CN205295920U - An area supporting beam's thin wall abutment structure - Google Patents
An area supporting beam's thin wall abutment structure Download PDFInfo
- Publication number
- CN205295920U CN205295920U CN201521040842.6U CN201521040842U CN205295920U CN 205295920 U CN205295920 U CN 205295920U CN 201521040842 U CN201521040842 U CN 201521040842U CN 205295920 U CN205295920 U CN 205295920U
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- CN
- China
- Prior art keywords
- cushion cap
- supporting beam
- cap
- abutment
- pile foundation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to an area supporting beam's thin wall abutment structure sets up the cushion cap including platform cap, abutment body, ear wall, cushion cap, supporting beam and pile foundation in, the cushion cap top sets up the abutment body, is provided with a cap on the abutment body, and the ear wall is connected with the platform cap, supporting beam set up in cushion cap leading flank bottom, along horizontal equidistant the arranging of cushion cap, to connect into an atress whole with the cushion cap, prop up supporting beam cross -section form and be the rectangle, adopt reinforced concrete structure. Supporting beam bears the horizontal thrust that all or greater part soil lateral pressure produced to abutment body, cushion cap, because a supporting beam's existence will make the pile foundation relax, to lean forward the quantitative change little for the abutment body simultaneously. After setting up a cushion cap supporting beam, pile foundation top level thoroughly receives a supporting beam restriction to shifting, will greatly improve pile foundation the stress situation, has offset the extrusion thrust of platform earth lateral pressure to the abutment simultaneously, and the effect is showing.
Description
Technical field
The invention belongs to technical field of civil engineering, be specifically related to a kind of Thin Walled Abutment structure with supporting beam, can be applicable to Urban Bridge, ring road, public affairs (ferrum) road and bridge beam construction field.
Background technology
Thin Walled Abutment is buried abutment, arranges abutment body under platform cap, arranges cushion cap under abutment body, during for features as poor geologic condition, adopts pile foundation under cushion cap. For roadbed height >=4m after platform and the bridge being in unfavorable geology environment, it is generally adopted this Thin Walled Abutment, the arranging earth lateral pressure after platform is formed of abutment body is effectively resisted, bridge abutment structure stablized the effect playing main framing, and earth lateral pressure after superstructure power transmission and platform will be played good balanced action by pile foundation of bearing platform structure. So this abutment has other kind abutments, such as gravity water wheel, pillar abutment and ribbed slab abutment etc., the advantage that can not compare.
In engineering practice, owing to earth lateral pressure after platform can only be played certain balanced action by the pile foundation of bearing platform structure of Thin Walled Abutment, thus after platform depth of fill H excessive (H >=7m) or when earth lateral pressure increases suddenly situation after running into platform (the saturated soil pressure as caused because fill compaction degree is not up to standard increases suddenly), the horizontal thrust that abutment body, cushion cap are produced by earth lateral pressure will all be put up a resistance by pile foundation, under this situation, the single pile foundation under cushion cap will be in extremely disadvantageous force-bearing situation. Under extreme condition, pile foundation is by its connecting portion generation failure by shear with cushion cap.
Summary of the invention
For the above technical problem that existing Thin Walled Abutment exists, the present invention provides a kind of Thin Walled Abutment cushion cap to support boom device, this set cushion cap supports the bridge abutment structure form of boom device, owing to supporting the beam active balance to horizontal thrust, thoroughly withstand the earth lateral pressure effect to abutment body, cushion cap horizontal force after platform, and this simple in construction is effective and easy to implement.
This utility model is achieved through the following technical solutions:
A kind of Thin Walled Abutment structure with supporting beam includes platform cap, abutment body, ear wall, cushion cap, support beam and pile foundation, pile foundation arranges cushion cap, cushion cap is provided above abutment body, abutment body is provided with platform cap, ear wall is connected with platform cap, described support beam is arranged at bottom cushion cap leading flank, is laterally equally spaced along cushion cap, connects into a stress entirety with cushion cap.
The cross sectional shape of described support beam is rectangular.Sand bedding course is overlayed, in case supporting beam flexure under described support beam. Pre-buried described support beam stress reinforcing bar during bearing platform construction.
The present invention has following Advantageous Effects:
(1), after arranging cushion cap support beam, the abutment body amount of leaning forward diminishes, and will alleviate the platform extruding back to expansion joint effectively;
(2), after arranging cushion cap support beam, pile foundation of bearing platform is loosened, and will greatly improve pile foundation entirety force-bearing situation;
(3), after arranging cushion cap support beam, after platform, the horizontal thrust of abutment body and cushion cap effect will be subject to by earth lateral pressure by supporting joist support, greatly improve the stable of whole bridge abutment structure and force-bearing situation.
Accompanying drawing explanation
Fig. 1 is that this utility model Thin Walled Abutment cushion cap supports boom device structural representation.
Fig. 2 is that this utility model Thin Walled Abutment cushion cap supports boom device (orthogonal) floor map.
Fig. 3 is that this utility model Thin Walled Abutment cushion cap supports boom device (oblique) floor map.
Detailed description of the invention:
Below in conjunction with specific embodiment, this utility model is more specifically described in detail.
Embodiment
As shown in Figure 1, this utility model Thin Walled Abutment cushion cap supports boom device, and this abutment is collectively formed by platform cap (1), abutment body (2), ear wall (4), cushion cap (5), support beam (3) and pile foundation (6). Support beam (3) and be arranged at bottom cushion cap (5) leading flank, be laterally equally spaced along cushion cap (5), connect into a stress entirety with cushion cap (5).
The cross sectional shape of described support beam (3) is rectangular. Described support beam (3) is reinforced concrete structure.
Support beam (3) and bear the horizontal thrust that abutment body (2), cushion cap (5) are produced by whole or big portion earth lateral pressure, owing to supporting the existence of beam (3), pile foundation (6) will be made to be loosened, and abutment body (2) amount of leaning forward diminishes simultaneously.
Before cushion cap (5) construction, number and the position of this support beam (3) must be determined bottom cushion cap (5) leading flank, and the number supporting beam (3) need to be determined according to earth lateral pressure size after platform and this support beam (3) sectional dimension size, simultaneously to consolidation under this support beam (3), overlay sand bedding course, in case supporting beam flexure. During cushion cap (5) construction, according to steel bar stress at cushion cap (5) this support beam (3) pre-buried of support beam (3) number determined and position.
After completing cushion cap (5) reinforcing bar binding, can arranging support beam (3) other steel bar stresses according to result of calculation, colligation is formed after framework of steel reinforcement, can together with cushion cap (5) casting concrete.
For crossing over the bridge in river, for preventing current to cushion cap (5) and supporting washing away of beam (3), must to paving cemented rock at the bottom of riverbed.
Supporting beam (3) shown in Fig. 2 suitable in the route centrage bridge structure orthogonal with pier centrage, shown in Fig. 3, support beam (3) is suitable in the situation of oblique.
Embodiment of the present utility model is also not restricted to the described embodiments; other are any without departing from the change made under spirit of the present utility model and principle, modification, replacement, combination, simplification; all should be the substitute mode of equivalence, be included within protection domain of the present utility model.
Claims (4)
1. the Thin Walled Abutment structure with supporting beam, it is characterized in that including platform cap (1), abutment body (2), ear wall (4), cushion cap (5), supporting beam (3) and pile foundation (6), pile foundation (6) arranges cushion cap (5), cushion cap (5) is provided above abutment body (2), abutment body (2) is provided with platform cap (1), ear wall (4) is connected with platform cap (1), described support beam (3) is arranged at bottom cushion cap (5) leading flank, laterally it is equally spaced along cushion cap (5), connects into a stress entirety with cushion cap.
2. the Thin Walled Abutment structure with supporting beam according to claim 1, it is characterised in that: the cross sectional shape of described support beam is rectangular.
3. the Thin Walled Abutment structure with supporting beam according to claim 1, it is characterised in that: overlay sand bedding course under described support beam, in case supporting beam flexure.
4. the Thin Walled Abutment structure with supporting beam according to claim 1, it is characterised in that: pre-buried described support beam stress reinforcing bar during bearing platform construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521040842.6U CN205295920U (en) | 2015-12-15 | 2015-12-15 | An area supporting beam's thin wall abutment structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521040842.6U CN205295920U (en) | 2015-12-15 | 2015-12-15 | An area supporting beam's thin wall abutment structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205295920U true CN205295920U (en) | 2016-06-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521040842.6U Expired - Fee Related CN205295920U (en) | 2015-12-15 | 2015-12-15 | An area supporting beam's thin wall abutment structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205295920U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108330817A (en) * | 2018-03-16 | 2018-07-27 | 广东省冶金建筑设计研究院 | It is a kind of to hold the Abutment Reinforcement structure and its construction method for tilting a miniature clump of piles using end |
| CN112779853A (en) * | 2019-11-07 | 2021-05-11 | 中冶京诚工程技术有限公司 | Abutment and design and construction method thereof |
-
2015
- 2015-12-15 CN CN201521040842.6U patent/CN205295920U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108330817A (en) * | 2018-03-16 | 2018-07-27 | 广东省冶金建筑设计研究院 | It is a kind of to hold the Abutment Reinforcement structure and its construction method for tilting a miniature clump of piles using end |
| CN112779853A (en) * | 2019-11-07 | 2021-05-11 | 中冶京诚工程技术有限公司 | Abutment and design and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160608 Termination date: 20171215 |