CN204982680U - Posttension precast prestressed concrete box beam installs deviator controlling means in advance - Google Patents
Posttension precast prestressed concrete box beam installs deviator controlling means in advance Download PDFInfo
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- CN204982680U CN204982680U CN201520710472.6U CN201520710472U CN204982680U CN 204982680 U CN204982680 U CN 204982680U CN 201520710472 U CN201520710472 U CN 201520710472U CN 204982680 U CN204982680 U CN 204982680U
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- deviator
- prestressed concrete
- finish rolling
- concrete box
- advance
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Abstract
The utility model discloses a posttension precast prestressed concrete box beam installs deviator controlling means in advance, the device be including installing the benzvalene form support on the pier, the below of benzvalene form support is provided with the supporting pinner, and the device still includes a plurality of finish rolling spirals, the upper portion at the pier is installed according to the value of the deviator in advance of precomputation to the finish rolling spiral, supporting pinner, benzvalene form support, posttension precast prestressed concrete box beam install in proper order on the finish rolling spiral. The utility model discloses can the accuracy set up deviator in advance to control precast box girder installs stretch -draw to the projected life in from prefabricate to, and the shrink of concrete, creep and elastic deformation measures.
Description
Technical field
The utility model belongs to precast prestressed concrete pile equipment technical field, is specifically related to a kind of post tensioned prestressed concrete box girders and installs pre-deviator control device.
Background technology
Pre-deviator refers to that prefabricated case beam is from prefabricated to being installed to stretch-draw in projected life, the contraction of concrete, creep, elastic deformation.Because shrinkage and creep, prestressed stretch-draw also have the impact of temperature load, Main Pier of Bridges can produce vertical equity displacement, thus produces additional internal force in beam body, and this internal force causes adverse influence to beam body.Therefore, in the work progress of reality, a pre-deviator of bearing should be set at freely movable bearing place, pier top and balance.Be all install bridge pad in the pre-position partially of pier at present, then be connected firmly by upper and lower for bridge pad seat board by bolt, so pre-deviator arranges not accurate enough.
Utility model content
The purpose of this utility model is to provide a kind of post tensioned prestressed concrete box girders to install pre-deviator device, and it can accurate setting pred icted deflection amount, to control prefabricated case beam from prefabricated to being installed to stretch-draw in projected life, the contraction of concrete, to creep and elastic deformation amount.
The utility model solves the technical scheme that its technical problem adopts:
There is provided a kind of post tensioned prestressed concrete box girders that pre-deviator control device is installed, this device comprises the pot bearing be arranged on pier, the below of described pot bearing is provided with bearing pad stone, this device also comprises multiple finish rolling deformed bar, described finish rolling deformed bar is arranged on the top of pier according to the value of precalculated pre-deviator, and described bearing pad stone, pot bearing, post tensioned prestressed concrete box girders are arranged on finish rolling deformed bar successively.
By technique scheme, the rubber tile that described pot bearing comprises top board, base plate and is arranged between top board and base plate.
The beneficial effect that the utility model produces is: this device is according to the pre-buried finish rolling deformed bar of pre-deviator, the pre-deviator of pot bearing can be accurately set, to control post tensioned prestressed concrete box girders from prefabricated to being installed to stretch-draw in projected life, the contraction of concrete, creep, the pre-deviator deviate of elastic deformation, this device easy construction, workable, applied widely.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the top view of Fig. 1.
In figure: 7-post tensioned prestressed concrete box girders, 8-pier, 9-bearing pad stone, 10-base plate, 11-top board, 12-rubber tile, 13-base plate steel plate, 14-top board steel plate, 15-finish rolling deformed bar, the pre-laminated steel of 16-, 17-nut.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1 and Figure 2, a kind of post tensioned prestressed concrete box girders installs pre-deviator control device, this device comprises the pot bearing be arranged on pier 8, the below of pot bearing is provided with bearing pad stone 9, this device also comprises multiple finish rolling deformed bar 15, finish rolling deformed bar 15 is arranged on the top of pier 8 according to the value of precalculated pre-deviator, and bearing pad stone 9, pot bearing, post tensioned prestressed concrete box girders 7 are arranged on finish rolling deformed bar 15 successively.
In preferred embodiment of the present utility model, as shown in Figure 1, the pot bearing rubber tile 12 that comprises top board 11, base plate 10 and be arranged between top board 11 and base plate 10.
As shown in Figure 1 and Figure 2, adopt the utility model to carry out pre-deviator when arranging, comprise the following steps:
A () arranges bearing pad stone 9 below pot bearing, require bearing pad stone 9 surfacing;
B () marks center line at pot bearing design attitude place, also mark center line on pot bearing top, base plate simultaneously;
(c) according to the pre-deviator of every bridge beam, pre-buried 4 finish rolling deformed bars 15 on pier 8;
D () post tensioned prestressed concrete box girders 7 stays preformed hole according to pre-deviator by the position of pre-buried finish rolling deformed bar 15, install one piece of pre-laminated steel 16 again on case beam top, pre-laminated steel 16 is fixedly mounted on finish rolling deformed bar 15 by nut 17;
E pot bearing is moved on to pre-off normal and puts by (), check pot bearing position of center line at hanging wire, top board 11, base plate 10 is connected firmly, is provided with rubber tile 12 between top board and base plate with finish rolling deformed bar 15;
F () carries out stretch-draw to post tensioned prestressed concrete box girders;
G () is welded to connect, bridge top and the bottom are configured in construction, answers the pre-buried base plate steel plate 13 slightly larger than this series of standoffs top, base plate and top board steel plate 14, and have reliable anchor measure in pot bearing top and the bottom; Bearing rear symmetrical interrupted method welding in place.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to the utility model claims.
Claims (2)
1. a post tensioned prestressed concrete box girders installs pre-deviator control device, this device comprises the pot bearing be arranged on pier, the below of described pot bearing is provided with bearing pad stone, it is characterized in that, this device also comprises multiple finish rolling deformed bar, described finish rolling deformed bar is arranged on the top of pier according to the value of precalculated pre-deviator, and described bearing pad stone, pot bearing, post tensioned prestressed concrete box girders are arranged on finish rolling deformed bar successively.
2. device according to claim 1, is characterized in that, the rubber tile that described pot bearing comprises top board, base plate and is arranged between top board and base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520710472.6U CN204982680U (en) | 2015-09-15 | 2015-09-15 | Posttension precast prestressed concrete box beam installs deviator controlling means in advance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520710472.6U CN204982680U (en) | 2015-09-15 | 2015-09-15 | Posttension precast prestressed concrete box beam installs deviator controlling means in advance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204982680U true CN204982680U (en) | 2016-01-20 |
Family
ID=55117062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520710472.6U Expired - Fee Related CN204982680U (en) | 2015-09-15 | 2015-09-15 | Posttension precast prestressed concrete box beam installs deviator controlling means in advance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204982680U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884268A (en) * | 2017-10-11 | 2018-04-06 | 太原理工大学 | Consider the Creep of Concrete-filled Steel Tube test device of steel pipe primary stress |
-
2015
- 2015-09-15 CN CN201520710472.6U patent/CN204982680U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884268A (en) * | 2017-10-11 | 2018-04-06 | 太原理工大学 | Consider the Creep of Concrete-filled Steel Tube test device of steel pipe primary stress |
| CN107884268B (en) * | 2017-10-11 | 2019-10-11 | 太原理工大学 | Consider the Creep of Concrete-filled Steel Tube test device of steel pipe primary stress |
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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 |
Granted publication date: 20160120 Termination date: 20180915 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |