CN112982774A - Construction method for forming multi-ribbed floor based on quick-assembly type keel formwork combined template - Google Patents
Construction method for forming multi-ribbed floor based on quick-assembly type keel formwork combined template Download PDFInfo
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- CN112982774A CN112982774A CN202110426076.0A CN202110426076A CN112982774A CN 112982774 A CN112982774 A CN 112982774A CN 202110426076 A CN202110426076 A CN 202110426076A CN 112982774 A CN112982774 A CN 112982774A
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- formwork
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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
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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- Structural Engineering (AREA)
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- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention discloses a construction method for forming a multi-ribbed floor based on a quick-splicing keel formwork combined template, which comprises the following steps of: 1) erecting a steel pipe support frame; 2) laying a main keel; 3) laying a metal keel; 4) erecting a formwork on the metal keel, wherein the formwork and the metal keel surround to form criss-cross rib beam grooves; the top of the metal keel is provided with a keel top surface, a formwork supporting surface and a formwork positioning clamping groove, two sides of the formwork are provided with formwork clamping strips clamped in the formwork positioning clamping groove, and two sides of the formwork are arranged on the formwork supporting surface; 5) laying an edge template; 6) manufacturing transverse and longitudinal rib beam reinforcement cages; 7) laying plate steel bars on the steel bar cage; 8) pouring concrete to form a ribbed floor slab; 9) and (5) concrete curing and form removal. The invention greatly reduces the investment of a large amount of square timber and template materials, has simple assembly, quick assembly and less labor, reduces the comprehensive cost of the assembled floor slab, improves the construction efficiency and conforms to the green energy-saving building.
Description
[ technical field ] A method for producing a semiconductor device
The invention belongs to the technical field of floor slab construction, and particularly relates to a construction method for forming a multi-ribbed floor slab based on a quick-splicing keel formwork combined template.
[ background of the invention ]
The most important disadvantage is that the filling box or the disposable shuttering is permanently pre-embedded and can not be reused, the corresponding cost is increased, or the reusable shuttering needs to be built according to the traditional square timber and shuttering, the on-site high-altitude operation is released, then the shuttering is placed at the corresponding floor position and fixed by steel nails, the square timber spacing is increased between the shuttering to keep the width of the rib girder, then the rib girder steel bar and the steel bar surface layer are manufactured and the concrete is poured for forming without reducing the using amount of the square timber secondary keel, the amount of the templates is not reduced or limited, square timbers used for spacing between the formworks are cut into a plurality of small sections, the small sections cannot be reused, the cost and the construction waste are increased, the workload of placing a rib beam line at high altitude is increased, a filling box or a formwork cannot be placed manually without accurate positioning, so that the box or the formwork is easy to shift, the derived problems that the rib beams are not on the same line or the widths of the rib beams are not uniform are caused, the operation safety risk is not increased conveniently, the assembly type industrial policy is not met, and the corresponding quality safety hazard is increased when the formwork shifts to cause the rib width to be non-uniform.
Therefore, there is a need to provide a new construction method for forming ribbed floor slab based on the assembled formwork of split keel formwork to solve the above technical problems.
[ summary of the invention ]
The invention mainly aims to provide a construction method for forming a multi-ribbed floor slab based on a quick-splicing keel formwork combined formwork, which reduces the investment and waste of square wood secondary keels, formworks, filling boxes or disposable formworks, improves the dimensional precision of the width of a rib beam, improves the construction efficiency of formwork support and formwork laying, and meets the requirements of green energy-saving buildings.
The invention realizes the purpose through the following technical scheme: a construction method for forming a multi-ribbed floor based on a fast-splicing keel formwork combination template comprises the following steps:
1) erecting a steel pipe support frame below a floor to be formed;
2) laying a horizontal stressed main keel on the steel pipe support frame;
3) laying metal keels on the main keels perpendicular to the main keels at set intervals to form secondary keel layers;
4) erecting a formwork on the secondary keel layer, wherein the formwork and the metal keel surround to form criss-cross rib beam grooves;
the top of the metal keel is provided with a keel top surface, a formwork and formwork supporting surface and a formwork positioning clamping groove which is arranged between the keel top surface and the formwork and is formed by downward sinking, two sides of the formwork are provided with formwork clamping strips in a downward extending manner, two sides of the formwork are arranged on the formwork and formwork supporting surface in a lapping manner, and the formwork is clamped in the formwork positioning clamping groove through the formwork clamping strips for positioning;
5) laying an edge template at the edge gap;
6) manufacturing a transverse rib beam reinforcement cage in the rib beam groove;
7) manufacturing a longitudinal rib beam reinforcement cage in the rib beam groove, and forming a criss-cross reinforcement cage assembly together with the transverse rib beam reinforcement cage;
8) paving criss-cross floor slab steel bars on the steel bar cage assembly;
9) pouring concrete to form a ribbed floor: concrete wraps the steel reinforcement cage assembly and fills the steel reinforcement cage assembly with the steel reinforcement cage assembly to form a criss-cross rib beam structure, and a floor slab steel reinforcement is wrapped above a formwork to form a plane floor slab structure;
10) and (5) curing and removing the concrete, and forming the ribbed floor.
Furthermore, the formworks are fully paved between every two adjacent metal keels, the two adjacent formworks in the same row are arranged close to each other, the formworks in the same row are arranged in an aligned mode, and the longitudinal and transverse rib intervals are kept equal.
Furthermore, an edge formwork is arranged between every two metal keels at two edge parts vertical to the metal keels, and two ends of the edge formwork are overlapped on the formwork shell supporting surface; and adopting full-length edge templates at two edge parts parallel to the metal keel.
Further, the top of the transverse rib beam reinforcement cage is higher than the top of the formwork; and main reinforcements in the longitudinal rib beam reinforcement cage are positioned on the inner side of the main reinforcements in the transverse rib beam reinforcement cage.
Further, the metal keel is of an aluminum alloy profile structure; the whole mould shell is of an aluminum alloy structure or a plastic material structure.
Furthermore, the bottom of the metal keel is of a plane structure and is provided with at least two through long T-shaped bolt grooves.
Furthermore, the metal keel is formed by splicing a plurality of sections according to the length of the floor slab; two adjacent metal keels on the same straight line are connected together through splicing fixing pieces and fixing bolts.
Furthermore, the formwork comprises a second bottom plate and a hollow shell which is raised upwards from the surface of the second bottom plate, a formwork reference surface distributed around the shell is formed on the upper surface of the second bottom plate, and the formwork clamping strips are arranged below the edges of two opposite sides of the second bottom plate.
Furthermore, the top surface of the shell is of a plane structure, and an air hole communicated with the inner cavity is formed in the top surface.
Furthermore, the formwork datum plane and the keel top surface are flush with the upper surface of the edge formwork.
Compared with the prior art, the construction method for forming the multi-ribbed floor based on the quick-splicing keel formwork combination template has the beneficial effects that: the method comprises the following steps of rapidly assembling and combining a turnover formwork made of aluminum alloy or plastic cement with high self-weight and high strength and a metal keel with a clamping groove on site to form a formwork-supporting-free, pay-off-free and positioning-free formwork ribbed floor formwork, then manufacturing criss-cross rib beam reinforcing steel bars and plate distribution reinforcing steel bars, and then pouring concrete to form a ribbed floor; the construction process greatly reduces the investment of a large number of square timbers and template materials, is simple to assemble, quick in template assembly, less in labor amount, low in loss, free of construction waste due to complete material turnover, greatly reduces the comprehensive manufacturing cost of the fabricated floor slab, improves the size precision of the width of the rib beam, improves the construction efficiency of formwork support and formwork laying, and accords with green energy-saving buildings.
[ description of the drawings ]
FIG. 1 is a schematic structural view of a steel tube support frame according to an embodiment of the present invention;
fig. 2 is a schematic structural view of the main keel erected according to the embodiment of the invention;
fig. 3 is a schematic structural view of the metal keel erected according to the embodiment of the invention;
figure 4 is a schematic structural view of a metal keel according to an embodiment of the invention;
FIG. 5 is a schematic structural view of a metal keel joint in an embodiment of the invention;
FIG. 6 is a schematic view of a formwork arrangement of an embodiment of the present invention;
FIG. 7 is a schematic view of an assembly structure of a formwork and a metal keel according to an embodiment of the invention;
FIG. 8 is a schematic cross-sectional view of a formwork embodiment of the present invention;
FIG. 9 is a schematic structural diagram of an embodiment of the present invention after an edge form is laid;
FIG. 10 is a schematic structural view of a transverse reinforcement cage according to an embodiment of the present invention;
FIG. 11 is a schematic structural view of a longitudinal reinforcement cage according to an embodiment of the present invention;
FIG. 12 is a schematic structural view of the embodiment of the present invention after the floor slab reinforcing steel bars are laid;
FIG. 13 is a schematic view of a partial cross-sectional structure of an embodiment of the present invention after concrete is poured;
the figures in the drawings represent:
1, a metal keel, 11T-shaped bolt grooves, 12 keel top surfaces, 121 bolt holes, 13 formwork supporting surfaces, 131 formwork positioning lines, 14 formwork positioning clamping grooves, 15 splicing fixing pieces, 151 a first bottom plate and 152 positioning plates; 16 fixing the bolt.
2, 21, a second bottom plate, 211, a formwork datum plane, 22, a shell, 221, 222, air holes, 223, an inclined plane structure, 224, a reinforcing rib and 23, a formwork clamping strip;
3, edge template;
4 steel tube support frame, 41 keel support; 5, main keel; 6 rib beam grooves; 7, transverse rib beam reinforcement cages; 8, longitudinal rib beam reinforcement cages; and 9, floor slab reinforcing steel bars.
[ detailed description ] embodiments
Example (b):
referring to fig. 1 to 13, the present embodiment is a construction method for forming a multi-ribbed floor slab based on a fast splicing type keel formwork combination template, which includes the following steps:
1) erecting a steel pipe support frame 4 below a floor to be formed;
2) laying a horizontal stressed main keel 5 on the steel pipe support frame 4;
3) laying metal keels 1 on the main keel 5 perpendicular to the direction of the main keel 5 at set intervals to form a secondary keel layer;
4) erecting a formwork 2 on the secondary keel layer, and forming criss-cross rib beam grooves 6 by the formwork 2 and the metal keels 1 in a surrounding manner; the top of the metal keel 1 is provided with a keel top surface 12, a formwork and formwork supporting surface 13, and a formwork positioning clamping groove 14 which is arranged between the keel top surface 12 and the formwork and is formed by downward sinking, two sides of the formwork 2 extend downwards to be provided with formwork clamping strips 23, two sides of the formwork 2 are erected on the formwork and formwork supporting surface 13, and are clamped in the formwork positioning clamping groove 14 through the formwork clamping strips 23 for positioning;
a formwork 2 is fully laid between every two adjacent metal keels 1, the two adjacent formworks 2 in the same row are arranged close to each other, the formworks 2 in the same row are arranged in an aligned mode, and the longitudinal and transverse rib spacing is kept equal;
5) the template blocks the edge gap: after all the formworks 2 are laid, edge formworks 3 are laid on the peripheral edges, and peripheral gaps are blocked;
an edge template 3 is arranged between every two metal keels 1 at two edge parts vertical to the metal keels 1, and two ends of the edge template 3 are erected on a template formwork supporting surface 13 in the metal keels 1; at two edge parts parallel to the metal keel 1, a full-length edge template 3 is adopted, one edge of the edge template is erected on a template formwork supporting surface 13, and the other edge of the edge template is erected on a main keel or a square wood keel or a cushion block arranged on the main keel;
6) manufacturing a transverse rib beam reinforcement cage 7 in the rib beam groove 6; the top of the transverse rib beam reinforcement cage 7 is higher than the top of the formwork 2;
7) manufacturing a longitudinal rib beam reinforcement cage 8 in the rib beam groove 6 to form a criss-cross reinforcement cage assembly, wherein main reinforcements in the longitudinal rib beam reinforcement cage 8 are positioned on the inner side of main reinforcements in the transverse rib beam reinforcement cage 7;
8) paving criss-cross floor slab steel bars 9 on the steel bar cage assembly;
9) pouring concrete to form a ribbed floor: the concrete wraps the steel reinforcement cage assembly and fills the rib beam grooves 6 to form a criss-cross rib beam structure, and the floor slab steel reinforcements 9 wrap the steel reinforcement cage assembly above the formwork 2 to form a plane floor slab structure;
10) concrete curing and form removal: after the concrete is cured in place according to curing conditions, the steel pipe support frame 4, the main keel 5, the metal keel 1, the formwork 2, the edge formwork 3 and the ribbed floor slab are sequentially removed for forming.
A plurality of keel supporting pieces 41 are arranged on the steel tube supporting frame 1, and the keel supporting pieces 41 are of U-shaped supporting plate structures. The main runners 5 are laid on the runner supports 41.
The metal keel 1 is an aluminum alloy section structure. The bottom of the metal keel 1 is of a plane structure and is provided with at least two through long T-shaped bolt grooves 11. The bottom of the metal keel 1 is arranged to be a plane structure, and horizontal positioning is facilitated. Three T-bolt slots 11 are provided in this embodiment.
The length of the metal keel 1 can be the same as the designed length of the floor slab, or can be formed by splicing a plurality of sections according to the designed length of the floor slab.
In this embodiment, two adjacent metal keels 1 on the same straight line are connected together by the splicing fixing member 15. When the assembled floor slab is manufactured, the metal keel 1 of the embodiment is cut into a section of a structure with a set length in advance, when the assembled floor slab is assembled on site, the end surfaces of the two metal keels 1 are opposite, and the two metal keels 1 are locked in the T-shaped bolt grooves 11 through the splicing fixing piece 15 and the fixing bolts 16, so that the connection of the two metal keels 1 can be realized, and the application of various lengths is realized. In this embodiment, the splicing fixing member 15 includes a first bottom plate 151 matching with the width of the metal keel 1, and positioning plates 152 formed by extending upward from both sides of the first bottom plate 151 and locking the surfaces of both sides of the metal keel 1. The first bottom plate 151 is provided with a plurality of connection holes (not shown) corresponding to the T-bolt grooves 11. The head of the fixing bolt 16 slides into the T-shaped bolt groove 11 from one end of the metal keel 1, then the splicing fixing piece 15 is clamped to wrap the adjacent two spliced keels A and B, the screw of the fixing bolt 16 penetrates through the connecting hole, and then the splicing fixing pieces 15 are locked with the keels A and B one by one through nuts to realize splicing.
In order to improve the assembling efficiency and convenience of the formwork shell, a plurality of formwork positioning lines 131 are arranged on the formwork shell supporting surface 13 in the embodiment. The metal keel 1 is divided into a formwork installation area and a formwork installation area along the length direction of the formwork positioning line 131. The formwork positioning line 131 allows, on the one hand, a quick positioning of the assembly position of the edge formwork 3 and, on the other hand, also of the formwork 2. The distance between the formwork location lines 131 can be flexibly set according to the width of the formwork and the formwork.
Still be provided with a plurality of bolt holes 121 that are used for assembly connection screw on fossil fragments top surface 12, connecting screw is used for fixed upper steel bar structure. The bolt holes 121 penetrate through the upper and lower surfaces of the metal keel 1.
The formwork 2 comprises a second bottom plate 21 and a hollow shell 22 which is raised upwards from the surface of the second bottom plate 21, a formwork reference surface 211 distributed around the shell 22 is formed on the upper surface of the second bottom plate 21, and formwork clamping strips 23 are arranged below the edges of the two opposite sides of the second bottom plate 21. The formwork reference surface 211 is flush with the keel top surface 12. The top surface of the housing 22 is a planar structure and is provided with an air hole 222 communicated with the inner cavity 221. The four outer peripheral surfaces of the housing 22 are beveled structures 223. The design of the air hole 222 and the inclined plane structure 223 is more beneficial to the demoulding of the formwork 2. The inner wall surface of the housing 22 is uniformly provided with a plurality of reinforcing ribs 224.
The upper surface of the edge forms 3 is flush with the keel top surface 12 and the formwork reference surface 211.
The whole mould shell 2 is of an aluminum alloy structure or a plastic material structure.
And 10), after the form is removed, forming a three-dimensional cavity structure with a trapezoidal section in the ribbed floor slab by the area occupied by the form 2.
The ribbed floor slab comprises a planar floor slab structure positioned at the upper part and rib beam structures which extend downwards from the lower surface of the planar floor slab structure and are distributed in a crisscross mode.
Horizontal rib beam steel reinforcement cage 7 and vertical rib beam steel reinforcement cage 8 in this embodiment are the rib beam steel reinforcement cage structure among the prior art, and it is including four main muscle that are the rectangle distribution, the stirrup of wrapping up four main muscle from the periphery together, and the stirrup is provided with a plurality ofly along main muscle direction interval, and four main muscle adopt the form of ligature to be in the same place with the stirrup ligature. In other embodiments, the transverse rib cage 7 and the longitudinal rib cage 8 may also adopt other structural forms, and the embodiment is not limited.
The construction method for forming the ribbed floor based on the fast-assembly keel formwork combined template has the greatest advantages of reducing the investment of a large number of square timbers and formwork materials, being simple to assemble, fast in formwork assembly, low in labor consumption, low in loss, free of construction waste due to complete material circulation, capable of reducing the comprehensive cost of the assembled floor, capable of improving the size precision of the width of a rib beam, capable of improving the construction efficiency of formwork support and formwork laying, and capable of meeting requirements of green energy-saving buildings.
The construction method for forming the ribbed floor based on the fast-spliced keel formwork combination template comprises the steps of adopting a recyclable formwork made of aluminum alloy or plastic materials with light dead weight and high strength and a metal keel with a clamping groove to be rapidly spliced and combined on site to form a formwork supporting-free, paying-off-free and positioning-free formwork ribbed floor formwork, then manufacturing criss-cross rib beam reinforcing steel bars and plate distribution reinforcing steel bars, and then pouring concrete to form the ribbed floor. In particular, the method comprises the following steps of,
1) the mould shell can be repeatedly used;
2) the formwork and the keel are combined to form a rapid formwork supporting and paying-off free formwork supporting technical scheme;
3) the formwork is provided with the clamping strips, the width of each clamping strip is matched with the keel clamping groove, the formwork can be quickly and accurately installed, and construction quality hidden danger caused by displacement of the formwork is avoided;
4) the height from the basic surface to the supporting surface of the formwork is equal to the thickness of a matched formwork and the height from the top surface of the keel to the supporting surface of the keel, the top surface of the keel, the basic surface of the formwork and the upper surface of the formwork after assembly and combination are in the same plane in the size design of the component, and the error is controlled within 5 mm;
5) the keel and the formwork on the same side are arranged closely, so that square timber components are not required to be added, the construction difficulty is reduced, and the construction efficiency is improved;
6) the keel is made of metal, so that the durability and the turnover frequency of the keel are improved, and the bearing capacity of the keel is improved;
7) the keel supporting surface and the top surface are designed with a height difference, so that the formwork or the formwork can be conveniently and quickly placed without adjusting the height, and the upper surface of the keel, the formwork reference surface and the upper surface of the formwork are on the same plane;
8) the keel is provided with a positioning clamping groove, so that the formwork can be quickly fastened conveniently, the positioning of the formwork is ensured, and the rib spacing is also ensured;
9) the rapid combination of the keel and the formwork is completed at one time, a series of complex work such as formwork erecting, paying off, formwork placing and the like is avoided, the construction efficiency is improved, and the construction quality is improved;
10) the keel formwork combination can turn over the formwork, so that the use amount of square wood keels and wood formworks is greatly reduced, and the wood investment and construction loss are reduced to the maximum extent; the method has the advantages of light dead weight, high bearing capacity, multiple times of repetition, quick and simple assembly, accurate positioning, no loss and the like.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (10)
1. A construction method for forming a multi-ribbed floor based on a fast-splicing keel formwork combination template is characterized in that: which comprises the following steps:
1) erecting a steel pipe support frame below a floor to be formed;
2) laying a horizontal stressed main keel on the steel pipe support frame;
3) laying metal keels on the main keels perpendicular to the main keels at set intervals to form secondary keel layers;
4) erecting a formwork on the secondary keel layer, wherein the formwork and the metal keel surround to form criss-cross rib beam grooves;
the top of the metal keel is provided with a keel top surface, a formwork and formwork supporting surface and a formwork positioning clamping groove which is arranged between the keel top surface and the formwork and is formed by downward sinking, two sides of the formwork are provided with formwork clamping strips in a downward extending manner, two sides of the formwork are arranged on the formwork and formwork supporting surface in a lapping manner, and the formwork is clamped in the formwork positioning clamping groove through the formwork clamping strips for positioning;
5) laying an edge template at the edge gap;
6) manufacturing a transverse rib beam reinforcement cage in the rib beam groove;
7) manufacturing a longitudinal rib beam reinforcement cage in the rib beam groove, and forming a criss-cross reinforcement cage assembly together with the transverse rib beam reinforcement cage;
8) paving criss-cross floor slab steel bars on the steel bar cage assembly;
9) pouring concrete to form a ribbed floor: concrete wraps the steel reinforcement cage assembly and fills the steel reinforcement cage assembly with the steel reinforcement cage assembly to form a criss-cross rib beam structure, and a floor slab steel reinforcement is wrapped above a formwork to form a plane floor slab structure;
10) and (5) curing and removing the concrete, and forming the ribbed floor.
2. The construction method for forming the multi-ribbed floor slab based on the split keel formwork combination template as claimed in claim 1, wherein: the formworks are fully paved between every two adjacent metal keels, the two adjacent formworks in the same row are arranged close to each other, the formworks in the same row are arranged in an aligned mode, and the longitudinal and transverse rib intervals are kept equal.
3. The construction method for forming the multi-ribbed floor slab based on the split keel formwork combination template as claimed in claim 1, wherein: an edge formwork is arranged between every two metal keels at two edge parts vertical to the metal keels, and two ends of the edge formwork are overlapped on the formwork shell supporting surface; and adopting full-length edge templates at two edge parts parallel to the metal keel.
4. The construction method for forming the multi-ribbed floor slab based on the split keel formwork combination template as claimed in claim 1, wherein: the top of the transverse rib beam reinforcement cage is higher than the top of the formwork; and main reinforcements in the longitudinal rib beam reinforcement cage are positioned on the inner side of the main reinforcements in the transverse rib beam reinforcement cage.
5. The construction method for forming the multi-ribbed floor slab based on the split keel formwork combination template as claimed in claim 1, wherein: the metal keel is of an aluminum alloy profile structure; the whole mould shell is of an aluminum alloy structure or a plastic material structure.
6. The construction method for forming the multi-ribbed floor slab based on the split keel formwork combination template as claimed in claim 1, wherein: the bottom of the metal keel is of a plane structure and is provided with at least two through long T-shaped bolt grooves.
7. The construction method for forming the multi-ribbed floor slab based on the split keel formwork combination template as claimed in claim 6, wherein: the metal keel is formed by splicing a plurality of sections according to the length of the floor slab; two adjacent metal keels on the same straight line are connected together through splicing fixing pieces and fixing bolts.
8. The construction method for forming the multi-ribbed floor slab based on the split keel formwork combination template as claimed in claim 1, wherein: the formwork comprises a second bottom plate and a hollow shell which is raised upwards from the surface of the second bottom plate, a formwork reference surface distributed around the shell is formed on the upper surface of the second bottom plate, and formwork clamping strips are arranged below the edges of two opposite sides of the second bottom plate.
9. The construction method for forming the multi-ribbed floor slab based on the split keel formwork combination template as claimed in claim 8, wherein: the top surface of the shell is of a plane structure, and an air hole communicated with the inner cavity is formed in the top surface.
10. The construction method for forming the multi-ribbed floor slab based on the split keel formwork combination template as claimed in claim 8, wherein: the formwork datum plane and the keel top surface are flush with the upper surface of the edge formwork.
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| CN112240070A (en) * | 2020-11-10 | 2021-01-19 | 中国建筑一局(集团)有限公司 | Assembly structure of ribbed floor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113846789A (en) * | 2021-11-01 | 2021-12-28 | 河北科技师范学院 | Assembled concrete bidirectional ribbed floor structure and construction method thereof |
| CN117846283A (en) * | 2024-03-04 | 2024-04-09 | 山东鼎泰建设项目管理有限公司 | Widening shuttering device |
| CN117846283B (en) * | 2024-03-04 | 2024-05-24 | 山东鼎泰建设项目管理有限公司 | Widening shuttering device |
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| CN112982774B (en) | 2023-04-11 |
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