CN208280967U - A kind of large cross-section tunnel secondary lining reinforcing bar conversion bracket system - Google Patents
A kind of large cross-section tunnel secondary lining reinforcing bar conversion bracket system Download PDFInfo
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- CN208280967U CN208280967U CN201820860808.0U CN201820860808U CN208280967U CN 208280967 U CN208280967 U CN 208280967U CN 201820860808 U CN201820860808 U CN 201820860808U CN 208280967 U CN208280967 U CN 208280967U
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- reinforcing bar
- top boom
- bracket system
- secondary lining
- large cross
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Abstract
The utility model provides a kind of large cross-section tunnel secondary lining reinforcing bar conversion bracket system, including truss, the truss includes top boom, the axially disposed through-hole of top boom, transmission rod is provided in the through-hole, nipple is arranged in described transmission rod one end, and the other end stretches out top boom, and the nipple is located at outside the top boom.Large cross-section tunnel secondary lining reinforcing bar provided by the utility model converts bracket system, can play the role of bracketing Tunnel Second Lining reinforcing bar, reduces the working strength and difficulty of support assembling reinforcement, shortens the time, improve work efficiency；Features simple structure, bearing capacity are strong, light-weight, convenient for operation.
Description
Technical field
The utility model relates to a kind of large cross-section tunnel secondary lining reinforcing bars to convert bracket system, belong to Building technology neck
Domain.
Background technique
Currently, the width of double track tunnel section is mostly in 12m or so, Tunnel Second Lining structure reinforcing bars binding and fixing are mostly to lean on
It is longitudinal to intersect with circumferential reinforcement, crosspoint is bound securely to and is aided with manual arc welding, it will longitudinal and circumferential reinforcement shape
Integral reinforced mesh structure increases resistance capacity to deformation, improves mesh sheet structural stability can, while being arranged upwards in advance
Due to sinking deflection caused by being self-possessed after reinforcing bar binding, make the reinforced mesh sedimentation and deformation of arch without departing from deviation range, it is full
Sufficient liner structure and construction requirement guarantee secondary lining main structure performance.
It can satisfy narrow-bore tunnel secondary lining reinforcement engineering construction after the reinforcing of reinforcing bar self structure at present, work as section
There are the following problems after size increase: (1) tunnel cross-section larger, and upper arch cross dimensions broadens, secondary liner structure steel
Muscle design quantity increases, and self weight is consequently increased, and reinforcing bar is reinforced the amount of deforming by self structure and obviously increased, inclined beyond allowing
Difference.(2) due to the airtightness of tunnel waterproofing layer, the auxiliary equipment such as hanger cannot be set in supporting construction in the early stage and carries out steel mesh
The reinforcing of piece.(3) since secondary liner structure thickness is limited, it is unsatisfactory for first that lining trolley template is in place, the rear reinforcing bar that carries out is tied up
The construction process requirement of bundle.(4) the Auxiliary support measure for setting up assembling reinforcement scaffold is taken, ancillary measure work will be increased
Amount will also remove support scaffolding before formwork jumbo installation, extend the period of each construction segment, increase engineering cost.
Utility model content
Based on the above deficiency, the technical problem to be solved by the present invention is to provide a kind of large cross-section tunnel secondary lining steel
Myospasm changes bracket system, can play the role of bracketing Tunnel Second Lining reinforcing bar, and the work for reducing support assembling reinforcement is strong
Degree and difficulty, shorten the time, improve work efficiency；Features simple structure, bearing capacity are strong, light-weight, convenient for operation.
In order to solve the above technical problems, the utility model uses following technical scheme:
A kind of large cross-section tunnel secondary lining reinforcing bar conversion bracket system, including truss, the truss include top boom, institute
The axially disposed through-hole of top boom is stated, transmission rod is provided in the through-hole, nipple is arranged in described transmission rod one end, another
Top boom is stretched out at end, and the nipple is located at outside the top boom.
The through-hole is circle, and the diameter of the nipple is greater than the diameter of the through-hole.
Bearing is provided between the top boom and the transmission rod, the bearing is separately positioned on the transmission rod
Both ends.
The limited block that limitation transmission rod moves axially is additionally provided on the transmission rod, the limited block is located at institute
It states between bearing.
Lifting lug is provided on the top boom.
The truss further includes lower boom and diagonal brace, and the diagonal brace is arranged between the top boom and the lower boom.
Using above technical scheme, the utility model achieves following technical effect:
(1) large cross-section tunnel secondary lining reinforcing bar provided by the utility model converts bracket system, can play bracketing tunnel
The effect of road secondary lining reinforcing bar reduces the working strength and difficulty of support assembling reinforcement, improves work efficiency；Structure letter
Just, bearing capacity is strong, light-weight, convenient for operation；
(2) integrality that ensure that tunnel waterproofing layer structure avoids increasing sectional repair point, improves waterproof construction
Seal water isolating；
(3) turnover reuse may be implemented in conversion bracket system, only need to disposably process investment, reduce applying for engineering
Work cost.
Detailed description of the invention
Fig. 1 is the structure chart that the utility model large cross-section tunnel secondary lining reinforcing bar converts bracket system；
Fig. 2 is enlarged drawing at A shown in Fig. 1；
Fig. 3 is enlarged drawing at B shown in Fig. 1；
Fig. 4 is the usage state diagram that the utility model large cross-section tunnel secondary lining reinforcing bar converts bracket system.
Specific embodiment
As Figure 1-Figure 4, a kind of large cross-section tunnel secondary lining reinforcing bar provided by the utility model converts bracket system
1, including truss, the truss include top boom 11, the axially disposed through-hole of the top boom 11, are provided with biography in the through-hole
Nipple 18 is arranged in power bar 12,12 one end of transmission rod, and the other end stretches out top boom 11, and nipple 18 is located at the top boom
Outside 11.
Wherein, truss includes top boom 11, lower boom 15 and diagonal brace 14, the setting of diagonal brace 14 the top boom 11 with
Between the lower boom 15.Top boom 11 uses seamless steel pipe, mainly support tunnel structure reinforcing bar, bears secondary liner structure
The weight of reinforcing bar guarantees that Tunnel Second Lining reinforcement location meets design requirement.Lower boom 15 uses seamless steel pipe, with top boom
11 are collectively formed truss structure, bear the weight of secondary liner structure reinforcing bar, guarantee that Tunnel Second Lining reinforcement location satisfaction is set
Meter requires.Diagonal brace 14 uses seamless steel pipe, and truss structure is collectively formed with top boom 11 and lower boom 15, bears secondary lining knot
The weight of structure reinforcing bar guarantees that Tunnel Second Lining reinforcement location meets design requirement.
The axially disposed through-hole of top boom 11, through-hole are circle, and transmission rod 12 is provided in through-hole, and transmission rod 12 uses nothing
Stitch steel pipe, nipple 18 is arranged in 12 one end of transmission rod, and nipple 18 is located at outside the top boom 11, nipple 18 it is straight
Diameter is greater than the diameter of through-hole, nipple 18 and 12 1 same-action of transmission rod, is the secondary lining converting bracket system 1 and completing
The hinge joint of structure bears the load of reinforcing bar weight.Nipple 18 is connected with service sleeve 19, service sleeve 19 and completion
Secondary liner structure reinforcement welding it is fixed become whole, nipple 18 is screwed in sleeve, bracket system 1 can will be converted
One end is fixed.The other end of transmission rod 12 stretches out top boom 11, can apply torque, realizes installation and removal conversion bracket system
1 function.Bearing 16 is provided between top boom 11 and transmission rod 12, bearing 16 is separately positioned on the both ends of transmission rod 12,
The effective transmitting for guaranteeing torque, reduces the labor intensity of operating personnel.Limitation transmission rod 12 is additionally provided on transmission rod 12 to send out
The limited block 17 of raw axial movement, between the bearing 16, limitation drive rod is subjected to displacement limited block 17, guarantees transmission knot
Structure performance is stablized.Top boom 11 and transmission rod 12 pass through bearing 16 and are combined into overall structure, pass through the rotation realization of transmission rod 12 and turn
The installation and dismounting for changing bracket system 1, achieve the purpose that be used in turn.
Lifting lug 13 is provided on top boom 11, lifting lug 13 is mounted on the other end of top boom 11, is conversion bracket system 1
With the hinge joint of preliminary bracing structure, the load of reinforcing bar weight is born.
As shown in figure 4, being arranged to two sides every 3m in tunnel arch 2 along center line when tunnel cross-section lateral dimension is larger
One the utility model converts bracket system 1, and 5 are arranged altogether, meets the weight demands of support secondary lining reinforcing bar, both guaranteed
Reinforcing bar binding construction is gone on smoothly, and after the completion of reinforcing bar binding, and it is in place not influence secondary lining trolley.After formwork jumbo is in place
Reinforcing bar weight is supported by trolley, can be by rotation disassembly conversion 1 device of bracket system of transmission rod 12, and carrying out next circulation makes
With.
The utility model large cross-section tunnel secondary lining reinforcing bar converts bracket system 1, can play the secondary lining in support tunnel
The effect for building reinforcing bar reduces support assembling reinforcement working strength and difficulty, shortens the time, improve work efficiency；Structure
Simplicity, bearing capacity are strong, light-weight, convenient for operation；The integrality that ensure that tunnel waterproofing layer structure avoids increasing sectional repair point
Position, improves the sealing water isolating of waterproof construction；Conversion bracket system 1 may be implemented turnover and reuse, and only need disposable
Processing investment, reduces the construction cost of engineering.
Finally, it should be noted that the above is only the preferred embodiment of the utility model, it is not limited to practical
It is novel, although the utility model is described in detail referring to embodiment, for those skilled in the art, according to
It is so possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is equally replaced
It changes, but within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all include
It is within the protection scope of the utility model.
Claims (6)
1. a kind of large cross-section tunnel secondary lining reinforcing bar converts bracket system, it is characterised in that: including truss, the truss includes
Top boom, the top boom axially disposed through-hole are provided with transmission rod in the through-hole, and screw thread is arranged in described transmission rod one end
Connector, the other end stretch out top boom, and the nipple is located at outside the top boom.
2. large cross-section tunnel secondary lining reinforcing bar according to claim 1 converts bracket system, it is characterised in that: described logical
Hole is circle, and the diameter of the nipple is greater than the diameter of the through-hole.
3. large cross-section tunnel secondary lining reinforcing bar according to claim 1 converts bracket system, it is characterised in that: described
Bearing is provided between top boom and the transmission rod, the bearing is separately positioned on the both ends of the transmission rod.
4. large cross-section tunnel secondary lining reinforcing bar according to claim 3 converts bracket system, it is characterised in that: described
The limited block that limitation transmission rod moves axially is additionally provided on transmission rod, the limited block is between the bearing.
5. large cross-section tunnel secondary lining reinforcing bar according to claim 4 converts bracket system, it is characterised in that: described
Lifting lug is provided on top boom.
6. large cross-section tunnel secondary lining reinforcing bar according to claim 1 converts bracket system, it is characterised in that: the purlin
Frame further includes lower boom and diagonal brace, and the diagonal brace is arranged between the top boom and the lower boom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820860808.0U CN208280967U (en) | 2018-06-05 | 2018-06-05 | A kind of large cross-section tunnel secondary lining reinforcing bar conversion bracket system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820860808.0U CN208280967U (en) | 2018-06-05 | 2018-06-05 | A kind of large cross-section tunnel secondary lining reinforcing bar conversion bracket system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208280967U true CN208280967U (en) | 2018-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820860808.0U Active CN208280967U (en) | 2018-06-05 | 2018-06-05 | A kind of large cross-section tunnel secondary lining reinforcing bar conversion bracket system |
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| CN (1) | CN208280967U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090285A (en) * | 2021-04-22 | 2021-07-09 | 中铁一局集团有限公司 | Tunnel secondary lining reinforcing steel bar protective layer control and stress system conversion construction method |
-
2018
- 2018-06-05 CN CN201820860808.0U patent/CN208280967U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090285A (en) * | 2021-04-22 | 2021-07-09 | 中铁一局集团有限公司 | Tunnel secondary lining reinforcing steel bar protective layer control and stress system conversion construction method |
| CN113090285B (en) * | 2021-04-22 | 2022-12-02 | 中铁一局集团有限公司 | Tunnel secondary lining reinforcing steel bar protective layer control and stress system conversion construction method |
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