CN201433356Y - Hoop for long-span prestressed concrete bridge cantilever casting construction - Google Patents
Hoop for long-span prestressed concrete bridge cantilever casting construction Download PDFInfo
- Publication number
- CN201433356Y CN201433356Y CN2009200866600U CN200920086660U CN201433356Y CN 201433356 Y CN201433356 Y CN 201433356Y CN 2009200866600 U CN2009200866600 U CN 2009200866600U CN 200920086660 U CN200920086660 U CN 200920086660U CN 201433356 Y CN201433356 Y CN 201433356Y
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- steel plate
- anchor ear
- steel plates
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Abstract
The utility model relates to a hoop for long-span prestressed concrete bridge cantilever casting construction, which comprises two semicircular hoops. Each semicircular hoop comprises a main steel plate (1), connecting steel plates (2), stiffening steel plates (3), bolt nuts (4) and a corbel support platform (5), wherein the main steel plate is semicircular, the connecting steel plates are vertically welded and connected with the end part of the main steel plate in the tangential direction of a circle, the stiffening steel plates are vertically welded on the sides of the connecting steel plateand the main steel plate, steel plates are welded at the middle lower part of the main steel plates and taken as a corbel support platform, and the bolt nuts are used for passing through mounting holes on the connecting steel plates to tightly hoop the two semicircular hoops on a concrete column (6). The utility model can guarantee the construction task under the actions of all loads in the construction of the closing segments of bridge sidespans when a floor stand is incapable of being adopted under the limitation of the water depth of a bridge location, the seasonal water rise or the bearing strength of the ground and the like; and moreover, the utility model has the advantages of simple structure, low manufacturing cost, convenient construction, short construction period and the like.
Description
Technical field
The utility model relates to the interim stressing device that supports of bridge construction, relates to particularly that a kind of long-span bridge beam bridge pier is higher, headroom is higher, pier is in the water or anchor ear that the soft foundation bearing capacity is adopted when not enough.
Background technology
Along with the continuous development of China's economic construction, under the expediting the emergence of who manages storm, domestic increasing domestic demand, special investment energetically, the development that the construction of large bridge at present is certain to advance by leaps and bounds at speedway.Stride footpath prestressed concrete cantilever glider bridge greatly, beam section between continuous girder bridge, T type firm structure bridge end bay beam-ends and the abutment pier, because of the restriction of conditions such as being subjected to that bridge location water is deep, seasonality is risen or bearing capacity of foundation soil is not enough,, adopt anchor ear can well solve this difficult problem according to the construction technology needs.
Summary of the invention
The purpose of this utility model is: a kind of anchor ear simple in structure, easy for installation is provided, by anchor ear is installed on bridge pier, it has the supporting role of support when setting up liftoff or leaving water and facing, thus the construction task under all load actions can solve the construction that still guarantees the bridge end bay closure segment in the time of can't adopting floor stand the time.
The utility model to achieve these goals, its technical scheme that adopts is: form by two semicircle anchor ears, each semicircle anchor ear by main steel plate, connect steel plate, strengthen steel plate, bolt nut and bracket support platform and form.Wherein: main steel plate semicircular in shape shape, the end that connects the vertical circular tangential direction of steel plate and main steel plate is weldingly connected, and strengthens the side that steel plate is vertically welded in connection steel plate and main steel plate, at the middle and lower part of main steel plate welding steel as the bracket support platform; With the bolt nut assembly pass the installing hole that connects on the steel plate with two semicircle anchor ear lock rings on concrete column.
The utility model compared with prior art, its advantage mainly is:
1. simple in structure, manufacturing, easy for installation;
2. holding capacity is bigger;
3. can guarantee the restriction of condition such as deep at bridge location water, that seasonality is risen or bearing capacity of foundation soil is not enough, the construction plant is narrow, in the time of can't adopting the floor stand construction, all load actions when bearing the construction of bridge end bay closure segment.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
Fig. 4 is the drawing that connects steel plate 2 among Fig. 1.
Fig. 5 is a drawing of strengthening steel plate 3 among Fig. 1.
Fig. 6 is that the utility model uses schematic diagram.
Among the figure: 1. main steel plate; 2. connection steel plate; 3. reinforcement steel plate; 4. high-strength bolt nut; 5. bracket support platform; 6. concrete column; 7. concrete cap-beam.
The specific embodiment
The utility model is described in further detail below in conjunction with embodiment and accompanying drawing.
The working anchor ear of the large-span prestressed concrete bridge cantilever pouring that the utility model provides, its structure such as Fig. 1, Fig. 2, Fig. 3 and shown in Figure 6: this anchor ear is made up of two semicircle anchor ears, and each semicircle anchor ear is made up of main steel plate 1, connection steel plate 2, reinforcement steel plate 3, bolt nut 4 and bracket support platform 5.Wherein: main steel plate 1 semicircular in shape shape, the end that connects steel plate 2 vertical circular tangential directions and main steel plate 1 is weldingly connected, strengthen steel plate 3 and be vertically welded in the side that connects steel plate 2 and main steel plate 1, at the middle and lower part of main steel plate 1 welding steel as bracket support platform 5.With bolt nut assembly 4 pass the installing hole that connects on the steel plate 2 with two semicircle anchor ear lock rings on concrete column 6.
Described anchor ear, its internal diameter are 180～200cm.
Described main steel plate 1, its thickness are 8～10mm.
Described connection steel plate 2 (Fig. 4), its thickness are 18～20mm.
Described reinforcement steel plate 3 (Fig. 5) is " reaping hook " shape; Its thickness is 8～10mm.
Described bolt nut assembly 4 can adopt the bolt nut of Ф 32mm.
The working anchor ear bracket of the above-mentioned large-span prestressed concrete bridge cantilever pouring that the utility model provides, be installed on the pier column, construction task when the main bearing member when constructing as large-span prestressed concrete bridge cantilever pouring, this member can realize the construction of this bridge end bay closure segment under the primary load effect.
This anchor ear can carry out the test of skid resistance of examination assembly unit, reaction frame setting, the anchor ear of anchor ear, to guarantee result of use before using.This test method is as follows:
Be chosen in the row examination assembly unit and the pressure testing of the enterprising anchor ear of land column, the frictional resistance between check anchor ear and the column.Anchor ear is oppositely installed (above-below direction is reverse) and tried assembly unit on landbridge pier stud column, its underpart is near binder top (reducing the distance between binder and the anchor ear bracket platform), and spacing is 110cm between the two.Level is installed four No. 40 i iron combined systems on binder, is combined into reaction frame with binder.The 400t hydraulic jack is installed on the i iron combined system, slowly the primer fluid pressing system makes jack contact with anchor ear bracket support platform, check whether both locate smooth-going contact, utilize binder as reaction frame then, at the uniform velocity starting the jack pair anchor ear carries out vertical direction and up pushes up, the state that reaches 200t (4 times of safety factor) when jack checks that down anchor ear does not have distortion, non-loosening, do not produce sliding phenomenon along the post direction, proves that this anchor ear is safe and reliable.
Claims (7)
1. working anchor ear of large-span prestressed concrete bridge cantilever pouring, it is characterized in that forming by two semicircle anchor ears, each semicircle anchor ear is by main steel plate (1), connect steel plate (2), strengthen steel plate (3), bolt nut (4) and bracket support platform (5) are formed, wherein: main steel plate (1) semicircular in shape shape, the end that connects vertical circular tangential direction of steel plate (2) and main steel plate (1) is weldingly connected, strengthen steel plate (3) and be vertically welded in the side that connects steel plate (2) and main steel plate (1), at the middle and lower part welding steel of main steel plate (1) as bracket support platform (5); With bolt nut assembly (4) pass the installing hole that connects on the steel plate (2) with two semicircle anchor ear lock rings on concrete column (6).
2. anchor ear according to claim 1, the internal diameter that it is characterized in that this anchor ear is 180～200cm.
3. anchor ear according to claim 1, the thickness that it is characterized in that described main steel plate (1) is 8～10mm.
4. anchor ear according to claim 1, the thickness that it is characterized in that described connection steel plate (2) is 18～20mm.
5. anchor ear according to claim 1 is characterized in that described reinforcement steel plate (3) is " reaping hook " shape.
6. anchor ear according to claim 1 or 5, the thickness that it is characterized in that described reinforcement steel plate (3) is 8～0mm.
7. anchor ear according to claim 1 is characterized in that described bolt nut assembly (4) adopts the bolt nut of Φ 32mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200866600U CN201433356Y (en) | 2009-06-16 | 2009-06-16 | Hoop for long-span prestressed concrete bridge cantilever casting construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200866600U CN201433356Y (en) | 2009-06-16 | 2009-06-16 | Hoop for long-span prestressed concrete bridge cantilever casting construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201433356Y true CN201433356Y (en) | 2010-03-31 |
Family
ID=42052166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200866600U Expired - Fee Related CN201433356Y (en) | 2009-06-16 | 2009-06-16 | Hoop for long-span prestressed concrete bridge cantilever casting construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201433356Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635072A (en) * | 2012-04-20 | 2012-08-15 | 上海颖川加固工程技术有限公司 | Steel clamp hoop support system for bridge lift-up |
| CN110144819A (en) * | 2019-06-06 | 2019-08-20 | 西南交通大学 | A kind of safe running gear and application method for truss-type bridges manual inspection |
-
2009
- 2009-06-16 CN CN2009200866600U patent/CN201433356Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635072A (en) * | 2012-04-20 | 2012-08-15 | 上海颖川加固工程技术有限公司 | Steel clamp hoop support system for bridge lift-up |
| CN110144819A (en) * | 2019-06-06 | 2019-08-20 | 西南交通大学 | A kind of safe running gear and application method for truss-type bridges manual inspection |
| CN110144819B (en) * | 2019-06-06 | 2024-04-12 | 西南交通大学 | Safe walking system for manual inspection of truss bridge and use method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA FIRST METALLURGICAL CONSTRUCTION GROUP CORPO Free format text: FORMER NAME: CHINA FIRST METALLURGICAL CONSTRUCTION CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 430081 Wuhan Industrial Zone, Qingshan District, Hubei, No. 3 Patentee after: China First Metallurgical Group Co., Ltd. Address before: 430081 Wuhan Industrial Zone, Qingshan District, Hubei, No. 3 Patentee before: China First Metallurgical Construction Co., Ltd. |
|
| 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: 20100331 Termination date: 20170616 |