CN109505424A - A kind of novel the large-span steel pipe truss unloading bracket that can accurately adjust and its application method - Google Patents
A kind of novel the large-span steel pipe truss unloading bracket that can accurately adjust and its application method Download PDFInfo
- Publication number
- CN109505424A CN109505424A CN201811275098.6A CN201811275098A CN109505424A CN 109505424 A CN109505424 A CN 109505424A CN 201811275098 A CN201811275098 A CN 201811275098A CN 109505424 A CN109505424 A CN 109505424A
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- China
- Prior art keywords
- truss
- platform
- bolt
- steel pipe
- stud
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- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G25/00—Shores or struts; Chocks
- E04G25/02—Shores or struts; Chocks non-telescopic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- 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
Abstract
Invention provides the novel large-span steel pipe truss unloading bracket that can accurately adjust of one kind and its application method.The unloading bracket includes superstructure, middle deck structure and substructure.The superstructure includes two bolt branch studs, two short branch stud and two jack.The substructure is standard section of tower crane.When work, truss is held on tile rest.The cylinder head of jack and the lower surface of truss offset.Truss rises, and control bolt branch stud makes truss be detached from tile rest.It falls jack after rise and completes unloading.Bracket production is simple, mostly welds, construction site can make.Construction is quickly accurate.It is determined to use standard knot quantity according to truss depth, avoids resources idle.It economizes on resources, reduces cost.
Description
Technical field
The present invention relates to building engineering field, in particular to large-span steel pipe truss unloads bracket.
Background technique
Currently, Long-Span Steel Space Structures are widely used due to its good mechanical property, in recent years due to production
The change of the needs and aesthetic requirement of life, span is huge, complex contour spatial steel structure construction demand is increasing, adjoint
And what is come is that increasingly complex structure design and engineering construction are realized.In large-span steel pipe truss construction, need to set up a large amount of
Support frame and operating platform.The span of some steel constructions is big, and height is high, it is contemplated that the effect of load, traditional sediment outflow unloading
Method and hot melt put the synchronous unloading low precision of a method, are unable to satisfy present construction requirement.Now mostly use jack realize greatly across
Spend the unloading of spatial steel structure.This method meets synchronous unloading required precision, but is chiefly used in support frame bottom unloading, behaviour at present
Make difficulty increase, and bottom is not completely fixed, if inconsistent by side interference and jack stroke, may cause support frame
Lateral deformation and unstability, security performance are lower.Mechanical equipment can be used bottom jack is fixed, but this way meeting
The substantial increase of construction cost is caused, some equipment prices are expensive, and it is complicated for operation, height is required to operator, this is also to hinder
The main reason for lifting jack unloading method develops in large-span steel construction.
Summary of the invention
The object of the present invention is to provide a kind of novel large-span steel pipe truss unloading bracket that can accurately adjust and its make
With method, to solve problems of the prior art.
To realize the present invention purpose and the technical solution adopted is that a kind of such, novel large span that can accurately adjust
Steel pipe truss unloads bracket, including superstructure, middle deck structure and substructure.
The middle deck structure includes the H profile steel platform beams of two parallel arrangements, and is weldingly fixed on H profile steel and puts down
The workbench and conversion platform of platform crossbeam top flange.The workbench generally plate structure.The workbench it is upper
Female bayonet slot is provided in plate face.The middle part of H profile steel platform beams is arranged in the workbench.The conversion platform is flat
Straight panel.The end of H profile steel platform beams is arranged in the conversion platform.It is connected with and takes between the workbench and conversion platform
Fishplate bar.
The superstructure includes two bolt branch studs, two short branch stud and two jack.The bolt rest
Column includes two section round steel pipes and adjustable bolt ring that two pitch circle shape steel pipes link together.The round steel pipe end
With external screw thread.The adjustable bolt ring has internal screw thread.The upper end of the bolt branch stud is provided with tile rest, lower end
It is provided with several stud diagonal braces.Described branch stud diagonal brace one end is connected with bolt branch stud, the other end and H profile steel platform beams
It is connected.The bolt branch stud carries out the height of tile rest by the depth that round steel pipe screws in adjustable bolt ring micro-
It adjusts.Two bolt branch studs are arranged in the both ends of H profile steel platform beams.The short branch stud and jack are arranged in work
At the female bayonet slot of platform.The pedestal of the jack is mounted in female bayonet slot.
The substructure is standard section of tower crane.The H profile steel platform beams are set up and are welded at the top of standard section of tower crane.
When work, truss is held on tile rest.The cylinder head of jack and the lower surface of truss offset.Truss rises,
Control bolt branch stud makes truss be detached from tile rest.It falls jack after rise and completes unloading.
Further, several steel pipe crossbeams are provided between the H profile steel platform beams of two parallel arrangements.
Further, the lower end of the bolt branch stud is provided with 4 branch stud diagonal braces.4 branch stud diagonal brace is with four
The formal distribution of pyramid.The bolt branch stud is welded in the vertex of a cone.
Further, the lower face of the workbench is welded with H profile steel in female bayonet slot corresponding position.
Further, the standard section of tower crane is welded by pylon column, tower frame cross beam and pylon diagonal brace.The tower crane
Transition platform is erected in the middle part of standard knot.The transition platform is connect by ladder with conversion platform.The pylon column
Diagonal brace of putting more energy into is additionally provided between shaft and the lower surface of H profile steel platform beams.
Invention additionally discloses a kind of systems about the above-mentioned novel large-span steel pipe truss unloading bracket that can accurately adjust
Make method, comprising the following steps:
1) in standard section of tower crane upper surface welded H section steel platform beams.
2) it is measured by plane positioning and center, it is flat successively to set up conversion platform, work in H profile steel platform beams upper surface
Platform and lapping plate.
3) short branch stud is welded in the female bayonet slot of workbench, and is laid with jack.
4) branch stud diagonal brace and bolt branch stud are welded.
Make invention additionally discloses a kind of about the above-mentioned novel large-span steel pipe truss unloading bracket that can accurately adjust
With method, comprising the following steps:
1) truss is slowly jacked using jack, truss is made to be detached from tile rest.
2) adjustable bolt ring, the decline of bolt branch stud are screwed clockwise.
3) vertical displacement between truss and tile rest and the absolute altitude of tile rest are measured using level, and is remembered
Record.
4) after 15min, step 2)~3 are repeated) until the vertical displacement between truss and rest tile is obtained without significant change
Deflection deformation amount out.
Further, the internal screw thread density satisfaction of adjustable bolt ring often twists a circle bolt branch stud and rises or falls 1mm.It unloads
When load, adjustable bolt ring examines truss deflection deformation amount with the circle number screwed.
Make invention additionally discloses a kind of about the above-mentioned novel large-span steel pipe truss unloading bracket that can accurately adjust
With method, comprising the following steps:
1) truss is slowly jacked using jack, truss is made to be detached from tile rest.Wherein, the truss just and tile
A certain number of gaskets are pre-placed between rest.
2) one piece of gasket is extracted.
3) vertical displacement between truss and remaining gasket is measured using level.
4) after 15min, step 2)~3 are repeated), become until measuring vertical displacement between truss and remaining gasket without obvious
Change.
The solution have the advantages that unquestionable:
A. unloading bracket height is finely adjusted by bolt branch stud and adjustable bolt ring, so that being unloaded at the top of jack
Load becomes a reality；
B. bracket production is simple, mostly welds, construction site can make；Construction is quickly accurate；It is determined according to truss depth
Surely standard knot quantity is used, resources idle is avoided；
C. bracket material is easily obtained.Special material and many instruments, adjustable bolt ring and bolt rest are not used
Column is relatively common；Market lease is general；Resource recycling
D. installation steps are few, are welded to connect reliable, working security height；
E. implement easy to operate, operator is required low, can accelerate the duration, reduce cost.
F. bracket is reusable, economizes on resources, and reduces cost.
Detailed description of the invention
Fig. 1 is carrier structure schematic diagram；
Fig. 2 is carrier structure axonometric drawing；
Fig. 3 is bolt branch stud schematic diagram；
Fig. 4 is adjustable bolt ring schematic diagram；
Fig. 5 is operating platform schematic diagram；
Fig. 6 transition platform and conversion platform connection schematic diagram；
Fig. 7 transition platform structural schematic diagram.
In figure: tile rest 1, adjustable bolt ring 2, bolt branch stud 3, bolt branch stud diagonal brace 4, platform beams 5, steel
Pipe crossbeam 6, conversion platform 7, connecting plate 8, short branch stud 9, jack 10, operating platform 11, diagonal brace 12 of putting more energy into, ladder 13, mistake
Platform 14, tower frame cross beam 15 and pylon diagonal brace 16 are crossed, pylon column 17 unloads crossbeam 18.
Specific embodiment
Below with reference to embodiment, the invention will be further described, but should not be construed the above-mentioned subject area of the present invention only
It is limited to following embodiments.Without departing from the idea case in the present invention described above, according to ordinary skill knowledge and used
With means, various replacements and change are made, should all include within the scope of the present invention.
