CN113309282A - Hollow floor slab construction process - Google Patents
Hollow floor slab construction process Download PDFInfo
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- CN113309282A CN113309282A CN202110655395.9A CN202110655395A CN113309282A CN 113309282 A CN113309282 A CN 113309282A CN 202110655395 A CN202110655395 A CN 202110655395A CN 113309282 A CN113309282 A CN 113309282A
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- 238000010276 construction Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000007787 solid Substances 0.000 claims abstract description 79
- 239000002131 composite material Substances 0.000 claims abstract description 73
- 239000004567 concrete Substances 0.000 claims abstract description 56
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 44
- 239000010959 steel Substances 0.000 claims abstract description 44
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000009415 formwork Methods 0.000 claims abstract description 29
- 238000007667 floating Methods 0.000 claims abstract description 27
- 229910052742 iron Inorganic materials 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 5
- 238000003825 pressing Methods 0.000 claims abstract description 5
- 230000005611 electricity Effects 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 47
- 239000006260 foam Substances 0.000 claims description 14
- 239000002023 wood Substances 0.000 claims description 14
- 239000004568 cement Substances 0.000 claims description 9
- 239000004744 fabric Substances 0.000 claims description 7
- 239000011241 protective layer Substances 0.000 claims description 7
- 239000004570 mortar (masonry) Substances 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 12
- 238000006073 displacement reaction Methods 0.000 abstract description 5
- 238000005336 cracking Methods 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 description 7
- 239000000945 filler Substances 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 3
- 238000005034 decoration Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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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
- E04B5/326—Floor structures wholly cast in situ with or without form units or reinforcements with hollow filling elements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a hollow floor slab construction process, which comprises the following steps: supporting the installation template through a formwork supporting structure; binding a lower layer of steel bar, and supporting the steel bar on the template through a first cushion block; water and electricity are pre-buried; placing an anti floating point; installing a light composite solid pipe; anti-floating steel bars are arranged in parallel at two ends of each row of the light composite solid pipes, the anti-floating steel bars are pulled by iron wires at two ends of each light composite solid pipe and fixed on the steel bars at the lower layer, and the iron wires are tensioned; binding upper-layer steel bars and pressing the upper-layer steel bars on the light composite solid pipe; and (6) pouring concrete. And curing the concrete and removing the formwork. Has the advantages that: the floor system is suitable for buildings with various spans and loads, is particularly suitable for multi-layer and high-rise buildings with large spans, large loads and large spaces, can effectively improve the floating resistance and displacement resistance of the filling material, improves the wrapping property of the filling material and concrete, avoids shrinkage cracking, and improves the construction quality.
Description
Technical Field
The invention relates to the field of building construction, in particular to a hollow floor slab construction process.
Background
The technology of cast-in-place concrete hollow floor slabs has been developed for decades at home and abroad. The research on the cast-in-situ hollow floor slab from the end of the 80 th 20 th century in China obtains a series of research results, and researches on the stress characteristic, the structure and the structure of the cast-in-situ hollow floor slab with the embedded tubular internal mold are carried out. Traditional beam slab structure concrete volume is big, synthesize the cost high, and filler material is poor with concrete parcel nature, the shrinkage cracking appears easily to filler material takes place come-up and displacement easily, can not guarantee the pouring quality of concrete.
Disclosure of Invention
The invention aims to solve the problems and provide a hollow floor slab construction process.
The invention realizes the purpose through the following technical scheme:
a hollow floor slab construction process comprises the following steps:
(1) supporting the installation template through a formwork supporting structure, and arranging embedded parts and holes;
(2) binding a lower layer of steel bar, and supporting the steel bar on the template through a first cushion block;
(3) water and electricity are pre-buried, pre-buried pipelines are arranged along the ribs, and small-diameter pipelines with the outer diameter less than phi 16 are laid on the lower portion of the filling pipe and do not exceed one layer; the large-diameter pipelines with the outer diameter less than phi 16 are arranged in the same span;
(4) placing an anti-floating point, binding and fixing a lower layer of steel bars on a formwork upper structure below a formwork by adopting iron wires to penetrate through the formwork, and tensioning the iron wires; the anti-floating points are arranged in a plum blossom shape, and the distance between every two adjacent anti-floating points is 1 meter;
(5) installing a light composite solid pipe;
placing the light composite solid pipe on a second cushion block on the lower-layer steel bar, wherein the height of the second cushion block is calculated according to the formula: h = H-e-2 a;
wherein: h, filling the distance from the bottom of the pipe to the template;
e, the thickness of the floor slab protective layer is 15 mm;
a, the diameter of the lower layer steel bar;
(6) anti-floating steel bars are arranged in parallel at two ends of each row of the light composite solid pipes, the anti-floating steel bars are pulled by iron wires at two ends of each light composite solid pipe and fixed on the steel bars at the lower layer, and the iron wires are tensioned;
(7) binding upper-layer steel bars and pressing the upper-layer steel bars on the light composite solid pipe;
(8) pouring concrete;
1) watering the wet template and the light composite solid pipe;
2) screening aggregates with the particle size of 1-2cm, distributing and vibrating synchronously, uniformly discharging on two sides of the light composite solid pipe during concrete distribution, and vibrating relatively to fill the bottom of the light composite solid pipe fully;
3) during construction, firstly pouring concrete at the column part, and then pouring concrete at the beam and the plate part, wherein the concrete with the thickness of each plate is poured in two steps; concrete is poured to 2/3 height on the rib part of the light composite solid pipe of each plate, and the concrete is vibrated by using an insertion vibrating rod with the diameter of 3cm, and the insertion distance of the vibrating rod is 300 mm; after all rib concrete of the slab is poured and vibrated compactly, the concrete with the residual slab thickness can be poured to a designed elevation, and the rib concrete is vibrated for two times;
(9) and curing the concrete and removing the formwork.
As a preferable technical scheme, the formwork structure comprises a formwork support frame and square wood, the square wood is provided with two rows, the length directions of the two rows of square wood are vertical, the upper row of square wood and the lower row of square wood are connected in a bundling mode through iron wires, and the lower row of square wood is fixedly connected with the formwork support frame.
As an important technical scheme, the light composite solid tube comprises a foam rod and mesh cloth, wherein the foam rod is square, the positions of all ridges are in arc transition, the mesh cloth wraps the outer layer of the foam rod, and the outer layer of the foam rod is wrapped with a high-strength cement gel layer.
Further, the thickness of the cement gel layer is 5 mm.
Preferably, in the step (2), the first cushion block is a mortar cushion block, the distance between two adjacent mortar cushion blocks is 1m, and the thickness of the first cushion block is equal to that of the floor slab protective layer.
Preferably, in the step (7), a third cushion block is additionally arranged between the upper layer of steel bars and the lightweight composite solid pipe, and the center of the lightweight composite solid pipe is pressed by the third cushion block.
Preferably, the distance between the light composite solid pipe close to the beam and the wall and the distance between the light composite solid pipe and the beam and the wall are not less than 200 mm; when the light composite solid tubes are installed, the same row of light composite solid tubes are kept straight, and the distance between the two rows of light composite solid tubes is 100 mm.
Has the advantages that: the floor system is suitable for buildings with various spans and loads, and is particularly suitable for multi-storey and high-rise buildings with large spans, large loads and large spaces. The construction of the hollow floor slab has the advantages that the self weight of the floor slab is reduced, compared with a common solid flat plate with the same span, the self weight can be reduced by 32% -55%, the load of members such as walls, columns, foundations and the like supporting the floor slab is correspondingly reduced, the interface size and the reinforcing bars of vertical members can be reduced, and the cost of the vertical members is saved. Meanwhile, the application of the light composite solid pipe in the construction of the cast-in-place concrete hollow floor slab reduces the heat transfer, obviously improves the heat preservation and heat insulation performance of the building, has obvious energy-saving effect, saves a large amount of concrete materials, saves energy and is environment-friendly; because the self weight of the floor slab is reduced, the rigidity is improved, conditions are provided for the popularization of a large-span horizontal structure system, and the space utilization rate of the structure is improved.
Moreover, each construction process is improved, the floating resistance and the displacement resistance of the filling material can be effectively improved, the wrapping performance of the filling material and concrete is improved, shrinkage cracking does not occur, and the construction quality is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a view of the construction of a hollow floor slab according to the present invention (the spacer is not shown);
FIG. 2 is a structural view of the lightweight composite solid tube of the present invention;
FIG. 3 is a structural diagram of the lightweight composite solid tube according to the present invention.
The reference numerals are explained below:
1. a formwork structure; 101. square wood; 102. a mould frame is supported; 2. a template; 3. lower layer steel bar; 4. a lightweight composite solid tube; 401. a foam bar; 402. mesh cloth; 403. a cement gel layer; 5. anti-floating steel bars; 6. upper layer steel bars; 7. anti-floating point.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Referring to fig. 1 to 3, the present invention provides a hollow floor slab construction process, including the following steps:
(1) supporting the installation template 2 through the formwork supporting structure 1, and arranging embedded parts and holes; the template 2 and the formwork supporting structure 1 have enough strength, rigidity and stability, embedded parts and holes fixed on the template 2 cannot be omitted, and the installation must be firm and the positions are accurate.
(2) Binding a lower layer of steel bars 3, and supporting the lower layer of steel bars on the template 2 through a first cushion block; the first cushion block is a mortar cushion block, the distance between two adjacent mortar cushion blocks is 1m, the thickness of the first cushion block is equal to that of the floor slab protective layer, and the thickness of the protective layer is 15 mm.
(3) Water and electricity are pre-buried, pre-buried pipelines are arranged along the ribs, and small-diameter pipelines with the outer diameter less than phi 16 are laid on the lower portion of the filling pipe and do not exceed one layer; the large-diameter pipelines with the outer diameter less than phi 16 are arranged in the same span; the reserved water wire pipe box at the bottom of the light composite solid pipe 4 is embedded according to the paying-off position, the embedded pipeline box is arranged at the position between ribs, the connecting node of the embedded pipeline box is arranged at the rib position between hollow floor slabs, and a sleeve is embedded in the vertical floor slab penetrating pipeline. The construction process can reduce weakening of the end face of the floor system.
(4) Placing an anti-floating point 7, binding and fixing the lower layer of steel bars 3 on a supporting formwork upper structure below the formwork 2 by adopting iron wires to penetrate through the formwork 2, and tensioning the iron wires; the anti-floating points 7 are arranged in a plum blossom shape, and the distance between two adjacent anti-floating points 7 is 1 meter;
(5) installing a light composite solid pipe 4; the distance between the light composite solid pipe 4 close to the beam and the wall and the beam and the wall is not less than 200 mm; when the light composite solid tubes 4 are installed, the same row keeps straight, and the distance between the two rows of light composite solid tubes 4 is 100 mm.
Placing the light composite solid pipe 4 on a second cushion block on the lower-layer steel bar 3, wherein the height of the second cushion block is calculated according to the formula: h = H-e-2 a;
wherein: h, the distance from the bottom of the filling pipe to the template 2;
e, the thickness of the floor slab protective layer is 15 mm;
a, the diameter of the lower layer steel bar 3;
(6) anti-floating steel bars 5 are arranged in parallel at two ends of each row close to the light composite solid pipe 4, the anti-floating steel bars 5 are pulled by iron wires at two ends of each light composite solid pipe 4 and fixed on the lower layer steel bar 3, and the iron wires are tensioned;
(7) binding an upper layer of steel bars 6 and pressing the upper layer of steel bars on the light composite solid pipe 4;
by adopting the construction processes from (4) to (7), the left-right displacement and floating of the light composite solid pipe 4 can be effectively resisted, and the jacking of the upper layer steel bar 6 of the floor slab is avoided.
(8) Pouring concrete;
1) watering the wet template 2 and the light composite solid pipe 4; enough water content can be guaranteed, so that the cement gel layer 403 on the surface layer of the light composite solid pipe 4 is better combined with concrete, shrinkage cracks are avoided, and the construction quality of the concrete hollow floor slab is guaranteed.
2) Screening aggregates with the particle size of 1-2cm, synchronously distributing and vibrating, uniformly discharging materials on two sides of the light composite solid tube 4 during concrete distribution, vibrating relatively to fill the bottom of the light composite solid tube 4, avoiding excessive vibration and avoiding floating of the light composite solid tube 4 without storing air bags and air bubbles.
3) During construction, firstly pouring concrete at the column part, and then pouring concrete at the beam and the plate part, wherein the concrete with the thickness of each plate is poured in two steps; concrete is poured to 2/3 height on the rib part of the light composite solid pipe 4 of each plate, an inserted vibrating rod with the diameter of 3cm is used for vibrating the concrete, the inserting distance of the vibrating rod is 300mm, air under the light composite solid pipe 4 can be completely removed, and the concrete under the light composite solid pipe 4 is vibrated and compacted; after all rib concrete of the slab is compactly poured and vibrated, the concrete with the residual slab thickness can be poured to the designed elevation, and the rib concrete is vibrated twice.
By adopting the pouring method, the particle size of the concrete coarse bones (12 stones) is reduced and the concrete is poured in layers when the concrete is poured, the concrete is poured to the two thirds position of the height of the material of the light composite solid pipe 4 for the first time so as to ensure that the concrete between the lower part of the light composite solid pipe 4 and the light composite solid pipe 4 is vibrated compactly, then the surface layer concrete is poured, the filling material is sprayed with water and moistened before the pouring, the sufficient water content can be ensured, the cement gel layer 403 on the surface layer of the light composite solid pipe 4 is better combined with the concrete, the occurrence of shrinkage cracks is avoided, and the construction quality of the concrete hollow floor slab is ensured.
(9) And curing the concrete and removing the formwork.
As a preferable technical scheme of the scheme, the formwork structure 1 comprises a formwork support 102 and square timber 101, the square timber 101 is provided with two rows, the length directions of the two rows of square timber 101 are vertical, the upper row of square timber 101 and the lower row of square timber 101 are connected in a bundling manner through iron wires, and the lower row of square timber 101 is fixedly connected with the formwork support 102.
As an important technical scheme of the scheme, the lightweight composite solid tube 4 comprises a foam rod 401 and a mesh fabric 402, wherein the foam rod 401 is square, the positions of ridges are in arc transition, the mesh fabric 402 wraps the outer layer of the foam rod 401, the outer layer of the foam rod 401 is wrapped with a 5mm high-strength cement gel layer 403, and the cement gel layer 403 can be better combined with concrete to avoid shrinkage cracks; moreover, the position circular arc transition of each stupefied of this application light composite solid pipe 4, easy jolt when vibrating to the air of light composite solid pipe 4 below is discharged along circular arc department easily when vibrating. This compound solid tube of light 4 had both guaranteed filler material's light, and adopt 16# iron wire to tie floor lower floor reinforcing bar 3 with square timber 101 or formwork support 102 of 2 lower parts of template in this application, the tie interval is 1m, anti-floating point 7's interval promptly, and become plum blossom form setting, arrange 2 anti-floating reinforcing bar 5 of diameter 12mm at the upper portion both ends of compound solid tube of light 4 simultaneously, tie anti-floating reinforcing bar 5 and compound solid tube of light 4 in the lump on lower floor reinforcing bar 3, the effectual problem of solving filler material come-up and displacement like this, before 3 ligatures of lower floor reinforcing bar, the control line of playing on template 2, after 3 ligatures of lower floor reinforcing bar are consolidated and are accomplished, arrange according to the design interval, consolidate the filler tube.
Preferably, in the step (7), a third cushion block is additionally arranged between the upper layer of steel bars 6 and the light composite solid pipe 4, and the center of the light composite solid pipe 4 is pressed by the third cushion block, so that the light composite solid pipe 4 can be further pressed, the movement is avoided, and the thickness of the concrete on the upper part of the light composite solid pipe 4 can be ensured.
In conclusion, the hollow floor slab construction process has the following characteristics:
1. light weight, high rigidity and good earthquake resistance. The floor system is suitable for buildings with various spans and loads, and is particularly suitable for multi-storey and high-rise buildings with large spans, large loads and large spaces. Compared with a common solid flat plate with the same span, the self weight can be reduced by 32 to 55 percent. Meanwhile, the floor slab system has the advantages of high rigidity, small deformation and good seismic performance.
2. The space arrangement is flexible, and the clearance height is increased. The floor slab system has large span, the partition walls can be arranged randomly, the space separation is flexible, and the inconvenience brought to decoration by the traditional house is avoided. At the same time. And the potential safety hazard brought to the structure due to the fact that the wall is knocked down during decoration is also avoided. Because the floor is completely flat and has no uneven primary and secondary beams, the room does not need a suspended ceiling, thereby improving the clearance height, and saving the cost of secondary decoration of the suspended ceiling and the cost of replacing the suspended ceiling.
3. Good heat preservation, heat insulation and sound insulation performance. The light composite solid pipe 4 structure of the floor slab reduces heat transfer, obviously improves the heat preservation and insulation performance of the building, and has obvious energy-saving effect. Compared with a solid plate, the floor slab has the advantages that the light composite solid pipe 4 made of the foam rod 401 is filled in the inner die, so that noise transmission between floors is greatly reduced, noise interference between an upper floor and a lower floor is overcome, and the floor slab has a good sound insulation effect.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (7)
1. A hollow floor slab construction process is characterized by comprising the following steps:
(1) supporting the installation template through a formwork supporting structure, and arranging embedded parts and holes;
(2) binding a lower layer of steel bar, and supporting the steel bar on the template through a first cushion block;
(3) water and electricity are pre-buried, pre-buried pipelines are arranged along the ribs, and small-diameter pipelines with the outer diameter less than phi 16 are laid on the lower portion of the filling pipe and do not exceed one layer; the large-diameter pipelines with the outer diameter less than phi 16 are arranged in the same span;
(4) placing an anti-floating point, binding and fixing a lower layer of steel bars on a formwork upper structure below a formwork by adopting iron wires to penetrate through the formwork, and tensioning the iron wires; the anti-floating points are arranged in a plum blossom shape, and the distance between every two adjacent anti-floating points is 1 meter;
(5) installing a light composite solid pipe;
placing the light composite solid pipe on a second cushion block on the lower-layer steel bar, wherein the height of the second cushion block is calculated according to the formula: h = H-e-2 a;
wherein: h, filling the distance from the bottom of the pipe to the template;
e, the thickness of the floor slab protective layer is 15 mm;
a, the diameter of the lower layer steel bar;
(6) anti-floating steel bars are arranged in parallel at two ends of each row of the light composite solid pipes, the anti-floating steel bars are pulled by iron wires at two ends of each light composite solid pipe and fixed on the steel bars at the lower layer, and the iron wires are tensioned;
(7) binding upper-layer steel bars and pressing the upper-layer steel bars on the light composite solid pipe;
(8) pouring concrete;
1) watering the wet template and the light composite solid pipe;
2) screening aggregates with the particle size of 1-2cm, distributing and vibrating synchronously, uniformly discharging on two sides of the light composite solid pipe during concrete distribution, and vibrating relatively to fill the bottom of the light composite solid pipe fully;
3) during construction, firstly pouring concrete at the column part, and then pouring concrete at the beam and the plate part, wherein the concrete with the thickness of each plate is poured in two steps; concrete is poured to 2/3 height on the rib part of the light composite solid pipe of each plate, and the concrete is vibrated by using an insertion vibrating rod with the diameter of 3cm, and the insertion distance of the vibrating rod is 300 mm; after all rib concrete of the slab is poured and vibrated compactly, the concrete with the residual slab thickness can be poured to a designed elevation, and the rib concrete is vibrated for two times;
(9) and curing the concrete and removing the formwork.
2. The hollow floor slab construction process according to claim 1, wherein: the formwork structure comprises a formwork support frame and square wood, wherein the square wood is provided with two rows of square wood, the length directions of the two rows of square wood are vertical, the upper row of square wood and the lower row of square wood are tied up and connected through iron wires, and the lower row of square wood is fixedly connected with the formwork support frame.
3. The hollow floor slab construction process according to claim 1, wherein: the light composite solid pipe comprises a foam rod and mesh cloth, wherein the foam rod is square, the arc transition is carried out at the position of each edge, the mesh cloth wraps the outer layer of the foam rod, and the outer layer of the foam rod is wrapped with a high-strength cement gel layer.
4. The hollow floor slab construction process according to claim 4, wherein: the thickness of the cement gel layer is 5 mm.
5. The hollow floor slab construction process according to claim 1, wherein: in the step (2), the first cushion blocks are mortar cushion blocks, the distance between every two adjacent mortar cushion blocks is 1m, and the thickness of the first cushion blocks is equal to that of the floor slab protective layer.
6. The hollow floor slab construction process according to claim 1, wherein: and (7) additionally arranging a third cushion block between the upper layer of steel bars and the light composite solid pipe, and pressing the center of the light composite solid pipe through the third cushion block.
7. The hollow floor slab construction process according to claim 1, wherein: the distance between the light composite solid pipe close to the beam and the wall and the distance between the light composite solid pipe and the beam and the wall are not less than 200 mm; when the light composite solid tubes are installed, the same row of light composite solid tubes are kept straight, and the distance between the two rows of light composite solid tubes is 100 mm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114908914A (en) * | 2022-05-20 | 2022-08-16 | 江苏国鹏建工集团有限公司 | Method for improving construction quality of EPS foam light filling body hollow floor |
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| EP3517698A1 (en) * | 2018-01-29 | 2019-07-31 | SBS Betoni Oy | Precast floor slab and method for forming a flooring deck and building formed of precast floor slabs |
| CN110080454A (en) * | 2019-05-31 | 2019-08-02 | 中联世纪建设集团有限公司 | LPM light filling body Construction of Cast-in-situ Concrete Hollow |
| CN110439162A (en) * | 2019-08-27 | 2019-11-12 | 中冶建工集团有限公司 | The construction technology of cast-in-situ hollow building roof |
| CN212336470U (en) * | 2020-06-30 | 2021-01-12 | 周建荣 | Anti structure that floats of hollow superstructure of cast in situ concrete jumbo size mandrel |
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| CN114908914A (en) * | 2022-05-20 | 2022-08-16 | 江苏国鹏建工集团有限公司 | Method for improving construction quality of EPS foam light filling body hollow floor |
| CN114908914B (en) * | 2022-05-20 | 2023-11-21 | 江苏国鹏建工集团有限公司 | Method for improving construction quality of EPS foam light filling body hollow floor system |
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