CN210117650U - Prefabricated reinforced concrete bridge deck of non-modular post-cast strip - Google Patents
Prefabricated reinforced concrete bridge deck of non-modular post-cast strip Download PDFInfo
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- CN210117650U CN210117650U CN201822035450.0U CN201822035450U CN210117650U CN 210117650 U CN210117650 U CN 210117650U CN 201822035450 U CN201822035450 U CN 201822035450U CN 210117650 U CN210117650 U CN 210117650U
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Abstract
The present disclosure provides an unmolded post-cast strip precast reinforced concrete deck slab, comprising a first end portion and a second end portion, the first end portion and the second end portion being disposed along a bridge direction of the deck slab; the first end part comprises a first rabbet end which is concave inwards; the second end comprises a second rabbet end and an extension end; the second rabbet end is positioned above the extension end, and the second rabbet end and the extension end are arranged along the thickness direction of the bridge deck plate; the extension end has an extension length along the bridge direction; the extension end is connectable with the first rabbet end of an adjacent decking. The deck slab of this disclosure enables the component itself to play the effect of template to realize the non-moulding. The mode of increasing U-shaped connecting reinforcing steel bars is adopted, so that the connecting reinforcing steel bars of two adjacent prefabricated reinforced concrete bridge decks can be naturally staggered.
Description
Technical Field
The utility model relates to a decking in building field especially relates to prefabricated reinforced concrete decking in no modularization post-cast strip.
Background
At present, a steel-concrete combined structure is a structural form which is formed by connecting a steel member and a concrete member through a shear connector to generate combined action and joint stress. When the prefabricated bridge is applied to a prefabricated bridge, construction is generally carried out in a segmental assembling mode, steel beams are divided into segments and prefabricated concrete bridge deck boards are segmented according to the stress performance and the construction capacity, wet joints are reserved at the connecting parts of the steel beams and the concrete bridge deck boards and the connecting parts between the steel beams and the prefabricated concrete bridge deck boards, and construction connection measures are preset; after the steel beam segments and the concrete bridge decks are prefabricated in a factory, the prefabricated reinforced concrete bridge decks are installed after the steel beams are erected and spliced on site, and finally, wet joint concrete is poured on site to form an integral structure.
Generally, the concrete form of the longitudinal wet joint can be served by the upper flange of the girder or the stringer, while the form of the transverse wet joint must be separately provided, and it is common practice to reserve holes on the bridge deck and hang the form on the bottom of the bridge deck by using screws.
The traditional method is adopted to hang the mould and pour the transverse wet joint, and the installation and the removal are all completed on site. In addition, if the staggered position is not considered during prefabrication, the connecting steel bars of two adjacent bridge deck plates along the bridge direction need to be bent by a certain angle during on-site overlapping and binding, so that the on-site operation amount of the assembly type structure is increased, and the construction difficulty is high when the pier height is high.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, according to the present disclosure, a prefabricated reinforced concrete bridge deck without a mold post-cast strip is provided, which is implemented by the following technical scheme.
The bridge deck comprises a first end and a second end, and the first end and the second end are arranged along the bridge direction of the bridge deck; the first end part comprises a first rabbet end which is concave inwards; the second end comprises a second rabbet end and an extension end; the second rabbet end is positioned above the extension end, and the second rabbet end and the extension end are arranged along the thickness direction of the bridge deck plate; the extending end has an extending length along the bridge direction; the extension end is capable of being coupled to the first rabbet end of an adjacent decking.
Furthermore, annular stressed steel bars are arranged inside the bridge deck, and the stressed annular steel bars are arranged along the bridge direction; the part of the annular stressed steel bar extending out of the second end part is flush with the extending end; the annular stressed steel bar does not extend out of the first end part; the first rabbet end is provided with a U-shaped steel bar for connecting and transmitting force; the size of the U-shaped steel bar along the thickness direction of the bridge deck is smaller than that of the stressed steel bar along the thickness direction of the bridge deck; the U-shaped reinforcing steel bar extends out from the first rabbet end and has an extending length along the bridge direction.
Further, the part of the U-shaped steel bar extending out of the first rabbet end is staggered with the extending end of the second end part of the adjacent bridge deck.
Furthermore, the part of the U-shaped steel bar extending out of the first rabbet end is tightly attached to the annular stressed steel bar of the extending end of the second end part of the adjacent bridge deck and is in lap joint with the annular stressed steel bar.
Further, a gap portion is arranged between the extending end and the first rabbet end of the adjacent bridge deck.
Further, the thickness ratio of the second rabbet end to the extension end is 3:1-2: 1.
Furthermore, the annular stressed steel bars are fixed inside the bridge deck by a plurality of erection bars.
Further, the width of the gap portion is 10mm, and the gap portion is sealed with a seal tape.
Further, a transverse wet joint is provided between the second rabbet end and the first rabbet end of an adjacent bridge deck.
Furthermore, transverse connecting steel bars are arranged in the transverse wet joint part. The transverse wet joints are cast of concrete.
The terms "first" and "second" in the above technical solutions are merely used for identification, and do not limit the structures of the related components.
The beneficial effect of this disclosure:
the general structure of the prefabricated reinforced concrete bridge deck is improved, so that the member can play the role of a template, and the model-free effect is realized.
The mode of increasing U-shaped connecting reinforcing steel bars is adopted, so that the connecting reinforcing steel bars of two adjacent prefabricated reinforced concrete bridge decks can be naturally staggered.
The transverse wet joint of the bridge deck does not need to be installed or removed, so that the template is saved, and the workload on site is reduced; the connecting reinforcing steel bars of the adjacent bridge decks in the bridge direction do not need to be staggered, so that the process of binding the reinforcing steel bars on site is simplified, and the standardization of the prefabricated reinforced concrete bridge decks is guaranteed.
During site operation, install on the girder steel with prefabricated reinforced concrete decking, stretch out reinforcing bar and wet seam transverse connection reinforcing bar and tie up, adjacent decking pushes up each other tightly, can pour horizontal wet seam, by the extension end bottom of every prefabricated reinforced concrete decking act as the template of horizontal wet seam, need not to install the template in addition.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.
Fig. 1(1a, 1b, 1c) is a schematic structural diagram of two ends of a bridge deck according to an embodiment of the present disclosure, where 1a is a structural diagram of two end extending ends and rabbet ends of the bridge deck, 1b is a partial enlargement of the extending ends, and 1c is a partial enlargement of the rabbet ends.
Fig. 2 is a schematic view of the overall structure of a bridge deck according to an embodiment of the present disclosure.
Fig. 3 is a schematic structural view of two adjacent bridge decks connected by transverse wet joint connecting rebar according to an embodiment of the disclosure.
The prefabricated reinforced concrete bridge deck comprises an extension end 1, a rabbet end 2, a vertical bar 3, a U-shaped steel bar 4, an annular stressed steel bar 5, a transverse stressed steel bar 6, a prefabricated reinforced concrete bridge deck 7, a transverse connecting steel bar 8 and a sealing strip 9.
Detailed Description
The present disclosure is described in further detail below with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant disclosure and not restrictive of the disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.
It should be noted that, in the present disclosure, the embodiments and features of the embodiments may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 (including 1a, 1b, 1c) and fig. 2-3, the prefabricated reinforced concrete bridge deck 7 without the post-cast strip is composed of a first end part and a second end part, and the first end part and the second end part are arranged along the bridge direction of the bridge deck;
the first end part comprises a first rabbet end 2 which is concave inwards;
the second end part comprises a second rabbet end and an extension end 1;
the second rabbet end is positioned above the extension end, and the second rabbet end and the extension end are arranged along the thickness direction of the bridge deck plate;
the extending end has an extending length along the bridge direction;
the extension end is capable of being coupled to the first rabbet end of an adjacent decking.
The bridge deck is internally provided with annular stressed steel bars which are arranged along the bridge direction; the part of the annular stressed steel bar extending out of the second end part is flush with the extending end;
the annular stressed steel bar does not extend out of the first end part;
the first rabbet end is provided with a U-shaped steel bar 4 for connecting and transmitting force;
the dimension of the U-shaped steel bar 4 along the thickness direction of the bridge deck is smaller than that of the stressed steel bar along the thickness direction of the bridge deck;
the U-shaped steel bar 4 extends out of the first rabbet end and has an extension length along the bridge direction.
The part of the U-shaped steel bar 4 extending out of the first rabbet end is staggered with the extending end of the second end part of the adjacent bridge deck.
The part of the U-shaped steel bar 4 extending out of the first rabbet end is tightly attached to the annular stressed steel bar of the extending end of the second end part of the adjacent bridge deck and is in lap joint with the annular stressed steel bar.
A gap part is arranged between the extending end and the first rabbet end of the adjacent bridge deck.
The width of the gap is 10mm, and the gap is sealed with a seal tape 9.
The thickness ratio of the second rabbet end to the extension end is 3:1-2: 1.
The annular stressed steel bars are fixed inside the bridge deck by the erection bars, and the erection bars 3 are multiple.
A transverse wet joint portion is arranged between the second rabbet end and the first rabbet end of the adjacent bridge deck.
The transverse wet joint portion is provided with transverse connecting reinforcing bars 8.
The transverse wet joints are cast of concrete.
In more detail, as shown in fig. 1, the prefabricated reinforced concrete bridge deck 7 with the non-molding post-cast strip comprises a first end part and a second end part, wherein the first end part and the second end part are arranged along the bridge direction of the bridge deck;
the first end part comprises a first rabbet end 2 which is concave inwards;
the second end part comprises a second rabbet end and an extension end 1;
the second rabbet end is positioned above the extension end, and the second rabbet end and the extension end are arranged along the thickness direction of the bridge deck plate;
the extending end has an extending length along the bridge direction;
the extension end is capable of being coupled to the first rabbet end of an adjacent decking.
The second rabbet end is also provided with an inward concave rabbet.
The depth of the first rabbet end inwards concave is smaller than the longitudinal thickness of the first rabbet end (namely, smaller than the thickness of the bridge deck).
The depth of the second rabbet end inwards concave is smaller than the longitudinal thickness of the second rabbet end.
As shown in fig. 2, the bridge deck has annular stressed steel bars 5 inside, and the stressed annular steel bars are arranged along the bridge direction;
the part of the annular stress steel bar 5 extending from the second end part is flush with the extending end;
the annular stressed steel bar 5 does not extend out of the first end part;
the first rabbet end is provided with a U-shaped steel bar 4 for connecting and transmitting force;
the dimension of the U-shaped steel bar 4 along the thickness direction of the bridge deck is smaller than that of the stressed steel bar along the thickness direction of the bridge deck;
the U-shaped steel bar 4 extends out of the first rabbet end and has an extension length along the bridge direction.
When the ratio of the thickness of the second rabbet end to the thickness of the extension end is 2:1, the strength is met, and the number of cast-in-place concrete can be reduced.
The annular stress steel bars 5 are fixed inside the bridge deck by the vertical bars 3, and are arranged at equal intervals as the vertical bars 3 are arranged in fig. 2.
The bridge deck is internally provided with transverse stressed steel bars 6, and the transverse stressed steel bars 6 are arranged along the transverse bridge direction;
the transverse stressed reinforcing steel bars 6 are tightly attached to the outer sides of the annular stressed reinforcing steel bars, each transverse stressed reinforcing steel bar 6 comprises an upper group and a lower group, and the upper group and the lower group of transverse stressed reinforcing steel bars 6 are symmetrically arranged.
The arc-shaped high points and low points of the vertical bars 3 are respectively clamped on the upper edge and the lower edge of the upper and lower groups of symmetrical transverse stress steel bars 6.
The extension end is internally provided with a group of transverse stressed steel bars, and the extension end is not provided with a frame vertical bar 3.
As shown in fig. 3, the portion of the U-shaped reinforcement 4 protruding out of the first rabbet end is offset from the extension of the second end of the adjacent decking.
The part of the U-shaped steel bar 4 extending out of the first rabbet end is clung to the annular stressed steel bar 5 at the extending end of the second end of the adjacent bridge deck and is in lap joint with the annular stressed steel bar.
A gap part is arranged between the extending end and the first rabbet end of the adjacent bridge deck.
