CN217733768U - Device convenient to strand is worn simultaneously to multi-beam prestressing force steel strand wires - Google Patents
Device convenient to strand is worn simultaneously to multi-beam prestressing force steel strand wires Download PDFInfo
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- CN217733768U CN217733768U CN202221340797.6U CN202221340797U CN217733768U CN 217733768 U CN217733768 U CN 217733768U CN 202221340797 U CN202221340797 U CN 202221340797U CN 217733768 U CN217733768 U CN 217733768U
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- steel strand
- strand wires
- prestressing force
- restraint
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Abstract
The utility model relates to a construction technical field of bridge or cable specifically is a device convenient to multi-beam prestressing force steel strand wires are worn to restraint simultaneously, including conical body and tapping chuck section and the chuck nut of setting in conical body top, in conical body, set up a plurality of steel strand wires and wear line and a steel strand wires hole of converging along its axis direction, steel strand wires hole of gathering extends to tapping chuck section, has still screwed chuck nut on tapping chuck section. The utility model provides a device that restraint is worn simultaneously to multi-beam prestressing force steel strand wires, its simple structure, simple manufacture, can utilize many times, it has not only realized wearing to restraint the transformation that many prestressing force steel strand wires were worn to restraint simultaneously by single, has overcome among the prior art moreover and has easily caused prestressing force steel strand wires to appear twining, kinking, phenomenon different in size in the bellows when single wearing to restraint of prestressing force steel strand wires at every turn, and this can make steel strand wires atress uneven when follow-up prestressing force is pulled, steel strand wires appear easily and are pulled apart the phenomenon.
Description
Technical Field
The utility model relates to a construction technical field of bridge or cable specifically is a device convenient to restraint is worn simultaneously to multi-beam prestressing force steel strand wires.
Background
At present, when the transverse and longitudinal prestress installation is carried out on short-span or large-span bridges, the steel strand is penetrated through the corrugated pipe through a strand penetrating machine. The existing strand pulling machine can only pull a single prestressed steel strand, and is low in strand pulling efficiency, time-consuming and labor-consuming. In addition, when a plurality of prestressed strands penetrate into the corrugated pipe, the prestressed strands are prone to winding, kinking and different lengths in the corrugated pipe, so that the steel strands are stressed unevenly when the prestressed strands are tensioned in the follow-up prestressing process, and the steel strands are prone to being broken.
The phenomenon can be analyzed, and the fact that when a single bundle is threaded, the threading force and the threading speed of the threading machine are not easy to control when the threading machine encounters a long bundle of a continuous rigid frame swivel bridge, when the threading machine encounters a corrugated pipe joint, the end of a steel strand is easy to drill into a gap of the corrugated pipe joint, the pipeline is deformed to occupy the partial volume of a pore passage, and the subsequent threading quantity cannot be met. Along with the increase of continuous rigid frame beam segment section, the prestressing force steel strand also longer and longer, easily appear beating when using the machine of pulling through to restraint and stir the phenomenon and exist, cause and pull through the difficulty, increase the interior friction resistance between the steel strand, whole atress nature is poor, and the elongation value reduces, and the validity of prestressing force reduces, causes current threading machine unsatisfied construction quality's demand.
In order to cope with the above situation, there are also considerable patent documents which propose solutions for pulling through a plurality of steel strands at a time, however, these solutions are of low feasibility and operability in construction, and the field corrugated pipe is not sufficient to support the 15-25 prestressed steel strands which are pulled through at a time as described in the other related patents. On one hand, because the prestressed corrugated pipe is not linear except the top plate, the corrugated pipe wall is easily blocked and damaged by too many prestressed ribs which are penetrated once, and on the other hand, the weight of too many prestressed ribs which are pulled once is not supported by the power of the motor during bridge construction.
Disclosure of Invention
An object of the utility model is to overcome above-mentioned defect, provide a device convenient to restraint is worn simultaneously to multi-beam prestressing force steel strand wires.
In order to achieve the above object, the present invention is realized as follows:
the utility model provides a device convenient to multi-beam prestressing force steel strand wires are worn to restraint simultaneously, includes conical body and sets up tapping chuck section and chuck nut in conical body top, in conical body, sets up a plurality of steel strand wires threading control and a steel strand wires hole of converging along its axis direction, steel strand wires gather the hole and extend to tapping chuck section, has still screwed chuck nut on tapping chuck section.
