CN111877627A - Full-prefabricated sawtooth floor slab support-free construction method based on BIM technology superposed beams - Google Patents
Full-prefabricated sawtooth floor slab support-free construction method based on BIM technology superposed beams Download PDFInfo
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- CN111877627A CN111877627A CN202010707030.1A CN202010707030A CN111877627A CN 111877627 A CN111877627 A CN 111877627A CN 202010707030 A CN202010707030 A CN 202010707030A CN 111877627 A CN111877627 A CN 111877627A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
- E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
- E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
- E04B5/28—Cross-ribbed floors
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
- E04C2/32—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material
- E04C2/324—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material with incisions or reliefs in the surface
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to a full-prefabricated sawtooth floor support-free construction method based on a BIM (building information modeling) technology composite beam, which comprises the steps of hoisting the composite beam, hoisting the floor, penetrating a steel strand into a supporting rod, fixedly connecting two ends of the steel strand to two opposite composite beams respectively, grouting a steel pipe through a grouting pipe by using a grouting machine, performing leveling and cleaning treatment on the upper surface of a lower plate, hoisting an upper plate to be buckled on the lower plate, grouting an inserting rod by using the grouting machine, sealing grout outlets by using rubber plugs when grout outlets on one inserting rod start to discharge grout until all grout outlets are sealed, and performing leveling and cleaning treatment on the upper surface of the upper plate. The invention has the effect of avoiding the influence of rain on the maintenance of concrete to a certain extent.
Description
Technical Field
The invention relates to the technical field of house construction, in particular to a full-prefabricated sawtooth floor slab support-free construction method based on BIM technology superposed beams.
Background
At present in high building construction process, generally need through BIM technical simulation construction to prevent that construction drawing has the mistake to lead to time limit for a project extension or rework, after ground pouring foundation pillar, then install the composite beam on the foundation pillar, and pour the concrete on the connected node of foundation pillar and composite beam, after the composite beam construction is accomplished, need build the coincide floor on the composite beam, then lay the steel reinforcement cage at the floor plane, pour a layer of concrete again, form overall structure with preceding composite floor and composite beam.
The traditional Chinese patent with publication number CN110005110A discloses a construction method of a support-free prestressed composite floor slab, during construction, a prefabricated prestressed steel truss bottom plate produced in a factory is transported to a construction site, the prefabricated prestressed bottom plate is assembled and assembled, two ends of the prefabricated prestressed bottom plate are respectively arranged at the top ends of main beams, a secondary beam is further arranged between the two main beams, the middle position of the lower surface of the prefabricated prestressed bottom plate is supported by the secondary beam, and concrete is integrally poured after the assembly is completed.
The above prior art solutions have the following drawbacks: after the laminated slab is assembled and finished, concrete needs to be integrally poured, large-area concrete pouring is long in curing time, and if the laminated slab is rainy, curing is troublesome, so that the construction progress is influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a full-prefabricated sawtooth floor slab support-free construction method based on a BIM (building information modeling) technical composite beam, which has the advantage of avoiding the influence of rain on the maintenance of concrete to a certain extent.
The above object of the present invention is achieved by the following technical solutions:
a full-prefabricated sawtooth floor support-free construction method based on a BIM technology superposed beam comprises the following steps:
step 1: prefabricating a laminated beam and processing a floor slab, wherein the floor slab comprises an upper layer plate and a lower layer plate which are mutually meshed and connected, the lower surface of the upper layer plate is fixedly connected with a plurality of ribs, the upper surface of the lower layer plate is provided with a groove for clamping the ribs, the upper layer plate and the lower layer plate are both provided with cavities, a steel reinforcement cage is laid in each cavity, the lower layer plate is penetrated with a plurality of support rods along the length direction of the groove, fixed columns for inserting the support rods are vertically and pre-embedded on the laminated beam, the upper surface of the lower layer plate is vertically and fixedly connected with an inserted bar, one end of the inserted bar is inserted into the cavity of the lower layer plate, the other end of the inserted bar is inserted into and penetrates out of the upper layer plate, the inserted bar is hollowed out, a plurality of grout outlet holes are formed in the side wall of the inserted bar, and a grout hole is formed in, hanging rings are embedded in the upper surfaces of the upper layer plate and the lower layer plate;
step 2: transporting the superposed beam and the floor slab to a construction site;
and step 3: hoisting the superposed beam, installing the superposed beam on the foundation column, and pouring concrete on a connecting node of the foundation column and the superposed beam;
and 4, step 4: hoisting the lower plate on the superposed beam, and controlling the fixed column on the superposed beam to be inserted into the supporting rod;
and 5: cutting off the hanging ring on the lower plate by a cutting machine;
step 6: cleaning sundries on the upper surface of the lower plate;
and 7: hoisting and buckling the upper plate on the lower plate, and controlling the insertion rod to insert and penetrate out of the upper plate;
and 8: cutting off the hanging ring on the upper plate through a cutting machine;
and step 9: grouting the inserted rods through a grouting machine, and sealing grouting ports by using rubber plugs when grouting ports on one inserted rod start to discharge grout until all grouting ports are sealed;
step 10: and pouring the superposed beams and filling the joints of the whole floor with concrete.
By adopting the technical scheme, during construction, when the prefabricated lower layer plate is hung on the superposed beam, the fixed column is controlled to be inserted on the supporting rod, so that the stability of the lower layer plate is ensured to a certain extent, the lower layer plate does not need to be additionally supported, and then sundries on the lower layer plate are cleaned, so that when the upper layer plate is buckled on the lower layer plate, the situation that sundries are left on the lower layer plate to influence the combination and assembly of the upper layer plate and the lower layer plate is avoided; when the upper plate is buckled on the lower plate, the inserted link is controlled to penetrate through the upper plate and keep the flatness of the upper plate, then concrete is poured into the inserted link through a grouting machine, when grout outlet on a certain inserted link begins to discharge grout, the grout outlet is sealed by a rubber plug, when all grout outlets are sealed, the cavities of the lower plate and the upper plate are filled with the concrete, so that the concrete is poured into the cavities, the grout outlet is blocked by a piston, rainwater can be prevented from entering the cavities to a certain extent when raining, thereby avoiding concrete loss, a reinforcement cage can enhance the connection stability between the concrete and the floor slab, meanwhile, the upper plate can be normally constructed, the concrete does not need to be solidified and maintained, thereby the construction progress can be accelerated, and the grouting machine has smaller volume when the upper plate and the lower plate are poured with the concrete, the floor slab is convenient to hoist on a floor, the floor slab is divided into an upper plate and a lower plate, and cavities are formed in the upper plate and the lower plate, so that the weight of the floor slab can be reduced, and the hoisting and the transportation are convenient; after grouting, the upper layer plate and the lower layer plate are connected by the inserted rods, so that the connection stability between the upper layer plate and the lower layer plate is enhanced to a certain extent; the flatness of the floor slab is guaranteed by the arrangement of the step 9, and the connection stability of the supporting rods and the superposed beams is guaranteed by the arrangement of the step 10.
The present invention in a preferred example may be further configured to: the rubber plug is provided with an air hole.
By adopting the technical scheme, the solidification of the concrete is accelerated.
The present invention in a preferred example may be further configured to: in the step 1, a plurality of first penetration holes are formed in the opposite surfaces of the upper plate and the lower plate.
Through adopting above-mentioned technical scheme, during the slip casting from the inserted bar, the concrete flows to between upper plate and the lower floor plate from a penetration hole to realize sealed between upper plate and the lower floor plate, strengthen the connection stability of upper plate and lower floor plate simultaneously.
The present invention in a preferred example may be further configured to: in step 1, the supporting rod is arranged in a hollow mode, a plurality of second penetrating holes are formed in the side wall of the supporting rod in the lower layer plate, and in step 7, after the upper layer plate and the lower layer plate are buckled, a gap is reserved between the upper layer plate and the lower layer plate.
Through adopting above-mentioned technical scheme, reserve the gap and can supply the concrete to hold between upper plate and lower floor's board to concrete thickness between upper plate and the lower floor's board can be controlled to size through the gap, in order to adapt to stability requirement, and set up infiltration hole two on the bracing piece lateral wall, then when the slip casting in the inserted bar, the concrete can follow in the infiltration hole two flows to the bracing piece, thereby can strengthen the rigidity intensity of bracing piece, the reinforcing is to the bearing strength of floor.
