CN201460238U - Steering block - Google Patents
Steering block Download PDFInfo
- Publication number
- CN201460238U CN201460238U CN2009200778154U CN200920077815U CN201460238U CN 201460238 U CN201460238 U CN 201460238U CN 2009200778154 U CN2009200778154 U CN 2009200778154U CN 200920077815 U CN200920077815 U CN 200920077815U CN 201460238 U CN201460238 U CN 201460238U
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- steering block
- plate
- shaped plate
- column structure
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Abstract
The utility model relates to a steering block which comprises a U-shaped plate and a column body structure, wherein the column body structure is connected and fixed on a bottom plate of the U-shaped plate; both ends of the column body structure are longer than the bottom plate of the U-shaped plate; and the column body structure is provided with a baffle plate. The steering block also comprises an annular ring capable of sliding, and the annular ring close to the baffle plate is sleeved on the column body structure and. The utility model has simple structure, convenient connection and easy disassembly, and the annular ring added on the steering block can also greatly reduce the friction loss.
Description
Technical field
The utility model belongs to building field, relates to a kind of steering block.
Background technology
External prestressing is a kind of of post-tensioning unbounded prestress system, and utilize external prestressing strengthening reinforced concrete simple-supported beam advantage to have: 1. external tendon reinforcing technique equipment needed thereby is simple, human input is few, the construction period is short, economic benefit is obvious; 2. because the position of presstressed reinforcing steel outside beam, has been reduced the friction loss in the work progress and has changed presstressed reinforcing steel convenient and easy; 3. little to the original structure damage, can accomplish not influence headroom under the beam; 4. reinforce the maintenance of safe and reliable, presstressed reinforcing steel and check convenient.Be subjected to the factor of curved bearing capacity too many owing to influence the external prestressing beam, make that as the influence of reasons such as the reinforcement ratio of span-depth radio, presstressed reinforcing steel and the non-prestressing tendon of the form of structure of beam, cross section type, beam, power muscle arrangement form, quadratic effect accurately to determine its bearing capacity very difficult.Also have in addition the steering block place friction, slide to the influence of external prestressing muscle stress increment.
Existing steering block mostly is in new building and the high-strength concrete bridge construction, the low-strength concrete structure then not to be considered, as shown in Figure 2, the steering block structure of introducing in " post-tensioned concrete structure working drawing method for expressing and construction detail " that China Inst of Architectural Standard Design publishes, for actual engineering reference, do not make the steering block product and in actual engineering, use, and this steering block is prefabricated that it makes with mounting process loaded down with trivial details.
The utility model content
The purpose of this utility model is to provide a kind of steering block, and its making and mounting process are simple, and has good functional performance.
For reaching above purpose, the solution that the utility model adopted is:
A kind of steering block, it comprises U-shaped plate, column structure, and column structure is connected and fixed on the bottom plate of U-shaped plate, and the bottom plate of U-shaped plate is longer than at the column structure two ends, and is provided with baffle plate.
This U-shaped plate top biside plate is provided with the fixing little grooved of using.
This U-shaped plate thickness is greater than 14mm, highly by the application deck-molding 1/3.
The bottom plate 50mm of U-shaped plate is respectively stretched out at these column structure two ends.
This column structure is a cylinder.
This U-shaped plate, column structure adopt steel to make, and are welded.
It also comprises slidably annulus, is sheathed on the column structure near the baffle plate side.
When the utility model was constructed with the external prestressing strengthening existing building, steering block was flexible for installation, and easy construction is simple; The loss of can reducing friction of steering block local structure solves end low-strength concrete office and presses implacable difficulty; Because this steering block is prefabricated with steel, convenient disassembly is so can reuse.
Owing to adopted such scheme, the utlity model has following characteristics: steering block of the present utility model simple in structure, can mount and dismount easily, and stress performance is good, the scope of application is wide.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the structural representation of existing steering block.
Figure notation among Fig. 2: 11, saddle 12, baffle plate 13, external bundle 14, stiffener 15, horizontal ribbed 16, side plate 17, crab-bolt 18, beam
The specific embodiment
Below in conjunction with the accompanying drawing illustrated embodiment the utility model is further described.
Steering block of the present utility model comprises U-shaped steel plate 1, round steel 3, U-shaped steel plate 1 is welded by three block plates, its underpart is a block plate, weld together with round steel 3, the every end of round steel 3 length exposes U-shaped steel plate 1 general 50mm, the round steel 3 of U-shaped steel plate 1 bottom welding is to be used for presstressed reinforcing steel is play a part to turn to, and is the parts that steering block plays the role of a nucleus.Two blocks of little steel plates of round steel end welding, its cross section is slightly larger than the round steel cross section, as the baffle plate 4 of steel strand 7.U-shaped steel plate 1 is enclosed within beam bottom or end face 6, this steering block can be installed easily, width adjustment U-shaped plate size according to reinforcement is (general, the length of U-shaped steel plate both sides is generally 1/3 of deck-molding, thickness is generally greater than 14mm), opened a little grooved about the U-shaped steel plate on two block plates, be used for fixing being connected of U-shaped steel plate and beam, can connect with setscrew 5.A new meaning making grooved is exactly to install and fix being connected and dismantling all very convenient of steering block and beam; Steel strand 7 pass through from round steel 3 bottoms, play the effect that turns to, and 3 liang of end-stopping plates 4 of round steel mainly are to prevent that steel strand 7 from outwards ejecting, and plays the safety precaution effect.The advantage of this steering block is almost to be suitable for all beams in the building structure, be convenient to installation and removal, and manufacture craft is simple.The steering block size can be according to stretching force size, beam size grading design.
In order to reduce friction loss, set up annulus (figure does not show) on steering block, annulus is enclosed within on the round steel 3, near baffle plate, can slide, steel strand contact with round steel 3 in stretching process and slide, and between steel strand and the round steel 3 very big friction loss are just arranged like this, if annulus of between cover, like this in the steel strand drawing process, annulus is enclosed within on the round steel 3, and just produces rolling between the steel strand, has reduced friction greatly.
The above-mentioned description to embodiment is can understand and use the utility model for ease of those skilled in the art.The person skilled in the art obviously can easily make various modifications to these embodiment, and needn't pass through performing creative labour being applied in the General Principle of this explanation among other embodiment.Therefore, the utility model is not limited to the embodiment here, and those skilled in the art should be within protection domain of the present utility model for improvement and modification that the utility model is made according to announcement of the present utility model.
Claims (7)
1. steering block, it is characterized in that: it comprises U-shaped plate, column structure, and column structure is connected and fixed on the bottom plate of U-shaped plate, and the bottom plate of U-shaped plate is longer than at the column structure two ends, and is provided with baffle plate.
2. steering block as claimed in claim 1 is characterized in that: this U-shaped plate top biside plate is provided with the fixing little grooved of using.
3. steering block as claimed in claim 1 is characterized in that: this U-shaped plate thickness is greater than 14mm, highly by the application deck-molding 1/3.
4. steering block as claimed in claim 1 is characterized in that: the bottom plate 50mm of U-shaped plate is respectively stretched out at these column structure two ends.
5. steering block as claimed in claim 1 is characterized in that: this column structure is a cylinder.
6. steering block as claimed in claim 1 is characterized in that: this U-shaped plate, column structure adopt steel to make, and are welded.
7. as each described steering block of claim 1-6, it is characterized in that: it also comprises slidably annulus, is sheathed on the column structure near the baffle plate side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200778154U CN201460238U (en) | 2009-07-03 | 2009-07-03 | Steering block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200778154U CN201460238U (en) | 2009-07-03 | 2009-07-03 | Steering block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201460238U true CN201460238U (en) | 2010-05-12 |
Family
ID=42387591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200778154U Expired - Fee Related CN201460238U (en) | 2009-07-03 | 2009-07-03 | Steering block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201460238U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388408A (en) * | 2013-07-28 | 2013-11-13 | 桂林理工大学 | External pre-stressed tendon reinforcing steering block for building structure |
| CN114319928A (en) * | 2022-02-15 | 2022-04-12 | 上海市建筑科学研究院有限公司 | Existing concrete structure column pulling method based on external prestress reinforcement technology |
-
2009
- 2009-07-03 CN CN2009200778154U patent/CN201460238U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388408A (en) * | 2013-07-28 | 2013-11-13 | 桂林理工大学 | External pre-stressed tendon reinforcing steering block for building structure |
| CN103388408B (en) * | 2013-07-28 | 2016-01-13 | 桂林理工大学 | A kind of building structure external prestressing muscle reinforces steering block |
| CN114319928A (en) * | 2022-02-15 | 2022-04-12 | 上海市建筑科学研究院有限公司 | Existing concrete structure column pulling method based on external prestress reinforcement technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20120703 |