CN209854572U - Section beam prestressed pipeline positioning device adopting stub matching method - Google Patents
Section beam prestressed pipeline positioning device adopting stub matching method Download PDFInfo
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- CN209854572U CN209854572U CN201920540008.5U CN201920540008U CN209854572U CN 209854572 U CN209854572 U CN 209854572U CN 201920540008 U CN201920540008 U CN 201920540008U CN 209854572 U CN209854572 U CN 209854572U
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Abstract
The utility model relates to an accurate location technical field of prestressing force pipeline in stub matching method segment girder prefabrication, concretely relates to stub matching method segment girder prestressing force pipeline positioner. The positioning device comprises a one-way positioning plate and a one-way positioning plug which are arranged at the end part of the prestressed pipeline and used for forming holes, a two-way positioning ring which is used for the direct connection of the prestressed pipelines of the front beam section and the rear beam section, and a rubber inflation rod which is arranged in the prestressed pipeline; the unidirectional positioning plate is matched with the unidirectional positioning plug and connected into a whole; the rubber inflation rod is hollow and has a shape matched with the prestressed pipeline after being inflated. The device is used for fixing the positions of two ends of the prestressed pipeline and maintaining the shape and the line shape of the prestressed pipeline, so that the pipeline position is accurate and smooth, and the forward connection with the next section beam pipeline is ensured.
Description
Technical Field
The utility model relates to an accurate location technical field of prestressing force pipeline in stub matching method segment girder prefabrication, concretely relates to stub matching method segment girder prestressing force pipeline positioner.
Background
In recent years, prestressed concrete structures have the characteristics of strong crack resistance, high rigidity, high strength, good shear resistance and fatigue resistance, can effectively reduce the dead weight of the structures, prevent concrete cracking, reduce deflection and the like, and are widely applied.
As the aorta of the series section beams, the positioning and the line shape of the prestressed pipeline are critical to the quality safety of the bridge, and the hidden danger left by the construction is fatal to the beam body. Whether the prestressed pipeline can be accurately positioned or not relates to whether the construction and later operation of the whole girder body are normal or not, so that the accurate positioning of the prestress has very important significance on the overall safety and stability of the girder body in the construction of the prestressed bridge.
However, at present, with the continuous improvement of the domestic requirements for bridge construction quality, the problems of inaccurate prestress positioning are increasingly prominent, such as common quality problems of slab staggering at the end part of a prestress pipeline, linear irregularity of the pipeline, slurry inlet blockage of the pipeline and the like. Therefore, a technical solution is needed to achieve the purpose of improving the accuracy of positioning of the conventional prestressed pipe.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the above problem, present prestressing force pipeline location is inaccurate promptly, and linear irregularity, easy stifled quality problems such as pipe provide a stub matching method segment roof beam prestressing force pipeline positioner.
In order to achieve the purpose of the utility model, the utility model adopts the following technical scheme:
a positioning device for a section beam prestressed pipeline by a stub matching method comprises a one-way positioning plate and a one-way positioning plug which are arranged at the end part of the prestressed pipeline and are used for forming a hole, a two-way positioning ring for the direct connection of front and rear beam section prestressed pipelines, and a rubber inflation rod arranged in the prestressed pipeline; the unidirectional positioning plate is matched with the unidirectional positioning plug and connected into a whole; the rubber inflation rod is hollow and has a shape matched with the prestressed pipeline after being inflated.
As a further preferred scheme, the lower part of the one-way positioning plate is cylindrical, and the upper part of the one-way positioning plate is in a circular truncated cone shape.
As a further preferred scheme, the cylindrical thickness of the bottom of the one-way positioning plate is 1.5cm, and the diameter is 1cm larger than the outer diameter of the prestressed pipeline; the thickness of the top circular truncated cone is 1cm, the diameter of the bottom surface is the same as that of the cylinder, and the diameter of the top surface is 2-3 mm larger than the outer diameter of the prestressed pipeline.
As a further preferable scheme, the unidirectional positioning plug is in a shape of a circular truncated cone.
As a further preferred scheme, the height of the unidirectional positioning plug is 10cm, the diameter of the bottom surface of the unidirectional positioning plug is 2-3 mm smaller than the inner diameter of the prestressed pipeline, and the diameter of the top surface of the unidirectional positioning plug is 1.5cm smaller than that of the bottom surface of the prestressed pipeline.
As a further preferred scheme, through holes are formed in the centers of the unidirectional positioning plate and the unidirectional positioning plug, a double-headed screw is arranged in each through hole, and the two ends of the double-headed screw are used for positioning the unidirectional positioning plate and the unidirectional positioning plug into a whole through the inner nut and the outer nut respectively.
As a further preferred scheme, the bidirectional positioning ring is annular, specifically, a hollow annular bidirectional circular truncated cone is formed, and the shape of a single end is consistent with that of the unidirectional positioning plate.
Compared with the prior art, the utility model, beneficial effect is: the device is used for fixing the positions of two ends of the prestressed pipeline and maintaining the shape and the line shape of the prestressed pipeline, so that the pipeline position is accurate and smooth, and the forward connection with the next section beam pipeline is ensured. The positioning device has the advantages of simplicity in operation, accuracy in positioning, safety, reliability, construction environmental protection and the like, and creates good quality and economic benefits. The utility model discloses well one-way location end cap's application, fine solution in the past the prestressing force pipeline tip receive external force influences such as concrete placement and the problem of off normal position, improved the positioning accuracy of pipeline, guaranteed the tandem connection of front and back roof beam section.
The utility model discloses well one-way locating plate and two-way position circle's application, fine solution segment girder prestressed pipe dislocation, steel strand wires wear the problem of restrainting the difficulty around the prefabricated in-process of stub matching, improved the prestressed pipe and worn to restraint the rate of passage.
The utility model discloses well rubber aerifys application of stick, fine solution in the past because the damaged problem that leaks the thick liquid and lead to the pipeline jam of leaking of pipeline, and effectively improved the location linear shape of prestressing force pipeline.
The utility model discloses but wide application in the construction of the prestressing force pipeline location of bridge beam slab.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of the unidirectional positioning plate and the unidirectional positioning plug of the present invention;
FIG. 3 is a schematic view of the fitting structure of the unidirectional positioning plate and the unidirectional positioning plug of the present invention;
FIG. 4 is a schematic structural view of the two-way positioning ring of the present invention;
FIG. 5 is a schematic diagram of the practical operation structure of the present invention;
in the figure: the concrete structure comprises a unidirectional positioning plate 1, a unidirectional positioning plug 2, a bidirectional positioning ring 3, a rubber inflation rod 4, a double-threaded screw rod 5, an internal nut 6, an external nut 7, a beam corrugated pipe 8 in sections, a fixed end die 9, a matched beam section 10, a beam section to be poured 11 and a reinforcing steel bar positioning frame 13 fastening bolt 12.
Detailed Description
The technical solution of the present invention is further described and illustrated by the following specific embodiments.
Unless otherwise stated, the raw materials used in the examples of the present invention are all the raw materials commonly used in the art, and the methods used in the examples are all the conventional methods in the art.
Example (b):
a positioning device for a prestressed pipeline of a segmental beam by a stub matching method is shown in figures 1, 2, 3 and 4 and comprises a one-way positioning plate 1, a one-way positioning plug 2, a two-way positioning ring 3 and a rubber inflation rod 4.
The unidirectional positioning plate 1 and the unidirectional positioning plug 2 are arranged at the end part of the prestressed pipeline and used for forming a hole; the unidirectional positioning plate 1 and the unidirectional positioning plug 2 are arranged in a matching way and are connected into a whole; the one-way positioning plate 1 is formed by processing polyurethane rubber, through holes are formed in the centers of the one-way positioning plate 1 and the one-way positioning plug 2, the lower portion of the one-way positioning plate 1 is cylindrical, and the upper portion of the one-way positioning plate is in a round table shape. The cylindrical thickness of the bottom of the unidirectional positioning plate 1 is 1.5cm, and the diameter is 1cm larger than the outer diameter of the prestressed pipeline; the thickness of the top circular truncated cone is 1cm, the diameter of the bottom surface is the same as that of the cylinder, and the diameter of the top surface is 2-3 mm larger than the outer diameter of the prestressed pipeline. The method is mainly used for pore-forming of the end prestressed pipeline, and the pore-forming space is used as a placing space of the bidirectional positioning ring of the next section of beam prestressed pipeline. The unidirectional positioning plug 2 is made of rubber, and the unidirectional positioning plug 2 is in a circular truncated cone shape. The height of the unidirectional positioning plug 2 is 10cm, the diameter of the bottom surface of the unidirectional positioning plug is 2-3 mm smaller than the inner diameter of the prestressed pipeline, and the diameter of the top surface of the unidirectional positioning plug is 1.5cm smaller than the bottom surface of the prestressed pipeline. To facilitate the penetration of the pre-stressed conduit. A double-end screw 5 is arranged in the through hole, and two ends of the double-end screw 5 are respectively positioned with the unidirectional positioning plate 1 and the unidirectional positioning plug 2 into a whole through an inner nut 6 and an outer nut 7. The double-end screw 5 is an M10 double-end screw, the outer nut is used for fixing the rubber plug, and the inner nut is used for being connected with the fastening screw. The truncated cone-shaped rubber plug is fixedly connected with the one-way positioning plate 1 and the fixed end die 9 through a preset inner bolt group by a fastening bolt 13. The device is mainly used for fixing the end part of the prestressed pipeline, so that the prestressed pipeline can be accurately positioned. The fastening bolt 13 is an M10 screw, one end of the fastening bolt is connected with an inner nut in the unidirectional rubber plug, and the other end of the fastening bolt is fixed on the fixed end die, so that the unidirectional positioning plug, the unidirectional pore-forming plate and the fixed end die are connected into a whole.
The bidirectional positioning ring 3 is used for the forward connection of the front beam section and the rear beam section prestressed pipelines, the bidirectional positioning ring 3 is annular, specifically, a hollow annular bidirectional round table is formed, and the shape of a single end of the bidirectional positioning ring is consistent with that of the unidirectional positioning plate 1.
The rubber inflating rod 4 is arranged in the prestressed pipeline, and the rubber inflating rod 4 is hollow and has a shape matched with the prestressed pipeline after being inflated. The rubber inflation rod 4 is synthesized by neoprene, natural rubber and polyamide cloth, when in use, the air is inflated into the inflation rod through an air compressor to enable the inflation rod to expand and be attached to the prestressed pipeline, so that slurry leakage and blockage of the prestressed pipeline are prevented, and the line shape of the prestressed pipe is kept.
In actual practice, as shown in fig. 5, the following is specified:
firstly, determining the central position of each section pipeline according to the coordinates of the prestressed pipeline;
secondly, assembling a unidirectional positioning plug and a unidirectional pore-forming plate in sequence, and fixing the unidirectional positioning plug and the unidirectional pore-forming plate on a fixed end die of the section beam through a fastening screw;
thirdly, sleeving the prestressed pipeline into the one-way positioning plug, and fixing one end of the prestressed pipeline;
fourthly, sleeving a bidirectional positioning ring at the other end of the prestressed pipeline, and fixing the bidirectional positioning ring with a preformed hole of the matched beam section;
and fifthly, penetrating a rubber inflating rod, calculating the penetration length according to the length of the prestressed pipeline, then inflating by using an air compressor to enable the rubber inflating rod to be closely attached to the inner wall of the prestressed pipeline, and assembling the prestressed pipeline positioning device before pouring concrete.
And after the concrete pouring of the segmental beam is completed, the fastening screw can be dismounted after the end mould dismantling strength is reached, the rubber inflation rod is withdrawn, the one-way positioning plug, the one-way positioning plate and the two-way positioning ring are taken out, and then the segmental beam is cleaned and recycled.
The utility model discloses well one-way location end cap's application, fine solution in the past the prestressing force pipeline tip receive external force influences such as concrete placement and the problem of off normal position, improved the positioning accuracy of pipeline, guaranteed the tandem connection of front and back roof beam section.
The utility model discloses well unidirectional pore-forming plate and two-way position circle's application, fine solution segment roof beam prestressed pipe dislocation, steel strand wires wear the problem of restrainting the difficulty around the prefabricated in-process of stub matching, improved the prestressed pipe and worn to restraint the rate of passage.
The utility model discloses well rubber aerifys application of stick, fine solution in the past because the damaged problem that leaks the thick liquid and lead to the pipeline jam of leaking of pipeline, and effectively improved the location linear shape of prestressing force pipeline.
The utility model discloses but wide application in the construction of the prestressing force pipeline location of bridge beam slab.
The foregoing is only a preferred embodiment of the present invention and the technical principles applied thereto. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (7)
1. A positioning device for a prestressed pipeline of a segmental beam by a stub matching method is characterized by comprising a one-way positioning plate (1) and a one-way positioning plug (2) which are arranged at the end part of the prestressed pipeline and are used for forming a hole, two-way positioning rings (3) for the direct connection of the prestressed pipelines of front and rear beam segments, and a rubber inflation rod (4) arranged in the prestressed pipeline; the unidirectional positioning plate (1) and the unidirectional positioning plug (2) are matched and connected into a whole; the rubber inflation rod (4) is hollow and has a shape matched with the prestressed pipeline after being inflated.
2. The device for positioning the prestressed pipe of the sectional beam by the stub matching method according to claim 1, wherein the one-way positioning plate (1) has a cylindrical lower portion and a truncated cone upper portion.
3. The device for positioning the prestressed pipe of the sectional beam by the stub matching method according to claim 2, wherein the bottom cylindrical shape of the one-way positioning plate (1) has a thickness of 1.5cm and a diameter 1cm larger than the outer diameter of the prestressed pipe; the thickness of the top circular truncated cone is 1cm, the diameter of the bottom surface is the same as that of the cylinder, and the diameter of the top surface is 2-3 mm larger than the outer diameter of the prestressed pipeline.
4. The device for positioning the prestressed pipe of the sectional beam adopting the stub matching method according to claim 1, wherein the unidirectional positioning plug (2) is in a truncated cone shape.
5. The device for positioning the prestressed pipe of the sectional beam by the stub matching method according to claim 4, wherein the height of the unidirectional positioning plug (2) is 10cm, the diameter of the bottom surface is 2-3 mm smaller than the inner diameter of the prestressed pipe, and the diameter of the top surface is 1.5cm smaller than the bottom surface.
6. The positioning device for the prestressed pipe of the sectional beam adopting the stub matching method as claimed in claim 1, wherein the centers of the unidirectional positioning plate (1) and the unidirectional positioning plug (2) are provided with through holes, double-headed screws (5) are arranged in the through holes, and two ends of each double-headed screw (5) are respectively used for positioning the unidirectional positioning plate (1) and the unidirectional positioning plug (2) into a whole through an inner nut (6) and an outer nut (7).
7. The device for positioning the prestressed pipe of the sectional beam adopting the stub matching method according to claim 1, wherein the bidirectional positioning ring (3) is annular, specifically hollow, and forms an annular bidirectional circular truncated cone, and one end of the bidirectional positioning ring is in accordance with the shape of the unidirectional positioning plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920540008.5U CN209854572U (en) | 2019-04-19 | 2019-04-19 | Section beam prestressed pipeline positioning device adopting stub matching method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920540008.5U CN209854572U (en) | 2019-04-19 | 2019-04-19 | Section beam prestressed pipeline positioning device adopting stub matching method |
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| CN209854572U true CN209854572U (en) | 2019-12-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112207974A (en) * | 2020-09-08 | 2021-01-12 | 中交第一航务工程局有限公司 | Segment box girder prefabrication construction prestressed pipeline butt joint method by adopting stub matching method |
| CN112832135A (en) * | 2021-01-06 | 2021-05-25 | 中铁大桥局集团第一工程有限公司 | Positioning method and positioning tool for inner-shrinkage type lining pipe corrugated pipe |
-
2019
- 2019-04-19 CN CN201920540008.5U patent/CN209854572U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112207974A (en) * | 2020-09-08 | 2021-01-12 | 中交第一航务工程局有限公司 | Segment box girder prefabrication construction prestressed pipeline butt joint method by adopting stub matching method |
| CN112832135A (en) * | 2021-01-06 | 2021-05-25 | 中铁大桥局集团第一工程有限公司 | Positioning method and positioning tool for inner-shrinkage type lining pipe corrugated pipe |
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