CN214573334U - Ultra-high performance concrete combined bridge deck structure - Google Patents
Ultra-high performance concrete combined bridge deck structure Download PDFInfo
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- CN214573334U CN214573334U CN202120414708.7U CN202120414708U CN214573334U CN 214573334 U CN214573334 U CN 214573334U CN 202120414708 U CN202120414708 U CN 202120414708U CN 214573334 U CN214573334 U CN 214573334U
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Abstract
The ultra-high performance concrete combined bridge deck structure comprises a bridge deck top plate, an ultra-high performance concrete layer I and a combined layer, wherein the combined layer comprises a bridge deck middle plate, a connecting piece, a bridge deck bottom plate and an ultra-high performance concrete layer II filled in the combined layer, and the connecting piece consists of an upper fixing piece, a connecting column and a lower fixing piece; the utility model uses the ultra-high performance concrete, effectively improves the crack resistance of the concrete slab, and obviously improves the durability, fatigue strength and rigidity of the bridge deck; the connecting piece is arranged and is actively connected with the cross-shaped placing groove through the grooves, the anti-seismic performance of the concrete slab is improved, the load of a vehicle borne by the bridge deck is enhanced, and the durability and the safety of the bridge deck are prolonged.
Description
Technical Field
The utility model relates to a decking technical field especially relates to a super high performance concrete combination bridge floor structure.
Background
The bridge deck structure is the key part of bridge design, and the decking directly bears the vehicle load effect to transmit the load that bears for the girder. The ultra-high performance concrete is a dense concrete material with high strength, high durability, high toughness and high tensile strength, which is formed by using fine sand as an aggregate without using coarse aggregate and adding a large amount of mineral admixtures such as silica fume and the like, a high-efficiency water reducing agent and superfine steel fibers, and the compressive strength and the tensile strength of the ultra-high performance concrete are far higher than those of common concrete.
Under the load effect, the concrete bridge deck slab has great risk of cracking in the transverse direction and the forward direction hogging moment areas. Since the deck slab directly bears the repeated action of the vehicle load and is in a working environment which is easily corroded, the cracking of the deck slab not only directly affects the durability and the safety during operation, but also reduces the rigidity of the bridge.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a super high performance concrete combination bridge floor structure, the setting of decking roof, decking bottom plate and connecting piece can be strengthened the decking and bear the load of vehicle, prolongs the durability and the security of decking.
The utility model adopts the technical proposal that:
the combined layer comprises a bridge deck middle plate, a connecting piece, a bridge deck bottom plate and a super high performance concrete layer II filled in the combined layer, wherein the bridge deck middle plate is positioned below the super high performance concrete layer I, and the connecting piece consists of an upper fixing piece, a connecting column and a lower fixing piece.
The upper fixing piece is fixed below the middle plate of the bridge deck, the lower fixing piece is fixed above the bottom plate of the bridge deck, the upper fixing piece and the lower fixing piece are arranged correspondingly, and adjacent lower fixing pieces are connected through a connecting column.
The connecting column is also positioned between the upper fixing piece and the lower fixing piece.
The connecting column is of a quadrangular prism structure, two grooves are formed in the same side face of the connecting column, the width and the depth of the two grooves are consistent, and the depth of each groove is smaller than one half of the thickness of the connecting column.
The shape of lower mounting be the same with the shape of last mounting, all include support column and supporting disk, the support column is located the bottom intermediate position of supporting disk, the top surface of supporting disk is provided with the cross standing groove that link up, the degree of depth of this cross standing groove is less than the half of the thickness of supporting disk.
The supporting column is in a quadrangular prism shape or a cylindrical shape, the supporting column is connected with the supporting disk in a welding or bolt mode, the supporting column of the lower fixing piece is connected with the bridge deck bottom plate in a welding or bolt mode, and the supporting column of the upper fixing piece is fixedly connected with the bridge deck middle plate in a welding or bolt mode.
