CN214401900U - Underground continuous wall and subway station structural slab node connection structure - Google Patents
Underground continuous wall and subway station structural slab node connection structure Download PDFInfo
- Publication number
- CN214401900U CN214401900U CN202120102927.1U CN202120102927U CN214401900U CN 214401900 U CN214401900 U CN 214401900U CN 202120102927 U CN202120102927 U CN 202120102927U CN 214401900 U CN214401900 U CN 214401900U
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- steel
- subway station
- bar
- structural slab
- station structural
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Links
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 109
- 239000010959 steel Substances 0.000 claims description 109
- 238000004873 anchoring Methods 0.000 claims description 39
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 21
- 230000002787 reinforcement Effects 0.000 claims description 18
- 238000005452 bending Methods 0.000 claims description 13
- 238000010276 construction Methods 0.000 claims description 9
- 239000004033 plastic Substances 0.000 claims description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 210000003205 muscle Anatomy 0.000 abstract description 9
- 238000007667 floating Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 2
- 239000002984 plastic foam Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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Abstract
The utility model discloses a joint connection structure of an underground diaphragm wall and a subway station structural slab, which comprises the underground diaphragm wall, the subway station structural slab and connecting plates, wherein the connecting plates are arranged discontinuously along the subway station structural slab; the subway station structural slab includes that subway station structural slab indulges the muscle, the connecting plate includes that the connecting plate indulges the muscle, the connecting plate indulges the muscle including the first U type reinforcing bar of buckling to the foundation ditch outside and the second U type reinforcing bar of buckling to the foundation ditch inside, first U type reinforcing bar and second U type reinforcing bar quantity equal and corresponding, the kink of each first U type reinforcing bar and the kink of corresponding second U type reinforcing bar alternately form reinforcing bar encryption district, the connection end of second U type reinforcing bar is indulged the muscle quantity with the subway station structural slab that corresponds the connection position and is equal and corresponding. The utility model discloses be connected underground continuous wall and subway station as an organic whole, bear the water buoyancy of subway station bottom plate jointly, be favorable to improving the anti effect of floating of structure, reduce engineering cost, easily promote.
Description
Technical Field
The utility model relates to an underground space structure construction technical field especially relates to an underground continuous wall and subway station structural slab nodal connection structure.
Background
At present, the development and utilization of underground space in China are continuously improved, particularly the construction of subway engineering, and deep foundation pits are often required to be excavated in the engineering. The underground diaphragm wall has the characteristics of high rigidity, good integrity and the like, is often used as a temporary maintenance structure for foundation pit excavation, and has low later-stage utilization rate. The underground depth of the subway station is generally deep, and in areas with high underground water level, underground water can generate great buoyancy to the subway station. At present, 3 types of anti-floating measures mainly adopted by domestic subway stations include the arrangement of a capping beam and an additional structure and the arrangement of uplift piles. And the structure of utilizing the structure dead weight of underground continuous wall and the side friction resistance of wall both sides and the whole anti structure of floating of subway station still is less.
Disclosure of Invention
The utility model aims at providing an underground continuous wall and subway station structural slab nodal connection structure.
In order to achieve the above purpose, the technical scheme of the utility model is that: a joint connection structure of an underground continuous wall and a subway station structural slab comprises the underground continuous wall, the subway station structural slab and a plurality of connecting plates for connecting the underground continuous wall and the subway station structural slab, wherein the connecting plates are discontinuously arranged along the subway station structural slab; the subway station structural slab comprises a subway station structural slab longitudinal rib, the connecting plate comprises a connecting plate longitudinal rib, the connecting plate longitudinal rib comprises a first U-shaped reinforcing steel bar bending towards the outside of the foundation pit and a second U-shaped reinforcing steel bar bending towards the inside of the foundation pit, the first U-shaped reinforcing steel bar and the second U-shaped reinforcing steel bar are equal in number and correspond to each other, a bending section of each first U-shaped reinforcing steel bar and a bending section of each corresponding second U-shaped reinforcing steel bar are crossed to form a reinforcing steel bar encryption area, and the connecting end of each second U-shaped reinforcing steel bar is equal in number and corresponds to the subway station structural slab longitudinal rib at the corresponding connecting part;
the underground continuous wall is characterized in that steel plate boxes are arranged at positions corresponding to the connecting plates, the steel plate boxes are preset at one side, facing the inside of the foundation pit, in a steel reinforcement cage of the underground continuous wall, openable cover plates are arranged at one side, facing the inside of the foundation pit, of the steel plate boxes, back holes are formed in one side, facing the outside of the foundation pit, of the steel plate boxes, the back holes are equal to and correspond to the connecting ends of the first U-shaped steel bars at the corresponding connecting positions in number, anchoring bar connectors are arranged in the back holes, the outer ends of the anchoring bar connectors are connected with anchoring steel bars anchored in the steel reinforcement cage, after construction of the underground continuous wall is completed, the inner ends of the anchoring bar connectors are connected with the corresponding connecting ends of the first U-shaped steel bars, the connecting ends of the second U-shaped steel bars are connected with corresponding longitudinal bars of the subway station structure plate through the structural bar connectors respectively, and subway structure plate and connecting plate concrete are poured simultaneously, the underground diaphragm wall, the subway station structural slab and the connecting plate are connected into a whole.
As an optimal scheme of this scheme, the steel sheet box side still is equipped with the side hole that supplies the steel reinforcement cage to indulge the muscle and pass through.
As a preferred scheme of this scheme, a plurality of pegs that are used for strengthening the box body have evenly been arranged to the steel sheet box periphery, and the peg is fixed on the steel sheet box through the welded mode.
As a preferred scheme of the scheme, before the first U-shaped steel bar is connected with the anchoring steel bar, the cover plate is in a closed state to seal the steel plate box, and foam plastic is filled in the steel plate box.
As a preferable scheme of the scheme, the steel plate box and the cover plate are made of carbon steel or stainless steel and are connected through a fastener.
As a preferred scheme of the scheme, the anchoring steel bars, the first U-shaped steel bars and the second U-shaped steel bars are all HRB400 steel bars.
According to the scheme, the anchoring steel bars are arranged in the through length direction of the thickness direction of the underground continuous wall, one ends of the anchoring steel bars are connected with the outer end of the anchoring steel bar connector, and the other ends of the anchoring steel bars are bent by 90 degrees.
As a preferred scheme of this scheme, the position of underground continuous wall installation steel sheet box is equipped with the strengthening rib, and the reinforcement muscle adopts concave reinforcing bar, and concave reinforcing bar is along steel sheet box cross-section evenly distributed.
The utility model has the advantages that: the utility model provides an underground continuous wall and subway station structural slab node structure utilizes underground continuous wall's structure dead weight and the side frictional resistance of wall both sides and the whole anti structure of floating of subway station, and the use of reducible traditional anti stake of floating reduces engineering cost. The utility model discloses simple structure, construction convenience, the degree of difficulty is less, and excellent in use effect, easily promotes.
Drawings
FIG. 1 is a schematic plan view of the construction completion of the present invention;
FIG. 2 is a node structure diagram of the present invention;
FIG. 3 is a schematic structural view of a steel plate box;
FIG. 4 is a schematic view of the connection between the steel plate box and the cover plate;
FIG. 5 is a cross-sectional view of the wall body after the underground diaphragm wall is constructed;
FIG. 6 is a schematic view of the connection between the first U-shaped reinforcing bar and the anchoring bar connector;
in the figure, 1, underground continuous wall; 11. a reinforcement cage; 12. anchoring the reinforcing steel bars; 13. longitudinal bars of a reinforcement cage; 14. reinforcing ribs; 2. a subway station structural panel; 21. longitudinal bars of a structural slab of a subway station; 22. a structural bar connector; 3. a connecting plate; 31. a first U-shaped steel bar; 32. a second U-shaped steel bar; 4. a steel plate box; 41. a back hole; 42. an anchoring rib connector; 43. side holes; 44. a stud; 45. a foamed plastic; 5. a cover plate; 6. a fastener.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
As shown in fig. 1-6, a joint connection structure of an underground continuous wall and a subway station structural slab comprises an underground continuous wall 1, a subway station structural slab 2 and a plurality of connecting plates 3 for connecting the underground continuous wall 1 and the subway station structural slab 2, wherein the connecting plates 3 are arranged intermittently along the subway station structural slab 2; the subway station structural slab 2 comprises a subway station structural slab longitudinal rib 21, the connecting plate 3 comprises a connecting plate longitudinal rib, the connecting plate longitudinal rib comprises a first U-shaped steel rib 31 bending towards the outside of the foundation pit and a second U-shaped steel rib 32 bending towards the inside of the foundation pit, the first U-shaped steel rib 31 and the second U-shaped steel rib 32 are equal in number and correspond to each other, a bending section of each first U-shaped steel rib 31 and a bending section corresponding to the second U-shaped steel rib 32 are crossed to form a steel bar encryption area, and the connecting end of each second U-shaped steel rib 32 is equal in number and corresponds to the subway station structural slab longitudinal rib 21 at the corresponding connecting part;
the underground continuous wall 1 is provided with steel plate boxes 4 corresponding to the positions of the connecting plates 3, for convenience of processing and installation, the steel plate boxes 4 can be groove-shaped steel plates, the steel plate boxes 4 are preset on one side, facing the interior of the foundation pit, of the reinforcement cage 11 of the underground continuous wall 1, the side, facing the interior of the foundation pit, of the steel plate boxes 4 is provided with an openable cover plate 5, one side, facing the exterior of the foundation pit, of the steel plate boxes 4 is provided with back holes 41, the back holes 41 are equal in number and correspond to the connecting ends of the first U-shaped steel ribs 31 at the corresponding connecting parts, anchoring rib connectors 42 are arranged in the back holes 41, the outer ends of the anchoring rib connectors 42 are connected with the anchoring steel bars 12 anchored in the reinforcement cage 11, after the construction of the underground continuous wall 1 is completed, the inner ends of the anchoring rib connectors 42 are connected with the connecting ends of the corresponding first U-shaped steel ribs 31, the connecting ends of the second U-shaped steel ribs 32 are respectively connected with the corresponding longitudinal subway structure slab ribs 21 through the structure rib connectors 22, the underground diaphragm wall 1, the subway station structural slab 2 and the connecting plate 3 are connected into a whole by pouring the concrete of the subway station structural slab 2 and the connecting plate 3 at the same time.
4 sides of steel sheet box still are equipped with the side hole 43 that supplies steel reinforcement cage to indulge muscle 13 and pass through, can avoid indulging the influence of muscle 13 disconnection to wall body intensity because of steel reinforcement cage.
A plurality of studs 44 used for reinforcing the box body are uniformly arranged on the periphery of the steel plate box 4, and the studs 44 are fixed on the steel plate box 4 in a welding mode.
First U shaped steel muscle 31 with before anchor bar 12 is connected, apron 5 is in closed condition and seals steel sheet box 4, still fills in the steel sheet box 4 has foamed plastic 45, avoids the concrete to soak the box body.
The steel plate box 4 and the cover plate 5 are made of carbon steel or stainless steel and are connected through the fastener 6, so that the cover plate 5 can be conveniently disassembled and assembled, and the selection of materials can avoid rusting of the box body to influence the connection strength.
The anchoring steel bar 12, the first U-shaped steel bar 31 and the second U-shaped steel bar 32 are all HRB400 steel bars. The anchoring steel bars 12 are arranged in the through length direction along the thickness direction of the underground continuous wall 1, one end of each anchoring steel bar 12 is connected with the outer end of the anchoring bar connector 42, and the other end of each anchoring steel bar is bent by 90 degrees. Reinforcing ribs 14 are arranged at the positions where the steel plate boxes 4 are installed on the underground diaphragm wall 1, the reinforcing ribs 14 are concave reinforcing steel bars, and the concave reinforcing steel bars are uniformly distributed along the cross sections of the steel plate boxes 4.
The construction method of the joint connection structure comprises the following steps:
s1, embedding a steel plate box: when a steel reinforcement cage of the underground continuous wall is processed, a steel plate box is installed on the steel reinforcement cage in advance according to an anchoring position, anchoring steel bars are installed in the steel reinforcement cage, one end of each anchoring steel bar is connected with the outer end of an anchoring steel bar connector on the steel plate box, and reinforcing ribs are arranged at the anchoring position; before the steel reinforcement cage is placed downwards, plastic foam is filled in the steel plate box and sealed by a cover plate;
s2, connecting steel bars: after the construction of the underground continuous wall is completed, when a foundation pit is excavated to the position of a subway station structural slab, chiseling concrete on the surface layer of an embedded steel slab box, removing a cover plate, removing plastic foam and sundries on the surface of an anchoring rib connector, connecting the inner end of the anchoring rib connector with a first U-shaped steel bar, connecting a second U-shaped steel bar with a longitudinal bar of the subway station structural slab by using the structural rib connector, enabling the bending sections of the first U-shaped steel bar and the second U-shaped steel bar to be crossed to form a steel bar encryption area, and binding other steel bars;
s3, pouring concrete: and simultaneously pouring concrete of the subway station structural slab and the connecting plate, so that the underground diaphragm wall, the subway station structural slab and the connecting plate are connected into a whole.
The described embodiments are only some, but not all embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Claims (8)
1. A joint connection structure of an underground continuous wall and a subway station structural slab is characterized by comprising the underground continuous wall, the subway station structural slab and a plurality of connecting plates for connecting the underground continuous wall and the subway station structural slab, wherein the connecting plates are arranged discontinuously along the subway station structural slab; the subway station structural slab comprises a subway station structural slab longitudinal rib, the connecting plate comprises a connecting plate longitudinal rib, the connecting plate longitudinal rib comprises a first U-shaped reinforcing steel bar bending towards the outside of the foundation pit and a second U-shaped reinforcing steel bar bending towards the inside of the foundation pit, the first U-shaped reinforcing steel bar and the second U-shaped reinforcing steel bar are equal in number and correspond to each other, a bending section of each first U-shaped reinforcing steel bar and a bending section of each corresponding second U-shaped reinforcing steel bar are crossed to form a reinforcing steel bar encryption area, and the connecting end of each second U-shaped reinforcing steel bar is equal in number and corresponds to the subway station structural slab longitudinal rib at the corresponding connecting part;
the underground continuous wall is characterized in that steel plate boxes are arranged at positions corresponding to the connecting plates, the steel plate boxes are preset at one side, facing the inside of the foundation pit, in a steel reinforcement cage of the underground continuous wall, openable cover plates are arranged at one side, facing the inside of the foundation pit, of the steel plate boxes, back holes are formed in one side, facing the outside of the foundation pit, of the steel plate boxes, the back holes are equal to and correspond to the connecting ends of the first U-shaped steel bars at the corresponding connecting positions in number, anchoring bar connectors are arranged in the back holes, the outer ends of the anchoring bar connectors are connected with anchoring steel bars anchored in the steel reinforcement cage, after construction of the underground continuous wall is completed, the inner ends of the anchoring bar connectors are connected with the corresponding connecting ends of the first U-shaped steel bars, the connecting ends of the second U-shaped steel bars are connected with corresponding longitudinal bars of the subway station structure plate through the structural bar connectors respectively, and subway structure plate and connecting plate concrete are poured simultaneously, the underground diaphragm wall, the subway station structural slab and the connecting plate are connected into a whole.
2. The structure of claim 1, wherein the lateral side of the steel plate box is further provided with a lateral hole for passing the longitudinal reinforcement of the reinforcement cage.
3. The joint connection structure of the underground continuous wall and the subway station structural slab as claimed in claim 1, wherein a plurality of studs for reinforcing the box body are uniformly arranged on the periphery of the steel plate box, and the studs are fixed on the steel plate box in a welding manner.
4. The structure of claim 1, wherein before the first U-shaped steel bar is connected to the anchoring steel bar, the cover plate is closed to seal the steel plate box, and the steel plate box is filled with foam plastic.
5. The structure for connecting an underground diaphragm wall and a subway station structural slab node as claimed in claim 1, wherein said steel plate box and cover plate are made of carbon steel or stainless steel and are connected by fasteners.
6. The underground continuous wall and subway station structural slab node connection structure as claimed in claim 1, wherein said anchoring reinforcing bar, first U-shaped reinforcing bar and second U-shaped reinforcing bar all adopt HRB400 reinforcing bar.
7. The structure of claim 1, wherein the anchoring bar is disposed along the entire length of the underground diaphragm wall in the thickness direction, one end of the anchoring bar is connected to the outer end of the anchoring bar connector, and the other end of the anchoring bar is bent at 90 °.
8. The structure of claim 1, wherein reinforcing ribs are provided at positions where the steel plate boxes are installed on the underground diaphragm wall, the reinforcing ribs are concave reinforcing steel bars, and the concave reinforcing steel bars are uniformly distributed along the cross section of the steel plate boxes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120102927.1U CN214401900U (en) | 2021-01-15 | 2021-01-15 | Underground continuous wall and subway station structural slab node connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120102927.1U CN214401900U (en) | 2021-01-15 | 2021-01-15 | Underground continuous wall and subway station structural slab node connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214401900U true CN214401900U (en) | 2021-10-15 |
Family
ID=78046666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120102927.1U Expired - Fee Related CN214401900U (en) | 2021-01-15 | 2021-01-15 | Underground continuous wall and subway station structural slab node connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214401900U (en) |
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2021
- 2021-01-15 CN CN202120102927.1U patent/CN214401900U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211015 |