The width of the gap is 10mm, and the gap is sealed with a seal tape 9.
A transverse wet joint portion is arranged between the second rabbet end and the first rabbet end of the adjacent bridge deck.
The transverse wet joint portion is provided with transverse connecting reinforcing bars 8.
The transverse wet joints are cast of concrete.
It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.
Claims (8)
1. The prefabricated reinforced concrete bridge deck without the modular post-cast strip is characterized by comprising a first end part and a second end part, wherein the first end part and the second end part are arranged along the bridge direction of the bridge deck;
the first end part comprises a first rabbet end which is concave inwards;
the second end comprises a second rabbet end and an extension end;
the second rabbet end is positioned above the extension end, and the second rabbet end and the extension end are arranged along the thickness direction of the bridge deck plate;
the extension end has an extension length along the bridge direction;
the extension end is connectable with the first rabbet end of an adjacent decking.
2. The bridge deck according to claim 1, wherein the bridge deck has an annular force-receiving reinforcing bar therein, the annular force-receiving reinforcing bar being disposed along the bridge direction; the part of the annular stress steel bar, which extends out of the second end part, is flush with the extension end;
the annular stressed steel bar does not extend out of the first end part;
the first rabbet end is provided with a U-shaped steel bar for connecting and transmitting force;
the size of the U-shaped reinforcing steel bar along the thickness direction of the bridge deck is smaller than that of the annular stressed reinforcing steel bar along the thickness direction of the bridge deck;
the U-shaped steel bar extends out of the first rabbet end and has an extension length along the bridge direction.
3. The bridge deck of claim 2, wherein the portion of the U-shaped reinforcement extending beyond the first rabbet end is offset from the extending end of the second end of an adjacent bridge deck.
4. The bridge deck of claim 3, wherein the portion of the U-shaped reinforcement extending beyond the first rabbet end abuts and overlaps the annular load bearing reinforcement of the extension of the second end of the adjacent bridge deck.
5. The bridge deck of claim 4, wherein the extended end has a void portion between the extended end and the first rabbet end of an adjacent bridge deck.
6. The bridge deck of claim 1, wherein the second rabbet end to extension end thickness ratio is from 3:1 to 2: 1.
7. The bridge deck of claim 2, wherein the annular load-bearing rebar is secured to the interior of the bridge deck by a set bar.
8. The bridge deck of claim 7, wherein the plurality of the erection tendons are plural.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822035450.0U CN210117650U (en) | 2018-12-05 | 2018-12-05 | Prefabricated reinforced concrete bridge deck of non-modular post-cast strip |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822035450.0U CN210117650U (en) | 2018-12-05 | 2018-12-05 | Prefabricated reinforced concrete bridge deck of non-modular post-cast strip |
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| CN210117650U true CN210117650U (en) | 2020-02-28 |
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| CN201822035450.0U Active CN210117650U (en) | 2018-12-05 | 2018-12-05 | Prefabricated reinforced concrete bridge deck of non-modular post-cast strip |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109518602A (en) * | 2018-12-05 | 2019-03-26 | 中交公路规划设计院有限公司 | Without modelling post-cast strip prefabricated reinforced concrete floorings |
| CN114718017A (en) * | 2022-05-16 | 2022-07-08 | 江西省水利科学院 | Assembly type aqueduct wet joint reinforcing steel bar anchoring structure |
| CN114775425A (en) * | 2022-04-21 | 2022-07-22 | 清华大学 | Bridge deck plate assembly, fabricated composite bridge and construction method thereof |
-
2018
- 2018-12-05 CN CN201822035450.0U patent/CN210117650U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109518602A (en) * | 2018-12-05 | 2019-03-26 | 中交公路规划设计院有限公司 | Without modelling post-cast strip prefabricated reinforced concrete floorings |
| CN114775425A (en) * | 2022-04-21 | 2022-07-22 | 清华大学 | Bridge deck plate assembly, fabricated composite bridge and construction method thereof |
| CN114718017A (en) * | 2022-05-16 | 2022-07-08 | 江西省水利科学院 | Assembly type aqueduct wet joint reinforcing steel bar anchoring structure |
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