The utility model provides a wear to restraint the device, when needing to carry out the prestressing force steel strand wires and wear to restraint in the bridge construction, operating personnel only need wear to restraint the device and prestress wire, pull wire link to each other can, easy operation has improved prestressing force and has worn to restraint work efficiency, reduction of erection time.
Compared with the traditional single prestressing force stranded wire pulling, the utility model provides a device that strand was worn simultaneously to multi-beam prestressing force stranded wire, its simple structure, simple manufacture, can utilize many times, it has not only realized wearing the transformation of restrainting to many prestressing force stranded wire and wearing the restraint simultaneously by single, overcome among the prior art at every turn prestressing force stranded wire single when wearing to restraint easily cause prestressing force stranded wire to appear twining in the bellows, kink, phenomenon different in size, this can make the steel strand atress uneven when follow-up prestressing force is pulled, steel strand pulled phenomenon appears easily.
Drawings
Fig. 1 is a front view of the present device.
Fig. 2 is a side view of the device.
Fig. 3 is a top view of the present device.
Detailed Description
The invention is further illustrated by the following specific examples.
As shown in fig. 1-3, a device convenient for multiple prestressed steel strands to penetrate simultaneously comprises a conical body 1, and a tapping chuck section 2 and a chuck nut 3 which are arranged above the conical body 1, wherein a plurality of steel strand penetrating wires and a steel strand collecting hole are arranged in the conical body along the axis direction of the conical body, the steel strand collecting hole extends to the tapping chuck section, and the chuck nut is screwed on the tapping chuck section.
The use method of the device comprises the following steps:
step 1: and (4) penetrating a lead (a steel strand and other wire structures meeting certain strength) into the prestressed corrugated pipe. As part of the traction device, certain strength is required to ensure the quality and safety during traction.
And 2, step: one end of the lead-through wire is connected with a tapping chuck section at the front end of the device and is fastened by a chuck nut, so that the component and the lead wire are stably connected.
And step 3: the clamping piece at the rear end of the device is connected with the plurality of prestressed tendons. The method is characterized in that a plurality of steel strands are simultaneously threaded, the step is a core, and if the clamping piece cannot enable the component and the steel strands to be stably connected, the steel strands fall off and slide during traction, so that difficulty is brought to subsequent threading work.
And 4, step 4: and pulling the traction wire by using a motor, driving the device and the connected prestressed steel strand to penetrate into the corrugated pipe, and finishing the strand penetrating process. The process needs to be smooth and stable, and the traction number and the motor power are adjusted according to the number of the penetrated beams.
Compared with the traditional single prestressing force stranded wire pulling, the utility model provides a device that strand was worn simultaneously to multi-beam prestressing force stranded wire, its simple structure, simple manufacture, can utilize many times, it has not only realized wearing the transformation of restrainting to many prestressing force stranded wire and wearing the restraint simultaneously by single, overcome among the prior art at every turn prestressing force stranded wire single when wearing to restraint easily cause prestressing force stranded wire to appear twining in the bellows, kink, phenomenon different in size, this can make the steel strand atress uneven when follow-up prestressing force is pulled, steel strand pulled phenomenon appears easily.
Claims (1)
1. The utility model provides a device convenient to strand is worn simultaneously to multi-beam prestressing force steel strand, characterized by: including conical body and tapping chuck section and the chuck nut of setting in conical body top, in conical body, set up a plurality of steel strand wires and a steel strand wires hole of converging along its axis direction, the steel strand wires hole of gathering extends to tapping chuck section, has still screwed chuck nut on tapping chuck section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221340797.6U CN217733768U (en) | 2022-06-01 | 2022-06-01 | Device convenient to strand is worn simultaneously to multi-beam prestressing force steel strand wires |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221340797.6U CN217733768U (en) | 2022-06-01 | 2022-06-01 | Device convenient to strand is worn simultaneously to multi-beam prestressing force steel strand wires |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217733768U true CN217733768U (en) | 2022-11-04 |
Family
ID=83838376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221340797.6U Active CN217733768U (en) | 2022-06-01 | 2022-06-01 | Device convenient to strand is worn simultaneously to multi-beam prestressing force steel strand wires |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217733768U (en) |
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2022
- 2022-06-01 CN CN202221340797.6U patent/CN217733768U/en active Active
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