CN215668991U - Bridge expansion joint connection anchoring structure - Google Patents
Bridge expansion joint connection anchoring structure Download PDFInfo
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- CN215668991U CN215668991U CN202120710091.3U CN202120710091U CN215668991U CN 215668991 U CN215668991 U CN 215668991U CN 202120710091 U CN202120710091 U CN 202120710091U CN 215668991 U CN215668991 U CN 215668991U
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Abstract
The utility model provides a bridge expansion joint connection anchoring structure, which comprises a beam body, a beam body end sealing and an expansion joint device, wherein pre-buried anchor bars are arranged in the beam body and the beam body end sealing, the expansion joint device is arranged on the beam body end sealing, the expansion joint device comprises deformed steel and an expansion joint annular bar, concrete is poured on the beam body and the beam body end sealing, the expansion joint annular bar is positioned in the concrete, and the bridge expansion joint connection anchoring structure also comprises: the embedded steel plate is arranged on the beam body and the beam body sealing end respectively, and the bottom surface of the embedded steel plate is connected with the embedded anchor bars; the connecting steel bars are arranged on the two embedded steel plates in a crossing mode, the lower portions of the connecting steel bars are connected with the two embedded steel plates respectively, the upper portions of the connecting steel bars are connected with the annular ribs of the expansion joints, the steel bar net pieces are arranged in the concrete, and the steel bar net pieces are connected with the connecting steel bars and the annular ribs of the expansion joints respectively. The utility model has the advantages of large fault tolerance rate and convenient welding and anchoring operation.
Description
Technical Field
The utility model relates to the field of bridge expansion joint devices, in particular to a bridge expansion joint connecting and anchoring structure.
Background
In highway engineering, the method for connecting and anchoring the bridge expansion joint device and the beam body generally comprises the following steps: the embedded anchor bars are embedded in the beam body and protrude out of the beam surface, when the expansion joint device is installed, the annular bars of the expansion joint device and the embedded anchor bars are welded and anchored, and after the installation is completed, concrete is poured on one side of the beam surface and the expansion joint device. In the actual construction process, the annular ribs and the embedded anchor bars are difficult to correspond one to one for the following reasons, and great influence is caused on the anchoring operation and the anchoring quality. The method comprises the following steps that (1) a beam body and an end cap need to be poured twice during production of the precast beam, and embedded anchor bars are prone to deviation due to construction errors; reason 2, the width of the wet joint changes along with the widening section of the beam surface in the intercommunicating area, and the embedded anchor bars cannot be accurately set. In addition, after the precast beam is erected, in the construction process of a pavement layer, construction vehicles need to pass frequently, embedded anchor bars protruding out of the beam surface are extremely easy to damage and bend and deform, original shapes cannot be kept, and the performance of the steel bars which are bent and straightened is reduced, so that the structural performance of a road is affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a bridge expansion joint connecting and anchoring structure which is high in fault tolerance rate and convenient to weld and anchor.
In order to achieve the above object, the bridge expansion joint connection anchoring structure provided by the present invention includes a beam body, a beam body end-sealing and an expansion joint device, wherein pre-embedded anchor bars are arranged in the beam body and the beam body end-sealing, the expansion joint device is arranged on the beam body end-sealing, the expansion joint device includes deformed steel and expansion joint annular bars, concrete is poured on the beam body and the beam body end-sealing, the expansion joint annular bars are located in the concrete, and the bridge expansion joint connection anchoring structure further includes: the embedded steel plate is arranged in the end sealing of the beam body and the beam body respectively, and the bottom surface of the embedded steel plate is connected with the embedded anchor bars; the connecting steel bars are arranged on the two embedded steel plates in a crossing mode, the lower portions of the connecting steel bars are connected with the two embedded steel plates respectively, the projections of the connecting steel bars fall on the embedded steel plates on the horizontal projection plane, the upper portions of the connecting steel bars are connected with the annular expansion joint ribs, and the steel bar net piece is connected with the connecting steel bars and the annular expansion joint ribs respectively.
