CN200992707Y - Screw type prestressing device - Google Patents
Screw type prestressing device Download PDFInfo
- Publication number
- CN200992707Y CN200992707Y CN 200620162479 CN200620162479U CN200992707Y CN 200992707 Y CN200992707 Y CN 200992707Y CN 200620162479 CN200620162479 CN 200620162479 CN 200620162479 U CN200620162479 U CN 200620162479U CN 200992707 Y CN200992707 Y CN 200992707Y
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- axial force
- screw rod
- support
- steel
- screw
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- Expired - Fee Related
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Abstract
The utility model relates to a steel support length adjusting levels and pre-adding axial force device used in the basic pit maintenance, in particular discloses a screw rod type pre-adding axial force device, which is installed on a steel support. The utility model is characterized in that: the device comprises a screw rod, left and right support seats separately fixed on both sides, the screw rod is provided with left and right rotation acme threads, both ends of the screw rod separately screw into the support seats. The utility model using the screw rod type pre-adding axial force device to replace the present steel pipe support end telescopic joint, not only can save the existing steel support telescopic joint, but also can replace the hydraulic pressure oil pump to pre-add axial force, which can complete the steel support extending, axial force pre-adding, locking one time, moreover can detect the steel support axial force variation at any moment with a torsion wrench according to the design axial force required, prevent the steel support pre-adding axial force losing, facilitate the re-adding axial force, guarantee the support function of the steel support system to the pit side.
Description
Technical field
The utility model relates to a kind of pit maintenance soil steel bearing length that is used for adjusts a wage scale and the brace pre axial force device, a kind of screw brace pre axial force device of steel supporting base end portion in safeguarding in particular for house, subway foundation pit.
Background technology
Support in the construction at the steel that the building field deep foundation ditch is safeguarded at present, brace pre axial force mostly adopts hydraulic jack to add flexible this mode of section header, after applying brace pre axial force with hydraulic jack, a hydraulic jack is arranged and support expansion coupling brace pre axial force replacement process, in this course, owing to operation is gone up reason, supported expansion coupling joint gap or fixedly iron Quasi and inclined-plane accuracy of manufacture engineering error etc., all can cause steel to support brace pre axial force loss.As in construction, can not in time finding, be added with a power, can cause that foundation pit deformation is excessive, even cause surrounding ground sedimentation, building to damage.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of steel that can prevent and supports the brace pre axial force loss, and can make things convenient for the screw brace pre axial force device that in time applies the steel axial force of the supports, add the deficiency that this steel support construction technology of flexible section header exists to overcome existing hydraulic jack by designing requirement.
The technical scheme of the utility model technical solution problem is as follows:
A kind of screw brace pre axial force device, it is installed in steel and supports, and it is characterized in that, comprises screw rod and is fixedly installed on the left and right sides supporting seat of both sides respectively, and described screw rod is provided with left and right sides winding stair shape screw thread, and the screw rod two ends are screwed in the supporting seat respectively.
A kind of screw brace pre axial force device, it is installed in steel and supports, it is characterized in that, comprise screw rod, nut, supporting seat and support, described supporting seat and support are fixedly installed on both sides respectively, described screw rod one end is fixedlyed connected with nut, and the other end is provided with trapezoidal thread and is screwed in the supporting seat on the screw rod, and described nut is resisted against on the support.
The adjusting length that the stroke of described screw rod and steel support adapts.
By above disclosed technical scheme as can be known, the utility model supports the termination expansion coupling by adopting screw brace pre axial force device to substitute present steel pipe, can not only save existing steel and support expansion coupling, and can work by replacement liquid pressure oil pump brace pre axial force, make that steel props up that support is stretched, brace pre axial force, locking once finish, and can be according to designing requirement axle power torque wrench, at any time detect the steel axial force of the supports and change, prevent that steel from supporting the brace pre axial force loss, conveniently be added with a power, guarantee that the steel support system is to hole wall supporting role.
Description of drawings
Fig. 1 is example structure schematic diagram of the utility model;
Fig. 2 is another example structure schematic diagram of the utility model;
Fig. 3 is the working state figure of the utility model when being connected with H shaped steel.
The specific embodiment
As shown in figures 1 and 3, the utility model screw brace pre axial force device, it is installed in steel and supports on 1, comprise screw rod 2 and be fixedly installed on the left and right sides supporting seat 301 and 302 of both sides respectively, one of them supporting seat 301 fixedly installs steel and supports 1 front end, enclose purlin on another supporting seat 302 and ground wall or the hollow tube pile or transition segment is connected, as shown in Figure 3, supporting seat links to each other by being connected the transition segment 6 that encloses purlin 5 front ends with ground wall 4, described screw rod 2 is provided with left and right sides winding stair shape screw thread, screw rod 2 two ends are screwed into respectively in supporting seat 301 and 302, and the stroke of screw rod supports with steel needs adjusting length consistent.During jacking, 2 reinforcings are supported steel to reach requirement and are designed maximum brace pre axial force to screw rod by crossing torque spanner, and the utility model screw brace pre axial force transposition can self-locking.
As shown in Figure 2, be another embodiment of the utility model, it comprises screw rod 7, nut 8, supporting seat 9 and support 10, described supporting seat 9 and support 10 are fixedly installed on both sides respectively, described screw rod 7 one ends are fixedlyed connected with nut 8, the other end is provided with trapezoidal thread and is screwed in the supporting seat 9 on the screw rod 8, and described nut 8 is resisted against on the support 10.During jacking, by 8 reinforcings are supported steel to reach requirement and designed maximum brace pre axial force to nut, this brace pre axial force device can self-locking.
The utility model screw brace pre axial force device using method: as shown in Figure 3, screw brace pre axial force device one end supporting seat 301 and steel are supported 1 to be connected, enclose purlin 5 on other end supporting seat 302 and ground wall 4 or the hollow tube pile or transition segment 6 is connected, screw brace pre axial force device can not be directly and the embedded part welding, steel support 1 is regulated by an end screw brace pre axial force device screw stroke bearing length and actual installation length is coincide, and carries out steel and supports installation.After steel support to be installed, require directly steel is supported the brace pre axial force application of force to put in place by being installed in screw brace pre axial force device that steel supports with torque spanner according to design axle power.
The axle power assay method of screw brace pre axial force device is as follows:
1), screw brace pre axial force device is installed to testboard, uses the spanner pretension;
2), with torque spanner to the reinforcing of screw brace pre axial force device, observe screw brace pre axial force assembly axis power by the load device;
3), screw brace pre axial force assembly axis power under each the torque effect of record torque spanner;
4), set up screw brace pre axial force assembly axis power table under the torque effect.
Claims (3)
1. screw brace pre axial force device, it is installed in steel and supports, and it is characterized in that, comprises screw rod and is fixedly installed on the left and right sides supporting seat of both sides respectively, and described screw rod is provided with left and right sides winding stair shape screw thread, and the screw rod two ends are screwed in the supporting seat respectively.
2. screw brace pre axial force device, it is installed in steel and supports, it is characterized in that, comprise screw rod, nut, supporting seat and support, described supporting seat and support are fixedly installed on both sides respectively, described screw rod one end is fixedlyed connected with nut, and the other end is provided with trapezoidal thread and is screwed in the supporting seat on the screw rod, and described nut is resisted against on the support.
3. screw brace pre axial force device according to claim 1 and 2 is characterized in that, the adjusting length that the stroke of described screw rod and steel support adapts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620162479 CN200992707Y (en) | 2006-12-30 | 2006-12-30 | Screw type prestressing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620162479 CN200992707Y (en) | 2006-12-30 | 2006-12-30 | Screw type prestressing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200992707Y true CN200992707Y (en) | 2007-12-19 |
Family
ID=38945784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620162479 Expired - Fee Related CN200992707Y (en) | 2006-12-30 | 2006-12-30 | Screw type prestressing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200992707Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102366A (en) * | 2011-01-17 | 2011-06-22 | 中建市政建设有限公司 | Adjustable steel support axial force pre-adding device and using method thereof |
| CN103437366A (en) * | 2013-08-19 | 2013-12-11 | 浙江博雷重型机床制造有限公司 | Prestress loading device connecting part |
| CN103452119B (en) * | 2013-08-19 | 2016-05-11 | 浙江博雷重型机床制造有限公司 | The prestressing force charger of pattern foundation pit supporting structure inner support system |
| CN108166537A (en) * | 2017-12-20 | 2018-06-15 | 上海建工集团股份有限公司 | A kind of mechanical regulation device of Brace in Deep Footing Groove axle power and its regulation and control method |
| CN109252682A (en) * | 2018-10-24 | 2019-01-22 | 浙江精工钢结构集团有限公司 | A kind of rope bearing structure hound installation method |
| CN109356168A (en) * | 2018-11-28 | 2019-02-19 | 苏州市轨道交通集团有限公司 | A kind of bracing members segmented head |
| CN109778875A (en) * | 2019-03-06 | 2019-05-21 | 戴向胜 | The combination Circular Steel Support structure of axle power command displacement |
| CN110424400A (en) * | 2019-07-02 | 2019-11-08 | 浙江工业大学 | A kind of guarantor's power device for shaped steel combination support |
| CN113944169A (en) * | 2021-11-01 | 2022-01-18 | 广西大学 | Inner support connecting device for deep foundation pit supporting system |
| CN116411578A (en) * | 2023-06-09 | 2023-07-11 | 山东三箭建设工程股份有限公司 | Prestressed support steel structure based on large-span foundation pit engineering |
-
2006
- 2006-12-30 CN CN 200620162479 patent/CN200992707Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102366A (en) * | 2011-01-17 | 2011-06-22 | 中建市政建设有限公司 | Adjustable steel support axial force pre-adding device and using method thereof |
| CN103437366A (en) * | 2013-08-19 | 2013-12-11 | 浙江博雷重型机床制造有限公司 | Prestress loading device connecting part |
| CN103452119B (en) * | 2013-08-19 | 2016-05-11 | 浙江博雷重型机床制造有限公司 | The prestressing force charger of pattern foundation pit supporting structure inner support system |
| CN103437366B (en) * | 2013-08-19 | 2016-06-08 | 浙江博雷重型机床制造有限公司 | The connection member of prestressing force charger |
| CN108166537B (en) * | 2017-12-20 | 2019-04-02 | 上海建工集团股份有限公司 | A kind of mechanical regulation device of Brace in Deep Footing Groove axle power and its regulation method |
| CN108166537A (en) * | 2017-12-20 | 2018-06-15 | 上海建工集团股份有限公司 | A kind of mechanical regulation device of Brace in Deep Footing Groove axle power and its regulation and control method |
| CN109252682A (en) * | 2018-10-24 | 2019-01-22 | 浙江精工钢结构集团有限公司 | A kind of rope bearing structure hound installation method |
| CN109356168A (en) * | 2018-11-28 | 2019-02-19 | 苏州市轨道交通集团有限公司 | A kind of bracing members segmented head |
| CN109778875A (en) * | 2019-03-06 | 2019-05-21 | 戴向胜 | The combination Circular Steel Support structure of axle power command displacement |
| CN110424400A (en) * | 2019-07-02 | 2019-11-08 | 浙江工业大学 | A kind of guarantor's power device for shaped steel combination support |
| CN113944169A (en) * | 2021-11-01 | 2022-01-18 | 广西大学 | Inner support connecting device for deep foundation pit supporting system |
| CN113944169B (en) * | 2021-11-01 | 2023-02-28 | 广西大学 | Inner support connecting device for deep foundation pit supporting system |
| CN116411578A (en) * | 2023-06-09 | 2023-07-11 | 山东三箭建设工程股份有限公司 | Prestressed support steel structure based on large-span foundation pit engineering |
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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: 20071219 Termination date: 20151230 |
|
| EXPY | Termination of patent right or utility model |