CN110761399A - Vertical splicing structure of prefabricated wall board and assembling method thereof - Google Patents
Vertical splicing structure of prefabricated wall board and assembling method thereof Download PDFInfo
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- CN110761399A CN110761399A CN201910953720.2A CN201910953720A CN110761399A CN 110761399 A CN110761399 A CN 110761399A CN 201910953720 A CN201910953720 A CN 201910953720A CN 110761399 A CN110761399 A CN 110761399A
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- prefabricated wall
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
- E04B1/04—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
- E04B1/04—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
- E04B1/043—Connections specially adapted therefor
- E04B1/046—Connections specially adapted therefor using reinforcement loops protruding from the elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/61—Connections for building structures in general of slab-shaped building elements with each other
- E04B1/6108—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together
- E04B1/612—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by means between frontal surfaces
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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
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
- E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
- E04C5/165—Coaxial connection by means of sleeves
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Panels For Use In Building Construction (AREA)
Abstract
The invention discloses a prefabricated wallboard, wherein no steel bar extends out of the top side end surface and the bottom side end surface of the prefabricated wallboard, at least one steel bar connecting sleeve is embedded in the top side end surface of the prefabricated wallboard, vertical steel bars are arranged in prefabricated wallboard concrete, the top ends of the vertical steel bars are fixedly connected with one end of the steel bar connecting sleeve, and a hollow corrugated pipe is embedded in the concrete at the bottom side of the prefabricated wallboard. The invention also discloses a vertical splicing structure of the prefabricated wall board, which comprises an upper prefabricated wall board and a lower prefabricated wall board, wherein the bottom side concrete of the upper prefabricated wall board is embedded with a hollow corrugated pipe, the top side concrete of the lower prefabricated wall board is embedded with a steel bar connecting sleeve, the upper prefabricated wall board is arranged above the lower prefabricated wall board and is connected through a grout anchor steel bar, one end of the grout anchor steel bar is connected with the steel bar connecting sleeve on the top side of the lower prefabricated wall board, and the other end of the grout anchor steel bar is arranged in the hollow corrugated pipe on the bottom side of the upper prefabricated wall. According to the scheme, no steel bar extends out from the top side and the bottom side of the prefabricated wall board, so that the prefabricated wall board is convenient to transport; the vertical splicing connection of the prefabricated wall boards is reliable, and the field wet operation is less.
Description
Technical Field
The invention belongs to the technical field of assembly type buildings, and particularly relates to a vertical splicing structure of prefabricated wallboards and an assembly method thereof.
Background
In the existing assembled integral building, the wallboard structure in the wallboard structure system is divided into an external wallboard and an internal wallboard. All are produced in factories and then assembled on construction sites. At present, the main connection modes of the wall board comprise a dry connection mode and a wet connection mode, and different connection modes correspond to different prefabricated wall board structures. To the connection of upper portion and lower part prefabricated wallboard, stretch out vertical stress bar in adopting lower part wallboard top side concrete among the prior art more, upper portion wallboard bottom side sets up grout sleeve or also stretches out vertical stress bar, two wallboard docks the back in upper portion and lower part, the vertical stress bar that the lower part wallboard upwards stretched out is connected with the grout sleeve of upper portion wallboard or with the vertical stress bar overlap joint that stretches out, links together two wallboards through grout or cast-in-place.
Regardless of which type of connection, prefabricated wallboard of present production all has two common problems: (1) the steel bars in the prefabricated wall board extend out more, so that the mold is complex in production, the process is complex and the demolding is troublesome; (2) the overhanging reinforcing bar of prefabricated wallboard is very inconvenient when transportation and hoist and mount, is bumped curved and brings the potential safety hazard easily, for the transportation convenience, bends usually after the production to some longer atress reinforcing bars, has arrived the job site and has adopted the instrument to break off with the fingers and thumb again and straighten, buckles the performance that can reduce the atress reinforcing bar like this repeatedly to probably reduce prefabricated wallboard connection structure's atress performance.
In summary, it is urgently needed to develop a prefabricated wall panel structure with no extending reinforcing steel bars on the top side and the bottom side, simple production mold, convenient transportation, high on-site assembly efficiency and reliable connection, and a vertical splicing structure and an assembly method of the prefabricated wall panel, so that a template is not needed to be erected during on-site construction, the construction efficiency is improved, reliable connection on mechanical properties between the wall panels can be realized, and the anti-seismic performance is improved.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a prefabricated wallboard structure to the prefabricated wallboard edge that exists among the solution prior art goes out the muscle and causes transportation and production mould technical problem such as complicated.
The invention also aims to solve the technical problems that: the utility model provides a vertical mosaic structure of prefabricated wallboard to solve the vertical mosaic structure atress performance of system wallboard that exists among the prior art unsatisfactory, the troublesome technical problem that waits of construction.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a prefabricated wallboard, the top side terminal surface and the bottom side terminal surface of prefabricated wallboard do not have the reinforcing bar to stretch out, the top side terminal surface pre-buried of prefabricated wallboard has a plurality of steel bar connection sleeve, set up vertical muscle in the prefabricated wallboard concrete, vertical muscle top with steel bar connection sleeve one end is connected fixedly, pre-buried cavity bellows in the prefabricated wallboard bottom side concrete.
Preferably, the lengths of the hollow corrugated pipe and the vertical ribs are not shorter than 700 mm.
Preferably, the corrugated pipe is further provided with a grouting hole communicated with the outside.
Preferably, double-faced steel bar net sheets are arranged in the prefabricated wall board, reinforcing stirrups are arranged between the double-faced steel bar net sheets, and the hollow corrugated pipe is located inside the reinforcing stirrups.
The invention also provides a vertical splicing structure of the prefabricated wall board, which comprises the prefabricated wall board, wherein the prefabricated wall board comprises an upper prefabricated wall board and a lower prefabricated wall board, the bottom side concrete of the upper prefabricated wall board is pre-embedded with a hollow corrugated pipe, the top side concrete of the lower prefabricated wall board is pre-embedded with a steel bar connecting sleeve, the upper prefabricated wall board is arranged above the lower prefabricated wall board and is connected with the lower prefabricated wall board through a grout anchor steel bar, one end of the grout anchor steel bar is connected with the steel bar connecting sleeve on the top side of the lower prefabricated wall board, and the other end of the grout anchor steel bar is arranged in the hollow corrugated pipe on the bottom side of the.
On the basis of the above embodiment, preferably, the top side of the steel bar connecting sleeve is flush with the top side end face of the prefabricated wall panel.
Preferably, the bottom side of the hollow corrugated pipe is flush with the bottom side end face of the prefabricated wall panel.
Preferably, go up prefabricated wallboard and prefabricated wallboard down and be the side fascia, from outer to interior outer decoration layer, heat preservation and bearing layer of including in proper order, the top side of outer decoration layer and heat preservation is higher than the bearing layer.
Preferably, a beam is further arranged between the upper prefabricated wall plate and the lower prefabricated wall plate, and the beam is a cast-in-place ring beam or a prefabricated beam or a hidden beam.
Preferably, go up prefabricated wallboard and still be provided with the floor down between the prefabricated wallboard, the floor overlap joint in the indoor side top of the bearing layer of prefabricated wallboard down, be provided with floor keyway or breach on the floor, prefabricated wallboard top side and floor keyway or breach department are provided with additional reinforcing bar and fill the concrete down, will floor and prefabricated wallboard link together down, thick liquid anchor reinforcing bar anchor in the cast in situ concrete.
Preferably, go up prefabricated wallboard and prefabricated wallboard down are interior wallboard, go up prefabricated wallboard and still be provided with two floors down between the prefabricated wallboard, the side of floor sets up floor keyway or step-like breach, two floor bottom side is pressed respectively and is located the both sides of prefabricated wallboard top side down, two set up additional steel bar and fill cast in situ concrete in the floor keyway or the breach of floor.
The invention also provides a construction method of the vertical splicing structure of the prefabricated wall panel, which comprises the following steps:
s1, hoisting and positioning the lower prefabricated wallboard, and arranging grout anchor steel bars on the steel bar connecting sleeves on the top side end face of the lower prefabricated wallboard;
s2, hoisting the upper prefabricated wallboard and placing the upper prefabricated wallboard on the top side of the lower prefabricated wallboard, and simultaneously inserting the grout anchor steel bar into the hollow corrugated pipe at the bottom side of the upper prefabricated wallboard;
and S3, pouring slurry into the hollow corrugated pipe to anchor the slurry anchor steel bars and the corrugated pipe together.
Preferably, when a floor slab is disposed between the upper prefabricated wall panel and the lower prefabricated wall panel, the method further includes, after the step S1 and before the step S2, a step of installing the floor slab: hoisting the floor slab, pressing the bottom side of one side of the floor slab on the top side of the lower prefabricated wall slab, and pouring concrete on the top side of the lower prefabricated wall slab to enable the concrete to be flush with the floor slab; and in the step S2, hoisting the prefabricated wall board and pressing the prefabricated wall board on the top side of the floor slab.
Preferably, a floor slab key groove or a step-shaped notch is formed in one side, where the floor slab is erected, of the lower prefabricated wall slab, in the step of installing the floor slab, an additional steel bar and a longitudinal steel bar are placed at the floor slab key groove or the step-shaped notch, a part of the additional steel bar is placed on the top side of the lower prefabricated wall slab, the longitudinal steel bar is parallel to the top side of the lower prefabricated wall slab, and then concrete is poured to fill the floor slab key groove or the step-shaped notch and the top side of.
Preferably, in step S2, before the positioning of the lower prefabricated wall panel, a cement slurry of about 20mm is applied to the predetermined lower wall panel positioning position of the floor slab to form a seat slurry layer, and the lower prefabricated wall panel is placed on the seat slurry layer.
The technical scheme of the invention has the beneficial technical effects that:
1. the top side and the bottom side of the prefabricated wall board in the scheme are not provided with the extending steel bars, the die is simple in production, the production efficiency is improved, the prefabricated wall board is more convenient to transport without the extending steel bars, and the potential safety hazard is reduced;
2. when two prefabricated wallboards are vertically spliced, the steel bar connecting sleeve on the top side end surface of the prefabricated wallboard at the lower part is connected with the vertical grout anchor steel bar, then the grout anchor steel bar is embedded into the hollow corrugated pipe on the bottom side of the prefabricated wallboard at the upper part, mortar is filled into the corrugated pipe to connect the grout anchor steel bar and the corrugated pipe into a whole, so that the vertical splicing structure of the prefabricated wallboards is reliable, the anti-seismic performance is good, the construction is convenient, the field wet operation is less, and the construction efficiency is higher.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention.
Fig. 1 is a first cross-sectional view of a vertical splice of prefabricated wall panels of example 1;
FIG. 2 is a cross-sectional view taken along line 1-1 of FIG. 1;
FIG. 3 is a cross-sectional view taken in the direction 2-2 of FIG. 1;
FIG. 4 is a schematic perspective view of the connection of a plurality of prefabricated wall panels of example 2 (hiding the upper prefabricated wall panel);
FIG. 5 is a cross-sectional view of the joining of a plurality of prefabricated wall panels of example 2;
figure 6 is a vertical cross-sectional view of the prefabricated wall panel of examples 1 and 2;
fig. 7 is a horizontal cross-sectional view of the prefabricated wall panel of examples 1 and 2;
reference numerals: wherein: 1-upper prefabricated wall plate, 101-bearing layer, 102-insulating layer, 103-external decoration layer, 2-lower prefabricated wall plate, 3-steel bar connecting sleeve, 4-hollow corrugated pipe, 5-grout steel bar, 6-vertical steel bar, 7-reinforcing stirrup, 8-steel bar net piece, 9-floor slab, 10-grout layer and 12-additional steel bar.
Detailed Description
The present invention will now be described in detail with reference to the drawings, which are given by way of illustration and explanation only and should not be construed to limit the scope of the present invention in any way. Furthermore, features from embodiments in this document and from different embodiments may be combined accordingly by a person skilled in the art from the description in this document.
Example 1
Referring to the vertical cross-sectional view shown in fig. 6, the prefabricated wall panel structure in this embodiment has no protruding steel bars on the top end surface and the bottom end surface, two or more steel bar connecting sleeves 3 are embedded in the top end surface, hollow corrugated pipes 4 with the same number as the steel bar connecting sleeves 3 are embedded in the bottom concrete, and the top side of the steel bar connecting sleeve 3 and the bottom side of the hollow corrugated pipe 4 are flush with the top side and the bottom side of the prefabricated wall panel, respectively. Set up vertical muscle 6 in the prefabricated wallboard concrete, 6 tops of vertical muscle are connected fixedly with 3 one end of steel bar connection sleeve. The prefabricated wall panel in the embodiment can be used as a stressed member of a wall panel system or a shear wall system, and can also be used as an unstressed member of an inner partition wall. In this embodiment, the length of the hollow corrugated pipe 4 and the vertical rib 6 is 800mm, and the height of the prefabricated wall panel is 300 mm.
Because the top side and the bottom side of the prefabricated wall board do not need to extend out of the reinforcing steel bars, the production mold is simplified, and the problem that the extending-out reinforcing steel bars are easily bent in the transportation process is also avoided. Through setting up the bellows in the bottom side, the top side sets up steel bar connection sleeve 3, when upper and lower two prefabricated wallboard vertical butt joints, set up thick liquid anchor reinforcing bar 5 on the steel bar connection sleeve 3 on the prefabricated wallboard top side of lower part earlier, then insert thick liquid anchor reinforcing bar 5 in the bellows of prefabricated wallboard bottom side of upper portion, the grout anchor reinforcing bar 5 and bellows are connected to the rethread pouring bellows. The existing assembly is convenient, the connection is reliable, and the construction efficiency is high.
On the basis of the embodiment, in other embodiments, the prefabricated wall panel is an external wall panel, and the outer side of the concrete layer is further sequentially provided with an insulating layer 103, an external decoration layer 103, a steel bar connecting sleeve 3 and a hollow corrugated pipe 4, which are pre-embedded in concrete on the top side and the bottom side of the bearing layer 101.
Referring to the schematic diagram 7, a double-faced steel mesh sheet 8 is arranged in the prefabricated wall panel of this embodiment, an open-ended reinforcement stirrup 7 is arranged between the double-faced steel mesh sheets 8, and the hollow corrugated pipe 4 is located inside the reinforcement stirrup 7. Through setting up the reinforcing bar, can strengthen the intensity of pre-buried bellows department concrete, avoid this department fracture, improve the wholeness ability of prefabricated wallboard.
Referring to the schematic diagram 1, the vertical splicing structure of the prefabricated wall panel in the embodiment includes an upper prefabricated wall panel 1 and a lower prefabricated wall panel 2, wherein a plurality of hollow corrugated pipes 4 are pre-embedded in the bottom concrete of the upper prefabricated wall panel 1, and the bottom sides of the hollow corrugated pipes 4 are flush with the bottom end face of the lower prefabricated wall panel 2. A plurality of steel bar connecting sleeves 3 are pre-embedded in concrete on the top side of the lower prefabricated wallboard 2, the top sides of the steel bar connecting sleeves 3 are flush with the end faces on the top side of the lower prefabricated wallboard 2, and the steel bar connecting sleeves 3 are sleeves internally provided with straight threads. Go up prefabricated wallboard 1 and arrange the top of prefabricated wallboard 2 down in and connect through thick liquid anchor reinforcing bar 5, thick liquid anchor reinforcing bar 5 one end has the screw thread to be connected with the steel bar connection sleeve 3 of prefabricated wallboard 2 top side down, the other end is arranged in inside the hollow bellows 4 of 1 bottom sides of prefabricated wallboard. Go up and be provided with the grout hole with hollow bellows 4 intercommunication on prefabricated wallboard 1, pour into thick liquids to hollow bellows 4 through the grout hole for thick liquid anchor reinforcing bar 5 and hollow bellows 4 link together.
On the basis of the embodiment, in other modified embodiments, see schematic diagram 1, be provided with a plurality of vertical muscle 6 with steel bar connection sleeve 3 the same quantity in the concrete of prefabricated wallboard 2 down, vertical muscle 6 top is connected fixedly with steel bar connection sleeve 3 one end. Set up like this, vertical muscle 6 has realized being connected through thick liquid anchor steel bar 5 in steel bar connection sleeve 3 and the prefabricated wallboard in upper portion, can guarantee continuity and joint strength of reinforcing bar atress between upper and lower prefabricated wallboard 2.
The structure of the upper prefabricated wall panel 1 in this embodiment is the same as that of the lower prefabricated wall panel 2, see the horizontal cross-sectional view of the vertical splicing structure of the prefabricated wall panels shown in the attached drawing 2, the double-sided reinforcing mesh sheets 8 are arranged inside the upper prefabricated wall panel 1 and connected together through stirrups, the hollow corrugated pipe 4 is pre-embedded inside the upper prefabricated wall panel 1, and the grout anchor reinforcing steel bars 5 are arranged inside the hollow corrugated pipe 4. In order to improve the concrete strength of the hollow corrugated pipe 4, a reinforcing stirrup 7 is arranged, the reinforcing stirrup 7 is an additional C-shaped opening stirrup, two ends of the reinforcing stirrup 7 are respectively connected with a double-faced reinforcing mesh piece 8, and the hollow corrugated pipe 4 is arranged inside the C-shaped opening of the reinforcing stirrup 7.
Referring to fig. 3, the upper prefabricated wall panel 1 and the lower prefabricated wall panel 2 in this embodiment are inner wall panels, 2 floor slabs 9 are further disposed between the upper prefabricated wall panel 1 and the lower prefabricated wall panel 2, the 2 floor slabs 9 are respectively lapped on two side edges of the top end of the lower prefabricated wall panel 2, a common step-shaped gap is disposed at one end of the lapped floor slab 9 and one end of the lower prefabricated wall panel 2, and an additional steel bar 12 is disposed between the two floor slabs 9. Additional reinforcement 12 is the width and equals approximately to the stirrup that remains silent and many vertical bars of step-like breach, and wherein 2 floor 9's breach department all is provided with the stirrup that remains silent, and the inside 4 vertical bars that are provided with in four corners of stirrup that remains silent, and between 2 floor 9, 2 top sides of prefabricated wallboard department also are provided with 4 vertical bars down. Cast-in-place concrete is filled between the 2 floor slabs 9, and the floor slabs 9 and the lower prefabricated wall panel 2 are connected together. In other this embodiments, the end that floor 9 set up prefabricated wallboard 2 down also can set up to forms such as floor 9 keyway, only need pour a small amount of concrete in floor 9 keyway and prefabricated wallboard 2 top side down like this and accomplished reliable connection between wallboard and the floor 9, and wet operation is few now, easy operation, and the efficiency of construction is high.
The construction method of the vertical splicing structure of the prefabricated wall panel in the embodiment comprises the following steps:
s1, hoisting and positioning the lower prefabricated wall plate 2, and sequentially connecting and arranging grout anchor steel bars 5 in a plurality of steel bar connecting sleeves 3 on the top side end face of the lower prefabricated wall plate 2;
s2, hoisting the floor slab 9, pressing the bottom side of one side of the floor slab 9 on the top side of the lower prefabricated wall panel 2, sequentially completing the installation of 2 floor slabs 9, then placing closed stirrups and longitudinal reinforcements at the step-shaped notches of the floor slab 9, and pouring concrete to fill the step-shaped notches of the floor slab 9 and the top side of the lower prefabricated wall panel 2;
s3, smearing cement slurry with the thickness of about 20mm at the preset lower wallboard positioning position of the floor slab 9 to form a seat slurry layer 10, and placing the lower prefabricated wallboard 2 on the seat slurry layer 10; hoisting the upper prefabricated wall plate 1 and pressing the upper prefabricated wall plate 1 on the seat slurry layer 10 on the top side of the floor slab 9, and simultaneously aligning and inserting a plurality of slurry anchor steel bars 5 into the hollow corrugated pipe 4 at the bottom side of the upper prefabricated wall plate 1;
and S4, pouring slurry into the hollow corrugated pipe 4 through the grouting holes to anchor the slurry anchor steel bars 5 and the corrugated pipe together.
Example 2
Referring to fig. 4, the upper prefabricated wall panel 1 and the lower prefabricated wall panel 2 in this embodiment have the same structure and are both external wall panels, and sequentially include an internal bearing layer 101, an intermediate insulating layer 103 and an external decoration layer 103 from inside to outside, the top sides of the external decoration layer 103 and the insulating layer 103 are higher than the bearing layer 101, and the bottom sides of the external decoration layer 103 and the insulating layer 103 are flush with the bottom side of the bearing layer 101. A plurality of hollow corrugated pipes 4 are pre-embedded in concrete at the bottom side of a bearing layer 101 of an upper prefabricated wallboard 1, and a plurality of steel bar connecting sleeves 3 are pre-embedded on the end surface at the top side of the bearing layer 101 of a lower prefabricated wallboard 2. Referring to the schematic diagrams 4 and 5, the bottom side of one end of the floor slab 9 is placed on the top side of the bearing layer 101 of the lower prefabricated wall panel 2, a key groove 9 of the floor slab 9 is formed in one end of the floor slab 9, a steel bar anchored in the prefabricated concrete of the floor slab 9 extends out of the key groove 9 of the floor slab, cast-in-place concrete is poured after additional steel bars 12 are arranged on the key groove of the floor slab 9 and the top side of the bearing layer 101 of the lower prefabricated wall panel 2, and the floor slab 9 and the lower prefabricated. Because the top sides of the outer decoration layer 103 and the heat insulation layer 103 are higher than the top side of the bearing layer 101, when cast-in-place concrete is poured, the outer decoration layer 103 and the heat insulation layer 103 can serve as outer templates, so that templates do not need to be erected, the field construction amount is reduced, and the construction efficiency is improved.
In other embodiments, between upper prefabricated wall panel 1 and lower prefabricated wall panel 2 are disposed precast girders on which floor slab 9 rests.
Referring to the schematic diagram 4, the top end surface of the lower prefabricated wall panel 2 is provided with a plurality of steel bar connectors, each steel bar connector is a straight threaded steel bar connecting sleeve 3, one end of a grout anchor steel bar 5 is connected in each straight threaded steel bar connecting sleeve 3, then the grout anchor steel bar 5 is placed in a hollow corrugated pipe 4 on the bottom side of the bearing layer 101 of the upper prefabricated wall panel 1, and grout is poured to anchor the grout anchor steel bar 5 in the hollow corrugated pipe 4.
With continued reference to fig. 4 and 5, the method of assembling the vertical connecting structure of prefabricated wall panels in this embodiment is similar to that of embodiment 1, except that:
s2, hoisting the floor slab 9, and pressing the bottom side of the end, provided with the floor slab 9 key groove, of the floor slab 9 on the top side of the bearing layer 101 of the lower prefabricated wall panel 2; placing additional steel bars 12 at the key groove of the floor slab 9 and the top side of the lower prefabricated wall plate 2, and then pouring concrete to fill the key groove of the floor slab 9 and the top side of the lower prefabricated wall plate 2 until the cast-in-place concrete is flush with the heat insulation layer 103;
the foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The prefabricated wall board is characterized in that no steel bar extends out of the top side end face and the bottom side end face of the prefabricated wall board, a plurality of steel bar connecting sleeves are pre-embedded in the top side end face of the prefabricated wall board, vertical steel bars are arranged in prefabricated wall board concrete, the top ends of the vertical steel bars are fixedly connected with one ends of the steel bar connecting sleeves, and hollow corrugated pipes are pre-embedded in the concrete at the bottom side of the prefabricated wall board.
2. A vertical splicing structure of prefabricated wall panels, comprising the prefabricated wall panel of claim 1, wherein the prefabricated wall panel comprises an upper prefabricated wall panel and a lower prefabricated wall panel, the upper prefabricated wall panel is arranged above the lower prefabricated wall panel and is connected through grout anchor steel bars, one end of the grout anchor steel bars is connected with a steel bar connecting sleeve on the top side of the lower prefabricated wall panel, and the other end of the grout anchor steel bars is arranged in a hollow corrugated pipe on the bottom side of the upper prefabricated wall panel.
3. The vertical splice of prefabricated wall panels of claim 2 wherein the top side of said rebar junction sleeves are flush with the top side end faces of the prefabricated wall panels.
4. The vertical splice of prefabricated wall panels of claim 2 wherein the bottom side of said hollow corrugated tubing is flush with the bottom side end face of the prefabricated wall panel.
5. The vertical splicing structure of prefabricated wall panels according to claim 2, wherein the upper prefabricated wall panel and the lower prefabricated wall panel are external wall panels and sequentially comprise an external decoration layer, an insulating layer and a bearing layer from outside to inside, and the top sides of the external decoration layer and the insulating layer are higher than the bearing layer.
6. The vertical splicing structure of prefabricated wall panels as claimed in any one of claims 2 to 5, wherein a floor slab is further disposed between the upper prefabricated wall panel and the lower prefabricated wall panel, the floor slab is lapped on the top end of the indoor side of the bearing layer of the lower prefabricated wall panel, a floor slab key groove or a step-shaped gap is disposed on the floor slab, and additional steel bars and concrete are disposed on the top side of the lower prefabricated wall panel and at the floor slab key groove or gap.
7. The vertical splicing structure of prefabricated wall panels as claimed in any one of claims 2 to 5, wherein the upper prefabricated wall panel and the lower prefabricated wall panel are inner wall panels, two floor slabs are further arranged between the upper prefabricated wall panel and the lower prefabricated wall panel, a floor slab key groove or a step-shaped notch is arranged on the side edge of each floor slab, the bottom sides of the two floor slabs are respectively pressed on the two sides of the top side of the lower prefabricated wall panel, and an additional reinforcing bar is arranged between the two floor slabs and filled with concrete.
8. A method of constructing a vertical splice of prefabricated wall panels according to any one of claims 2 to 7, comprising the steps of:
s1, hoisting and positioning the lower prefabricated wallboard, and arranging grout anchor steel bars on the steel bar connecting sleeves on the top side end face of the lower prefabricated wallboard;
s2, hoisting the upper prefabricated wallboard and placing the upper prefabricated wallboard on the top side of the lower prefabricated wallboard, and simultaneously inserting the grout anchor steel bar into the hollow corrugated pipe at the bottom side of the upper prefabricated wallboard;
and S3, pouring slurry into the hollow corrugated pipe to anchor the slurry anchor steel bars and the corrugated pipe together.
9. The method of constructing a vertical splicing structure of prefabricated wall panels according to claim 8, wherein when a floor slab is disposed between the upper prefabricated wall panel and the lower prefabricated wall panel, the step of installing the floor slab further comprises, after the step of S1 and before the step of S2: hoisting the floor slab, pressing the bottom side of one side of the floor slab on the top side of the lower prefabricated wall slab, and pouring concrete on the top side of the lower prefabricated wall slab to enable the concrete to be flush with the floor slab; and in the step S2, hoisting the prefabricated wall board and pressing the prefabricated wall board on the top side of the floor slab.
10. The construction method of the vertical splicing structure of the prefabricated wall panels according to claim 9, wherein a floor slab key groove or a step-shaped notch is formed in one side of the lower prefabricated wall panel where the floor slab is erected, in the step of installing the floor slab, an additional steel bar and a longitudinal steel bar are placed at the floor slab key groove or the step-shaped notch, a part of the additional steel bar is placed on the top side of the lower prefabricated wall panel, the longitudinal steel bar is parallel to the top side of the lower prefabricated wall panel, and then concrete is poured to fill the floor slab key groove or the step-shaped notch and the top side of the lower.
Priority Applications (1)
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