CN108222480A - A kind of high-altitude overhanging main truss posture steel mould base construction platform - Google Patents
A kind of high-altitude overhanging main truss posture steel mould base construction platform Download PDFInfo
- Publication number
- CN108222480A CN108222480A CN201711346271.2A CN201711346271A CN108222480A CN 108222480 A CN108222480 A CN 108222480A CN 201711346271 A CN201711346271 A CN 201711346271A CN 108222480 A CN108222480 A CN 108222480A
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- truss
- main couple
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- construction platform
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 42
- 239000010959 steel Substances 0.000 title claims abstract description 42
- 238000009411 base construction Methods 0.000 title claims abstract description 18
- 238000010276 construction Methods 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims description 7
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/18—Scaffolds essentially supported by building constructions, e.g. adjustable in height supported by cantilevers or other provisions mounted in openings in the building, e.g. window openings
-
- 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
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
- E04G5/045—Means for fastening, supporting, or bracing scaffolds on or against building constructions for fastening scaffoldings on profiles, e.g. I or H profiles
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
A kind of high-altitude overhanging main truss posture steel mould base construction platform, belongs to construction engineering technical field, which includes main couple, and jack truss, rod piece, splice plate and high-strength bolt are safeguarded in edge.Compared with prior art, this stage+module mode is simple, applied widely, and safety stock is high, and deflection is small, and steel using amount is few, and comprehensive cost is relatively low.In the construction process, most loads on platform are passed to concrete column by main couple by respective nodes construction measure, and small part load is passed to beams of concrete by jack truss by respective nodes construction measure.This platform relies on lower two layers of concrete structure to support, and undertakes the various loads that construction platform is transmitted to, makes support construction more secured, deflection smaller.Suitable for building for high-altitude overhanging construction platform.
Description
Technical field
The invention belongs to construction engineering technical fields, are related to a kind of high-altitude overhanging main truss posture steel mould base construction platform.
Background technology
Recently as China's expanding economy, high level, high-rise building are more and more, and architectural image also makes rapid progress.
Many high-rise, high-rise buildings, in order to protrude elevation of building moulding and expand top using space, occur being permitted in design
More high-altitude overhanging cast-in-place concrete structures, wherein being no lack of there are the very big structure of some overhanging spans, this is to natively comparing danger
The work progress of danger proposes higher requirement.
Suspended structure at high altitude load is larger, to construction when mould bases support platform bearing capacity, rigidity and stability
It is it is required that very high.In addition it is again working at height, this requires in the construction process, entire mould bases support platform has absolute safety
Reliability.The traditional construction method of such engineering is roughly divided into following two：(1) landing high-altitude full framing is set up, i.e., by ground
After the roof reinforcement of lower room, full hall fastener type steel pipe formwork-support is set up to desired height of constructing.For high where cantilevered structure
For the higher engineering of degree, such method material requested dosage is very big, and construction dismounting is complicated, and stability is difficult to ensure that, because
This is not suitable for suspended structure at high altitude.(2) the overhanging support system being made of overhanging type steel beam and diagonal brace.Although the method relatively on
A kind of method is improved, but is only suitable for the smaller structure of cantilever span, and longer for overhanging, larger structure of conducting oneself with dignity is similary
It is inapplicable.
Based on this, the present invention proposes a kind of high-altitude overhanging main truss posture steel mould base construction platform, has high capacity, just
Degree is big, easy for assemble or unload, applied widely, and safety stock is high, and steel using amount is few, comprehensive lower-cost advantage, particularly suitable
In corner, there are the skyscrapers of suspended structure at high altitude.
Invention content
The present invention provides a kind of high-altitude overhanging main truss posture steel mould base construction platform, to solve in high-rise, high-rise building
In, set up long the problem of overhanging cast-in-place concrete structure construction platform.
To achieve the above object, the present invention adopts the following technical scheme that：A kind of high-altitude overhanging main truss posture steel mould base construction
Platform, the platform include：Rod piece (3), splice plate (4) and high-strength bolt (5) are safeguarded in main couple (1), jack truss (2), edge.
The main couple be two Pin intersect main couple, material selection intensity be Q345 H profile steel, welding or rolling and
Into sectional dimension should as needed be calculated determining by technical staff.Each truss structure include top boom, lower boom, perpendicular web member and
Diagonal web member, truss depth are the floor height of concrete structure on the middle and senior level of constructing, and angle is kept between chord member and diagonal web member, adjacent web members
At about 45 degree, make truss stress more reasonable.Simultaneously main couple web member design in, should make as possible more web member be in by
Tension state avoids generating the stable problem of steel construction.
The main couple is the main bearing member of entire formwork system, not only undertakes itself and the lotus from body
It carries, while undertakes the load that jack truss around is transmitted to, and deliver load to concrete structure.
The jack truss material selection intensity is the H profile steel of Q345, welds or rolls, sectional dimension should be by technology
Personnel calculate determine as needed.Jack truss equally includes top boom, lower boom, perpendicular web member and diagonal brace.Intersecting in main couple
The jack truss in portion is known as cross beam truss, and chord member one end is connected with main couple, the other end by respective nodes construction measure with
Concrete structured beam is connected.A cross beam truss load part passes to concrete structured beam, and another part passes to master
Truss.Intersecting the jack truss outside main couple, one end is connected with main couple, and the other end, will load thereon similar to pure overhanging
Pass to main couple.
Safeguard that rod piece for H profile steel, is welded or rolled, sectional dimension should be as needed by technical staff in the edge
It is determined with detailing requiments.Edge safeguards that rod piece is arranged on the outermost edge of entire truss, main to play contact and maintenance, usually
Stress is smaller, and in order to mitigate dead weight and saving steel, section is usually less than the rod piece of main couple and jack truss.
The splice plate and high-strength bolt is the connecting elements of entire truss, and splice plate is rectangular steel plates, including upper and lower
The splice plate on the edge of a wing and web splice plate；High-strength bolt material should be 45# steel or steel alloy, and intensity rank should be 10.9 grades or more
Height, quantity, position, diameter and length should be determined by calculating and detailing requiments.
During two crossing rod piece connections, typically main stressed member is continuous, is disconnected with respect to secondary member.Secondary member
It is welded when one small part is prefabricated in the factory with main rod piece, remaining part passes through splice plate and high-strength bolt and weldering in lifting
Socket part point connection.
Compared with prior art, a kind of high-altitude overhanging main truss posture steel mould base construction platform of the present invention, suitable for for high-altitude
There is the cast-in-place concrete structure erection construction platform of overhanging in corner, have the advantage that：
(1) bearing capacity is big, and safety stock is high.By the space steel mould base that height is floor height, entire mould bases is made to become one
Space-load system rather than single rod piece stress substantially increase the bearing capacity of construction supporting platform.
(2) rigidity is big, and deflection is small.Entire formwork system each rod piece in loading process connects each other, and compatible deformation adds
There are many spaces again to erect the presence of web member and diagonal web member, for independent rod piece, substantially increase entire Construction Support
The rigidity of platform, so as to which its deflection is reduced to minimum, so as to ensure that the required precision of construction to greatest extent.
(3) it is easy for assemble or unload.Entire truss is used by the way of prefabrication, on-site consolidation between each truss rod
The connection mode of high-strength bolt, avoids high-altitude wet work, it is ensured that quality of connection.
Description of the drawings
Fig. 1 is a kind of three-dimensional effect diagram of high-altitude overhanging main truss posture steel mould base construction platform.
Fig. 2 is main couple elevation in a kind of high-altitude overhanging main truss posture steel mould base construction platform.
Fig. 3 is two rod piece assembly node stereogram of truss in a kind of high-altitude overhanging main truss posture steel mould base construction platform.
Specific embodiment
Below in conjunction with the accompanying drawings and example, the specific embodiment of the present invention is described in further detail.Following instance is used
In illustrating the present invention, but be not limited to the scope of the present invention.
In this example, the sectional dimensions of all rod pieces, splicing board size, high-strength bolt model need technical staff according to
Practical Project is determined by calculating with detailing requiments.In addition it is designing in installation process, ensureing platform pricncipal rafter upper table
Face is conducive to the progress of construction in later period in identical height level.
As shown in Figs. 1-3, a kind of high-altitude overhanging main truss posture steel mould base construction platform, construction method are as follows：
The first step when concrete structure construction is to respective storey, wherein will be hung to desired height by a Pin main couples, pass through
Corresponding node connection measure is connected with concrete column.For example, it is desired to the High Large Cantilever concrete structure poured is in n-th layer building
Height where plate, then, entire construction platform needs are built in (n-1)th layer of entire space.That is space steel mould base winds up
Bar and the concrete column phase anchor connection at (n-1)th layer of floor height, the concrete column at lower boom and the n-th -2 layers floor height
Phase anchor connection, entire mould bases height are floor height.
The segmentation of another Pin main couples is hung at desired height, passes through splice plate, high-strength bolt and reserved by second step
Two Pin main couples are bolted by hole, and guarantee has enough bonding strengths.
Third walks, and after two Pin main couple rigging outs, re-segmenting lifts jack truss.Jack truss and main couple, jack truss
It is equally connect between jack truss with high-strength bolt, and ensures bonding strength.Part jack truss is needed through corresponding node structure
Make measure and beams of concrete anchor connection.
Edge after primary and secondary truss rigging out, is safeguarded that rod piece is hung to desired height, with main couple or secondary purlin by the 4th step
Spliced between frame by high-strength bolt.
Whether the 5th step after entire space steel mould base rigging out, reaches requirement, Ran Hou with instrument detection installation accuracy
I-steel or steel plate etc. are completely spread on pricncipal rafter, finds out a complete plane, the bottom surface as entire construction platform.
Claims (6)
1. a kind of high-altitude overhanging main truss posture steel mould base construction platform, it is characterised in that：The platform includes main couple (1), secondary purlin
Rod piece (3), splice plate (4) and high-strength bolt (5) are safeguarded in frame (2), edge；Main couple (1) by being connected with concrete structure column,
Jack truss (2) is connected by joint structure measure with concrete structured beam；Bar is safeguarded at main couple (1), jack truss (2) and edge
It is connected between each rod piece by splice plate (4) and high-strength bolt (5) in part (3), so as to which each section is spliced into an entirety
Space steel mould base forms space-load system；The overhanging direction of main couple (1) should respectively with the concrete knot of its anchor connection
The length direction of the structure column back rest is consistent.
2. a kind of high-altitude overhanging main truss posture steel mould base construction platform according to claim 1, it is characterised in that：Described
Main couple (1) is the main couple that two Pin intersect, and material selection intensity is the H profile steel of Q345, welds or rolls；Every Pin purlins
Frame includes top boom, lower boom, perpendicular web member and diagonal web member, and truss depth is the floor height of concrete structure on the middle and senior level of constructing, chord member
Angle is maintained at 45 degree between diagonal web member and adjacent web members；The main couple that two Pin intersect passes through splice plate (4) and high-strength spiral shell
Bolt (5) connects.
3. a kind of high-altitude overhanging main truss posture steel mould base construction platform according to claim 1, it is characterised in that：Described
The material selection intensity of jack truss (2) is the H profile steel of Q345, welds or rolls；Jack truss (2) includes top boom, lower edge
Bar, perpendicular web member and diagonal brace；Be known as cross beam truss in the jack truss intersected inside main couple, chord member one end by splice plate with
And high-strength bolt is connected with main couple, the other end is connected with concrete structured beam；Intersecting the jack truss outside main couple, one end
It is connected with main couple, the other end is pure overhanging, will pass to main couple by load thereon.
4. a kind of high-altitude overhanging main truss posture steel mould base construction platform according to claim 1, it is characterised in that：Described
Safeguard that rod piece (3) for H profile steel, is welded or rolled in edge；Safeguard that rod piece (3) is arranged on the ragged edge of entire truss in edge
Edge is connect with main couple (1) and jack truss (2) by splice plate (4) and high-strength bolt (5).
5. a kind of high-altitude overhanging main truss posture steel mould base construction platform according to claim 1, it is characterised in that：Described
Splice plate (4) and high-strength bolt (5) are the connecting elements of entire truss, and splice plate is rectangular steel plates, includes the spelling of upper lower flange
Fishplate bar and web splice plate, thickness are no less than the thickness of institute's connecting plate part；High-strength bolt material should be 45# steel or steel alloy, by force
Degree rank should be 10.9 grades or higher.
6. a kind of high-altitude overhanging main truss posture steel mould base construction platform according to claim 1, it is characterised in that：It is constructing
In after all member erections, the upper surface of top boom should be at same level height；And above completely spread I-steel or
Steel plate finds out a complete plane, the bottom surface as entire construction platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711346271.2A CN108222480B (en) | 2017-12-15 | 2017-12-15 | High-altitude cantilever main truss type steel formwork construction platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711346271.2A CN108222480B (en) | 2017-12-15 | 2017-12-15 | High-altitude cantilever main truss type steel formwork construction platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108222480A true CN108222480A (en) | 2018-06-29 |
| CN108222480B CN108222480B (en) | 2024-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711346271.2A Active CN108222480B (en) | 2017-12-15 | 2017-12-15 | High-altitude cantilever main truss type steel formwork construction platform |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049235A (en) * | 2020-08-26 | 2020-12-08 | 中国核电工程有限公司 | High-altitude large-span cantilever structure construction platform and method |
| CN113463966A (en) * | 2021-07-06 | 2021-10-01 | 中国电力工程顾问集团西北电力设计院有限公司 | Lattice tower type wire outlet structure |
| CN114541733A (en) * | 2022-02-28 | 2022-05-27 | 重庆建工集团股份有限公司 | Pre-assembled operating platform |
| CN115450314A (en) * | 2022-11-11 | 2022-12-09 | 中国建筑设计研究院有限公司 | Hollow cantilever structure |
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| JP2005009231A (en) * | 2003-06-20 | 2005-01-13 | Shimizu Corp | Method of constructing steel structure |
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| CN104989092A (en) * | 2015-05-28 | 2015-10-21 | 杭州江润科技有限公司 | Construction method of high-altitude overhang superposition type steel truss bearing platform |
| CN206053285U (en) * | 2016-08-23 | 2017-03-29 | 中建八局第三建设有限公司 | A kind of modular assembly of high-altitude overlength is encorbelmented steel platform |
| CN207633734U (en) * | 2017-12-15 | 2018-07-20 | 北京工业大学 | A kind of high-altitude overhanging main truss posture steel mould base operation platform |
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2017
- 2017-12-15 CN CN201711346271.2A patent/CN108222480B/en active Active
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| JP2005009231A (en) * | 2003-06-20 | 2005-01-13 | Shimizu Corp | Method of constructing steel structure |
| CN101205763A (en) * | 2007-07-31 | 2008-06-25 | 广厦建设集团有限责任公司 | Construction method for building formwork platform with bailey truss |
| CN201874233U (en) * | 2010-10-29 | 2011-06-22 | 中建三局建设工程股份有限公司 | Modular integral jacking steel platform formwork system with few support points at low position |
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| CN206053285U (en) * | 2016-08-23 | 2017-03-29 | 中建八局第三建设有限公司 | A kind of modular assembly of high-altitude overlength is encorbelmented steel platform |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049235A (en) * | 2020-08-26 | 2020-12-08 | 中国核电工程有限公司 | High-altitude large-span cantilever structure construction platform and method |
| CN113463966A (en) * | 2021-07-06 | 2021-10-01 | 中国电力工程顾问集团西北电力设计院有限公司 | Lattice tower type wire outlet structure |
| CN114541733A (en) * | 2022-02-28 | 2022-05-27 | 重庆建工集团股份有限公司 | Pre-assembled operating platform |
| CN115450314A (en) * | 2022-11-11 | 2022-12-09 | 中国建筑设计研究院有限公司 | Hollow cantilever structure |
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| Publication number | Publication date |
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| CN108222480B (en) | 2024-02-02 |
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