc steel beam at the end portion |
| KR200371621Y1 (en) * | 2004-09-30 | 2005-01-03 | (주)씨팁스이엔지 | Semi-rigid connector for steel-concrete composite structure |
| JP2005256341A (en) * | 2004-03-10 | 2005-09-22 | Oriental Construction Co Ltd | Corrugated steel-plate web u component bridge |
| CN201095829Y (en) * | 2007-09-26 | 2008-08-06 | 胡洋 | Shearing-resistant connecting component |
| KR20120078945A (en) * | 2011-01-03 | 2012-07-11 | 권오근 | Prestressed concrete composite girder having corrugated steel plate web |
| CN203066352U (en) * | 2013-01-05 | 2013-07-17 | 华侨大学 | Self-supporting type special-shaped steel-encased-concrete composite beam |
| CN203487447U (en) * | 2013-07-18 | 2014-03-19 | 杭州博数土木工程技术有限公司 | Radiating steel rib connection piece |
| CN104831629A (en) * | 2015-05-31 | 2015-08-12 | 长安大学 | SCS steel-concrete deck slab with U-shaped connecting structures inside |
| CN105780649A (en) * | 2016-05-10 | 2016-07-20 | 四川省交通运输厅公路规划勘察设计研究院 | Concave rib weathering resistant steel-concrete combination bridge deck |
| CN109024216A (en) * | 2018-09-30 | 2018-12-18 | 西南交通大学 | Composite Steel-Concrete Bridges structure and combined bridge deck |
| CN111877156A (en) * | 2020-07-28 | 2020-11-03 | 长安大学 | Half-opening shear connector used in corrugated steel combined bridge deck |
| CN111910516A (en) * | 2020-07-28 | 2020-11-10 | 长安大学 | Composite pin shear connector used in corrugated steel composite bridge deck slab |
-
2022
- 2022-03-21 CN CN202210277932.5A patent/CN114427194A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10227011A (en) * | 1997-02-17 | 1998-08-25 | Matsuo Kyoryo Kk | Steel form with main reinforcement for bridge floor, and construction of bridge floor using the form |
| JP2000110117A (en) * | 1998-08-06 | 2000-04-18 | Kobe Steel Ltd | Floor slab and construction method therefor |
| JP2001173155A (en) * | 1999-12-14 | 2001-06-26 | Asanuma Corp | Rc steel beam at the end portion |
| JP2005256341A (en) * | 2004-03-10 | 2005-09-22 | Oriental Construction Co Ltd | Corrugated steel-plate web u component bridge |
| KR200371621Y1 (en) * | 2004-09-30 | 2005-01-03 | (주)씨팁스이엔지 | Semi-rigid connector for steel-concrete composite structure |
| CN201095829Y (en) * | 2007-09-26 | 2008-08-06 | 胡洋 | Shearing-resistant connecting component |
| KR20120078945A (en) * | 2011-01-03 | 2012-07-11 | 권오근 | Prestressed concrete composite girder having corrugated steel plate web |
| CN203066352U (en) * | 2013-01-05 | 2013-07-17 | 华侨大学 | Self-supporting type special-shaped steel-encased-concrete composite beam |
| CN203487447U (en) * | 2013-07-18 | 2014-03-19 | 杭州博数土木工程技术有限公司 | Radiating steel rib connection piece |
| CN104831629A (en) * | 2015-05-31 | 2015-08-12 | 长安大学 | SCS steel-concrete deck slab with U-shaped connecting structures inside |
| CN105780649A (en) * | 2016-05-10 | 2016-07-20 | 四川省交通运输厅公路规划勘察设计研究院 | Concave rib weathering resistant steel-concrete combination bridge deck |
| CN109024216A (en) * | 2018-09-30 | 2018-12-18 | 西南交通大学 | Composite Steel-Concrete Bridges structure and combined bridge deck |
| CN111877156A (en) * | 2020-07-28 | 2020-11-03 | 长安大学 | Half-opening shear connector used in corrugated steel combined bridge deck |
| CN111910516A (en) * | 2020-07-28 | 2020-11-10 | 长安大学 | Composite pin shear connector used in corrugated steel composite bridge deck slab |
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