CN109025281A - A kind of construction system and method suitable for business superelevation super-span Atrium Structure - Google Patents

A kind of construction system and method suitable for business superelevation super-span Atrium Structure Download PDF

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Publication number
CN109025281A
CN109025281A CN201810543019.9A CN201810543019A CN109025281A CN 109025281 A CN109025281 A CN 109025281A CN 201810543019 A CN201810543019 A CN 201810543019A CN 109025281 A CN109025281 A CN 109025281A
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China
Prior art keywords
steel
moulding bed
construction
business
girder
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CN201810543019.9A
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Chinese (zh)
Inventor
台登红
吴章熙
李航
王应征
续育飞
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Third Construction Co Ltd of China Construction Third Engineering Division
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Third Construction Co Ltd of China Construction Third Engineering Division
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Priority to CN201810543019.9A priority Critical patent/CN109025281A/en
Publication of CN109025281A publication Critical patent/CN109025281A/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/342Structures covering a large free area, whether open-sided or not, e.g. hangars, halls

Abstract

The invention discloses a kind of construction systems and method 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.The invention also discloses a kind of construction system and method suitable for business superelevation super-span Atrium Structure, include the following steps: that (1) steel moulding bed is constructed;(2) bowl buckle frame is set up;(3) template is installed;(4) contignation is constructed;(5) concreting.

Description

A kind of construction system and method suitable for business superelevation super-span Atrium Structure
Technical field
The present invention relates to engineering structure technical field of construction, in particular to one kind is suitable for business superelevation super-span The steel moulding bed of front yard 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.
Summary of the invention
The present invention in order to solve the problems existing in the prior art, for business Zhongting superelevation super-span structure construction, this hair It is bright provide it is a kind of design it is reasonable, highly-safe, high-efficient and can take into account subsequent construction requirement novel compositions shuttering supporting body System and its construction method.
Technical problem solved by the invention can be realized using following technical scheme:
A kind of construction system and method 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 tire at the top of the steel moulding bed supporter In frame support platform, solves business superelevation super-span Atrium Structure construction difficult problem.
In a preferred embodiment of the invention, the steel moulding bed steel column of the steel moulding bed supporter is with basement roof On the basis of receiving headpin, upper load is passed through into structural column and is transmitted to ground.
In a preferred embodiment of the invention, the steel moulding bed supporter is using horizontal girder steel and periphery floor beam side Face is shored, while being provided with steel construction diagonal brace and being carried out rigid connection support with periphery floor, is adopted inside last steel moulding bed supporter Diagonal brace is set up with fashioned iron, bear fractional load using existing structure and guarantees frame body stability.
In a preferred embodiment of the invention, steel moulding bed supporter connection seperated with bowl buckle frame branch die body, keeps away Steel member after the completion of structure pours is exempted to be stressed directly, has solved the problems, such as that subsequent demoulding is difficult.
In a preferred embodiment of the invention, steel moulding bed support platform is set at the top of the steel moulding bed supporter, Structural beams bottom corresponding position arranges steel main beam and secondary beam along beam longitudinal and transverse direction, after doing hard protection between fashioned iron primary-secondary beam Set up the bowl buckle frame branch die body.
In a preferred embodiment of the invention, steel moulding bed supporter receives headpin from using in ground library top plate basement, It is set up since positive negative zero floor, scaffolding height reaches 35.75m, and steel operation platform is located at 35.75m at the top of moulding bed, is in 7 layers Up at 2 meters, girder steel is through in 8 floor plates of entire business floor.
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.
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 construction system and method suitable for business superelevation super-span Atrium Structure, which is characterized in that including Following steps:
(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;
(2) bowl buckle frame is set up:
After multilayer girder steel operation platform is installed, after surveying setting-out, if being arranged every stiff beam bottom along beam direction Dry root I-steel girder, stiff beam cross-wise direction use I-steel secondary beam, and tile 5mm between secondary beam and secondary beam, secondary beam and girder Thick checkered steel plate hard protection, sets up bowl fastening type formwork system and scaffold on I-steel,
Before setting up bracket, the scaffold board of 70mm should be not less than in bottom of upright rod installation plate thickness, set horizon bar 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 is first in U-shaped support Main joist is installed, secondary joist is installed along main joist vertical direction, is laid with wood plywood on secondary joist,
Beam bottom supports time back cord to use the lumps of wood, is arranged perpendicular to beam section direction, if being arranged in every, beam bottom portion upright bar U support Dry steel pipe is as the main back cord of support.
(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:
Each Zhongting template area structure floor and stiff beam use a subsynchronous integral construction, guarantee to tie at high and big die plate Structure is constructed globality, concreting level flow direction are as follows: is taken from balance and symmetry in the middle part of high-supported formwork region and is extended to both sides Pour mode, it is ensured that it is 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.
In a preferred embodiment of the invention, in step (3), beam side girder is the 40*90 lumps of wood, spacing 200mm, beam Side girder uses double steel pipe, arranges along beam span direction, spacing 300mm.Beam side is 16 high-strength bolt of Ф to pull rod, away from board bottom 200mm is arranged, spacing 300mm away from beam bottom 200mm along beam span direction.
In a preferred embodiment of the invention, further include step (6) bowl buckle frame and form removable:
Floor span 8.1m in high formwork support system boundary of works area, is sent out after intensity reaches 100% by technical staff After putting demoulding notice, demoulding and support frame, falsework are removed, it then follows and first pacify and tears open afterwards, pacifies first tear open afterwards, first non-weight bearing area, Rear load-bearing position and top-down principle.
In a preferred embodiment of the invention, further include that step (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 I-steel be isolated firmly, steel moulding bed secondary beam, steel moulding bed girder, steel Moulding bed steel column, is from top to bottom successively removed, and is removed steel moulding bed component and is placed in Zhongting first layer ground.Wait be fully completed every layer of dismounting After work, component is transported to outside the venue using forklift.
Due to using technical solution as above, the beneficial effects of the present invention are:
Compared with prior art, the connection between the present invention 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 that frame body is 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, scene is utilized 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 supplies It answers, pass in and out field, place occupies and component installation effectiveness can be accomplished maximumlly to meet construction requirement.It is supported using steel moulding bed Body and bowl buckle frame branch die body, also avoid steel member after the completion of structure pours and are stressed directly, and solve asking for subsequent demoulding difficulty Topic.In addition to this, which separates supporter with branch die body, is also the subsequent other professional construction sides of providing of Zhongting Just, 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 more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram that the steel moulding bed supporter of an embodiment of the present invention is combined with bowl buckle frame branch die body.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is the structural schematic diagram of the steel moulding bed supporter of an embodiment of the present invention.
Fig. 4 is a kind of Atrium Structure sectional view for embodiment that the present invention applies.
Fig. 5 is the application state schematic diagram of an embodiment of the present invention.
The flow chart of the step of Fig. 6 is construction method of the invention (1).
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below into One step illustrates the present invention.
A kind of construction system and side suitable for business superelevation super-span Atrium Structure referring to figs. 1 to 5 Method, including steel moulding bed supporter 100 and bowl buckle frame branch die body 200, bowl buckle frame branch die body 200 is arranged in steel moulding bed supporter In the steel moulding bed support platform 110 at 100 tops.
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.
Apply the present invention in the business Zhongting of 8 floor plate superelevation super-spans, steel moulding bed supporter 100 is from utilization In ground library, top plate basement receives headpin, sets up since positive negative zero floor, and scaffolding height reaches 35.75m, and steel construction is flat at the top of moulding bed 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 construction system and method suitable for business superelevation super-span Atrium Structure of the invention, including it is as follows 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 above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its Equivalent thereof.

Claims (10)

1. a kind of construction system and method 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.
2. a kind of construction system and method 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 by basement roof receive headpin on the basis of, by upper load It passes through structural column and is transmitted to ground.
3. a kind of construction system and method 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 being provided with steel construction Diagonal brace and periphery floor carry out rigid connection support, use fashioned iron to set up diagonal brace inside last steel moulding bed supporter, utilization is existing Structure bears fractional load and guarantees frame body stability.
4. a kind of construction system and method suitable for business superelevation super-span Atrium Structure as described in claim 1, It is connected it is characterized in that, the steel moulding bed supporter is seperated with bowl buckle frame branch die body, avoids steel member after the completion of structure pours It is stressed directly, solves the problems, such as that subsequent demoulding is difficult.
5. a kind of construction system and method 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, it is vertical along beam in structural beams bottom corresponding position To and lateral arrangement steel main beam and secondary beam, set up the bowl buckle frame branch die body after hard protection is done between fashioned iron primary-secondary beam.
6. a kind of construction system and method 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, set up since positive negative zero floor Height reaches 35.75m, and steel operation platform is located at 35.75m at the top of moulding bed, is in 7 floor plates up at 2 meters, girder steel be through in 8 floor plates of entire business.
7. it is a kind of as described in claim 1 to 6 any claim be suitable for business superelevation super-span Atrium Structure Construction system and method, which comprises the steps of:
(1) steel moulding bed is constructed:
Construct since basement roof, installation, segmentation installation after first pre-buried bar planting, first fill fill beam after column, first fill beam after fill it is oblique Support, every layer of structural concrete pour before by girder steel, the pre-buried completion of brace embedded part, concreting complete intensity reach requirement and Scene starts steel column installation after providing enough working faces, and steel column is installed and this layer of template and frame body reach dismounting and require to remove After the completion, start girder steel and diagonal brace installation;
(2) bowl buckle frame is set up:
After multilayer girder steel operation platform is installed, after surveying setting-out, several are arranged along beam direction every stiff beam bottom I-steel girder, stiff beam cross-wise direction use I-steel secondary beam, the 5mm thickness that tiles between secondary beam and secondary beam, secondary beam and girder flower Line steel plate hard protection, sets up bowl fastening type formwork system and scaffold on I-steel,
Before setting up bracket, the scaffold board of 70mm should be not less than in bottom of upright rod installation plate thickness, set horizon bar, upper end among frame body Add 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 is first installed in U-shaped support Main joist installs secondary joist along main joist vertical direction, is laid with wood plywood on secondary joist,
Beam bottom supports time back cord to use the lumps of wood, is arranged perpendicular to beam section direction, and several steel are arranged in every, beam bottom portion upright bar U support Pipe is as the main back cord of support.
(4) contignation is constructed:
Stiffness girder steel, truss floor plates, beams of concrete, concrete slab are installed according to drawing requirement, welding, binding completion;
(5) concreting:
Each Zhongting template area structure floor and stiff beam use a subsynchronous integral construction, guarantee that structure is applied at high and big die plate Work globality, concreting level flow direction are as follows: take from the pouring to both sides extension of balance and symmetry in the middle part of high-supported formwork region Mode, it is ensured that it is 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 strength Reach 70% to pour together together with secondary beam and truss floor plates floorslab concrete again.
8. a kind of construction system and method suitable for business superelevation super-span Atrium Structure as claimed in claim 7, It is characterized in that, beam side girder is the 40*90 lumps of wood, and spacing 200mm, beam side girder uses double steel pipe, along girder span in step (3) Spend direction arrangement, spacing 300mm.Beam side is 16 high-strength bolt of Ф to pull rod, away from board bottom 200mm, away from beam bottom 200mm, along girder span Spend direction arrangement, spacing 300mm.
9. a kind of construction system and method suitable for business superelevation super-span Atrium Structure as claimed in claim 7, It is characterized in that, further including step (6) bowl buckle frame and form removable:
Floor span 8.1m in high formwork support system boundary of works area is provided by technical staff after intensity reaches 100% and is torn open After mould notice, demoulding and support frame, falsework remove, it then follows first pacify and tear open afterwards, pacify first tear open afterwards, first non-weight bearing area, after hold Weight position and top-down principle.
10. a kind of construction system and method suitable for business superelevation super-span Atrium Structure as claimed in claim 7, It is characterized in that, further including that step (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 formally Remove, dismounting sequence are as follows: remove steel moulding bed checkered steel plate and I-steel be isolated firmly, steel moulding bed secondary beam, steel moulding bed girder, steel moulding bed Steel column is from top to bottom successively removed, and is removed steel moulding bed component and is placed in Zhongting first layer ground.Wait be fully completed every layer of dismounting work Afterwards, component is transported to outside the venue using forklift.
CN201810543019.9A 2018-05-30 2018-05-30 A kind of construction system and method suitable for business superelevation super-span Atrium Structure Pending CN109025281A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110685459A (en) * 2019-10-21 2020-01-14 中国水利水电第三工程局有限公司 Breaking hammer dismantling construction method for dismantling hoist bent from lower part

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110685459A (en) * 2019-10-21 2020-01-14 中国水利水电第三工程局有限公司 Breaking hammer dismantling construction method for dismantling hoist bent from lower part
CN110685459B (en) * 2019-10-21 2021-03-05 中国水利水电第三工程局有限公司 Breaking hammer dismantling construction method for dismantling hoist bent from lower part

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