CN214656370U - Device for assisting anchor pressing at beam end of stay cable - Google Patents
Device for assisting anchor pressing at beam end of stay cable Download PDFInfo
- Publication number
- CN214656370U CN214656370U CN202120166706.0U CN202120166706U CN214656370U CN 214656370 U CN214656370 U CN 214656370U CN 202120166706 U CN202120166706 U CN 202120166706U CN 214656370 U CN214656370 U CN 214656370U
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- flat
- anchor
- stay cable
- suspension cable
- cable
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Abstract
The utility model discloses a device of anchor is pressed in suspension cable beam-ends assistance, the suspension cable lower extreme is located beam-ends anchor head department, and the suspension cable passes through the mobile crane and lifts by crane to one side, winding flat hoist and mount area on the suspension cable body, pressing the anchor hoist engine to pass through wire rope and pull the pulley group, the pulley group is connected through flat hoist and mount area and is transmitted to the suspension cable on in order to pass through flat hoist and mount area with wire rope's traction force. The utility model discloses a flat hoist and mount area of synthetic fiber is as the power component that passes between suspension cable and the pulley block when the anchor is pressed to the beam-ends, solves the easy not hard up safe risk and the stereoplasm lock clamp that slides and cause of traditional lock clamp and probably to the injury that suspension cable PE caused, simplifies the weight of handling tool, degree of safety when increasing the suspension cable installation.
Description
Technical Field
The utility model relates to a suspension cable beam-ends presses anchor construction field. More specifically, the utility model relates to a device of anchor is pressed in assistance of suspension cable beam-ends.
Background
With the development of national infrastructure, large-span bridges are continuously emerging, and cable-stayed bridges are increasingly applied to crossing rivers, lakes and seas and high mountain canyons as a structure with strong crossing capability. The installation of the stay cable is used as a great difficulty in the construction process of the cable-stayed bridge, the construction control difficulty is high, and the safety risk is high.
When a finished stay cable is processed by a manufacturer, the length of a cable body of the finished stay cable is the length of an unstressed cable, the distance between anchoring points on a bridge tower and a main beam on a construction site is the length of a stressed cable, and the design load of the stay cable is generally hundreds of tons, so that one stay cable with the unstressed length is forcibly installed to two anchoring ends, the load to be overcome is at least the design load (hundreds of tons) of the stay cable, and the method without measures has the advantages of great installation difficulty and high safety risk.
The traditional stay cable installation is that a tower end is installed firstly, and a stay cable is connected to the tower end as required, so that the working length of the stay cable is increased, and the load required by beam end installation is reduced; after the tower end is installed, the beam end enters the anchor and the stay cable is pulled to enter the beam end anchor head in a mode of a winch and a pulley block, the load of the pulley block is applied to the stay cable by a locking clamp with high rigidity, and the two semicircular locking clamps are fastened through bolts to generate extrusion force on PE outside the stay cable so as to resist tension force during compression of the anchor. The traditional construction method has the following problems: 1) because the stay cable PE is made of elastic materials, the bolt group is stressed unevenly after being twisted, the discreteness is large, and the bolt is easy to loosen after being stressed to cause the sliding of the lock clamp, so that potential safety hazards appear; 2) the traditional locking clamp is made of rigid materials, the rigidity is high, the stay cable PE is easily scratched in the stay cable anchor pressing process, and the durability of a cable body is influenced; 3) the traditional locking clamp is welded by steel materials, the longer the locking clamp length required by the longer stay cable is, the larger the weight is, the inconvenience in installation is brought, and the construction difficulty is increased; 4) the length required by the rigid locking clamp is increased along with the increase of traction force, and the stress of a plurality of locking clamps is not uniform together or the stress of the lengthened locking clamp is not uniform; 5) the required model of traditional split collet needs according to cable diameter adaptation, and each kind cable needs the split collet of independent design.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a device of anchor is pressed in suspension cable beam-ends assistance adopts the flat hoist and mount area of synthetic fiber to press the power component of biography between suspension cable and the pulley block when the anchor as the beam-ends, solves the easy not hard up injury that slides the safety risk and the stereoplasm collet that cause of leading to the fact of traditional collet and probably leads to the fact the suspension cable PE, simplifies the weight of handling tool, the degree of safety when increasing the suspension cable installation.
In order to realize according to these purposes of the utility model and other advantages, a device that oblique cable beam-ends was assisted and is pressed anchor is provided, oblique cable lower extreme are located beam-ends anchor head department, and the suspension cable passes through the mobile crane and lifts by crane, the flat hoist and mount area of winding on the suspension cable body presses the anchor hoist engine to pass through wire rope traction sheave group, the sheave group passes through flat hoist and mount area connection in order to transmit wire rope's traction force to the suspension cable on through flat hoist and mount area.
Preferably, the pulley group comprises a movable pulley block and a steering fixed pulley block, the steering fixed pulley block is fixedly arranged, the movable pulley block is connected with the flat hoisting belt, and the steel wire rope sequentially penetrates through the steering fixed pulley block and the movable pulley block.
Preferably, the flat hoisting belt is uniformly and crossly wound on the stay cable body from the middle part.
Preferably, the flat hoisting belt is wound in a flat and untwisted state.
Preferably, the two ends of said flat sling are connected to the tackle pulley by shackles.
Preferably, the truck crane also winds the stay cable by a flat hoisting belt to hoist the stay cable.
Preferably, a fixed rope is fixed on the stay cable body and is fixedly connected with the flat hoisting belt.
The utility model discloses at least, include following beneficial effect:
1. the utility model discloses with the help of the winding power of flat soft hoist and mount area to the suspension cable, the sliding force is resisted to the frictional force of production, and traction force is big more, and the winding power in hoist and mount area is big more, and frictional force is just also big more, has reduced gliding risk greatly, and the construction safety is high.
2. The utility model discloses a flat hoist and mount area material is soft construction, can not cause the damage to the outer protection PE of suspension cable, is favorable to structural durability.
3. The utility model discloses a flat hoist and mount area of synthetic fiber has the characteristics that toughness is high, weight is little, simple to operate.
4. The utility model discloses a suitable length can be selected according to the atress size in flat hoist and mount area, and the even transmission of power is to whole root hoist and mount area behind the bearing force, and the atress is comparatively even.
5. The utility model discloses use soft synthetic fiber hoist and mount area, applicable in the construction of the suspension cable of various diameters, repeatedly usable, economic environmental protection.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a structure enlarged view of the flat hoisting belt of the utility model.
Description of reference numerals:
1. the device comprises a stay cable, 2 parts of a hoisting belt, 3 parts of a movable pulley block, 4 parts of a beam end anchor head, 5 parts of a steering fixed pulley block, 6 parts of a compression anchor winch, 7 parts of a steel wire rope, 8 parts of a truck crane, 9 parts of a fixed rope.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1 and 2, the utility model provides a device of anchor is pressed in suspension cable beam-ends assistance, 1 lower extreme of suspension cable is located the 4 departments of beam-ends anchor head, and suspension cable 1 lifts by crane through truck crane 8, winding flat hoist and mount area 2 on the suspension cable 1 cable body of suspension cable presses anchor hoist engine 6 to pass through wire rope 7 and pulls the pulley system, the pulley system passes through flat hoist and mount area 2 to be connected in order to transmit wire rope 7's traction force to suspension cable 1 on through flat hoist and mount area 2.
In the technical scheme, the soft synthetic fiber flat hoisting belt 2 is used as a force transmission component between the stay cable 1 and the pulley set when the beam end is anchored, the flat hoisting belt 2 is uniformly wound on PE outside the stay cable 1, two end parts of the flat hoisting belt 2 are converged together and then connected with the pulley set, and the hoisting belt 2 is gradually tightened and transmits force to the stay cable 1 along with the tightening of the steel wire rope 7, so that the beam end is anchored.
In another technical scheme, the pulley group comprises a movable pulley block 3 and a steering fixed pulley block 5, the steering fixed pulley block 5 is fixedly arranged, the movable pulley block 3 is connected with the flat hoisting belt 2, and a steel wire rope 7 sequentially penetrates through the steering fixed pulley block 5 and the movable pulley block 3.
In another technical scheme, the flat hoisting belt 2 is uniformly and crossly wound on the cable body of the stay cable 1 from the middle part. The flat hoisting belt 2 is wound in a flat and untwisted state. The winding mode can furthest realize the protection of the outer cable body PE of the stay cable 1.
In another solution, the two ends of the flat sling 2 are connected to the tackle pulley by shackles. The flat hoisting belt 2 is wound downwards from the middle part to the lowest end, and is provided with two free end parts which are connected with the movable pulley block 3 through shackles and can also be connected with the movable pulley block 3 through a steel wire rope 7.
In another technical scheme, the truck crane 8 is wound on the stay cable 1 through a flat hoisting belt 2 to hoist the stay cable 1.
In another technical scheme, a fixed rope 9 is fixed on the stay cable 1 and is fixedly connected with the flat hoisting belt 2. The fixing rope 9 is used as a temporary fixing point of the hoisting belt 2 to prevent the hoisting belt 2 from sliding downwards along the stay cable 1 due to self weight when not stressed.
The utility model discloses a method of anchor is pressed in 1 beam-ends assistance of suspension cable is as follows:
firstly, selecting a synthetic fiber flat hoisting belt 2 with proper tonnage according to the magnitude of the traction load of the beam end of the stay cable 1;
secondly, a nylon rope, namely a fixing rope 9 is tied at the calculated position to serve as a temporary fixing point of the hoisting belt 2, so that the hoisting belt 2 is prevented from sliding downwards along the stay cable 1 due to self weight when not stressed;
thirdly, uniformly and crossly winding the hoisting belt 2 on the cable body of the stay cable 1, ensuring that the hoisting belt 2 is not turned over during winding, and pre-tightening properly, wherein attention needs to be paid to the beginning from the middle part of the hoisting belt 2 during cross winding;
fourthly, connecting the connection points of the two end parts of the hoisting belt 2 with the tackle pulley group by using shackles;
and fifthly, tightening the steel wire rope 7, pulling the anchorage device at the tensioning end of the stay cable 1 into the beam end anchoring point for anchoring, and finishing beam end pressing and anchoring of the stay cable 1.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (7)
1. The utility model provides a device of anchor is pressed in assistance of suspension cable beam-ends, its characterized in that, the suspension cable lower extreme is located beam-ends anchor head department, and the suspension cable passes through the truck crane and lifts by crane, winding flat hoist and mount area on the suspension cable body, pressing the anchor hoist engine to pass through wire rope and pull the tackle pulley group, the tackle pulley group is connected through flat hoist and mount area and is transmitted to the suspension cable on with wire rope's traction force through flat hoist and mount area.
2. The device for auxiliary anchor pressing of beam end of stay cable according to claim 1, wherein the pulley set comprises a movable pulley block and a fixed pulley block, the fixed pulley block is fixedly arranged, the movable pulley block is connected with the flat hoisting belt, and the steel cable sequentially passes through the fixed pulley block and the movable pulley block.
3. The device for assisting the anchor pressing of the beam end of the stay cable according to claim 1, wherein the flat sling is uniformly wound on the stay cable body in a crossing manner from the middle.
4. A device for assisting anchor pressing of a beam end of a stay cable according to claim 3, wherein the flat hoisting belt is wound in a flat and untwisted state.
5. A device for auxiliary anchor-pressing of a stay cable beam-end as claimed in claim 3, wherein both ends of the flat sling are connected to a tackle pulley by shackles.
6. A device for assisting anchor-pressing of beam-end of a stay cable according to claim 1, wherein said truck-crane also lifts the stay cable by winding a flat hoisting belt around the stay cable.
7. The device for assisting anchor pressing of a beam end of a stay cable according to claim 1, wherein a fixing rope is fixed to the stay cable body and fixedly connected to the flat sling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120166706.0U CN214656370U (en) | 2021-01-21 | 2021-01-21 | Device for assisting anchor pressing at beam end of stay cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120166706.0U CN214656370U (en) | 2021-01-21 | 2021-01-21 | Device for assisting anchor pressing at beam end of stay cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214656370U true CN214656370U (en) | 2021-11-09 |
Family
ID=78517859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120166706.0U Active CN214656370U (en) | 2021-01-21 | 2021-01-21 | Device for assisting anchor pressing at beam end of stay cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214656370U (en) |
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2021
- 2021-01-21 CN CN202120166706.0U patent/CN214656370U/en active Active
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