CN114953162A - Prefabricating method of heat-preservation and sound-insulation integrated assembly type composite floor slab - Google Patents
Prefabricating method of heat-preservation and sound-insulation integrated assembly type composite floor slab Download PDFInfo
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- CN114953162A CN114953162A CN202210667725.0A CN202210667725A CN114953162A CN 114953162 A CN114953162 A CN 114953162A CN 202210667725 A CN202210667725 A CN 202210667725A CN 114953162 A CN114953162 A CN 114953162A
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- 238000009413 insulation Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000002131 composite material Substances 0.000 title claims abstract description 26
- 238000004321 preservation Methods 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 91
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 44
- 239000010959 steel Substances 0.000 claims abstract description 44
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 31
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 26
- 229920000642 polymer Polymers 0.000 claims abstract description 26
- 238000009417 prefabrication Methods 0.000 claims abstract description 13
- 239000004567 concrete Substances 0.000 claims abstract description 11
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 39
- 238000003860 storage Methods 0.000 claims description 34
- 238000003825 pressing Methods 0.000 claims description 28
- 238000007790 scraping Methods 0.000 claims description 23
- 238000010276 construction Methods 0.000 claims description 19
- 238000005452 bending Methods 0.000 claims description 3
- 238000009415 formwork Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000007493 shaping process Methods 0.000 abstract description 3
- 230000002787 reinforcement Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 22
- 239000007787 solid Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000013461 design Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005034 decoration Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000011345 viscous material Substances 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 239000012783 reinforcing fiber Substances 0.000 description 2
- 229920002748 Basalt fiber Polymers 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/0804—Cleaning containers having tubular shape, e.g. casks, barrels, drums
- B08B9/0808—Cleaning containers having tubular shape, e.g. casks, barrels, drums by methods involving the use of tools, e.g. by brushes, scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
- B28B13/0215—Feeding the moulding material in measured quantities from a container or silo
- B28B13/023—Feeding the moulding material in measured quantities from a container or silo by using a feed box transferring the moulding material from a hopper to the moulding cavities
- B28B13/0235—Feeding the moulding material in measured quantities from a container or silo by using a feed box transferring the moulding material from a hopper to the moulding cavities the feed box being provided with agitating means, e.g. stirring vanes to avoid premature setting of the moulding material
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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
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/88—Insulating elements for both heat and sound
- E04B1/90—Insulating elements for both heat and sound slab-shaped
-
- 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
- E04B5/17—Floor structures partly formed in situ
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/90—Passive houses; Double facade technology
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Acoustics & Sound (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The invention relates to the technical field of concrete structure buildings, in particular to a prefabrication method of a heat-preservation and sound-insulation integrated fabricated composite floor slab. S1: the double-screw feeder produces polymer mortar with consistent material surface density through an adjusting device; s2: respectively paving upper-layer polymer mortar and lower-layer polymer mortar on the top and the bottom of the sound insulation board to form a heat-insulating and sound-insulating disassembly-free template, and paving reinforcing nets in the two layers of polymer mortar; s3: after the polymer mortar of the upper layer and the lower layer is solidified, arranging a small groove on the surface of the polymer mortar of the upper layer to form a rough surface; s4: exempt from to tear open template, reinforcing bar net piece and steel bar truss at the integrated prefabricated shaping as an organic whole floor of mill through the heat preservation sound insulation, transported to the job site from the mill, solved the floor reinforcing bar and mostly had the constructional reinforcement, reinforcing bar intensity can not full play, the extravagant problem of material.
Description
Technical Field
The invention relates to the technical field of concrete structure buildings, in particular to a prefabrication method of a heat-preservation and sound-insulation integrated fabricated composite floor slab.
Background
With the advance of the industrialization process of buildings in China, the assembled buildings are further developed. The large-span floor slab is limited by the hoisting capacity of hoisting equipment, the large-span floor slab is usually formed by splitting the large-span floor slab into a plurality of prefabricated composite floor slabs and then splicing the prefabricated composite floor slabs, the joint of the two composite floor slabs is constructed in a cast-in-place mode, and the strength of the joint is weak due to the existence of construction joints, so that the safety of the whole structure is reduced. In order to improve the integral performance of the composite floor slab, the existing processing method is to extend the beard ribs from two sides of the prefabricated composite slab, reserve the post-cast strip and pour the post-cast strip together with the cast-in-place layer, the prefabricated composite slab with the beard ribs brings adverse effects to transportation and hoisting, and the construction speed is also influenced.
The prefabricated composite floor slab is mainly formed by superposing prefabricated slabs and a reinforcement cage and pouring concrete; the prefabricated composite floor slab has good integrity, flat surface and convenient decoration of a finish coat, and the prefabricated composite floor slab has good integrity and continuity and is beneficial to enhancing the seismic performance of buildings, thereby being suitable for high-rise buildings and large-bay buildings with higher requirement on integral rigidity.
But prior art is when prefabricated coincide floor, cause the material to block up in because the material gets into double helix feeder simultaneously, the even ejection of compact of batcher can't be guaranteed, make the material table density of output inconsistent, then it is poor to lead to the contact effect of later stage concrete, cause the intensity reduction after the shaping of later stage floor, make the bearing capacity of floor descend, and some viscous material can be attached to on the feed cylinder inner wall, treat that the material placement time is a specified duration caking big or impurity particle is big in the material, still take place easily to block up in the transmission course, influence work efficiency's problem.
The prior art also has the following problems:
1. the method is characterized in that the rooms of civil buildings in China, particularly residential buildings, are small, the thickness of the full cast-in-place concrete floor is small (usually 100mm can be met, the local large rooms and the kitchen and toilet are 110 mm-120 mm), laminated slabs are adopted, the integral thickness of the floor is increased (60 +60=120 mm), and the use clearance of the building is reduced; meanwhile, most of the floor slab steel bars are constructional steel bars, the strength of the steel bars cannot be fully exerted, and materials are wasted; in addition, the thickness of the overlapping layer is small, so that the hydroelectric pipeline is not convenient to embed.
2. The beard rib is reserved at the end of the prefabricated plate, the joints of the plate and the plate, the plate and the beam, the plate and the column and the plate column wall are caused, the collision of the steel bars is avoided, the complexity is greatly increased, the difficulty and the process of deep design, production and construction are greatly increased, the efficiency of design, production and construction is reduced, and meanwhile the engineering quality is difficult to guarantee.
3. The construction still adopts full hall scaffold frame and full formwork.
4. The advantages of the fabricated floor slab cannot be fully exerted, and the construction cost is increased by 50 yuan per square meter compared with the construction cost of a full cast-in-place floor slab.
Disclosure of Invention
The invention aims to provide a prefabrication method of a heat-insulation and sound-insulation integrated assembled composite floor slab, and solves the problems that most of floor slab reinforcing steel bars are constructional reinforcing steel bars, the strength of the reinforcing steel bars cannot be fully exerted, and materials are wasted.
The invention is realized by the following technical scheme:
the method comprises the following steps:
s1: the double-screw feeder produces polymer mortar with consistent material surface density through an adjusting device;
s2: respectively paving upper-layer polymer mortar and lower-layer polymer mortar on the top and the bottom of the sound insulation board to form a heat-insulating and sound-insulating disassembly-free template, and paving reinforcing nets in the two layers of polymer mortar;
s3: after the polymer mortar of the upper layer and the lower layer is solidified, a small groove is formed on the surface of the polymer mortar of the upper layer;
s4: the heat-insulation sound-insulation disassembly-free template, the steel bar net piece and the steel bar truss are integrally prefabricated and formed into an integrated floor slab in a factory and transported to a construction site from the factory;
s5: and after reinforcing steel bars are added to the upper layer of the integrated floor slab, pouring concrete to form a composite floor slab.
Further, the prefabricating method of the integrated floor slab in the step S4 further includes:
the reinforcing bar net piece includes upper reinforcing bar net piece and lower floor's reinforcing bar net piece, and upper reinforcing bar net piece and lower floor's reinforcing bar net piece connect into the reinforcing bar net frame through the steel bar truss, and the reinforcing bar net frame passes through the connecting piece and fixes with the exempting from to tear open template of heat preservation sound insulation function.
Further, the reinforcing mesh comprises transverse reinforcing steel bars and vertical reinforcing steel bars, and the transverse reinforcing steel bars and the vertical reinforcing steel bars are crossed at intervals to form a net structure.
Further, the steel bar truss prefabricating method comprises the following steps:
s41: selecting a proper steel bar diameter according to requirements, and selecting three skeleton steel bars and three web member steel bars;
s42: forming three skeleton reinforcing steel bars into a three-dimensional truss with a space triangular structure, wherein one is an upper chord reinforcing steel bar, the other two are lower chord reinforcing steel bars, the upper chord reinforcing steel bar and the lower chord reinforcing steel bar are connected with web member reinforcing steel bars, and the bottoms of the web member reinforcing steel bars are bent into V-shaped support legs contacted with the bottom plate
S43: the bending is made by mechanical automatic forming.
Further, adjusting device includes solid fixed cylinder and storage cylinder, the intercommunication has the storage cylinder on the double screw feeder, the open end of storage cylinder is equipped with the aggregate cylinder, the through hole that communicates with the storage cylinder is seted up to the inner wall of aggregate cylinder, the one end activity of solid fixed cylinder runs through the storage cylinder, the other end of solid fixed cylinder is connected with the motor, the interval is equipped with 4 rotor plates on the solid fixed cylinder lateral wall in arranging the storage cylinder in, be equipped with the pivot on the solid fixed cylinder, the tip activity of pivot runs through the aggregate cylinder and extends to last, be equipped with 4 press plates on arranging the pivot outer wall in the storage cylinder in, be equipped with adjusting part in the pivot, adjusting part is used for moving press plate towards the rotor plate, still be equipped with in the pivot and carry out clear subassembly of scraping with storage cylinder and aggregate cylinder inner wall.
Prior art is when prefabricated coincide floor, because the material gets into in the double helix feeder simultaneously, the dosing is not realized, cause the material to block up, the even ejection of compact of batcher can't be guaranteed, make the material table density of output inconsistent, then it is poor to lead to the contact effect of later stage concrete, cause the intensity reduction after the shaping of later stage floor, make the bearing capacity of floor descend, and prior art adopts the pump sending machine in order to realize the dosing, because the pump sending machine needs continuous feed, need artifical interval 8 minutes just need stop, so not only time cost is higher, and can not reach the purpose of dosing completely, some sticky material can be attached to on the feed cylinder inner wall even, it is big to treat that the material placement time caking is of a specified duration is big or impurity particle is big in the material, still take place the jam in the transmission course easily, influence work efficiency's problem. According to the invention, the pressing plate moves towards the rotating plate through the adjusting assembly, so that materials can be uniformly fed into the screw conveyor, the quantitative feeding purpose is realized, and the materials attached to the inner walls of the material storage barrel and the material collecting barrel can be cleaned.
Further, the adjusting part includes the pin, the pin sets up in the pivot of aggregate section of thick bamboo, the fixed cylinder cover is located on the outer wall of pivot, the outer wall of pivot is through first spring and fixed cylinder wall connection, and be equipped with the slider on the both sides wall of pivot relatively, set up on the fixed cylinder inner wall with slider matched with rectangular channel, one side that the fixed cylinder was kept away from in the pivot is equipped with the expansion board, be equipped with the cavity in every rotor plate, in the cavity was arranged in to the lower extreme according to the clamp plate, the bottom according to the clamp plate is connected through the bottom of at least one second spring with the cavity inner wall, be equipped with the buckler between rotor plate and the clamp plate. The problem that the resistivity of a pressing plate and a rotating plate is increased in the rotating process due to the fact that the bottom of the collecting barrel is abraded after materials are accumulated is solved.
Further, scrape the subassembly and including the first flitch of scraping that the one end that the pressing plate is close to the storage cylinder inner wall set up, the flitch is scraped to the second that sets up on the pin, avoids only scraping the material in an area.
Furthermore, a sinusoidal connecting ring is circumferentially arranged at the bottom of the collecting cylinder, a sliding groove is formed in the connecting ring, a connecting rod is arranged on a rotating shaft in the storage cylinder, and a sliding column matched with the sliding groove is arranged on the connecting rod, so that the first scraping plate and the second scraping plate can clean residual materials attached to the inner wall in a large area.
Furthermore, all be equipped with the mud scraper on every pressure board, the mud scraper can be scraped adnexed material on the rotating plate, can clear away adnexed material on the rotating plate by oneself.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the upper and lower reinforcing steel bars of the floor slab can be integrally formed in a factory, the quantity of the reinforcing steel bars bound on the site is reduced, the reserved thickness of a cast-in-place layer of the floor slab is large, the reserved height of the truss is high, pre-buried penetration of an equipment pipeline is facilitated, and the prefabricated part does not have reserved beard bars, so that series of problems of design, production, transportation, construction and the like caused by the existing truss reinforced concrete laminated floor slab can be avoided.
2. According to the invention, by arranging the rotating shaft, when the rotating shaft moves downwards towards the fixed cylinder, most of the area of the pressing plates is arranged in the cavity, so that the material accumulation amount between the pressing plates overflows to other pressing plates, and the material accumulation amount is uniformly distributed to solve the problem that the resistance of the pressing plates and the rotating plates is increased in the rotating process due to the fact that the bottom of the material collecting cylinder is abraded.
3. According to the invention, the mud scraping plate is arranged on the pressing plate, so that when the rotating shaft moves up and down, the mud scraping plate can scrape materials attached to the rotating plate, and the materials attached to the rotating plate can be automatically removed.
4. In the process of adjusting the material speed, the adjusting component simultaneously solves the problem by the scraping component which scrapes the inner walls of the material storage cylinder and the material collecting cylinder, thereby avoiding production pause caused by disassembly and maintenance, saving a large amount of labor and time, ensuring the efficiency of industrial production and avoiding a large amount of unnecessary economic loss.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a partial cross-sectional view of the present invention;
FIG. 4 is another partial cross-sectional view of the present invention;
FIG. 5 is another schematic structural view of the present invention;
FIG. 6 is a flow chart of the construction method of the present invention;
fig. 7 is an assembly view of the heat-preservation sound-insulation disassembly-free template.
Reference numbers and corresponding part names in the drawings:
1-a double-screw feeder; 2-fixing the cylinder; 3, a material storage cylinder; 4-a material collecting barrel; 5-a through hole; 6, a motor; 7-a rotating plate; 8-a rotating shaft; 9-pressing plate; 10-a stop lever; 11-a first spring; 12-an expansion board; 13-a cavity; 14-a second spring; 15-a waterproof cover; 16-a first scraper plate; 17-a second scraper plate; 18-a connecting ring; 19-a connecting rod; 20-a sliding column; 21-a mud scraper; 22-a first connecting shell; 23-a second connecting shell; 24-a stripper plate; 25-a first via; 26-a second via; 27-a fixing plate; 28-rotating rods; 29-a second gear; 30-toothed belt; 31-steel bar trusses; 32-upper layer reinforcing mesh; 33-lower layer reinforcing mesh; 34-heat preservation and sound insulation disassembly-free template; 35-a connector; 36-sliding block.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1:
as shown in fig. 1 to 7, the method of the present invention comprises the steps of:
s1: the double-screw feeder 1 produces polymer mortar with consistent material surface density through an adjusting device;
s2: the top and the bottom of the sound insulation board are respectively paved with upper layer polymer mortar 5mm-7mm and lower layer polymer mortar 5mm-10mm to form a heat-preservation and sound-insulation disassembly-free template 34, and reinforcing nets are paved in the two layers of polymer mortar, wherein the reinforcing nets can adopt reinforcing fibers, the reinforcing fibers are preferably chopped basalt fibers, also can be alkali-resistant glass fibers and polyvinyl alcohol fibers, the upper layer polymer mortar is preferably 6mm, and the lower layer polymer mortar is preferably 7 mm;
s3: after the polymer mortar of the upper layer and the lower layer is solidified, a small groove is formed on the surface of the polymer mortar of the upper layer;
s4: the heat-insulation sound-insulation disassembly-free template 34, the steel bar net piece and the steel bar truss 31 are integrally prefabricated and formed into an integrated floor slab in a factory and transported to a construction site from the factory;
s5: and after reinforcing steel bars are attached to the upper layer of the integrated floor slab, pouring concrete to form a laminated floor slab.
The following effects can be achieved by the method:
(1) the prefabricated part is light, and the self weight of the prefabricated part is reduced by more than 50 percent; the thickness of a load-bearing part of the floor slab is reduced by 20%, the floor using space is increased by 1cm-2cm, the floor load is reduced by 27 kg/square meter to 55 kg/square meter, and the construction cost is reduced;
(2) the reinforcing steel bars at the upper part and the lower part of the floor slab can be integrally formed in a factory, so that the quantity of the reinforcing steel bars bound on site is reduced;
(3) the reserved thickness of a floor cast-in-place layer is large, and the reserved height of the truss is high, so that the pre-buried penetration of an equipment pipeline is facilitated;
(4) the prefabricated parts have no reserved beard ribs, so that series of problems of design, production, transportation, construction and the like caused by the existing truss reinforced concrete composite floor can be avoided, such as improvement of production and construction efficiency and guarantee of engineering quality;
(5) the prefabricated steel bar net rack is stressed in arrangement, has good stress performance, and can bear the load in the construction stage through design, so that the support-free and template-free construction can be realized;
(6) the heat preservation and sound insulation performance is integrated, the heat preservation, energy saving and sound insulation performance of a green building is met, and meanwhile compared with a traditional cast-in-place floor heat preservation and sound insulation method, the floor using space is further increased by 3 cm-5 cm, and the floor load is further reduced by 100 kg/square meter to 150 kg/square meter;
(7) the bottom plate of the heat-insulating and sound-insulating disassembly-free template 34 can also be made of fiber reinforced calcium silicate boards, cement fiber boards and the like, so that the integration of decoration, sound insulation, heat insulation and bearing is realized, and the later-stage decoration construction period and construction cost are saved.
The method for prefabricating an integral floor slab in step S4 further includes:
the reinforcing bar net piece includes upper reinforcing bar net piece 32 and lower floor's reinforcing bar net piece 33, and upper reinforcing bar net piece 32 and lower floor's reinforcing bar net piece 33 connect into the reinforcing bar net frame through steel bar truss 31, and the reinforcing bar net frame passes through connecting piece 35 and fixes with the exempting from formwork that tears open of heat preservation sound insulation function, and the bonding nature of concrete can be improved to the little recess that sets up.
It should be noted that the reinforcing mesh in step S4 includes transverse reinforcing bars and vertical reinforcing bars, and the transverse reinforcing bars and the vertical reinforcing bars are crossed at intervals to form a mesh structure.
It should be noted that the prefabrication method of the steel bar truss 31 includes:
s41: selecting a proper steel bar diameter according to needs, and selecting three skeleton steel bars and web member steel bars;
s42: the three skeleton reinforcing steel bars form a three-dimensional truss with a space triangular structure, wherein one is an upper chord reinforcing steel bar, the other two are lower chord reinforcing steel bars, the upper chord reinforcing steel bar and the lower chord reinforcing steel bar are connected with web member reinforcing steel bars, and the bottoms of the web member reinforcing steel bars are bent into V-shaped supporting legs contacted with the bottom plate
S43: the bending is made by mechanical automatic forming.
(1) The steel bar trusses 31 should be arranged along the main force-bearing direction of the floor slab;
(2) the distance between the steel bar truss 31 and the edge of the plate is not more than 300 mm, preferably 100mm (the distance between the center of the upper chord steel bar of the truss and the edge of the plate), and the distance between the steel bar truss 31 is not more than 600 mm;
(3) the diameter of the steel bar of the 31 chord member of the steel bar truss is not smaller than 8mm, and the diameter of the steel bar of the web member is not smaller than 4 mm;
(4) the thickness of the concrete protective layer of the steel bar chord member of the steel truss should not be less than 15 mm.
It should be noted that, adjusting device includes solid fixed cylinder 2 and storage cylinder 3, the intercommunication has storage cylinder 3 on double screw feeder 1's the feed end, the open end of storage cylinder 3 is equipped with aggregate cylinder 4, the through hole 5 with storage cylinder 3 intercommunication is seted up to aggregate cylinder 4's inner wall, solid fixed cylinder 2's one end activity runs through storage cylinder 3, gu fixed cylinder 2's the other end is connected with motor 6, gu fixed cylinder 2 is equipped with 4 rotor plates 7 at the interval on the lateral wall, gu fixed cylinder 2 is equipped with pivot 8, the tip activity of pivot 8 runs through aggregate cylinder 4 back and extends to last, be equipped with 4 pressure clamp plates 9 on arranging the 8 outer walls of pivot in storage cylinder 3 in, be equipped with adjusting part on the pivot 8, adjusting part is used for pressing clamp plate 9 towards 7 direction removal of rotor plate, it carries out clear subassembly of scraping with storage cylinder 3 and aggregate cylinder 4 inner walls still to be equipped with in the pivot 8.
The invention pours the material into the material collecting barrel 4, part of the material falls into the material storing barrel 3 along with the through hole 5 in the material collecting barrel 4, the motor 6 drives the rotating plate 7 on the fixed barrel 2 to rotate, the material in the adjacent rotating plate 7 rotates into the double-screw feeder 1, so that the material is divided into several parts, and one part of the material is sequentially conveyed into the double-screw feeder 1 according to a certain speed through the adjusting component, thereby avoiding the material blockage caused by the material simultaneously entering the double-screw feeder 1, ensuring the uniform discharging of the feeder, and the surface density of the output material is consistent, because the viscous material is attached to the inner wall of the material storing barrel 3, the material is blocked after long time for placing the material or the impurity particles in the material are large, the blockage is easy to occur in the transmission process, and the problem of influencing the work efficiency is solved, the scraping component that scrapes the inner wall of the material storage barrel 3 and the material collecting barrel 4 solves the problem, so that production pause caused by disassembling maintenance is avoided, a large amount of labor and time are saved, the efficiency of industrial production is guaranteed, and a large amount of unnecessary economic losses are avoided.
It should be noted that, the adjusting assembly includes a stop lever 10, the stop lever 10 is disposed on the rotating shaft 8 in the material collecting cylinder 4, the outer wall of the rotating shaft 8 is sleeved with the fixed cylinder 2, the outer wall of the rotating shaft 8 is connected with the inner wall of the fixed cylinder 2 through a first spring 11, and the two side walls of the rotating shaft 8 are provided with sliders 36 relatively, the inner wall of the fixed cylinder 2 is provided with a rectangular groove matched with the sliders 36, one side of the rotating shaft 8 away from the fixed cylinder 2 is provided with an expansion plate 12, a cavity 13 is disposed in each rotating plate 7, the lower end of the pressing plate 9 is disposed in the cavity 13, the bottom of the pressing plate 9 is connected with the bottom of the inner wall of the cavity 13 through at least one second spring 14, and a waterproof cover 15 is disposed between the rotating plate 7 and the pressing plate 9. When the motor 6 drives the rotating shaft 8 to rotate, the stop lever 10 on the rotating shaft 8 moves at a certain speed, the stop lever 10 moves the materials in the material collecting barrel 4 to the through hole 5, so that the materials fall into the material storage barrel 3 from the through hole 5, because the materials poured at first are accumulated in the material collecting barrel 4, the expansion plate 12 is pressed by the materials to drive the rotating shaft 8 to move downwards towards the fixed barrel 2, the amount of the materials in the through hole 5 also drops more, the materials are accumulated between certain adjacent pressing plates 9 in a concentrated manner and even are accumulated to be contacted with the bottom of the material collecting barrel 4, if the materials with larger particle size exist in the materials, the bottom of the material collecting barrel 4 is abraded, the resistance of the pressing plates 9 and the rotating plates 7 in the rotating process is increased, therefore, when the rotating shaft 8 moves downwards towards the pressing barrel 2, most area of the pressing plates 9 is arranged in the cavity 13, and the accumulation amount of the materials between the pressing plates 9 overflows to other plates 9, a more uniform distribution is achieved to solve the problem of wear of the bottom of the collection barrel 4, which also leads to an increase in the resistivity of the pressing plate 9 and the rotating plate 7 during rotation.
The scraping assembly includes a first scraping plate 16 disposed at one end of the pressing plate 9 close to the inner wall of the storage cylinder 3, and a second scraping plate 17 disposed on the stop rod 10. When the rotating shaft 8 rotates, the first scraping plate 16 on the pressing plate 9 and the second scraping plate 17 on the stop lever 10 scrape the inner walls of the material collecting barrel 4 and the material storage barrel 3 respectively, when materials in the material collecting barrel 4 are less gradually, the pressure on the expansion plate 12 is reduced gradually, therefore, the first spring 11 recovers elasticity, the rotating shaft 8 gradually moves up, the rotating shaft 8 moves up, the range of the first scraping plate 16 and the second scraping plate 17 also gradually rises, and the materials are prevented from being scraped only in one region.
It should be noted that a sinusoidal connecting ring 18 is arranged along the circumferential direction of the bottom of the material collecting barrel 4, a chute is formed in the connecting ring 18, a connecting rod 19 is arranged on the rotating shaft 8 arranged in the material storing barrel 3, and a sliding column 20 matched with the chute is arranged on the connecting rod 19. When a small amount of material remains in the material collecting barrel 4, the first spring 11 and the second spring 14 both recover elasticity, the rotating shaft 8 recovers to an initial state, the initial state is the position of the rotating shaft 8 when no material exists in the material collecting barrel 4, the sliding column 20 on the rotating shaft 8 enters the chute, because the rotating shaft 8 only vertically moves up and down and does not shift left and right, the sliding column 20 does not shift, after the sliding column 20 rises, the sliding column 20 can directly enter the chute, through the rotation of the rotating shaft 8, the sliding column 20 moves in the chute, and the connecting ring 18 is in a sine shape, the chute is also in a sine shape, the sliding track of the sliding column 20 in the chute is in a concave-convex wavy shape, so that the sliding column 20 can move up and down, the sliding column 20 can drive the rotating shaft 8 to move up and down in the up and down process, the rotating shaft 8 can drive the first scraping plate 16 and the second scraping plate 17 to continuously scrape up and down by moving up and down by up and down when the rotating shaft 8 moves up and down, so that the first scraper plate 16 and the second scraper plate 17 can clean the residual materials attached to the inner wall in a large area.
It should be noted that each pressing plate 9 is provided with a scraper 21, most of the materials move through the rotating plate 7, the viscous materials are adhered to the rotating plate 7 for a long time and are condensed into blocks, and the cover needs to be opened for cleaning after the work is finished, which takes a lot of time.
Example 2:
on the basis of example 1, there is another embodiment:
be equipped with first connecting shell 22 on double helix feeder 1's the discharge end, be equipped with second connecting shell 23 on the first connecting shell 22 perpendicularly, be equipped with the drain hole on the second connecting shell 23, be equipped with the hose in the first connecting shell 22, the one end and the discharge end intercommunication of hose, the other end and the drain hole intercommunication of hose, first through-hole 25 has been seted up to first connecting shell 22, second connecting shell 23 sets up the second through-hole 26 with first through-hole 25 intercommunication, it scrapes the linkage subassembly that moves the interior material of hose to arrange in and be equipped with on the outer solid fixed cylinder 2 of storage section of thick bamboo 3. Carry out extrusion once more through the linkage subassembly after the 1 ejection of compact of double helix feeder to the material in the hose for material density is more careful, effectively prevents to block up.
The linkage subassembly includes and is equipped with first gear on arranging the outer solid fixed cylinder 2 of storage silo 3 in, be equipped with fixed plate 27 on first connection shell 22, it is provided with dwang 28 to rotate on fixed plate 27, be equipped with second gear 29 on the dwang 28, first gear passes through the cingulum 30 and is connected with second gear 29, the tip of dwang 28 is equipped with stripper plate 24, 24 both ends rounding respectively of stripper plate set up, the cost is saved, when motor 6 starts, first gear passes through the cingulum 30 and drives second gear 29 and rotate, thereby it rotates to drive stripper plate 24, the rounding at 24 both ends of stripper plate sets up and can prevent to hinder the hose.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. A prefabrication method of a heat-insulation sound-insulation integrated assembled composite floor slab is characterized by comprising the following steps:
s1: the double-screw feeder (1) produces polymer mortar with consistent material surface density through a regulating device;
s2: the top and the bottom of the sound insulation board are respectively paved with upper layer polymer mortar and lower layer polymer mortar to form a heat-preservation and sound-insulation disassembly-free template (34), and reinforcing nets are paved in the two layers of polymer mortar;
s3: after the polymer mortar of the upper layer and the lower layer is solidified, arranging a small groove on the surface of the polymer mortar of the upper layer to form a rough surface;
s4: the heat-insulation and sound-insulation disassembly-free template (34), the steel bar net and the steel bar truss (31) are integrally prefabricated and formed into an integrated floor slab in a factory, and the integrated floor slab is transported to a construction site from the factory;
s5: and after reinforcing steel bars are added to the upper layer of the integrated floor slab, pouring concrete to form a composite floor slab.
2. The method for prefabricating a heat and sound insulation integrated fabricated composite floor slab as claimed in claim 1, wherein the step S4 further comprises:
the steel bar net piece comprises an upper layer of steel bar net piece (32) and a lower layer of steel bar net piece (33), the upper layer of steel bar net piece (32) and the lower layer of steel bar net piece (33) are connected into a steel bar net rack through a steel bar truss (31), and the steel bar net rack is fixed with the heat-preservation sound-insulation non-dismantling formwork (34) through a connecting piece (35).
3. The prefabrication method of a heat-insulation sound-insulation integrated assembled composite floor slab as claimed in claim 2, wherein the reinforcing mesh comprises transverse reinforcing steel bars and vertical reinforcing steel bars, and the transverse reinforcing steel bars and the vertical reinforcing steel bars are crossed and spaced to form a net structure.
4. The prefabrication method of a heat-insulation and sound-insulation integrated fabricated composite floor slab as claimed in claim 3, wherein the prefabrication method of the steel bar truss (31) comprises the following steps:
s41: selecting a proper steel bar diameter according to requirements, and selecting three skeleton steel bars and three web member steel bars;
s42: forming the three skeleton reinforcing steel bars into a three-dimensional truss with a space triangular structure, wherein one is an upper chord reinforcing steel bar, the other two are lower chord reinforcing steel bars, the upper chord reinforcing steel bar and the lower chord reinforcing steel bar are both connected with web member reinforcing steel bars, and the bottoms of the web member reinforcing steel bars are bent into V-shaped supporting legs which are contacted with the bottom plate;
s43: the bending is made by mechanical automatic forming.
5. The prefabrication method of the heat-preservation sound-insulation integrated assembled composite floor slab as claimed in any one of claims 1 to 4, characterized in that the adjusting device comprises a fixed cylinder (2) and a storage cylinder (3), the feeding end of the double-screw feeder (1) is communicated with the storage cylinder (3), the open end of the storage cylinder (3) is provided with a material collecting cylinder (4), the inner wall of the material collecting cylinder (4) is provided with a through hole (5) communicated with the storage cylinder (3), one end of the fixed cylinder (2) movably penetrates through the storage cylinder (3), the other end of the fixed cylinder (2) is connected with a motor (6), the outer side wall of the fixed cylinder (2) is provided with 4 rotating plates (7) at intervals, the fixed cylinder (2) is provided with a rotating shaft (8), the end part of the rotating shaft (8) movably penetrates through the material collecting cylinder (4) and then extends upwards, the outer wall of the rotating shaft (8) arranged in the storage cylinder (3) is provided with 4 pressing plates (9), be equipped with adjusting part on pivot (8), adjusting part is used for moving according to pressure board (9) towards rotor plate (7) direction, still is equipped with on pivot (8) and carries out clear subassembly of scraping with storage cylinder (3) and charging barrel (4) inner wall.
6. The prefabrication method of a heat-insulation and sound-insulation integrated assembled composite floor slab as claimed in claim 5, wherein the adjusting assembly comprises a stop lever (10), the stop lever (10) is arranged on a rotating shaft (8) in the material collecting cylinder (4), the fixed cylinder (2) is sleeved on the outer wall of the rotating shaft (8), the outer wall of the rotating shaft (8) is connected with the inner wall of the fixed cylinder (2) through a first spring (11), slide blocks (36) are oppositely arranged on two side walls of the rotating shaft (8), a rectangular groove matched with the slide blocks (36) is formed in the inner wall of the fixed cylinder (2), an expansion plate (12) is arranged on one side of the rotating shaft (8) far away from the fixed cylinder (2), a cavity (13) is arranged in each rotating plate (7), the lower end of the pressing plate (9) is arranged in the cavity (13), the bottom of the pressing plate (9) is connected with the bottom of the inner wall of the cavity (13) through at least one second spring (14), a waterproof cover (15) is arranged between the rotating plate (7) and the pressing plate (9).
7. The prefabrication method of a heat-insulation and sound-insulation integrated assembled composite floor slab as claimed in claim 5 or 6, wherein the scraping assembly comprises a first scraping plate (16) arranged at one end of the pressing plate (9) close to the inner wall of the storage cylinder (3) and a second scraping plate (17) arranged on the stop rod (10).
8. The prefabrication method of a heat-insulation and sound-insulation integrated assembled composite floor slab as claimed in claim 7, wherein a sinusoidal connecting ring (18) is circumferentially arranged along the bottom of the material collecting barrel (4), the connecting ring (18) is provided with a chute, a rotating shaft (8) arranged in the material storing barrel (3) is provided with a connecting rod (19), and the connecting rod (19) is provided with a sliding column (20) matched with the chute.
9. The prefabrication method of a heat and sound insulation integrated fabricated composite floor slab as claimed in claim 8, wherein each pressing plate (9) is provided with a mud scraper (21).
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| CN114953162B (en) | 2024-04-26 |
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