CN113136961A - Lifting structure for large-span truss and lifting method thereof - Google Patents
Lifting structure for large-span truss and lifting method thereof Download PDFInfo
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- CN113136961A CN113136961A CN202110321427.1A CN202110321427A CN113136961A CN 113136961 A CN113136961 A CN 113136961A CN 202110321427 A CN202110321427 A CN 202110321427A CN 113136961 A CN113136961 A CN 113136961A
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- truss
- lifting
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- trusses
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000003466 welding Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 21
- 238000009435 building construction Methods 0.000 description 1
- 238000005266 casting Methods 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
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Classifications
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- 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
- E04B1/35—Extraordinary methods of construction, e.g. lift-slab, jack-block
-
- 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
- E04B1/342—Structures covering a large free area, whether open-sided or not, e.g. hangars, halls
-
- 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
- E04B1/35—Extraordinary methods of construction, e.g. lift-slab, jack-block
- E04B1/3511—Lift-slab; characterised by a purely vertical lifting of floors or roofs or parts thereof
-
- 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
- E04B1/35—Extraordinary methods of construction, e.g. lift-slab, jack-block
- E04B2001/3588—Extraordinary methods of construction, e.g. lift-slab, jack-block using special lifting or handling devices, e.g. gantries, overhead conveying rails
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The present invention relates to a lifting structure for a long-span truss to be connected between two opposite end trusses, and a lifting method thereof, the lifting structure comprising: the frame body is vertically and fixedly arranged on the ground and used for supporting the end truss; the lifting frame is fixedly arranged on the top of the end truss, and the lifting frame part extends towards the direction close to the truss at the other end; and the lifting device is arranged on the extending part of the lifting frame, is coiled with a rope and is fixedly connected with the truss through the rope, and then the rope is collected by the lifting device to drive the truss to ascend, so that the truss is lifted to the position between the two end trusses. The invention effectively solves the problem that the support body is difficult to arrange under the condition of limited space, and the support body is arranged by the end trusses attached to the two ends of the truss so as to form a simple support system, thereby realizing the integral lifting of the large-span truss, reducing the construction difficulty and improving the construction efficiency and the construction quality.
Description
Technical Field
The invention relates to the field of building construction, in particular to a lifting structure for a large-span truss and a lifting method thereof.
Background
With the rapid development of the modernization process in recent years and the rapid development of large-span buildings, people can improve the building aesthetic value, stadium buildings increasingly use large-span space truss structures, the structural working condition is complex, a supporting structure is often arranged near a truss in the actual construction process, the truss is installed by utilizing the integral lifting mode, however, when the construction space is limited or a lattice type temporary supporting structure is arranged, the truss is difficult to install in the integral lifting mode, the construction difficulty is increased, and the construction efficiency and the construction quality can be influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a lifting structure for a large-span truss and a lifting method thereof, solves the problem that a support body supported under the condition of limited space is difficult to arrange, and forms a simple support system by arranging the support body by attaching end trusses at two ends of the truss, thereby realizing the integral lifting of the large-span truss, reducing the construction difficulty and improving the construction efficiency and the construction quality.
The technical scheme for realizing the purpose is as follows:
the present invention provides a hoisting structure for a large-span truss to be connected between two opposite end trusses, the hoisting structure comprising:
the frame body is vertically and fixedly arranged on the ground and used for supporting the end truss;
the lifting frame is fixedly arranged on the top of the end truss, and the lifting frame part extends towards the direction close to the truss at the other end; and
install in the lifting machine of the extension of hoisting frame, this lifting machine coils there is the rope, through rope and truss fixed connection, and then the rope is packed up to lifting machine to it rises to drive the truss, thereby promotes between truss to two end trusses.
The invention provides a lifting structure for a large-span truss, which is characterized in that a frame body is arranged on the ground to support an end truss, the end truss provides a supporting force, a lifting device is arranged at the top of the end truss, a support frame can be prevented from being arranged around the end truss, the lifting structure is suitable for construction working conditions with limited space, the time for arranging the support frame is greatly shortened, the construction efficiency is improved, the problem that the frame body supporting under the condition of limited space is difficult to arrange is solved, the frame bodies are arranged through the end trusses attached to the two ends of the truss to form a simple support system, so that the whole lifting of the large-span truss is realized, the construction difficulty is reduced, and the construction efficiency and the construction quality are improved.
The invention is used for the further improvement of the hoisting structure of the long-span truss, the position of the ground corresponding to the end truss is vertically provided with the upright post, and the end truss is fixed at the top of the upright post;
the support body sets up and vertically sets firmly in the montant and the level setting on ground and connects the horizon bar between montant and stand including corresponding the end truss to the top of this montant and the bottom fixed connection of end truss to support the end truss.
A further improvement of the lifting structure for a long-span truss according to the present invention is that the frame body further includes diagonal members connected obliquely between the horizontal members and the bottom surfaces of the end trusses.
The invention further provides a lifting structure for a large-span truss, which is characterized in that the frame body further comprises a concrete foundation formed on the ground in a pouring mode and an embedded part embedded in the concrete foundation and partially exposed out of the top surface of the concrete foundation, and the bottom of the vertical rod is fixedly connected to the exposed part of the embedded part.
The lifting structure for the large-span truss is further improved in that the lifting frame comprises a vertical support vertically fixed on the top of the end truss and a horizontal beam horizontally arranged and fixed on the top of the vertical support, one end of the horizontal beam extends towards the direction close to the truss at the other end, and the lifter is fixed on the extending part of the horizontal beam.
The lifting structure for a long-span truss of the present invention is further improved in that the lifting frame further includes a first diagonal brace obliquely supported between the cross member and the vertical brace and a second diagonal brace obliquely supported between the vertical brace and the top of the end truss.
The invention further improves the lifting structure for the large-span truss, wherein the cross beam is a pipe body with a rectangular section, a through hole is formed in the position, corresponding to the rope of the lifting device, of the cross beam, the rope of the lifting device penetrates through the through hole to extend downwards to be fixedly connected with the truss, and a plurality of stiffening plates are arranged inside the cross beam at intervals.
The lifting structure for the large-span truss is further improved in that the lifting structure further comprises a lifting appliance fixed to the end portion, close to the truss, of the rope, and the rope is fixed to the truss through the fixed connection of the lifting appliance and the truss.
The invention is used for the further improvement of the lifting structure of the large-span truss, the truss is formed by welding a plurality of round tubes;
the hoist includes two connecting plates that set up relatively and connects between two connecting plates and a plurality of fixed plates that the interval set up, and the rope is worn to locate a plurality of fixed plates and with fixed plate fixed connection, the bottom of connecting plate be formed with pipe assorted circular arc groove, locate the pipe through circular arc groove card and with pipe fixed connection to make the hoist be fixed in the truss.
The invention provides a lifting method of a lifting structure for a large-span truss, which comprises the following steps:
providing a frame body and a lifting frame, fixedly arranging the frame body on the ground, supporting an end truss, and arranging the lifting frame on the top of the end truss;
providing a lifting device, and mounting the lifting device on the extending part of the lifting frame;
the truss is arranged on the ground between the two opposite end trusses, the rope of the lifting device is fixedly connected with the truss, and the rope is retracted by the lifting device to drive the truss to ascend, so that the truss is lifted to the position between the two end trusses.
Drawings
Fig. 1 is a view showing an overall use state of the lifting structure for a long-span truss according to the present invention.
Fig. 2 is a perspective view of a frame body in the lifting structure for a long-span truss according to the present invention.
Fig. 3 is an enlarged schematic view of a lifting frame and a hoist in the lifting structure for a long-span truss according to the present invention.
Fig. 4 is an exploded view of a cross member in the lifting structure for a long-span truss according to the present invention.
Fig. 5 is a perspective view of a spreader in a lifting structure for a long-span truss according to the present invention.
Fig. 6 is an exploded view of a spreader for a lifting structure of a long span truss according to the present invention.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 1, the invention provides a lifting structure for a large-span truss and a lifting method thereof, wherein a frame body is arranged on the ground to support an end truss, the end truss provides a supporting force, a lifting device is arranged at the top of the end truss, the situation that a support frame is arranged around the end truss can be avoided, the lifting structure is suitable for construction working conditions with limited space, the time for arranging the support frame is greatly shortened, the construction efficiency is improved, the problem that the support frame under the condition that the space is limited is difficult to arrange is solved, the frame body is arranged by depending on the end trusses at the two ends of the truss to form a simple support system, so that the large-span truss is integrally lifted, the construction difficulty is reduced, and the construction efficiency and the construction quality are improved. The following describes a lifting structure for a long-span truss according to the present invention with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a view illustrating an overall use state of a lifting structure for a long-span truss according to the present invention. The following describes a lifting structure for a long-span truss according to the present invention with reference to fig. 1.
As shown in fig. 1, the lifting structure for a long-span truss of the present invention, the truss 21 being to be connected between opposite end trusses 22, comprises:
a frame body 11 vertically fixed on the ground and supporting the end truss 22;
a lifting frame 12 fixedly mounted on top of the end truss 22, and the lifting frame 12 partially extends in a direction close to the other end truss 22; and
and the lifting device 13 is arranged on the extending part of the lifting frame 12, the lifting device 13 is coiled with a rope 131, and is fixedly connected with the truss 21 through the rope 131, and then the lifting device 13 collects the rope 131 to drive the truss 21 to ascend, so that the truss 21 is lifted to the position between the two end trusses 22.
As a preferred embodiment of the present invention, referring to fig. 2, a vertical column 221 is erected at a position corresponding to the end truss 22 on the ground, and the end truss 22 is fixed on the top of the vertical column 221;
the frame body 11 includes a vertical rod 111 vertically fixed on the ground corresponding to the end truss 22 and a horizontal rod 112 horizontally arranged and connected between the vertical rod 111 and the upright column 221, and the top of the vertical rod 111 is fixedly connected with the bottom of the end truss 22 to support the end truss 22.
Preferably, the frame 11 further includes diagonal rods 113 connected obliquely between the horizontal rods 112 and the bottom surface of the end truss 22.
Specifically, the frame body 11 further includes a concrete foundation 114 formed on the ground by casting, and an embedded member embedded in the concrete foundation 114 and partially exposed from the top surface of the concrete foundation 114, and the bottom of the vertical rod 111 is fixedly connected to the exposed portion of the embedded member.
Further, as shown in fig. 3, the lifting frame 12 includes a vertical brace 121 vertically fixed to the top of the end truss 22, and a horizontal beam 122 horizontally fixed to the top of the vertical brace 121, one end of the horizontal beam 122 extends in a direction close to the other end truss 22, and the hoist 13 is fixed to the extended portion of the horizontal beam 122.
Preferably, the lifting frame 12 further includes a first diagonal brace 123 obliquely supported between the cross beam 122 and the vertical brace 121 and a second diagonal brace 124 obliquely supported between the vertical brace 121 and the top of the end truss 22.
Specifically, as shown in fig. 4, the cross beam 122 is a pipe body with a rectangular cross section, a through hole 1221 is formed in the position of the cross beam 122 corresponding to the rope 131 of the hoist 13, the rope 131 of the hoist 13 passes through the through hole 1221 and extends downward to be fixedly connected with the truss 21, and a plurality of stiffening plates 1222 are arranged inside the cross beam 122 at intervals.
Further, as shown in fig. 5, a sling 14 fixed to an end of the rope 131 close to the truss 21 is further included, and the rope 131 is fixed to the truss 21 by fixedly connecting the sling 14 to the truss 21.
Specifically, as shown in fig. 6, the truss 21 is formed by welding a plurality of circular pipes;
the lifting appliance 14 comprises two opposite connecting plates 141 and a plurality of fixing plates 142 connected between the two connecting plates 141 and arranged at intervals, the ropes 131 penetrate through the fixing plates 142 and are fixedly connected with the fixing plates 142, arc grooves 1411 matched with the circular pipes are formed in the bottoms of the connecting plates 141, and the circular pipes are clamped in the arc grooves 1411 and are fixedly connected with the circular pipes, so that the lifting appliance 14 is fixed to the truss 21.
Preferably, the lifting device 14 further comprises a side plate connected between the fixing plates 142 and a rib plate connected between the connecting plate 141 and the round bar, and the corresponding side of the side plate is fixedly connected with the connecting plate 141.
Preferably, the fixing plates 142 are formed with circular holes for the ropes 131 to pass through, and the ropes 131 are fixedly connected to each fixing plate 142, and the fixing plates 142 can be fastened by knotting the ropes 131, so as to be fixedly connected to the fixing plates 142.
The specific implementation method of the invention is as follows:
pouring concrete at a position corresponding to the end truss 22 and close to the upright column 221 to form a concrete foundation 114, and embedding a buried piece in the concrete foundation 114, wherein the buried piece partially protrudes out of the top surface of the concrete foundation 114;
the vertical rod 111 is fixedly connected with the protruding part of the embedded part, the top of the vertical rod 111 is fixedly connected with the end truss 22, the horizontal rod 112 is connected between the vertical rod 111 and the upright column 221, and the inclined rod 113 is connected between the horizontal rod 112 and the bottom surface of the end truss 22, so that the frame body 11 is formed, the frame body 11 can assist in supporting the end truss 22 and the upright column 221, and the structural stability of the end truss 22 is guaranteed;
vertically and fixedly arranging a vertical support 121 on the top of the end truss 22, installing a cross beam 122 on the top of the vertical support 121, extending the cross beam 122 partially to the direction close to the other end truss 22, arranging an inclined first inclined support 123 between the cross beam 122 and the vertical support 121, and arranging an inclined second inclined support 124 between the vertical support 121 and the top surface of the end truss 22, thereby forming the lifting frame 12;
fixing the lifting device 13 on the extending part of the cross beam 122, and extending the rope 131 of the lifting device 13 to the ground through the through hole 1221 on the cross beam 122;
the circular arc groove 1411 of the lifting appliance 14 is clamped on the circular tube of the truss 21 and fixedly connected with the circular tube, the rope 131 is retracted by the lifting appliance 13, so that the lifting appliance 14 drives the truss 21 to ascend, the truss 21 is lifted to the position between the two opposite end trusses 22, and a constructor can fixedly connect the truss 21 with the end trusses 22.
The invention also provides a lifting method for the lifting structure of the large-span truss, which comprises the following steps:
providing a frame body 11 and a lifting frame 12, fixedly arranging the frame body 11 on the ground, supporting an end truss 22, and arranging the lifting frame 12 on the top of the end truss 22;
providing a lifter 13, and mounting the lifter 13 on the extending part of the lifting frame 12;
the truss 21 is placed on the ground between the two opposite end trusses 22, the rope 131 of the lifting device 13 is fixedly connected with the truss 21, and the rope 131 is retracted by the lifting device 13 to drive the truss 21 to ascend, so that the truss 21 is lifted between the two end trusses 22.
The concrete operation mode of the practical implementation of the lifting method provided by the invention is as follows:
pouring concrete at a position corresponding to the end truss 22 and close to the upright column 221 to form a concrete foundation 114, and embedding a buried piece in the concrete foundation 114, wherein the buried piece partially protrudes out of the top surface of the concrete foundation 114;
the vertical rod 111 is fixedly connected with the protruding part of the embedded part, the top of the vertical rod 111 is fixedly connected with the end truss 22, the horizontal rod 112 is connected between the vertical rod 111 and the upright column 221, and the inclined rod 113 is connected between the horizontal rod 112 and the bottom surface of the end truss 22, so that the frame body 11 is formed, the frame body 11 can assist in supporting the end truss 22 and the upright column 221, and the structural stability of the end truss 22 is guaranteed;
vertically and fixedly arranging a vertical support 121 on the top of the end truss 22, installing a cross beam 122 on the top of the vertical support 121, extending the cross beam 122 partially to the direction close to the other end truss 22, arranging an inclined first inclined support 123 between the cross beam 122 and the vertical support 121, and arranging an inclined second inclined support 124 between the vertical support 121 and the top surface of the end truss 22, thereby forming the lifting frame 12;
fixing the lifting device 13 on the extending part of the cross beam 122, and extending the rope 131 of the lifting device 13 to the ground through the through hole 1221 on the cross beam 122;
the circular arc groove 1411 of the lifting appliance 14 is clamped on the circular tube of the truss 21 and fixedly connected with the circular tube, the rope 131 is retracted by the lifting appliance 13, so that the lifting appliance 14 drives the truss 21 to ascend, the truss 21 is lifted to the position between the two opposite end trusses 22, and a constructor can fixedly connect the truss 21 with the end trusses 22.
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 (10)
1. A hoisting structure for a large span truss to be connected between two opposing end trusses, the hoisting structure comprising:
the frame body is vertically and fixedly arranged on the ground and used for supporting the end truss;
the lifting frame is fixedly arranged at the top of the end truss, and the lifting frame part extends towards the direction close to the truss at the other end; and
the lifting appliance is wound with a rope, the rope is fixedly connected with the trusses, and then the lifting appliance collects the rope to drive the trusses to ascend, so that the trusses are lifted to the position between the two end trusses.
2. The lifting structure for a large-span truss of claim 1 wherein a column is erected on the ground corresponding to the position of the end truss, the end truss being fixed to the top of the column;
the support body is including corresponding the end truss setting and vertical montant and the level setting that set firmly on ground just connect in the montant with horizon bar between the stand, the top of montant with the bottom fixed connection of end truss is in order to support the end truss.
3. The lifting structure for a long-span truss of claim 2 wherein the frame body further comprises diagonal members connected obliquely between the horizontal members and the bottom surfaces of the end trusses.
4. The hoisting structure for a large-span truss of claim 2, wherein the frame body further comprises a concrete foundation cast on the ground and an embedded member embedded in the concrete foundation and partially exposed from the top surface of the concrete foundation, and the bottom of the vertical rod is fixedly connected to the exposed portion of the embedded member.
5. The lifting structure for a large-span truss according to claim 1, wherein the lifting frame includes a vertical brace vertically fixed to the top of the end truss and a horizontal beam horizontally disposed and fixed to the top of the vertical brace, one end of the horizontal beam extends in a direction close to the truss at the other end, and the hoist is fixed to the extended portion of the horizontal beam.
6. The lifting structure for a large-span truss of claim 5 wherein the lifting frame further includes a first diagonal brace obliquely supported between the cross beam and the vertical brace and a second diagonal brace obliquely supported between the vertical brace and the top of the end truss.
7. The lifting structure for the large-span truss according to claim 5, wherein the cross beam is a pipe body with a rectangular cross section, the cross beam is provided with a through hole corresponding to the rope of the hoist, the rope of the hoist extends downwards through the through hole to be fixedly connected with the truss, and a plurality of stiffening plates are arranged inside the cross beam at intervals.
8. The hoisting structure for a large-span truss of claim 1 further comprising a spreader secured to an end of the rope proximate the truss, the spreader being fixedly connected to the truss such that the rope is secured to the truss.
9. The lifting structure for a large-span truss of claim 8 wherein the truss is formed by welding a plurality of round tubes;
the hoist includes two relative connecting plates that set up and connects in two between the connecting plate and a plurality of fixed plates that the interval set up, the rope is worn to locate a plurality of the fixed plate and with fixed plate fixed connection, the bottom of connecting plate be formed with pipe assorted circular arc groove, through circular arc groove card is located the pipe and with pipe fixed connection, so that the hoist is fixed in the truss.
10. A method of lifting a lifting structure for a large span truss as claimed in claim 1 including the steps of:
providing the frame body and the lifting frame, fixedly arranging the frame body on the ground, supporting the end truss, and arranging the lifting frame on the top of the end truss;
providing the hoist, and mounting the hoist to the extended portion of the lifting frame;
the truss is arranged on the ground between the two opposite end trusses, the rope of the lifting device is fixedly connected with the truss, and the lifting device is used for retracting the rope to drive the truss to ascend, so that the truss is lifted to the position between the two end trusses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110321427.1A CN113136961A (en) | 2021-03-25 | 2021-03-25 | Lifting structure for large-span truss and lifting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110321427.1A CN113136961A (en) | 2021-03-25 | 2021-03-25 | Lifting structure for large-span truss and lifting method thereof |
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| CN113136961A true CN113136961A (en) | 2021-07-20 |
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| CN202110321427.1A Pending CN113136961A (en) | 2021-03-25 | 2021-03-25 | Lifting structure for large-span truss and lifting method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114439249A (en) * | 2022-04-07 | 2022-05-06 | 中铁建工集团有限公司 | Construction method for lifting large-span triangular truss through air swivel |
| CN115324360A (en) * | 2022-07-27 | 2022-11-11 | 成都建工第四建筑工程有限公司 | Construction method of large-span suspended truss |
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| CN110512875A (en) * | 2019-08-19 | 2019-11-29 | 北京市机械施工有限公司 | A kind of method for improving of large-span truss structure |
| CN111519767A (en) * | 2020-05-12 | 2020-08-11 | 上海建工一建集团有限公司 | Integral lifting reverse construction system and method for multi-channel connected truss |
| CN112252482A (en) * | 2020-12-07 | 2021-01-22 | 中铁建设集团华北工程有限公司 | Hydraulic lifting device for steel structure roof and construction method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0726726A (en) * | 1993-05-14 | 1995-01-27 | Mitsubishi Heavy Ind Ltd | Zone module construction method for constructing steel structure |
| JP2000104221A (en) * | 1998-09-28 | 2000-04-11 | Nkk Corp | Combined truss bridge and erection method of the same |
| CN105822066A (en) * | 2016-04-07 | 2016-08-03 | 中建六局第三建筑工程有限公司 | Construction method for underground large-span large-space ultrahigh non-column steel structural tube truss |
| CN208249704U (en) * | 2018-04-08 | 2018-12-18 | 中建三局安装工程有限公司 | A kind of townhouse carrying pole type hoisting frame being mounted laterally based on concrete isolated beam |
| CN109610849A (en) * | 2018-12-12 | 2019-04-12 | 中国建筑第四工程局有限公司 | A kind of construction method of large span skybridge truss |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114439249A (en) * | 2022-04-07 | 2022-05-06 | 中铁建工集团有限公司 | Construction method for lifting large-span triangular truss through air swivel |
| CN115324360A (en) * | 2022-07-27 | 2022-11-11 | 成都建工第四建筑工程有限公司 | Construction method of large-span suspended truss |
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Application publication date: 20210720 |