CN216765557U - Pile slab bridge supporting structure - Google Patents
Pile slab bridge supporting structure Download PDFInfo
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- CN216765557U CN216765557U CN202220009594.2U CN202220009594U CN216765557U CN 216765557 U CN216765557 U CN 216765557U CN 202220009594 U CN202220009594 U CN 202220009594U CN 216765557 U CN216765557 U CN 216765557U
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Abstract
The utility model belongs to the technical field of bridge construction, and discloses a pile slab bridge supporting structure which comprises a profile steel bearing frame, a first end supporting pile, a second end supporting pile, a plurality of middle supporting piles and a plurality of supporting pieces, wherein the profile steel bearing frame spans a river and is used for constructing a bridge span structure; the first end supporting pile is supported at one end of the section steel bearing frame; the second end supporting pile is supported at the other end of the section steel bearing frame; a plurality of middle supporting piles are arranged along the transverse direction, and pile extension of the middle supporting piles are connected to the top of the middle pile foundation; the first I-steel is horizontally embedded in the pile extension, and two ends of the first I-steel extend out of the side wall of the pile extension to form two cantilever beams; a plurality of supports extend in the lateral direction, and the supports are supported between the section steel carrier and the cantilever beam. The pile slab bridge supporting structure provided by the utility model can be erected under the working condition that the designed elevation of the bridge is close to the water level, so that the smooth construction of the bridge is ensured.
Description
Technical Field
The utility model belongs to the technical field of bridge construction, and particularly relates to a pile-plate bridge supporting structure.
Background
In bridge engineering, a supporting structure is generally formed firstly, then a mold is built on the supporting structure, and then a bridge span structure of a bridge is formed through construction in the mold, so that the structure and the construction process of the supporting structure are complex.
A general supporting structure comprises a Bailey truss, and the Bailey truss improves the erection speed of the supporting structure. However, in the case where the designed elevation of the bridge is close to the water level, the bailey frames are submerged in the water if the bailey frames are erected, and therefore, under such a condition, the bridge cannot be constructed by using the existing support structure.
Therefore, a need exists for a pile-plate bridge supporting structure that solves the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a pile-plate bridge supporting structure which can be erected under the working condition that the designed elevation of a bridge is close to the water level so as to ensure the smooth construction of the bridge.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a pile plate bridge support structure comprising:
the section steel bearing frame spans the river and is used for building a bridge span structure;
the first end supporting pile is positioned on one side of the river and is supported at one end of the section steel bearing frame;
the second end supporting pile is positioned on the other side of the river and is supported at the other end of the section steel bearing frame;
a plurality of intermediate support piles arranged in a lateral direction, the intermediate support piles including:
the middle pile foundation is arranged in the middle of the river;
the pile extension is connected to the top of the middle pile foundation;
the first I-shaped steel is horizontally embedded in the pile extension, and two ends of the first I-shaped steel extend out of the side wall of the pile extension to form two cantilever beams;
a plurality of supports extending along the lateral direction, the supports being supported between the section steel carrier and the cantilever beam.
Preferably, the support member includes a second i-beam and a first temporary support, the first temporary support is disposed on the cantilever beam, and the second i-beam extends along the transverse direction and is disposed between the first temporary support and the bearing frame.
Preferably, the concrete strength of the pile extension is higher than that of the intermediate pile foundation.
Preferably, the river further comprises two flange supporting piles, the flange supporting piles are located in the middle of the river, the two flange supporting piles are respectively arranged at two ends of the queue of all the middle supporting piles, and the flange supporting piles are supported on the section steel bearing frame.
Preferably, the flange supporting pile includes:
the two support columns are distributed at intervals along the longitudinal direction;
and the connecting piece is connected between the two support columns.
Preferably, the first end support pile comprises:
the first end pile foundations are arranged on one side of the river and are distributed along the transverse direction;
and the first foundation beam extends along the transverse direction, is arranged on one side of the first end pile foundation facing the river, and is supported on the section steel bearing frame.
Preferably, the first end support pile further comprises a first reinforced concrete cushion layer, the first reinforced concrete cushion layer is arranged on the lower portion of the first foundation beam and extends along the transverse direction, one half of the first end pile foundation in the circumferential direction is embedded in the first reinforced concrete cushion layer, and a reinforced mesh is arranged in the first reinforced concrete cushion layer.
