CN117027498B - Residential building structure with floor system free of supporting and construction method thereof - Google Patents
Residential building structure with floor system free of supporting and construction method thereof Download PDFInfo
- Publication number
- CN117027498B CN117027498B CN202311306326.2A CN202311306326A CN117027498B CN 117027498 B CN117027498 B CN 117027498B CN 202311306326 A CN202311306326 A CN 202311306326A CN 117027498 B CN117027498 B CN 117027498B
- Authority
- CN
- China
- Prior art keywords
- prefabricated
- cast
- floor slab
- wall column
- slab
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010276 construction Methods 0.000 title claims abstract description 21
- 238000011065 in-situ storage Methods 0.000 claims abstract description 78
- 239000002131 composite material Substances 0.000 claims abstract description 60
- 239000004567 concrete Substances 0.000 claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 44
- 239000010959 steel Substances 0.000 claims description 44
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 20
- 239000011150 reinforced concrete Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 8
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H1/00—Buildings or groups of buildings for dwelling or office purposes; General layout, e.g. modular co-ordination or staggered storeys
- E04H1/02—Dwelling houses; Buildings for temporary habitation, e.g. summer houses
-
- 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
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/20—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
-
- 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
-
- 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
- E04G21/14—Conveying or assembling building elements
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention relates to a building cover support-free residential building structure and a construction method thereof, wherein the building cover support-free residential building structure comprises a cast-in-situ wall column unit, a prefabricated superposed main beam, a prefabricated superposed secondary beam, a ribbed support-free superposed floor slab, a common superposed slab and a prefabricated basin-shaped floor slab; the construction method comprises the steps of firstly splicing templates according to the positions of cast-in-situ wall column units and arranging a plurality of beam lower supporting pieces; then hoisting the prefabricated superposed main beams; then hoisting the prefabricated superposed secondary beams; pouring the template of the cast-in-situ wall column unit, and removing the beam lower support piece; and finally, paving the ribbed support-free composite floor slab, the prefabricated basin-shaped floor slab and the common composite slab, and finally, pouring concrete after the organic electric pipelines are paved. Compared with the prior art, the residential building structure for realizing the support-free building cover aims at the residential building structure, and can realize low cost and high efficiency and maximally meet the construction of a house with a specific configuration.
Description
Technical Field
The invention relates to the field of prefabricated building, in particular to a residential building structure with a floor system free of supporting and a construction method thereof.
Background
Most of the assembled floors of the existing residential buildings are required to be provided with full supports at the bottoms of the prefabricated parts, so that the construction measures on site are increased or not, the construction cost is obviously higher than that of the cast-in-situ floors, and the popularization of the assembled buildings is hindered.
The existing residential building emphasizes that the structural member does not protrude beams or columns on the indoor side, so that the beam width of the main body structure is always required to be the same as the thickness of the shear wall, and the reinforcing steel bars at the intersecting positions of the beam wall are very dense. Because the production and the installation of the connecting steel bars can introduce positioning deviation when the prefabricated parts are produced, and the highly dense node steel bars are distributed in a superposition way, the installation of the prefabricated beams connected with the shear wall is very inconvenient, and therefore, the prefabricated beams are rarely used in practice; only prefabricated plate members are used, and the support-free of the assembled floor system cannot be realized due to the lack of supporting conditions.
Disclosure of Invention
The invention aims at: the utility model provides a building roof support-free residential building structure and a construction method thereof, which aims at the residential building structure and provides a building roof support-free residential building structure, compared with the prior art, the building structure can realize low cost and high efficiency, and can meet the building of a house with a specific configuration to the greatest extent.
The invention is realized by the following technical scheme: the building roof support-free residential building structure comprises a cast-in-situ wall column unit, a prefabricated superposed main beam, a prefabricated superposed secondary beam, a ribbed support-free superposed floor slab, a common laminated slab and a prefabricated basin-shaped floor slab;
the two ends of the prefabricated superposed girder are provided with overhanging steel bars and shear key grooves;
the ribbed support-free composite floor slab is a reinforced concrete slab, the front side and the rear side of the ribbed support-free composite floor slab are provided with first steel bar parts which extend outwards, the surface of the ribbed support-free composite floor slab is provided with a plurality of first truss steel bars which are consistent with the extending direction of the first steel bar parts, and reinforcing ribs formed by concrete are poured on the surface of part of the first truss steel bars;
the common laminated slab is a reinforced concrete slab, the front side and the rear side of the common laminated slab are provided with second steel bar parts extending outwards, and the surface of the common laminated slab is provided with a plurality of second truss steel bars with the same extending direction as the second steel bar parts;
the prefabricated basin-shaped floor slab is a reinforced concrete slab, the front side and the rear side of the prefabricated basin-shaped floor slab are provided with third steel bar parts extending outwards, the middle part of the prefabricated basin-shaped floor slab is provided with a concave area, and a pipeline is embedded in the concave area;
the cast-in-situ wall column units are provided with a plurality of groups and are sequentially arranged in the front-back direction, the cast-in-situ wall column units are spliced through templates and formed by post casting, and a plurality of overhanging wall limbs are arranged on the cast-in-situ wall column units from left to right;
a plurality of removable beam lower supporting pieces are arranged between any two adjacent cast-in-situ wall column units, a prefabricated superposed main beam is erected between the adjacent cast-in-situ wall column units, overhanging reinforcing steel bars at two ends of the prefabricated superposed main beam extend into overhanging wall limbs of the cast-in-situ wall column units, and the bottom of the prefabricated superposed main beam is supported by the beam lower supporting pieces; the cast-in-situ wall column unit and the prefabricated superposed main girder are connected into a whole while the cast-in-situ wall column unit is cast and molded;
among the prefabricated superposed main beams, the prefabricated superposed main beams are divided into a long cross region and a short cross region according to the span between two adjacent prefabricated superposed main beams, and the prefabricated superposed main beams positioned at the left side and the right side of the long cross region are also pre-buried with bearing grooves;
the prefabricated superposed secondary beam is erected in the bearing groove, and filler is filled between the prefabricated superposed secondary beam and the bearing groove;
the ribbed support-free composite floor slab is paved in a long cross region, and two sides of the ribbed support-free composite floor slab are respectively supported on a first supporting piece and a prefabricated composite secondary beam which are arranged on the cast-in-situ wall column unit;
the prefabricated basin-shaped floor slab is supported on a second supporting piece arranged on the prefabricated superposed main beam in the short span area, and third steel bars at two sides of the prefabricated basin-shaped floor slab are respectively erected on the prefabricated superposed main beams at two sides of the short span area;
the short-span area is paved by adopting a common superimposed sheet in the area where the prefabricated basin-shaped floor slab is not paved; second steel bars at two sides of the common superimposed sheet are respectively erected on the prefabricated superimposed main beams at two sides of the short span region;
and (3) arranging an electromechanical pipeline and a concrete cast-in-situ layer on the surface formed by the ribbed support-free composite floor slab, the common composite slab and the prefabricated basin-shaped floor slab which are laid together.
A construction method of a residential building structure with a floor free of supporting comprises the following steps:
step 1, splicing templates according to the positions of cast-in-situ wall column units so as to ensure that the cast-in-situ wall column units are orderly arranged from front to back, and a plurality of overhanging wall limbs are arranged in the cast-in-situ wall column units from left to right; meanwhile, a plurality of beam lower supporting pieces are arranged between templates of any adjacent cast-in-situ wall column units;
step 2, hoisting the prefabricated superposed main beams, wherein the prefabricated superposed main beams are arranged in the front-back direction, and the overhanging reinforcing steel bars at the two ends of the prefabricated superposed main beams extend into overhanging wall limbs of the cast-in-situ wall column unit; the side walls of the overhanging reinforcing steel bars positioned at the two sides of the long span area are provided with bearing grooves, and the bottoms of the prefabricated superposed main beams are supported by beam lower supporting pieces;
step 3, hoisting the prefabricated superposed secondary beams, and erecting two ends of the prefabricated superposed secondary beams on bearing grooves of prefabricated superposed main beams on the left side and the right side of a long span region;
step 4, pouring a template of the cast-in-situ wall column unit to connect the cast-in-situ wall column unit and the prefabricated superposed main girder into a whole;
step 5, removing the support of the beam lower support;
step 6, spraying sealing glue at the joint of the prefabricated laminated main beam and the prefabricated laminated secondary beam;
step 7, pouring high-strength non-shrinkage grouting material at the gap between the prefabricated laminated main beam and the prefabricated laminated secondary beam;
step 8, connecting a first bearing piece for bearing the ribbed support-free composite floor slab on the cast-in-situ wall column unit in the long span region, and connecting a second bearing piece for bearing the prefabricated basin-shaped floor slab on the side wall of the prefabricated composite girder in the short span region;
step 9, paving a ribbed support-free composite floor slab in a long span region, wherein first steel bars at two sides of the ribbed support-free composite floor slab are respectively supported on a first supporting piece and a prefabricated composite secondary beam which are arranged on a cast-in-situ wall column unit;
step 10, installing a second bearing on the side wall of the prefabricated superposed main girder in the short span area, and supporting the prefabricated basin-shaped floor slab on the second bearing; the third steel bars on the two sides of the prefabricated basin-shaped floor slab are respectively erected on the prefabricated superposed main beams on the two sides of the short span region;
step 11, paving common superimposed sheets in the residual area of the short span region, wherein second reinforcing steel bars at two sides of the common superimposed sheets are respectively erected on prefabricated superimposed main beams at two sides of the short span region;
step 12, arranging an electromechanical pipeline on the surface formed by jointly paving the ribbed support-free composite floor slab, the common composite slab and the prefabricated basin-shaped floor slab;
and 13, pouring concrete on the basis of the step 12 to form a concrete cast-in-place layer, and removing the first bearing piece and the second bearing piece.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention can realize the support-free and mould-free of the residential building floor slab; compared with the existing building configuration and construction mode, the method has the advantages that the support of the on-site formwork is eliminated, green construction is realized, and the material consumption in the construction process is obviously reduced;
2. the method is characterized in that a prefabricated beam pre-assembly method is adopted, and the prefabricated superposed main beams are positioned in advance before concrete is poured into the cast-in-situ wall column units; because the concrete in the cast-in-situ wall column unit is not poured, the positioning of the steel bars in the cast-in-situ wall column unit is convenient to adjust, and the installation difficulty caused by the position interference between the prefabricated Liang Waishen steel bars and the steel bars in the cast-in-situ wall column is avoided;
3. the method of prefabricating the beam is adopted, and when pouring the vertical component, only one concrete pouring is needed; the traditional building configuration and construction mode require twice pouring of the vertical component; the invention can effectively avoid the problem of insufficient concrete strength caused by unfavorable vibration in the beam column node area, and can also improve the construction efficiency of residential buildings;
4. the connection nodes of the primary beam and the secondary beam can be quickly installed on the premise of ensuring safety, and the indoor effect after construction is completely consistent with that of a conventional cast-in-situ structure, so that the indoor decoration effect is not influenced;
5. the invention can realize the functional requirements of residential buildings on kitchen and bathroom areas through the combined application of the ribbed support-free composite floor slab, the common composite slab and the prefabricated basin-shaped floor slab, and provides a systematic solution.
Drawings
FIG. 1 is a schematic view of the structure of the invention after installation molding;
FIG. 2 is a schematic view of a prefabricated laminated main beam;
FIG. 3 is a schematic view of a structure of a prefabricated composite secondary beam;
FIG. 4 is a schematic structural view of a ribbed, support-free composite floor slab;
FIG. 5 is a schematic view of a structure of a conventional laminated slab;
FIG. 6 is a schematic view of the structure of a prefabricated basin floor;
FIG. 7 is a schematic diagram of the cast-in-place wall column unit formwork installation and beam lower support layout of step 1;
FIG. 8 is a schematic view of the layout of the prefabricated laminated main beams in step 2;
FIG. 9 is a schematic view of the installation of the prefabricated composite secondary beam of step 3;
FIG. 10 is a schematic illustration of the casting of the cast-in-place wall column unit in the form of step 4;
FIG. 11 is a schematic view of step 5 with the underbeam support removed;
FIG. 12 is a schematic view of step 6 of spraying a sealer on the junction of the pre-fabricated laminated primary and secondary beams;
FIG. 13 is a schematic illustration of step 7 of pouring a high strength non-shrink grouting material at the gap between the pre-fabricated laminated main beams and the pre-fabricated laminated secondary beams;
FIG. 14 is a schematic view of the first and second supports installed in step 8;
FIG. 15 is a schematic diagram of step 9 laying a ribbed support-free composite floor slab;
FIG. 16 is a schematic illustration of step 10 laying a prefabricated basin floor;
FIG. 17 is a schematic view of step 11 completing the laying of a common laminated slab;
FIG. 18 is a schematic illustration of step 12 completing electromechanical pipeline laying;
fig. 19 is a schematic view of the casting of the concrete cast-in-place layer completed in step 13.
Description of the reference numerals:
1-cast-in-situ wall column units and 11-overhanging wall limbs;
2-prefabricating a superposed girder, 21-overhanging steel bars, 22-shear key grooves, 23-bearing grooves and 24-girder stirrups; 25-cast-in-situ cornice;
3-prefabricating laminated secondary beams, 31-limiting gaps and 32-secondary beam stirrups;
4-ribbed support-free composite floor slab, 41-first steel bar parts, 42-first truss steel bars and 43-reinforcing ribs;
5-common superimposed sheet, 51-second reinforcing steel bar part, 52-second truss reinforcing steel bar;
6-prefabricated basin-shaped floor slabs, 61-third reinforcement parts, 62-concave areas, 63-pipelines and 64-floor stirrups;
7-electromechanical lines;
8-a concrete cast-in-situ layer;
91-beam lower support piece, 92-sealing glue, 93-high-strength non-shrink grouting material, 94-first support piece, 941-first bracket tool, 942 cross beam and 95-second support piece.
Detailed Description
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "front", "rear", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
The invention is described in detail below with reference to the accompanying drawings:
as shown in fig. 1-6: the building roof support-free residential building structure comprises a cast-in-situ wall column unit 1, a prefabricated superposed main beam 2, a prefabricated superposed secondary beam 3, a ribbed support-free superposed floor slab 4, a common laminated slab 5 and a prefabricated basin-shaped floor slab 6;
the two ends of the prefabricated superposed girder 2 are provided with overhanging steel bars 21 and shear key grooves 22;
the ribbed support-free composite floor slab 4 is a reinforced concrete slab, the front side and the rear side of the ribbed support-free composite floor slab 4 are provided with first steel bar parts 41 which extend outwards, the surface of the ribbed support-free composite floor slab 4 is provided with a plurality of first truss steel bars 42 which are consistent with the extending direction of the first steel bar parts 41, and reinforcing ribs 43 formed by concrete are poured on the surface of part of the first truss steel bars 42;
the common laminated slab 5 is a reinforced concrete slab, the front side and the rear side of the common laminated slab 5 are provided with second reinforcing steel bar parts 51 extending outwards, and the surface of the common laminated slab 5 is provided with a plurality of second truss reinforcing steel bars 52 with the same extending direction as the second reinforcing steel bar parts 51;
the prefabricated basin-shaped floor slab 6 is a reinforced concrete slab, the front side and the rear side of the prefabricated basin-shaped floor slab 6 are provided with third steel bar parts 61 extending outwards, the middle part of the prefabricated basin-shaped floor slab 6 is provided with a concave area 62, and a pipeline 63 is embedded in the concave area 62;
the cast-in-situ wall column units 1 are provided with a plurality of groups and are sequentially arranged in the front-back direction, the cast-in-situ wall column units 1 are spliced through templates and formed by post casting, and a plurality of overhanging wall limbs 11 are arranged on the cast-in-situ wall column units 1 from left to right;
a plurality of removable beam lower supporting pieces 91 are arranged between any two adjacent cast-in-situ wall column units 1, a prefabricated superposed girder 2 is erected between the adjacent cast-in-situ wall column units 1, overhanging reinforcing steel bars 21 at two ends of the prefabricated superposed girder 2 extend into overhanging wall limbs 11 of the cast-in-situ wall column units 1, and the bottom of the prefabricated superposed girder 2 is supported by the beam lower supporting pieces 91; the cast-in-situ wall column unit 1 is connected with the prefabricated superposed main beam 2 into a whole while the cast-in-situ wall column unit 1 is cast and molded;
among the prefabricated laminated girders 2, the prefabricated laminated girders 2 are divided into a long span region and a short span region according to the span between two adjacent prefabricated laminated girders 2, and the prefabricated laminated girders 2 positioned at the left side and the right side of the long span region are also pre-buried with bearing grooves 23;
the prefabricated laminated secondary beam 3 is erected on the bearing groove 23, and filler is filled between the prefabricated laminated secondary beam 3 and the bearing groove 23;
the ribbed support-free composite floor slab 4 is paved in a long span area, and two sides of the ribbed support-free composite floor slab 4 are respectively supported on a first supporting piece and a prefabricated composite secondary beam 3 which are arranged on the cast-in-situ wall column unit 1;
the prefabricated basin-shaped floor slab 6 is supported on a second supporting piece 95 arranged on the short-span prefabricated superposed main beam 2, and third steel bar parts 61 on two sides of the prefabricated basin-shaped floor slab 6 are respectively erected on the prefabricated superposed main beams 2 on two sides of the short-span;
the areas of the short-span areas, where the prefabricated basin-shaped floor slabs 6 are not paved, are paved by adopting common superimposed sheets 5; second reinforcing steel bar parts 51 at two sides of the common laminated slab 5 are respectively erected on the prefabricated laminated main beams 2 at two sides of the short span region;
and an electromechanical pipeline 7 and a concrete cast-in-situ layer 8 are laid on the surface formed by the ribbed support-free composite floor slab 4, the common composite slab 5 and the prefabricated basin-shaped floor slab 6 which are laid together.
Wherein, the prefabricated superposed girder 2 is embedded with a girder stirrup 24 with the top extending out of the prefabricated superposed girder 2;
the secondary beam stirrups 32 with the tops extending out of the prefabricated laminated secondary beam 3 are embedded in the prefabricated laminated secondary beam 3;
floor stirrups 64 with tops extending out of the prefabricated basin-shaped floor 6 are buried at the left side and the right side of the prefabricated basin-shaped floor 6.
The stirrups are mainly matched with the steel bar parts arranged on the floor slabs, so that the connection strength of the stirrups and the steel bar parts after pouring is improved.
Limiting notches 31 matched with the bearing grooves 23 are formed in the front side and the rear side of the lower portions of the two ends of the prefabricated laminated secondary beam 3.
The first support is a plurality of first bracket fixtures 941 installed on the cast-in-situ wall column unit 1 through bolts, and a beam 942 arranged on the first bracket fixtures 941.
The second supporting member 95 is a plurality of second bracket tools which are installed on the prefabricated superposed main beam 2 through bolts.
The application method of the building structure comprises the following steps:
a construction method of a residential building structure with a floor free of supporting comprises the following steps:
step 1, splicing templates according to the positions of cast-in-situ wall column units 1, wherein the cast-in-situ wall column units 1 are sequentially arranged from front to back, and a plurality of overhanging wall limbs 11 are arranged in the cast-in-situ wall column units 1 from left to right; meanwhile, a plurality of beam lower supporting pieces 91 (shown in fig. 7) are arranged between the templates of any adjacent cast-in-situ wall column units 1;
the height of the beam lower support 91 is here adjustable, which facilitates the adjustment of the height of the prefabricated superimposed main beam 2.
Step 2, hoisting the prefabricated superposed main beams 2, wherein the prefabricated superposed main beams 2 are arranged in a front-back direction, and the overhanging steel bars 21 at the two ends of the prefabricated superposed main beams 2 extend into the overhanging wall limbs 11 of the cast-in-situ wall column unit 1; the side walls of the overhanging steel bars 21 positioned at the two sides of the long span area are provided with bearing grooves 23, and the bottom of the prefabricated superposed main beam 2 is supported by a beam lower support 91 (as shown in fig. 8);
step 3, hoisting the prefabricated laminated secondary beams 3, and erecting two ends of the prefabricated laminated secondary beams on the bearing grooves 23 of the prefabricated laminated main beams 2 on the left side and the right side of the long span region (as shown in fig. 9);
step 4, concrete pouring is carried out on the template of the cast-in-situ wall column unit 1, so that the cast-in-situ wall column unit 1 and the prefabricated superposed main beam 2 are connected into a whole (as shown in fig. 10);
the cast-in-place concrete is initially solidified to ensure that the cast-in-place wall column unit 1 and the prefabricated superimposed main beams 2 are now ready for the removal of the support of the lower beam supports 91 and the laying of the floor.
Step 5, removing the beam lower support 91 bearing (as shown in fig. 11);
step 6, spraying sealing glue 92 (shown in fig. 12) at the joint of the prefabricated laminated main beam 2 and the prefabricated laminated secondary beam 3;
the spraying of the sealing glue 92 forms a relatively sealed space between the prefabricated laminated main beam 2 and the prefabricated laminated secondary beam 3, and the slurry does not ooze out when grouting is performed at a later stage.
Step 7, pouring high-strength non-shrinkage grouting material 93 (shown in fig. 13) at the gap between the prefabricated laminated main beam 2 and the prefabricated laminated secondary beam 3;
by pouring the high-strength non-shrinkage grouting material, the connection strength between the prefabricated laminated main beam 2 and the prefabricated laminated secondary beam 3 can be improved.
Step 8, connecting a first supporting piece 94 for supporting the ribbed support-free composite floor slab 4 on the cast-in-situ wall column unit 1 in a long span region, and simultaneously connecting a second supporting piece 95 for supporting the prefabricated basin-shaped floor slab 6 on the side wall of the prefabricated composite girder 2 in a short span region; this is mainly to assist in supporting the floor (as shown in figure 14).
Step 9, paving a ribbed support-free composite floor slab 4 in a long span region, wherein first steel bar parts 41 on two sides of the ribbed support-free composite floor slab are respectively supported on a first supporting member and a prefabricated composite secondary beam 3 which are arranged on a cast-in-situ wall column unit 1; (as shown in fig. 15);
step 10, installing a second bearing member 95 on the side wall of the prefabricated superposed main beam 2 in the short span region, and supporting the prefabricated basin-shaped floor slab 6 on the second bearing member 95; wherein the third steel bar parts 61 on the two sides of the prefabricated basin-shaped floor slab 6 are respectively erected on the prefabricated superposed main beams 2 on the two sides of the short span region; (as shown in fig. 16);
step 11, paving the common laminated slab 5 in the residual area of the short span region, wherein second reinforcing steel bar parts 51 at two sides of the common laminated slab 5 are respectively erected on the prefabricated laminated main beams 2 at two sides of the short span region (as shown in fig. 17);
step 12, arranging an organic pipeline 7 (shown in figure 18) on the surface formed by jointly paving the ribbed support-free composite floor slab 4, the common composite slab 5 and the prefabricated basin-shaped floor slab 6;
step 13, pouring concrete on the basis of step 12 to form a concrete cast-in-place layer 8, and removing the first support 94 and the second support 95 (shown in fig. 19).
The first support in step 8 is a plurality of first bracket fixtures 941 mounted on the cast-in-situ wall column unit 1 by bolts and a beam 942 mounted on the first bracket fixtures 941. The ribbed support-free composite floor slab is supported on the cross beams 942 of the first supporting member; the cross beam can be a steel pipe or a square.
In actual construction, the fact that the screw holes are reserved in the cast-in-situ wall column unit 1 is considered to facilitate the installation of the first bracket tool.
The second supporting members 95 in the step 8 are a plurality of second bracket tools installed on the prefabricated laminated main beam 2 through bolts.
In actual use, the reservation of the screw holes on the prefabricated superposed main beam 2 is also considered to facilitate the installation of the second bracket tool.
In addition, the side face of the prefabricated superposed girder 2 can be provided with a reinforced bar of a cast-in-situ cornice for later casting.
It should be noted that the foregoing description is only a preferred embodiment of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood that modifications, equivalents, improvements and modifications to the technical solution described in the foregoing embodiments may occur to those skilled in the art, and all modifications, equivalents, and improvements are intended to be included within the spirit and principle of the present invention.
Claims (8)
1. The utility model provides a residential building structure that superstructure exempted from to prop which characterized in that: the prefabricated composite slab comprises a cast-in-situ wall column unit (1), a prefabricated composite girder (2), a prefabricated composite secondary girder (3), a ribbed support-free composite floor slab (4), a common composite slab (5) and a prefabricated basin-shaped floor slab (6);
the two ends of the prefabricated superposed girder (2) are provided with overhanging steel bars (21) and shear key grooves (22);
the ribbed support-free composite floor slab (4) is a reinforced concrete slab, the front side and the rear side of the ribbed support-free composite floor slab (4) are provided with first steel bar parts (41) extending outwards, the surface of the ribbed support-free composite floor slab (4) is provided with a plurality of first truss steel bars (42) which are consistent with the extending direction of the first steel bar parts (41), and reinforcing ribs (43) formed by concrete are poured on the surface of part of the first truss steel bars (42);
the common laminated slab (5) is a reinforced concrete slab, the front side and the rear side of the common laminated slab (5) are provided with second reinforcing steel bar parts (51) extending outwards, and the surface of the common laminated slab (5) is provided with a plurality of second truss reinforcing steel bars (52) which are consistent with the extending direction of the second reinforcing steel bar parts (51);
the prefabricated basin-shaped floor slab (6) is a reinforced concrete slab, the front side and the rear side of the prefabricated basin-shaped floor slab (6) are provided with third reinforced bar parts (61) extending outwards, the middle part of the prefabricated basin-shaped floor slab (6) is provided with a concave area (62), and a pipeline (63) is pre-buried in the concave area (62);
the cast-in-situ wall column units (1) are provided with a plurality of groups and are sequentially arranged in the front-back direction, the cast-in-situ wall column units (1) are spliced through templates and formed by post casting, and a plurality of overhanging wall limbs (11) are arranged on the cast-in-situ wall column units (1) from left to right;
a plurality of removable beam lower supporting pieces (91) are arranged between any two adjacent cast-in-situ wall column units (1), a prefabricated superposed main beam (2) is erected between the adjacent cast-in-situ wall column units (1), overhanging steel bars (21) at two ends of the prefabricated superposed main beam (2) extend into overhanging wall limbs (11) of the cast-in-situ wall column units (1), and the bottom of the prefabricated superposed main beam (2) is supported by the beam lower supporting pieces (91); the cast-in-situ wall column unit (1) and the prefabricated superposed main beam (2) are connected into a whole while the cast-in-situ wall column unit (1) is cast and molded;
among the prefabricated laminated girders (2), the prefabricated laminated girders are divided into a long cross region and a short cross region according to the span between two adjacent prefabricated laminated girders (2), and the prefabricated laminated girders (2) positioned at the left side and the right side of the long cross region are also pre-buried with bearing grooves (23);
the prefabricated superposed secondary beams (3) are erected on the bearing grooves (23), and fillers are filled between the prefabricated superposed secondary beams (3) and the bearing grooves (23);
the ribbed support-free composite floor slab (4) is paved in a long span area, and two sides of the ribbed support-free composite floor slab (4) are respectively supported on a first supporting piece and a prefabricated composite secondary beam (3) which are arranged on the cast-in-situ wall column unit (1);
the prefabricated basin-shaped floor slab (6) is supported on a second supporting piece (95) arranged on the short-span prefabricated superposed main beam (2), and third reinforcing steel bar parts (61) on two sides of the prefabricated basin-shaped floor slab (6) are respectively erected on the prefabricated superposed main beams (2) on two sides of the short-span;
the areas of the short-span areas, where the prefabricated basin-shaped floor slabs (6) are not paved, are paved by adopting common superimposed sheets (5); second reinforcing steel bar parts (51) at two sides of the common laminated slab (5) are respectively erected on the prefabricated laminated main beams (2) at two sides of the short span region;
and an electromechanical pipeline (7) and a concrete cast-in-situ layer (8) are arranged on the surface formed by the ribbed support-free composite floor slab (4), the common composite slab (5) and the prefabricated basin-shaped floor slab (6) which are laid together.
2. The floor supported free residential building structure of claim 1, wherein:
the prefabricated superposed main beam (2) is internally embedded with a main beam stirrup (24) with the top extending out of the prefabricated superposed main beam (2);
the secondary beam stirrups (32) with the tops extending out of the prefabricated laminated secondary beam (3) are embedded in the prefabricated laminated secondary beam (3);
floor stirrups (64) with tops extending out of the prefabricated basin-shaped floor (6) are buried at the left side and the right side of the prefabricated basin-shaped floor (6).
3. The floor supported free residential building structure of claim 1, wherein: limiting notches (31) matched with the bearing grooves (23) are formed in the front side and the rear side of the lower portions of the two ends of the prefabricated superposed secondary beam (3).
4. The floor supported free residential building structure of claim 1, wherein: the first supporting piece is a plurality of first bracket tools (941) which are arranged on the cast-in-situ wall column unit (1) through bolts and a cross beam (942) which is arranged on the first bracket tools (941).
5. The floor supported free residential building structure of claim 1, wherein: the second supporting piece (95) is a plurality of second bracket tools which are arranged on the prefabricated superposed main beam (2) through bolts.
6. A construction method of a residential building structure with a floor free of supporting is characterized by comprising the following steps: the method comprises the following steps:
step 1, splicing templates according to the positions of cast-in-situ wall column units (1), wherein the cast-in-situ wall column units (1) are sequentially arranged from front to back, and a plurality of overhanging wall limbs (11) are arranged in the cast-in-situ wall column units (1) from left to right; meanwhile, a plurality of beam lower supporting pieces (91) are arranged between templates of any adjacent cast-in-situ wall column units (1);
step 2, hoisting the prefabricated superposed main beams (2), wherein the prefabricated superposed main beams (2) are arranged in the front-back direction, and the overhanging steel bars (21) at the two ends of the prefabricated superposed main beams (2) extend into overhanging wall limbs (11) of the cast-in-situ wall column unit (1); the side walls of the overhanging steel bars (21) positioned at the two sides of the long span area are provided with bearing grooves (23), and the bottom of the prefabricated superposed main beam (2) is supported by a beam lower support piece (91);
step 3, hoisting the prefabricated laminated secondary beams (3), and erecting two ends of the prefabricated laminated secondary beams on bearing grooves (23) of the prefabricated laminated main beams (2) on the left side and the right side of a long span region;
step 4, concrete pouring is carried out on the template of the cast-in-situ wall column unit (1), so that the cast-in-situ wall column unit (1) and the prefabricated superposed main girder (2) are connected into a whole;
step 5, removing the bearing of the beam lower support piece (91);
step 6, spraying sealing glue (92) at the joint of the prefabricated laminated main beam (2) and the prefabricated laminated secondary beam (3);
step 7, pouring high-strength non-shrinkage grouting material (93) in a gap between the prefabricated laminated main beam (2) and the prefabricated laminated secondary beam (3);
step 8, connecting a first supporting piece for supporting the ribbed support-free composite floor slab (4) on the cast-in-situ wall column unit (1) in the long span region, and simultaneously connecting a second supporting piece (95) for supporting the prefabricated basin-shaped floor slab (6) on the side wall of the prefabricated composite girder (2) in the short span region;
step 9, paving a ribbed support-free composite floor slab (4) in a long-span region, wherein first reinforcing steel bar parts (41) on two sides of the ribbed support-free composite floor slab are respectively supported on a first supporting piece and a prefabricated composite secondary beam (3) which are arranged on a cast-in-situ wall column unit (1);
step 10, mounting a second supporting member (95) on the side wall of the prefabricated superposed main beam (2) in the short span region, and supporting the prefabricated basin-shaped floor slab (6) on the second supporting member (95); third steel bar parts (61) on two sides of the prefabricated basin-shaped floor slab (6) are respectively erected on the prefabricated superposed main beams (2) on two sides of the short span region;
step 11, paving common superimposed sheets (5) on the residual areas of the short cross areas, wherein second reinforcing steel bar parts (51) on two sides of the common superimposed sheets (5) are respectively erected on prefabricated superimposed main beams (2) on two sides of the short cross areas;
step 12, arranging an electromechanical pipeline (7) on the surface formed by jointly paving the ribbed support-free composite floor slab (4), the common composite slab (5) and the prefabricated basin-shaped floor slab (6);
and 13, pouring concrete on the basis of the step 12 to form a concrete cast-in-place layer (8), and removing the first support and the second support (95).
7. The construction method of a floor support-free residential building structure as claimed in claim 6, wherein: the first supporting parts in the step 8 are a plurality of first bracket tools (941) which are arranged on the cast-in-situ wall column unit (1) through bolts and cross beams (942) which are arranged on the first bracket tools (941).
8. The construction method of a floor support-free residential building structure as claimed in claim 6, wherein: the second supporting parts (95) in the step 8 are a plurality of second bracket tools which are arranged on the prefabricated superposed main beam (2) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311306326.2A CN117027498B (en) | 2023-10-10 | 2023-10-10 | Residential building structure with floor system free of supporting and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311306326.2A CN117027498B (en) | 2023-10-10 | 2023-10-10 | Residential building structure with floor system free of supporting and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117027498A CN117027498A (en) | 2023-11-10 |
| CN117027498B true CN117027498B (en) | 2023-12-08 |
Family
ID=88639514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311306326.2A Active CN117027498B (en) | 2023-10-10 | 2023-10-10 | Residential building structure with floor system free of supporting and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117027498B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118461752B (en) * | 2024-07-12 | 2024-09-24 | 福建建工装配式建筑研究院有限公司 | Prefabricated cross beam connecting node structure and construction method thereof |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL35971A0 (en) * | 1970-01-19 | 1971-03-24 | Rich F | Prefabricated room parts for building |
| CA2741405A1 (en) * | 2010-12-30 | 2012-06-30 | Nikolay P. Tikhovskiy | Modular construction system and components and method |
| CN106639045A (en) * | 2016-12-29 | 2017-05-10 | 中通钢构股份有限公司 | Prefabricated assembly type steel plate-concrete composite shear wall structure system and construction method thereof |
| CN108612244A (en) * | 2016-12-13 | 2018-10-02 | 广西矿建集团有限公司 | Integral prefabricated floor and its construction method |
| CN109707173A (en) * | 2019-02-02 | 2019-05-03 | 福建工程学院 | Assembled overlaps beam slab installation auxiliary device and its construction method |
| CN109811878A (en) * | 2019-03-18 | 2019-05-28 | 江西万和建筑科技有限公司 | The shell integrated structure of the cast-in-place coinsiding die of assembled architecture and construction method |
| CN215053993U (en) * | 2021-04-16 | 2021-12-07 | 罗建月 | Prefabricated steel-concrete beam, column and floor combined house |
| CN114232843A (en) * | 2021-12-16 | 2022-03-25 | 中建五局第三建设有限公司 | Fully-assembled building and construction method thereof |
| CN114351855A (en) * | 2022-01-29 | 2022-04-15 | 辽宁中业科技有限公司 | Assembled full-precast concrete frame structure system and construction method |
| CN115142602A (en) * | 2022-07-21 | 2022-10-04 | 黑龙江华装清配建筑科技有限公司 | Full-assembly type prestress string-stretching floor system |
| CN115961719A (en) * | 2023-03-14 | 2023-04-14 | 中铁建设集团北京工程有限公司 | Prefabricated shear wall system and construction method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100058687A1 (en) * | 2008-09-05 | 2010-03-11 | Normand Bernard M | Method of constructing a multi-storey building using prefabricated modular panels |
| US8074414B2 (en) * | 2009-01-20 | 2011-12-13 | Skidmore Owings & Merrill Llp | Precast wall panels and method of erecting a high-rise building using the panels |
| CN102959162B (en) * | 2010-08-24 | 2015-03-18 | 英派尔科技开发有限公司 | Prefabricated wall panels |
| US8336276B2 (en) * | 2010-12-30 | 2012-12-25 | Nikolay P Tikhovskiy | Modular construction system and components and method |
-
2023
- 2023-10-10 CN CN202311306326.2A patent/CN117027498B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL35971A0 (en) * | 1970-01-19 | 1971-03-24 | Rich F | Prefabricated room parts for building |
| CA2741405A1 (en) * | 2010-12-30 | 2012-06-30 | Nikolay P. Tikhovskiy | Modular construction system and components and method |
| CN108612244A (en) * | 2016-12-13 | 2018-10-02 | 广西矿建集团有限公司 | Integral prefabricated floor and its construction method |
| CN106639045A (en) * | 2016-12-29 | 2017-05-10 | 中通钢构股份有限公司 | Prefabricated assembly type steel plate-concrete composite shear wall structure system and construction method thereof |
| CN109707173A (en) * | 2019-02-02 | 2019-05-03 | 福建工程学院 | Assembled overlaps beam slab installation auxiliary device and its construction method |
| CN109811878A (en) * | 2019-03-18 | 2019-05-28 | 江西万和建筑科技有限公司 | The shell integrated structure of the cast-in-place coinsiding die of assembled architecture and construction method |
| CN215053993U (en) * | 2021-04-16 | 2021-12-07 | 罗建月 | Prefabricated steel-concrete beam, column and floor combined house |
| CN114232843A (en) * | 2021-12-16 | 2022-03-25 | 中建五局第三建设有限公司 | Fully-assembled building and construction method thereof |
| CN114351855A (en) * | 2022-01-29 | 2022-04-15 | 辽宁中业科技有限公司 | Assembled full-precast concrete frame structure system and construction method |
| CN115142602A (en) * | 2022-07-21 | 2022-10-04 | 黑龙江华装清配建筑科技有限公司 | Full-assembly type prestress string-stretching floor system |
| CN115961719A (en) * | 2023-03-14 | 2023-04-14 | 中铁建设集团北京工程有限公司 | Prefabricated shear wall system and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117027498A (en) | 2023-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103397696B (en) | Shatter-proof, prefabricated steel bar girder shear wall Temperature Variation In Buildings of Mixed Structures thing | |
| US20010003234A1 (en) | Cast-in-place hybrid building system | |
| CN103388357B (en) | Shatter-proof, prefabricated steel tube shear Temperature Variation In Buildings of Mixed Structures thing | |
| CN203475598U (en) | Shock-proof prefabricated building of steel bar truss shearing wall composite structure | |
| CN112282115A (en) | Prefabricated assembled concrete wallboard and connecting structure and construction method thereof | |
| CN117027498B (en) | Residential building structure with floor system free of supporting and construction method thereof | |
| CN114232843B (en) | Fully assembled building and construction method thereof | |
| CN110409811B (en) | Non-dismantling forming column template containing reinforcement cage, template structure and building process | |
| CN102251699A (en) | Residential building system with cast-in-situ beam columns and prefabricated sandwich concrete wall panels and construction method | |
| CN108086488B (en) | Assembled frame shear structure wall staggered connection structure and assembling method | |
| CN108301545A (en) | A kind of big module overlapping contignation of the assembled with space truss temporary support | |
| CN111549951A (en) | Profiled steel assembled composite floor and construction method thereof | |
| CN113356349A (en) | Assembled frame structure system | |
| KR100712354B1 (en) | PC Integrating Construction Method of an Underground Parking Lot and PC Column-Beam Joint System for Long Span PC Beam therein | |
| CN108104310B (en) | Assembled frame shear structure column staggered connection structure and assembling method | |
| CN113356371A (en) | Construction method of assembled frame structure system | |
| CN203475599U (en) | Shock-proof prefabricated building of steel tube shearing wall composite structure | |
| CN218061030U (en) | Integrally-assembled reinforced concrete structure | |
| CN219732323U (en) | Novel fixing system for precast floor slab and superposed beam | |
| CN216713527U (en) | Assembled plane superstructure | |
| CN220318908U (en) | Assembly type reinforced concrete frame structure free of formwork | |
| CN220414634U (en) | Assembly floor without formwork | |
| CN115419190B (en) | Construction method of cast-in-place concrete combined structure of superposed wall | |
| CN220928370U (en) | Support-free composite floor slab | |
| CN113789925B (en) | Fast-assembling steel pipe concrete superposed shear wall staircase and installation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |