CN218462544U - Pretensioned polygonal prestressed steel beam bending and positioning device - Google Patents
Pretensioned polygonal prestressed steel beam bending and positioning device Download PDFInfo
- Publication number
- CN218462544U CN218462544U CN202222768256.XU CN202222768256U CN218462544U CN 218462544 U CN218462544 U CN 218462544U CN 202222768256 U CN202222768256 U CN 202222768256U CN 218462544 U CN218462544 U CN 218462544U
- Authority
- CN
- China
- Prior art keywords
- steering gear
- strength screw
- screw rod
- bending
- positioning device
- 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.)
- Active
Links
Images
Abstract
The utility model relates to the field of buildings, in particular to a pretensioned zigzag prestressed steel beam bending and positioning device, which comprises a steering gear, a high-strength screw rod and a nut; the steering gear is fixedly connected with the two high-strength screw rods; the high-strength screw rod penetrates through a through hole of the bottom die of the precast beam; each high-strength screw rod is in threaded connection with two nuts, and the nuts are respectively positioned on the upper side and the lower side of the bottom die of the precast beam; the effect of adjustable bending height of the bending fixing device is achieved.
Description
Technical Field
The utility model relates to a building field, in particular to positioner is bent to pretension method dogleg shape prestressing force steel beam.
Background
Prestressed concrete refers to a method for improving the performance of a reinforced concrete member by pre-stressing the reinforced concrete member in the process of prefabricating the concrete member in order to improve the crack resistance of the reinforced concrete member and prevent the reinforced concrete member from cracking prematurely. The method of making the tensioned reinforcement prior to the pouring of the concrete is known as the pretensioned method.
The pretensioned method is to stretch the prestressed tendon before pouring concrete, and to anchor the two ends of the stretched prestressed tendon (steel strand) temporarily on the pedestal or steel mould, and then to pour concrete.
The pre-tensioning method has two reinforcement distribution modes of linear reinforcement distribution and fold line reinforcement distribution, and the fold line reinforcement distribution is suitable for prefabricated parts with large span.
Wherein, the steel twisted rope is arranged in a broken line manner by arranging the ribs on the broken line; referring to fig. 1, the bent-up fixing device is a plate type and has a through hole formed therein, and the through hole of the plate type bent-up fixing device fixes a bending point of the steel strand. Because the height of the through hole of the plate type bending fixing device is fixed, the requirements of bending points with different heights cannot be met.
SUMMERY OF THE UTILITY MODEL
To foretell shortcoming among the prior art, the utility model provides a positioner is bent to pretension broken line shape prestressing force steel beam realizes the curved height-adjustable's that rises effect of bending fixing device.
In order to achieve the above object, the utility model adopts the following technical scheme:
a pre-tensioning method fold-line-shaped prestressed steel beam bending and positioning device comprises a steering gear, a high-strength screw rod and a nut;
the steering gear is fixedly connected with the two high-strength screw rods;
the high-strength screw rod penetrates through a through hole of the bottom die of the precast beam;
and each high-strength screw rod is in threaded connection with two nuts, and the nuts are respectively positioned on the upper side and the lower side of the bottom die of the precast beam.
Furthermore, the steering gear is cylindrical and is provided with two threaded holes along the radial direction of the steering gear, and the high-strength screw rod is in threaded connection with the threaded holes of the steering gear.
Furthermore, the periphery of the steering gear is sleeved with a rolling pipe in a penetrating mode, so that the friction force between the steel stranded rope and the steering gear is reduced when the steel stranded rope is tensioned.
The utility model has the advantages that:
the steering gear 1 is fixedly connected with the two high-strength screw rods 2, the high-strength screw rods 2 penetrate through holes of a bottom die 4 of the precast beam, the steering gear 1 is adjusted to the designed height, two nuts 3 of the same high-strength screw rod 2 are screwed, and the high-strength screw rod 2 and the bottom die 4 of the precast beam are fixedly connected through the two nuts 3; when in use, the steel twisted rope 5 passes through the lower side of the steering gear 1, and the steel twisted rope 5 can be bent; the effect of adjustable bending height of the bending fixing device is achieved.
Drawings
FIG. 1 is a view of a steel strand starting point;
FIG. 2 is a schematic structural diagram of the present application;
FIG. 3 is a top view of the diverter;
reference symbol comparison table:
the device comprises a steering gear 1, a high-strength screw rod 2, a nut 3, a precast beam bottom die 4 and a steel stranded rope 5.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
In order to make the content of the present invention more clearly understood, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the attached drawings in the embodiment of the present invention.
As shown in fig. 2 to 3, a pretensioned zigzag-shaped prestressed steel beam bending and positioning device comprises a steering gear 1, a high-strength screw rod 2 and a nut 3;
the steering gear 1 is fixedly connected with two high-strength screw rods 2; preferably, the steering gear 1 is cylindrical and is provided with two threaded holes along the radial direction thereof, and the high-strength screw rod 2 is in threaded connection with the threaded holes of the steering gear 1.
The high-strength screw rod 2 penetrates through a through hole of the precast beam bottom die 4;
each high-strength screw rod 2 is in threaded connection with two nuts 3, and the nuts 3 are respectively located on the upper side and the lower side of the precast beam bottom die 4.
The principle is as follows: the steering gear 1 is fixedly connected with the two high-strength screw rods 2, the high-strength screw rods 2 penetrate through holes of a bottom die 4 of the precast beam, the steering gear 1 is adjusted to the designed height, two nuts 3 of the same high-strength screw rod 2 are screwed, and the high-strength screw rod 2 and the bottom die 4 of the precast beam are fixedly connected by the two nuts 3; when in use, the steel stranded rope 5 passes through the lower side of the steering gear 1, and the steel stranded rope 5 can be bent; the effect of adjustable bending height of the bending fixing device is achieved.
Furthermore, a rolling pipe is sleeved on the periphery of the steering gear 1 in a penetrating manner, so that when the steel twisted rope 5 is tensioned, the friction force between the steel twisted rope 5 and the steering gear 1 is reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and all modifications, equivalents, improvements and the like that are made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. A pre-tensioning method fold-line-shaped prestressed steel beam bending and positioning device is characterized in that,
comprises a steering gear, a high-strength screw rod and a nut;
the steering gear is fixedly connected with the two high-strength screw rods;
the high-strength screw rod penetrates through a through hole of the bottom die of the precast beam;
and each high-strength screw rod is in threaded connection with two nuts, and the nuts are respectively positioned on the upper side and the lower side of the bottom die of the precast beam.
2. The pre-tensioned dogleg-shaped prestressed steel strand bending and positioning device as recited in claim 1,
the steering gear is cylindrical and is provided with two threaded holes along the radial direction of the steering gear, and the high-strength screw rod is in threaded connection with the threaded holes of the steering gear.
3. The pre-tensioned dogleg-shaped prestressed steel strand bend-raising and positioning apparatus as recited in claim 1,
the periphery of the steering gear is sleeved with the rolling pipe in a penetrating mode, so that when the steel twisted rope is tensioned, the friction force between the steel twisted rope and the steering gear is reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222768256.XU CN218462544U (en) | 2022-10-20 | 2022-10-20 | Pretensioned polygonal prestressed steel beam bending and positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222768256.XU CN218462544U (en) | 2022-10-20 | 2022-10-20 | Pretensioned polygonal prestressed steel beam bending and positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218462544U true CN218462544U (en) | 2023-02-10 |
Family
ID=85148239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222768256.XU Active CN218462544U (en) | 2022-10-20 | 2022-10-20 | Pretensioned polygonal prestressed steel beam bending and positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218462544U (en) |
-
2022
- 2022-10-20 CN CN202222768256.XU patent/CN218462544U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110748065A (en) | Assembling tool type truss composite slab and construction method thereof | |
| CN218462544U (en) | Pretensioned polygonal prestressed steel beam bending and positioning device | |
| CN1272512C (en) | Mixed-tensioning process made pre-tensioning mansard prestressed concrete member and construction method thereof | |
| CN102363957A (en) | Post-tensioned pre-stressed compound uplift pile | |
| CN103061452B (en) | Anti-seismic prestressed precast beam | |
| CN214006197U (en) | Assembling tool type truss and assembling truss laminated slab with end inclined ribs | |
| CN205012238U (en) | A letter T roof beam anchor based on violently open prestressing force | |
| CN1380171A (en) | Large-aperture prestressed concrete pipe and its preparation process | |
| CN104563103A (en) | Composite-reinforcement partially-prestressed concrete solid square pile and production method thereof | |
| CN113927728B (en) | Novel prestressed concrete mixed reinforcement pipe pile manufacturing device and method | |
| CN109333810A (en) | A kind of pre-tensioning system broken line steel bar pull-down device for bending up and its operating method | |
| CN203284774U (en) | Rigid pile for processing composite foundation | |
| CN211899177U (en) | Support-free laminated slab comprising truss and truss machining device | |
| CN203452066U (en) | Non-prestressed high-strength centrifugal concrete square pile | |
| CN208934463U (en) | A kind of concreting profiled template support component | |
| CN111088855A (en) | Vertical steel bar connecting device for prefabricated wall panel | |
| CN220184399U (en) | Reinforced prefabricated bottom plate component and floor system | |
| CN220100395U (en) | Pretensioned prefabricated prestressed steel bar concrete bent column with end anchor plates | |
| CN220058562U (en) | Anchor device applied to rock soil layer | |
| CN208518206U (en) | Two bors d's oeuveres prestressing force overlaps girder | |
| CN219637972U (en) | Anti-floating structure of bored concrete pile steel reinforcement cage | |
| CN203905293U (en) | Overhead weighbridge prestress prefabricate beam | |
| CN110805271B (en) | Prestressed type template system for laminated floor slab construction | |
| CN215291547U (en) | Constructional column embedded steel bar spacing control device | |
| CN210475351U (en) | Prefabricated general reinforcement explorator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |