CN220486246U - Device for prestress construction of main tower of cable-stayed bridge - Google Patents
Device for prestress construction of main tower of cable-stayed bridge Download PDFInfo
- Publication number
- CN220486246U CN220486246U CN202321853563.6U CN202321853563U CN220486246U CN 220486246 U CN220486246 U CN 220486246U CN 202321853563 U CN202321853563 U CN 202321853563U CN 220486246 U CN220486246 U CN 220486246U
- Authority
- CN
- China
- Prior art keywords
- main tower
- steel pipe
- anchor
- backing plate
- construction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010276 construction Methods 0.000 title claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 78
- 239000010959 steel Substances 0.000 claims abstract description 78
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 10
- 238000003466 welding Methods 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 230000002787 reinforcement Effects 0.000 description 5
- 239000002023 wood Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model provides a device for cable-stayed bridge main tower prestressing force construction, including seamless steel pipe, main tower prestressing force reinforcing bar and steel sheet box, the both ends welding anchor backing plate of seamless steel pipe, the outer end side welding steel sheet box of anchor backing plate has seted up the anchor eye on the anchor backing plate, the round hole has been seted up to the anchor eye department that steel sheet box corresponds with the anchor backing plate, main tower prestressing force reinforcing bar wears to in the steel sheet box through seamless steel pipe, the both ends of main tower prestressing force reinforcing bar are at steel sheet box internal connection nut, the last top trompil of seamless steel pipe at the anchor backing plate and welded steel pipe is as the mud jacking hole of follow-up construction. The tensioning grouting device is used in construction, only a constructor needs to install according to the paying-off position, the grouting effect and the appearance quality of a tensioning notch are obviously improved through the tensioning grouting device, and the tensioning grouting device only needs to install, position and reinforce according to the position of the prestressed short pipe, so that the tensioning grouting device is simple and convenient to operate, and the working efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of cable-stayed bridge construction, in particular to a device for cable-stayed bridge main tower prestress construction.
Background
In the design, the cast-in-situ main tower cable tower prestress construction is important, and is often limited by the small main tower section of the short cable-stayed bridge, the operation is inconvenient, the conventional prestress steel bars are externally corrugated pipes, the main tower steel bar construction welding operation is more, the corrugated pipes are easy to damage, and meanwhile, the notch of the tensioning end of the wood model prestress steel bar is easy to be pulled and the notch appearance quality is poor.
The conventional treatment method is that a spiral rib is arranged outside a prestressed reinforcement for the corrugated pipe, and a tensioning notch adopts a wood template, but the corrugated pipe is easy to damage and deform during the installation and welding operation of the reinforcement, so that the grouting is influenced, meanwhile, the wood template is used as a tensioning notch, the appearance quality is poor, and the prestressed reinforcement is easy to crack concrete during tensioning.
Disclosure of Invention
The utility model provides a device for prestress construction of a main tower of a cable-stayed bridge, which aims to solve the problems.
The utility model adopts the technical scheme that:
the utility model provides a device for cable-stayed bridge main tower prestressing force construction, including seamless steel pipe, main tower prestressing force reinforcing bar and steel sheet box, the both ends welding anchor backing plate of seamless steel pipe, the outer end side welding steel sheet box of anchor backing plate has seted up the anchor eye on the anchor backing plate, the round hole has been seted up to the anchor eye department that steel sheet box corresponds with the anchor backing plate, main tower prestressing force reinforcing bar wears to in the steel sheet box through seamless steel pipe, the both ends of main tower prestressing force reinforcing bar are at steel sheet box internal connection nut, the last top trompil of seamless steel pipe at the anchor backing plate and welded steel pipe is as the mud jacking hole of follow-up construction.
The seamless steel pipe is a seamless steel pipe with the phi of 60mm and the thickness of 2.5 mm.
The size of the anchor pad plate is 160mm x 40mm, and the anchor hole in the middle of the anchor pad plate is a hole with phi of 55 mm.
The size of the steel plate box is 165mm, 205mm, and the round hole formed in the steel plate box is a hole with the diameter of 65 mm.
The grouting holes are arranged at the position 20cm above the anchor backing plate on the seamless steel pipe.
The length of the steel pipe of the grouting hole is 10cm, and the diameter of the steel pipe is 30mm.
The prestressed reinforcement of the main tower is a high-strength twisted steel with the diameter of phi 40 mm.
The utility model has the beneficial effects that: the utility model is used in construction, only a constructor needs to install according to the paying-off position, the grouting effect and the appearance quality of the tensioning notch are obviously improved through the use of the tensioning grouting device, the requirements of design and related specifications are met, the constructor needs to install the corrugated pipe in the original process, meanwhile, the construction operation of adjusting and positioning the corrugated pipe and reserving the tensioning notch for the wood template is complicated, and the tensioning grouting device only needs to be used for installing, positioning and reinforcing according to the position of the prestressed short pipeline, so that the operation is simple and convenient, and the working efficiency is improved.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Wherein: 1-a steel plate box; 2-a nut; 3-anchor backing plate; 4-anchor holes; 5-seamless steel tube; 6-a main tower prestressed reinforcement; 7-grouting holes.
Detailed Description
The device for the main tower prestress construction of the cable-stayed bridge comprises a seamless steel pipe 5, a main tower prestress steel bar 6 and a steel plate box 1, wherein the seamless steel pipe 5 is phi 60mm, the seamless steel pipe 5 with the thickness of 2.5mm, anchor backing plates 3 are welded at two ends of the seamless steel pipe 5, the anchor backing plates 3 are beveled at a welded junction, the size of each anchor backing plate 3 is 160mm x 40mm, the steel plate box 1 is welded at the outer end side of each anchor backing plate 3, anchor holes 4 are formed in the anchor backing plates 3, the anchor holes 4 in the middle of each anchor backing plate 3 are holes with the diameter of phi 55mm, round holes are formed in the positions, corresponding to the anchor holes 4, of the steel plate box 1 and the anchor backing plates 3, of the steel plate box 1 are holes with the diameter of phi 65mm, the main tower prestress steel bar 6 penetrates into the steel plate box 1 through the seamless steel pipe 5, the main tower prestress steel bar 6 is high-strength threaded steel bar with the diameter of 40mm, the two ends of the main tower prestress steel bar 6 are connected with nuts 2 in the steel plate box 1, the seamless steel pipe 5 is provided with holes above the anchor backing plate 3 and welded with steel pipes as grouting holes 7 for subsequent construction, the grouting holes 7 are arranged at the position 20cm above the anchor backing plate 3 on the seamless steel pipe 5, the steel pipes of the grouting holes 7 are 10cm long and 30mm in diameter, the installation position of a tensioning grouting device is paid off before concrete pouring, the tensioning grouting device is installed, the steel bars penetrate into the steel plate box 1 through the seamless steel pipe 5 during construction of the main tower prestressed steel bars 6, temporary plugging is carried out on the outer side of the steel plate box 1 during main tower concrete pouring, the grouting holes 7 are connected with the soft leather pipes to extend to the outer side of a concrete pouring surface, temporary plugging measures are removed when the main tower prestressed steel bars 6 are tensioned, the whole device forms a seal, slurry leakage is avoided during grouting, the main tower prestressed construction is carried out by adopting the device, the operation is convenient and concise, the time is saved, the working efficiency is improved, the grouting effect is guaranteed, and meanwhile, the appearance quality of the tensioning notch is improved to a certain extent.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The foregoing describes the embodiments of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.
Claims (7)
1. A device for cable-stayed bridge main tower prestressing force construction, a serial communication port, including seamless steel pipe (5), main tower prestressing force reinforcing bar (6) and steel sheet box (1), anchor backing plate (3) are welded at the both ends of seamless steel pipe (5), outer end side welding steel sheet box (1) of anchor backing plate (3), anchor hole (4) have been seted up on anchor backing plate (3), the round hole has been seted up in anchor hole (4) department that steel sheet box (1) corresponds with anchor backing plate (3), main tower prestressing force reinforcing bar (6) are worn into in steel sheet box (1) through seamless steel pipe (5), the both ends of main tower prestressing force reinforcing bar (6) are at steel sheet box (1) internal connection nut (2), the last mud jacking hole (7) of punching and welding steel pipe as follow-up construction of top at anchor backing plate (3) of seamless steel pipe (5).
2. The device for the prestress construction of the main tower of the cable-stayed bridge according to claim 1, wherein the seamless steel pipe (5) is a seamless steel pipe (5) with phi 60mm and thickness of 2.5 mm.
3. Device for the pre-stressing construction of a main tower of a cable-stayed bridge according to claim 2, characterized in that the dimensions of the anchor pad (3) are 160mm x 40mm and the anchor holes (4) in the middle of the anchor pad (3) are holes of Φ55 mm.
4. A device for pre-stressing construction of a main tower of a cable-stayed bridge according to claim 3, characterized in that the size of the steel plate box (1) is 165mm by 205mm, and the round hole formed on the steel plate box (1) is a hole with phi 65 mm.
5. The device for the prestress construction of the main tower of the cable-stayed bridge according to claim 4, wherein the grouting holes (7) are arranged 20cm above the anchor backing plate (3) on the seamless steel pipe (5).
6. The device for the prestress construction of the main tower of the cable-stayed bridge according to claim 5, wherein the length of the steel pipe of the grouting hole (7) is 10cm, and the diameter of the steel pipe is 30mm.
7. The device for the prestress construction of the main tower of the cable-stayed bridge according to claim 6, wherein the main tower prestress steel bar (6) is a high-strength twisted steel bar with the diameter of phi 40 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321853563.6U CN220486246U (en) | 2023-07-14 | 2023-07-14 | Device for prestress construction of main tower of cable-stayed bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321853563.6U CN220486246U (en) | 2023-07-14 | 2023-07-14 | Device for prestress construction of main tower of cable-stayed bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220486246U true CN220486246U (en) | 2024-02-13 |
Family
ID=89830884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321853563.6U Active CN220486246U (en) | 2023-07-14 | 2023-07-14 | Device for prestress construction of main tower of cable-stayed bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220486246U (en) |
-
2023
- 2023-07-14 CN CN202321853563.6U patent/CN220486246U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209891084U (en) | Bridge support cushion stone anchor bolt hole positioning fixture | |
| CN202012153U (en) | Steel bar positioning fixture | |
| CN220486246U (en) | Device for prestress construction of main tower of cable-stayed bridge | |
| CN110541580A (en) | prestressed carbon fiber plate anchorage device system | |
| CN206448166U (en) | A kind of vertical prestressing mud jacking pipeline docking facilities | |
| CN211171973U (en) | Positioning protection device for assisting in lowering of pile foundation reinforcement cage | |
| CN218292915U (en) | Floor hangs hole reinforcing apparatus | |
| CN201704954U (en) | Formwork opposite-pulling device for pouring waterproof walls | |
| CN110629792A (en) | Splicing construction method for corrugated steel pipe gallery | |
| CN214561743U (en) | Fixing device for internal mold of box girder | |
| CN103806653A (en) | Adjustable water stop screw set and construction method thereof | |
| CN220688208U (en) | Water stop and limiting device for pipe jacking construction hole | |
| CN211735353U (en) | Underground continuous wall structure convenient for subway shield to pass through | |
| CN201560535U (en) | Pre-reserved dowel bar slot-shaped plate | |
| KR101217488B1 (en) | Extension structure of pile foundation | |
| CN219909540U (en) | Superimposed floor carrier plate | |
| CN217583423U (en) | Steel-concrete buttress for pipeline in pump house | |
| CN213741922U (en) | Side wall reinforcing steel bar positioning control template | |
| CN203755657U (en) | Formwork capable of completing shear wall split screw construction on single side | |
| CN204645270U (en) | A kind of floorslab embedded part device | |
| CN217759989U (en) | A regularization template for deformation joint department shear force wall construction | |
| CN204818565U (en) | Pressure steel pipe stiffening ring installation tension sleeve device | |
| CN110566230A (en) | externally-hung channel system and construction method thereof | |
| CN204940224U (en) | Pre-buried steel sheet suitable for wood pattern | |
| CN216108111U (en) | Bridge jacking limiting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |