CN109704196B - Reversible deformation structure for hoisting hyperbolic grid structure and hoisting method thereof - Google Patents
Reversible deformation structure for hoisting hyperbolic grid structure and hoisting method thereof Download PDFInfo
- Publication number
- CN109704196B CN109704196B CN201910052212.7A CN201910052212A CN109704196B CN 109704196 B CN109704196 B CN 109704196B CN 201910052212 A CN201910052212 A CN 201910052212A CN 109704196 B CN109704196 B CN 109704196B
- Authority
- CN
- China
- Prior art keywords
- grid structure
- point
- hyperbolic grid
- lifting
- hyperbolic
- 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
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention discloses a reversible deformation structure for hoisting a hyperbolic grid structure and a hoisting method thereof, and solves the problems that the grid deformation is large, the installation precision is not ideal enough and the hoisting efficiency is low when the hyperbolic grid structure is hoisted in the prior art. The anti-deformation structure comprises two end fixing rods, two connecting rods and a plurality of pull rods, wherein the two connecting rods and the two end fixing rods are connected with each other to form a frame structure, and all the pull rods are vertically fixed on the two end fixing rods and the two connecting rods. The hoisting method comprises the steps of assembling the anti-deformation structure on the hyperbolic grid structure to enable the hyperbolic grid structure to be a quasi-rigid system, and then hoisting by using a crane. The invention can change the hyperbolic grid structure from a flexible system to a quasi-rigid system, effectively reduce the deformation of the grid during hoisting, improve the installation precision and the installation speed of the hyperbolic grid structure, and simultaneously save the hoisting construction period and the labor cost.
Description
Technical Field
The invention relates to a reversible deformation structure for hoisting a hyperbolic grid structure and a hoisting method thereof.
Background
The hyperbolic grid structure is a flexible system, the grid deformation is large when the existing hoisting mode is used for hoisting, the installation precision is not ideal enough, and the hoisting efficiency is low. Therefore, it is an urgent technical problem to be solved by technical personnel in the technical field to design a reversible deformation structure for hoisting a hyperbolic grid structure, so that the hyperbolic grid structure is converted into a quasi-rigid system, the installation precision and the installation efficiency of the hyperbolic grid structure are improved, and the grid deformation during installation of the hyperbolic grid structure is reduced.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a reversible deformation structure for hoist and mount of hyperbolic rack structure and hoist and mount method thereof, solves the prior art when hoist and mount hyperbolic rack structure rack deformation great, installation accuracy is not ideal enough and hoist the problem with inefficiency.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a anti-deformation structure for hyperbolic rack structure hoist and mount, including two tip dead levers, two connecting rods and a plurality of pull rods, two the tip dead lever is located hyperbolic rack structure's the left side respectively and closes the below that mouthful and the right side closed mouthful, two the tip dead lever is located same horizontal plane and mutual parallel distribution, two connecting rod and two the tip dead lever interconnect becomes frame construction, all the equal vertical two of pull rod the tip dead lever and two on the connecting rod, each the top of pull rod is connected with a member node of hyperbolic rack structure respectively, and has at least one the connecting rod passes hyperbolic rack structure's focus.
Furthermore, when the height H of the span middle arch among the net rack sections is more than or equal to 20mm, at least one pull rod is connected between the corresponding sections.
Furthermore, the two connecting rods and the two end fixing rods are welded and fixed with each other.
Furthermore, the two connecting rods and the two end fixing rods are connected end to form a rectangular frame structure.
Furthermore, the two connecting rods are distributed in a crossed manner, and four ends of the two connecting rods are respectively connected with four ends of the two end fixing rods.
Further, still include an at least stiffener, the one end of stiffener with one the tip dead lever is connected, and its other end is connected with a member node of hyperbolic rack structure.
The method for hoisting the hyperbolic net rack structure by adopting the reversible deformation structure comprises the following steps of:
step 3, hoisting by a crane, wherein a left positioning pull rope c1 and a right positioning pull rope c2 are respectively pulled by manpower at two sides of the hyperbolic grid structure, and an operator stands at a left variable-length hoisting point b1 and a right variable-length hoisting point b2 of the hyperbolic grid structure respectively to operate corresponding first hand-pulled hoists during hoisting, so that a right closing K point of the hyperbolic grid structure is aligned to a mounting point in position;
step 6, retesting K, O, N three-point coordinates and two included angle angles of gamma and β, and finely adjusting a first chain block of a left variable-length lifting point b1 and a right variable-length lifting point b2 of the hyperbolic grid structure to enable the three-point angle K, O, N and the two included angle angles of gamma and β to be matched with a theoretical installation value or in an error range;
and 7, when the angle between the three point K, O, N and the included angles gamma and β is matched with the theoretical installation value or within the error range, reinforcing the hyperbolic grid structure, and loosening the lifting hook to finish the lifting.
Further, in the step 2, the crane lifting rope penetrates through the roof truss structure and is connected with the hyperbolic grid structure below the roof truss structure.
The method for hoisting the hyperbolic net rack structure by adopting the reversible deformation structure comprises the following steps of:
step 3, hoisting by a double-hook crane, wherein the left positioning pull rope c3 and the right positioning pull rope c4 are respectively pulled by manpower at two sides of the hyperbolic grid structure, the pulling directions of the left positioning pull rope c3 and the right positioning pull rope c4 are opposite, and an operator stands at a variable-length hoisting point b of the hyperbolic grid structure to operate a second manual hoist during hoisting, so that a right closing K point and an O point of the hyperbolic grid structure are aligned to be in-position mounting points;
step 6, retesting K, O, N three-point coordinates and two included angle angles of gamma and β, and finely adjusting a second hand-pulled block on a variable-length hanging point b of the hyperbolic grid structure to enable the K, O, N three-point included angle angles of gamma and β to be matched with a theoretical installation value or within an error range;
and 7, when the angle between the three point K, O, N and the included angles gamma and β is matched with the theoretical installation value or within the error range, reinforcing the hyperbolic grid structure, and loosening the main lifting hook and the auxiliary lifting hook, namely finishing the lifting.
Further, in the step 2, the main lifting hook is positioned at the outer side of the roof truss structure, and a second hand-pulling block connected to the auxiliary lifting hook penetrates through the roof truss structure to be connected with the variable-length lifting point b.
Compared with the prior art, the invention has the following beneficial effects:
the anti-deformation structure is scientific and reasonable in design, simple in structure and convenient to use, the hyperbolic grid structure is changed from a flexible system to a quasi-rigid system, the grid deformation during hoisting can be effectively reduced, the installation precision and the installation speed of the hyperbolic grid structure can be improved, and meanwhile, the hoisting period and labor cost can be saved.
The method for hoisting the hyperbolic grid structure by the reversible deformation structure can safely, smoothly and efficiently hoist the hyperbolic grid structure to the roof truss structure, is time-saving and labor-saving in hoisting, can realize accurate butt joint in hoisting, is high in hoisting efficiency, and can effectively shorten the hoisting period.
Drawings
Fig. 1 is a schematic diagram of a reversible deformation structure of the present invention.
Fig. 2 is a view of the assembly reversible deformation structure of the hyperbolic grid structure (H in the figure is the mid-span arch height, L is the span length).
Fig. 3 is a view of the reversible deformation structure of the connecting rod of the present invention in crossed distribution.
Fig. 4 is a structural view of the reversible deformation of the connecting rod and the end fixing rod when the connecting rod and the end fixing rod are connected end to end.
Fig. 5 is a view of a hyperbolic grid structure of the first hoisting method of the invention.
Fig. 6 is a hoisting state diagram of the first hoisting method of the invention.
Fig. 7 is a view of a hyperbolic grid structure of a second hoisting method of the invention.
Fig. 8 is a hoisting state diagram of the second hoisting method of the invention.
Fig. 9 is a view of a lower closing horizontal projection curve of the hyperbolic grid structure.
Fig. 10 is a right closed front projection curve view of the hyperbolic grid structure of the invention.
Wherein, the names corresponding to the reference numbers are:
1-a grid structure; 11-a lower closed horizontal projection curve of the hyperbolic grid structure; a 12-hyperbolic grid structure right closed front projection curve; 2-reversible deformation structure; 21-a pull rod; 22-a stiffener; 23-end fixing rod; 24-a connecting rod; 3, a crane; 31-a hook; 32-crane lifting rope; 33-fixed length lifting rope; 34-first chain block; 4-roof truss structure; 5-double hook crane, 51-main hook, 52-auxiliary hook, 53-fixed lifting rope and 54-second hand-pull hoist.
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.
As shown in fig. 1 to 4, the reversible deformation structure for hoisting a hyperbolic grid structure provided by the invention comprises two end fixing rods 23, two connecting rods 24 and a plurality of pull rods 21, wherein the two end fixing rods 23 are respectively located below a left closing opening and a right closing opening of the hyperbolic grid structure 1, the two end fixing rods 23 are located on the same horizontal plane and are distributed in parallel, the two connecting rods 24 and the two end fixing rods 23 are connected with each other to form a frame structure, all the pull rods 21 are vertically fixed on the two end fixing rods 23 and the two connecting rods 24, the top end of each pull rod 21 is respectively connected with a rod node of the hyperbolic grid structure 1, and at least one connecting rod 24 penetrates through the gravity center of the hyperbolic grid structure 1.
When the height H of the span middle arch among the net rack segments is more than or equal to 20mm, at least one pull rod is connected between the corresponding segments. The two connecting rods 24 and the two end fixing rods 23 are welded and fixed with each other. Still include an at least stiffener 22, the one end of stiffener 22 with one end dead lever 23 is connected, and its other end is connected with a member node of hyperbolic grid structure 1.
The connecting rods 24 and the end fixing rods 23 are connected in two ways, and one way is that the two connecting rods 24 and the two end fixing rods 23 are connected end to form a rectangular frame structure. The other is that the two connecting rods 24 are distributed in a crossed manner, and four ends of the two connecting rods 24 are respectively connected with four ends of the two end fixing rods 23.
The anti-deformation structure is scientific and reasonable in design, simple in structure and convenient to use, the hyperbolic grid structure is changed from a flexible system to a quasi-rigid system, the grid deformation during hoisting can be effectively reduced, the installation precision and the installation speed of the hyperbolic grid structure can be improved, and meanwhile, the hoisting period and labor cost can be saved.
The method for hoisting the hyperbolic grid structure by the reversible deformation structure can safely, smoothly and efficiently hoist the hyperbolic grid structure to the roof truss structure, is time-saving and labor-saving in hoisting, can realize accurate butt joint in hoisting, is high in hoisting efficiency, and can effectively shorten the hoisting period. The invention adopts two oil supply modes of a method for hoisting a hyperbolic net rack structure by adopting a reversible deformation structure, one of which is shown in figures 5, 6, 9 and 10 and comprises the following steps:
And 3, lifting by a crane 3, respectively pulling a left positioning pull rope c1 and a right positioning pull rope c2 by manpower at two sides of the hyperbolic grid structure, and standing an operator at a left variable-length lifting point b1 and a right variable-length lifting point b2 of the hyperbolic grid structure to operate corresponding first hand-pulled hoists 34 during lifting so that right closing K points of the hyperbolic grid structure are aligned to mounting points in place.
And 4, after the right closing K point of the hyperbolic net rack structure is aligned to the installation point in position, keeping the left positioning pull rope c1 still, adjusting the right positioning pull rope c2 and the first pull block 34 of the right variable-length hanging point b2 to enable the included angle S between the right closing orthographic projection curve 12 of the hyperbolic net rack structure and the horizontal line to reach the installation angle, adding a butt joint code plate, and performing spot welding on the right closing K point of the hyperbolic net rack structure, wherein the lower end point of the right closing of the hyperbolic net rack structure is overlapped with the coordinates of the O point.
And 5, after spot welding is finished, keeping the K point and the O point of the right closing opening of the hyperbolic grid structure unchanged, adjusting the first hand-pulling block 34 of the left positioning pull rope c1 and the left variable-length hanging point b1 to enable the lower end point of the left closing opening of the hyperbolic grid structure to be coincided with the coordinates of the N point, and enabling the included angle gamma between the horizontal plane projection curve 11 of the closing opening under the hyperbolic grid structure and the horizontal line to reach the installation angle.
and 6, retesting K, O, N three-point coordinates and two included angle angles of gamma and β, and finely adjusting the first chain block 34 of the left variable-length lifting point b1 and the right variable-length lifting point b2 of the hyperbolic grid structure to enable the three-point angle K, O, N and the two included angle angles of gamma and β to be matched with a theoretical installation value or in an error range.
and 7, when the angle between the three point K, O, N and the included angles gamma and β is matched with the theoretical installation value or within the error range, reinforcing the hyperbolic grid structure, and loosening the lifting hook 31 to finish the lifting.
The second is shown in fig. 7-10, which comprises the following steps:
step 2, three lifting points and two positioning pull ropes are arranged on the hyperbolic grid structure, the three lifting points are respectively an elongated lifting point b positioned in the middle of a lower closing opening of the hyperbolic grid structure, and fixed-length lifting points a1 and fixed-length lifting points a2 which are respectively positioned on the left side and the right side of the upper closing opening of the hyperbolic grid structure, the elongated lifting point b is connected with an auxiliary lifting hook 52 on the double-hook crane 5 through a second hand-pulled block 54, the fixed-length lifting point a1 and the fixed-length lifting point a2 are respectively connected with a main lifting hook 51 on the double-hook crane 5 through a fixed lifting rope 53, the two positioning pull ropes are respectively a left positioning pull rope c3 positioned at a first rod node on the left side of the lower closing opening of the hyperbolic grid structure and a right positioning pull rope c2 positioned at a first rod node on the right side of the lower closing opening of the hyperbolic grid structure, the second hand-pulled block 54 and the two fixed lifting ropes 53 are respectively connected with a fixed lifting hook 51 on the outer side of the hyperbolic grid structure, the lifting hook 51 is connected with the end of the elongated lifting truss 52 a lifting rod 387 of the hyperbolic grid structure, and the fixed-length lifting rod 52 a truss 52, and the fixed-length lifting rod 3875 are connected with the hyperbolic grid structure, and the fixed-length lifting rod truss structure, and the fixed lifting.
And 3, lifting by the double-hook crane 5, pulling the left positioning pull rope c3 and the right positioning pull rope c4 on two sides of the hyperbolic grid structure respectively through manpower, wherein the pulling directions of the left positioning pull rope c3 and the right positioning pull rope c4 are opposite, and standing an operator at the position of the variable-length lifting point b of the hyperbolic grid structure during lifting to operate the second hand-pulling block 54, so that the right closing K point and the O point of the hyperbolic grid structure are aligned to be in place mounting points.
And 4, after the right closing K point and the O point of the hyperbolic grid structure are aligned to the in-place mounting points, keeping the left positioning pull rope c3 still, adjusting the second hand-pull block 54 and the right positioning pull rope c4 to enable an included angle S between the right closing orthographic projection curve 12 of the hyperbolic grid structure and a horizontal line to reach a mounting angle, and then adding a butt joint code plate and carrying out spot welding on the right closing K point and the O point of the hyperbolic grid structure.
And 5, after spot welding of the K point and the O point is completed, keeping the K point and the O point of the right closed opening of the hyperbolic grid structure unchanged, adjusting a left position-adjusting pull rope c3 to enable the lower end point of the left closed opening of the hyperbolic grid structure to be coincided with the coordinates of the N point, enabling an included angle gamma between a horizontal projection curve 11 of the lower closed opening of the hyperbolic grid structure and a horizontal line to reach an installation angle, adding a butt joint code plate, performing spot welding on the lower end point of the left closed opening of the hyperbolic grid structure, and enabling the lower end point of the right closed opening of the hyperbolic grid structure to be coincided with the coordinates of the O point at the moment.
and 6, retesting K, O, N three-point coordinates and two included angle angles of gamma and β, and finely adjusting the second hand-pulled block 54 on the variable-length hanging point b of the hyperbolic grid structure to enable the K, O, N three-point included angle angles of gamma and β to be matched with a theoretical installation value or within an error range.
and 7, when the angle between the three point K, O, N and the included angles gamma and β is matched with the theoretical installation value or within the error range, reinforcing the hyperbolic net rack structure, and loosening the main lifting hook 51 and the auxiliary lifting hook 52 to finish the lifting.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention, but all the insubstantial modifications or changes made within the spirit and scope of the main design of the present invention, which still solve the technical problems consistent with the present invention, should be included in the scope of the present invention.
Claims (10)
1. The method for hoisting the hyperbolic grid structure by adopting the reverse deformation structure is characterized in that the reverse deformation structure comprises two end fixing rods (23), two connecting rods (24) and a plurality of pull rods (21), the two end fixing rods (23) are respectively positioned below a left closing opening and a right closing opening of the hyperbolic grid structure (1), the two end fixing rods (23) are positioned on the same horizontal plane and are distributed in parallel, the two connecting rods (24) and the two end fixing rods (23) are mutually connected to form a frame structure, all the pull rods (21) are vertically fixed on the two end fixing rods (23) and the two connecting rods (24), the top end of each pull rod (21) is respectively connected with a rod piece node of the hyperbolic grid structure (1), and at least one connecting rod (24) passes through the center of gravity of the hyperbolic grid structure (1);
the method comprises the following steps:
step 1, mounting a reverse deformation structure on a hyperbolic grid structure, and transferring the hyperbolic grid structure provided with the reverse deformation structure to the lower part of a mounting position of a roof truss structure (4) by adopting a crane;
step 2, three lifting points and two positioning pull ropes are arranged on the hyperbolic grid structure, the three lifting points are respectively a fixed-length lifting point a, a left variable-length lifting point b1 and a right variable-length lifting point b2, the two positioning pull ropes are respectively a left positioning pull rope c1 and a right positioning pull rope c2, wherein the left positioning pull rope c1 and the right positioning pull rope c2 are respectively positioned at first rod piece nodes at the left side and the right side of a lower closing opening of the hyperbolic grid structure, the left variable-length lifting point b1 and the right variable-length lifting point b2 are respectively positioned at the left side and the right side of the lower closing opening of the hyperbolic grid structure, the left variable-length lifting point b1 and the right variable-length lifting point b2 are respectively connected with a lifting rope (32) of a lifting hook (31) on the hyperbolic grid structure through a first hand-operated hoist (34), the fixed-length lifting point a is positioned in the middle of the upper closing opening of the hyperbolic grid structure, the fixed-length lifting point a fixed-length lifting rope a lifting rope (31) on the crane (3) through a first hand-operated hoist (33) and a crane (32) connected with the lifting rope hoist crane (32), an included angle between the hyperbolic grid structure and a lifting rope (30) and a lifting rope (32) in the hyperbolic grid structure, the hyperbolic grid structure is changed through a vertical hoisting rope hoist (33), and a hoisting rope hoist (32), and a;
step 3, a crane (3) lifts, wherein the left positioning pull rope c1 and the right positioning pull rope c2 are respectively pulled by manpower at two sides of the hyperbolic grid structure, and an operator stands at a left variable-length lifting point b1 and a right variable-length lifting point b2 of the hyperbolic grid structure to operate corresponding first hand-pulled hoists (34) respectively during lifting, so that right closing K points of the hyperbolic grid structure are aligned to positioning mounting points;
step 4, after the right closing K point of the hyperbolic grid structure is aligned to a mounting point in place, keeping the left positioning pull rope c1 still, adjusting a first pull chain block (34) of the right positioning pull rope c2 and the right variable-length hanging point b2 to enable an included angle S between a right closing orthographic projection curve (12) of the hyperbolic grid structure and a horizontal line to reach a mounting angle, adding a butt joint code plate, and performing spot welding on the right closing K point of the hyperbolic grid structure, wherein the lower end point of the right closing of the hyperbolic grid structure is overlapped with the coordinates of the O point;
step 5, after spot welding is finished, keeping a K point and an O point of a right closing opening of the hyperbolic grid structure unchanged, adjusting a first hand-pulling block 34 of a left position-adjusting pulling rope c1 and a left length-variable hanging point b1 to enable the lower end point of the left closing opening of the hyperbolic grid structure to be coincided with the coordinates of the N point, and enabling an included angle gamma between a horizontal plane projection curve 11 of the closing opening under the hyperbolic grid structure and a horizontal line to reach an installation angle;
step 6, retesting K, O, N three-point coordinates and two included angle angles of gamma and β, and finely adjusting a first chain block (34) of a left variable-length lifting point b1 and a right variable-length lifting point b2 of the hyperbolic grid structure to enable the three points K, O, N, the two included angle angles of gamma and β to be matched with a theoretical installation value or in an error range;
and 7, when the angle between the three point K, O, N and the included angles gamma and β is matched with the theoretical installation value or within the error range, reinforcing the hyperbolic grid structure, and loosening the lifting hook (31) to finish the lifting.
2. The method for hoisting the hyperbolic grid structure by using the reverse deformation structure as claimed in claim 1, wherein in the step 2, the crane lifting rope (32) passes through the roof truss structure (4) and is connected with the hyperbolic grid structure below the roof truss structure (4).
3. The method for hoisting the hyperbolic grid structure by adopting the anti-deformation structure as claimed in claim 1, wherein when the height H of the span-midsection among the grid segments is more than or equal to 20mm, at least one pull rod is connected between the corresponding segments.
4. The method for hoisting the hyperbolic grid structure by using the reverse deformation structure as claimed in claim 3, wherein the two connecting rods (24) and the two end fixing rods (23) are welded and fixed with each other.
5. The method for hoisting the hyperbolic grid structure by using the reverse deformation structure as claimed in claim 4, wherein the two connecting rods (24) and the two end fixing rods (23) are connected end to form a rectangular frame structure.
6. The method for hoisting the hyperbolic grid structure by using the reverse deformation structure as claimed in claim 4, wherein the two connecting rods (24) are distributed in a crossed manner, and four ends of the two connecting rods (24) are respectively connected with four ends of the two end fixing rods (23).
7. The method for hoisting the hyperbolic grid structure by using the reversible deformation structure as claimed in claim 5 or 6, further comprising at least one stiffening rod (22), wherein one end of the stiffening rod (22) is connected with one end fixing rod (23), and the other end of the stiffening rod is connected with one rod node of the hyperbolic grid structure (1).
8. The method for hoisting the hyperbolic grid structure by adopting the reverse deformation structure is characterized in that the reverse deformation structure comprises two end fixing rods (23), two connecting rods (24) and a plurality of pull rods (21), the two end fixing rods (23) are respectively positioned below a left closing opening and a right closing opening of the hyperbolic grid structure (1), the two end fixing rods (23) are positioned on the same horizontal plane and are distributed in parallel, the two connecting rods (24) and the two end fixing rods (23) are mutually connected to form a frame structure, all the pull rods (21) are vertically fixed on the two end fixing rods (23) and the two connecting rods (24), the top end of each pull rod (21) is respectively connected with a rod piece node of the hyperbolic grid structure (1), and at least one connecting rod (24) passes through the center of gravity of the hyperbolic grid structure (1);
the method comprises the following steps:
step 1, mounting a reverse deformation structure on a hyperbolic grid structure, and transferring the hyperbolic grid structure provided with the reverse deformation structure to the lower part of a mounting position of a roof truss structure (4) by adopting a crane;
step 2, three lifting points and two positioning pull ropes are arranged on the hyperbolic grid structure, the three lifting points are respectively an elongated lifting point b positioned in the middle of a lower joint of the hyperbolic grid structure, and fixed-length lifting points a1 and fixed-length lifting points a2 respectively positioned on the left side and the right side of the upper joint of the hyperbolic grid structure, the elongated lifting point b is connected with an auxiliary lifting hook (52) on a double-hook crane (5) through a second chain block (54), the fixed-length lifting point a1 and the fixed-length lifting point a2 are respectively connected with a main lifting hook (51) on the double-hook crane (5) through a fixed lifting rope (53), the two positioning pull ropes are respectively a left positioning pull rope c3 positioned at a first rod node on the left side of the lower joint of the hyperbolic grid structure and a right positioning pull rope c4 positioned at a first rod node on the right side of the lower joint of the hyperbolic grid structure, and the change value of an included angle β between the second pulling block (54) and the two fixed pull ropes (53) and a horizontal plane is less than or equal to 30 degrees and less than 90 degrees;
step 3, lifting by a double-hook crane (5), wherein both sides of the hyperbolic grid structure are respectively pulled by a left positioning pull rope c3 and a right positioning pull rope c4 through manpower, the pulling directions of the left positioning pull rope c3 and the right positioning pull rope c4 are opposite, and an operator stands at a variable-length lifting point b of the hyperbolic grid structure to operate a second hand-pulling block (54) during lifting, so that a right closing K point and an O point of the hyperbolic grid structure are aligned to a mounting point;
step 4, after the right closing K point and the O point of the hyperbolic grid structure are aligned to the in-place mounting points, keeping the left positioning pull rope c3 still, adjusting a second hand-pull block (54) and the right positioning pull rope c4 to enable an included angle S between a right closing orthographic projection curve (12) of the hyperbolic grid structure and a horizontal line to reach a mounting angle, and then adding a butt joint code plate and carrying out spot welding on the right closing K point and the O point of the hyperbolic grid structure;
step 5, after spot welding of the K point and the O point is completed, keeping the K point and the O point of a right closing opening of the hyperbolic grid structure unchanged, adjusting a left position-adjusting pull rope c3 to enable the lower end point of the left closing opening of the hyperbolic grid structure to be coincided with the coordinates of the N point, enabling an included angle gamma between a horizontal projection curve 11 of the lower closing opening of the hyperbolic grid structure and a horizontal line to reach an installation angle, adding a butt joint code plate, and carrying out spot welding on the lower end point of the left closing opening of the hyperbolic grid structure, wherein the lower end point of the right closing opening of the hyperbolic grid structure is coincided with the coordinates of the O point at the moment;
step 6, retesting K, O, N three-point coordinates and two included angle angles of gamma and β, and finely adjusting a second hand-pulled block (54) on a variable-length hanging point b of the hyperbolic grid structure to enable the K, O, N three-point included angle angles of gamma and β to be matched with a theoretical installation value or within an error range;
and 7, when the angle between the three point K, O, N and the included angles gamma and β is matched with the theoretical installation value or within the error range, reinforcing the hyperbolic net rack structure, and loosening the main lifting hook (51) and the auxiliary lifting hook (52) to finish the lifting.
9. The method for hoisting the hyperbolic grid structure by using the reverse deformation structure as claimed in claim 8, wherein in the step 2, the main hook (51) is positioned at the outer side of the roof truss structure (4), and the second hand-pulling block (54) connected to the auxiliary hook (52) is connected with the lengthened hanging point b through the roof truss structure (4).
