CN210086054U - UHPC U-shaped beam and RC bridge deck connection structure suitable for industrialized construction - Google Patents
UHPC U-shaped beam and RC bridge deck connection structure suitable for industrialized construction Download PDFInfo
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- CN210086054U CN210086054U CN201920248220.4U CN201920248220U CN210086054U CN 210086054 U CN210086054 U CN 210086054U CN 201920248220 U CN201920248220 U CN 201920248220U CN 210086054 U CN210086054 U CN 210086054U
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Abstract
The connection structure of the UHPC U-shaped beam and the RC bridge deck slab suitable for industrial construction comprises a prefabricated UHPC U-shaped beam and a prefabricated RC bridge deck slab, wherein the prefabricated RC bridge deck slab is placed on the prefabricated UHPC U-shaped beam, grouting materials are poured into a shear blind groove through a pressure grouting hole to realize the connection of the prefabricated UHPC U-shaped beam and the prefabricated RC bridge deck slab, the grouting compactness can be ensured without vibrating in the construction process, and the connection quality of the prefabricated UHPC U-shaped beam and the prefabricated RC bridge deck slab is ensured.
Description
The technical field is as follows:
the utility model relates to a bridge superstructure field, concretely relates to UHPC "U" type roof beam and RC decking joint construction suitable for industrialization is built.
Background art:
UHPC is an ultra-high performance concrete, has a series of outstanding characteristics of ultra-high strength, high strain strengthening behavior, high compactness, high crack self-repairing property, high durability, good constructability and the like, and is a brand new generation of new-generation structural material. The UHPC-RC U-shaped composite beam fully exerts the performances of the UHPC U-shaped beam and the RC bridge deck, effectively reduces the weight of an upper structure, simultaneously, the light and thin bridge member is convenient for prefabrication, transportation and field assembly, the industrialized construction technology of the bridge is exerted to the greatest extent, and the UHPC-RC U-shaped composite beam is one direction in the practical engineering application.
The connection structure of the UHPC U-shaped beam and the RC bridge deck slab is a key link for realizing the industrial construction of the UHPC-RC U-shaped combined beam, and has important influence on the construction speed, the engineering quality, the economy and the like.
The utility model has the following contents:
the utility model provides a not enough to prior art, the utility model provides a UHPC "U" type roof beam and RC decking connection structure suitable for industrialization is built for on-the-spot concatenation convenient and fast has good suitability and durability between UHPC "U" type roof beam and the RC decking.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
a UHPC U-shaped beam and RC bridge deck connection structure suitable for industrialized construction comprises a prefabricated UHPC U-shaped beam and a prefabricated RC bridge deck;
pre-embedded shear steel bars are uniformly distributed on the prefabricated UHPC U-shaped beam, and rubber sealing strips are adhered to the edges of the upper flanges; the prefabricated RC bridge deck is provided with through-long shear blind grooves, and pressure grouting holes and grout outlets are longitudinally distributed at intervals at the top; the prefabricated RC bridge deck is placed on the prefabricated UHPC U-shaped beam, grouting materials are poured into the shear blind groove through the pressure grouting holes until the grouting materials overflow from the grout outlet, and connection of the prefabricated UHPC U-shaped beam and the prefabricated RC bridge deck is achieved.
The pre-buried length of the pre-buried shear steel bar in the prefabricated UHPC U-shaped beam is more than 5 times of the diameter of the pre-buried shear steel bar.
The transverse reinforcing steel bars of the bridge deck slab in the prefabricated RC bridge deck slab are not broken in the shear hidden grooves, and the transverse reinforcing steel bars at the lower layer of the bridge deck slab are exposed outside at the shear hidden grooves.
The transverse steel bars of the bridge deck are arranged in a staggered mode with the embedded shear steel bars, and collision is avoided.
A UHPC U-shaped beam and RC bridge deck connection structure suitable for industrialized construction has the advantages that:
1. the prefabricated RC bridge deck is provided with the through-long shear blind groove, grouting materials are poured into the shear blind groove through the pressure grouting holes, connection of the prefabricated UHPC U-shaped beam and the prefabricated RC bridge deck is achieved, grouting compactness can be guaranteed without vibration in the construction process, and connection quality of the prefabricated UHPC U-shaped beam and the prefabricated RC bridge deck is guaranteed.
2. The pre-buried shear steel bars on the prefabricated UHPC U-shaped beam are uniformly distributed, the stress is definite, the connection reliability between the prefabricated UHPC U-shaped beam and the prefabricated RC bridge deck is ensured, and the prefabricated UHPC U-shaped beam and the prefabricated RC bridge deck are used as a combined beam to bear the force together.
Description of the drawings:
in order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts;
FIG. 1 is a schematic view of the overall structure;
FIG. 2 is a schematic view of a prefabricated UHPC U-shaped beam construction;
FIG. 3 is a schematic diagram of a prefabricated RC bridge deck construction;
in the figure, 1-prefabricating a UHPC U-shaped beam, 2-prefabricating an RC bridge deck, 3-pressure grouting holes, 4-grout outlets, 5-pre-buried shear steel bars, 6-grouting materials, 7-rubber sealing strips, 8-lower-layer transverse steel bars of the bridge deck and 9-shear blind grooves.
The specific implementation mode is as follows:
to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1:
a UHPC U-shaped beam and RC bridge deck connection structure suitable for industrialized construction comprises a prefabricated UHPC U-shaped beam 1 and a prefabricated RC bridge deck 2;
pre-buried shear steel bars 5 are uniformly distributed on the prefabricated UHPC U-shaped beam 1, and rubber sealing strips 7 are adhered to the edge of the upper flange. The diameter and the distance of the pre-embedded shear steel bars 5 in the prefabricated UHPC U-shaped beam 1 meet the longitudinal shear requirement of the composite beam.
The prefabricated RC bridge deck 2 is provided with through-long shear blind grooves 9, and pressure grouting holes 3 and grout outlets 4 are longitudinally distributed at intervals at the top; the prefabricated RC bridge deck 2 is placed on the prefabricated UHPC U-shaped beam 1, grouting materials 6 are poured into the shear blind groove 9 through the pressure grouting holes 3 until the grouting materials 6 overflow from the grout outlet 4, and connection of the prefabricated UHPC U-shaped beam 1 and the prefabricated RC bridge deck 2 is achieved. The grouting material 6 is micro-expansive concrete or high-performance concrete.
The embedded length of the embedded shear steel bar 5 in the prefabricated UHPC U-shaped beam 1 is more than 5 times of the diameter of the embedded shear steel bar 5.
The lower-layer transverse steel bars 8 of the bridge deck in the prefabricated RC bridge deck 2 are not broken in the shear hidden grooves 9, and the lower-layer transverse steel bars 8 of the bridge deck are exposed outside at the shear hidden grooves.
The 8 positions of the transverse reinforcing steel bars of the bridge deck and the embedded shear-resistant reinforcing steel bars 5 are arranged in a staggered mode, so that collision is avoided.
Example 2:
the difference between the embodiment and the embodiment 1 is that the embedded shear steel bars 5 are embedded shear nails, and the embedded length of the embedded shear nails in the prefabricated UHPC U-shaped beam 1 is greater than 5 times the diameter of the embedded shear nails.
Example 3:
the difference between the embodiment and the embodiment 1 is that the embedded shear steel bars 5 are embedded perforated steel plates, and the embedded length of the embedded perforated steel plates in the prefabricated UHPC U-shaped beam 1 is greater than 5 times the thickness of the embedded perforated steel plates.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (4)
1. UHPC "U" type roof beam and RC decking connection structure suitable for industrialization is built, its characterized in that: the method comprises prefabricating a UHPC U-shaped beam and prefabricating an RC bridge deck;
pre-buried shear steel bars are uniformly distributed on the prefabricated UHPC U-shaped beam, and a rubber sealing strip is adhered to the edge of the upper flange; the prefabricated RC bridge deck is provided with shear blind grooves, and pressure grouting holes and grout outlets are longitudinally distributed at intervals at the top of the prefabricated RC bridge deck; the prefabricated RC bridge deck is placed on the prefabricated UHPC U-shaped beam.
2. The connection structure of UHPC "U" shaped beam and RC bridge deck suitable for industrial construction according to claim 1, wherein: the pre-buried length of the pre-buried shear steel bar in the prefabricated UHPC U-shaped beam is more than 5 times of the diameter of the pre-buried shear steel bar.
3. The connection structure of UHPC "U" shaped beam and RC bridge deck suitable for industrial construction according to claim 1, wherein: and transverse steel bars are arranged in the bridge deck slab in the prefabricated RC bridge deck slab, the transverse steel bars are not broken in the shear hidden grooves, and the transverse steel bars on the lower layer of the bridge deck slab are exposed outside at the shear hidden grooves.
4. The connection structure of UHPC "U" shaped beam and RC bridge deck suitable for industrial construction according to claim 3, wherein: the transverse steel bars of the bridge deck are arranged in a staggered mode with the embedded shear steel bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920248220.4U CN210086054U (en) | 2019-02-27 | 2019-02-27 | UHPC U-shaped beam and RC bridge deck connection structure suitable for industrialized construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920248220.4U CN210086054U (en) | 2019-02-27 | 2019-02-27 | UHPC U-shaped beam and RC bridge deck connection structure suitable for industrialized construction |
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| Publication Number | Publication Date |
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| CN210086054U true CN210086054U (en) | 2020-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920248220.4U Active CN210086054U (en) | 2019-02-27 | 2019-02-27 | UHPC U-shaped beam and RC bridge deck connection structure suitable for industrialized construction |
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| CN (1) | CN210086054U (en) |
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Effective date of registration: 20200326 Address after: 230088, 180 camphor Road, hi tech Development Zone, Anhui, Hefei Patentee after: ANHUI TRANSPORT CONSULTING & DESIGN INSTITUTE Co.,Ltd. Address before: 230088 Hefei high tech Zone, Anhui camphor Road, No. 180 Co-patentee before: ANHUI TRANSPORTATION HOLDING GROUP Co.,Ltd. Patentee before: ANHUI TRANSPORT CONSULTING & DESIGN INSTITUTE Co.,Ltd. |