Preferably, a foam plate is arranged between the first reinforced concrete cushion layer and the first end pile foundation.
Preferably, the section steel bearing frame comprises a plurality of third I-beams and a plurality of fourth I-beams, the third I-beams extend longitudinally and are arranged at intervals along the transverse direction, two ends of the third I-beams are erected on the first end supporting piles and the second end supporting piles respectively, the fourth I-beams extend transversely and are arranged at intervals along the longitudinal direction, and the fourth I-beams are erected on the third I-beams.
A pile-plate bridge supporting method constructs the pile-plate bridge supporting structure, and comprises the following steps:
pouring a first end support pile and a second end support pile;
pouring an intermediate pile foundation;
binding pile splicing reinforcing steel bars on the upper part of the middle pile foundation, and simultaneously embedding first I-shaped steel;
installing a steel template, and enabling a first I-shaped steel to penetrate through a reserved hole in the steel template;
pouring concrete into the steel formwork to form a pile extension, wherein the first I-shaped steel positioned outside is a cantilever beam;
mounting a support member on the cantilever beam;
and erecting a section steel bearing frame on the first end supporting pile, the second end supporting pile and the supporting piece.
The utility model has the beneficial effects that:
the utility model provides a pile slab bridge supporting structure, wherein an intermediate supporting pile is constructed in the middle of a river and supported in the middle of a section steel bearing frame, so that the supporting strength of the section steel bearing frame is ensured, and meanwhile, due to the supporting effect of the intermediate supporting pile, the structure of the section steel bearing frame is simple compared with a Bailey frame, can be erected under the working condition that the designed elevation of a bridge is close to the water level and cannot be submerged in water, and meanwhile, the function of reducing materials is also achieved; utilize first I-steel as main stress point, and first I-steel is pre-buried in the pile extension, have higher stability, further guaranteed the support intensity to shaped steel bearing frame. Therefore, the pile-plate bridge supporting structure provided by the utility model can be erected under the working condition that the designed elevation of the bridge is close to the water level, so that the smooth construction of the bridge is ensured.
Drawings
Fig. 1 is a longitudinal sectional view of a pile-plate bridge support structure provided by an embodiment of the utility model;
FIG. 2 is an enlarged view at A in FIG. 1;
figure 3 is a plan view of a pile-plate bridge support structure provided by an embodiment of the utility model;
FIG. 4 is a schematic view of a flange support pile provided by an embodiment of the present invention;
fig. 5 is a schematic view of a first reinforced concrete cushion layer and a first end pile foundation according to an embodiment of the present invention;
fig. 6 is a plan view of a second i-beam provided by an embodiment of the present invention.
In the figure:
10. a bridge span structure; 20. a road; 30. a river;
1. a section steel bearing frame; 2. a first end support pile; 3. a second end support pile; 5. a support member; 6. supporting the pile by using a flange;
11. a third I-steel; 12. a fourth I-shaped steel; 13. 14a I-steel; 14. square wood; 21. a first end pile foundation; 22. a first foundation beam; 23. a first reinforced concrete cushion layer; 24. a foam board; 25. grouting and building a block stone retaining wall; 26. a concrete layer; 31. a second end pile foundation; 32. a second foundation beam; 33. a second reinforced concrete cushion layer; 41. an intermediate pile foundation; 42. pile splicing; 43. a first I-steel; 51. a second I-steel; 52. a first temporary support; 53. reinforcing steel bars; 61. a support pillar; 62. a connecting member; 63. a bracket; 64. double-spliced 36a I-steel; 65. and fifth I-shaped steel.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar parts throughout or parts having the same or similar functions. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "mounted" are to be construed broadly, e.g., as meaning both connected and disconnectable, mechanically and electrically, directly or indirectly via intermediate media, whether internal or external to the elements, or in any other relationship between the elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature being in contact not directly but with another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1 to 6, the present embodiment provides a pile-plate bridge support structure including a section steel carrier 1, a first end support pile 2, a second end support pile 3, a plurality of intermediate support piles and a plurality of supports 5, the section steel carrier 1 crossing a river 30 on which a bridge span structure 10 is constructed; the first end supporting pile 2 is positioned at one side of the river 30 and is supported at one end of the section steel bearing frame 1; the second end supporting pile 3 is positioned at the other side of the river 30 and is supported at the other end of the section steel bearing frame 1; the plurality of intermediate support piles are arranged in a transverse direction, which represents a flow direction of the river 30, and a longitudinal direction, which represents a direction crossing the river 30, i.e., an extending direction of the road 20. The middle supporting pile comprises a middle pile foundation 41, a pile extension 42 and a first I-shaped steel 43, the middle pile foundation 41 is arranged in the middle of the river 30, and the pile extension 42 is connected to the top of the middle pile foundation 41; the first I-shaped steel 43 is horizontally embedded in the pile extension 42, and two ends of the first I-shaped steel 43 extend out of the side wall of the pile extension 42 to form two cantilever beams; a plurality of supports 5 extend in the transverse direction, the supports 5 being supported between the profiled steel carrier 1 and the cantilever beam.
According to the pile slab bridge supporting structure provided by the embodiment, the middle supporting pile is constructed in the middle of the river 30 and supported in the middle of the section steel bearing frame 1, so that the supporting strength of the section steel bearing frame 1 is guaranteed, and meanwhile, due to the supporting effect of the middle supporting pile, the structure of the section steel bearing frame 1 is simple compared with a Bailey frame, can be erected under the working condition that the designed elevation of the bridge is close to the water level and cannot be submerged in water, and meanwhile, the effect of reducing materials is achieved; the first I-shaped steel 43 is used as a main stress point, and the first I-shaped steel 43 is pre-embedded in the pile extension 42, so that the stability is high, and the supporting strength of the section steel carrying frame 1 is further ensured. Therefore, the pile slab bridge supporting structure that this embodiment provided can set up under the closer operating mode of bridge design elevation and water level to guarantee the smooth construction of bridge.
Specifically, in the present embodiment, 45a h-beam is used as the first h-beam 43.
In order to ensure the firmness of fixing the first i-beam 43, the concrete strength of the pile extension 42 is higher than that of the middle pile foundation 41.
Specifically, the support 5 includes a second i-beam 51 and a first temporary support 52, the first temporary support 52 is disposed on the cantilever beam, the second i-beam 51 extends in the transverse direction, and the second i-beam 51 is disposed between the first temporary support 52 and the carrier 1. In the present embodiment, 50a h-beam is used as the second h-beam 51.
As shown in fig. 2 and 6, in the present embodiment, two second i-beams 51 are provided, and the second i-beams 51 are provided on the first temporary support 52 along the transverse length. The upper part and the lower part between the two second I-beams 51 are welded and fixed by adopting the steel bars 53, and the steel bars 53 are connected with the pile extension 42 by adopting a column-embracing connection method at the contact part to prevent the second I-beams 51 from being unstable.
Specifically, shaped steel bears frame 1 includes a plurality of third I-steel 11 and a plurality of fourth I-steel 12, and a plurality of third I-steel 11 all along longitudinal extension, and arrange along horizontal mutual interval, and third I-steel 11 sets up simultaneously on first end supports stake 2, support piece 5 and second end support stake 3, and a plurality of fourth I-steel 12 all along transverse extension, and arrange along vertical mutual interval, and fourth I-steel 12 sets up on third I-steel 11. In the embodiment, 36a h-beams are used for the third h-beam 11 and the fourth h-beam 12. The middle part of the third i-beam 11 is lapped on the second i-beam 51.
More specifically, the fourth i-steel 12 is bridged with a longitudinally extending 14a i-steel 13, and the 14a i-steel 13 is overlaid with a square timber 14 to form the bottom of the mold of the bridge structure 10.
As shown in fig. 1 and 5, the first end support pile 2 includes a plurality of first end pile foundations 21 and a first foundation beam 22, and the plurality of first end pile foundations 21 are disposed at one side of the river 30 and arranged in a transverse direction; the first foundation beam 22 extends in the transverse direction, the first foundation beam 22 is disposed on the side of the first end pile foundation 21 facing the river 30, and the first foundation beam 22 is supported by the section steel bearing frame 1. Specifically, the first foundation beam 22 is a C30 reinforced concrete foundation beam, and the upper and lower steel bars are arranged in the beam.
Specifically, the first end support pile 2 further includes a first reinforced concrete cushion layer 23, the first reinforced concrete cushion layer 23 is disposed on the lower portion of the first foundation beam 22 and extends along the transverse direction, a half of the first end pile foundation 21 in the circumferential direction is embedded in the first reinforced concrete cushion layer 23, and a reinforced mesh is disposed in the first reinforced concrete cushion layer 23. The setting of first reinforced concrete bed course 23 has improved the support intensity to shaped steel bearing frame 1, and half of the circumference of first end pile foundation 21 has further improved support intensity embedded in first reinforced concrete bed course 23.
Further, a grouted block stone retaining wall 25 is arranged below the first reinforced concrete cushion layer 23, and a concrete layer 26 is arranged below the grouted block stone retaining wall 25.
As shown in fig. 1, a foam plate 24 is disposed between the first reinforced concrete cushion layer 23 and the first end pile foundation 21 to prevent uneven settlement from pressing the pile body of the first end pile foundation 21.
A foam slab 24 is provided between the first end pile foundation 21 and the first foundation beam 22 to prevent uneven settlement from pressing the shaft of the first end pile foundation 21.
The structure of the second end supporting pile 3 is similar to that of the first end supporting pile 2, and also comprises a second end pile foundation 31, a second foundation beam 32, a second reinforced concrete cushion layer 33 and the like, the third i-steel 11 of the profile steel bearing frame 1 is erected on the first foundation beam 22, the second i-steel 51 and the second foundation beam 32, and the rest structures and the specific position distribution of the second end supporting pile 3 are not described again.
As shown in fig. 3, the pile-slab bridge supporting structure provided in this embodiment further includes two flange supporting piles 6, the flange supporting piles 6 are located in the middle of the river 30, the two flange supporting piles 6 are respectively disposed at two ends of the queue of all the middle supporting piles, and the flange supporting piles 6 are supported by the section steel bearing frame 1. The flange support piles 6 are used to support the edges of the section steel carrier 1 to construct the flanges of the bridge span structure 10.
Specifically, as shown in fig. 4, the flange supporting piles 6 include two supporting columns 61 and connecting members 62, the two supporting columns 61 are spaced apart in the longitudinal direction, and the connecting members 62 are connected between the two supporting columns 61. In this embodiment, the support post 61 is made of a steel pipe, and the connector 62 is made of C14 channel steel. In this embodiment, adopt two double pin C14 channel-section steels to connect between two support columns 61, add the batten between the double pin C14 channel-section steel, add corbel 63 and steel pipe welding under the C14 channel-section steel, electric welding is fixed around C14 channel-section steel and steel pipe and corbel 63 contact position, increases overall stability.
More specifically, in this embodiment, two support columns 61 of the same flange support pile 6 are respectively provided with a double-spliced 36a i-beam 64, the two double-spliced 36a i-beams 64 are provided with a fifth i-beam 65, and two ends of the second i-beam 51 are respectively overlapped on the two fifth i-beams 65. The fifth i-beam 65 is a 36a i-beam.
A method of constructing the pile-slab bridge support structure provided by the present embodiment is briefly described as follows:
s1, pouring the first end support pile 2 and the second end support pile 3;
the first end support pile 2 and the second end support pile 3 are cast according to the existing construction method, and the detailed description is omitted.
S2, pouring the intermediate pile foundation 41;
s3, binding pile splicing steel bars on the upper part of the middle pile foundation 41, and embedding the first I-shaped steel 43;
the height of the intermediate pile foundation 41 poured in the step S2 is higher than the design height, after the pouring is completed, the pile head with the appropriate height is broken to make the remaining height be the design height, and then pile splicing reinforcing steel bars are bound on the upper portion of the pile head, and the first i-shaped steel 43 is embedded.
S4, installing a steel template, and enabling the first I-shaped steel 43 to penetrate out of a reserved hole in the steel template;
the steel template is combined according to the upper, middle and lower blocks, and the processed middle section steel template is holed according to the structural size of the first I-shaped steel 43.
S5, pouring concrete into the steel formwork to form a pile 42, wherein the first I-shaped steel 43 positioned outside is a cantilever beam;
s6, mounting a support 5 on the cantilever beam;
s7, erecting a steel section bearing frame 1 on the first end supporting piles 2, the second end supporting beams 3 and the supporting pieces 5.
