CN216615493U - Wet seam connection structure of prefabricated decking - Google Patents
Wet seam connection structure of prefabricated decking Download PDFInfo
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- CN216615493U CN216615493U CN202123454030.4U CN202123454030U CN216615493U CN 216615493 U CN216615493 U CN 216615493U CN 202123454030 U CN202123454030 U CN 202123454030U CN 216615493 U CN216615493 U CN 216615493U
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Abstract
The utility model relates to a prefabricated bridge deck slab wet joint connection structure uses in bridge construction technology's field, and it includes the steel sheet, locates the weld nail of steel sheet one end and locates the epoxy mortar of the steel sheet other end and lays the district, and the steel sheet is prefabricated in the bottom surface of one of them bridge deck slab in the one end of weld nail, and the steel sheet passes through epoxy mortar in the one end that epoxy mortar laid the district and connects in the bottom surface of another bridge deck slab, the steel sheet is equipped with a plurality of embedded bars in the one end that epoxy mortar laid the district, with the steel sheet is equipped with a plurality of prefabricated holes on the bridge deck slab that the one end in epoxy mortar laid the district is connected, embedded bar with prefabricated hole one-to-one sets up, embedded bar inserts and locates prefabricated downthehole, the rethread cast in situ concrete is right prefabricated hole carries out the shutoff. The firmness that steel sheet and decking are connected can be improved to this application.
Description
Technical Field
The application relates to the field of bridge construction technology, in particular to a wet joint connecting structure of a prefabricated bridge deck.
Background
The wet joint is a joint formed by prefabricating prestressed concrete beam bodies in blocks, splicing cantilevers into a long-span continuous beam and connecting the beam blocks into a whole by adopting cast-in-place concrete between the beam bodies.
Chinese patent No. CN211922293U discloses a wet joint connecting structure of a prefabricated bridge deck slab, which comprises a steel plate, a welding nail and a steel bar hanging ring; the welding nails are welded and fixed at one end of the steel plate and are pre-embedded at one end of the bridge deck when one bridge deck is prefabricated, so that one end of the steel plate, which is provided with the welding nails, is attached to the bottom surface of the bridge deck; the other end of the steel plate is provided with an epoxy mortar laying area, the epoxy mortar laying area is used for laying epoxy mortar, and the shortest distance between the epoxy mortar laying area and the welding nails is greater than the width of the wet joint of two adjacent bridge decks; the steel bar hanging ring is welded and fixed between the welding nail and the epoxy mortar laying area and close to one side of the epoxy mortar laying area; the welding nails, the steel bar hanging rings and the epoxy mortar laying area are located on the same surface of the steel plate.
In view of the above-mentioned related art, the inventor believes that one end of a steel plate is prefabricated on the bottom surface of one of the deck slabs by means of a welding nail, and thus, stability is ensured, while the other end of the steel plate is connected with the bottom surface of the other deck slab by means of pouring epoxy mortar in an epoxy mortar paving area, and since the epoxy mortar is affected by various factors such as temperature and weather, wrinkles, bubbles and even cracks may occur, and thus, the firmness of the connection between the steel plate and the deck slab may be affected.
SUMMERY OF THE UTILITY MODEL
In order to improve the poor problem of the fastness of being connected of steel sheet and decking, this application provides a prefabricated decking wet joint connection structure.
The application provides a wet seam connection structure of prefabricated decking adopts following technical scheme:
the utility model provides a prefabricated bridge deck slab wet joint connection structure, includes the steel sheet, locates the weld nail of steel sheet one end and locates the epoxy mortar of the steel sheet other end and lays the district, and the steel sheet is prefabricated in the bottom surface of one of them bridge deck slab in the one end of weld nail, and the steel sheet passes through epoxy mortar in the one end that epoxy mortar laid the district and connects in the bottom surface of another bridge deck slab, the steel sheet is equipped with a plurality of embedded bars in the one end that epoxy mortar laid the district, with the steel sheet is equipped with a plurality of prefabricated holes on the bridge deck slab that the one end in epoxy mortar laid the district and connect, embedded bar with prefabricated hole one-to-one sets up, embedded bar inserts and locates in prefabricated downthehole, the rethread cast in situ concrete is right prefabricated hole carries out the shutoff.
Through adopting above-mentioned technical scheme, the steel sheet is prefabricated in the bottom surface of one of them decking in the one end of weld nail, and the steel sheet passes through epoxy mortar in the one end of epoxy mortar laying area and connects in the bottom surface of another decking, in the work progress, with inserting of embedded bar one-to-one establish to prefabricated downthehole, rethread cast in situ concrete carries out the shutoff to prefabricated hole, is connected embedded bar and this decking as an organic whole after the concrete setting, consequently, can improve the fastness that steel sheet and this decking are connected.
Optionally, a distance is provided between the embedded steel bar and the hole wall of the prefabricated hole, and the embedded steel bar sinks in the prefabricated hole.
Through adopting above-mentioned technical scheme, this project organization is for the convenience concrete can pour in the prefabricated hole smoothly, makes the concrete be connected embedded reinforcement and this decking as an organic whole fast.
Optionally, a counter bore is arranged at the prefabricated hole on the top surface of the bridge deck, the counter bore is arranged along the periphery of the prefabricated hole, and the counter bore is communicated with the prefabricated hole.
By adopting the technical scheme, the counter bore enlarges the caliber of the prefabricated hole, and concrete is convenient to pour towards the prefabricated hole.
Optionally, the embedded steel bars extend into the counter bores, anti-pulling thread sleeves are arranged in the counter bores, the anti-pulling thread sleeves are in threaded sleeve connection with the embedded steel bars, and a distance is reserved between the anti-pulling thread sleeves and the wall of the counter bores.
Through adopting above-mentioned technical scheme, before towards prefabricated hole pouring concrete, cup joint resistance to plucking swivel nut screw thread on embedded steel bar, treat towards counter bore and prefabricated hole pouring concrete after, can be connected embedded steel bar, resistance to plucking swivel nut and this decking as an organic whole. The anti-pulling force of the embedded steel bars in the bridge deck slab can be increased by arranging the anti-pulling thread sleeves, and further the firmness of connection of the steel plate and the bridge deck slab is improved.
Optionally, a plurality of mortar grooves are densely distributed on the bottom surface of the bridge deck plate connected with the steel plate at one end of the epoxy mortar laying area, and the longitudinal sections of the mortar grooves are of a T-shaped structure.
Through adopting above-mentioned technical scheme, a plurality of mortar grooves for T type structure can promote the adhesion of epoxy mortar on this decking to make epoxy mortar be difficult for coming off from the bottom surface of this decking, also can promote the fastness that steel sheet and this decking are connected.
Optionally, the adjacent mortar grooves are communicated with each other.
Through adopting above-mentioned technical scheme, this project organization makes the epoxy mortar who gets into in the mortar groove circulate each other, is favorable to epoxy mortar to get into the inside of this decking better to promote the adhesion of epoxy mortar on this decking.
Optionally, a plurality of welding steel bars are arranged between the welding nails and the epoxy mortar laying area on the steel plate, and the welding steel bars are welded with the prefabricated steel bars extending from the two bridge decks.
Through adopting above-mentioned technical scheme, with the welding reinforcing bar on the steel sheet and the prefabricated steel bar welding on the two decking, can promote the fastness of being connected between steel sheet and the two decking, and then promote this wet seam connection structure's fastness.
Optionally, the welded steel bars and the prefabricated steel bars extending from the two bridge deck plates are bound and fixed through steel wires.
Through adopting above-mentioned technical scheme, the steel wire will weld reinforcing bar and prefabricated reinforcement ligature fixed for be connected more firmly between steel sheet and the two decking.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the steel plate is prefabricated on the bottom surface of one of the bridge deck plates at one end of the welding nail, one end of the steel plate in the epoxy mortar laying area is connected to the bottom surface of the other bridge deck plate through epoxy mortar, in the construction process, the embedded steel bar is inserted into the prefabricated hole, the prefabricated hole is plugged by cast concrete, and the embedded steel bar and the bridge deck plate are connected into a whole by the concrete, so that the connection firmness of the steel plate and the bridge deck plate can be improved;
2. the arranged anti-pulling thread sleeves can increase the anti-pulling force of the embedded steel bars in the bridge deck slab, so that the firmness of the connection of the steel plates and the bridge deck slab is improved;
3. a plurality of mortar grooves for T-shaped structures can promote the adhesion of epoxy mortar on the bridge deck plate, so that the epoxy mortar is not easy to fall off from the bottom surface of the bridge deck plate, and the firmness of connection of the steel plate and the bridge deck plate can be improved.
Drawings
Fig. 1 is a schematic view of a prefabricated bridge deck wet-seam connection structure in an embodiment of the present application.
FIG. 2 is a schematic view of a steel plate in the example of the present application.
Fig. 3 is a sectional view of the connection of a steel plate and a bridge deck in the embodiment of the present application.
Reference numerals: 1. a steel plate; 2. welding nails; 3. an epoxy mortar laying area; 4. epoxy mortar; 5. embedding reinforcing steel bars in advance; 6. a bridge deck; 61. prefabricating holes; 62. a counter bore; 63. a mortar groove; 7. concrete; 8. anti-pulling thread sleeves; 9. welding reinforcing steel bars; 10. prefabricating a steel bar; 11. a steel wire.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a wet seam connection structure of prefabricated decking. Referring to fig. 1 and 2, the prefabricated bridge deck wet joint connection structure includes a steel plate 1, a plurality of welding nails 2 welded to one end of the steel plate 1, and an epoxy mortar pavement area 3 disposed at the other end of the steel plate 1, wherein the steel plate 1 is prefabricated on the bottom surface of one of the bridge deck plates 6 at one end of the welding nails 2, and the steel plate 1 is connected to the bottom surface of the other bridge deck plate 6 at one end of the epoxy mortar pavement area 3 through epoxy mortar 4.
Referring to fig. 3, specifically, a plurality of mortar grooves 63 having a T-shaped longitudinal section are densely distributed on the bottom surface of the bridge deck 6, and the adjacent mortar grooves 63 are communicated with each other, so that the epoxy mortar 4 can enter the bridge deck 6, the adhesion of the epoxy mortar 4 on the bottom surface of the bridge deck 6 is improved, and the epoxy mortar 4 is not easily detached from the bottom surface of the bridge deck 6, thereby improving the connection firmness between the steel plate 1 and the bridge deck 6.
Referring to fig. 2 and 3, a plurality of embedded steel bars 5 are welded at one end of an epoxy mortar laying area 3 of a steel plate 1, the embedded steel bars 5 are all arranged perpendicular to the steel plate 1, a plurality of prefabricated holes 61 are arranged on a corresponding bridge deck 6 in a penetrating mode, the prefabricated holes 61 are arranged in one-to-one correspondence with the embedded steel bars 5, and the diameters of the prefabricated holes 61 are larger than the diameters of the embedded steel bars 5. During the construction, insert pre-buried reinforcing bar 5 and establish to prefabricated hole 61 in, pre-buried reinforcing bar 5 has the interval in prefabricated hole 61 in pre-buried reinforcing bar 5 and prefabricated hole 61's pore wall, and pre-buried reinforcing bar 5 is for sinking completely in prefabricated hole 61 and not extending prefabricated hole 61. The top surface of the bridge deck 6 is provided with a counter bore 62 at each prefabricated hole 61, the counter bore 62 is arranged along the periphery of the prefabricated hole 61, and the counter bore 62 is communicated with the prefabricated hole 61, so that the aperture of the counter bore 62 is larger than that of the prefabricated hole 61.
Referring to fig. 2 and 3, the embedded steel bar 5 extends into the counter bore 62 but does not extend out of the counter bore 62, an anti-pulling thread insert 8 is sleeved on a position of the embedded steel bar 5 in the counter bore 62, the anti-pulling thread insert 8 is in threaded connection with the embedded steel bar 5, the anti-pulling thread insert 8 completely sinks into the counter bore 62 without extending out of the counter bore 62, and a space is formed between the anti-pulling thread insert 8 and the wall of the counter bore 62. Because the interval has between the pore wall of embedded steel bar 5 and prefabricated hole 61 to and also have the interval between the pore wall of resistance to plucking swivel nut 8 and counter bore 62, consequently, constructor can be along this interval towards pouring concrete 7 in counter bore 62 and the prefabricated hole 61, and concrete 7 solidifies the back, can be connected embedded steel bar 5, resistance to plucking swivel nut 8 and this decking 6 as an organic whole, consequently, can improve the fastness that steel sheet 1 and this decking 6 are connected. In addition, the resistance to plucking of the multiplicable embedded bar 5 of resistance to plucking swivel nut 8 that sets up in this decking 6, and then can further improve the fastness that steel sheet 1 and this decking 6 are connected.
Referring to fig. 1, the welding has a plurality of welding reinforcing bars 9 between the district 3 is laid to the welding nail 2 and epoxy mortar on steel sheet 1, and these welding reinforcing bars 9 all keep the setting of perpendicular to steel sheet 1, pass through the fixed back of 11 ligatures of steel wire with the prefabricated reinforcing bar 10 that extend on these welding reinforcing bars 9 and two decking 6, weld again, can promote the fastness of being connected between steel sheet 1 and two decking 6, and then promote this wet seam connection structure's fastness.
The implementation principle of the wet joint connection structure of prefabricated bridge deck slab of the embodiment of the application is as follows: steel sheet 1 is prefabricated in the bottom surface of one of them decking 6 in the one end of weld nail 2, steel sheet 1 passes through epoxy mortar 4 in the one end of epoxy mortar laying area 3 and connects in the bottom surface of another decking 6, in the work progress, with 5 one-to-one insertions of embedded steel bar establish to prefabricating in the hole 61, rethread cast in situ concrete 7 carries out the shutoff to prefabricating hole 61, concrete 7 solidifies the back and is connected embedded steel bar 5 and this decking 6 as an organic whole, consequently, can improve the fastness that steel sheet 1 and this decking 6 are connected.
The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a wet seam connection structure of prefabricated decking, includes steel sheet (1), locate weld nail (2) of steel sheet (1) one end and locate epoxy mortar of the steel sheet (1) other end and lay district (3), steel sheet (1) is prefabricated in the bottom surface of one of them decking (6) in the one end of weld nail (2), and steel sheet (1) is laid the one end of district (3) in epoxy mortar and is passed through epoxy mortar (4) and connect in the bottom surface of another decking (6), its characterized in that: steel sheet (1) is equipped with a plurality of embedded steel bars (5) in the one end of epoxy mortar laying area (3), with steel sheet (1) is equipped with a plurality of prefabricated holes (61) on bridge deck (6) that the one end of epoxy mortar laying area (3) is connected, embedded steel bar (5) with prefabricated hole (61) one-to-one sets up, embedded steel bar (5) are inserted and are located in prefabricated hole (61), it is right that rethread cast in situ concrete (7) prefabricated hole (61) carry out the shutoff.
2. A prefabricated bridge deck wet-seam connection according to claim 1, wherein: the embedded steel bars (5) and the hole wall of the prefabricated hole (61) are spaced, and the embedded steel bars (5) sink into the prefabricated hole (61).
3. A prefabricated decking wet-seam joint construction as claimed in claim 1, wherein: and a counter bore (62) is arranged on the top surface of the bridge deck (6) at the prefabricated hole (61), the counter bore (62) is arranged along the periphery of the prefabricated hole (61), and the counter bore (62) is communicated with the prefabricated hole (61).
4. A prefabricated bridge deck wet-seam connection according to claim 3, wherein: the embedded steel bar (5) extends into the counter bore (62), an anti-pulling thread sleeve (8) is arranged in the counter bore (62), the anti-pulling thread sleeve (8) is sleeved on the embedded steel bar (5) in a threaded mode, and an interval is formed between the anti-pulling thread sleeve (8) and the hole wall of the counter bore (62).
5. A prefabricated bridge deck wet-seam connection according to claim 1, wherein: and a plurality of mortar grooves (63) are densely distributed on the bottom surface of the bridge deck (6) connected with one end of the steel plate (1) in the epoxy mortar laying area (3), and the longitudinal sections of the mortar grooves (63) are of T-shaped structures.
6. A prefabricated bridge deck wet-seam connection according to claim 5, wherein: the adjacent mortar grooves (63) are communicated with each other.
7. A prefabricated bridge deck wet-seam connection according to claim 1, wherein: the steel plate (1) is arranged between the welding nails (2) and the epoxy mortar laying area (3) and is provided with a plurality of welding steel bars (9), and the welding steel bars (9) are welded with prefabricated steel bars (10) extending out of the two bridge decks (6).
8. A prefabricated bridge deck wet-seam connection according to claim 7, wherein: and the welding steel bars (9) are bound and fixed with the prefabricated steel bars (10) extending out of the two bridge deck plates (6) through steel wires (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123454030.4U CN216615493U (en) | 2021-12-31 | 2021-12-31 | Wet seam connection structure of prefabricated decking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123454030.4U CN216615493U (en) | 2021-12-31 | 2021-12-31 | Wet seam connection structure of prefabricated decking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216615493U true CN216615493U (en) | 2022-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123454030.4U Active CN216615493U (en) | 2021-12-31 | 2021-12-31 | Wet seam connection structure of prefabricated decking |
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| CN (1) | CN216615493U (en) |
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2021
- 2021-12-31 CN CN202123454030.4U patent/CN216615493U/en active Active
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