And reinforcing steel bars are laid in the middle of the ultra-high performance concrete layer I, and shear nails are arranged in the ultra-high performance concrete layer II.
The utility model has the advantages that: the utility model uses the ultra-high performance concrete, effectively improves the crack resistance of the concrete slab, and obviously improves the durability, fatigue strength and rigidity of the bridge deck; the connecting piece is arranged and is actively connected with the cross-shaped placing groove through the grooves, the anti-seismic performance of the concrete slab is improved, the load of a vehicle borne by the bridge deck is enhanced, and the durability and the safety of the bridge deck are prolonged.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a connection diagram of the connection column and the lower fixing member of the present invention.
Fig. 3 is a schematic structural view of the connecting column of the present invention.
Fig. 4 is a schematic structural diagram of the lower fixing member of the present invention.
Fig. 5 is a top view of the lower fixing member of the present invention.
Fig. 6 is a side view of the lower fixing member of the present invention.
In the figure, 1, a bridge deck top plate, 2, a first ultrahigh-performance concrete layer, 3, a bridge deck middle plate, 4, a second ultrahigh-performance concrete layer, 5, a bridge deck bottom plate, 6, a connecting piece, 7, a lower fixing piece, 8, a connecting column, 9, an upper fixing piece, 10, a groove, 11, a cross-shaped placing groove, 12, a supporting disc, 13 and a supporting column.
Detailed Description
As shown in fig. 1 to 6, an ultra-high performance concrete composite bridge deck structure comprises a bridge deck top plate 1, an ultra-high performance concrete layer one 2 and a composite layer, wherein the composite layer comprises a bridge deck middle plate 3 positioned below the ultra-high performance concrete layer one 2, a connecting piece 6, a bridge deck bottom plate 5 and an ultra-high performance concrete layer two 4 filled in the composite layer, and the connecting piece 6 is composed of an upper fixing piece 9, a connecting column 8 and a lower fixing piece 7.
The upper fixing piece 9 is fixed below the bridge deck middle plate 3, the lower fixing piece 7 is fixed above the bridge deck bottom plate 5, the upper fixing piece 9 and the lower fixing piece 7 are arranged correspondingly, and the adjacent lower fixing pieces 7 are connected through the connecting column 8.
The connecting column 8 is also positioned between the upper fixing piece 9 and the lower fixing piece 7.
The connecting column 8 is of a quadrangular prism structure, two grooves 10 are formed in the same side face of the connecting column 8, the width and the depth of the two grooves 10 are identical, and the depth of each groove 10 is smaller than one half of the thickness of the connecting column 8.
The shape of lower mounting 7 be the same with the shape of last mounting 9, all include support column 13 and supporting disk 12, support column 13 is located the bottom intermediate position of supporting disk 12, and the top surface of supporting disk 12 is provided with through-going cross standing groove 11, and the degree of depth of this cross standing groove 11 is less than the half of the thickness of supporting disk 12.
The supporting columns 13 are in a quadrangular prism shape or a cylindrical shape, the supporting columns 13 are connected with the supporting disc 12 in a welding or bolt mode, the supporting columns 13 of the lower fixing piece 7 are connected with the bridge deck bottom plate 5 in a welding or bolt mode, and the supporting columns 13 of the upper fixing piece 9 are fixedly connected with the bridge deck middle plate 3 in a welding or bolt mode.
And reinforcing steel bars are laid in the middle of the first ultra-high-performance concrete layer 2, and shear nails are arranged in the second ultra-high-performance concrete layer 4.
The width of the groove of the connecting column 8 is slightly larger than the width of a cross-shaped placing groove 11 on the supporting disc 12 of the lower fixing piece 7 and the upper fixing piece 9.
The bridge deck top 1, the bridge deck middle plate 3 and the bridge deck bottom plate 5 are all steel plates. The connecting column 8, the upper fixing piece 9 and the lower fixing piece 7 are made of steel plates, steel bars or/and wood plates.
The direction of the connecting column 8 is perpendicular to the direction of the steel bars in the ultra-high performance concrete layer one 2, and the steel bars in the ultra-high performance concrete layer one 2 can be set into a steel bar mesh.
The utility model discloses during the use, make mounting 9 earlier respectively, mounting 7 and spliced pole 8 down, then will be mounting 7 and 5 fixed connection of decking bottom plate down, place spliced pole 8 on mounting 7 down, make recess 10 of spliced pole 8 cooperate with the cross standing groove 11 of mounting 7 down, will go up mounting 9 again and place in the top of spliced pole 8, the cross standing groove 11 that makes mounting 9 cooperatees with spliced pole 8, decking intermediate lamella 3 and the support column 13 fixed connection of last mounting 9 again, then fill ultra high performance concrete layer two 4, set up ultra high performance concrete layer one 2 and decking roof 1 in decking intermediate lamella 3's top at last.
Claims (7)
1. The utility model provides an ultra high performance concrete combination bridge deck structure which characterized in that: the combined layer comprises a bridge deck top plate (1), a first ultrahigh-performance concrete layer (2) and a combined layer, wherein the combined layer comprises a bridge deck middle plate (3) positioned below the first ultrahigh-performance concrete layer (2), a connecting piece (6), a bridge deck bottom plate (5) and a second ultrahigh-performance concrete layer (4) filled in the combined layer, and the connecting piece (6) consists of an upper fixing piece (9), a connecting column (8) and a lower fixing piece (7).
2. The ultra-high performance concrete composite deck structure of claim 1, wherein: go up mounting (9) be fixed in the below of decking intermediate lamella (3), lower mounting (7) are fixed in the top of decking bottom plate (5), and go up mounting (9) and lower mounting (7) and set up correspondingly, be connected through spliced pole (8) between the adjacent lower mounting (7).
3. The ultra-high performance concrete composite deck structure of claim 2, wherein: the connecting column (8) is also positioned between the upper fixing piece (9) and the lower fixing piece (7).
4. The ultra-high performance concrete composite deck structure of claim 2, wherein: the connecting column (8) is of a quadrangular prism structure, two grooves (10) are formed in the same side face of the connecting column (8), the width and the depth of the two grooves (10) are consistent, and the depth of each groove (10) is smaller than one half of the thickness of the connecting column (8).
5. The ultra-high performance concrete composite deck structure of claim 2, wherein: the shape of lower mounting (7) be the same with the shape of last mounting (9), all include support column (13) and supporting disk (12), support column (13) are located the bottom intermediate position of supporting disk (12), the top surface of supporting disk (12) is provided with through-going cross standing groove (11), the degree of depth of this cross standing groove (11) is less than the half of the thickness of supporting disk (12).
6. The ultra-high performance concrete composite deck structure of claim 5, wherein: the supporting columns (13) are in a quadrangular prism shape or a cylindrical shape, the supporting columns (13) are connected with the supporting disc (12) in a welding or bolt mode, the supporting columns (13) of the lower fixing piece (7) are connected with the bridge deck bottom plate (5) in a welding or bolt mode, and the supporting columns (13) of the upper fixing piece (9) are fixedly connected with the bridge deck middle plate (3) in a welding or bolt mode.
7. The ultra-high performance concrete composite deck structure of claim 1, wherein: and reinforcing steel bars are laid in the middle of the ultra-high performance concrete layer I (2), and shear nails are arranged in the ultra-high performance concrete layer II (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120414708.7U CN214573334U (en) | 2021-02-25 | 2021-02-25 | Ultra-high performance concrete combined bridge deck structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120414708.7U CN214573334U (en) | 2021-02-25 | 2021-02-25 | Ultra-high performance concrete combined bridge deck structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214573334U true CN214573334U (en) | 2021-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120414708.7U Active CN214573334U (en) | 2021-02-25 | 2021-02-25 | Ultra-high performance concrete combined bridge deck structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214573334U (en) |
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2021
- 2021-02-25 CN CN202120414708.7U patent/CN214573334U/en active Active
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