CN211665555U - Hollow pier structure with bottom enlarged cross section - Google Patents
Hollow pier structure with bottom enlarged cross section Download PDFInfo
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- CN211665555U CN211665555U CN202020038109.5U CN202020038109U CN211665555U CN 211665555 U CN211665555 U CN 211665555U CN 202020038109 U CN202020038109 U CN 202020038109U CN 211665555 U CN211665555 U CN 211665555U
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- cavity
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- 239000004567 concrete Substances 0.000 claims abstract description 53
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 230000002787 reinforcement Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 7
- 238000010008 shearing Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to the technical field of bridge piers, and discloses a hollow bridge pier structure with an enlarged bottom section, which comprises a bearing platform and a bridge pier, wherein the bridge pier comprises a base and a support column fixed on the base, the base is provided with a bottom surface arranged towards the direction of the bearing platform, a cavity is arranged inside the base, an opening is formed on the bottom surface, the opening is communicated with the cavity, and the base is buckled on the bearing platform; the cross-sectional area of the base is larger than that of the support column; concrete is filled in the cavity; the contact area between the base and the bearing platform is increased by increasing the section area of the base, so that the stability of the bridge in the supporting process can be increased, the increased base can also enhance the shearing resistance, the allowable damage capability of a bottom segment of the bridge pier is improved, and the durability of the bridge pier is improved; has strong practicability.
Description
Technical Field
The patent of the utility model relates to a technical field of pier particularly, relates to a hollow pier structure of bottom enlarged cross-section.
Background
The bridge refers to a building constructed for a road to cross natural or artificial barriers, and is erected on rivers, lakes and seas, so that vehicles, pedestrians and the like can smoothly pass through the bridge. The bridge generally consists of an upper structure, a lower structure and an auxiliary structure, wherein the upper structure mainly refers to a bridge span structure and a support system; the substructure includes a bridge abutment, a pier and a foundation.
In the prior art, a bridge is supported above a pier, and the lower part of the pier is abutted against a bearing platform embedded in a soil layer.
The traditional pier is generally of a cylindrical structure, the section of the bottom of the pier is small, and the problem of poor shearing resistance exists at the segment where the bottom of the pier is connected with a bearing platform.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a bottom enlarges cross-section's hollow pier structure aims at solving prior art, and there is the relatively poor problem of shear behavior in the segment portion of pier bottom and cushion cap.
The utility model discloses a hollow pier structure with enlarged bottom cross section, which comprises a bearing platform and a pier, wherein the pier comprises a base and a support column fixed on the base, the base is provided with a bottom surface arranged towards the direction of the bearing platform, a cavity is arranged in the base, an opening is formed on the bottom surface, the opening is communicated with the cavity, and the base is buckled on the bearing platform; the cross-sectional area of the base is larger than that of the support column; concrete is filled in the cavity.
Furthermore, the bearing platform is provided with a supporting surface arranged towards the pier direction, a plurality of steel bar columns are arranged inside the bearing platform, extend out of the supporting surface and are arranged in the cavity, and the steel bar columns penetrate through the concrete.
Further, a concrete injection through hole is formed in the base.
Further, a concrete control through hole is formed in the base.
Further, the concrete injection through-hole is disposed at the bottom of the sidewall of the base, and the concrete control through-hole is disposed at the top of the base.
Further, the base is arranged in a shape of being small in top and large in bottom.
Further, the base comprises a lower vertical section and an upper inclined section, and the vertical section and the inclined section are integrally formed and arranged; the outer diameter of the side wall of the inclined section is gradually reduced along the bottom-to-top direction of the inclined section.
Further, the height of the reinforcing steel bar column is consistent with the height of the vertical section.
Furthermore, a sealing cover plate is sealed at the top of the inclined section, the sealing cover plate and the inclined section are integrally formed and arranged, the concrete control through hole is formed in the sealing cover plate, and the concrete control through hole is communicated with the cavity.
Further, the inside wall of base is unevenness form and arranges.
Compared with the prior art, the hollow pier structure with the bottom enlarged cross section provided by the utility model has the advantages that the contact area between the base and the bearing platform is increased by increasing the cross section area of the base, so that the stability in the supporting process of the bridge can be increased, the increased base can also enhance the shearing resistance, the allowable damage capability of the pier bottom segment is improved, and the durability of the pier is improved; has strong practicability.
Drawings
Fig. 1 is a schematic cross-sectional view of a first embodiment of a hollow pier structure with an enlarged bottom cross section according to the present invention;
fig. 2 is a schematic cross-sectional view of a hollow pier structure with an enlarged bottom cross section according to a second embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of a hollow pier structure with an enlarged bottom cross section according to a third embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Referring to fig. 1 to 3, the preferred embodiment of the present invention is shown.
