CN208918309U - A kind of combined support system suitable for business superelevation super-span Atrium Structure - Google Patents
A kind of combined support system suitable for business superelevation super-span Atrium Structure Download PDFInfo
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- CN208918309U CN208918309U CN201820824428.1U CN201820824428U CN208918309U CN 208918309 U CN208918309 U CN 208918309U CN 201820824428 U CN201820824428 U CN 201820824428U CN 208918309 U CN208918309 U CN 208918309U
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Abstract
The utility model discloses a kind of combined support systems suitable for business superelevation super-span Atrium Structure, including steel moulding bed supporter and bowl buckle frame branch die body, the bowl buckle frame branch die body is arranged in the steel moulding bed support platform at the top of the steel moulding bed supporter, solves business superelevation super-span Atrium Structure construction difficult problem.
Description
Technical field
The utility model relates to engineering structure technical field of construction, in particular to a kind of to be suitable for business superelevation super-span
The steel moulding bed for spending Atrium Structure construction adds bowl buckle support system.
Background technique
Since last century Mo, in order to allow Shopping Space it is more open, more flowing, more interact, also for pursuit
It is visual open, spiritual freely to feel and diversification functionally, " business Zhongting " this design are more and more common
Appear in business design in.The more of Zhongting, area are bigger in the design of modern large scale business body, design also more
Complexity, and the function of business Zhongting is also no longer limited to " natural lighting " already, therefore occurs in modern commerce body many non-
The Zhongting of logical high setting, when business atrium height span super large, the construction of such top closed structure of Zhongting is extremely difficult.
The business commercial affairs of [2013] 115 plot and recreational facilities one bid section project (hereinafter referred to as Hangzhou of room are stored up out with Hang Zheng
China Oil and Food Import and Export Corporation's exultation city project) for business Zhongting 1 and business Zhongting 2, top closed structure is located at 8 layers, area 2150m2, 8 layers
Board bottom is subsequent to do hard-cover furred ceiling, and 8 layers or less hollow, board bottom height 39.25m (low across)~40.75m (high across).8 layers of floor construction
System is big section concrete stiffness girder+concrete secondary beam+normal concrete floor construction, slab thickness 120mm, in
Front yard region amounts to 7 big section stiff beams, maximum beam section 1000mm*3000mm, span 30.2m.It is complete in the high-order bit 40.75m
It is set up at the support for shuttering of big section strengthening concrete beam, the binding of steel beam lifting, reinforcing bar and concreting belong to high-leveled and difficult height
Danger construction.
Before the project can construction technology for reference it is limited, arranged such as in conjunction with Hangzhou China Oil and Food Import and Export Corporation exultation city project situation
Under:
1. structural design optimization
Changed content:
Plan 8 floor panel structure systems of former design: big section concrete stiffness girder+concrete secondary beam+normal concrete
Floor construction is changed to pure main girder steel+steel secondary beam+steel bar truss floor structure, to reduce difficulty of construction.
Feasibility analysis:
(1) two layers to seven layers of business is concrete frame structure system, and eight floor of the building the 1# area A is more than that 3/4 area is changed to steel
Structural system belongs to overrunning high-rise building, and must transfinite examination, and earthquake protection grade need to become 7 degree from original 6 degree and set up defences.
(2) seismic behavior is increased to level-one by former second level, and amount of reinforcement at least increases by 30%, on the ground and the basement zone of influence
Domain structure column and beam section size about increase 30%.
(3) after stiff beam is changed to clean steel beam or girder system, girder steel sectional dimension will also be increased, and it is net to influence structure function
It is high.
(4) steel structure fireproofing requires high, can not reuse after meeting fire deformation, girder steel height is liftoff 40m, later period steel member face
Layer fire prevention, the maintenance difficulties of antirust are very big.5, the necessary time that must consider structural system modification and examination of transfiniting simultaneously, during which changes
Dynamic structural uncertainty, influences the whole duration.
2. the full hall support for shuttering arrangement and method for construction of tradition
Set up requirement:
(1) the corresponding full hall formwork rack position of Zhongting from floor to ceiling reinforce by 3 layers every layer of need of basement full hall frame, reinforces face
Product is 2500 ㎡；
(2) full hall support for shuttering is set up at Zhongting top plate (h=-0.050m) to 8 layers of stiff beam+beams of concrete bottom, is set up
2150 ㎡ of area, scaffolding height are 39.75m (height is across 41.25m)；
(3) full hall support for shuttering uses bowl buckle system, according to bowl buckle high-supported formwork code requirement and engineering practice, plate upright bar
Spacing 600mm (crossbeam lower part upright bar spacing 300mm), upright bar step pitch 1200mm.Bridging is arranged according to code requirement.
Feasibility analysis:
(1) full hall scaffold scaffolding height reaches 41.25m, and maximum stiffness deck-molding 3m is computed under super-section stiffness girder steel
Upright bar local buckling, calculating cannot pass through, and construction risk coefficient is big；
(2) reinforcing that returns back to top, total height 15.15m, 2500 ㎡ of monolayer area are both needed to for three layers of basement, material passes in and out basement
It is difficult；
(3) full hall bowl buckle support for shuttering is total need to put into 2400t bowl buckle+500t steel pipe, and it is big that material passes in and out field pressure；
(4) full hall scaffold project amount is too big, and it is too long to set up and remove the time, influences the whole duration；
(5) full hall frame construction infection range is big, and occupied space is big (especially basement part), is unfavorable for other professions and inserts
Enter construction.
3. Bailey bracket arrangement and method for construction
Set up requirement:
(1) consider that 321 type Bailey brackets are arranged as operation platform in floor at 7 layers of Zhongting position (h=33.75m), are used for
Scaffold and template are set up；
(2) a piece 18a hot rolling type I-steel is laterally set as distribution beam, the upper berth of distribution beam every 1m at the top of Bailey bracket
If steel springboard or plank formation operation platform.
Feasibility analysis:
(1) Bailey bracket maximum span reaches 35m, set up and construction work in danger coefficient it is big；
(2) after needing 7 floor board concrete intensity of business to reach 100% (28d), can start to set up Bailey bracket, installation needs
30d seriously affects construction speed；
After (3) 8 floor board concretes reach demoulding condition, because top floor is closed, complete empty below Bailey bracket, dismounting can not
Using existing vertical transport, Bailey bracket dismounting difficulty is big, and dismounting needs 30d, influences the whole duration.
4. prefabricated punching block entirety segmental hoisting
Technique requirement:
(1) former design Zhongting concrete stiffness girder is constant, and concrete secondary beam+normal concrete floor construction is changed to
Steel secondary beam+steel bar truss floor structure；
(2) concrete stiffness girder uses prefabricated steel-template, and punching block, girder steel and reinforcing bar are all installed on ground
At, according to lifting weight be segmented, integral hoisting is to 8 layers of corresponding position, then welds steel secondary beam, completely paving truss plate；
(3) stiff beam is segmented on ground according to hoisting, and beam is indulged muscle, stirrup in advance in every section of girder steel and is bound with girder steel
It is welded, outside is effectively welded using 1cm thick steel plate (combination back arris system) as permanent template integral assembling, and wherein girder steel is same
Outer steel mould side and bottom are all made of 20 reinforcing pull rods+double nut and are anchored.The good time girder steel bracket of main girder steel advance reservation, in the sky with
Secondary girder steel welding；
(4) after girder steel, reinforcing bar lifts in place together with punching block, muscle is indulged to disconnected section beam in the air and girder steel welds,
Punching block side fills weldering after using steel plate, according to stiffness beam span bottom steel mould according to 3/1000ths arch cambers in advance；
(5) prefabricated girder steel is reserved secondary beam bracket and is effectively connect with steel secondary beam, upper completely to spread truss floor plates, tests to whole
Fold lattice after-pouring 120mm thickness floor concrete.
Feasibility analysis:
(1) whole single-unit lifting weight is big, and aerial docking difficulty is big；
(2) girder steel, reinforcing bar, punching block are both needed to weld in the air, and welding capacity is big, and risk is high；
(3) aerial docking can not take emergency preplan, and danger coefficient is big；
(4) subsequent electromechanical, fire-fighting and hard-cover ceiling construction are available without operation platform.
It more than Comprehensive Correlation can refer to scheme, be not able to satisfy construction safety, progress and subsequent construction requirement.For existing
The deficiency of technology, in conjunction with practice of construction requirement, it is necessary to design a kind of suitable for business Zhongting superelevation super-span structure construction
Innovative gang form support system.
Utility model content
The utility model in order to solve the problems existing in the prior art, for business Zhongting superelevation super-span structure construction,
The utility model provide it is a kind of design it is reasonable, highly-safe, high-efficient and can take into account subsequent construction requirement novel compositions mould
Plate support system.
The technical issues of the utility model is solved can be realized using following technical scheme:
A kind of combined support system suitable for business superelevation super-span Atrium Structure, including steel moulding bed supporter with
Bowl buckle frame branch die body, which is characterized in that the bowl buckle frame branch die body is arranged in the steel moulding bed at the top of the steel moulding bed supporter
In support platform, solves business superelevation super-span Atrium Structure construction difficult problem.
In a preferred embodiment of the utility model, the steel moulding bed steel column of the steel moulding bed supporter is with basement
On the basis of top plate receives headpin, upper load is passed through into structural column and is transmitted to ground.
In a preferred embodiment of the utility model, the steel moulding bed supporter is using horizontal girder steel and periphery floor
Beam sides is shored, while being provided with steel construction diagonal brace and periphery floor carries out rigid connection support, in last steel moulding bed supporter
Portion sets up diagonal brace using fashioned iron, bears fractional load using existing structure and guarantees frame body stability.
In a preferred embodiment of the utility model, the steel moulding bed supporter is seperated with bowl buckle frame branch die body to be connected
It connects, avoids steel member after the completion of structure pours and be stressed directly, solve the problems, such as that subsequent demoulding is difficult.
In a preferred embodiment of the utility model, setting steel moulding bed is supported flat at the top of the steel moulding bed supporter
Platform arranges steel main beam and secondary beam along beam longitudinal and transverse direction in structural beams bottom corresponding position, does hard between fashioned iron primary-secondary beam
The bowl buckle frame branch die body is set up after protection.
In a preferred embodiment of the utility model, steel moulding bed supporter receives head from using in ground library top plate basement
Column is set up since positive negative zero floor, and scaffolding height reaches 35.75m, and steel operation platform is located at 35.75m at the top of moulding bed, is in 7
Up at 2 meters, girder steel is through in 8 floor plates of entire business floor plate.
Steel moulding bed member segments are processed, handling, and the installation of steel moulding bed supporter follows main structure construction Synchronous lifting.
After top bowl buckle frame branch die body is removed, steel moulding bed supporter can be electromechanical, fire-fighting installation subsequent at Zhongting closed plate
Operation platform is provided with fine fitment furred ceiling.
When steel moulding bed supporter is removed, fashioned iron is welded on original structure girder steel and completes slidably track purlin vehicle, on the vehicle of purlin
Bind electric block, by slide purlin vehicle cut to every section of steel moulding bed component at electric block after vertical transport to
Face.
Due to using technical solution as above, the utility model has the beneficial effects that:
Compared with prior art, the connection between the utility model and existing structure is even closer securely, can borrow existing
Structure Beam-column carries out the conduction of power, and the moulding bed system that girder steel, steel column, steel diagonal brace, existing structure collectively constitute can guarantee frame body
Set up with the overall stability during casting and compacting of concrete, more securely and reliably.After the completion of steel member segmental machining is marched into the arena, utilize
Live tower crane carries out handling installation, and the mounting height of steel moulding bed follows the promotion of main structure high level of synchronization, section construction, therefore material
Material supply, disengaging field, place occupies and component installation effectiveness can be accomplished maximumlly to meet construction requirement.Using steel moulding bed
Supporter and bowl buckle frame branch die body, also avoid steel member after the completion of structure pours and are stressed directly, and it is difficult to solve subsequent demoulding
The problem of.In addition to this, which separates supporter with branch die body, also provides for the subsequent other professional constructions of Zhongting
It is convenient, after the dismounting of bowl buckle support for shuttering, electromechanical, fire-fighting installation and fine fitment operation platform can be directly set up at the top of steel moulding bed.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural representation that a kind of steel moulding bed supporter of embodiment of the utility model is combined with bowl buckle frame branch die body
Figure.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is a kind of structural schematic diagram of the steel moulding bed supporter of embodiment of the utility model.
Fig. 4 is a kind of Atrium Structure sectional view of embodiment of the utility model application.
Fig. 5 is a kind of application state schematic diagram of embodiment of the utility model.
The flow chart of the step of Fig. 6 is the construction method of the utility model (1).
Specific embodiment
In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, under
The utility model is further described in face.
A kind of combined support system suitable for business superelevation super-span Atrium Structure referring to figs. 1 to 5,
Including steel moulding bed supporter 100 and bowl buckle frame branch die body 200, bowl buckle frame branch die body 200 is arranged and is pushed up in steel moulding bed supporter 100
In the steel moulding bed support platform 110 in portion.
Preferably, the steel moulding bed steel column 101 of steel moulding bed supporter 100, will be upper on the basis of basement roof receipts headpin
Portion's load passes through structural column and is transmitted to ground.Steel moulding bed supporter 100 is using horizontal girder steel 102 and periphery floor beam sides
It shores, while being provided with steel construction diagonal brace 103 and periphery floor carries out rigid connection support, in last steel moulding bed supporter 100
Portion sets up diagonal brace 104 using fashioned iron, bears fractional load using existing structure and guarantees frame body stability.
The connection seperated with bowl buckle frame branch die body 200 of steel moulding bed supporter 100, it is straight to avoid steel member after the completion of structure pours
Capacity solves the problems, such as that subsequent demoulding is difficult.Specifically, steel moulding bed support platform is set at the top of steel moulding bed supporter 100
110, steel main beam 111 and secondary beam 112 are arranged along beam longitudinal and transverse direction in structural beams bottom corresponding position, between fashioned iron primary-secondary beam
Bowl buckle frame branch die body 200 is set up after doing hard protection.
By the utility model be applied to 8 floor plate superelevation super-spans business Zhongting in, steel moulding bed supporter 100 from
Headpin is received using in ground library top plate basement, is set up since positive negative zero floor, scaffolding height reaches 35.75m, and steel is applied at the top of moulding bed
Work platform is located at 35.75m, at 7 floor plates up 2 meters.
After the group I of top bowl buckle frame branch die body 200 is removed, the group II of steel moulding bed supporter 100 can be at Zhongting closed plate
Subsequent electromechanical, fire-fighting installation and fine fitment furred ceiling provide operation platform.
Steel member segmental machining, handling, installation, dismounting, the installation of steel moulding bed supporter follow main structure construction to synchronize and mention
It rises.
When steel moulding bed supporter is removed, fashioned iron is welded on original structure girder steel and completes slidably track purlin vehicle, on the vehicle of purlin
Bind electric block, by slide purlin vehicle cut to every section of steel moulding bed component at electric block after vertical transport to
Face.
A kind of combined support system suitable for business superelevation super-span Atrium Structure of the utility model, including such as
Lower step:
(1) steel moulding bed is constructed
It constructs since basement roof, installation, segmentation installation after first pre-buried bar planting, after first filling and filling beam, first fill beam after column
Fill diagonal brace.Every layer of structural concrete pour before by girder steel, the pre-buried completion of brace embedded part, concreting completes intensity and reaches to want
It asks and scene provides beginning steel column installation after enough working faces, steel column is installed and this layer of template and frame body reach dismounting and require
After the completion of dismounting, start girder steel and diagonal brace installation.Integral installation process is as shown in Figure 6:
(2) bowl buckle frame is set up
After seven stratotype girder steel operation platforms are installed, after surveying setting-out, every stiff beam bottom along beam direction arrangement 5
Root 40# I-steel girder, stiff beam cross-wise direction use 18# I-steel (spacing 300mm) secondary beam.Secondary beam and secondary beam, secondary beam with
Tile 5mm thickness checkered steel plate hard protection between girder.Bowl fastening type support for shuttering support system and foot hand are set up on 18# I-steel
Frame.Upright bar spacing 300*300mm under beam, beam two sides upright bar spacing 600*600mm.
Before setting up bracket, the scaffold board of 70mm should be not less than in bottom of upright rod installation plate thickness.Horizon bar is set among frame body,
Upper end adds U-shaped support, adjusts reserved plate bed die height.Vertically and horizontally bridging should be set up while setting up full hall support frame.
(3) template is installed
Mounting rail template die after the completion of formwork-support is set up, using 15mm thickness wood plywood.
Plate bed die first installs 48 × 3.5mm of Φ double steel pipe main joist in U-shaped support, installs along main joist vertical direction
40*90 wood a tree, used in making timber for boats secondary joist is laid with wood plywood on secondary joist.
Beam bottom supports time back cord to use the 40*90 lumps of wood, is arranged perpendicular to beam section direction, in every, beam bottom portion upright bar U support
Two 48 × 3.5 steel pipes of Φ are set as the main back cord of support.Beam side girder is the 40*90 lumps of wood, and spacing 200mm, beam side girder adopts
With double steel pipe, arranged along beam span direction, spacing 300mm.Beam side is 16 high-strength bolt of Ф to pull rod, away from board bottom 200mm, away from beam
Bottom 200mm is arranged, spacing 300mm along beam span direction.
(4) contignation is constructed
Stiffness girder steel, truss floor plates, beams of concrete, concrete slab are installed according to drawing requirement, welds, have bound
At.
(5) concreting
8 layers of high and big die plate regional structure floor of each Zhongting and stiff beam use a subsynchronous integral construction, guarantee tall and big
Structure construction globality at template.Concreting level flow direction are as follows: take from the middle part of high-supported formwork region balance and symmetry to two
Side extension pours mode, it is ensured that balanced loaded in falsework work progress.
In view of construction safety, big section stiff beam concrete, which is taken, pours mode by several times, to stiff beam lower part concrete
Intensity reaches 70% and pours together together with secondary beam and truss floor plates floorslab concrete again.
(6) bowl buckle frame and form removable
Floor span 8.1m in this engineering high formwork support system boundary of works area, by technology after intensity reaches 100%
After personnel provide demoulding notice, demoulding and support frame.Falsework is removed, it then follows and first pacify and tears open afterwards, pacifies first tear open afterwards, first non-bearing
Position, rear load-bearing position and top-down principle.
(7) steel moulding bed is removed
After the units such as electromechanics, fire-fighting, fine fitment complete each professional construction operation using steel jig frame platform, steel moulding bed starts
It is formal to remove.Dismounting sequence are as follows: remove steel moulding bed checkered steel plate and 18# I-steel be isolated firmly, steel moulding bed secondary beam, steel moulding bed master
Beam, steel moulding bed steel column, are from top to bottom successively removed, and are removed steel moulding bed component and are placed in Zhongting first layer ground.It is every wait be fully completed
After layer removes work, component is transported to outside the venue using forklift.
Steel moulding bed method for dismounting: (Zhongting 2 uses 40# I-shaped to welding 28# I-steel on 8 layers of exposed girder steel in bottom of Zhongting
Steel), in 28# I-steel lower part, longitudinally elongated welding 28# I-steel completes slidably track purlin vehicle, binds electronic calabash on the vehicle of purlin
Reed.Vertical transport is to ground after being cut with electric block at every section of steel moulding bed component by sliding purlin vehicle.According to purlin vehicle
Forcing checking and electric block peak load, each cutting of steel moulding bed component total weight are not greater than 500kg.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (6)
1. a kind of combined support system suitable for business superelevation super-span Atrium Structure, including steel moulding bed supporter and bowl
Buckle frame branch die body, which is characterized in that the bowl buckle frame branch die body is arranged in the steel moulding bed branch at the top of the steel moulding bed supporter
It supports on platform.
2. a kind of combined support system suitable for business superelevation super-span Atrium Structure as described in claim 1,
It is characterized in that, the steel moulding bed steel column of the steel moulding bed supporter is suitable by upper load on the basis of basement roof receipts headpin
Benefit is transmitted to ground by structural column.
3. a kind of combined support system suitable for business superelevation super-span Atrium Structure as described in claim 1,
It is characterized in that, the steel moulding bed supporter is shored using horizontal girder steel with periphery floor beam sides, while it is oblique to be provided with steel construction
Support carries out rigid connection support with periphery floor, uses fashioned iron to set up diagonal brace inside last steel moulding bed supporter, utilizes existing knot
Structure bears fractional load and guarantees frame body stability.
4. a kind of combined support system suitable for business superelevation super-span Atrium Structure as described in claim 1,
It is characterized in that, the steel moulding bed supporter is seperated with bowl buckle frame branch die body to be connected.
5. a kind of combined support system suitable for business superelevation super-span Atrium Structure as described in claim 1,
It is characterized in that, steel moulding bed support platform is set at the top of the steel moulding bed supporter, in structural beams bottom corresponding position along beam longitudinal direction
And lateral arrangement steel main beam and secondary beam, the bowl buckle frame branch die body is set up after hard protection is done between fashioned iron primary-secondary beam.
6. a kind of combined support system suitable for business superelevation super-span Atrium Structure as described in claim 1,
It is characterized in that, steel moulding bed supporter receives headpin from using in ground library top plate basement, sets up since positive negative zero floor, sets up height
Degree reaches 35.75m, and steel operation platform is located at 35.75m at the top of moulding bed, and at 7 floor plates up 2 meters, girder steel is through in whole
A 8 floor plate of business.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109025281A (en) * | 2018-05-30 | 2018-12-18 | 中建三局第三建设工程有限责任公司 | A kind of construction system and method suitable for business superelevation super-span Atrium Structure |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109025281A (en) * | 2018-05-30 | 2018-12-18 | 中建三局第三建设工程有限责任公司 | A kind of construction system and method suitable for business superelevation super-span Atrium Structure |
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