CN112627027A - Lightweight integrated laminated bridge deck - Google Patents
Lightweight integrated laminated bridge deck Download PDFInfo
- Publication number
- CN112627027A CN112627027A CN202011372697.7A CN202011372697A CN112627027A CN 112627027 A CN112627027 A CN 112627027A CN 202011372697 A CN202011372697 A CN 202011372697A CN 112627027 A CN112627027 A CN 112627027A
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- China
- Prior art keywords
- bridge deck
- prefabricated
- cast
- plate
- prefabricated thin
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- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
Abstract
The invention relates to a light integrated superposed bridge deck, and belongs to the technical field of bridge engineering. The light integrated overlapped bridge deck is arranged on the bearing steel beams uniformly arranged at a plurality of intervals and comprises a prefabricated thin plate, a cast-in-place plate and connecting members. The prefabricated thin plate is in a groove-shaped structure form with a thin middle part and a thick periphery, and the middle thickness of the prefabricated thin plate is half of the thickness of the whole designed bridge deck plate, so that the hoisting weight and strength of the conventional bridge deck plate and the hoisting construction difficulty are reduced; the connecting component bonds the prefabricated thin plate and the cast-in-place plate together to enhance the bonding strength of the prefabricated thin plate and the cast-in-place plate; the cast-in-place plate ensures that the whole bridge deck plate reaches the designed thickness and strength and ensures that the prefabricated thin plate, the cast-in-place plate and the connecting member form an integrated bridge deck. The bridge deck effectively solves the problems of large construction weight, high hoisting strength and large construction difficulty of the prefabricated bridge deck, can reduce the construction period, and strengthens the integrity and the bearing capacity of the whole bridge deck.
Description
Technical Field
The invention relates to the technical field of bridge engineering, in particular to a lightweight integrated superposed bridge deck.
Background
The composite beam structure has the advantages of reasonable material utilization, economy, convenient construction and the like, and can be widely applied to the fields of roads, bridges and buildings. The construction site pouring of the concrete bridge deck needs to consume a long time, and consumes a large amount of manpower and material resources. The prefabricated assembling construction can greatly reduce the field operation amount, the construction speed is accelerated, the prefabricated bridge deck is usually stored for more than three months before installation, the adverse effect of the shrinkage and creep of a concrete slab on a steel main beam is reduced, and the steel beam and the concrete bridge deck can be connected together to form the combined beam only by pouring a small amount of seams and holes reserved in the shear grooves after the bridge deck is prefabricated and installed.
The bridge deck plate is provided with the bearing structure, so that the rigidity of a fulcrum of the bridge deck plate can be increased, and the negative bending moment can be absorbed, so that the midspan positive bending moment of the bridge deck plate is reduced, the force line is gentle, the secondary internal force is reduced, and reinforcement and demolding are facilitated. In addition, the bearing not only improves the torsional rigidity and the bending rigidity of the section, reduces the torsional shear stress and the distortion stress, but also increases the height of a seam notch and enhances the reliability of the seam connection of the precast slabs at the upper flange of the steel beam. But the construction of the bearing increases the complexity of the construction of the combined beam bridge template.
When the prefabricated bridge deck plate continuously passes through the steel beam, the structure is frequently adopted, if group welding connection is adopted in a shear groove reserved in the prefabricated bridge deck plate, the welding nail connecting pieces are arranged in groups at smaller intervals, and the welding nail groups are arranged along the longitudinal direction of the bridge at larger intervals, the group nail effect can be generated due to the excessively small interval arrangement of the welding nails, the mechanical property of a single welding nail in the group nail connecting pieces is reduced compared with that of the commonly arranged welding nails, so that the bearing capacity of the single welding nail is reduced, the average bearing capacity of the single welding nail is larger than the shearing resistance limit bearing capacity of the welding nail calculated by national specifications, the shearing resistance of the welding nail can be cut in the using process, and the problems of reducing the shearing resistance rigidity of the combined section connecting piece and the like can.
Disclosure of Invention
The lightweight integrated superposed bridge deck provided by the invention has the advantages of reasonable structure and high strength, can improve the fastening performance of connection between the bridge decks to a great extent, enhances the bearing capacity of the bridge deck structure, effectively avoids the group nail effect of the prefabricated slabs and the gaps between the prefabricated slabs and the bearing steel beams, and improves the durability of the bridge deck.
According to one aspect of the invention, the bridge deck is arranged on a plurality of bearing beams uniformly arranged at intervals, and comprises prefabricated thin plates and cast-in-place plates, two ends of each prefabricated thin plate are erected on the two bearing beams, the middle part of one side, close to the bearing beams, of each prefabricated thin plate is upwards recessed to form a groove, connecting members are arranged on the edges of the prefabricated thin plates, the connecting members of the adjacent prefabricated thin plates are connected with each other, a filling cavity is formed between the two prefabricated thin plates on the same bearing beam, the cast-in-place plates are integrally formed and arranged on the upper parts of the adjacent prefabricated thin plates, and the cast-in-place plates are filled in the filling cavities.
On the basis of the scheme, preferably, the groove is formed in the middle of the prefabricated thin plate, so that the edge of the prefabricated thin plate forms a bearing part, the thickness of the bearing part is larger than that of the middle of the prefabricated thin plate, and the prefabricated thin plate is connected with the bearing beam through the bearing part.
On the basis of the scheme, preferably, a rubber pad for adjustment is arranged between the bearing part and the bearing beam.
On the basis of the scheme, the cross section of the groove is preferably isosceles trapezoid.
On the basis of the scheme, the connecting component preferably comprises a reinforcing rib and a shear pin.
On the basis of the scheme, preferably, the adjacent prefabricated thin plates are connected with each other through reinforcing ribs, and the shear nails are arranged in gaps among the reinforcing ribs.
On the basis of the scheme, the prefabricated thin plate preferably extends upwards to form a U-shaped hoisting reinforcing steel bar, and the end part of the prefabricated thin plate is bent to form an L-shaped tie reinforcing steel bar to be bonded with the cast-in-place plate.
According to the lightweight integrated superposed bridge deck, the prefabricated thin plate and the cast-in-place plate are combined, and the groove is formed in the bottom of the prefabricated thin plate, so that the weight, the strength and the difficulty of hoisting construction operation of the prefabricated plate are reduced; connecting the prefabricated thin plate and the prefabricated thin plate into a whole by welding the reinforcing ribs together; the prefabricated thin plate and the cast-in-place plate are connected together to form a whole by arranging L-shaped tie bars on the upper surface of the prefabricated thin plate; the deck slab and the load beam are connected together by placing shear studs between the rebar gaps.
The light integrated laminated bridge deck provided by the invention solves the problems of large weight, high operation strength, high construction difficulty and high shear strength of the welding nails of a prefabricated bridge deck, and solves the problems of long construction period, large mold quantity and difficulty of a cast-in-place bridge deck. The lightweight integrated laminated bridge deck slab combining the advantages of the two kinds of slabs can reduce hoisting strength and difficulty, reduce construction period and cost, simultaneously ensure the fastening performance of integral connection of the slab, and enhance the bearing capacity of a bridge deck structure.
Drawings
FIG. 1 is a front view of a lightweight integrated laminated bridge deck of the present invention;
FIG. 2 is a top view of the lightweight integrated composite decking of the present invention;
FIG. 3 is a schematic view of the bonding between the preformed sheets of FIG. 2;
FIG. 4 is a schematic longitudinal cross-sectional view of the prefabricated sheet of FIG. 3;
fig. 5 is a schematic transverse cross-section of the prefabricated sheet of fig. 3.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Referring to fig. 1, with reference to fig. 2, 3, 4 and 5, the lightweight integrated laminated bridge deck according to the present invention includes a prefabricated thin slab 20 and a cast-in-place slab 30, and is disposed on a plurality of uniformly spaced load-bearing steel beams 10.
The prefabricated thin plate 20 is of a groove-shaped structure with a thin middle part and thick periphery, namely, the middle part of the prefabricated thin plate 20, which is close to the end surface of one side of the bearing steel beam 10, is upwards sunken to form a groove 21, so that the aim of reducing the integral gravity of the bridge deck is fulfilled, and the hoisting of the bridge deck is facilitated.
The periphery and the upper surface of the prefabricated thin plate 20 of the invention extend out of connecting components, the connecting components comprise reinforcing ribs 22 and shear nails 26, and the connecting components of the adjacent prefabricated thin plates 20 are connected with each other; a filling cavity 23 is formed between two prefabricated thin plates 20 on the same bearing steel beam 10, a cast-in-place plate 30 is integrally formed on the upper parts of the adjacent prefabricated thin plates 20, and the cast-in-place plate 30 is filled in the filling cavity 23.
The prefabricated thin plate 20 is of a groove-shaped structure with a thin middle part and a thick periphery, the middle of the bottom of the prefabricated thin plate 20 is upwards sunken to form a groove 21, so that the edge of the prefabricated thin plate 20 forms a bearing part 25, the thickness of the bearing part 25 is larger than that of the middle of the prefabricated thin plate 20, and the prefabricated thin plate 20 is connected with the bearing steel beam 10 through the bearing part 25.
A rubber pad 11 for adjusting the balance of the prefabricated thin plate 20 is arranged between the bearing part 25 and the bearing steel beam 10. The prefabricated thin plate 20 and the prefabricated thin plate 20 are welded and connected together through reinforcing ribs 22 protruding from the periphery of the prefabricated thin plate. The gaps between the welded-together reinforcing bars 22 are provided with shear studs 26. The prefabricated thin plate 20 extends upwards out of the U-shaped hoisting reinforcing steel bars 23, and the L-shaped tie reinforcing steel bars 24 with the ends bent into L shapes are bonded with the cast-in-place plate 30. The cross section of the groove 21 of the invention is isosceles trapezoid.
The principle of the light integrated superimposed bridge deck of the invention is as follows:
according to the lightweight integrated laminated bridge deck, the prefabricated thin plate 20 is combined with the cast-in-place plate 30, so that the construction operation difficulty of hoisting the deck is reduced, the problems of excessive templates and large engineering quantity caused by cast-in-place can be solved through the prefabricated thin plate 20, the prefabricated thin plate 20 can be connected through the cast-in-place plate 30, and the connection strength between the prefabricated thin plates 20 is ensured. Meanwhile, the prefabricated thin plate 20 is arranged on the bearing steel beam 10, so that the prefabricated thin plate 20 can form a bottom template for the cast-in-place plate 30, when the cast-in-place is carried out, the cast-in-place can be completed only by arranging templates on the periphery of the bridge deck plate, and the casting is convenient and rapid. The four peripheries of the prefabricated thin plates 20 are provided with the reinforcing ribs 22, the prefabricated thin plates 20 can be connected through the mutual welding connection of the reinforcing ribs 22, the reinforcing ribs 22 are mutually connected to form a middle rib of the cast-in-place plate 30, the connection strength of the prefabricated thin plates is further ensured, and the adjacent prefabricated thin plates 20 are formed into a whole, so that the connection strength of the prefabricated thin plates 20 is ensured, and the bearing strength of the bridge deck is improved.
Wherein, the shear nails 26 are arranged in the gaps between the reinforcing ribs 22 welded together, so as to enhance the shear resistance of the bridge deck.
It should be noted that the groove 21 of the present invention is disposed in the middle of the prefabricated thin plate 20, so that the edge of the prefabricated thin plate 20 forms a bearing part 24, the thickness of the bearing part 24 is greater than the thickness of the middle of the prefabricated thin plate 20, and the prefabricated thin plate 20 and the bearing steel beam 10 are connected through the bearing part 24. Namely, the structural design that the thickness of the bearing part 24 is larger than the thickness of the middle part of the prefabricated thin plate 20 is adopted to ensure the acting strength between the prefabricated thin plate 20 and the bearing steel beam 10.
In view of the fact that the end face of a part of the bearing steel beam 10 cannot be completely guaranteed and designed, in order to guarantee the stress balance between the bearing part 24 and the bearing steel beam 10, the rubber gasket for adjustment is arranged between the bearing part 24 and the bearing steel beam 10, and the flatness of the connection between the bearing part 24 and the bearing steel beam 10 is changed by adjusting the rubber gasket, so that the overall connection strength of the bearing steel beam 10 is improved.
It is worth mentioning that the cross section of the groove 21 of the present invention is preferably designed to be isosceles trapezoid-shaped.
According to the lightweight integrated laminated bridge deck, the bottom of each prefabricated thin plate 20 is provided with the groove 21 so as to reduce the overall weight of the prefabricated thin plate, the edge of each prefabricated thin plate 20 is provided with the reinforcing rib 22, the reinforcing ribs 22 of two adjacent prefabricated thin plates 20 are connected together, the cast-in-place plate 30 is filled into the filling cavity 23 formed by the two adjacent prefabricated thin plates 20 and the bearing steel beam 10, the plurality of connected prefabricated thin plates 20 are integrally connected through the combination of the reinforcing ribs 22 and the cast-in-place plate 30, the overall weight of the prefabricated thin plates is reduced, the hoisting strength is reduced, the fastening performance of the integral connection is guaranteed, and the bearing capacity of a bridge deck structure is enhanced.
Finally, the method of the present application is only a preferred embodiment and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a light integration coincide decking, the decking sets up on the bearer beam that a plurality of intervals evenly set up, its characterized in that, the decking includes prefabricated sheet metal and cast-in-place board, two are set up at the both ends of prefabricated sheet metal on the bearer beam, just the prefabricated sheet metal is close to the middle part of bearer beam one side is upwards sunken to form the recess, the edge of prefabricated sheet metal is equipped with connecting elements, and is adjacent the connecting elements interconnect of prefabricated sheet metal, and is same two on the bearer beam form the packing chamber between the prefabricated sheet metal, cast-in-place board integrated into one piece sets up in adjacent prefabricated sheet metal upper portion, just cast-in-place board fill in fill the chamber.
2. A lightweight integrated laminated bridge deck according to claim 1, wherein said groove is provided in the middle of said prefabricated sheet such that the edges of said prefabricated sheet form load-bearing portions, said load-bearing portions having a thickness greater than the thickness of the middle of said prefabricated sheet, said prefabricated sheet and said load-bearing beams being joined by said load-bearing portions.
3. A lightweight integrated laminated bridge deck according to claim 2, wherein rubber pads for adjustment are provided between said load-bearing section and said load-bearing beams.
4. A lightweight integrated laminated bridge deck according to claim 1, wherein said channels are isosceles trapezoids in cross-section.
5. A lightweight integrated laminated bridge deck according to claim 1, wherein said connecting members comprise reinforcing bars and shear studs.
6. A lightweight integrated laminated bridge deck according to claim 5, wherein adjacent sheets are interconnected by reinforcing ribs, and said shear pins are disposed in the gaps between said reinforcing ribs.
7. The lightweight integrated laminated bridge deck as recited in claim 1, wherein said prefabricated sheets are extended upward to form U-shaped hanging bars, and the ends of said prefabricated sheets are bent to form L-shaped tie bars to be bonded to the cast-in-place slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011372697.7A CN112627027A (en) | 2020-11-30 | 2020-11-30 | Lightweight integrated laminated bridge deck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011372697.7A CN112627027A (en) | 2020-11-30 | 2020-11-30 | Lightweight integrated laminated bridge deck |
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| Publication Number | Publication Date |
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| CN112627027A true CN112627027A (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011372697.7A Pending CN112627027A (en) | 2020-11-30 | 2020-11-30 | Lightweight integrated laminated bridge deck |
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| CN (1) | CN112627027A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113529569A (en) * | 2021-06-30 | 2021-10-22 | 中国建筑第五工程局有限公司 | Double-deck slab structure and construction method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11222814A (en) * | 1998-02-06 | 1999-08-17 | Fuji Ps Corp | Steel composite bridge using precast prestress concrete floor slab |
| JP2003268720A (en) * | 2002-03-19 | 2003-09-25 | Joban Kosan Kk | Joint structure for prestressed concrete floor plates |
| CN106638304A (en) * | 2016-12-30 | 2017-05-10 | 东南大学 | UHPC-common-concrete-lamination composite bridge-deck-slab construction and constructing method thereof |
| CN106758813A (en) * | 2016-12-30 | 2017-05-31 | 东南大学 | For the UHPC wells formula rib floorings and its construction method of steel reinforced concrete composite beam bridge |
| CN109457589A (en) * | 2018-11-23 | 2019-03-12 | 中交公路规划设计院有限公司 | Assembling I-shaped composite beam bridge |
| CN109881833A (en) * | 2019-01-23 | 2019-06-14 | 清华大学 | The folding plate combined beam of longitudinal shear resistance reinforcing bar and prefabricated board separation |
| CN211256620U (en) * | 2019-08-30 | 2020-08-14 | 福州旌研工程科技有限公司 | Assembled combination case roof beam |
| CN211368347U (en) * | 2019-09-17 | 2020-08-28 | 中铁第四勘察设计院集团有限公司 | Bridge deck and steel-concrete composite beam |
| CN211848855U (en) * | 2019-10-31 | 2020-11-03 | 浙江交通职业技术学院 | Novel swift formula modularization decking seam structure |
-
2020
- 2020-11-30 CN CN202011372697.7A patent/CN112627027A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11222814A (en) * | 1998-02-06 | 1999-08-17 | Fuji Ps Corp | Steel composite bridge using precast prestress concrete floor slab |
| JP2003268720A (en) * | 2002-03-19 | 2003-09-25 | Joban Kosan Kk | Joint structure for prestressed concrete floor plates |
| CN106638304A (en) * | 2016-12-30 | 2017-05-10 | 东南大学 | UHPC-common-concrete-lamination composite bridge-deck-slab construction and constructing method thereof |
| CN106758813A (en) * | 2016-12-30 | 2017-05-31 | 东南大学 | For the UHPC wells formula rib floorings and its construction method of steel reinforced concrete composite beam bridge |
| CN109457589A (en) * | 2018-11-23 | 2019-03-12 | 中交公路规划设计院有限公司 | Assembling I-shaped composite beam bridge |
| CN109881833A (en) * | 2019-01-23 | 2019-06-14 | 清华大学 | The folding plate combined beam of longitudinal shear resistance reinforcing bar and prefabricated board separation |
| CN211256620U (en) * | 2019-08-30 | 2020-08-14 | 福州旌研工程科技有限公司 | Assembled combination case roof beam |
| CN211368347U (en) * | 2019-09-17 | 2020-08-28 | 中铁第四勘察设计院集团有限公司 | Bridge deck and steel-concrete composite beam |
| CN211848855U (en) * | 2019-10-31 | 2020-11-03 | 浙江交通职业技术学院 | Novel swift formula modularization decking seam structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113529569A (en) * | 2021-06-30 | 2021-10-22 | 中国建筑第五工程局有限公司 | Double-deck slab structure and construction method thereof |
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Application publication date: 20210409 |