CN210657993U - Overhanging prefabricated bridge deck connection structure - Google Patents
Overhanging prefabricated bridge deck connection structure Download PDFInfo
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- CN210657993U CN210657993U CN201920287433.8U CN201920287433U CN210657993U CN 210657993 U CN210657993 U CN 210657993U CN 201920287433 U CN201920287433 U CN 201920287433U CN 210657993 U CN210657993 U CN 210657993U
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Abstract
The utility model relates to a connection structure of overhanging prefabricated bridge deck slab, which comprises a prefabricated bridge deck slab, a slab bottom bearing beam, a beam side supporting plate, an assembled side form and a tip hanging mould; a beam side supporting plate is arranged on the outer side of the plate bottom bearing beam, a cantilever supporting beam is arranged between the plate bottom bearing beam and the prefabricated bridge deck, and a prestressed supporting rib is arranged between the cantilever supporting beam and the beam side supporting plate; side limiting grooves connected with the assembled side molds are respectively arranged on the prefabricated bridge deck and the beam side supporting plates; 2-4 bottom die hanging rods connected with the assembled bottom die are arranged on the cantilever supporting beam; a side die connecting rod is arranged between the two opposite assembled side dies; and grouting is performed in a cavity formed by enclosing the assembled side die, the assembled bottom die and the plate bottom bearing beam to form the light filling body. The utility model has the advantages that: the utility model discloses prefabricated decking cantilever end connection structure's joint strength is high, the wholeness is good, can effectively improve the durability of structure on the basis that promotes structure bearing capacity and stability.
Description
Technical Field
The utility model relates to a can promote the prefabricated decking connection structure of encorbelmenting of the wholeness of site operation quality and construction structures, reduce the degree of difficulty of formwork erection location, improve cantilever end connection structure durability belongs to the bridge engineering field, is applicable to prefabricated decking installation engineering.
Background
With the rapid development of bridge engineering construction in China, the prefabricated bridge deck is widely applied with the advantages of high construction efficiency, good environmental protection effect and the like. However, in the installation and construction of the prefabricated bridge deck, the problems that the connection strength and the integrity of the cantilever end connection structure of the prefabricated bridge deck are not enough, the bearing capacity and the stability of the structure are poor, the durability of the structure is difficult to guarantee, and the like are not well solved.
A take prefabricated decking connection structure of U type muscle that exists among the prior art includes: two prefabricated bridge deck slabs with U-shaped ribs; a plurality of annular reinforcing bars; a plurality of transverse reinforcing steel bars; each U type muscle of two prefabricated decking is in vertical mutual disposition, and the annular reinforcing bar is placed in the centre of each U type muscle of two prefabricated decking, and the annular reinforcing bar forms the annular frame on the vertical position with the U type muscle of two prefabricated decking, crosses horizontal reinforcing bar in the annular frame, forms two steel reinforcement cages from this. The large area deck may be divided into small cells in both the transverse and longitudinal directions, with a connecting region formed between each adjacent small cell. The structure improves the connection strength and integrity of the cantilever end connection structure of the prefabricated bridge deck slab, improves the bearing capacity and stability of the structure, improves the durability of the structure, improves the concrete pouring construction efficiency and the like, and has the improvement.
In view of this, the present invention is directed to a cantilever prefabricated bridge deck connection structure capable of improving the connection strength and integrity of the cantilever end connection structure of the prefabricated bridge deck and improving the structural durability.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming not enough among the prior art, providing one kind not only can promote the wholeness of site operation quality and construction structure, can reduce the environmental protection degree of difficulty moreover, improve the prefabricated decking connection structure of encorbelmenting of site operation efficiency.
The overhanging prefabricated bridge deck connecting structure comprises a prefabricated bridge deck, a slab bottom bearing beam, a beam side supporting plate, an assembled side mold and an end hanging mold; a beam side supporting plate is arranged on the outer side of the plate bottom bearing beam, a cantilever supporting beam is arranged between the plate bottom bearing beam and the prefabricated bridge deck, and a prestressed supporting rib is arranged between the cantilever supporting beam and the beam side supporting plate; side limiting grooves connected with the assembled side molds are respectively arranged on the prefabricated bridge deck and the beam side supporting plates; 2-4 bottom die hanging rods connected with the assembled bottom die are arranged on the cantilever supporting beam; a side die connecting rod is arranged between the two opposite assembled side dies; grouting in a cavity formed by enclosing an assembled side die, an assembled bottom die and a plate bottom bearing beam to form a light filling body; connecting ribs at the plate ends at the joints of the cantilever ends of the prefabricated bridge deck plates are connected through end rib connecting bolts, and the end rib connecting bolts at the same elevation are connected into a whole through strip-shaped bolt plates; an end hanging die is arranged on the prefabricated bridge deck, and the end hanging die and the prefabricated bridge deck are firmly connected through a die hanging hoop plate, a die hanging fastening rod and a die hanging bolt rib; grouting in a cavity enclosed by the end hanging die and the prefabricated bridge deck to form joint grouting body.
Preferably, the method comprises the following steps: the assembled side die and the assembled bottom die are made of cement concrete materials or plastic plates or rubber plates, and the assembled side die is provided with a side connecting tenon and a bottom die limiting groove.
Preferably, the method comprises the following steps: the cross section of the end rib connecting bolt is U-shaped and is arranged on the outer side of the connected plate end connecting rib, and the top end of the end rib connecting bolt is connected with the strip-shaped bolt plate through a bolt.
Preferably, the method comprises the following steps: the end hanging die is composed of two L-shaped hanging die strip plates, and a hanging die adjusting body is arranged between the hanging die strip plates.
The utility model has the advantages that:
(1) the utility model discloses prefabricated decking cantilever end connection structure's joint strength is high, the wholeness is good, can effectively improve the durability of structure on the basis that promotes structure bearing capacity and stability.
(2) The utility model discloses concrete placement efficiency of construction is high, can effectively improve concrete placement construction environment when reducing the construction degree of difficulty of pouring.
Drawings
FIG. 1 is a schematic longitudinal section view of the connection structure of the overhanging prefabricated bridge deck of the present invention;
FIG. 2 is a schematic longitudinal cross-section of a beam at a side gusset;
FIG. 3 is a schematic longitudinal sectional view of the fabricated base mold;
FIG. 4 is a longitudinal cross-sectional view of a seam of a prefabricated deck slab;
fig. 5 is a schematic view of the end hang die mounting structure of fig. 4.
Description of reference numerals: 1-prefabricating a bridge deck; 2-a slab bottom carrier bar; 3-beam side supporting plates; 4-cantilever beam support; 5-prestress bracing ribs; 6, assembling a side die; 7-side limiting groove; 8, assembling a bottom die; 9-bottom die hanging rod; 10-side die link; 11-a light weight filler; 12-end rib connecting bolts; 13-strip-shaped bolt plates; 14-hanging a mould at the end part; 15-hanging a mold hoop plate; 16-hanging a mould fastening rod; 17-hanging a mold bolt rib; 18-joint grouting body; 19-connecting the plate ends with ribs; 20-plate side connecting falcon; 21-bottom die limiting groove; 22-hanging a mould adjusting body; 23-hanging mould slat.
Detailed Description
The present invention will be further described with reference to the following examples. The following description of the embodiments is merely provided to aid in understanding the invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Referring to fig. 1 to 5, in the connection structure of the overhanging prefabricated bridge deck, a beam side support plate 3 is arranged on the outer side of a slab bottom carrier beam 2, a cantilever support beam 4 is arranged between the precast bridge deck 1 and the cantilever support beam 3, and a prestressed support rib 5 is arranged between the cantilever support beam 4 and the beam side support plate 3; side limiting grooves 7 connected with the assembled side molds 6 are respectively arranged on the prefabricated bridge deck 1 and the beam side supporting plate 3; 2-4 bottom die hanging rods 9 connected with an assembled bottom die 8 are arranged on the cantilever supporting beam 4; a side die connecting rod 10 is arranged between the two opposite assembled side dies 6; grouting a cavity enclosed by the assembled side die 6, the assembled bottom die 8 and the plate bottom bearing beam 2 to form a light filling body 11; connecting plate end connecting ribs 19 at cantilever end joints of the prefabricated bridge deck 1 through end rib connecting bolts 12, and connecting the end rib connecting bolts 12 at the same elevation into a whole through strip-shaped bolt plates 13; arranging an end hanging die 14 on the prefabricated bridge deck 1, and firmly connecting the end hanging die 14 with the prefabricated bridge deck 1 through a hanging die hoop plate 15, a hanging die fastening rod 16 and a hanging die bolt rib 17; and grouting the cavity enclosed by the end hanging die 14 and the prefabricated bridge deck 1 to form a joint grouting body 18.
The thickness of the prefabricated bridge deck 1 is 150mm, the width is 3m, the length is 6m, a reinforced concrete material is adopted, and the concrete strength grade is C55.
The plate bottom carrier bar 2 is formed by rolling a steel plate with the thickness of 2cm, the width of the plate bottom carrier bar is 400mm, the height of the plate bottom carrier bar is 600mm, and the strength grade of the steel plate is Q235.
The beam side supporting plate 3 is made of a steel plate with the thickness of 20mm, the width of the steel plate is 15cm, and the steel plate is vertically welded and connected with the plate bottom bearing beam 2.
The cantilever supporting beam 4 is formed by rolling a steel plate with the thickness of 1cm, and the transverse section of the cantilever supporting beam is in a right-angled trapezoid shape.
The prestressed bracing rib 5 is made of bolts and screws with the diameter of 30 mm.
The assembled side die 6 and the assembled bottom die 8 both adopt reinforced concrete templates, the thickness is 3cm, and the concrete strength grade is C35.
The depth of the side surface limiting groove 7 is 3cm, and the side surface limiting groove is formed by rolling a steel plate with the thickness of 2 mm.
The bottom die hanging rod 9 and the side die connecting rod 10 both adopt screws with the diameter of 30 mm.
The light filling body 11 has a weight of 0.7g/cm3The foam concrete.
The cross section of the end rib connecting bolt 12 is U-shaped, the end rib connecting bolt is arranged on the outer side of the connected plate end connecting rib 19, the top end of the end rib connecting bolt is connected with the strip-shaped bolt plate 13 through a bolt, and the diameter of the end rib connecting bolt is 12 mm.
The end hanging die 14 is composed of two L-shaped hanging die strip plates 23, and the hanging die strip plates 23 are alloy templates with the thickness of 4 mm.
The hanging mould hoop plate 15 is made of a steel plate with the thickness of 2 mm.
The mold hanging fastening rod 16 is made of a screw material with a diameter of 30 mm.
The hanging mould bolt rib 17 is made of a bolt with the diameter of 30 mm.
The joint grouting body 18 is made of micro-expansive concrete with the strength grade of C50.
The transverse section of the board-side connecting falcon 20 is in an isosceles trapezoid shape, the bottom width is 10cm, and the height is 15 cm.
The depth of the bottom die limiting groove 21 is 10cm, and the bottom die limiting groove is formed by rolling a steel plate with the thickness of 2 mm.
The hanging mold regulator 22 is made of a rubber plate with a thickness of 4 mm.
Claims (4)
1. Prefabricated decking connection structure encorbelments, its characterized in that: the prefabricated bridge deck slab comprises a prefabricated bridge deck slab (1), a slab bottom bearing beam (2), beam side supporting plates (3), assembled side molds (6) and end hanging molds (14); a beam side supporting plate (3) is arranged on the outer side of the plate bottom bearing beam (2), a cantilever supporting beam (4) is arranged between the plate bottom bearing beam (2) and the prefabricated bridge deck (1), and a prestress supporting rib (5) is arranged between the cantilever supporting beam (4) and the beam side supporting plate (3); side limiting grooves (7) connected with the assembled side molds (6) are respectively arranged on the prefabricated bridge deck (1) and the beam side supporting plates (3); 2-4 bottom die hanging rods (9) connected with the fabricated bottom die (8) are arranged on the cantilever supporting beam (4); a side mould connecting rod (10) is arranged between the two opposite assembled side moulds (6); grouting in a cavity formed by enclosing an assembled side die (6), an assembled bottom die (8) and a plate bottom bearing beam (2) to form a light filling body (11); plate end connecting ribs (19) at the joints of cantilever ends of the prefabricated bridge deck (1) are connected through end rib connecting bolts (12), and the end rib connecting bolts (12) at the same elevation are connected into a whole through strip-shaped bolt plates (13); an end hanging die (14) is arranged on the prefabricated bridge deck (1), and the end hanging die (14) is firmly connected with the prefabricated bridge deck (1) through a die hanging hoop plate (15), a die hanging fastening rod (16) and a die hanging bolt rib (17); and grouting in a cavity enclosed by the end hanging die (14) and the prefabricated bridge deck (1) to form a joint grouting body (18).
2. The cantilever precast bridge panel connection structure according to claim 1, wherein: the assembled side die (6) and the assembled bottom die (8) are made of cement concrete materials or plastic plates or rubber plates, and the assembled side die (6) is provided with a side connecting tenon (20) and a bottom die limiting groove (21).
3. The cantilever precast bridge panel connection structure according to claim 1, wherein: the cross section of the end rib connecting bolt (12) is U-shaped and is arranged on the outer side of the connected plate end connecting rib (19), and the top end of the end rib connecting bolt (12) is connected with the strip-shaped bolt plate (13) through a bolt.
4. The cantilever precast bridge panel connection structure according to claim 1, wherein: the end hanging die (14) is composed of two L-shaped hanging die strip plates (23), and a hanging die adjusting body (22) is arranged between the hanging die strip plates (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920287433.8U CN210657993U (en) | 2019-03-06 | 2019-03-06 | Overhanging prefabricated bridge deck connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920287433.8U CN210657993U (en) | 2019-03-06 | 2019-03-06 | Overhanging prefabricated bridge deck connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210657993U true CN210657993U (en) | 2020-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920287433.8U Active CN210657993U (en) | 2019-03-06 | 2019-03-06 | Overhanging prefabricated bridge deck connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210657993U (en) |
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2019
- 2019-03-06 CN CN201920287433.8U patent/CN210657993U/en active Active
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