CN213654859U - Adjustable positioning device for short side wall steel bars and water stop belts of tunnel - Google Patents
Adjustable positioning device for short side wall steel bars and water stop belts of tunnel Download PDFInfo
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- CN213654859U CN213654859U CN202021598598.6U CN202021598598U CN213654859U CN 213654859 U CN213654859 U CN 213654859U CN 202021598598 U CN202021598598 U CN 202021598598U CN 213654859 U CN213654859 U CN 213654859U
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Abstract
The utility model provides an adjustable positioning device for tunnel short side wall reinforcing steel bars and water stop belts, wherein standard segments are connected by square connecting pipes; each standard section comprises two parallel steel bars, wherein inner ring steel bar positioning clamps are arranged on one side, facing the second steel bar, of the first steel bar at intervals along the length direction, and inner ring steel bar positioning clamps are arranged on one side, facing away from the first steel bar, of the second steel bar at intervals along the length direction; the expansion screw lifting hook is fixed on the primary support sprayed concrete side wall through an impact drilling hole; the upper end of the telescopic rod piece is hung on the expansion hook, and the lower end of the telescopic rod piece is respectively connected with the outer ring steel bar positioning fixture of the inner ring steel bar positioning fixture through the lifting lugs; the steel plate with the holes is welded with the connecting steel plate with the strip-shaped holes. The nut is welded with the inner ring steel bar positioning clamp; the distance-adjusting bolt penetrates into the nut; hanging the U-shaped steel bars into the steel plates with the holes; the water stop belt extends into the U-shaped groove of the U-shaped steel bar and is straightened by the U-shaped groove.
Description
Technical Field
The utility model relates to a tunnel construction especially relates to short limit wall position rebar positioning.
Background
When inverted arch steel bars in a tunnel are constructed, the steel bars at the position of a short side wall are positioned by adopting a temporary fixed steel bar support or a steel bar positioning clamp with a fixed interval, when the interval or the layer distance of the steel bars is changed, the positioning clamp needs to be remachined, and an operator always has troublesome construction, so that the overall construction quality of the steel bars is poor, and the common quality problems that the steel bar interval is uniform, the design requirements are not met, a steel bar protection layer is too thick, the steel bar layer distance does not meet the design requirements and the like exist; the longitudinal rubber water stop belt on the short side wall is installed after the concrete pouring is finished, the water stop belt is not straight in line shape and uneven in height, and the overall installation quality is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the main technical problem that a positioner with adjustable short side wall reinforcing bar in tunnel and waterstop is provided, need not reprocess the locator card when meetting reinforcing bar interval range upon range of change, some devices are adjusted to the accessible, reach reinforcing bar interval, range upon range of variable purpose to can dismantle recycling.
In order to solve the technical problem, the utility model provides a positioner with adjustable short side wall reinforcing bar in tunnel and waterstop, include: the device comprises at least two standard segments, a connecting square tube, an outer ring steel bar positioning fixture, a connecting bolt, a distance adjusting bolt, a lifting lug, a connecting steel plate with a strip-shaped hole, an inner ring steel bar positioning fixture, a nut, a telescopic rod piece, an expansion screw lifting hook, a steel plate with a hole and a U-shaped steel bar;
the standard segments are connected by adopting square connecting tubes; each standard section comprises two parallel steel bars, wherein the inner ring steel bar positioning clamps are arranged on one side, facing the second steel bar, of the first steel bar at intervals along the length direction, and the inner ring steel bar positioning clamps are arranged on one side, facing away from the first steel bar, of the second steel bar at intervals along the length direction; one end of the connecting steel plate with the strip-shaped hole is welded with the outer ring steel bar positioning fixture of the inner ring steel bar positioning fixture respectively, and the first steel bar and the second steel bar are connected through the connecting bolt to form a frame structure;
the expansion screw lifting hook is fixed on the primary support sprayed concrete side wall through an impact drilling hole; the upper end of the telescopic rod piece is hung on the expansion hook, and the lower end of the telescopic rod piece is respectively connected with the outer ring steel bar positioning fixture of the inner ring steel bar positioning fixture through the lifting lugs; and the steel plate with the holes is welded with the connecting steel plate with the strip-shaped holes. The nut is welded with the inner ring steel bar positioning clamp; the distance adjusting bolt penetrates into the nut; the U-shaped steel bar is hung in the steel plate with the holes.
In a preferred embodiment: the cross section opening of connecting square pipe is 19mm, and the wall thickness is 2mm, and length is 8 cm.
In a preferred embodiment: the second reinforcing bar of first reinforcing bar is the square pipe, and the opening is 25mm, length 2.5 m.
In a preferred embodiment: the outer ring steel bar positioning clamp and the inner ring steel bar positioning clamp are positioning steel bar heads with the diameter of 8mm and the length of 2 cm; the distance between two adjacent positioning reinforcing steel bar heads is 5 cm.
In a preferred embodiment: the connecting bolt is M10 30 mm.
In a preferred embodiment: the adjustable bolt is a screw with the length of M25 x 18mm, and a long steel bar wrench with the length of 13cm is welded at one end of the adjustable bolt.
In a preferred embodiment: the lifting lug is a steel plate with the thickness of 8mm, and the aperture of the lifting lug is 10 mm.
In a preferred embodiment: the connecting steel plate with the strip-shaped holes is a steel plate with the thickness of 8mm, and the width of the strip-shaped holes is 12 mm.
In a preferred embodiment: the nut is an M25 nut.
In a preferred embodiment: the expansion screw hook is an expansion bolt with the diameter of 10 mm.
In a preferred embodiment: the thickness of the steel plate with the holes is 5mm, the aperture is 8mm, and the hole distance is 12 mm.
Compared with the prior art, the technical scheme of the utility model possess following beneficial effect:
the utility model provides a positioner with adjustable short side wall reinforcing bar in tunnel and waterstop adopts modular steel construction system as positioning fixture when short side wall reinforcing bar in tunnel, waterstop construction, has following advantage:
(1) the main materials are selected from square tubes, reinforcing steel bars, steel plates and the like, and the processing is simple, and the operation is light and not heavy.
(2) The steel bar assembling and disassembling device is easy to assemble and disassemble, can be recycled, is suitable for the design working conditions of most tunnel steel bars, and has a wide application range.
(3) The steel bar layer distance and the protective layer thickness can be accurately adjusted, and the construction quality of the steel bars and the water stop belts is greatly improved.
(4) The inverted arch short side wall is processed according to 3.28m unit sections, can be combined into different lengths of 3.28m, 6.56m, 9.84m and the like, and basically meets the construction length of one inverted arch short side wall. ) A
(5) The investment of temporary positioning fixture steel bars and steel plates is reduced, and the construction cost is reduced.
(6) The equipment is simple swift, has shortened the engineering time, has improved the efficiency of construction of reinforcing bar, waterstop accurate positioning, has effectively reduced the cost of labor input.
Drawings
Fig. 1 is a plan view of an adjustable positioning device for tunnel short side wall steel bars and water stop belts in the preferred embodiment of the invention;
fig. 2 is a front view of the adjustable positioning device for the tunnel short side wall steel bars and the water stop belts in the preferred embodiment of the invention.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are used in a broad sense, and for example, "connected," may be fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or connected between two elements.
Referring to fig. 1 and 2, the utility model provides a positioner with adjustable short side wall reinforcing bar in tunnel and waterstop, include: the steel bar positioning device comprises at least two standard sections, a connecting square pipe 1, an outer ring steel bar positioning clamp 2, a connecting bolt 3, a distance adjusting bolt 4, a lifting lug 5, a connecting steel plate 6 with a strip-shaped hole, an inner ring steel bar positioning clamp 7, a nut 8, a telescopic rod piece 9, an expansion screw lifting hook 10, a steel plate with a hole 11 and a U-shaped steel bar 12;
the standard segments are connected by adopting a connecting square tube 1; each standard section comprises two parallel steel bars, wherein the inner ring steel bar positioning clamps 7 are arranged on one side, facing the second steel bar, of the first steel bar at intervals along the length direction, and the inner ring steel bar positioning clamps 7 are arranged on one side, facing away from the first steel bar, of the second steel bar at intervals along the length direction; one end of the connecting steel plate 6 with the strip-shaped hole is respectively welded with the inner ring steel bar positioning clamp 7 and the outer ring steel bar positioning clamp 2, and the first steel bar and the second steel bar are connected through the connecting bolt 3 to form a frame structure;
the expansion screw lifting hook 10 is fixed on the primary support sprayed concrete side wall through impact drilling; the upper end of the telescopic rod piece 9 is hung on the expansion hook, and the lower end of the telescopic rod piece is respectively connected with the outer ring steel bar positioning fixture 2 of the inner ring steel bar positioning fixture 7 through the lifting lug 5; the steel plate with the holes 11 is welded with the connecting steel plate 6 with the strip-shaped holes. The nut 8 is welded with the inner ring steel bar positioning clamp 7; the distance adjusting bolt 4 penetrates into the nut 8; the U-shaped steel bar 12 is hung on the steel plate 11 with the holes.
When the tunnel lining hoop main reinforcement spacing is used, the tunnel lining hoop main reinforcement spacing is generally integral multiple of 5cm according to construction experience. Therefore, the distance between adjacent positioning reinforcing steel bar heads on the inner ring reinforcing steel bar positioning clamp 7 and the outer ring reinforcing steel bar positioning clamp 2 is set to be 5cm so as to meet the design distance of common annular main bars of 10cm, 15cm, 20cm, 25cm, 30cm and the like.
The dimensions of the other components are designed as follows: the cross-section opening of connecting square pipe 1 is 19mm, and the wall thickness is 2mm, and length is 8 cm. The second reinforcing bar of first reinforcing bar is the square pipe, and the opening is 25mm, length 2.5 m. The outer ring steel bar positioning clamp 2 and the inner ring steel bar positioning clamp 7 are positioning steel bar heads with the diameter of 8mm and the length of 2 cm; the distance between two adjacent positioning reinforcing steel bar heads is 5 cm. The connecting bolt 3 is a bolt of M10 × 30 mm. The distance adjusting bolt 4 is a screw with the length of M25 x 18mm, and a long steel bar wrench with the length of 13cm is welded at one end of the distance adjusting bolt. The lifting lug 5 is a steel plate with the thickness of 8mm, and the aperture of the lifting lug 5 is 10 mm. The connecting steel plate 6 with the strip-shaped holes is a steel plate with the thickness of 8mm, and the width of the strip-shaped holes is 12 mm. The nut 8 is an M25 nut 8. The expansion screw hook 10 is an expansion bolt with the diameter of 10 mm. The thickness of the steel plate with holes 11 is 5mm, the aperture is 8mm, and the hole distance is 12 mm.
(1) Before the construction of the inverted arch reinforcing steel bars, the height marking position of the top surface of the short side wall and the distance between the inverted arch inner ring reinforcing steel bars at the height marking position and the primary support surface are measured.
(2) And determining the driving position of the expansion screw hook 10 according to the height marking position of the top surface of the low-profile wall and the length size of the telescopic rod 9.
(3) And determining the interlayer distance of the inner ring steel bars and the outer ring steel bar positioning clamps 2 of the inner ring steel bar positioning clamps 7 according to the design drawing, and connecting the outer ring steel bar positioning clamps 2 with bolts through connecting steel plates 6 with strip-shaped holes to form an integral frame.
(4) The frame is hung on the wall of the primary support side of the tunnel through a telescopic rod piece 9. The elevation of the whole frame is accurately positioned by adjusting the length of the telescopic rod piece 9.
(5) Because the primary support is overetched or has a certain reserved deformation, the thickness of the steel bar protection layer meets the design requirement by adjusting the distance adjusting bolt 4.
(6) After the reinforcing steel bars are applied and before concrete is poured, the longitudinal water stop belts are clamped by the U-shaped reinforcing steel bars 12, the end parts of the U-shaped reinforcing steel bars 12 are hooked into the steel plates 11 with the holes, the linear adjustment of the water stop belts is straightened, and the depth of the embedded concrete is adjusted to be half of the width of the water stop belts.
Compared with the prior art, the technical scheme of the utility model possess following beneficial effect:
the utility model provides a positioner with adjustable short side wall reinforcing bar in tunnel and waterstop adopts modular steel construction system as positioning fixture when short side wall reinforcing bar in tunnel, waterstop construction, has following advantage:
(1) the main materials are selected from square tubes, reinforcing steel bars, steel plates and the like, and the processing is simple, and the operation is light and not heavy.
(2) The steel bar assembling and disassembling device is easy to assemble and disassemble, can be recycled, is suitable for the design working conditions of most tunnel steel bars, and has a wide application range.
(3) The steel bar layer distance and the protective layer thickness can be accurately adjusted, and the construction quality of the steel bars and the water stop belts is greatly improved.
(4) The inverted arch short side wall is processed according to 3.28m unit sections, can be combined into different lengths of 3.28m, 6.56m, 9.84m and the like, and basically meets the construction length of one inverted arch short side wall.
(5) The investment of temporary positioning fixture steel bars and steel plates is reduced, and the construction cost is reduced.
(6) The equipment is simple swift, has shortened the engineering time, has improved the efficiency of construction of reinforcing bar, waterstop accurate positioning, has effectively reduced the cost of labor input.
The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.
Claims (10)
1. The utility model provides a positioner with adjustable short limit wall reinforcing bar in tunnel and waterstop which characterized in that includes: the device comprises at least two standard segments, a connecting square tube, an outer ring steel bar positioning fixture, a connecting bolt, a distance adjusting bolt, a lifting lug, a connecting steel plate with a strip-shaped hole, an inner ring steel bar positioning fixture, a nut, a telescopic rod piece, an expansion screw lifting hook, a steel plate with a hole and a U-shaped steel bar;
the standard segments are connected by adopting square connecting tubes; each standard section comprises two parallel steel bars, wherein the inner ring steel bar positioning clamps are arranged on one side, facing the second steel bar, of the first steel bar at intervals along the length direction, and the inner ring steel bar positioning clamps are arranged on one side, facing away from the first steel bar, of the second steel bar at intervals along the length direction; one end of the connecting steel plate with the strip-shaped hole is welded with the outer ring steel bar positioning fixture of the inner ring steel bar positioning fixture respectively, and the first steel bar and the second steel bar are connected through the connecting bolt to form a frame structure;
the expansion screw lifting hook is fixed on the primary support sprayed concrete side wall through an impact drilling hole; the upper end of the telescopic rod piece is hung on the expansion hook, and the lower end of the telescopic rod piece is respectively connected with the outer ring steel bar positioning fixture of the inner ring steel bar positioning fixture through the lifting lugs; the steel plate with the holes is welded with the connecting steel plate with the strip-shaped holes; the nut is welded with the inner ring steel bar positioning clamp; the distance adjusting bolt penetrates into the nut; hanging the U-shaped steel bars into the steel plates with the holes; the water stop belt extends into the U-shaped groove of the U-shaped steel bar and is straightened by the U-shaped groove.
2. The adjustable positioning device for the tunnel low-profile wall steel bars and the water stop belts as claimed in claim 1, wherein: the cross section opening of connecting square pipe is 19mm, and the wall thickness is 2mm, and length is 8 cm.
3. The adjustable positioning device for the tunnel low-profile wall steel bars and the water stop belts as claimed in claim 1, wherein: the second reinforcing bar of first reinforcing bar is the square pipe, and the opening is 25mm, length 2.5 m.
4. The adjustable positioning device for the tunnel low-profile wall steel bars and the water stop belts as claimed in claim 1, wherein: the outer ring steel bar positioning clamp and the inner ring steel bar positioning clamp are positioning steel bar heads with the diameter of 8mm and the length of 2 cm; the distance between two adjacent positioning reinforcing steel bar heads is 5 cm.
5. The adjustable positioning device for the tunnel low-profile wall steel bars and the water stop belts as claimed in claim 1, wherein: the connecting bolt is M10 30 mm.
6. The adjustable positioning device for the tunnel low-profile wall steel bars and the water stop belts as claimed in claim 1, wherein: the adjustable bolt is a screw with the length of M25 x 18mm, and a long steel bar wrench with the length of 13cm is welded at one end of the adjustable bolt.
7. The adjustable positioning device for the tunnel low-profile wall steel bars and the water stop belts as claimed in claim 1, wherein: the lifting lug is a steel plate with the thickness of 8mm, and the aperture of the lifting lug is 10 mm.
8. The adjustable positioning device for the tunnel low-profile wall steel bars and the water stop belts as claimed in claim 1, wherein: the connecting steel plate with the strip-shaped holes is a steel plate with the thickness of 8mm, and the width of the strip-shaped holes is 12 mm.
9. The adjustable positioning device for the tunnel low-profile wall steel bars and the water stop belts as claimed in claim 1, wherein: the expansion screw hook is an expansion bolt with the diameter of 10 mm.
10. The adjustable positioning device for the tunnel low-profile wall steel bars and the water stop belts as claimed in claim 1, wherein: the thickness of the steel plate with the holes is 5mm, the aperture is 8mm, and the hole distance is 12 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021598598.6U CN213654859U (en) | 2020-08-04 | 2020-08-04 | Adjustable positioning device for short side wall steel bars and water stop belts of tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021598598.6U CN213654859U (en) | 2020-08-04 | 2020-08-04 | Adjustable positioning device for short side wall steel bars and water stop belts of tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213654859U true CN213654859U (en) | 2021-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021598598.6U Active CN213654859U (en) | 2020-08-04 | 2020-08-04 | Adjustable positioning device for short side wall steel bars and water stop belts of tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213654859U (en) |
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- 2020-08-04 CN CN202021598598.6U patent/CN213654859U/en active Active
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