10. The method for hoisting the hyperbolic grid structure by adopting the anti-deformation structure as claimed in claim 8, wherein when the height H of the span-midsection among the grid segments is more than or equal to 20mm, at least one pull rod is connected between the corresponding segments.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910052212.7A CN109704196B (en) | 2019-01-21 | 2019-01-21 | Reversible deformation structure for hoisting hyperbolic grid structure and hoisting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910052212.7A CN109704196B (en) | 2019-01-21 | 2019-01-21 | Reversible deformation structure for hoisting hyperbolic grid structure and hoisting method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109704196A CN109704196A (en) | 2019-05-03 |
| CN109704196B true CN109704196B (en) | 2020-05-19 |
Family
ID=66262382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910052212.7A Active CN109704196B (en) | 2019-01-21 | 2019-01-21 | Reversible deformation structure for hoisting hyperbolic grid structure and hoisting method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109704196B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625645A (en) * | 2016-01-08 | 2016-06-01 | 中国建筑第八工程局有限公司 | Construction method of suspension type steel-structured lighting skylight |
| CN206289268U (en) * | 2016-12-09 | 2017-06-30 | 赤峰和然节能有限责任公司 | Arch smelts slag bath insulation cover |
| CN110409837A (en) * | 2019-07-11 | 2019-11-05 | 中建八局第三建设有限公司 | A kind of large-span double-layer steel screen roof system sub-unit construction method for hanging |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030188495A1 (en) * | 2002-04-09 | 2003-10-09 | Taylor Steven Bradley | Suspended jig for roof construction |
-
2019
- 2019-01-21 CN CN201910052212.7A patent/CN109704196B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625645A (en) * | 2016-01-08 | 2016-06-01 | 中国建筑第八工程局有限公司 | Construction method of suspension type steel-structured lighting skylight |
| CN206289268U (en) * | 2016-12-09 | 2017-06-30 | 赤峰和然节能有限责任公司 | Arch smelts slag bath insulation cover |
| CN110409837A (en) * | 2019-07-11 | 2019-11-05 | 中建八局第三建设有限公司 | A kind of large-span double-layer steel screen roof system sub-unit construction method for hanging |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109704196A (en) | 2019-05-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102979313B (en) | Steel truss upper air installing construction method that conversion layer is overweight | |
| CN110747736B (en) | Rigid skeleton integrated device integrated with lifting appliance and steel reinforcement cage lifting construction method | |
| CN207030727U (en) | A kind of hanging device | |
| CN203475412U (en) | Reinforcement cage suitable for single crane hanging | |
| CN114215170A (en) | Method for lifting super-altitude giant hanging multi-layer connected structure | |
| CN106567542A (en) | Super high-rise double tower building steel structure corridor assembling method | |
| CN108952178A (en) | A kind of two-way angular displacement accumulation method for improving of irregular free form surface steel worm-gearing | |
| CN109704196B (en) | Reversible deformation structure for hoisting hyperbolic grid structure and hoisting method thereof | |
| CN204873431U (en) | Multi -functional steel reinforcement cage hoist | |
| CN207844939U (en) | Movable arm tower crane climbing beam support system | |
| CN207030735U (en) | Prefabricated balcony lifts servicing unit | |
| CN102777036A (en) | Air reverse mechanical joint construction method of super-long vertical reinforcement cage | |
| CN203050094U (en) | Bowstring trussed totally closed hydraulic pressure creeping formwork system | |
| CN114922435A (en) | Construction method of bolt-sphere joint net rack of garbage power station | |
| CN209918784U (en) | Inner support frame of steel bar binding mould | |
| CN206844614U (en) | A kind of external wall construction construction platform | |
| CN208545970U (en) | A kind of quick formwork erection of side wall pours concrete equipment | |
| CN112239187A (en) | Demolish lift hydraulic locomotive | |
| CN214031379U (en) | Single-point hoisting shoulder pole sling | |
| CN217126746U (en) | Lightweight attached joint convenient to assemble and lift | |
| CN212127239U (en) | Hanging bracket for integrally hoisting prefabricated U-shaped beam reinforcement cage | |
| CN110104547A (en) | A kind of gantry container crane is with increasing tooling and increase method | |
| CN221500365U (en) | Steel construction flip-chip hoisting device | |
| CN201132918Y (en) | Sleeper device for laying double-block sleepers | |
| CN220311627U (en) | T beam reinforcement cage forming device |
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 |