The hollow pier structure 10 with the enlarged bottom section provided by the embodiment is not limited to be used for piers, and can also be used for supporting other building structures.
A hollow pier structure with a bottom enlarged section comprises a bearing platform 20 and a pier 5, wherein the pier 5 comprises a base 50 and a support column 54 fixed on the base 50, the base 50 is provided with a bottom surface arranged towards the direction of the bearing platform 20, a cavity 30 is arranged inside the base 50, an opening is formed in the bottom surface and communicated with the cavity 30, and the base 50 is buckled on the bearing platform 20; the cross-sectional area of the base 50 is greater than the cross-sectional area of the support column 54; the cavity 30 is filled with concrete.
According to the hollow pier structure with the bottom enlarged section, the contact area between the base 50 and the bearing platform 20 is increased by increasing the section area of the base 50, so that the stability in the bridge supporting process can be increased, the increased base 50 can also enhance the shearing resistance, the allowable damage capacity of the bottom section of the pier 5 is improved, the influence of horizontal shearing force on the pier 5 is reduced, and the durability of the pier 5 is improved; has strong practicability.
On the other hand, compared with the conventional pier 5 structure, the pier 5 structure provided by the scheme is connected with the bearing platform 20 by pouring concrete into the cavity 30 in the base 50, that is, the connection part of the base 50 and the bearing platform 20 is located in the base 50, so that in the use process, the interference of wind blowing and water erosion can be avoided, and the stability in the supporting process and the service life of the pier 5 can be further improved.
Moreover, for the construction of the existing pier 5, the scheme only needs to place the pier 5 on the bearing platform 20, pour concrete into the cavity 30 of the base 50, and after the concrete is solidified, the construction steps are faster, and the construction operation is convenient.
The bearing platform 20 is provided with a supporting surface arranged towards the direction of the pier 5, the plurality of reinforcing steel columns 40 are arranged inside the bearing platform 20, the plurality of reinforcing steel columns 40 extend out of the supporting surface and are arranged in the cavity 30, the reinforcing steel columns 40 penetrate through concrete, so that a reinforced concrete structure is formed, the reinforced concrete is attached and fixed to the supporting surface of the bearing platform 20 and the inner side wall of the base 50, the fixing area and the strength of the pier 5 are increased, and the stability of fixing the pier 5 is further enhanced.
The base 50 is prefabricated in the factory, and, before installing base 50, can build earlier cushion cap 20, and reserve many steel bar columns 40, the top of steel bar column 40 extends to the holding surface top, again with base 50 lock on the holding surface, at this moment, steel bar column 40 is arranged in the inside cavity 30 of base 50, later pours into the concrete.
The base 50 is provided with a concrete injection through-hole 60, and the concrete injection through-hole 60 is used for injecting concrete into the cavity 30.
In addition, the base 50 is provided with a concrete control through hole 90, and the condition of the concrete injected into the cavity 30 can be observed immediately through the concrete control through hole 90, so that the grouting operation is facilitated.
The concrete pours into the through-hole 60 and arranges the bottom at the lateral wall of base 50, and concrete control through-hole 90 arranges the top at base 50, when pouring concrete, the concrete enters into cavity 30 along concrete pours into the through-hole 60 in, along with the concrete constantly gathers, the liquid level of concrete rises gradually, when concrete overflows from the concrete control through-hole 90 at base 50 top, show that the concrete in the cavity 30 has filled, the pouring is accomplished, the benefit of pouring concrete from top to bottom is: the concrete thick liquid moves up the in-process, can be with the better filling up in bubble and the space in the cavity 30, on the other hand, the concrete thick liquid that pours from the bottom is at the in-process of filling cavity 30, and the liquid level of concrete thick liquid slowly rises, relative from last pouring down, pours ground more evenly, further improves the pouring quality of concrete.
The base 50 is arranged in a shape of a small top and a large bottom, so that the base 50 can play a supporting function, construction raw materials can be saved, and the construction cost is reduced.
Specifically, the base 50 includes a lower vertical section 51 and an upper inclined section 52, and the vertical section 51 and the inclined section 52 are integrally formed; the outer diameter of the side wall of the inclined section 52 gradually decreases in the bottom-to-top direction of the inclined section 52.
The height of the reinforcement column 40 corresponds to the height of the vertical section 51 so that the reinforcement column 40 does not interfere with the base 50 during installation of the base 50.
The top of the inclined section 52 is sealed with the cover plate 53, the cover plate 53 and the inclined section 52 are integrally formed, the concrete control through hole 90 is arranged in the cover plate 53, the concrete control through hole 90 is communicated with the cavity 30, the structures of the inclined section 52 and the vertical section 51 cannot be damaged, the strength of the inclined section 52 and the vertical section cannot be influenced, and meanwhile, the effect of monitoring the concrete pouring condition can be exerted.
The inside wall of base 50 is the unevenness form and arranges, and the frictional force on increase inside wall surface is convenient for the contact bonding between concrete and the base 50.
In another embodiment, the middle of the supporting surface of the platform 20 is protruded toward the cavity 30, and the protruded block 70 is formed, so that the contact area between the concrete and the platform 20 is larger during the concrete pouring process, and the pouring amount of the concrete is saved, thereby achieving the effect of saving time and materials.
In addition, a plurality of concave grooves 71 are formed on the convex block 70, and slurry is poured into the concave grooves 71 during the concrete pouring process, so that the contact area with the bearing platform 20 is further increased.
Of course, the supporting surface of the platform 20 may be recessed downward to form the recessed groove 80, which may also increase the contact area between the concrete grout and the platform 20 and improve the stability of the fixing.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A hollow pier structure with a bottom enlarged section is characterized by comprising a bearing platform and a pier, wherein the pier comprises a base and a support column fixed on the base, the base is provided with a bottom surface arranged towards the direction of the bearing platform, a cavity is arranged in the base, an opening is formed in the bottom surface, the opening is communicated with the cavity, and the base is buckled on the bearing platform; the cross-sectional area of the base is larger than that of the support column; concrete is filled in the cavity.
2. The hollow pier structure with the enlarged bottom section according to claim 1, wherein the bearing platform has a supporting surface arranged in a direction towards the pier, a plurality of steel bar columns are arranged inside the bearing platform, the steel bar columns extend out of the supporting surface and are arranged in the cavity, and the steel bar columns are arranged in the concrete in a penetrating mode.
3. A hollow pier structure with an enlarged bottom section according to claim 2, wherein the foundation is provided with concrete injection through holes.
4. A hollow pier structure with an enlarged bottom section according to claim 3, wherein the foundation is provided with concrete control through holes.
5. A hollow pier structure with an enlarged bottom section according to claim 4, wherein the concrete injection through-holes are formed in the bottom of the side wall of the foundation, and the concrete control through-holes are formed in the top of the foundation.
6. A hollow pier structure with an enlarged bottom section according to any one of claims 1 to 5, wherein the pedestals are arranged in a shape of a small top and a large bottom.
7. The hollow pier structure with the enlarged bottom section according to claim 4, wherein the base comprises a lower vertical section and an upper inclined section, and the vertical section and the inclined section are integrally arranged; the outer diameter of the side wall of the inclined section is gradually reduced along the bottom-to-top direction of the inclined section.
8. A hollow pier structure with an enlarged bottom section according to claim 7, wherein the height of the reinforcement column is the same as the height of the vertical section.
9. The hollow pier structure with the enlarged bottom section according to claim 7, wherein a cover plate is sealed at the top of the inclined section, the cover plate and the inclined section are integrally arranged, the concrete control through hole is formed in the cover plate, and the concrete control through hole is communicated with the cavity.
10. The structure of a hollow pier with an enlarged bottom section according to claim 1, wherein the inner side wall of the base is formed in an uneven arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020038109.5U CN211665555U (en) | 2020-01-08 | 2020-01-08 | Hollow pier structure with bottom enlarged cross section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020038109.5U CN211665555U (en) | 2020-01-08 | 2020-01-08 | Hollow pier structure with bottom enlarged cross section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211665555U true CN211665555U (en) | 2020-10-13 |
Family
ID=72738785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020038109.5U Active CN211665555U (en) | 2020-01-08 | 2020-01-08 | Hollow pier structure with bottom enlarged cross section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211665555U (en) |
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2020
- 2020-01-08 CN CN202020038109.5U patent/CN211665555U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 518000 2001, building 2, chuangxiang building, Oct, North Station community, Minzhi street, Longhua District, Shenzhen, Guangdong Province Patentee after: Shenzhen Municipal Group Co.,Ltd. Country or region after: China Address before: 518109 Guangdong Shenzhen Longhua New District, Longhua street, Heping Road East, dragon science park, science and technology incubator, 6 floor, D and G Patentee before: SHENZHEN MUNICIPAL ENGINEERING Corp. Country or region before: China |
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| CP03 | Change of name, title or address |