CN210370708U - Longitudinal connecting structure between tunnel primary support steel frame trusses - Google Patents
Longitudinal connecting structure between tunnel primary support steel frame trusses Download PDFInfo
- Publication number
- CN210370708U CN210370708U CN201921414364.9U CN201921414364U CN210370708U CN 210370708 U CN210370708 U CN 210370708U CN 201921414364 U CN201921414364 U CN 201921414364U CN 210370708 U CN210370708 U CN 210370708U
- Authority
- CN
- China
- Prior art keywords
- tunnel
- steel frame
- connecting structure
- steelframe
- abutting
- 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
Images
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model relates to a building construction tool field specifically discloses longitudinal connection structure between tunnel preliminary bracing steelframe pin, including a plurality of riveting the steelframe on the tunnel inner wall, be equipped with coupling mechanism between the two adjacent pin steelframes, coupling mechanism is equipped with adjusting part including the coupling assembling that is used for connecting the steelframe between two coupling assembling, and swing joint has spacing tight mechanism of support on the adjusting part. The utility model provides a long, the inefficiency of operating time and the problem of potential safety hazard that exist when current tunnel support steelframe adopts the welding to carry out longitudinal connection.
Description
Technical Field
The utility model relates to a construction tool field, concretely relates to longitudinal connection structure between tunnel preliminary bracing steelframe pin.
Background
At present, the composite lining is widely applied to tunnel engineering in China, and primary support is a main bearing structure according to the design concept of the new Austrian method. The primary support of the tunnel is a combined support system consisting of sprayed concrete, anchor rods, steel frames and the like, wherein the steel frames have higher support strength and rigidity and can obviously enhance the primary support capability, and the steel frames are usually riveted on the inner wall of the tunnel through anchorage devices. In order to increase the overall stability of each steel frame, longitudinal connecting steel bars are often adopted for connecting adjacent steel frames; in order to anchor the steel frame at the deep part of the surrounding rock and fully exert the rigidity and the strength of the steel frame, foot locking anchor pipes are often arranged at the foot parts of the steps of the steel frame. The traditional longitudinal connecting steel bar and the lock foot are connected with the steel frame in a welding mode.
Although certain supporting strength and integrity between steel frames can be ensured by adopting welding for connection between steel frames, a large amount of toxic welding gas can be generated in the welding process due to relatively closed field construction environment in the tunnel, so that the safety of field construction personnel is threatened; in addition, in the process of steel frame support, the support requirements of different tunnels are different, the density of the adopted steel frame support is also different, namely the distance between two adjacent steel frames of different tunnels is different, when the two adjacent steel frames are connected, the steel bars with proper lengths need to be pre-cut on site and are welded, the operation time is long, and the efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model discloses it is providing longitudinal connection structure between tunnel preliminary bracing steelframe pin to solve the problem of operating time length, inefficiency and potential safety hazard that current tunnel bracing steelframe adopted the welding to carry out longitudinal connection to exist.
In order to achieve the above purpose, the technical scheme of the utility model is as follows: longitudinal connection structure between tunnel preliminary bracing steelframe roof truss, including a plurality of riveting the steelframe on the tunnel inner wall, be equipped with coupling mechanism between two adjacent roof truss steelframes, coupling mechanism is equipped with adjusting part including the coupling assembling that is used for connecting the steelframe between two coupling assembling, and swing joint has spacing tight mechanism of support on the adjusting part.
The principle and the beneficial effects of the technical scheme are as follows: in the technical scheme, the steel frames are used for supporting in the early stage of the tunnel, and a connecting mechanism is arranged between every two adjacent steel frames in order to increase the overall stability of each steel frame. Because the different construction environment and the construction requirement of different tunnels cause the steelframe to erect different density, namely the distance between two adjacent steelframes is different, this technical scheme sets up coupling mechanism into regulation formula, and wherein adjusting part is used for adjusting coupling length of coupling mechanism for all can use under the condition of different steelframe intervals, increased the application scope of device. In addition, because the connecting mechanism is set to be adjustable, the limiting abutting mechanism is used for abutting and limiting the connecting mechanism, the stability of connection after adjustment is ensured, and the engineering quality is further improved.
This technical scheme is through setting coupling mechanism to the regulation formula, need not to carry out segmentation and welding at the job site to the reinforcing bar of connecting, and not only convenient operation does not relate to welding operation moreover in the whole process, has avoided producing harmful gas and influencing the problem of site operation personnel safety in the environment of tunnel relative sealed like this.
Further, coupling assembling is including dismantling the tighrening ring of connection on the steelframe, and equal rigid coupling has horizontal threaded rod on the tighrening ring, and adjusting part sets up between two adjacent threaded rods.
In this technical scheme, the tighrening ring is used for connecting the steelframe, provides the hookup point for adjusting part simultaneously.
Furthermore, the adjusting part comprises a thread cylinder, the inner wall of the thread cylinder is provided with two groups of internal threads with opposite rotation directions, and the threaded rod is connected in the thread cylinder in a threaded mode.
Among this technical scheme, a screw thread section of thick bamboo and threaded rod realize regulatory function jointly, when the distance between two tighrening rings need be adjusted with the distance between the two roof trusses of adaptation steelframe, rotate a screw thread section of thick bamboo, because the threaded rod is the rigid coupling on the tighrening ring, the position of threaded rod is relatively fixed, consequently, a screw thread section of thick bamboo can two relative threaded rod axial displacement rotating the in-process for the distance between two threaded rods increases, and then realizes the regulation of distance between the tighrening ring even. The distance between the two fastening rings can be accurately adjusted by rotating the threaded cylinder, and the adjusting terminal point is easy to control, so that the operation is convenient.
Further, the tighrening ring includes two semi-rings of mutual rotation connection, is equipped with the connecting piece between the one end that two semi-rings kept away from each other.
Among this technical scheme, through setting the tighrening ring to the form of the mutual lock of two semi-rings, through the regulation to connecting piece hookup location, can adjust the diameter of the tighrening ring that two semi-rings formed for the tighrening ring is applicable to the connection of the steelframe of different diameters, has further increased the application range of device, has realized the field assembly of tighrening ring moreover, need not to relate to welding operation, has further increased the security of construction.
Further, the outer wall of the threaded cylinder is provided with a vertical limiting groove, and the limiting abutting mechanism is connected in the limiting groove in a sliding mode.
The spacing groove on the screw thread section of thick bamboo among this technical scheme is used for providing the site of connecting for spacing tight mechanism that supports.
Furthermore, the limiting and abutting mechanism comprises a sliding connection assembly and an adjusting type abutting assembly.
After construction, due to the effect of stress inside the tunnel, the distance between two adjacent steel frames tends to change due to the change of the stress, and at the moment, the threaded cylinder tends to rotate. The limiting and abutting mechanism is used for limiting and fastening the position of the threaded cylinder after the position is adjusted, and the stability of steel frame erection density and steel frame support in the tunnel in the later period is guaranteed.
Furthermore, sliding connection subassembly includes the connecting plate, is equipped with the vertical slidingstrip of slidable connection in the spacing inslot on the connecting plate.
After adjusting the position between two steelframes through a screw thread section of thick bamboo among this technical scheme, the accessible realizes being connected of screw thread section of thick bamboo and spacing tight mechanism of supporting with the vertical sliding connection of draw runner in spacing inslot, convenient operation.
Furthermore, the tight subassembly is supported in regulation formula includes two support poles that articulate on the connecting plate, and two support poles are kept away from to articulate to have between the one end of connecting plate and are adjusted the pole.
Among this technical scheme, the connecting plate is used for supporting the pole that supports, and two poles that support move a section of thick bamboo with adjusting the pole and constitute stable triangular supports, and wherein adjust pole and tunnel inner wall laminating, guarantee two stability of adjusting the pole and opening the angle. Because the difference of construction environment, the position between connecting plate and tunnel is different, through adjusting the length of regulating lever, can realize the regulation to the open angle of tight pole for adjust the pole and can support tightly with the tunnel inner wall all the time, increased the application range of device.
Furthermore, a supporting plate is fixedly connected to one end, far away from the connecting plate, of the abutting rod.
The backup pad on the tight pole that supports among this technical scheme is used for supporting with ground, has shared the stress that supports the tight pole, improves the stability that supports and support.
Furthermore, both ends of the slide bar are fixedly connected with limit blocks.
In this technical scheme, the stopper at draw runner both ends plays spacing effect, avoids draw runner and spacing groove to break away from, guarantees the stability of connecting.
Drawings
Fig. 1 is a front view of a tunnel in an embodiment of the present invention;
FIG. 2 is a right side view of the steel frame of FIG. 1;
fig. 3 is a right side view of the position limiting and abutting mechanism in fig. 2.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: tunnel inner wall 1, ground tackle 2, steelframe 3, ground 4, tighrening ring 5, threaded rod 6, screw thread section of thick bamboo 7, connecting piece 8, spacing groove 9, connecting plate 10, draw runner 11, support tight pole 12, adjust pole 13, backup pad 14, stopper 15.
Example 1
Example 1 is substantially as shown in figure 1: longitudinal connection structure between tunnel preliminary bracing steelframe pin includes that a plurality of passes through anchorage device 2 riveting steelframe 3 on tunnel inner wall 1, is equipped with coupling mechanism between two adjacent pin steelframes 3, combines to show in fig. 2, and coupling mechanism includes the coupling assembling that is used for connecting steelframe 3, is equipped with adjusting part between two coupling assembling, and the last swing joint of adjusting part has spacing tight mechanism that supports.
Coupling assembling is including dismantling the tighrening ring 5 of connection on steelframe 3, and tighrening ring 5 includes the semi-ring that two mutual rotations are connected, is equipped with connecting piece 8 between the one end that two semi-rings kept away from each other, and connecting piece 8 in this embodiment is with the concrete connection mode of semi-ring: one of the ends of the half rings, which are far away from the mutual connection end, is provided with a threaded hole, the threaded hole is internally threaded with a locking stud, and the tail end of the locking stud is threaded with a nut.
Equal rigid coupling has horizontal threaded rod 6 on the semi-ring, and threaded rod 6 that two adjacent semi-rings are connected is just to setting up. The adjusting component comprises a thread cylinder 7, two groups of internal threads with opposite rotating directions are arranged on the inner wall of the thread cylinder 7, and two threaded rods 6 which are just opposite to each other are connected in the thread cylinder 7 in a threaded mode.
The specific implementation process is as follows: after the steel frames 3 are erected on the tunnel inner wall 1, a connection support needs to be provided between two adjacent steel frames 3 in order to increase the overall stability of the steel frames 3. Specifically, at first, keep away from each other two semi-rings and rotate for two semi-rings are opened, then wrap up two semi-rings on 3 outer walls of steelframe, and rotate two semi-rings in opposite directions, make two mutual locks of semi-ring form 5 covers of tighrening ring and establish the outer wall of steelframe 3, wear to establish the threaded hole of two semi-rings with the locking double-screw bolt, and establish the tail end at the locking double-screw bolt with the nut cover, according to the rotation amount of the diameter control nut of actual job site steelframe 3, realize being connected between tighrening ring 5 and the steelf.
Due to different construction environments and different construction requirements of different tunnels, the steel frames 3 have different support densities, that is, the distance between two adjacent steel frames 3 is different, and at this time, the distance between two fastening rings 5 needs to be adjusted to adapt to the distance between the two steel frames 3. When the distance between two steel frames 3 is large, the threaded cylinders 7 are rotated in the forward direction, the threaded rods 6 are fixedly connected to the fastening rings 5, and the positions of the threaded rods 6 are relatively fixed, so that the threaded cylinders 7 can axially move relative to the two threaded rods 6 in the rotating process, the two threaded rods 6 move towards two sides relative to the threaded cylinders 7, the distance between the two threaded rods 6 is increased, and the distance between the two fastening rings 5 is adjusted. When the distance between the two steel frames 3 is small, the threaded cylinders 7 are rotated in opposite directions, and the distance between the two threaded rods 6 is reduced, thereby realizing the adjustment of the distance between the fastening rings 5.
This technical scheme is through setting coupling mechanism to the regulation formula, need not to carry out segmentation and welding at the job site to the reinforcing bar of connecting, and not only convenient operation does not relate to welding operation moreover in the whole process, has avoided producing harmful gas and influencing the problem of site operation personnel safety in the environment of tunnel relative sealed like this.
Example 2
This embodiment differs from embodiment 1 only in that: the outer wall of a threaded cylinder 7 is provided with a vertical limiting groove 9, and the limiting and tightening mechanism comprises a sliding connection assembly and an adjusting and tightening assembly. As shown in fig. 3, the sliding connection assembly includes a vertical connection plate 10, a vertical slide bar 11 slidably connected in the limiting groove 9 is disposed on the connection plate 10, and the upper and lower ends of the slide bar 11 are fixedly connected with limiting blocks 15. The tight subassembly of adjusting includes that two articulate the pole 12 that supports on connecting plate 10, and two support pole 12 and keep away from between the one end of connecting plate 10 articulated have an adjusting lever 13, and adjusting lever 13 in this embodiment includes a vertical regulation section of thick bamboo, and a regulation section of thick bamboo female connection has two branches, and the one end that a regulation section of thick bamboo was kept away from to two branches articulates respectively on two poles 12 that support. The end of the tightening rod 12 away from the connecting plate 10 is fixedly connected with a support plate 14.
After the distance between two tighrening rings 5 is adjusted, will spacing to support tight subassembly card to establish between a screw thread section of thick bamboo 7 and tunnel inner wall 1, realize the fixed of a screw thread section of thick bamboo 7 position, avoid it to receive the inside stress in tunnel and rotate. Specifically, before installation, the opening angles of the two tightening rods 12 are adjusted according to the distance between the threaded cylinder 7 and the tunnel inner wall 1. When the distance between the tunnel inner wall 1 and the thread cylinder 7 is large, the adjusting cylinder is rotated in the forward direction, so that the two support rods move close to each other along the adjusting cylinder, the length of the adjusting rod 13 is reduced, the opening angle of the two abutting rods 12 is reduced, and the height (height is the distance from the thread cylinder 7 to the tunnel inner wall 1) of a triangular supporting structure which is formed by the adjusting rod 13 and the two abutting rods 12 and takes the adjusting rod 13 as a bottom edge is increased.
The slide bar 11 on the connecting plate 10 is inserted into the limiting groove 9, so that the connecting plate 10 vertically slides along the threaded cylinder 7 until the supporting plate 14 at the lower end of the abutting rod 12 abuts against the ground 4, at the moment, the adjusting rod 13 is attached to the inner wall 1 of the tunnel, and the two abutting rods 12 and the adjusting rod 13 form a stable triangular support.
After construction, due to the internal stress of the tunnel, the distance between two adjacent steel frames 3 tends to change due to the change of the stress, and at the moment, the screw cylinder 7 tends to rotate. The limiting abutting mechanism is used for limiting and fastening the position of the thread cylinder 7 after the position is adjusted, and the stability of later-stage tunnel internal steel frame 3 erection density and steel frame 3 support is guaranteed.
The above description is only an example of the present invention, and the detailed technical solutions and/or characteristics known in the solutions are not described too much here. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. Longitudinal connection structure between tunnel preliminary bracing steelframe pin includes the steelframe of a plurality of riveting on the tunnel inner wall, is equipped with coupling mechanism between two adjacent pin steelframes, its characterized in that: the connecting mechanism comprises connecting components for connecting the steel frame, adjusting components are arranged between the two connecting components, and the adjusting components are movably connected with limiting and abutting mechanisms.
2. The longitudinal connecting structure between roof trusses of a tunnel preliminary bracing steel frame according to claim 1, characterized in that: coupling assembling is including dismantling the tighrening ring of connection on the steelframe, and equal rigid coupling has horizontal threaded rod on the tighrening ring, adjusting part sets up between two adjacent threaded rods.
3. The longitudinal connecting structure between roof trusses of a tunnel preliminary bracing steel frame according to claim 2, characterized in that: the adjusting component comprises a threaded cylinder, two groups of internal threads with opposite rotating directions are arranged on the inner wall of the threaded cylinder, and the threaded rod is connected in the threaded cylinder in a threaded mode.
4. The longitudinal connecting structure between roof trusses of a tunnel preliminary bracing steel frame according to claim 3, characterized in that: the fastening ring comprises two semi-rings which are rotationally connected with each other, and a connecting piece is arranged between one ends, far away from each other, of the two semi-rings.
5. The longitudinal connecting structure between roof trusses of tunnel primary support steel frames according to claim 4, characterized in that: the outer wall of the threaded cylinder is provided with a vertical limiting groove, and the limiting abutting mechanism is connected in the limiting groove in a sliding mode.
6. The longitudinal connecting structure between roof trusses of tunnel primary support steel frames according to claim 5, characterized in that: the limiting and abutting mechanism comprises a sliding connection assembly and an adjusting type abutting assembly.
7. The longitudinal connecting structure between roof trusses of a tunnel primary support steel frame according to claim 6, characterized in that: sliding connection subassembly includes the connecting plate, is equipped with the vertical slidingstrip of slidable connection in the spacing inslot on the connecting plate.
8. The longitudinal connecting structure between roof trusses of a tunnel preliminary bracing steel frame according to claim 7, characterized in that: the adjusting type abutting assembly comprises two abutting rods hinged to the connecting plate, and an adjusting rod is hinged between one ends, far away from the connecting plate, of the two abutting rods.
9. The longitudinal connecting structure between roof trusses of a tunnel primary support steel frame according to claim 8, characterized in that: and a supporting plate is fixedly connected to one end, far away from the connecting plate, of the abutting rod.
10. The longitudinal connecting structure between roof trusses of a tunnel preliminary bracing steel frame according to claim 9, characterized in that: and two ends of the slide bar are fixedly connected with limiting blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921414364.9U CN210370708U (en) | 2019-08-28 | 2019-08-28 | Longitudinal connecting structure between tunnel primary support steel frame trusses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921414364.9U CN210370708U (en) | 2019-08-28 | 2019-08-28 | Longitudinal connecting structure between tunnel primary support steel frame trusses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210370708U true CN210370708U (en) | 2020-04-21 |
Family
ID=70253178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921414364.9U Active CN210370708U (en) | 2019-08-28 | 2019-08-28 | Longitudinal connecting structure between tunnel primary support steel frame trusses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210370708U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594234A (en) * | 2020-07-10 | 2020-08-28 | 北京享云智汇科技有限公司 | Steel frame joint suitable for large-deformation highway tunnel |
| CN111706368A (en) * | 2020-06-30 | 2020-09-25 | 中铁二院工程集团有限责任公司 | Tunnel inner section steel frame longitudinal connection structure and construction method |
-
2019
- 2019-08-28 CN CN201921414364.9U patent/CN210370708U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706368A (en) * | 2020-06-30 | 2020-09-25 | 中铁二院工程集团有限责任公司 | Tunnel inner section steel frame longitudinal connection structure and construction method |
| CN111594234A (en) * | 2020-07-10 | 2020-08-28 | 北京享云智汇科技有限公司 | Steel frame joint suitable for large-deformation highway tunnel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210370708U (en) | Longitudinal connecting structure between tunnel primary support steel frame trusses | |
| CN108868170B (en) | Assembled building wallboard support and mounting method thereof | |
| CN211622592U (en) | Template assembly for construction of deformation joint of building structure | |
| CN109403469A (en) | Steel Reinforced Concrete Beam-column Joints steel construction reinforced structure | |
| WO2019025505A1 (en) | Foundation for a structure | |
| CN109488342A (en) | A kind of hoop shell perfusion type flexibility for roadway support, which allows, pressure lining cutting and applies method | |
| CN110258956A (en) | Assembled steel-mixes the vertical main reinforcement connection structure and its installation method of component | |
| CN108951847A (en) | A kind of Precast Concrete Frame system and its construction method based on UHPC | |
| CN207032856U (en) | A kind of external wall | |
| CN108978492A (en) | Simply supported non-uniform bridge hogging moment steel Shu Zhangla connector and bridge structure | |
| CN210685393U (en) | Eave cantilever concrete structure formwork support | |
| CN209653415U (en) | A kind of reinforcement type cable-stayed type orientation adjustable cantilever | |
| CN105804418A (en) | Prefabricated wallboard fixed supporting system and construction method | |
| CN205531375U (en) | A structure for last prestress application of steel frame | |
| CN205276854U (en) | A fastener for connecting steel pipe | |
| CN110439262A (en) | Hoistway formwork system and construction method | |
| CN208884561U (en) | A kind of steel construction tower mast sill anchor spreading sleeve screw structure | |
| CN107419897A (en) | A kind of reinforcing mould of windowsill coping formwork | |
| CN112663932A (en) | Outer wall protection network is used in high-rise building construction | |
| CN209260896U (en) | Prefabricated Reinforced Concrete Composite Beams | |
| EP0320855B1 (en) | Wrecking arrangement for chimneys, particularly for convergent chimneys | |
| CN219219792U (en) | Frame post template reinforced structure | |
| CN212642182U (en) | Prefabricated formula reinforced structure of building steel construction | |
| CN216552934U (en) | Semi-closed assembled safety protection shed of tower crane | |
| EP3418473A1 (en) | Mechanical coupling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |