CN106760110B - Based on BIM profiled sheet-armored concrete hollow sandwich floor construction engineering method - Google Patents

Based on BIM profiled sheet-armored concrete hollow sandwich floor construction engineering method Download PDF

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Publication number
CN106760110B
CN106760110B CN201611265113.XA CN201611265113A CN106760110B CN 106760110 B CN106760110 B CN 106760110B CN 201611265113 A CN201611265113 A CN 201611265113A CN 106760110 B CN106760110 B CN 106760110B
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concrete
girt strip
profiled sheet
bim
superstructure
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CN106760110A (en
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王建棋
刘轶
刘昊纯
崔高峰
马军
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XINPU CONSTRUCTION GROUP CO Ltd
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XINPU CONSTRUCTION GROUP CO Ltd
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32Floor structures wholly cast in situ with or without form units or reinforcements
    • 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
    • E04G11/00Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36Forms, 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
    • E04G11/40Forms, 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
    • 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
    • E04G11/00Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36Forms, 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
    • E04G11/48Supporting structures for shutterings or frames for floors or roofs
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B2005/324Floor 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

The invention discloses one kind to be based on BIM profiled sheet-armored concrete hollow sandwich floor construction engineering method, and specific step is as follows: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 are poured;Girt strip and building cover board are installed, building cover board reinforcing bar is bound;Pour girt strip concrete and superstructure board concrete.Template due to profiled sheet as casting concrete is directly supported on the frame column on periphery, and provides working face for multiplexing kind operation, is created condition for the multi-level junction operation of multiplexing kind, is greatly accelerated construction speed, shorten the duration.By taking the square Xin Pu as an example, the duration shortens than the original plan duration, this has clear meaning to larger tier building.

Description

Based on BIM profiled sheet-armored concrete hollow sandwich floor construction engineering method
Technical field
The invention belongs to construction engineering method technical fields, and in particular to one kind is based on BIM profiled sheet-armored concrete Hollow sandwich floor construction engineering method.
Background technique
With the continuous development of economy and society, demand of the people to the large span interior space is increasingly promoted.All kinds of style fields The building plans such as shop, market hotel, workshop theater increasingly increase, brisk in the market.The construction of fashioned iron-reinforced concrete composite structure Increasingly pay attention to, new architectural composition is higher and higher for construction process requirement, and prefabricated profiled sheet-reinforced concrete combination is empty Abdomen superstructure is a kind of novel large span(18m-42m)Floor structural form, it, which has, saves amount of reinforcement, reduction engineering cost, Save the duration, save template, anti-seismic performance it is good, from fitting up, saving the advantages that layer is high.In recent years, grinding due to new technology Hair and introduction, the research of profiled sheet-reinforced concrete combination superstructure and application just develop by leaps and bounds.Especially BIM skill The popularization and application of art are that construction industry has the important technical innovation across significance of times, are the hair of hollow sandwich floor construction engineering method Bright and improvement, provides advanced technical support.
In the prior art, presed-steel plate is first processed according to calculated result, is needed to carry out preassembling after processing, be looked at Suitable improper, if improper needs are done over again, computational accuracy is low, waste of manpower and material resources.
Summary of the invention
The technical problem to be solved by the present invention is in the prior art, presed-steel plate is first processed according to calculated result, is added 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 one kind based on BIM profiled sheet-armored concrete hollow sandwich floor construction Engineering method.
The object of the present invention is achieved in the following manner:
Based on BIM profiled sheet-armored concrete hollow sandwich floor construction engineering method, specific step is as follows:
1)Threedimensional model is built using BIM according to superstructure original design drawing, using BIM modeling technique to superstructure original design drawing Deepened, supplemented and perfect, making can be with the construction drawing of site operation;
2)The integrated different data and parameter formed using each component of the BIM technology to superstructure is led from model Out, it is positioned for factory process raw material and site operation;
3)According to step 2)Derived data carry out preprocessing to profiled sheet, high-strength bolt and steel plate connecting elements, and The material processed is transported to construction 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 bottom plate for installing lower girt strip binds the lower reinforcing bar of girt strip and the reinforcing bar of shear connector, then installs the side plate of lower girt strip, It is connected using high-strength bolt with junction steel plate between lower girt strip grid node;
7)Lower girt strip concrete and shear connector concrete are poured, profiled sheet-reinforced concrete combination grid component is formed, Wherein profiled sheet does template in the construction stage, does primary structure member in service stage;
8)After lower girt strip concrete initial set, the bottom plate of girt strip is installed, the reinforcing bar of girt strip in binding, then install girt strip Side plate, connected using high-strength bolt with junction steel plate between upper girt strip grid node;
9)Building cover board is installed, building cover board reinforcing bar is bound;
10)Girt strip concrete and superstructure board concrete are poured, the hollow floor system knot of first layer three-dimensional space stress is formed Structure;
11)After upper girt strip concrete initial set, step 5 is repeated)-10), build second, third ... n-th layer empty stomach building Lid structure;
12)Dismantle 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 root According to deck-molding placement layer by layer at stairstepping, when reaching lower girt strip bottom position, as stairstepping constantly extends, lower girt strip concrete is poured It builds and continuously pushes 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 " first pours girt strip, is poured according to upper girt strip high stratification, at stairstepping, when reaching upper girt strip top plate bottom position, then It is 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 greater than plate thickness, is vibrated repeatedly with the vertical casting direction of vibration board, upper rib Beam is vibrated using poker vibrator along the drawing of casting direction support, and checks building cover board concrete thickness in real time, is used after vibrating Wooden float smoothes out;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 regulating device, master Support is arranged according to host node spacing dimension, and pair support is made of 48 × 3.5 steel pipe of Φ, for what is do not supported by main support Shear connector provide support, before off-load, pair support will first be removed, 1.5m regulating device 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 and upper girt strip, which are located on sustained height, forms upper grid beams, And waffle beam is located at the hollow top position of macroreticular lower grid beams that lower girt strip is 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. all achieve good economic benefit and social benefit.The present invention combines the advantages 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 novel plated spatial structures engineering, " Ecological Civilization Construction " match with " energy conservation saves land " project, have preferable hair Exhibition prospect, construction quality, safety are secure, and construction is technologically advanced, and similar structures project is worth to be promoted the use of.Relative to existing There is technology, beneficial effects of the present invention are as follows:
1, the template due to profiled sheet as rib under placing concrete saves a large amount of plank sheathing and its support, section About fund.
2, profiled sheet is in service stage, because of the compound action of itself and reinforcing bar, concrete, can also replace tension reinforcement, use Steel amount only has 70kg/m2And the 120kg/ m of similar engineering other structures routine2It compares, saving steel 42kg/ m2, therefore subtract The production and installment work for having lacked reinforcing bar, have saved fund.
3, profiled sheet-reinforced concrete combination hollow floor system, span is big, has biggish 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, and the dead load of structure is alleviated, highly beneficial to structure, especially tier building and seismic areas building more has important meaning Justice.
4, convenient for pipelines such as laying communication, electric power, heating and air-conditionings in hollow floor system.And can lay sound insulation, heat preservation, The materials such as shock insulation, heat-insulated, improve the working performance of flooring.
5, the template due to profiled sheet as casting concrete is directly supported on the frame column on periphery, and is multiplexing Kind operation provides working face, creates condition for the multi-level junction operation of multiplexing kind, greatly accelerates construction speed, shortens Duration.By taking the square Xin Pu as an example, the duration shortens than the original plan duration, this has obvious meaning to larger tier building Justice.
6, by applying BIM technology, reduce the rework rate of floor construction medium-pressure type steel plate processing, size is accurate, full hall Frame is set up uses BIM technology to carry out construction simulation with subsequent construction, reduces preassembling recruitment expense, and the duration saved.
By BIM model display, preferably complete with Party A, management, the communication work of quality inspection safety check authorities, add Fast construction efficiency, improves corporate image, has preferable social benefit.
Die mould steel is both template and tendon, is killed two birds with one stone;Steel using amount is small, 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 can be achieved that smaller rise-span ratio, is suitable for large span without column space requirement;Construction project investment is saved, is provided bigger using empty Between;Superstructure construction cost is low, and comfort level is met the requirements;Air-conditioning can be set up in empty stomach, service line no longer needs to furred ceiling.
Detailed description of the invention
Fig. 1 is the sectional view of hollow sandwich building cover structure of the present invention.
Fig. 2 is the structural schematic diagram of hollow sandwich superstructure of the present invention.
Specific embodiment
As shown in Fig. 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, using BIM modeling technique to superstructure original design drawing Deepened, supplemented and perfect, making can be with the construction drawing of site operation;
2)The integrated different data and parameter formed using each component of the BIM technology to superstructure is led from model Out, it is positioned for factory process raw material and site operation;
3)According to step 2)Derived data carry out preprocessing to profiled sheet 5, high-strength bolt and steel plate connecting elements, And the material processed is transported to construction 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 bottom plate for installing lower girt strip 3 binds the lower reinforcing bar of girt strip 3 and the reinforcing bar of shear connector 2, then installs lower girt strip 3 Side plate is connected using high-strength bolt with junction steel plate between lower 3 grid node of girt strip;
7)Lower 3 concrete of girt strip and 2 concrete of shear connector are poured, profiled sheet-reinforced concrete combination grid structure is formed Part, wherein profiled sheet does template in the construction stage, does primary structure member in service stage;
8)After lower 3 concrete initial set of girt strip, the bottom plate of girt strip 1 is installed, the reinforcing bar of girt strip 1 in binding, then install The side plate of girt strip 1 is connected using high-strength bolt with junction steel plate between upper 1 grid node of girt strip;
9)Building cover board 4 is installed, 4 reinforcing bar of building cover board is bound;
10)1 concrete of girt strip and superstructure board concrete are poured, the hollow floor system knot of first layer three-dimensional space stress is formed Structure;
11)After upper 1 concrete initial set of girt strip, step 5 is repeated)-10), build second, third ... n-th layer on an empty stomach Building cover structure;
12)Dismantle superstructure support system.
Step 7)In lower 2 concrete of 3 concrete of girt strip and shear connector pour use " catching up with slurry processes ", first by lower girt strip 3 According to deck-molding placement layer by layer at stairstepping, when reaching lower 3 bottom position of girt strip, as stairstepping constantly extends, lower 3 concrete of girt strip It pours and continuously pushes ahead.
Step 10)In upper 1 concrete of girt strip and 4 concrete of building cover board to pour simultaneously, casting method uses " catching up with slurry processes ", Girt strip is first poured, is poured according to upper 1 high stratification of girt strip, at stairstepping, when reaching upper 1 top plate bottom position of girt strip, then with The concrete of building cover board 4 pours together, and as stairstepping constantly extends, beam slab concreting is continuously carried forward.
The virtual resurfacing thickness of 4 concrete of building cover board is greater than plate thickness, is vibrated repeatedly with the vertical casting direction of vibration board, upper rib Beam 1 is vibrated using poker vibrator along the drawing of casting direction support, and checks building cover board concrete thickness in real time, is used after vibrating Wooden float smoothes out;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 regulating device, main support It is arranged according to host node spacing dimension, pair support is made of 48 × 3.5 steel pipe of Φ, for the shearing that do not supported by main support Key provides support, and before off-load, pair support will be first removed, and 1.5m regulating device is located between main support and profiled sheet, uses In unloading.
Waffle beam is additionally provided between upper girt strip 1, waffle beam and upper girt strip 1, which are located on sustained height, forms upper grid beams, and And waffle beam is located at the hollow top position of macroreticular lower grid beams that lower girt strip 3 is surrounded.
Concrete construction method is as follows:
One, superstructure optimization design and construction simulation are carried out using BIM technology
Construction project to be built is modeled first, model fineness will meet wanting for the prefabricated profiled sheet of guidance and guiding construction It asks.Drawing review is carried out by threedimensional model, optimizes Design of Floors, it is best to obtain under the premise of meeting structure safety Appearance and be convenient for constructing operation.Accurate calculation amount is carried out to compound superstructure with BIM technology, and guides processing factory by BIM model The middle profiled sheet module divided carries out prefabricated, alternative factory's preassembling link, saves duration and cost.
Two, 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 technology, with BIM model, three are carried out to scaffolder Dimension visualization is told somebody what one's real intentions are, and buys full hall frame material according to the bill of materials provided in three-dimensional mould bases software.
Execution conditions:When wind-force is more than or equal to six grades, the extreme weathers such as rain, snow, dense fog stop construction operation.Temperature is 35 Or more and at subzero 5 degrees centigrade or less, should have sunstroke 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(It needs to adjust according to node size It is whole), step square 1.5m sets up, and scaffolding height is that layer height subtracts plate thickness, each step of the upright bar 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 histogram to:Continuous bridging together is set every 4 row's upright bars along Y-direction, is set together every 2 row's upright bars in X direction Continuous bridging.
Horizontal direction:Gross area sets up one of horizontal cross brace every 2 steps from rod end.
Three, lower girt strip profiled sheet installation
According to design drawing and BIM model, girt strip template is substituted using profiled sheet under hollow sandwich panel ceiling for storied building, die mould steel Plate is both bed die and tensional element.Qualified producer is entrusted in the production of steel plate, according to BIM modelling, after the completion of prefabricated, It transports to the standard compliant designated position in construction site and stacks, and with there is appropriate rust preventing.
Execution conditions:When wind-force is more than or equal to six grades, the extreme weathers such as rain, snow, dense fog stop construction operation.Temperature is 35 Or more and at subzero 5 degrees centigrade or less, should have sunstroke prevention or freeze prevention measure, and construct with caution.
Profiled sheet high-strength bolt assembly and connection, specific installation method are as follows:
1. before profiled sheet lifting its size, block number, template and place portion need to be checked by design working drawing and BIM model Position after confirmation ingredient is errorless, is installed with main structure erection sequence and progress respectively according to number.Profiled sheet is being hung It is rough should never to hang movement with slow rate discharge in the process.
2. the profiled sheet without outer packing should use suspender and protector when handling, forbid directly wirerope to be used to bundle It hangs.Lifting process is strictly carried out in accordance with lifting allocation and transportation " ten is inaccurate ", should have special tower crane commanding to command.
3. the position line of laying should be marked on scaffold cross bar before installing profiled sheet.When laying profiled sheet, Ying Gen It is installed in numerical order according to design drawing and BIM model.Lifting is completed and position is after precision adjustment, solid with high-strength bolt Determine connecting node.
4. forbid the lifting construction of profiled sheet as wind speed >=6m/s, in order to avoid cause safety accident or damage steel plate.
Four, lower girt strip and the binding of shear connector reinforcing bar
Five, lower girt strip and shear connector concrete are poured
Execution conditions:When concreting, construction environment temperature is preferably maintained between 5 DEG C -35 DEG C, and winter construction should have 《Concrete in winter engineering construction special scheme》, summer time construction should have cooling measure, carry on construction work at night as far as possible.Concrete pouring construction Before, the acceptances of concealed work such as reinforcing bar should be completed, and pay attention to 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 pours.At stairstepping, when reaching lower girt strip bottom level position, as stairstepping constantly extends, lower girt strip and Shear connector concreting is continuously carried forward.
Six, upper girt strip profiled sheet and building cover board installation
The same step 3 of installation method.
Seven, upper girt strip and the binding of building cover board reinforcing bar
Eight, upper girt strip, building cover board concreting
Execution conditions:When concreting, construction environment temperature is preferably maintained between 5 DEG C -35 DEG C, and winter construction should have 《Concrete in winter engineering construction special scheme》, summer time construction should have cooling measure, carry on construction work at night as far as possible.Concrete pouring construction Before, the acceptances of concealed work such as reinforcing bar should be completed, and pay attention to retaining cured under same condition and standard maintaining test block when pouring.
1. upper girt strip, plate will pour simultaneously, casting method uses " catching up with slurry processes ", i.e., first pours girt strip, be layered according to deck-molding It pours.At stairstepping, poured when reaching back board bottom position, then 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 plate thickness, occurrence is depending on plate thickness.It is vertical with vibration board Casting direction vibrates repeatedly, and girt strip is vibrated using poker vibrator along the drawing of casting direction support, and checks board concrete with real-time Thickness is smoothed out after vibrating with wooden float.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 1/3 range of centre 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 to keep off jail.
4. just must allow 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 be rinsed with water it is clean after, first paving is poured One layer of cement slurry, then proceedes to casting concrete, should take responsible measures, new-old concrete is made to combine closely.
Combined hollow interlayer superstructure points for attention and quality requirement:
When full hall frame is set up, it should guarantee there is one under each shear connector according to construction drawing and BIM information model bit line blow-down A support should take responsible measures especially when constructing first floor lid, control sedimentation of the frame body under construction loads effect.
Girt strip concrete reaches 100% design strength rear collapsible die on this layer, when form removable should check upper layer superstructure from Whether weight and its construction loads are more than this layer of working load, otherwise should add bracket support by calculating under this layer, should ensure that Open-spandrel sandwich board span centre is no less than a supporting point(Shear connector nearby is supported among column net).
Combined hollow sandwich plate requires to press 1/500 arch camber of span.
Drainage grade slope by structure needed for combined hollow sandwich plate roofing, the gradient press construction drainage slope requirement.
Forbid opening holes on combined hollow sandwich plate up/down rib and shear connector, as relevant speciality need to really open up equipment opening Designer should be notified to make especially processing when hole, before construction.
Material therefor:
1. profiled sheet uses Q345-B, F(GB-700-88)Steel production, thickness and size follow design objective.Even The side junction steel plate for connecting lower rib is made of material steel identical with bottom profiled sheet, steel plate thickness and weld size According to design requirement.Bottom plate is connected using high-strength bolt at profiled sheet node, and medial surface is connected using steel plate welding at node It connects.Prefabricated profiled sheet examines qualification in the regular producer production for having qualification, through Quality Inspector's self-test, and through supervising engineer Afterwards, construction site installation can be transported to.
2. reinforcing bar:Using HRB400 grades of reinforcing bars, fy=360/mm2, it must be qualified through Quality Inspector's self-test when the entering of reinforcing steel bar, then pass through Supervising engineer's witness sampling can be used for engineering after transferring to the experiment detection unit detection for having corresponding qualification qualified.
3. profiled sheet bottom surface is connected using high-strength bolt, 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 length follows design requirement.Profiled sheet bottom surface is anchored at Peg in concrete uses Q345 steel, and diameter is Φ 10, and 8.8 grades of peg grade, welding when all pegs are prefabricated in the factory It completes, avoids on-the-spot welding.Peg be steel coagulate combination beam in common heavy connection, its effect be just resistant to concrete with The straight skidding that fashioned iron face generates under load action guarantees fashioned iron and concrete as a common stress of composite entity.
4. welding material
1. welding rod:It is selected by design requirement, it is necessary to have the certification of fitness and product description.E50××(GB5118)Weldering Item is used for HRB335 grades of steel, and diameter is φ 3.2mm;E55 ×× (GB5118) welding rod is used for HRB400 grades of steel.Profiled sheet It is all made of steel Q345 with upper and lower rib connecting plate, welding rod accordingly determines.
2. carbon dioxide welding wire:H08H08A H08E diameter is φ 1.2mm;CO2Gas:Purity index >=99.98%.
5. concrete material requested
1. cement:Portland cement or ordinary 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 notification sheet.Cement should have the appearance quality certification and test report of marching into the arena.
2. sand:Middle sand, clay content should meet national current standard less than 2%《Regular concrete sand quality standard and inspection Proved recipe method》.
3. rubble:Partial size, gradation and the place of production of stone should meet the requirement of concrete mix notification sheet, and stone contains mud Within 1%, the flat-elongated particles content of stone should be controlled within 15% for amount control.
Application example:
1. Hebi JinRong Building construction project is located at the Henan Province Hebi City Qibin District south main road Qi Shui and intersects with towards the taste and style of the song Mouth northeast corner, is an important large public building project, occupies comprehensive service function area of Hebi City city the Qihe River ten and builds greatly First of project, as Hebi City landmark, it is known as northern first high building in Henan.27 mu of land occupation, high 38 floor in mansion, 168 meters, by one Seat main building and two annex compositions, overall floorage was up to 10.6 ten thousand square metres, in formal completion in 2013.Mansion architectural image is set Meter is using Qi-river crucian as Inspiration Sources, therefore the also referred to as mansion Qi Ji, and main application is finance commercial affairs, office, be one it is comprehensive, The Social Culture facility of public welfare.The project application《The prefabricated high-strength spiral shell of profiled sheet-armored concrete based on BIM technology It tethers and connects composite open-web plate construction》Achievement, obtain the consistent favorable comment of each side.
2. new Pu Plaza Project is located at Zhengzhou City worker road and Huaihe Road, 50,000 squares of construction area, be a modernization Building, main building use frame core wall structure, and engineering integrated engineering inspection of quality reaches quality supervised department excellent project standard. Excellent construction quality effect enables social each visiting person give to highly praise.This engineering is with its excellent quality characteristics, abundant Advanced technical application content has attracted industry colleague's to view and emulate reference, has fully demonstrated building technology development with large project and has been The exemplary role of support has 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 in conjunction with 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 on the inside of plate, pours formation fashioned iron-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 as Rc Open-web Sandwich Plates structural form three-dimensional space stress Abdomen building cover structure.
First using BIM modeling, prefabricated Steel section member when the floor construction, a profiled sheet assembling is poured twice The construction process built.Wherein profiled sheet does template in the construction stage, does primary structure member in service stage.
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, it is promoted by simple plane contignation to three-D space structure system, rigidity and entirety Property be superior to general traditional beam and slab type structure.The preferable profiled sheet of examining tensile behavior is indulged muscle by high-strength bolt connection and bottom and is made For rib under hollow floor system, tensile stress is undertaken;The preferable concrete of Compressive Performance undertakes compression as rib on hollow floor system, by Power form is more reasonable, is worthy to be popularized in all kinds of large span industry and civil buildings.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those skilled in the art, Without depart from that overall concept of the invention, several changes and improvements can also be made, these also should be considered as of the invention Protection scope.

Claims (6)

1. being based on BIM profiled sheet-armored concrete hollow sandwich floor construction engineering method, it is characterised in that:Specific step is as follows:
1)Threedimensional model is built using BIM according to superstructure original design drawing, superstructure original design drawing is carried out using BIM modeling technique In-depth, supplement and it is perfect, making can be with the construction drawing of site operation;
2)The integrated different data and parameter formed using each component of the BIM technology to superstructure is exported from model, is used It is positioned in factory process raw material and site operation;
3)According to step 2)Derived data carry out preprocessing to profiled sheet, high-strength bolt and steel plate connecting elements, and will add The good material of work is transported to construction 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)It wraps;
6)Lower girt strip is installed(3)Bottom plate, bind lower girt strip(3)Reinforcing bar and shear connector(2)Reinforcing bar, then lower girt strip is installed (3)Side plate, lower girt strip(3)It is connected using high-strength bolt with 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 does template in the construction stage, does primary structure member in service stage;
8)To lower girt strip(3)After concrete initial set, girt strip is installed(1)Bottom plate, girt strip in binding(1)Reinforcing bar, then install Upper girt strip(1)Side plate, upper girt strip(1)It is connected using high-strength bolt with junction steel plate between grid node;
9)Building cover board is installed(4), bind building cover board(4)Reinforcing bar;
10)Pour girt strip(1)Concrete and superstructure board concrete form the hollow floor system knot of first layer three-dimensional space stress Structure;
11)To upper girt strip(1)After concrete initial set, step 5 is repeated)-10), build second, third ... n-th layer empty stomach building Lid structure;
12)Dismantle superstructure support system.
2. according to claim 1 be based on BIM profiled sheet-armored concrete hollow sandwich floor construction engineering method, spy Sign is:The step 7)In lower girt strip(3)Concrete and shear connector concrete pour use " catching up with slurry processes ", first by lower girt strip (3)According to deck-molding placement layer by layer at stairstepping, when reaching lower girt strip(3)When the position of bottom, as stairstepping constantly extends, lower girt strip (3)Concreting is continuously pushed ahead.
3. according to claim 1 be based on BIM profiled sheet-armored concrete hollow sandwich floor construction engineering method, spy Sign is:The step 10)In upper girt strip(1)Concrete and building cover board(4)Concrete will pour simultaneously, and casting method uses " catching up with slurry processes ", i.e., first pour girt strip(1), according to upper girt strip(1)High stratification pours, at stairstepping, when reaching upper girt strip(1)Top When board bottom position, 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 be based on BIM profiled sheet-armored concrete hollow sandwich floor construction engineering method, spy Sign is:The virtual resurfacing thickness of superstructure board concrete is greater than plate thickness, is vibrated repeatedly with the vertical casting direction of vibration board, upper girt strip (1)It is vibrated using poker vibrator along the drawing of casting direction support, and checks building cover board concrete thickness in real time, used after vibrating Wooden float smoothes out;At construction joint or have levelling with wooden float at built-in fitting and joint bar;Pour building cover board(4)Do not allow when concrete Concrete is spread out and put on vibrating spear.
5. according to claim 1 be based on BIM profiled sheet-armored concrete hollow sandwich floor construction engineering method, spy Sign is:The superstructure support system includes main support, operating platform, secondary support and four parts of 1.5m regulating device, main branch Support is arranged according to host node spacing dimension, and pair support is made of 48 × 3.5 steel pipe of Φ, not cut by main support support Power key provides support, and before off-load, pair support will be first removed, and 1.5m regulating device is located at main support and profiled sheet(5)It Between, for unloading.
6. according to claim 1 be based on BIM profiled sheet-armored concrete hollow sandwich floor construction engineering method, spy Sign is:The upper girt strip(1)Between be additionally provided with waffle beam, waffle beam and upper girt strip(1)It is located on sustained height and forms online Lattice beam, and waffle beam is located at lower girt strip(3)The hollow top position of the macroreticular lower grid beams surrounded.
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CN111350268A (en) * 2018-12-23 2020-06-30 哈密西部建设有限责任公司 Construction method of concrete structure self-waterproof system in sewage treatment engineering
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