According to the scheme, the embedded steel plates are respectively arranged on the beam body and the beam body end sealing end, so that the embedded steel plates are only required to be flush with the top surface of the corresponding beam body or the beam body end sealing end, and the arrangement of the embedded steel plates is not influenced by secondary pouring; the embedded anchor bars and the connecting steel bars are connected through the embedded steel plates, and the embedded steel plates have preset width and length, so that the connecting area of the embedded anchor bars and the connecting steel bars and the embedded steel plates can be enlarged, and the embedded anchor bars or the connecting steel bars can be fixedly connected with the embedded steel plates even if the embedded anchor bars or the connecting steel bars have position deviation in the transverse direction and the longitudinal direction, so that the welding and anchoring operation is facilitated, the construction error influence is avoided, the welding and anchoring quality is improved, and the structural strength of the bridge is ensured; through setting up the reinforcing bar net piece for connecting reinforcement and expansion joint annular muscle are connected more firmly, are favorable to the structural strength of bridge expansion joint annex.
The further scheme is that the top surface of the embedded steel plate is flush with the top surface of the beam body and the top surface of the beam body end sealing respectively.
By the scheme, the embedded steel plate is flush with the beam surface, so that the construction vehicle can conveniently pass, and the embedded anchor bars and the embedded steel plate can be protected from bending deformation.
The connection steel bar comprises a lower connection part, a middle connection part and an upper connection part, the lower connection part and the upper connection part are connected at two ends of the middle connection part, and the lower connection part is welded with the embedded steel plate.
Still further scheme is, expansion joint annular muscle includes ring segment, well ring segment and lower ring segment, goes up ring segment and lower ring segment and connects at the both ends of well ring segment, goes up ring segment and upper portion connecting portion and is connected, and lower ring segment is located between upper portion connecting portion and the lower part connecting portion, and lower ring segment is connected with the reinforcing bar net piece.
According to the scheme, the embedded steel plate and the expansion joint annular rib are connected through the connecting steel bars, and the height of the connecting steel bars can be customized in advance according to the actual height of the expansion joint device on site in the construction process so as to ensure that the installation position of the expansion joint device is accurate.
Still further scheme is that one side of expansion joint device is provided with at least one first longitudinal reinforcement, and first longitudinal reinforcement extends along the extending direction of expansion joint device, first longitudinal reinforcement respectively with upper portion connecting portion and last ring segment fixed connection.
Still further scheme is that the reinforcing bar net piece includes a plurality of first horizontal reinforcing bars and a plurality of second vertical reinforcing bar, and first horizontal reinforcing bar and second vertical reinforcing bar criss-cross set up, and the reinforcing bar net piece is connected with lower annular section and middle part connecting portion respectively.
The further scheme is that the number of the expansion joint annular ribs is set to be a plurality of, the plurality of expansion joint annular ribs are arranged along the extending direction of the deformed steel bars, and the embedded steel plates and the connecting steel bars are all arranged corresponding to the expansion joint annular ribs from top to bottom.
The further scheme is that the first transverse steel bars of the steel bar net piece and the annular bars of the expansion joint are arranged correspondingly, and in the extending direction of the deformed steel bars, the connecting steel bars and the first transverse steel bars are respectively arranged on two sides of the annular bars of the expansion joint.
According to a further scheme, on the horizontal projection plane, the projection of the annular rib of the expansion joint and the projection of the first transverse reinforcing steel bar fall on the embedded steel plate.
According to the scheme, the embedded steel plates are determined according to the distance between the annular ribs of the expansion joints, the width of the embedded steel plates is large, and the embedded steel plates have a large fault tolerance with deviation, namely even if the positions of the annular ribs of the expansion joints and the embedded anchor ribs are deviated, the embedded steel plates can be welded and anchored, and convenience is brought to site construction.
Drawings
FIG. 1 is a block diagram of an embodiment of the present invention.
Fig. 2 is a top view of an embodiment of the present invention.
Fig. 3 is a structural view of a connection bar in the embodiment of the present invention.
Fig. 4 is a structural view of the expansion joint device in the embodiment of the present invention.
The utility model is further explained with reference to the drawings and the embodiments.
Detailed Description
Referring to fig. 1 to 4, the bridge expansion joint connection anchoring structure provided in this embodiment is disposed on two sides of the expansion joint 1, and the bridge expansion joint connection anchoring structure includes a beam body 2, a beam body end-sealing 3, an expansion joint device 4, a connecting reinforcement 5, a reinforcement mesh 6, and at least two embedded steel plates. The beam body end sealing 3 is positioned at one side of the beam body 2, and the expansion joint 1 is formed between two adjacent beam body end sealing 3. The expansion joint device 4 is arranged on the beam body end sealing 3, and after the expansion joint device 4 is installed, concrete needs to be poured on the beam body 2 and the beam body end sealing 3, so that the connecting reinforcing steel bars 5, the reinforcing steel bar net piece 6 and the annular expansion joint reinforcing steel bars 42 of the expansion joint device 4 are all buried in the concrete.
The beam body 2 and the beam body sealing end 3 are formed by pouring concrete twice. Before concreting, be provided with first pre-buried anchor bar 21 and first pre-buried steel sheet 22 in the roof beam body 2 in advance, first pre-buried steel sheet 22 is located the top of first pre-buried anchor bar 21, and the bottom and the first pre-buried anchor bar 21 welded fastening of first pre-buried steel sheet 22, the top surface of first pre-buried anchor bar 21 and the top surface parallel and level of roof beam body 2. Before concreting, the pre-buried anchor bar of second 31 and the pre-buried steel sheet of second 32 are provided with in advance in the roof beam body end-capping 3, and the pre-buried steel sheet of second 32 is located the top of the pre-buried anchor bar of second 31, and the bottom and the pre-buried anchor bar of second 31 welded fastening of the pre-buried steel sheet of second, and the top surface of the pre-buried anchor bar of second 31 and the top surface parallel and level of roof beam body 2 both make things convenient for construction vehicle to pass on the roof beam face, can protect pre-buried anchor bar to avoid bending deformation to damage again.
This embodiment is pre-buried anchor bar and pre-buried steel sheet respectively in roof beam body 2 and roof beam body end-capping 3, when pouring, only need guarantee first pre-buried anchor bar 21 and the pre-buried steel sheet 22 fixed connection of first in the roof beam body 1, and, pre-buried anchor bar 31 of second and the pre-buried steel sheet 32 fixed connection of second in the roof beam body end-capping 3 can, need not to connect between first pre-buried steel sheet 22 and the pre-buried steel sheet 32 of second, make and can not receive the influence that the secondary was pour between first pre-buried steel sheet 22 and the pre-buried steel sheet 32 of second, be convenient for the construction operation.
The two sides of the expansion joint 5 in the width direction are respectively provided with an expansion joint device 4, and the two expansion joint devices 4 are symmetrically arranged by the central line of the expansion joint 5. The expansion joint device 4 comprises deformed steel 41 and a plurality of annular expansion joint ribs 42, the deformed steel 41 is arranged on one side of the expansion joint 5 along the extending direction of the expansion joint 1, the plurality of annular expansion joint ribs 42 are uniformly arranged on one side of the deformed steel 41 back to the expansion joint 5 along the extending direction of the deformed steel 41 at intervals, and the annular expansion joint ribs 42 and the deformed steel 41 are welded and fixed. On the horizontal projection plane, the projection of the annular expansion joint rib 42 passes through the beam body sealing end 3 and falls on the beam body 2, that is, the annular expansion joint rib 42 extends from the upper part of the beam body sealing end 3 to the upper part of the beam body 2.
The connecting steel bars 5 are arranged on the first embedded steel plates 22 and the second embedded steel plates 32 in a crossing mode, the lower portions of the connecting steel bars 5 are fixedly connected with the first embedded steel plates 22 and the second embedded steel plates 32 respectively, and the upper portions of the connecting steel bars 5 are connected with the annular expansion joint ribs 42. Specifically, the cross section of the connecting bar 5 is set to be "U" shaped, the connecting bar 5 includes a lower connecting portion 53, a middle connecting portion 52 and an upper connecting portion 51, the middle connecting portion 52 is disposed above the beam body 2 in an extending manner in the vertical direction, and the lower connecting portion 53 and the upper connecting portion 51 are connected to upper and lower ends of the middle connecting portion 52 in parallel. The bottom surface of the lower connecting portion 53 is welded and fixed to the first embedded steel plate 22 and the second embedded steel plate 32. The upper connecting portion 51 is used for being fixedly connected with the expansion joint annular rib 42.
The cross section of the annular rib 42 of the expansion joint is U-shaped, the annular rib 42 of the expansion joint comprises an upper annular section 421, a middle annular section 422 and a lower annular section 423, and the upper annular section 421 and the lower annular section 423 are connected to the upper end and the lower end of the middle annular section 422 in parallel. In the vertical direction, the upper ring section 421 and the upper connecting portion 51 have equal heights, and the upper ring section 421 and the upper connecting portion 51 are arranged in a staggered manner along the extending direction of the expansion joint 1. In the vertical direction, the distance between the upper ring segment 421 and the lower ring segment 423 is smaller than the distance between the lower connecting portion 53 and the upper connecting portion 51, i.e., the lower ring segment 423 is located between the upper connecting portion 51 and the lower connecting portion 53, and the middle ring segment 422 is located on the side of the middle connecting portion 52 facing the expansion joint 1.
One side of the expansion joint device 4 is provided with two first longitudinal steel bars 7, the first longitudinal steel bars 7 extend along the extending direction of the expansion joint 1, and the first longitudinal steel bars 7 are respectively fixedly connected with the upper annular section 421 and the upper connecting part 51. The first longitudinal reinforcing bar 7 may be simultaneously positioned below the upper ring section 421 and the upper connecting portion 51, and the first longitudinal reinforcing bar 7 may also be simultaneously positioned above the upper ring section 421 and the upper connecting portion 51. The first longitudinal steel bar 7 is welded and fixed with the upper ring section 421 and the upper connecting part 51 respectively.
Reinforcing bar net piece 6 sets up in the middle part of connecting reinforcement 5, and reinforcing bar net piece 6 is connected with lower annular segment 423, middle part connecting portion 52 respectively. Specifically, the mesh sheet 6 includes a plurality of first transverse reinforcements 61 and a plurality of second longitudinal reinforcements 62, the first transverse reinforcements 61 extend in the width direction of the expansion joint 1, the second longitudinal reinforcements 62 extend in the extension direction of the expansion joint 1, and the first transverse reinforcements 61 and the second longitudinal reinforcements 62 are arranged in a criss-cross manner.
In fig. 2, the first pre-buried steel plate 22 and the second pre-buried steel plate 32 are respectively disposed corresponding to the annular expansion joint rib 42 up and down, and the first transverse steel bar 61 of the steel mesh sheet 6 is disposed corresponding to the annular expansion joint rib 42. In the extending direction of the expansion joint 1, the connecting reinforcing steel bars 5 and the first transverse reinforcing steel bars 61 are respectively arranged at two sides of the annular expansion joint reinforcing steel bar 42. In this embodiment, the length and the width of two pre-buried steel sheets are 100cm for pre-buried steel sheet has great fault-tolerant rate to the off normal, namely, on the horizontal projection face, the projection of expansion joint annular muscle 42 and the projection of connecting reinforcement 5 and the projection of first transverse reinforcement 61 all fall on two pre-buried steel sheets simultaneously. In the extending direction and the width direction of the expansion joint 1, even if the position of the annular rib 42 of the expansion joint is deviated, the annular rib 42 of the expansion joint can still be accurately and fixedly connected with the two embedded steel plates through the connecting steel bars 5. The anchoring structure of this embodiment has great fault-tolerant rate, both makes things convenient for the operation construction, can reduce the harmful effects that position error brought in the operation work progress again, improves anchor efficiency and quality.
In conclusion, the embedded steel plates are respectively arranged on the beam body and the beam body end sealing end, so that the embedded steel plates are only required to be flush with the top surface of the corresponding beam body or the beam body end sealing end, and the arrangement of the embedded steel plates is not influenced by secondary pouring; the embedded anchor bars and the connecting steel bars are connected through the embedded steel plates, and the embedded steel plates have preset width and length, so that the connecting area of the embedded anchor bars and the connecting steel bars and the embedded steel plates can be enlarged, and the embedded anchor bars or the connecting steel bars can be fixedly connected with the embedded steel plates even if the embedded anchor bars or the connecting steel bars have position deviation in the transverse direction and the longitudinal direction, so that the welding and anchoring operation is facilitated, the construction error influence is avoided, the welding and anchoring quality is improved, and the structural strength of the bridge is ensured; through setting up the reinforcing bar net piece for connecting reinforcement and expansion joint annular muscle are connected more firmly, are favorable to the structural strength of bridge expansion joint annex.
Finally, it should be emphasized that the above-described preferred embodiments of the present invention are merely examples of implementations, not limitations, and various changes and modifications may be made by those skilled in the art, without departing from the spirit and scope of the utility model, and any changes, equivalents, improvements, etc. made within the spirit and scope of the present invention are intended to be embraced therein.
Claims (9)
1. Bridge expansion joint connection anchor structure, including the roof beam body, roof beam body block and expansion joint device, the roof beam body with all be provided with pre-buried anchor bar in the roof beam body block, the expansion joint device sets up on the roof beam body block, the expansion joint device includes deformed steel and expansion joint annular muscle, the roof beam body with pour the concrete on the roof beam body block, expansion joint annular muscle is located within the concrete, its characterized in that:
bridge expansion joint connects anchor structure still includes: the embedded steel plates are respectively arranged in the beam body and the beam body end seal, and the bottom surfaces of the embedded steel plates are connected with the embedded anchor bars;
the connecting steel bars are arranged on the two embedded steel plates in a crossing mode, the lower portions of the connecting steel bars are connected with the two embedded steel plates respectively, the projections of the connecting steel bars fall on the embedded steel plates on the horizontal projection plane, the upper portions of the connecting steel bars are connected with the annular expansion joint ribs, and the steel bar net piece is connected with the connecting steel bars and the annular expansion joint ribs respectively.
2. The bridge expansion joint connection anchoring structure of claim 1, wherein:
the top surface of the embedded steel plate is flush with the top surface of the beam body and the top surface of the beam body end sealing respectively.
3. The bridge expansion joint connection anchoring structure of claim 1, wherein:
the connecting steel bar comprises a lower connecting part, a middle connecting part and an upper connecting part, the lower connecting part and the upper connecting part are connected at two ends of the middle connecting part, and the lower connecting part is welded with the embedded steel plate.
4. The bridge expansion joint connection anchoring structure of claim 3, wherein:
the annular rib of the expansion joint comprises an upper annular section, a middle annular section and a lower annular section, the upper annular section and the lower annular section are connected to two ends of the middle annular section, the upper annular section is connected with the upper connecting portion, the lower annular section is located between the upper connecting portion and the lower connecting portion, and the lower annular section is connected with the reinforcing mesh.
5. The bridge expansion joint connection anchoring structure of claim 4, wherein:
at least one first longitudinal steel bar is arranged on one side of the expansion joint device, the first longitudinal steel bar extends along the extending direction of the expansion joint device, and the first longitudinal steel bar is fixedly connected with the upper connecting part and the upper annular section respectively.
6. The bridge expansion joint connection anchoring structure of claim 4, wherein:
the reinforcing bar net piece comprises a plurality of first transverse reinforcing bars and a plurality of second longitudinal reinforcing bars, the first transverse reinforcing bars and the second longitudinal reinforcing bars are arranged in a criss-cross mode, and the reinforcing bar net piece is connected with the lower annular section and the middle connecting portion respectively.
7. The bridge expansion joint connection anchoring structure according to any one of claims 1 to 6, wherein:
the number of the annular ribs of the expansion joint is set to be a plurality of, the annular ribs of the expansion joint are arranged along the extending direction of the deformed steel bars, and the embedded steel plates and the connecting steel bars are all arranged corresponding to the annular ribs of the expansion joint from top to bottom.
8. The bridge expansion joint connection anchoring structure of claim 7, wherein:
the first transverse steel bars of the steel bar net piece and the annular expansion joint bars are correspondingly arranged, in addition, the extending direction of the deformed steel bars is in the state that the connecting steel bars and the first transverse steel bars are respectively arranged on two sides of the annular expansion joint bars.
9. The bridge expansion joint connection anchoring structure of claim 8, wherein:
on the horizontal projection plane, the projection of the expansion joint annular rib and the projection of the first transverse reinforcing steel bar are both located on the embedded steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120710091.3U CN215668991U (en) | 2021-04-08 | 2021-04-08 | Bridge expansion joint connection anchoring structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120710091.3U CN215668991U (en) | 2021-04-08 | 2021-04-08 | Bridge expansion joint connection anchoring structure |
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| Publication Number | Publication Date |
|---|---|
| CN215668991U true CN215668991U (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120710091.3U Active CN215668991U (en) | 2021-04-08 | 2021-04-08 | Bridge expansion joint connection anchoring structure |
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| CN (1) | CN215668991U (en) |
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2021
- 2021-04-08 CN CN202120710091.3U patent/CN215668991U/en active Active
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