In steps S2 to S7, a steel casing is driven into the river 30, and a constructor operates the river in the steel casing, and pulls out the steel casing in time after the operation is completed.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A pile plate bridge support structure, comprising:
a steel section bearing frame (1) which crosses river flow (30) and is used for building a bridge span structure (10);
the first end supporting pile (2) is positioned on one side of the river (30) and is supported at one end of the section steel bearing frame (1);
the second end supporting pile (3) is positioned on the other side of the river (30) and is supported at the other end of the section steel bearing frame (1);
a plurality of intermediate support piles arranged in a lateral direction, the intermediate support piles comprising:
an intermediate pile foundation (41) provided in the middle of the river (30);
a pile extension (42) connected to the top of the intermediate pile foundation (41);
the first I-shaped steel (43) is horizontally embedded in the pile extension (42), and two ends of the first I-shaped steel (43) extend out of the side wall of the pile extension (42) to form two cantilever beams;
a plurality of supports (5) extending in the transverse direction, the supports (5) being supported between the section steel carrier (1) and the cantilever beam.
2. Pile-plate-bridge support structure according to claim 1, characterised in that the support (5) comprises a first temporary support (52) and a second i-steel (51), the first temporary support (52) being arranged on the cantilever beam, the second i-steel (51) extending in the transverse direction and being arranged between the first temporary support (52) and the carrier (1).
3. The pile-plate bridge support structure according to claim 1, characterized in that the concrete strength of the pile extension (42) is higher than the concrete strength of the intermediate pile foundation (41).
4. The pile-plate bridge support structure according to claim 1, further comprising two flange support piles (6), wherein the flange support piles (6) are located in the middle of the river (30), the two flange support piles (6) are respectively disposed at both ends of the middle support piles in line, and the flange support piles (6) are supported on the section steel bearing frame (1).
5. Pile-plate bridge support structure according to claim 4, characterised in that the flange support piles (6) comprise:
two support columns (61) which are distributed at intervals along the longitudinal direction;
and the connecting piece (62) is connected between the two supporting columns (61).
6. Pile-plate-bridge support structure according to claim 1, characterised in that the first end support pile (2) comprises:
a plurality of first end pile foundations (21) arranged at one side of the river (30) and arranged along the transverse direction;
a first foundation beam (22) extending in the transverse direction, the first foundation beam (22) being provided on a side of the first end piling (21) facing the river (30), the first foundation beam (22) being supported by the steel section bearing frame (1).
7. The pile-slab bridge support structure according to claim 6, wherein the first end support pile (2) further comprises a first reinforced concrete cushion layer (23), the first reinforced concrete cushion layer (23) is arranged at the lower part of the first foundation beam (22) and extends along the transverse direction, a half of the first end pile foundation (21) in the circumferential direction is embedded in the first reinforced concrete cushion layer (23), and a reinforced mesh sheet is arranged in the first reinforced concrete cushion layer (23).
8. The pile plate bridge support structure according to claim 7, wherein a foam plate (24) is provided between the first reinforced concrete underlayment (23) and the first end pile foundation (21).
9. Pile-plate bridge support structure according to claim 6, characterized in that a foam plate (24) is arranged between the first end pile foundation (21) and the first foundation beam (22).
10. The pile plate bridge support structure according to any one of claims 1 to 9, wherein the section steel carrier (1) comprises a plurality of third i-beams (11) and a plurality of fourth i-beams (12), the plurality of third i-beams (11) extend in the longitudinal direction and are arranged at intervals along the transverse direction, both ends of the third i-beams (11) are respectively lapped on the first end support pile (2) and the second end support pile (3), the plurality of fourth i-beams (12) extend in the transverse direction and are arranged at intervals along the longitudinal direction, and the fourth i-beams (12) are lapped on the third i-beams (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220009594.2U CN216765557U (en) | 2022-01-05 | 2022-01-05 | Pile slab bridge supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220009594.2U CN216765557U (en) | 2022-01-05 | 2022-01-05 | Pile slab bridge supporting structure |
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| CN216765557U true CN216765557U (en) | 2022-06-17 |
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| CN202220009594.2U Active CN216765557U (en) | 2022-01-05 | 2022-01-05 | Pile slab bridge supporting structure |
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- 2022-01-05 CN CN202220009594.2U patent/CN216765557U/en active Active
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