CN114000712A - Large-span pipe truss structure downwarping deformation air slide rail system - Google Patents
Large-span pipe truss structure downwarping deformation air slide rail system Download PDFInfo
- Publication number
- CN114000712A CN114000712A CN202111403226.2A CN202111403226A CN114000712A CN 114000712 A CN114000712 A CN 114000712A CN 202111403226 A CN202111403226 A CN 202111403226A CN 114000712 A CN114000712 A CN 114000712A
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- China
- Prior art keywords
- pipe truss
- slide rail
- pushing device
- plate
- sliding
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- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 230000003014 reinforcing effect Effects 0.000 claims description 15
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 19
- 238000009434 installation Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/162—Handles to carry construction blocks
Abstract
The invention provides a large-span pipe truss structure downwarping deformation aerial slide rail system which comprises two aerial slide rail devices arranged in parallel along a preset direction, wherein the middle part of a pipe truss can be connected to a high-altitude support jig frame in a sliding manner along the preset direction through the two aerial slide rail devices. The invention discloses a downwarping deformation air slide rail system of a large-span pipe truss structure, which solves the problems of interference of a string stretching cable of a string stretching pipe truss and a construction jig and the technical problem of downwarping deformation control of an oversized pipe truss.
Description
Technical Field
The invention relates to the field of large-span pipe truss construction, in particular to a downwarping deformation aerial slide rail system of a large-span pipe truss structure.
Background
The super-large span chord pipe truss adopts sliding construction, and because the span chord cable and the pipe truss are mutually stressed, the pipe truss can not work independently due to the lack of the action of the span chord cable, so that the sliding construction of the span chord pipe truss is difficult. On one hand, if the pipe truss is directly tensioned by the open string cables and unloaded after being folded on the construction jig, the integral stress of the open string pipe truss is not a problem, but the presence of the open string cables interferes with the jig of the support truss, and the sliding construction of the open string pipe truss is influenced. On the other hand, if the pipe truss is directly unloaded after being folded on the construction jig, the pipe truss cannot play a whole stress role due to the lack of the tensioning effect of the string cables, and the downwarping deformation of the pipe truss is huge and cannot be controlled. Therefore, the problem of interference between the string-opening cable of the string-opening pipe truss and the construction jig is a great technical problem of sliding construction of the string-opening pipe truss, and the down-warping deformation control of the oversized pipe-spanning truss is also a great technical problem.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a downwarping deformation air slide rail system of a large-span pipe truss structure, which solves the problems of interference of a string stretching cable of a string stretching pipe truss and a construction jig and the technical problem of downwarping deformation control of an oversized pipe-spanning truss.
In order to achieve the purpose, the invention provides a large-span pipe truss structure downwarping deformation aerial slide rail system which comprises two aerial slide rail devices arranged in parallel along a preset direction, wherein the middle part of a pipe truss can be connected to an aerial support jig frame in a sliding manner along the preset direction through the two aerial slide rail devices.
Preferably, the aerial slide rail device comprises an H-shaped steel beam, a sliding rail and a pushing device; the H-shaped steel beam is welded on the high-altitude supporting jig; the sliding track adopts a steel rail, and two sides of the bottom of the steel rail are respectively fixedly pressed between two pressing plates welded on the H-shaped steel beam and the H-shaped steel beam; a lubricating layer is arranged on the top surface of the sliding rail; the pushing device can be arranged on the sliding track in a sliding manner along the sliding track; the pipe truss is detachably connected to the pushing device.
Preferably, the pushing device comprises a pushing device body, a sliding boot plate, two limiting clamping plates and at least one connecting plate; the upper part of the first side of the pushing device body is fixedly connected with an ear plate welded on the pipe truss in a threaded manner through a bolt; the upper part of the second side of the pushing device body is connected with the connecting plate; the bottom of the pushing device body is connected with the sliding shoe plate, the front end of the sliding shoe plate forms a smooth chamfer, the two sides of the rear end of the sliding shoe plate are provided with the limiting clamping plates, and the limiting clamping plates are arranged on the two sides of the top of the sliding track.
Preferably, the pushing device further comprises a reinforcing plate and at least one reinforcing rib plate; the reinforcing plate is connected to the first side of the pushing device body and supported below the ear plate of the pipe truss; the reinforcing rib plate is connected between the reinforcing plate and the pushing device body.
Preferably, the pushing device is in transmission connection with a pushing crawler through the connecting plate.
Preferably, two sides of the upper surface of the H-shaped steel beam are respectively connected with a limiting device; the limiting device limits the pushing device body.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the pipe truss is arranged on the high-altitude supporting jig frame, two aerial slide rail devices are additionally arranged, the pipe truss is convenient to transfer to the outer side of the construction jig frame after being folded, installation of the truss brace rod and the tension chord cable is convenient, tensioning of the whole tension chord cable truss and unloading of the main truss are also very beneficial, unreasonable initial installation stress is almost not generated, the tensioning process of the whole tension chord truss tension cable is the unloading process of the main truss, and after the two aerial slide rail devices are additionally arranged on the jig frame, deformation of the ultra-large span pipe truss in the whole construction process can be effectively controlled. Therefore, the problem of interference of a string stretching cable of the string stretching pipe truss and a construction jig and the technical problem of down-warping deformation control of the oversized pipe-spanning truss can be solved by adopting the large-span pipe truss structure down-warping deformation air slide rail device. The large-span pipe truss structure is adopted to realize the downwarp deformation of the air slide rail device, convenience is brought to sliding, tensioning and installation construction, the construction period is saved, and the cost is reduced.
Drawings
Fig. 1 is a schematic structural view of a down-warp deformation aerial slide rail system of a long-span pipe truss structure according to an embodiment of the invention;
FIG. 2 is a schematic structural diagram of an aerial slide rail apparatus according to an embodiment of the present invention;
FIG. 3 is a vertical, partial cross-sectional view of an aerial slide assembly according to an embodiment of the present invention;
FIG. 4 is a schematic view of a connection structure of a position limiting device according to an embodiment of the present invention;
fig. 5 is a vertical sectional view of a spacing device according to an embodiment of the present invention.
Detailed Description
The following description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings of fig. 1 to 5, and will be described in detail to better understand the functions and features of the present invention.
Referring to fig. 1 to 4, a large-span pipe truss structure downwarp deformation aerial slide rail system according to an embodiment of the present invention includes two aerial slide rail devices 1 arranged in parallel along a predetermined direction, and a middle portion of a pipe truss 3 is slidably connected to an aerial support jig 2 along the predetermined direction through the two aerial slide rail devices 1.
The air slide rail device 1 comprises an H-shaped steel beam 11, a sliding rail 12 and a pushing device 13; the H-shaped steel beam 11 is welded on the high-altitude supporting jig frame 2; the sliding rail 12 is a finished steel rail, and two sides of the bottom of the steel rail are respectively fixedly pressed between two pressing plates 14 welded to the H-shaped steel beam 11 and the H-shaped steel beam 11; a lubricating layer (special grease for coating lubrication) is arranged on the top surface of the sliding rail 12; the pushing device 13 can be arranged on the sliding track 12 along the sliding track 12 in a sliding manner; the pipe truss 3 is detachably connected to the thruster 13.
The pushing device 13 comprises a pushing device body 131, a sliding shoe plate 132, two limiting clamping plates 133 and at least one connecting plate 136; the upper part of the first side of the pushing device body 131 is fixed with an ear plate 31 welded on the pipe truss 3 through a high-strength bolt 15 in a threaded manner; the bottom of the pushing device body 131 is provided with a sliding shoe plate 132, the front end of the sliding shoe plate 132 is subjected to round-corner smoothing treatment to form a smooth chamfer, and the phenomenon of rail clamping at the joint of two rails possibly existing in a certain height difference in the field rail installation and sliding processes can be prevented; limiting clamping plates 133 are arranged on two sides of the rear end of the sliding shoe plate 132, and the limiting clamping plates 133 are arranged on two sides of the top of the sliding rail 12.
The pushing device 13 further comprises a reinforcing plate 134 and at least one reinforcing rib plate 135; the reinforcing plate 134 is connected to the first side of the thruster body 131 and supported below the ear plate 31 of the pipe truss 3; the reinforcing rib 135 is connected between the reinforcing plate 134 and the pusher body 131.
The pushing device 13 is in transmission connection with a pushing crawler through a connecting plate 136.
Two sides of the upper surface of the H-shaped steel beam 11 are respectively connected with a limiting device 16; the limiting device 16 limits the pushing device body 131 to prevent the pushing device body 131 from slipping and separating from the aerial sliding track 12.
In the large-span pipe truss structure downwarping deformation air slide rail system provided by the embodiment of the invention, in order to control the installation deformation of the ropeless pipe truss 3, two air slide rail devices 1 are arranged in the central area of the pipe truss 3 as temporary supporting points, and the principle of setting the positions of the air slide rail devices is to enable the pipe truss 3 in the installation state to be stressed uniformly as far as possible. Generally, the installation is carried out in the region of the span 1/3-1/4 of the pipe truss 3 according to the conditions permitted in the field.
The pipe truss 3 is arranged on the high-altitude supporting jig frame 2, the two air slide rail devices 1 are additionally arranged, so that the pipe truss 3 is favorably transferred to the outer side of the construction jig frame after being folded, the installation of a truss stay bar and a string cable is convenient, the tensioning of the whole string cable truss and the unloading of the main truss are also very favorable, unreasonable initial installation stress is almost not existed, the tensioning process of the whole string cable truss is the unloading process of the main truss, and after the two air slide rail devices 1 are additionally arranged on the jig frame, the deformation of the oversized pipe-spanning truss 3 in the whole construction process can be effectively controlled. And the installation and construction of the pipe truss brace rod and the stretching chord cable, the stretching of the inhaul cable and the unloading of the main truss are facilitated, the site construction is facilitated, the downwarping deformation can be controlled, and the device is safe, reliable and high in efficiency.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (6)
1. A large-span pipe truss structure downwarping deformation aerial slide rail system is characterized by comprising two aerial slide rail devices which are arranged in parallel along a preset direction, and the middle part of a pipe truss can be connected to a high-altitude supporting jig frame in a sliding mode along the preset direction through the two aerial slide rail devices.
2. The large-span pipe truss structure downwarp deformation aerial slide rail system of claim 1, wherein the aerial slide rail device comprises an H-beam, a glide track and a thruster; the H-shaped steel beam is welded on the high-altitude supporting jig; the sliding track adopts a steel rail, and two sides of the bottom of the steel rail are respectively fixedly pressed between two pressing plates welded on the H-shaped steel beam and the H-shaped steel beam; a lubricating layer is arranged on the top surface of the sliding rail; the pushing device can be arranged on the sliding track in a sliding manner along the sliding track; the pipe truss is detachably connected to the pushing device.
3. The large-span pipe truss structure downwarp deformation aerial slide rail system of claim 2, wherein the thrustor comprises a thrustor body, a sliding shoe plate, two limiting clamping plates and at least one connecting plate; the upper part of the first side of the pushing device body is fixedly connected with an ear plate welded on the pipe truss in a threaded manner through a bolt; the upper part of the second side of the pushing device body is connected with the connecting plate; the bottom of the pushing device body is connected with the sliding shoe plate, the front end of the sliding shoe plate forms a smooth chamfer, the two sides of the rear end of the sliding shoe plate are provided with the limiting clamping plates, and the limiting clamping plates are arranged on the two sides of the top of the sliding track.
4. The large-span pipe truss structure downwarping deformation aerial slide rail system of claim 3, wherein the thrustor further comprises a reinforcing plate and at least one reinforcing rib plate; the reinforcing plate is connected to the first side of the pushing device body and supported below the ear plate of the pipe truss; the reinforcing rib plate is connected between the reinforcing plate and the pushing device body.
5. The large-span pipe truss structure downwarp deformation aerial slide rail system of claim 4, wherein the thrusting device is in driving connection with a thrusting crawler through the connecting plate.
6. The large-span pipe truss structure downwarp deformation aerial slide rail system of claim 5, wherein two sides of the upper surface of the H-shaped steel beam are respectively connected with a limiting device; the limiting device limits the pushing device body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111403226.2A CN114000712A (en) | 2021-11-24 | 2021-11-24 | Large-span pipe truss structure downwarping deformation air slide rail system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111403226.2A CN114000712A (en) | 2021-11-24 | 2021-11-24 | Large-span pipe truss structure downwarping deformation air slide rail system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114000712A true CN114000712A (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111403226.2A Pending CN114000712A (en) | 2021-11-24 | 2021-11-24 | Large-span pipe truss structure downwarping deformation air slide rail system |
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| Country | Link |
|---|---|
| CN (1) | CN114000712A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116025161A (en) * | 2022-12-26 | 2023-04-28 | 深圳市路桥建设集团有限公司 | Rail clamping counterforce seat for pushing sliding rail and sliding rail pushing system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1287729C (en) * | 1986-03-13 | 1991-08-20 | Bruno George Gatzka | Building truss |
| CN101029518A (en) * | 2007-03-23 | 2007-09-05 | 北京城建集团有限责任公司 | Construction of large-span two-way string-tensioning steel house frame |
| CN101033636A (en) * | 2007-03-23 | 2007-09-12 | 北京城建集团有限责任公司 | Large span bidirectional string stretching girders rope accumulation slippage construction method |
| CN106013601A (en) * | 2016-06-24 | 2016-10-12 | 宝钢钢构有限公司 | Large-span roof steel truss structure and accumulative slipping construction technology |
| CN213683267U (en) * | 2020-10-27 | 2021-07-13 | 上海宝冶工程技术有限公司 | Large-span arched pipe truss structure pushing and sliding auxiliary device |
| CN113668874A (en) * | 2021-08-24 | 2021-11-19 | 中国建筑第二工程局有限公司 | Segmented sliding structure of string steel truss and construction method |
-
2021
- 2021-11-24 CN CN202111403226.2A patent/CN114000712A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1287729C (en) * | 1986-03-13 | 1991-08-20 | Bruno George Gatzka | Building truss |
| CN101029518A (en) * | 2007-03-23 | 2007-09-05 | 北京城建集团有限责任公司 | Construction of large-span two-way string-tensioning steel house frame |
| CN101033636A (en) * | 2007-03-23 | 2007-09-12 | 北京城建集团有限责任公司 | Large span bidirectional string stretching girders rope accumulation slippage construction method |
| CN106013601A (en) * | 2016-06-24 | 2016-10-12 | 宝钢钢构有限公司 | Large-span roof steel truss structure and accumulative slipping construction technology |
| CN213683267U (en) * | 2020-10-27 | 2021-07-13 | 上海宝冶工程技术有限公司 | Large-span arched pipe truss structure pushing and sliding auxiliary device |
| CN113668874A (en) * | 2021-08-24 | 2021-11-19 | 中国建筑第二工程局有限公司 | Segmented sliding structure of string steel truss and construction method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116025161A (en) * | 2022-12-26 | 2023-04-28 | 深圳市路桥建设集团有限公司 | Rail clamping counterforce seat for pushing sliding rail and sliding rail pushing system |
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Application publication date: 20220201 |
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| RJ01 | Rejection of invention patent application after publication |