CN115370021A - Permanent support for annular curved surface net rack sliding construction and replacement method - Google Patents
Permanent support for annular curved surface net rack sliding construction and replacement method Download PDFInfo
- Publication number
- CN115370021A CN115370021A CN202210888720.0A CN202210888720A CN115370021A CN 115370021 A CN115370021 A CN 115370021A CN 202210888720 A CN202210888720 A CN 202210888720A CN 115370021 A CN115370021 A CN 115370021A
- Authority
- CN
- China
- Prior art keywords
- support
- permanent
- chuck
- net rack
- sliding
- 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.)
- Granted
Links
- 238000010276 construction Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims description 18
- 210000000078 claw Anatomy 0.000 claims description 16
- 238000003466 welding Methods 0.000 claims description 16
- 230000001681 protective effect Effects 0.000 claims description 8
- 230000006978 adaptation Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 230000000670 limiting effect Effects 0.000 description 14
- 230000008093 supporting effect Effects 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/388—Separate connecting elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B7/00—Roofs; Roof construction with regard to insulation
-
- 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
-
- 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
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention provides a permanent support for slip construction of an annular curved net rack, which comprises a chuck fixed on a rack body and an upper support fixed on a net rack fulcrum, wherein the upper support is arranged on the upper side of the chuck and can vertically move relative to the chuck; the minimum distance between the upper support and the upper side and the lower side of the chuck is less than the height of the sliding shoe by 2-3cm. The invention has the effect of improving the problems that in the prior art, the skid shoes are possibly inconvenient to replace with the permanent supports because the permanent supports are fixed in height and the skid shoes are unloaded in sequence, and the integral stress uniformity of the annular curved surface net rack is not high, so that the integral unloading stability is low.
Description
Technical Field
The invention relates to the technical field of curved surface net rack construction, in particular to a permanent support for annular curved surface net rack sliding construction and a replacement method.
Background
The curved surface net rack is one of novel roof structures, is a kind of common high order hyperstatic structure system in the current building field, and on the basis that changes conventional plane frame structure stress state, it has further strengthened its load-carrying capacity itself, has longspan, curvature big, high superelevation, the wholeness is strong and be arched characteristics, therefore the roof of buildings such as gymnasium, movie & TV institute, exhibition hall, waiting room and hangar is used as often.
A football field project in China is an annular curved surface net rack (one of the curved surface net racks). In the process of constructing the annular curved surface net rack, a plurality of sliding tracks are arranged on a rack body (a concrete pile), a plurality of sliding shoes are connected on the tracks in a sliding manner, and the sliding shoes are used as supporting structures of a plurality of nodes of the annular curved surface net rack; then, the annular curved surface net rack slides in place by utilizing the sliding action of the sliding shoes; after the sliding shoe slides in place, the sliding shoe needs to be cut, unloaded, replaced and welded into a permanent support so as to keep the structure of the net rack stable.
Generally, in the process of cutting and unloading the sliding shoe and replacing the sliding shoe with a permanent support, the sliding shoe is sequentially unloaded by cutting the sliding shoe from a design line and immediately replacing and welding the sliding shoe with the permanent support, but because the height and the structure of the permanent support are fixed, and all parts of the annular curved-surface net rack are unevenly stressed, the stress uniformity of the parts, supported by the sliding shoe, of the annular curved-surface net rack and the parts, not supported by the sliding shoe, of the annular curved-surface net rack is not high due to the limitation of the height of the permanent support in the sequential replacement process, the situation that gaps are reduced after local unloading and the permanent support is inconvenient to plug in is possible to exist, and the deformation of the net rack structure is relatively large after the sliding shoe is removed, so that the unloading stability of the annular curved-surface net rack is relatively low compared with the design value.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a permanent support for the sliding construction of an annular curved surface net rack and a replacement method, which can solve the problems that in the prior art, the permanent support is fixed in height, when a mode of sequentially unloading sliding shoes is adopted, the sliding shoes are possibly inconvenient to replace by the permanent support, and the integral stress uniformity of the annular curved surface net rack is not high, so that the integral unloading stability is low.
On one hand, according to the embodiment of the invention, the permanent support for the slippage construction of the annular curved net rack comprises a chuck fixed on a rack body and an upper support fixed on a net rack fulcrum, wherein the upper support is arranged on the upper side of the chuck and can vertically move relative to the chuck; the minimum distance between the upper support and the upper side and the lower side of the chuck is less than the height of the sliding shoe by 2-3cm.
By adopting the technical scheme, when the slipper is replaced by the permanent support, because the minimum distance between the upper side and the lower side of the chuck and the upper support is smaller than the height of the slipper 2-3cm, the permanent support can be easily plugged into a replacement point, meanwhile, in the replacement process, the distance between the upper side and the lower side of the chuck and the lower side of the upper support can be changed, so that the permanent support can contact and support the net rack pivot, the problem that the stability of integral unloading is low due to the fact that the permanent support is highly fixed in the prior art and the slipper is inconvenient to replace by the permanent support when a plurality of slippers are replaced is solved, the integral stress uniformity of the annular curved surface net rack is not high, and the applicability is improved through the adjustment of the height of the permanent support.
Preferably, the clamping jaws of the chuck are close to the upper support, and one side of the clamping jaws close to the upper support is an inclined plane; the upper bracket comprises a base plate and a plurality of connecting claws, the base plate is fixed on the net rack pivot and is a plurality of connecting claws are in one-to-one correspondence to a plurality of claws, and the connecting claws are provided with guide surfaces matched with inclined planes.
Through adopting above-mentioned technical scheme, when the interval of both sides about the permanent support of adjustment, make its inside driving piece rotate through the spanner, drive a plurality of jack catchs of chuck along chuck radial movement, through the cooperation each other of inclined plane and guide face for connect the claw and move on vertical direction, make the upper bracket for the chuck move on vertical direction.
Preferably, a limiting groove is formed in the outer side of the chuck, a limiting rod is fixed to the seat plate, the limiting rod extends vertically, and the lower end of the limiting rod is matched and connected to the limiting groove in a sliding mode.
Through adopting above-mentioned technical scheme, when the upper bracket carried out the removal of vertical direction for the chuck, the gag lever post was carried out upwards or decurrent slip in the spacing groove, and simultaneously, the gag lever post is spacing in the spacing groove to prevent that the upper bracket from moving on the horizontal direction.
Preferably, the seat board is fixed with the lag, the upper end of lag is fixed in the seat board, and the lower extreme cover is located the chuck lower extreme.
Through adopting above-mentioned technical scheme, the connection structure cover between the lag covers chuck upper end and chuck and the upper bracket is established, protects to prolong its life relatively.
Preferably, the lower end of the protective sleeve is provided with an avoiding groove for a wrench to extend into and indirectly drive the plurality of clamping jaws to slide in the opposite direction or in the opposite direction.
Through adopting above-mentioned technical scheme, dodge the groove through the setting, form and dodge the effect to the spanner stretches into and drives the driving piece of chuck and rotates.
On the other hand, according to the embodiment of the invention, the method for replacing the permanent support for the annular curved surface net rack sliding construction is also provided, and comprises the following steps:
s1, after the annular curved surface net rack slides in place, inserting permanent supports outside a sliding track one by one in a clockwise or anticlockwise direction;
s2, determining a starting point, and unloading the sliding shoes sliding on the sliding tracks at the two ends one by one in a clockwise or anticlockwise direction;
s3, from the starting point in the S2, the permanent supports are in one-to-one correspondence and are sequentially plugged into the mounting points of the sliding shoes in the S2;
s4, welding and fixing the permanent supports in the S1 and the S3;
and S5, unloading the sliding shoes sliding on the middle sliding rail.
Through adopting above-mentioned technical scheme, when carrying out the change of permanent support, earlier fill in permanent support outside the track that slides in, can form the supporting role to the annular curved surface rack when follow-up when demolising the piston shoes on the track that slides, simultaneously, after welding permanent support, carry out the uninstallation of middle orbital piston shoes that slides again, thereby guarantee the whole atress homogeneity and the steadiness of the annular curved surface rack when follow-up when carrying out the uninstallation of piston shoes, pin spatial structure's physique characteristic in advance, make the unloading of middle support dismantle that the post-structure configuration diminishes, the amount of deflection is little, the structure is firm.
Preferably, when the permanent support is inserted in steps S1 and S3, the distance between the chuck and the upper and lower sides of the upper support is minimum.
By adopting the technical scheme, at the moment, the minimum distance between the upper side and the lower side of the chuck and the upper support is smaller than the height of the sliding shoe by 2-3cm, so that the permanent support can be conveniently plugged in, and the condition that the sliding shoe is inconvenient to replace into the permanent support is improved.
Preferably, after the permanent support is plugged in the step S1, the height of the permanent support is increased, so that the upper support abuts against the net rack fulcrum; and the starting point in step S3 is the mounting point adjacent to the plugged permanent seat.
By adopting the technical scheme, when the step S1 is carried out, the height of the plugged permanent supports is increased, so that stable support for the annular curved surface net rack is formed by the permanent supports, and meanwhile, the permanent supports are uniformly distributed on the annular curved surface net rack to form uniform support effect for the annular curved surface net rack, thereby solving the problem that the integral stress uniformity of the annular curved surface net rack is not high, so that the integral unloading stability is low in the prior art; furthermore, when the step S3 is carried out, the smooth plugging of the permanent support can be ensured from the adjacent mounting points of the permanent support plugged and adjusted with the height in the step S1, the possibility that the permanent support cannot be plugged subsequently is reduced, and the stability of the support is improved step by step.
Preferably, when welding is performed in step S4, the welding is performed symmetrically in a clockwise or counterclockwise direction from the starting point and the diagonal point determined in step S2.
By adopting the technical scheme, the position of the permanent support can be relatively adjusted again before welding; during welding, the mode of diagonal welding can ensure the uniform stress and stability of the annular curved surface net rack.
Preferably, when the unloading work of the sliding shoes in the step S5 is performed, the multistage unloading is performed from two sides of the arched support group to the middle highest point one by one, and the middle dismantling of the temporary support columns of the annular curved net rack is completed after the unloading amount reaches the designed deflection value.
By adopting the technical scheme, after a plurality of permanent supports are welded and finished and the uniform and stable support for the annular curved surface net rack is formed, the annular curved surface net rack structure is stable, and at the moment, the unloading of the sliding shoes and the temporary support columns on the middle sliding track can be finished from two ends to the middle.
In summary, the invention includes at least one of the following beneficial technical effects:
the permanent support comprises a chuck and an upper support, when the slipper is replaced by the permanent support, the minimum distance between the upper side and the lower side of the chuck and the upper side of the upper support is less than 2-3cm of the height of the slipper, so that the permanent support can be easily plugged into a replacement point, and meanwhile, in the replacement process, the distance between the upper side and the lower side of the chuck and the upper side of the upper support can be changed through the vertical sliding of the upper support relative to the chuck, so that the permanent support can contact a net rack fulcrum and can play a role in forming and supporting, and the situation that the slipper is inconvenient to replace by the permanent support due to the fact that the height of the permanent support is fixed in the prior art is solved; in the process of replacing the sliding shoes, permanent supports outside the sliding tracks are firstly plugged in, the height of the permanent supports is adjusted, the supporting effect of an annular curved surface net rack during subsequent removal of the sliding shoes on the sliding tracks can be achieved, meanwhile, after the permanent supports are welded, the sliding shoes of the middle sliding tracks are unloaded, the net rack is evenly and stably unloaded through the measures of stage division, step division, classification and the like, the problem that the integral stress uniformity is not high when the annular curved surface net rack unloads the sliding shoes and replaces the permanent supports is solved, and the integral unloading stability is low is caused.
Drawings
FIG. 1 is a schematic view of the annular arrangement of permanent supports of an embodiment of the invention and showing the arrangement with a slip track;
FIG. 2 is a schematic view of an installation of an embodiment of the present invention, showing primarily the replacement of the slipper with a permanent support;
FIG. 3 is a schematic view of a permanent support according to an embodiment of the present invention, partially in section;
FIG. 4 is a schematic view of the supporting stage unloading on the middle sliding rail in the embodiment of the invention, which is a schematic view of the first-stage unloading amount, the second-stage unloading amount and the third-stage unloading amount from top to bottom;
FIG. 5 is a schematic view of the construction of the present invention.
In the above drawings: 1. a frame body; 2. a net rack fulcrum; 3. a slipper; 4. a chuck; 41. a claw; 411. a bevel; 42. a limiting groove; 5. an upper support; 51. a seat plate; 511. a limiting rod; 52. a connecting claw; 521. a guide surface; 53. a protective sleeve; 531. an avoidance groove; 6. an annular curved surface net rack; 7. a sliding track; 8. temporary support post.
Detailed Description
The invention will be further described with reference to the accompanying figures 1-5.
Referring to fig. 1 to 4, in one aspect, an embodiment of the present invention provides a permanent support for slip construction of an annular curved grid, including a chuck 4 and an upper support 5; the chuck 4 can adopt the existing three-jaw chuck, four-jaw chuck and the like, the chuck body of the chuck is welded on the frame body 1, the jaws 41 of the chuck are positioned at the upper side of the chuck body (the side of the chuck body departing from the frame body 1), the upper side surfaces of the jaws 41 are inclined surfaces 411, and when a driving piece in the chuck body is driven by a wrench, the jaws 41 can be indirectly driven to move along the radial direction of the chuck body; a plurality of limiting grooves 42 are further formed in the outer side of the chuck body of the chuck 4, and the limiting grooves 42 penetrate through the upper side of the chuck body upwards.
The upper support 5 is arranged on the upper side of the chuck 4 and comprises a seat plate 51 and a plurality of connecting claws 52, and the seat plate 51 is welded on the net rack pivot point 2; the plurality of coupling claws 52 correspond to the plurality of pawls 41 one by one, and the coupling claws 52 are provided with guide surfaces 521, the guide surfaces 521 cooperating with the inclined surfaces 411 to achieve the movement of the upper bracket 5 in the vertical direction with respect to the chuck 4 by the movement of the pawls 41 in the horizontal direction. In the embodiment of the present invention, the seat plate 51 is fixed with a limiting rod 511, and the limiting rod 511 extends vertically and has a lower end adapted and slidably connected to the limiting groove 42, so as to prevent the upper support 5 from moving in the horizontal direction, thereby forming a limiting effect.
During construction, when changing piston shoe 3 for permanent support, fill in the mounting point with permanent support earlier for chuck 4 sets up on support body 1, then utilize the spanner to drive the driving piece in the chuck 4, move on the horizontal direction with indirect drive jack catch 41, under the mutually supporting of inclined plane 411 and guide face 521, make upper bracket 5 take place to remove in the vertical direction, until upper bracket 5 butt on rack fulcrum 2, accomplish the support of permanent support to rack fulcrum 2 department. Through the installation mode, the problem that in the prior art, the height of the permanent support is fixed, and when the mode of unloading the sliding shoes 3 in sequence is adopted, the situation that the sliding shoes 3 are inconvenient to replace by the permanent support is possibly caused is solved, and meanwhile, the problem that in the prior art, the stress uniformity of the part of the annular curved surface net rack 6 which is supported by the sliding shoes 3 and is not supported by the sliding shoes 3 is not high due to the limitation of the height of the permanent support, so that the stability in the whole unloading process is low is solved.
A protective sleeve 53 is further fixed on the seat plate 51, the upper end of the protective sleeve 53 is fixed on the seat plate 51, and the lower end of the protective sleeve 53 is covered on the lower end of the chuck 4, so that the protective function for the clamping claws 41, the connecting claws 52 and the connecting structure thereof is formed, and the service life is relatively prolonged. An avoiding groove 531 is formed at the lower end of the protecting sleeve 53, so that a wrench can extend into the groove and indirectly drive the clamping jaws 41 to slide in the opposite direction or in the reverse direction, and the operation is convenient.
Referring to fig. 5, in another aspect, an embodiment of the present invention further provides a method for replacing a permanent support for slip construction of an annular curved grid, including the following steps:
s1, after the annular curved surface net rack 6 slides in place, according to design nodes, permanent supports outside a sliding track 7 are plugged one by one in a clockwise or anticlockwise direction, before plugging, the distance between the chuck 4 and the upper side and the lower side of the upper support 5 is adjusted to be minimum, and after plugging, the height of the permanent supports is increased, so that the upper support 5 is abutted to a net rack fulcrum 2;
s2, determining a starting point, and unloading the sliding shoes 3 sliding on the sliding tracks 7 at the two ends one by one in a clockwise or anticlockwise direction, wherein the starting point is an installation point adjacent to the permanent support which is plugged in;
s3, starting from the starting point in the S2, plugging the permanent supports into the mounting points of the sliding shoes 3 in the S2 in a one-to-one correspondence manner, adjusting the distance between the upper side and the lower side of the chuck 4 and the upper support 5 to be minimum before plugging, and after plugging, adjusting the height of the permanent supports to be high so that the upper support 5 is abutted to the net rack fulcrum 2;
s4, welding and fixing the permanent supports in the S1 and the S3; wherein, the chuck 4 is welded on the frame body 1, and the upper support 5 is welded on the net rack pivot 2; before welding, the position of the permanent support can be finely adjusted; meanwhile, during welding, starting from the starting point and the diagonal point determined in the step S2, welding and fixing are symmetrically performed one by one in a clockwise or anticlockwise direction, so that the stability of the grid structure during welding is ensured;
s5, unloading the sliding shoes 3 sliding on the middle sliding track 7, wherein during unloading, multistage unloading is carried out from two sides of the arch-shaped supporting group to the highest point in the middle one by one until the unloading amount reaches a designed deflection value, and then the middle part is used for dismantling the temporary supporting column 8 of the annular curved surface net rack 6; the design deflection is divided equally into 3 sections of staged unloading (see figure 4).
During construction, a permanent support outside the sliding rail 7 is firstly plugged, the supporting height of the permanent support is adjusted, the supporting effect of the annular curved surface net rack 6 during subsequent removal of the sliding shoe 3 on the sliding rail 7 can be formed, meanwhile, after the permanent support is welded, the sliding shoe 3 of the middle sliding rail 7 is unloaded, so that the integral stress uniformity and stability of the annular curved surface net rack 6 during subsequent unloading of the sliding shoe 3 are ensured, the body characteristics of the net rack structure are locked in advance, the net rack is uniformly and stably unloaded through the measures of stages, steps, grading and the like, the problem that the integral stress uniformity is not high when the annular curved surface net rack 6 unloads the sliding shoe 3 and is replaced by the permanent support, the integral unloading stability is low is solved, and the net rack structure after the middle support is unloaded is reduced, the deflection is small, and the structure is stable.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (10)
1. The utility model provides a permanent support of annular curved surface rack construction that slides which characterized in that: the rack comprises a chuck (4) fixed on a rack body (1) and an upper support (5) fixed on a rack support point (2), wherein the upper support (5) is arranged on the upper side of the chuck (4) and can vertically move relative to the chuck (4); the minimum distance between the upper support (5) and the upper side and the lower side of the chuck (4) is smaller than the height of the sliding shoe (3) by 2-3cm.
2. The permanent support for the slippage construction of the annular curved net rack according to claim 1, wherein: a clamping jaw (41) of the chuck (4) is close to the upper support (5), and one side close to the upper support (5) is an inclined plane (411); the upper bracket (5) comprises a seat plate (51) and a plurality of connecting claws (52), the seat plate (51) is fixed on the net rack fulcrum (2), the connecting claws (52) are in one-to-one correspondence to the claws (41), and the connecting claws (52) are provided with guide surfaces (521) matched with the inclined surfaces (411).
3. The permanent support for the slippage construction of the annular curved net rack according to claim 2, wherein: spacing groove (42) have been seted up in the outside of chuck (4), bedplate (51) are fixed with gag lever post (511), gag lever post (511) vertical extension and lower extreme adaptation and sliding connection in spacing groove (42).
4. The permanent support for the annular curved surface net rack sliding construction according to claim 2, is characterized in that: the protective sleeve (53) is fixed on the seat plate (51), the upper end of the protective sleeve (53) is fixed on the seat plate (51), and the lower end of the protective sleeve is covered on the lower end of the chuck (4).
5. The permanent support for the annular curved surface net rack sliding construction according to claim 4, is characterized in that: the lower extreme of lag (53) is seted up and is dodged groove (531) for supply the spanner to stretch into, indirect drive a plurality of jack catchs (41) slide in opposite directions or back of the body.
6. A method for replacing a permanent support according to any of claims 1 to 5, comprising the following steps:
s1, after the annular curved surface net rack (6) slides in place, permanent supports outside the sliding track (7) are plugged one by one in a clockwise or anticlockwise direction;
s2, determining a starting point, and unloading the sliding shoes (3) sliding on the sliding tracks (7) at the two ends one by one in a clockwise or anticlockwise direction;
s3, from the starting point in the S2, the permanent supports are in one-to-one correspondence and are sequentially plugged into the mounting points of the sliding shoes (3) in the S2;
s4, welding and fixing the permanent supports in the S1 and the S3;
s5, unloading the sliding shoes (3) sliding on the middle sliding rail (7).
7. The method for replacing a permanent support according to claim 6, wherein: when the permanent support is plugged in the steps S1 and S3, the distance between the upper side and the lower side of the chuck (4) and the upper support (5) is the minimum.
8. The method for replacing a permanent support according to claim 7, wherein: after the permanent support is plugged in the step S1, the height of the permanent support is increased, so that the upper support (5) is abutted to the net rack fulcrum (2); and the starting point in step S3 is the mounting point adjacent to the plugged permanent seat.
9. The method for replacing a permanent support according to claim 6, wherein: and when welding is performed in the step S4, starting from the determined starting point and the diagonal point in the step S2, and welding and fixing the two points in a clockwise or anticlockwise one-to-one symmetrical mode.
10. The method for replacing a permanent support according to claim 6, wherein: and when the skid shoe (3) is unloaded in the step S5, the two sides of the arched support group carry out multi-stage unloading towards the middle highest point one by one, and the middle part is used for dismantling the temporary support column (8) of the annular curved surface net rack (6) after the unloading amount reaches the designed deflection value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210888720.0A CN115370021B (en) | 2022-07-27 | 2022-07-27 | Permanent support replacing method for sliding construction of annular curved-surface net rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210888720.0A CN115370021B (en) | 2022-07-27 | 2022-07-27 | Permanent support replacing method for sliding construction of annular curved-surface net rack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115370021A true CN115370021A (en) | 2022-11-22 |
| CN115370021B CN115370021B (en) | 2024-02-09 |
Family
ID=84063158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210888720.0A Active CN115370021B (en) | 2022-07-27 | 2022-07-27 | Permanent support replacing method for sliding construction of annular curved-surface net rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115370021B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100865752B1 (en) * | 2007-12-17 | 2008-10-29 | 코레일트랙 주식회사 | Shift method of bridge bearing of railroad |
| CN211058376U (en) * | 2019-10-22 | 2020-07-21 | 山西省工业设备安装集团有限公司 | Steel structure net rack jacking support |
| CN113215973A (en) * | 2021-05-27 | 2021-08-06 | 武汉梓翰装饰工程有限公司 | Bridge steel structure node connection structure |
| CN113864617A (en) * | 2021-09-28 | 2021-12-31 | 华强方特（深圳）科技有限公司 | Adjustable lifting support device |
| CN114687558A (en) * | 2022-04-11 | 2022-07-01 | 长江精工钢结构(集团)股份有限公司 | Method for synchronously unloading structure by utilizing sandbox |
-
2022
- 2022-07-27 CN CN202210888720.0A patent/CN115370021B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100865752B1 (en) * | 2007-12-17 | 2008-10-29 | 코레일트랙 주식회사 | Shift method of bridge bearing of railroad |
| CN211058376U (en) * | 2019-10-22 | 2020-07-21 | 山西省工业设备安装集团有限公司 | Steel structure net rack jacking support |
| CN113215973A (en) * | 2021-05-27 | 2021-08-06 | 武汉梓翰装饰工程有限公司 | Bridge steel structure node connection structure |
| CN113864617A (en) * | 2021-09-28 | 2021-12-31 | 华强方特（深圳）科技有限公司 | Adjustable lifting support device |
| CN114687558A (en) * | 2022-04-11 | 2022-07-01 | 长江精工钢结构(集团)股份有限公司 | Method for synchronously unloading structure by utilizing sandbox |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115370021B (en) | 2024-02-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR20110004765A (en) | Vehicle repair lift | |
| CN108643594B (en) | Manual correction device for cantilever steel beam and construction method thereof | |
| US6368022B1 (en) | Lifting system for massive constructions | |
| CN112064793A (en) | Assembled steel structure building beam column connecting and mounting system and connecting and mounting process | |
| CN114284949A (en) | Green building engineering electromechanical pipeline installation device | |
| CN115370021A (en) | Permanent support for annular curved surface net rack sliding construction and replacement method | |
| CN115126094A (en) | Slideway type lateral limiting device for jacking building | |
| CN110206156B (en) | Jacking system of jacking formula building roof platform | |
| CN212169521U (en) | Planet disc piston rod correcting unit | |
| KR101567736B1 (en) | Jack-Up Apparatus for Roof Structure Having Lifting Unit and Jack-Up Method for Roof Using the Same | |
| JPH06212803A (en) | Composite jack device for push-up and pull-up | |
| CN114046062A (en) | Novel independent braced system of post-cast strip | |
| JPS5948239B2 (en) | Jacking device | |
| CN110748772A (en) | Lifting base of large screen display | |
| CN110707505A (en) | Method for manufacturing wiring terminal | |
| CN216196451U (en) | Lifting device for construction of architectural decoration engineering | |
| CN219510726U (en) | Lifting type light projecting lighthouse | |
| CN219170752U (en) | Disassembling tool for air brake of pumped storage unit | |
| CN216074756U (en) | Secondary tensioning device for arch bridge suspender | |
| CN219386686U (en) | Square tube and I-shaped steel tube assembly node | |
| CN220432074U (en) | Auxiliary limiting frame for pouring special-shaped T beam | |
| CN215564296U (en) | High stable scaffold structure | |
| CN216157095U (en) | Building platform for outdoor building and indoor decoration | |
| CN220412781U (en) | Electrolytic aluminum anode repairing turn-over disc lifting machine | |
| CN219767213U (en) | Processing tool for locking shaft sleeve of civil air defense door |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |