CN106760110A - Based on BIM profiled sheet armored concrete hollow sandwich floor construction engineering methods - Google Patents
Based on BIM profiled sheet armored concrete hollow sandwich floor construction engineering methods Download PDFInfo
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- CN106760110A CN106760110A CN201611265113.XA CN201611265113A CN106760110A CN 106760110 A CN106760110 A CN 106760110A CN 201611265113 A CN201611265113 A CN 201611265113A CN 106760110 A CN106760110 A CN 106760110A
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- concrete
- girt strip
- bim
- superstructure
- profiled sheet
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
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- 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
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/40—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings for coffered or ribbed ceilings
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- 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
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/48—Supporting structures for shutterings or frames for floors or roofs
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B2005/324—Floor structures wholly cast in situ with or without form units or reinforcements with peripheral anchors or supports
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
BIM profiled sheet armored concrete hollow sandwich floor construction engineering methods are based on the invention discloses one kind, are comprised the following steps that:Threedimensional model is built using BIM, the data according to derived from BIM carry out preprocessing to profiled sheet, high-strength bolt and steel plate connecting elements;Superstructure support system is built, the support column of superstructure is built with reinforcing bar, then support column is wrapped with profiled sheet;Lower girt strip and shear connector are installed, lower girt strip concrete and shear connector concrete is poured;Install girt strip and building cover board, colligation building cover board reinforcing bar;Pour girt strip concrete and superstructure board concrete.It is that many work post multi-level junction operations create condition because profiled sheet is directly supported on the frame column on periphery as the template of casting concrete, and for many work post operations provide working face, greatly accelerates construction speed, shortens the duration.By taking Xin Pu squares as an example, the duration shortens than the original plan duration, and this has clear meaning to larger tier building.
Description
Technical field
The invention belongs to construction engineering method technical field, and in particular to one kind is based on BIM profiled sheets-armored concrete
Hollow sandwich floor construction engineering method.
Background technology
With continuing to develop for economic society, people are increasingly lifted to the demand of the large span interior space.All kinds of styles
The building plans such as shop, market hotel, factory building theater increasingly increase, brisk in the market.The construction of shaped steel-reinforced concrete composite structure
Increasingly pay attention to, new architectural composition is for construction process requirement more and more higher, and prefabricated profiled sheet-reinforced concrete combination is empty
Abdomen superstructure is a kind of new large span(18m-42m)Floor structural form, it has saves amount of reinforcement, reduction engineering cost,
Save the duration, save template, anti-seismic performance it is good, from finishing, save floor height the advantages of.In recent years, grinding due to new technology
Hair and introduction, the research and application of profiled sheet-reinforced concrete combination superstructure just develop by leaps and bounds.Especially BIM skills
The popularization and application of art, are that there is construction industry the important technical across significance of times to reform, and are the hair of hollow sandwich floor construction engineering method
Bright and improvement, there is provided advanced technical support.
In the prior art, presed-steel plate is first processed according to result of calculation, needs to carry out preassembling after processing, and looks at
Suitable improper, if improper needs are done over again, computational accuracy is low, waste of manpower and material resources.
The content of the invention
The technical problem to be solved in the present invention is that in the prior art, presed-steel plate is first processed according to result of calculation, plus
Need to carry out preassembling after work is good, look at suitable improper, if improper needs are done over again, computational accuracy is low, waste of manpower and
Material resources, to solve the above problems, the present invention provides a kind of based on BIM profiled sheets-armored concrete hollow sandwich floor construction
Engineering method.
The purpose of the present invention is realized in the following manner:
Based on BIM profiled sheets-armored concrete hollow sandwich floor construction engineering method, comprise the following steps that:
(1)Threedimensional model is built using BIM according to superstructure original design drawing, superstructure original design drawing is entered using BIM modeling techniques
Row is deepened, is supplemented and perfect, and making can be with the construction drawing of site operation;
(2)The integrated different pieces of information and parameter formed to each component of superstructure using BIM technology are derived from model, are used
Positioned in factory process raw material and site operation;
(3)According to step(2)Derived data, preprocessing is carried out to profiled sheet, high-strength bolt and steel plate connecting elements, and will
The material for processing is transported to job site;
(4)According to step(2)The data of derived superstructure support system, build superstructure support system;
(5)The support column of superstructure is built with reinforcing bar, then support column is wrapped with profiled sheet;
(6)The base plate of lower girt strip, the reinforcing bar of the reinforcing bar of girt strip and shear connector under colligation are installed, then the side plate of lower girt strip is installed, under
Connected using high-strength bolt and junction steel plate between girt strip grid node;
(7)Lower girt strip concrete and shear connector concrete are poured, profiled sheet-reinforced concrete combination grid component is formed, its
Medium-pressure type steel plate does template in the construction stage, and primary structure member is done in operational phase;
(8)After after lower girt strip concrete initial set, the base plate of girt strip is installed, the reinforcing bar of girt strip in colligation, then install girt strip
Side plate, is connected between upper girt strip grid node using high-strength bolt and junction steel plate;
(9)Building cover board, colligation building cover board reinforcing bar are installed;
(10)Girt strip concrete and superstructure board concrete are poured, the Open-web Floor Frame of ground floor three dimensions stress is formed;
(11)After after upper rib concrete initial set, repeat step(5)-(10), build second, third ... n-th layer hollow floor system
Structure;
(12)Dismounting superstructure support system.
The step(7)In lower girt strip concrete and shear connector concrete pour use " catching up with slurry processes ", first by lower girt strip
According to deck-molding placement layer by layer into stairstepping, when lower girt strip bottom position is reached, as stairstepping constantly extends, lower girt strip concrete
Pour and continuously push ahead.
The step(10)In upper girt strip concrete and superstructure board concrete to pour simultaneously, casting method is using " catching up with slurry
Method ", i.e., first pour girt strip, is poured according to upper girt strip high stratification, into stairstepping, when upper girt strip top board bottom position is reached, then
Poured together with the concrete of building cover board, as stairstepping constantly extends, beam slab concreting is continuously carried forward.
The virtual resurfacing thickness of superstructure board concrete is more than thickness of slab, is vibrated repeatedly with the vertical casting direction of vibration board, upper rib
Beam is drawn along casting direction support using poker vibrator and vibrated, and real-time inspection building cover board concrete thickness, is vibrated and used after finishing
Wooden float is floating;At construction joint or have levelling with wooden float at built-in fitting and joint bar;Do not allow to use when pouring superstructure board concrete
Vibrating spear spreads out and puts on concrete.
The superstructure support system includes main support, operating platform, secondary support and four parts of 1.5m adjusting meanss, main
Support is set according to host node spacing dimension, and pair support is made up of the steel pipes of Φ 48 × 3.5, is not to be subject to main support to support
Shear connector provide support, before off-load, pair support will first be removed, 1.5m adjusting meanss be located at it is main support and profiled sheet it
Between, for unloading.
Waffle beam is additionally provided between the upper girt strip, waffle beam is located on sustained height with upper girt strip and constitutes upper grid beams,
And waffle beam is located at the hollow top position of macroreticular lower grid beams that lower girt strip surrounded.
From the point of view of engineering practice effect analysis, the present invention is in quality, cost, duration, energy-conservation, environmental protection, labour protection
Etc. aspect all achieve good economic benefit and social benefit.The present invention combines the advantage of various floor constructions, is to compare
Economic method of construction of building roof.The present invention can meet different regions multilayer large-span(18m-42m)Public building and industrial building
The construction of new plated spatial structures engineering, " Ecological Civilization Construction " matches with " energy-conservation saves land " project, with preferably hair
Exhibition prospect, construction quality, secure, the construction advanced technology of safety, is worth similar structures project to be promoted the use of.Relative to existing
There is technology, beneficial effects of the present invention are as follows:
1st, because profiled sheet is used as the template of rib under placing concrete, substantial amounts of plank sheathing and its support are saved, is saved
Fund.
2nd, profiled sheet, because of itself and reinforcing bar, the compound action of concrete, can also replace tension reinforcement in operational phase, use
Steel amount only has 70kg/m2, and the conventional 120kg/ m of similar engineering other structures2Compare, saving steel 42kg/ m2, therefore subtract
Lack the making and installment work of reinforcing bar, save fund.
3rd, profiled sheet-reinforced concrete combination hollow floor system, span is big, with larger rigidity, profiled sheet combination
Compared with Reinforced Concrete Beamsin Frame Construction, the sectional dimension of beam reduces beam, makes the weight reduction of composite floor.Both concrete use had been reduced
Amount, alleviates the dead load of structure again, highly beneficial to structure, and especially tier building more has important meaning with seismic areas building
Justice.
4th, it is easy to lay the pipelines such as communication, electric power, heating and air-conditioning in hollow floor system.And can lay sound insulation, insulation,
The material such as shock insulation, heat-insulated, improves the service behaviour of flooring.
5th, because profiled sheet is directly supported on the frame column on periphery as the template of casting concrete, and it is multiplexing
Plant operation and provide working face, be that many work post multi-level junction operations create condition, greatly accelerate construction speed, shorten
Duration.By taking Xin Pu squares as an example, the duration shortens than the original plan duration, and this has substantially meaning to larger tier building
Justice.
6th, by application BIM technology, the rework rate of floor construction medium-pressure type steel plate processing is reduced, size is accurate, full hall
Frame is set up and is simulated construction using BIM technology with subsequent construction, reduces preassembling expense of labour use, and the duration saved.
By BIM model displays, preferably complete with Party A, management, the communication work of quality inspection safety check authorities, plus
Fast efficiency of construction, improves corporate image, with preferable social benefit.
Die mould steel is both template and tendon, is killed two birds with one stone;Steel using amount is small, and this engineering superstructure converting thickness is
25.4cm/ m2, steel using amount only has 78 kg/m2;And conventional rebar concrete frame steel using amount is in 120kg/m2More than;The rigidity of structure compared with
Greatly, it is capable of achieving smaller rise-span ratio, it is adaptable to which large span is without column space requirement;Save construction project investment, there is provided bigger using empty
Between;Superstructure construction cost is low, and comfort level meets requirement;Air-conditioning, service line, without furred ceiling again can be set up on an empty stomach.
Brief description of the drawings
Fig. 1 is the profile of hollow sandwich building cover structure of the present invention.
Fig. 2 is the structural representation of hollow sandwich superstructure of the present invention.
Specific embodiment
As shown in Figure 1, the profiled sheet based on BIM-armored concrete hollow sandwich floor construction engineering method, specific steps
It is as follows:
(1)Threedimensional model is built using BIM according to superstructure original design drawing, superstructure original design drawing is entered using BIM modeling techniques
Row is deepened, is supplemented and perfect, and making can be with the construction drawing of site operation;
(2)The integrated different pieces of information and parameter formed to each component of superstructure using BIM technology are derived from model, are used
Positioned in factory process raw material and site operation;
(3)According to step(2)Derived data, preprocessing is carried out to profiled sheet 5, high-strength bolt and steel plate connecting elements, and
The material that will be processed is transported to job site;
(4)According to step(2)The data of derived superstructure support system, build superstructure support system;
(5)The support column of superstructure is built with reinforcing bar, then support column profiled sheet 5 is wrapped;
(6)The base plate of lower girt strip 3, the reinforcing bar of the reinforcing bar of girt strip 3 and shear connector 2 under colligation are installed, then the side of lower girt strip 3 is installed
Plate, is connected between the lower grid node of girt strip 3 using high-strength bolt and junction steel plate;
(7)The concrete of lower girt strip 3 and the concrete of shear connector 2 are poured, profiled sheet-reinforced concrete combination grid component is formed,
Wherein profiled sheet does template in the construction stage, and primary structure member is done in operational phase;
(8)After after the concrete initial set of lower girt strip 3, the base plate of girt strip 1 is installed, the reinforcing bar of girt strip 1 in colligation, then install girt strip
1 side plate, is connected between the grid node of upper girt strip 1 using high-strength bolt and junction steel plate;
(9)Building cover board 4, the reinforcing bar of colligation building cover board 4 are installed;
(10)The concrete of girt strip 1 and superstructure board concrete are poured, the Open-web Floor Frame of ground floor three dimensions stress is formed;
(11)After after the concrete initial set of upper girt strip 1, repeat step(5)-(10), build second, third ... n-th layer empty stomach building
Lid structure;
(12)Dismounting superstructure support system.
Step(7)In the lower concrete of girt strip 3 and the concrete of shear connector 2 pour use " catching up with slurry processes ", first by lower girt strip 3
According to deck-molding placement layer by layer into stairstepping, when 3 bottom position of lower girt strip is reached, as stairstepping constantly extends, the lower concrete of girt strip 3
Pour and continuously push ahead.
Step(10)In the upper concrete of girt strip 1 and the concrete of building cover board 4 to pour simultaneously, casting method is using " catching up with slurry
Method ", i.e., first pour girt strip, is poured according to the high stratification of upper girt strip 1, into stairstepping, when 1 top board bottom position of upper girt strip is reached,
Poured together with the concrete of building cover board 4 again, as stairstepping constantly extends, beam slab concreting is continuously carried forward.
The virtual resurfacing thickness of the concrete of building cover board 4 is more than thickness of slab, is vibrated repeatedly with the vertical casting direction of vibration board, upper rib
Beam 1 is drawn along casting direction support using poker vibrator and vibrated, and real-time inspection building cover board concrete thickness, is vibrated and used after finishing
Wooden float is floating;At construction joint or have levelling with wooden float at built-in fitting and joint bar;Do not allow to use when pouring superstructure board concrete
Vibrating spear spreads out and puts on concrete.
Superstructure support system includes main support, operating platform, secondary support and four parts of 1.5m adjusting meanss, main support
Set according to host node spacing dimension, pair support is made up of the steel pipes of Φ 48 × 3.5, be not sheared by main support support
Key provides support, and before off-load, pair support will be first removed, and 1.5m adjusting meanss are located between main support and profiled sheet, are used
In unloading.
Waffle beam is additionally provided between upper girt strip 1, waffle beam is located on sustained height with upper girt strip 1 and constitutes upper grid beams, and
And waffle beam is located at the hollow top position of macroreticular lower grid beams that lower girt strip 3 surrounded.
Concrete construction method is as follows:
First, superstructure optimization design and construction simulation are carried out using BIM technology
Construction project to be built is modeled first, model fineness will meet the requirement for instructing prefabricated profiled sheet and guiding construction.It is logical
Crossing threedimensional model carries out drawing review, optimizes Design of Floors, on the premise of structure safety is met, to obtain optimal outward appearance
Be easy to constructing operation.Accurate calculation amount is carried out to compound superstructure with BIM technology, and guides processing factory to split by BIM models
Good profiled sheet module carries out prefabricated, alternative factory's preassembling link, saves duration and cost.
2nd, full hall scaffold is set up, i.e. superstructure support system is built
Mold Base Design and checking computations are carried out first with BIM three-dimensional die carrier technologies, with BIM models, carrying out three-dimensional to scaffolder can
Told somebody what one's real intentions are depending on change, full hall frame material is bought according to the bill of materials be given in three-dimensional mould bases software.
Execution conditions:When wind-force is more than or equal to six grades, the extreme weather such as rain, snow, dense fog stops construction operation.Temperature is 35
More than and at subzero less than 5 degrees centigrade, should have heatstroke prevention or freeze prevention measure, and construct with caution.
The full hall in interior erects the vertical square of bar and transfer all presses 0.8m, main support 4.0m × 4.0m(Needed to adjust according to node size
It is whole), step square 1.5m sets up, and scaffolding height subtracts thickness of slab for floor height, each step of the vertical rod integral full hall frame of drawknot in length and breadth.
Full hall erects bar and completely sets bar of vertically and horizontally sweeping the floor, and rod end completely sets horizon bar in length and breadth and horizontal cross brace.
Hard Nogata to:Continuous bridging together is set every 4 row's vertical rods along Y-direction, is set together every 2 row's vertical rods in X direction
Continuous bridging.
Horizontal direction:Gross area sets up one horizontal cross brace every 2 steps from rod end.
3rd, lower girt strip profiled sheet is installed
According to design drawing and BIM models, girt strip template is substituted using profiled sheet under hollow sandwich panel ceiling for storied building, and profiled sheet was both
It is that bed die is again tensional element.Qualified producer is entrusted in the making of steel plate, according to BIM modellings, it is prefabricated after the completion of, transport
Stacked to the standard compliant specified location in job site, and with there is appropriate rust preventing.
Execution conditions:When wind-force is more than or equal to six grades, the extreme weather such as rain, snow, dense fog stops construction operation.Temperature is 35
More than and at subzero less than 5 degrees centigrade, should have heatstroke prevention or freeze prevention measure, and construct with caution.
Profiled sheet high-strength bolt assembly and connection, specific installation method is as follows:
1. before profiled sheet lifting, its size, block number, template and place position need to be checked by design working drawing and BIM models, really
Recognize dispensing it is errorless after, according to numbering installed with agent structure erection sequence and progress respectively.Profiled sheet is hanging process
In action should never be hung rough with slow rate discharge.
2. the profiled sheet without external packing, should use suspender and protector during handling, forbid directly to be bundled using steel wire rope
Hang.Lifting process is strictly carried out in accordance with lifting allocation and transportation " ten are forbidden ", should have special tower crane commanding to command.
3. before profiled sheet being installed, the position line of lay should be marked on scaffold cross bar.When laying profiled sheet, Ying Gen
Installed according to design drawing and BIM models in order of numbers.Lifting is completed and position is by after precision adjustment, solid with high-strength bolt
Determine connecting node.
4. the lifting construction of profiled sheet is forbidden as wind speed >=6m/s, in order to avoid cause security incident or damage steel plate.
4th, lower girt strip and shear connector reinforcing bar colligation
5th, lower girt strip and shear connector concrete are poured
Execution conditions:During concreting, construction environment temperature is preferably maintained between 5 DEG C -35 DEG C, and winter construction should have《Teletostage
Concrete engineering construction special scheme》, summer time construction should have cooling measure, carry on construction work at night as far as possible.Before concrete pouring construction, steel
The acceptances of concealed work such as muscle should be completed, and note retaining cured under same condition and standard maintaining test block when pouring.
When pouring lower girt strip and shear connector concrete, casting method uses " catching up with slurry processes ", according to deck-molding and shearing when pouring
Key high stratification is poured.Into stairstepping, when lower girt strip bottom level position is reached, as stairstepping constantly extends, lower girt strip and
Shear connector concreting is continuously carried forward.
6th, upper girt strip profiled sheet and building cover board are installed
The same step 3 of installation method.
7th, upper girt strip and building cover board reinforcing bar colligation
8th, upper girt strip, building cover board concreting
Execution conditions:During concreting, construction environment temperature is preferably maintained between 5 DEG C -35 DEG C, and winter construction should have《Teletostage
Concrete engineering construction special scheme》, summer time construction should have cooling measure, carry on construction work at night as far as possible.Before concrete pouring construction, steel
The acceptances of concealed work such as muscle should be completed, and note retaining cured under same condition and standard maintaining test block when pouring.
1. going up girt strip, plate will pour simultaneously, and casting method uses " catching up with slurry processes ", i.e., first pour girt strip, be layered according to deck-molding
Pour.Into stairstepping, when back plate bottom position is reached, then poured together with the concrete of plate, as stairstepping constantly extends,
Beam slab concreting is continuously carried forward.
2. the virtual resurfacing thickness for pouring board concrete should be greater than thickness of slab, and occurrence is depending on thickness of slab.It is vertical with vibration board
Casting direction is vibrated repeatedly, and girt strip is drawn along casting direction support using poker vibrator and vibrated, and uses real-time inspection board concrete
Thickness, vibrates floating with wooden float after finishing.At construction joint or have levelling with wooden float at built-in fitting and joint bar.Pour plate coagulation
Do not allow to spread out and put on concrete with vibrating spear when native.
3. construction joint position:Build floor preferably is poured along secondary beam direction, construction joint is retained in the scope of centre 1/3 of time beam span
It is interior.The surface of construction joint is vertical with beam axis or plate face, must not stay oblique raft.Construction joint preferably uses flitch or steel mesh gear jail.
4. must just be allowed to continue to pour when the compression strength of casting concrete is not less than 1.2MPa at construction joint.
Before continuing casting concrete, construction joint concrete surface must dabbing, reject floating stone, and after being rinsed well with water, first paving is poured
One layer of cement mortar, then proceedes to casting concrete, should take responsible measures, new-old concrete is combined closely.
Combined hollow interlayer superstructure points for attention and quality requirement:
When full hall frame is set up, should be according to construction drawing and BIM information model blow-down bit lines, it is ensured that have a branch under each shear connector
Support, particularly when first floor lid is constructed, should take responsible measures, sedimentation of the control support body under construction loads effect.
Girt strip concrete reaches 100% design strength rear collapsible die on this layer, and upper strata superstructure should be checked during form removable certainly
Whether weight and its construction loads exceed this layer of working load, and support support should be added by calculating otherwise under this layer, should ensure that
Open-spandrel sandwich board span centre is no less than a strong point(Shear connector nearby is supported in the middle of post net).
1/500 arch camber of span is pressed in the requirement of combined hollow sandwich plate.
Drainage grade slope by structure needed for combined hollow sandwich plate roofing, the gradient presses construction drainage slope requirement.
Forbid opening holes on combined hollow sandwich plate up/down rib and shear connector, such as relevant speciality need to really open up equipment opening
Should notify that designer makees especially treatment during hole, before construction.
Material therefor:
1. profiled sheet uses Q345-B, F(GB-700-88)Steel make, and thickness and size follow design objective.In connection
The side junction steel plate of lower rib is used and bottom profiled sheet identical material steel making, steel plate thickness and weld size foundation
Design requirement.Base plate is connected using high-strength bolt at profiled sheet node, and medial surface is welded to connect using steel plate at node.In advance
Profiled sheet processed makes in the regular producer for possessing qualification, through Quality Inspector's self-inspection, and through supervising engineer after the assay was approved, can
Transport to job site installation.
2. reinforcing bar:Using HRB400 grades of reinforcing bar, fy=360/mm2, must be qualified through Quality Inspector's self-inspection during the entering of reinforcing steel bar, then pass through
Supervising engineer's witness sampling, after transferring to the experiment detection unit detection for possessing corresponding qualification qualified, can be used for engineering.
3. profiled sheet bottom surface is connected using high-strength bolt, and high-strength bolt uses 10.9 grades, and bolt arrangement uses fixation side
Formula.High-strength bolt uses unified specification M14, and bolt is long and wherein screw thread is long follows design requirement.Profiled sheet bottom surface is anchored at
Peg in concrete uses Q345 steel, and a diameter of Φ 10,8.8 grades of peg grade is welded when all pegs are prefabricated in the factory
Complete, it is to avoid on-the-spot welding.Peg is the heavy connection commonly used in the solidifying combination beam of steel, its effect be just resistant to concrete with
The straight skidding that shaped steel face produces under load action ensures shaped steel with concrete as a common stress of composite entity.
4. welding material
1. welding rod:Selected by design requirement, it is necessary to have the certification of fitness and product description.E50××(GB5118)Welding rod is used
In HRB335 grades of steel, a diameter of φ 3.2mm;E55 ××s (GB5118) welding rod is used for HRB400 grades of steel.Profiled sheet and
Upper and lower rib connecting plate uses steel Q345, welding rod mutually to should determine that.
2. carbon dioxide welding wire:The a diameter of φ 1.2mm of H08H08A H08E;CO2Gas:Purity index >=99.98%.
5. concrete material requested
1. cement:Portland cement or Portland cement intensity are not less than 42.5Mpa.The kind of cement, label, producer
And the trade mark should meet the requirement of concrete mix advice note.Cement should have the appearance quality certification and test report of marching into the arena.
2. sand:Middle sand, clay content is less than 2%, should meet national current standard《Regular concrete sand quality standard and inspection
Proved recipe method》.
3. rubble:The particle diameter of stone, level are matched somebody with somebody and the place of production should meet the requirement of concrete mix advice note, and stone contains mud
Within 1%, the flat-elongated particles content of stone should be controlled within 15% for amount control.
Application example:
1. JinRong Building construction project in Hebi is eastern with towards taste and style of the song intersection positioned at Henan Province Hebi City Qibin District south Qi Shui main roads
Beijiao, is an important large public building project, occupies the big construction project of comprehensive service function area of Hebi City city the Qihe River ten
First of, as Hebi City landmark, it is known as the first high building of Henan north.27 mu of occupation of land, mansion 38 floor high, 168 meters, by a master
Building and two annexs composition, overall floorage up to 10.6 ten thousand square metres, in formal completion in 2013.Mansion building shape-designing with
Qi-river crucian is Inspiration Sources, therefore also referred to as Qi Ji mansions, and main application is finance commercial affairs, office, is a comprehensive, public good
The Social Culture facility of property.The project application《Prefabricated profiled sheet based on BIM technology-armored concrete high-strength bolt connects
Connect composite open-web plate construction》Achievement, obtain the consistent favorable comment of each side.
2. new Pu Plaza Project is located at Zhengzhou City workman road and Huaihe Road, and 50,000 squares of construction area is a modernization
Building, main building uses framework core wall structure, and engineering integrated engineering inspection of quality reaches quality supervised department excellent project standard.
The excellent social each visiting person of construction quality effect order gives to highly praise.This engineering is with its excellent quality characteristics, abundant
Advanced technology application content, has attracted industry colleague's to view and emulate reference, has fully demonstrated building technology development and has been with large project
The exemplary role of support, with good social benefit.The project application《Prefabricated profiled sheet-reinforcing bar based on BIM technology
Concrete combined hollow method of construction of building roof》Achievement, obtain the consistent favorable comment of each side.
Prefabricated profiled sheet based on BIM technology-reinforced concrete combination hollow sandwich building cover structure construction, be
On the basis of armored concrete hollow sandwich superstructure, the one kind gone out with reference to the Summary on technology such as BIM technology application, prefabricated assembled is new
Type space building cover structure construction method, the profiled sheet of rib grid type intersection is connected by high-strength bolt under superstructure, in steel
Pin is broken in plate inner side, to pour and form shaped steel-concrete combined component after pouring down rib concrete.The lower rib composite grid of tension and compression
Upper rib waffle slab pass through the sky that shear connector forms identical with Rc Open-web Sandwich Plates structural form three dimensions stress
Abdomen building cover structure.
During the floor construction, a profiled sheet assembling is poured twice using BIM modelings, prefabricated Steel section member formerly
The construction process built.Wherein profiled sheet does template in the construction stage, and primary structure member is done in operational phase.
The structure type of combined hollow interlayer superstructure is relative to traditional bar concrete building roof structure and Common combinations knot
Structure superstructure is very different, and it is lifted to three-D space structure system by simple plane contignation, its rigidity and entirety
Property is superior to general traditional beam and slab type structure.The preferable profiled sheet of examining tensile behavior is made by the vertical muscle of high-strength bolt connection and bottom
It is rib under hollow floor system, undertakes tension;The preferable concrete of Compressive Performance undertakes compression as rib on hollow floor system, receives
Power form is more reasonable, is worthy to be popularized in the industry of all kinds of large spans with civil buildings.
Above-described is only the preferred embodiment of the present invention, it is noted that for a person skilled in the art,
Under the premise of general idea of the present invention is not departed from, some changes and improvements can also be made, these should also be considered as of the invention
Protection domain.
Claims (6)
1. BIM profiled sheets-armored concrete hollow sandwich floor construction engineering method is based on, it is characterised in that:Comprise the following steps that:
(1)Threedimensional model is built using BIM according to superstructure original design drawing, superstructure original design drawing is entered using BIM modeling techniques
Row is deepened, is supplemented and perfect, and making can be with the construction drawing of site operation;
(2)The integrated different pieces of information and parameter formed to each component of superstructure using BIM technology are derived from model, are used
Positioned in factory process raw material and site operation;
(3)According to step(2)Derived data, preprocessing is carried out to profiled sheet, high-strength bolt and steel plate connecting elements, and will
The material for processing is transported to job site;
(4)According to step(2)The data of derived superstructure support system, build superstructure support system;
(5)Build the support column of superstructure with reinforcing bar, then by support column profiled sheet(5)Wrap;
(6)Lower girt strip is installed(3)Base plate, girt strip under colligation(3)Reinforcing bar and shear connector(2)Reinforcing bar, then lower girt strip is installed
(3)Side plate, lower girt strip(3)Connected using high-strength bolt and junction steel plate between grid node;
(7)Pour lower girt strip(3)Concrete and shear connector(2)Concrete, forms profiled sheet-reinforced concrete combination grid structure
Part, wherein profiled sheet do template in the construction stage, and primary structure member is done in operational phase;
(8)Treat lower girt strip(3)After concrete initial set, girt strip is installed(1)Base plate, girt strip in colligation(1)Reinforcing bar, then install
Upper girt strip(1)Side plate, upper girt strip(1)Connected using high-strength bolt and junction steel plate between grid node;
(9)Building cover board is installed(4), colligation building cover board(4)Reinforcing bar;
(10)Pour girt strip(1)Concrete and superstructure board concrete, form the hollow floor system knot of ground floor three dimensions stress
Structure;
(11)After after upper rib concrete initial set, repeat step(5)-(10), build second, third ... n-th layer hollow floor system
Structure;
(12)Dismounting superstructure support system.
2. according to claim 1 based on BIM profiled sheets-armored concrete hollow sandwich floor construction engineering method, it is special
Levy and be:The step(7)In lower girt strip(3)Concrete and shear connector concrete pour use " catching up with slurry processes ", first by lower rib
Beam(3)According to deck-molding placement layer by layer into stairstepping, when reaching lower girt strip(3)During the position of bottom, as stairstepping constantly extends, lower rib
Beam(3)Concreting is continuously pushed ahead.
3. according to claim 1 based on BIM profiled sheets-armored concrete hollow sandwich floor construction engineering method, it is special
Levy and be:The step(10)In upper girt strip(1)Concrete and building cover board(4)Concrete will be poured simultaneously, and casting method is used
" catching up with slurry processes ", i.e., first pour girt strip(1), according to upper girt strip(1)High stratification is poured, into stairstepping, when reaching upper girt strip(1)Top
During the position of plate bottom, then with building cover board(4)Concrete pour together, as stairstepping constantly extends, beam slab concreting connect
It is continuous to be carried forward.
4. according to claim 3 based on BIM profiled sheets-armored concrete hollow sandwich floor construction engineering method, it is special
Levy and be:The virtual resurfacing thickness of superstructure board concrete is more than thickness of slab, is vibrated repeatedly with the vertical casting direction of vibration board, upper girt strip
(1)Drawn along casting direction support using poker vibrator and vibrated, and real-time inspection building cover board concrete thickness, vibrate and used after finishing
Wooden float is floating;At construction joint or have levelling with wooden float at built-in fitting and joint bar;Pour building cover board(4)Do not allowed during concrete
Concrete is spread out and put on vibrating spear.
5. according to claim 1 based on BIM profiled sheets-armored concrete hollow sandwich floor construction engineering method, it is special
Levy and be:The superstructure support system includes main support, operating platform, secondary support and four parts of 1.5m adjusting meanss, main branch
Support is set according to host node spacing dimension, and pair support is made up of the steel pipes of Φ 48 × 3.5, is not cut by main support support
Power key provides support, and before off-load, pair support will first be removed, and 1.5m adjusting meanss are located at main support and profiled sheet(5)It
Between, for unloading.
6. according to claim 1 based on BIM profiled sheets-armored concrete hollow sandwich floor construction engineering method, it is special
Levy and be:The upper girt strip(1)Between be additionally provided with waffle beam, waffle beam and upper girt strip(1)It is located at and online is constituted on sustained height
Lattice beam, and waffle beam is located at lower girt strip(3)The hollow top position of the macroreticular lower grid beams that are surrounded.
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CN115142601A (en) * | 2022-06-06 | 2022-10-04 | 华通建设发展集团有限公司 | Construction method for building floor system based on BIM profiled steel sheet reinforced concrete sandwich |
CN115142601B (en) * | 2022-06-06 | 2023-09-22 | 华通建设发展集团有限公司 | Construction method for reinforced concrete sandwich floor based on BIM profiled steel sheet |
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