Embodiment 1:
Referring to Fig. 1 and Fig. 2, the present embodiment discloses a kind of novel large-span steel pipe truss unloading support that can accurately adjust
Frame, including superstructure, middle deck structure and substructure.
Referring to Fig. 5, the middle deck structure includes the H profile steel platform beams 5 of two parallel arrangements, and is welded and fixed
Workbench 11 and conversion platform 7 in 5 top surface of H profile steel platform beams.The H profile steel platform beams 5 of two parallel arrangements
Between be provided with several steel pipe crossbeams 6.The workbench 11 generally plate structure.On the upper face of the workbench 11
It is provided with female bayonet slot.The lower face of the workbench 11 is welded with H profile steel 18 in female bayonet slot corresponding position.Institute
State the middle part that H profile steel platform beams 5 are arranged in workbench 11.The conversion platform 7 is slide plate.The conversion platform 7 is set
It sets in the end of H profile steel platform beams 5.Lapping plate 8 is connected between the workbench 11 and conversion platform 7.
The superstructure includes two bolt branch stud 3, two short branch studs 9 and two jack 10.Referring to Fig. 3,
The bolt branch stud 3 includes two section round steel pipes and the adjustable bolt ring 2 that two pitch circle shape steel pipes link together.Institute
Round steel pipe end is stated with external screw thread.Referring to fig. 4, the adjustable bolt ring 2 has internal screw thread.The bolt branch stud 3
The depth of adjustable bolt ring 2 is screwed in bracket high fine-tuning by round steel pipe.The upper end of the bolt branch stud 3 is provided with
Tile rest 1, lower end is provided with, 4 branch stud diagonal braces 4.The lower end of the bolt branch stud 3 is provided with 4 branch stud diagonal braces
4.4 branch studs diagonal brace 4 is with the formal distribution of rectangular pyramid.The bolt branch stud 3 is welded in the vertex of a cone.The branch stud is oblique
It supports 4 one end to be connected with bolt branch stud 3, the other end is connected with H profile steel platform beams 5.Two bolt branch studs 3 are arranged in
5 both ends of H profile steel platform beams.The short branch stud 9 and jack 10 are arranged at the female bayonet slot of workbench 11.It is described
In the pedestal of jack 10 is mounted at female bayonet slot.
The substructure is standard section of tower crane.The H profile steel platform beams 5 are set up and are welded on standard section of tower crane top
Portion.The standard section of tower crane is welded by pylon column 17, tower frame cross beam 15 and pylon diagonal brace 16.Referring to Fig. 6 and Fig. 7,
Transition platform 14 is erected in the middle part of the standard section of tower crane.The transition platform 14 is connect by ladder 13 with conversion platform 7.
Diagonal brace 12 of putting more energy into is additionally provided between the shaft of the pylon column 17 and the lower surface of H profile steel platform beams 5.
When work, truss is held on tile rest 1.The cylinder head of jack 10 and the lower surface of truss offset.On truss
It rises, control bolt branch stud 3 makes truss be detached from tile rest 1.It falls jack after rise and completes unloading.
Embodiment 2:
The present embodiment discloses a kind of production side of large-span steel pipe truss unloading bracket novel described in embodiment 1
Method, comprising the following steps:
1) it chooses standard knot at the top of support frame and establishes central point at middle part, set up transition platform 14 and welding ladder 13.
2) in standard section of tower crane upper surface welded H section steel platform beams 5.
3) it is measured by plane positioning and center, successively sets up conversion platform 7, work in 5 upper surface of H profile steel platform beams
Platform 11 and lapping plate 8.
4) short branch stud 9 is welded in the female bayonet slot of workbench 11, and is laid with jack 10.
5) branch stud diagonal brace 4 and bolt branch stud 3 are welded.
Embodiment 3:
The present embodiment discloses a kind of novel large-span steel pipe truss unloading support that can accurately adjust described in embodiment 1
The accurate regulatory function of frame, when meeting the unloading of part engineering truss structure the needs of displacement monitoring, comprising the following steps:
1) fine-adjustment jack 10 is placed on the steel truss on bracket and is slowly jacked, and steel truss is made to be detached from tile branch just
Support 1.
2) bolt ring 2 will be adjusted to screw clockwise one week, bolt branch stud 3 declines 1mm at this time.Wherein, bolt ring 2 is adjusted
Internal screw thread density meet often twist one circle bolt branch stud 3 rise or fall 1mm.It when unloading, screws and adjusts bolt ring 2, with rotation
Stubborn circle number examines truss deflection deformation amount.
3) absolute altitude of the vertical displacement and rest tile between truss and rest tile 1 is measured using level and is remembered
Record.
4) it measures after 15min, illustrates if measuring vertical displacement between truss and rest tile 1 without significant change again
Deflection deformation is controlled in 1mm.If truss has contradicted tile rest 1, illustrate that deflection deformation is still continuing, repetition step 2)~
3).Until finally measuring vertical displacement between truss and rest tile 1 obtains deflection deformation amount without significant change.
Embodiment 4:
The present embodiment discloses a kind of novel large-span steel pipe truss unloading support that can accurately adjust described in embodiment 1
The application method of frame, comprising the following steps:
1) fine-adjustment jack 10, the steel truss being placed on tile rest 1 are slowly jacked, and are detached from steel truss just
Gasket.Wherein, keep the height of bracket constant, in advance on tile rest 1 place certain amount different-thickness (such as 0.1mm,
0.2mm, 0.5mm, 1mm) gasket, quantity and the specification of gasket are extracted by control to detect the variable quantity of amount of deflection.In this reality
It applies in example, copper sheet or iron plate can be selected in gasket.
2) gasket with a thickness of 1mm is extracted.
3) vertical displacement between truss and remaining gasket is measured using level.
4) it measures after 15min, illustrates if measuring vertical displacement between truss and remaining gasket without significant change again
Deflection deformation is controlled in 1mm.If truss has contradicted remaining gasket, illustrate that deflection deformation is still continuing, repetition step 2)~
3).It is monitored successfully until finally measuring vertical displacement between truss and remaining gasket without significant change, i.e. deflection deformation amount.
Claims (9)
1. a kind of novel large-span steel pipe truss unloading bracket that can accurately adjust, it is characterised in that: including superstructure, in
Portion's platform structure and substructure；
The middle deck structure includes the H profile steel platform beams (5) of two parallel arrangements, and is weldingly fixed on H profile steel and puts down
The workbench (11) and the conversion platform (7) of platform crossbeam (5) top flange；The workbench (11) generally plate knot
Structure；Female bayonet slot is provided on the upper face of the workbench (11).The workbench (11) is arranged in H profile steel platform
The middle part of crossbeam (5)；The conversion platform (7) is slide plate；The conversion platform (7) is arranged in H profile steel platform beams (5)
End；Lapping plate (8) are connected between the workbench (11) and conversion platform (7)；
The superstructure includes two bolt branch studs (3), two short branch stud (9) and two jack (10)；The spiral shell
Bolt branch stud (3) includes two section round steel pipes and adjustable bolt ring (2) that two pitch circle shape steel pipes link together；It is described
Round steel pipe end has external screw thread；The adjustable bolt ring (2) has internal screw thread；The upper end of the bolt branch stud (3)
It is provided with tile rest (1), lower end is provided with several stud diagonal braces (4)；The branch stud diagonal brace (4) one end and bolt rest
Column (3) is connected, and the other end is connected with H profile steel platform beams (5)；The bolt branch stud (3) is screwed in adjustable by round steel pipe
The depth of section bolt ring (2) is finely adjusted the height of tile rest (1)；Two bolt branch studs (3) are arranged in H profile steel
The both ends of platform beams (5)；The short branch stud (9) and jack (10) are arranged in the female bayonet slot of workbench (11)
Place；The pedestal of the jack (10) is mounted in female bayonet slot；
The substructure is standard section of tower crane；The H profile steel platform beams (5) are set up and are welded at the top of standard section of tower crane；
When work, truss is held on tile rest (1)；The cylinder head of jack (10) and the lower surface of truss offset；On truss
It rises, control bolt branch stud (3) makes truss be detached from tile rest (1)；It falls jack after rise and completes unloading.
2. the novel large-span steel pipe truss unloading bracket that can accurately adjust of one kind according to claim 1, feature
It is: is provided with several steel pipe crossbeams (6) between the H profile steel platform beams (5) of two parallel arrangements.
3. the novel large-span steel pipe truss unloading bracket that can accurately adjust of one kind according to claim 1 or 2, special
Sign is: the lower end of the bolt branch stud (3) is provided with 4 branch stud diagonal braces (4)；4 branch studs diagonal brace (4) is with four
The formal distribution of pyramid；The bolt branch stud (3) is welded in the vertex of a cone.
4. the novel large-span steel pipe truss unloading bracket that can accurately adjust of one kind according to claim 1 or 3, special
Sign is: the lower face of the workbench (11) is welded with H profile steel (18) in female bayonet slot corresponding position.
5. the novel large-span steel pipe truss unloading bracket that can accurately adjust of one kind according to claim 1, feature
Be: the standard section of tower crane is welded by pylon column (17), tower frame cross beam (15) and pylon diagonal brace (16)；The tower
It hangs and is erected with transition platform (14) in the middle part of standard knot；The transition platform (14) is connected by ladder (13) and conversion platform (7)
It connects；Diagonal brace of putting more energy into (12) are additionally provided between the shaft of the pylon column (17) and the lower surface of H profile steel platform beams (5).
6. a kind of production side about the large-span steel pipe truss unloading bracket that can accurately adjust novel described in claim 1
Method, which comprises the following steps:
1) in standard section of tower crane upper surface welded H section steel platform beams (5)；
2) it is measured by plane positioning and center, successively sets up conversion platform (7), work in H profile steel platform beams (5) upper surface
Platform (11) and lapping plate (8)；
3) the short branch stud (9) of welding in the female bayonet slot of workbench (11), and it is laid with jack (10)；
4) branch stud diagonal brace (4) and bolt branch stud (3) are welded.
7. a kind of application method about the large-span steel pipe truss unloading bracket that can accurately adjust novel described in claim 1
Characterized by comprising the following steps:
1) truss is slowly jacked using jack (10), truss is made to be detached from tile rest (1)；
2) it screws adjustable bolt ring (2) clockwise, bolt branch stud (3) decline；
3) vertical displacement between truss and tile rest (1) and the absolute altitude of tile rest (1) are measured using level, and carried out
Record；
4) after 15min, step 2)~3 are repeated) until the vertical displacement between truss and rest tile is obtained and is scratched without significant change
Spend deflection.
8. the user of the novel large-span steel pipe truss unloading bracket that can accurately adjust of one kind according to claim 7
Method, it is characterised in that: the internal screw thread density of adjustable bolt ring (2) meets often stubborn circle bolt branch stud (3) and rises or falls
1mm；When unloading, adjustable bolt ring (2) examines truss deflection deformation amount with the circle number screwed.
9. a kind of user about the large-span steel pipe truss unloading bracket that can accurately adjust novel described in claim 1
Method, which comprises the following steps:
1) truss is slowly jacked using jack (10), truss is made to be detached from tile rest (1)；Wherein, the truss just and
Tile rest is pre-placed a certain number of gaskets between (1)；
2) one piece of gasket is extracted；
3) vertical displacement between truss and remaining gasket is measured using level；
4) after 15min, step 2)~3 are repeated), until measuring between truss and remaining gasket vertical displacement without significant change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811275098.6A CN109505424B (en) | 2018-10-30 | 2018-10-30 | Large-span steel pipe truss unloading bracket capable of being accurately adjusted and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811275098.6A CN109505424B (en) | 2018-10-30 | 2018-10-30 | Large-span steel pipe truss unloading bracket capable of being accurately adjusted and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109505424A true CN109505424A (en) | 2019-03-22 |
| CN109505424B CN109505424B (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811275098.6A Active CN109505424B (en) | 2018-10-30 | 2018-10-30 | Large-span steel pipe truss unloading bracket capable of being accurately adjusted and using method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN109505424B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111441596A (en) * | 2020-04-03 | 2020-07-24 | 中电建路桥集团有限公司 | Support-free jig frame universal device for space special-shaped truss construction and construction method thereof |
| CN112392259A (en) * | 2020-12-09 | 2021-02-23 | 北京建工集团有限责任公司 | Synchronous grading unloading method for steel truss with jacking oil cylinder replaced by double supporting points |
| CN114439252A (en) * | 2021-12-09 | 2022-05-06 | 陕西建工第一建设集团有限公司 | Main arch supporting device for hoisting large-span steel structure roof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111441596A (en) * | 2020-04-03 | 2020-07-24 | 中电建路桥集团有限公司 | Support-free jig frame universal device for space special-shaped truss construction and construction method thereof |
| CN112392259A (en) * | 2020-12-09 | 2021-02-23 | 北京建工集团有限责任公司 | Synchronous grading unloading method for steel truss with jacking oil cylinder replaced by double supporting points |
| CN112392259B (en) * | 2020-12-09 | 2022-02-01 | 北京建工集团有限责任公司 | Synchronous grading unloading method for steel truss with jacking oil cylinder replaced by double supporting points |
| CN114439252A (en) * | 2021-12-09 | 2022-05-06 | 陕西建工第一建设集团有限公司 | Main arch supporting device for hoisting large-span steel structure roof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109505424B (en) | 2020-07-17 |
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