CN202559771U - High-altitude rope replacing device of pre-stress beam string structure - Google Patents
High-altitude rope replacing device of pre-stress beam string structure Download PDFInfo
- Publication number
- CN202559771U CN202559771U CN 201220199173 CN201220199173U CN202559771U CN 202559771 U CN202559771 U CN 202559771U CN 201220199173 CN201220199173 CN 201220199173 CN 201220199173 U CN201220199173 U CN 201220199173U CN 202559771 U CN202559771 U CN 202559771U
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- rope
- rope replacing
- altitude
- string structure
- beam string
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Abstract
The utility model discloses a high-altitude rope replacing device of a pre-stress beam string structure. The high-altitude rope replacing device comprises a plurality of rope replacing rest piers, wherein each rope replacing rest pier is an eight-three-style railway light type military bridge pier; a jack and a double-I-steel support are arranged between the top of each rope replacing rest pier and a beam string structure; a tensile steel wire rope for limiting the deformation of the beam string structure and a large hand hoist are arranged among a plurality of the rope replacing rest piers; the steel wire rope is tensioned through tensioning hoops which are fixed at the two ends of the beam string structure; a middle column deviation-preventing counter weight is arranged in the middle of the steel wire rope; and the distribution of the plurality of rope replacing rest piers is determined by a tension rope force obtained by calculation and actual monitoring. According to the high-altitude rope replacing device disclosed by the utility model, rope replacing can be realized under the condition of keeping an upper load immobile; the construction efficiency is obviously improved, the construction period is shortened and the stopping time of a motor car is reduced to the greatest extent; and meanwhile, an upper structure is kept and the rope replacing cost is reduced to the greater extent.
Description
Technical field
The utility model relates to a kind of large-span prestressed tension string beam structure high-altitude and changes the rope device, is applicable to the large-span prestressed steel work maintenance works of railway station.
Background technology
Newly-built along with the Large-scale Railway station, the room intercolumniation is increasing, requires its beam span also increasing, and the construction technology that large span H shaped steel plane combining structure is opened the string beam is employed more and more.H shaped steel plane combining structure is opened the construction technology of string beam and is made up of H shaped steel solid web girder, strut and cable wire; The three interconnects, and solid web girder is connected with cable wire through strut, and the anchoring of cable wire endpoint node is fixed on the steel plate through ground tackle; Be supported on the solid web girder through stiffener; The cable wire tightness can be regulated, and through regulating the cable wire tightness, solid web girder is applied prestressing force (as shown in Figure 1).The design life of prestressed cable is 50 years, and not in place because of the maintenance between the operating period according to statistics, the actual life of prestressed cable is on average less than 30 years.Particularly to change the rope technology very immature in the high-altitude for the construction technology that present domestic large span H shaped steel plane combining structure is opened the string beam, the maintenance and the replacing problem of the prestressed cable that therefore needs to be resolved hurrily.
Summary of the invention
The utility model technical problem to be solved is the deficiency to prior art, and a kind of replacing apparatus and method of prestressed cable are provided.
For solving this technical problem; The utility model provides a kind of prestressing force beam string structure high-altitude to change the rope device; Comprise a plurality of rope buttresses that change, the said rope buttress that changes is the military bridge piers of eight or three formula Railway Light, jack is set between a top of changing the rope buttress and a string beam supports with two i iron.
Said a plurality of change be provided with between the rope buttress that restriction opens the distortion of string beam socket wire rope and big hand cucurbit, this wire rope is through being fixed on the tension anchor ear tension at a string beam two ends.
Be provided with the anti-inclined to one side counterweight of center pillar at the middle part of wire rope.
Said a plurality of distribution of changing the rope buttress is confirmed through the stretching rope power of calculating and actual monitoring obtains.
Beneficial effect: the utility model can keep at upper load realizes changing rope under the motionless condition; Significantly improve efficiency of construction, shortened the construction period, reduced motor-car idle time to greatest extent; The reservation of superstructure has simultaneously reduced on largely and has changed Suo Chengben.
Description of drawings
Fig. 1 is the tension string beam structure sketch map;
Fig. 2 be the utility model open at the bottom of the string beam and support and connection sketch map between buttress;
Fig. 3 is that the deformation monitoring point of the utility model is arranged sketch map.
Among the figure: 1 string beam, 2 struts, 3 cable wires, 4 change rope buttress, 5 jack, 6 pairs of i iron.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done specific descriptions.
Shown in Figure 2 be the utility model open at the bottom of the string beam and support and connection sketch map between buttress.
The utility model comprises a plurality of rope buttresses 4 that change, and jack 5 is set between a top of changing rope buttress 4 and a string beam 1 supports with two i iron 6.
For the string beam 1 of opening that prevents to change in the rope process is out of shape; A plurality of change be provided with between the rope buttress 4 that restriction opens 1 distortion of string beam socket wire rope and big hand cucurbit; Said wire rope also is provided with the anti-inclined to one side counterweight of center pillar through being fixed on the tension anchor ear tension at string beam 1 two ends at the middle part of wire rope.
The utility model adopts the military bridge pier of eight or three formula Railway Light as changing rope buttress 4, has improved on largely and has changed rope efficient, has shortened and has changed the rope construction period; The military bridge pier of eight or three formula Railway Light can recycle, and has practiced thrift and has changed Suo Chengben; Simultaneously, because of the intensity of the military bridge pier of eight or three formula Railway Light is high, rigidity is big, reduced to greatest extent when changing rope the adverse effect of existing structure, it is controlled to change the rope work safety.
A plurality of distributions of changing rope buttress 4 combine through analogue simulation analysis and construction monitoring; Under the situation of removal superstructure load not; Under off-design behaviour, carry out string beam 1 high-altitude definite (as shown in Figure 3) of stretching rope power value when changing rope through calculating to obtain with actual monitoring; Wherein analogue simulation calculates the optimization scheme that construction technology can be provided; Construction monitoring can provide accurate construction control target: I shown in Figure 3, II, III, IV, V are five monitoring points, and both can verify each other simultaneously, and this has further guaranteed the q&r of construction.
The utility model can keep under the motionless condition at upper load to be realized changing rope, has significantly improved efficiency of construction, has shortened the construction period, has reduced motor-car idle time to greatest extent, and the reservation of superstructure has simultaneously reduced on largely and changed Suo Chengben.
The above-mentioned embodiment of the utility model just illustrates, and is not only, all in the utility model scope or the change that is equal in the scope of the utility model all surrounded by the utility model.
Claims (2)
1. the rope device is changed in a prestressing force beam string structure high-altitude; Comprise a plurality of rope buttresses (4) that change; It is characterized in that: the said rope buttress (4) that changes is the military bridge piers of eight or three formula Railway Light; Jack (5) and two i iron (6) support are set between a top of changing rope buttress (4) and a string beam (1); Said a plurality of change be provided with between the rope buttress (4) that restriction opens string beam (1) distortion socket wire rope and big hand cucurbit, this wire rope is provided with the anti-inclined to one side counterweight of center pillar through being fixed on the tension anchor ear tension at string beam (a 1) two ends at the middle part of wire rope.
2. the rope device is changed in prestressing force beam string structure according to claim 1 high-altitude, it is characterized in that: said a plurality of distributions of changing rope buttress (4) are confirmed through the stretching rope power value of calculating and actual monitoring obtains.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220199173 CN202559771U (en) | 2012-05-07 | 2012-05-07 | High-altitude rope replacing device of pre-stress beam string structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220199173 CN202559771U (en) | 2012-05-07 | 2012-05-07 | High-altitude rope replacing device of pre-stress beam string structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202559771U true CN202559771U (en) | 2012-11-28 |
Family
ID=47209438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220199173 Expired - Fee Related CN202559771U (en) | 2012-05-07 | 2012-05-07 | High-altitude rope replacing device of pre-stress beam string structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202559771U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313604A (en) * | 2017-07-12 | 2017-11-03 | 天津大学 | A kind of drag-line node reinforced for space structure string |
| CN108824839A (en) * | 2018-08-29 | 2018-11-16 | 国网江苏省电力有限公司扬州供电分公司 | A kind of drag-line ruggedized construction of existing C-type steel purlin |
| CN113216675A (en) * | 2021-03-24 | 2021-08-06 | 陕西省建筑科学研究院有限公司 | Method for shifting support rod and cable clamp in cable structure |
-
2012
- 2012-05-07 CN CN 201220199173 patent/CN202559771U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313604A (en) * | 2017-07-12 | 2017-11-03 | 天津大学 | A kind of drag-line node reinforced for space structure string |
| CN108824839A (en) * | 2018-08-29 | 2018-11-16 | 国网江苏省电力有限公司扬州供电分公司 | A kind of drag-line ruggedized construction of existing C-type steel purlin |
| CN108824839B (en) * | 2018-08-29 | 2023-11-24 | 国网江苏省电力有限公司扬州供电分公司 | Cable reinforcement structure of existing C-shaped steel purline |
| CN113216675A (en) * | 2021-03-24 | 2021-08-06 | 陕西省建筑科学研究院有限公司 | Method for shifting support rod and cable clamp in cable structure |
| CN113216675B (en) * | 2021-03-24 | 2023-02-10 | 陕西省建筑科学研究院有限公司 | Method for shifting stay bar and cable clamp in cable structure |
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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: 20121128 Termination date: 20150507 |
|
| EXPY | Termination of patent right or utility model |