The present invention in a preferred example may be further configured to: and (7) before the upper plate is hoisted in the step 7, gluing a circle of sealing gasket on the periphery of the lower surface of the upper plate.
Through adopting above-mentioned technical scheme, can prevent that the concrete overflow in the gap from coming out, when hoist and mount upper plate, can play certain cushioning effect simultaneously.
The present invention in a preferred example may be further configured to: in step 4, after the lower plate is hoisted, penetrating steel strands in the supporting rods, respectively fixedly connecting two ends of the steel strands to the two opposite superposed beams, and tightening the steel strands through the tighteners.
Through adopting above-mentioned technical scheme, steel strand wires both ends fixed connection is on relative superposed beams, and tightens steel strand wires through the turn-buckle, and during the slip casting, the concrete can enter into the bracing piece through infiltration hole two to the concrete solidifies on steel strand wires, has strengthened the connection stability of steel strand wires and bracing piece, has guaranteed the rigidity of steel strand wires simultaneously, thereby has guaranteed the support intensity of bracing piece, realizes large-span installation floor.
The present invention in a preferred example may be further configured to: in the step 1, when the superposed beam is prefabricated, a steel pipe for the steel strand to pass through is pre-buried on the superposed beam, after the steel strand is penetrated, a cushion block is inserted into one end of the steel pipe, which is far away from the floor slab, and an anchorage device is installed on the cushion block to fix the steel strand.
Through adopting above-mentioned technical scheme, the steel strand wires are installed and fixed to a certain extent just.
The present invention in a preferred example may be further configured to: the steel pipe is communicated with and fixedly connected with a grouting pipe.
Through adopting above-mentioned technical scheme, can fill the steel pipe through the slip casting pipe with the slip casting machine, guarantee the intensity of coincide roof beam.
In summary, the invention includes at least one of the following beneficial technical effects:
1. according to the invention, the support rods are built on the superposed beams and are filled with concrete, the steel strands are penetrated in the support rods, and two ends of each steel strand are respectively and fixedly connected to the two opposite superposed beams, so that a large-span installation floor is realized, a floor supporting device is omitted or avoided, and the construction efficiency is improved;
2. according to the invention, the upper plate and the lower plate are buckled, and the cavity of the upper plate and the cavity of the lower plate are filled up through the inserted rods, so that the strength of the floor slab is ensured, the weight of the floor slab is reduced when the floor slab is hoisted, and the supporting rods are filled up through the grouting of the inserted rods, so that the rigidity of the supporting rods is enhanced.
Drawings
Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.
Fig. 2 is an exploded view of an embodiment of the present invention.
Fig. 3 is a cross-sectional view of an embodiment of the present invention.
Fig. 4 is an enlarged schematic view of the region a in fig. 2.
In the figure, 1, a pillar; 2. a composite beam; 3. a floor slab; 4. an upper plate; 5. a lower layer plate; 6. a rib; 7. a groove; 8. a gap; 9. a first penetration hole; 10. a cavity; 11. a reinforcement cage; 12. a support bar; 13. a second penetration hole; 14. a notch; 15. fixing a column; 16. inserting a rod; 17. a slurry outlet; 18. grouting ports; 19. a hoisting ring; 20. steel strand wires; 21. perforating; 22. a steel pipe; 23. cushion blocks; 24. an anchorage device; 25. a grouting pipe; 26. a gasket; 27. a rubber plug; 28. and (4) air holes.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, the invention discloses a full-prefabricated sawtooth floor slab support-free construction method based on a BIM technology superposed beam, which comprises the following steps:
step 1: the prefabricated composite beam 2 and the processed floor 3 are characterized in that the floor 3 comprises an upper layer plate 4 and a lower layer plate 5 which are mutually meshed and connected, and the floor 3 is a steel plate.
Referring to fig. 2 and 3, the lower surface of the upper plate 4 is fixedly connected with a plurality of ribs 6, the ribs 6 are in an inverted T shape, the plurality of ribs 6 are arranged at equal intervals along the width direction of the upper plate 4, the upper surface of the lower plate 5 is provided with grooves 7 for the ribs 6 to be clamped in, the height of each rib 6 is slightly larger than the depth of each groove 7, namely, when the ribs 6 are clamped in the grooves 7, gaps 8 are formed between the upper plate 4 and the lower plate 5; a plurality of infiltration holes 9 are all seted up to the relative one side of upper plate 4 and lower floor's board 5, and a plurality of infiltration holes 9 evenly distributed is at upper plate 4 lower surface and lower floor's board 5 upper surface.
A notch 14 is reserved on the superposed beam 2, two fixing columns 15 for inserting the supporting rod 12 are vertically embedded in the bottom surface of the notch 14, and the number of the fixing columns 15 is two.
An inserting rod 16 is vertically and fixedly connected to the inner bottom surface of the supporting rod 12, one end, far away from the supporting rod 12, of the inserting rod 16 is used for being inserted into and penetrating out of the upper layer plate 4, the inserting rod 16 is arranged in a hollow mode, a plurality of grout outlet holes 17 are formed in the side wall of the inserting rod 16, and a grout inlet 18 is formed in one surface, far away from the supporting rod 12, of the inserting rod 16; when the upper plate 4 and the lower plate 5 are engaged and connected, the upper surface of the inserted rod 16 is flush with the upper surface of the upper plate 4, and the grout outlet 17 is distributed in the cavity 10 of the upper plate 4 and the support rod 12.
Hanging rings 19 are embedded in the upper surfaces of the upper plate 4 and the lower plate 5;
step 2: transporting the superposed beam 2 and the floor slab 3 to a construction site;
and step 3: hoisting the superposed beam 2, installing the superposed beam 2 on the foundation column 1, and pouring concrete on a connecting node of the foundation column 1 and the superposed beam 2 to ensure the stability of the connection of the foundation column 1 and the superposed beam 2;
referring to fig. 2 and 4, step 4: hoisting a lower layer plate 5 on a superposed beam 2, controlling fixing columns 15 on the superposed beam 2 to be inserted into supporting rods 12, after hoisting of the lower layer plate 5 is finished, penetrating multiple steel strands 20 into the supporting rods 12, penetrating two ends of each steel strand 20 through two opposite superposed beams 2 respectively, forming through holes 21 in the two opposite superposed beams 2, pre-embedding steel pipes 22 in the through holes 21, penetrating the steel strands 20 through the steel pipes 22, tightening the steel strands 20 through tighteners after the steel strands 20 penetrate through the steel pipes 22, inserting cushion blocks 23 into one ends, far away from a floor slab 3, of the steel pipes 22, and installing anchorage devices 24 on the cushion blocks 23 to fix the steel strands 20; the steel pipe 22 is communicated with and fixedly connected with a grouting pipe 25, the grouting pipe 25 is a hollow pipe, the grouting pipe 25 is vertically arranged, and the grouting pipe 25 extends to the bottom of the superposed beam 2.
And 5: cutting off the hanging rings 19 on the lower plate 5 by a cutting machine to ensure the flatness of the lower plate 5;
step 6: cleaning impurities on the upper surface of the lower plate 5 and in the groove 7 to ensure that no impurities exist on the lower plate 5;
referring to fig. 2 and 3, step 7: a circle of sealing gasket 26 is adhered to the periphery of the lower surface of the upper plate 4, the height of the sealing gasket 26 is slightly higher than that of the gap 8, namely, when the rib 6 is clamped in the groove 7, the sealing gasket 26 deforms; then, the upper plate 4 is hoisted and buckled on the lower plate 5, and the inserting rod 16 is controlled to be inserted and penetrate out of the upper plate 4;
and 8: cutting off the lifting rings 19 on the upper plate 4 by a cutting machine to ensure the smoothness of the upper surface of the upper plate 4, cleaning the upper plate 4, and removing impurities on the upper surface of the upper plate 4;
and step 9: grouting the inserted rods 16 through a grouting machine, sealing the grouting ports 18 by using rubber plugs 27 when grouting ports 18 on one inserted rod 16 start to discharge grout until all the grouting ports 18 are sealed, and forming air holes 28 on the rubber plugs 27 in order to accelerate concrete solidification in the cavity 10;
step 10: and pouring the superposed beams 2 and filling the gap of the whole floor by using concrete so as to ensure the flatness of the floor surface.
The specific working process is as follows: after the superposed beams 2 are hoisted, the floor slab 3 is hoisted, when the floor slab 3 is hoisted, the support rods 12 on the lower layer plate 5 are built in the gaps 14 on the superposed beams 2, then the steel strands 20 penetrate through the support rods 12, then the two ends of the steel strands 20 are respectively and fixedly connected to the two opposite superposed beams 2, then a grouting machine is used for grouting steel pipes 22 through grouting pipes 25, then the upper surface of the lower layer plate 5 is subjected to leveling and cleaning treatment, the upper layer plate 4 is hoisted and buckled on the lower layer plate 5, the inserted rods 16 are controlled to penetrate through the upper layer plate 4, then the inserted rods 16 are grouted by the grouting machine, a part of concrete grout flows into the support rods 12 through the grout outlet 17 and flows into the cavity 10 of the lower layer plate 5 through the two permeation holes 13, the cavity 10 and the support rods 12 of the lower layer plate 5 are filled, a part of the concrete grout flows into the cavity 10 of the upper layer plate 4 through the grout outlet 17 and flows into the gaps 8 between the lower layer plate 5 and the upper layer 4 through the permeation through the, when grout begins to flow out from the grout inlet 18 on one plug rod 16, the grout outlet is sealed by the rubber plug 27 until all grout outlets 18 are sealed, and then the upper surface of the upper plate 4 is subjected to flat cleaning treatment.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. A full-prefabricated sawtooth floor slab support-free construction method based on a BIM technology superposed beam is characterized in that: the method comprises the following steps:
step 1: prefabricating a superposed beam (2) and processing a floor slab (3), wherein the floor slab (3) comprises an upper layer plate (4) and a lower layer plate (5) which are mutually meshed and connected, the lower surface of the upper layer plate (4) is fixedly connected with a convex edge (6), the convex edge (6) is arranged in a plurality of numbers, the upper surface of the lower layer plate (5) is provided with a groove (7) for the convex edge (6) to be clamped in, the upper layer plate (4) and the lower layer plate (5) are both provided with a cavity (10), a reinforcement cage (11) is laid in the cavity (10), the lower layer plate (5) is penetrated with a plurality of supporting rods (12) along the length direction of the groove (7), a fixing column (15) for inserting the supporting rod (12) is vertically and pre-embedded in the superposed beam (2), an inserting rod (16) is vertically and fixedly connected to the lower layer plate (5), one end of the inserting rod (16) is inserted into the cavity (10) of, the other end of the inserted rod (16) is used for being inserted into and penetrating out of the upper plate (4), the inserted rod (16) is arranged in a hollow mode, a plurality of grout outlet holes (17) are formed in the side wall of the inserted rod (16), a grout filling port (18) is formed in one side, far away from the lower plate (5), of the inserted rod (16), and hanging rings (19) are embedded in the upper surfaces of the upper plate (4) and the lower plate (5);
step 2: transporting the superposed beam (2) and the floor slab (3) to a construction site;
and step 3: hoisting the superposed beam (2), installing the superposed beam (2) on the foundation column (1), and pouring concrete on a connecting node of the foundation column (1) and the superposed beam (2);
and 4, step 4: the lower plate (5) is hung on the superposed beam (2), and a fixing column (15) on the superposed beam (2) is controlled to be inserted into the supporting rod (12);
and 5: cutting off the hanging ring (19) on the lower plate (5) by a cutting machine;
step 6: cleaning sundries on the upper surface of the lower laminate (5);
and 7: hoisting and buckling the upper plate (4) on the lower plate (5), and controlling the insertion rod (16) to be inserted into and penetrate out of the upper plate (4);
and 8: cutting off the hanging ring (19) on the upper plate (4) by a cutting machine;
and step 9: grouting the inserted rods (16) by a grouting machine, and sealing the grouting ports (18) by rubber plugs (27) when grouting ports (18) on one inserted rod (16) start to discharge grout until all the grouting ports (18) are sealed;
step 10: and (3) pouring the superposed beams (2) and filling the whole floor with concrete.
2. The support-free construction method of the full-prefabricated sawtooth floor slab based on the BIM technology superposed beams is characterized in that: the rubber plug (27) is provided with an air hole (28).
3. The support-free construction method of the full-prefabricated sawtooth floor slab based on the BIM technology superposed beams is characterized in that: in the step 1, a plurality of first penetration holes (9) are formed in the opposite surfaces of the upper plate (4) and the lower plate (5).
4. The support-free construction method of the full-prefabricated sawtooth floor slab based on the BIM technology superposed beams is characterized in that: in step 1, the supporting rod (12) is arranged in a hollow mode, a plurality of second penetration holes (13) are formed in the side wall of the supporting rod (12) in the lower layer plate (5), and in step 7, after the upper layer plate (4) and the lower layer plate (5) are buckled, a gap (8) is reserved between the upper layer plate (4) and the lower layer plate (5).
5. The support-free construction method of the full-prefabricated sawtooth floor slab based on the BIM technology superposed beams is characterized in that: before the upper plate (4) is hoisted in the step 7, a circle of sealing gasket (26) is adhered to the periphery of the lower surface of the upper plate (4).
6. The support-free construction method of the full-prefabricated sawtooth floor slab based on the BIM technology superposed beams is characterized in that: in the step 4, after the lower layer plate (5) is hoisted, the steel strand (20) penetrates through the support rod (12), two ends of the steel strand (20) are respectively and fixedly connected to the two opposite superposed beams (2), and the steel strand (20) is tightened through the tightener.
7. The support-free construction method of the full-prefabricated sawtooth floor slab based on the BIM technology superposed beams is characterized in that: in the step 1, when the composite beam (2) is prefabricated, a steel pipe (22) for the steel strand (20) to penetrate through is pre-buried on the composite beam (2), after the steel strand (20) penetrates through, a cushion block (23) is inserted into one end, far away from the floor (3), of the steel pipe (22), and an anchorage device (24) is installed on the cushion block (23) to fix the steel strand (20).
8. The bracing-free construction method for the fully-prefabricated sawtooth floor slab based on the BIM technology superposed beams as claimed in claim 7, wherein: the steel pipe (22) is communicated with and fixedly connected with a grouting pipe (25).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010707030.1A CN111877627B (en) | 2020-07-21 | 2020-07-21 | Full-prefabricated sawtooth floor slab support-free construction method based on BIM technology superposed beams |
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| CN202010707030.1A CN111877627B (en) | 2020-07-21 | 2020-07-21 | Full-prefabricated sawtooth floor slab support-free construction method based on BIM technology superposed beams |
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| CN111877627B CN111877627B (en) | 2021-06-29 |
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| CN103140639A (en) * | 2010-05-06 | 2013-06-05 | 联合建筑有限公司 | A building structure |
| CN102383513A (en) * | 2011-09-09 | 2012-03-21 | 邹剑强 | Concrete reinforced profiled steel sheet, composite slab and method for constructing composite slab |
| JP2016069844A (en) * | 2014-09-29 | 2016-05-09 | 大和ハウス工業株式会社 | Concrete floor structure |
| CN104612300A (en) * | 2015-01-29 | 2015-05-13 | 济南轨道交通集团有限公司 | Hollow composite floor slab and construction method thereof |
| CN104790576A (en) * | 2015-04-26 | 2015-07-22 | 吴方伯 | Composite floor slab and construction method thereof |
| CN107605085A (en) * | 2017-09-15 | 2018-01-19 | 广东工业大学 | A kind of assembled composite deck slabs |
| WO2020107129A1 (en) * | 2018-11-30 | 2020-06-04 | Infina Technologies Inc. | Semi-prefabricated timber-concrete composite slab |
| CN109707091A (en) * | 2019-01-30 | 2019-05-03 | 北京工业大学 | A kind of assembled stealth beam laminated floor slab for the pipeline separation installed from up to down |
| CN110056111A (en) * | 2019-04-18 | 2019-07-26 | 江苏广兴集团建筑装配科技有限公司 | A kind of superimposed sheet of stable connection |
| CN111058562A (en) * | 2019-12-31 | 2020-04-24 | 浙江工业大学 | Laminated floor slab structure and construction process thereof |
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