CN112780007A - Fully-prefabricated concrete shear wall and construction method thereof - Google Patents
Fully-prefabricated concrete shear wall and construction method thereof Download PDFInfo
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- CN112780007A CN112780007A CN202110023811.3A CN202110023811A CN112780007A CN 112780007 A CN112780007 A CN 112780007A CN 202110023811 A CN202110023811 A CN 202110023811A CN 112780007 A CN112780007 A CN 112780007A
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- 239000004567 concrete Substances 0.000 title claims abstract description 46
- 238000010276 construction Methods 0.000 title claims abstract description 20
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 78
- 210000001503 joint Anatomy 0.000 claims abstract description 74
- 239000011178 precast concrete Substances 0.000 claims abstract description 38
- 229910000831 Steel Inorganic materials 0.000 claims description 46
- 239000010959 steel Substances 0.000 claims description 46
- 239000000463 material Substances 0.000 claims description 15
- 230000002787 reinforcement Effects 0.000 claims description 12
- 239000011440 grout Substances 0.000 claims description 5
- 239000004570 mortar (masonry) Substances 0.000 claims description 5
- 238000009417 prefabrication Methods 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 7
- 230000003014 reinforcing effect Effects 0.000 description 34
- 210000003205 muscle Anatomy 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 230000002708 enhancing effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
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Classifications
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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
-
- 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
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
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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
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4114—Elements with sockets
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/06—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced
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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
-
- 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
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B2001/4192—Connecting devices specially adapted for embedding in concrete or masonry attached to concrete reinforcing elements, e.g. rods or wires
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Load-Bearing And Curtain Walls (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention discloses a fully-precast concrete shear wall and a construction method thereof, wherein the fully-precast concrete shear wall comprises a plurality of layers of fully-precast shear wall boards which are butted and fixed; the fully-prefabricated shear wall plate comprises a prefabricated concrete body and a plurality of vertical butt-joint reinforcing steel bars distributed through the prefabricated concrete body, wherein a reinforcing steel bar butt-joint assembly is arranged below the interior of the prefabricated concrete body, the top ends of the vertical butt-joint reinforcing steel bars extend out of the upper surface of the prefabricated concrete body, and the bottom ends of the vertical butt-joint reinforcing steel bars are inserted into the reinforcing steel bar butt-joint assembly; when the upper and lower two-layer full-precast shear wall board is mutually butted and fixed, the top end of the vertical butt joint reinforcing steel bar of the lower layer is inserted into the reinforcing steel bar butt joint assembly of the upper layer and is fixedly butted with the bottom end of the vertical butt joint reinforcing steel bar of the upper layer. The invention can realize the full prefabrication of the shear wall component, greatly reduces the post-cast concrete operation on site and improves the installation quality and efficiency of the butt joint of the reinforcing steel bars.
Description
Technical Field
The invention belongs to the technical field of prefabricated concrete structures, and particularly relates to a fully-prefabricated concrete shear wall and a construction method thereof.
Background
At present, an assembled concrete shear wall structure mainly follows the concept of equal cast-in-place, and in order to realize the equal structure of the traditional cast-in-place structure, the edge member of an important stress part of the shear wall is often required to be in a form of post-cast concrete in a construction site, and the shear wall is only prefabricated on a wall body part of a vertically distributed reinforcing steel bar area, so that the prefabrication efficiency is greatly reduced, meanwhile, a large amount of wet operation of cast-in-place concrete is brought, the construction quality is not guaranteed, and the structural performance is further influenced.
In addition, the vertically distributed steel bars of the prefabricated part of the shear wall are connected by a steel sleeve grouting connection method capable of realizing butt joint connection of the steel bars, and the method has high requirements on material performance, factory prefabrication and field installation quality and quality of workers, so that the problem of grouting quality of the steel sleeve is frequent.
Therefore, in order to promote scientific and healthy development of an assembled concrete shear wall structure, a new fully precast concrete shear wall technology is urgently needed to be sought, full prefabrication of shear wall components is realized, post-cast concrete operation on site is greatly reduced, the technical advantages of precast concrete are fully exerted, and the connection quality and the integral performance of the components are ensured; meanwhile, a new steel bar butt joint connection method needs to be explored to avoid the technical problems of high precision requirement and difficult installation and construction of the steel bar sleeve grouting connection method, and improve the prefabrication and installation efficiency.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a fully-precast concrete shear wall and a construction method thereof, so that the full prefabrication of shear wall components is realized, the post-cast concrete operation on site is greatly reduced, and the installation quality and efficiency of the butt joint of the reinforcing steel bars are improved.
The invention provides the following technical scheme:
a fully-precast concrete shear wall comprises a plurality of layers of fully-precast shear wall boards which are fixedly butted;
the fully-prefabricated shear wall plate comprises a prefabricated concrete body and a plurality of vertical butt-joint reinforcing steel bars distributed through the prefabricated concrete body, wherein a reinforcing steel bar butt-joint assembly is arranged below the interior of the prefabricated concrete body, the top ends of the vertical butt-joint reinforcing steel bars extend out of the upper surface of the prefabricated concrete body, and the bottom ends of the vertical butt-joint reinforcing steel bars are inserted into the reinforcing steel bar butt-joint assembly;
when the upper and lower two-layer full-precast shear wall board is mutually butted and fixed, the top end of the vertical butt joint reinforcing steel bar of the lower layer is inserted into the reinforcing steel bar butt joint assembly of the upper layer and is fixedly butted with the bottom end of the vertical butt joint reinforcing steel bar of the upper layer.
Preferably, the vertical butt-jointed reinforcing steel bars are upset reinforcing steel bars.
Preferably, the vertical butt-joint reinforcing steel bars comprise middle vertical butt-joint reinforcing steel bars and edge vertical butt-joint reinforcing steel bars, the edge vertical butt-joint reinforcing steel bars are distributed at two ends of the precast concrete body, the middle vertical butt-joint reinforcing steel bars are distributed at the middle of the precast concrete body, and a plurality of layers of uniformly distributed horizontal stirrups are arranged on the periphery of the edge vertical butt-joint reinforcing steel bars.
Preferably, still be equipped with a plurality of vertical reinforcing bars in the full precast shear wall board, vertical reinforcing bar and the vertical butt joint reinforcing bar evenly distributed in middle part.
Preferably, the connection mode of the upper and lower layers of the middle vertical butt joint steel bars is one of root-by-root connection, single-row connection or partial connection.
Preferably, the steel bar butt joint assembly comprises a corrugated pipe and a steel bar cage arranged on the periphery of the corrugated pipe, and the corrugated pipe and the steel bar cage are both pre-embedded in the precast concrete body; and the vertical butt-joint reinforcing steel bars at the upper layer and the lower layer are respectively inserted from the upper end and the lower end of the corrugated pipe for butt-joint fixation, and grouting materials are filled in the corrugated pipe during butt-joint fixation.
Preferably, the steel reinforcement cage comprises a rib steel bar and a spiral steel bar which are fixedly connected, the rib steel bar and the vertical butt-joint steel bar are arranged in parallel, and the spiral steel bar is spirally wound on the periphery of the corrugated pipe.
Preferably, a mortar layer is arranged between the upper and lower layers of the fully-prefabricated shear wall panels.
Preferably, the fully-prefabricated shear wall panel further comprises horizontal steel bars uniformly distributed in the prefabricated concrete body.
A construction method of a fully precast concrete shear wall comprises the following steps:
producing a plurality of layers of fully prefabricated shear wall panels;
arranging a mortar layer on the top surface of the lower-layer fully-prefabricated shear wall plate, and installing the upper-layer fully-prefabricated shear wall plate in place, so that the top end of the vertical butt joint steel bar of the lower-layer fully-prefabricated shear wall plate is inserted into the steel bar butt joint assembly of the upper-layer fully-prefabricated shear wall plate;
pouring grouting materials into the steel bar butt joint assembly, enabling the bottom end of the upper-layer vertical butt joint steel bar to be in butt joint with the top end of the lower-layer vertical butt joint steel bar to be fixed, forming a vertical steel bar grout anchor butt joint, and enabling the upper layer of fully-prefabricated shear wall plate and the lower layer of fully-prefabricated shear wall plate to be in butt joint to form a whole;
and repeating the steps, and butting and fixing a plurality of layers of fully-prefabricated shear wall boards to complete the construction of the fully-prefabricated concrete shear wall.
Compared with the prior art, the invention has the beneficial effects that:
(1) the fully-prefabricated concrete shear wall provided by the invention comprises a plurality of layers of fully-prefabricated shear wall boards which are fixedly butted, the prefabrication quality can be ensured, the prefabrication efficiency is high, the post-cast concrete operation on site is greatly reduced, and the site construction quality and efficiency are obviously improved;
(2) the fully-prefabricated shear wall panel comprises a prefabricated concrete body and a plurality of vertical butt-joint reinforcing steel bars distributed through the prefabricated concrete body, wherein a reinforcing steel bar butt-joint assembly is arranged below the interior of the prefabricated concrete body, the top ends of the vertical butt-joint reinforcing steel bars extend out of the upper surface of the prefabricated concrete body, the bottom ends of the vertical butt-joint reinforcing steel bars are inserted into the reinforcing steel bar butt-joint assembly, when an upper layer of fully-prefabricated shear wall panel and a lower layer of fully-prefabricated shear wall panel are mutually butted and fixed, the top ends of the vertical butt-joint reinforcing steel bars at the lower layer are inserted into the reinforcing steel bar butt-joint assembly at the upper layer and are butted and fixed with the bottom ends of the vertical;
(3) the fully-precast concrete shear wall obtained by construction has reliable performance, reduces post-cast concrete operation on site, has obvious technical and economic benefits, and has large-scale popularization and application prospects.
Drawings
FIG. 1 is a schematic structural view of a fully precast concrete shear wall;
FIG. 2 is a schematic view of a portion of the construction of a fully prefabricated shear wall panel of example 1;
FIG. 3 is a schematic view of a portion of the construction of a fully prefabricated shear wall panel of example 2;
fig. 4 is a schematic structural view of a reinforcing bar docking assembly;
FIG. 5 is a schematic structural view of a reinforcement cage;
labeled as: 1. the upper layer is a fully prefabricated shear wall plate; 2. a lower layer of fully prefabricated shear wall panel; 3. vertically butting the edges with reinforcing steel bars; 4. vertically butting reinforcing steel bars at the middle part; 5. horizontal stirrups; 6. vertical reinforcing steel bars; 7. horizontal reinforcing steel bars; 8. a bellows; 9. reinforcing steel bars of the upper bars; 10. a spiral rib; 11. a base slurry layer; 12. grouting material; 13. a steel bar butt joint component; 14. and vertically butting the reinforcing steel bars.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
It should be noted that in the description of the present invention, the terms "front", "rear", "left", "right", "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention but do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Example 1
As shown in fig. 1, a fully precast concrete shear wall includes a plurality of layers of fully precast shear wall panels fixed in butt joint; the fully-prefabricated shear wall plate comprises a prefabricated concrete body and a plurality of vertical butt-joint reinforcing steel bars 14 distributed through the prefabricated concrete body, wherein a reinforcing steel bar butt-joint assembly 13 is arranged below the interior of the prefabricated concrete body, the top ends of the vertical butt-joint reinforcing steel bars 14 extend out of the upper surface of the prefabricated concrete body, and the bottom ends of the vertical butt-joint reinforcing steel bars are inserted into the reinforcing steel bar butt-joint assembly 13; be equipped with the grout layer 11 between the full precast shear force wallboard 1 of upper strata and the full precast shear force wallboard 2 of lower floor, when the full precast shear force wallboard 1 of upper strata and the full precast shear force wallboard 2 of lower floor docked fixedly each other, the top of the vertical butt joint reinforcing bar of lower floor inserts in the reinforcing bar butt joint subassembly of upper strata to it is fixed with the bottom butt joint of the vertical butt joint reinforcing bar of upper strata.
As shown in fig. 1 and 2, the vertical butt-jointed reinforcing bars 14 are upset reinforcing bars, so that the length of the anchor of the reinforced concrete can be reduced, and materials are saved. Vertical butt joint reinforcing bar 14 includes vertical butt joint reinforcing bar 4 in middle part and the vertical butt joint reinforcing bar 3 in edge, and the vertical butt joint reinforcing bar 3 in edge distributes in the both ends of precast concrete body, and the vertical butt joint reinforcing bar 4 in middle part distributes in the middle part of precast concrete body. The periphery of the edge vertical butt-joint reinforcing steel bar 3 is provided with a plurality of layers of horizontal stirrups 5 which are uniformly distributed, and the effects of restraining concrete and enhancing structural integrity are achieved.
As shown in fig. 2, the connection mode of the upper and lower two-layer middle vertical butt-joint reinforcing steel bars 14 is one of connection one by one, single connection or partial connection, and one connection mode can be selected according to conditions, and the connection mode in this embodiment is one by one, so that on the basis of ensuring the overall performance, the number of joints is reduced, the material is saved, and the installation efficiency is improved.
As shown in fig. 1, 2, 4 and 5, the steel bar butt joint assembly 13 includes a corrugated pipe 8 and a steel bar cage arranged at the periphery of the corrugated pipe 8, and both the corrugated pipe 8 and the steel bar cage are pre-embedded in the precast concrete body; vertical butt joint reinforcing steel bars 14 of an upper layer and a lower layer are inserted from the upper end and the lower end of the corrugated pipe 8 respectively for butt joint fixing, and grouting materials 12 are filled in the corrugated pipe 8 during butt joint fixing. The steel reinforcement cage includes fixed connection's group's strip reinforcing bar 9 and spiral muscle 10, group's strip reinforcing bar 9 and vertical butt joint reinforcing bar 14 parallel arrangement, and spiral muscle 10 is the heliciform and coils in 8 peripheries of bellows. Adopt pre-buried bellows 8 as the material of staying the hole, economy and convenience adopt the steel reinforcement cage that group's bar reinforcement 9 and spiral muscle 10 constitute, simple manufacture to can realize reinforcing bar butt joint's continuous biography power, adopt spiral muscle 10 can restraint the concrete, improve and connect the ductility.
As shown in fig. 1, the fully prefabricated shear wall panel further includes horizontal reinforcing bars 7 uniformly distributed in the precast concrete body, having an effect of enhancing structural strength.
The embodiment also provides a construction method of the fully precast concrete shear wall, which comprises the following steps:
1) producing a plurality of layers of the fully prefabricated shear wall panels near a factory or a construction site;
2) arranging a mortar layer 11 on the top surface of the lower-layer fully-prefabricated shear wall plate 2, and installing the upper-layer fully-prefabricated shear wall plate 1 in place, so that the top ends of vertical butt-joint reinforcing steel bars of the lower-layer fully-prefabricated shear wall plate 2 are inserted into a reinforcing steel bar butt-joint assembly 13 of the upper-layer fully-prefabricated shear wall plate 1, specifically, into a corrugated pipe 8;
3) pouring a high-strength grouting material 12 into the corrugated pipe 8, so that the bottom end of the upper-layer vertical butt joint reinforcing steel bar 14 is in butt joint with the top end of the lower-layer vertical butt joint reinforcing steel bar to form a vertical reinforcing steel bar grout anchor butt joint, and the upper layer and the lower layer of fully-prefabricated shear wall boards are in butt joint to form a whole;
4) and repeating the steps, and butting and fixing a plurality of layers of fully-prefabricated shear wall boards to complete the construction of the fully-prefabricated concrete shear wall.
Example 2
As shown in fig. 1, a fully precast concrete shear wall includes a plurality of layers of fully precast shear wall panels fixed in butt joint; the fully-prefabricated shear wall plate comprises a prefabricated concrete body and a plurality of vertical butt-joint reinforcing steel bars 14 distributed through the prefabricated concrete body, wherein a reinforcing steel bar butt-joint assembly 13 is arranged below the interior of the prefabricated concrete body, the top ends of the vertical butt-joint reinforcing steel bars 14 extend out of the upper surface of the prefabricated concrete body, and the bottom ends of the vertical butt-joint reinforcing steel bars are inserted into the reinforcing steel bar butt-joint assembly 13; be equipped with the grout layer 11 between the full precast shear force wallboard 1 of upper strata and the full precast shear force wallboard 2 of lower floor, when the full precast shear force wallboard 1 of upper strata and the full precast shear force wallboard 2 of lower floor docked fixedly each other, the top of the vertical butt joint reinforcing bar of lower floor inserts in the reinforcing bar butt joint subassembly of upper strata to it is fixed with the bottom butt joint of the vertical butt joint reinforcing bar of upper strata.
As shown in fig. 1 and 3, the vertical butt-jointed reinforcing bars 14 are upset reinforcing bars, so that the length of the anchor of the reinforced concrete can be reduced, and materials are saved. Vertical butt joint reinforcing bar 14 includes vertical butt joint reinforcing bar 4 in middle part and the vertical butt joint reinforcing bar 3 in edge, and the vertical butt joint reinforcing bar 3 in edge distributes in the both ends of precast concrete body, and the vertical butt joint reinforcing bar 4 in middle part distributes in the middle part of precast concrete body. The periphery of the edge vertical butt-joint reinforcing steel bar 3 is provided with a plurality of layers of horizontal stirrups 5 which are uniformly distributed, and the effects of restraining concrete and enhancing structural integrity are achieved.
As shown in fig. 3, a plurality of vertical steel bars are further arranged in the fully-prefabricated shear wall panel, and the vertical steel bars and the middle vertical butt-joint steel bars are uniformly distributed. The connection mode of the upper and lower two-layer middle vertical butt joint reinforcing steel bars 14 is partial connection, so that the number of joints is reduced on the basis of ensuring the overall performance, the material is saved, and the installation efficiency is improved.
As shown in fig. 3, 4 and 5, the steel bar butt joint assembly 13 includes a corrugated pipe 8 and a steel bar cage arranged at the periphery of the corrugated pipe 8, and both the corrugated pipe 8 and the steel bar cage are pre-embedded in the precast concrete body; vertical butt joint reinforcing steel bars 14 of an upper layer and a lower layer are inserted from the upper end and the lower end of the corrugated pipe 8 respectively for butt joint fixing, and grouting materials 12 are filled in the corrugated pipe 8 during butt joint fixing. The steel reinforcement cage includes fixed connection's group's strip reinforcing bar 9 and spiral muscle 10, group's strip reinforcing bar 9 and vertical butt joint reinforcing bar 14 parallel arrangement, and spiral muscle 10 is the heliciform and coils in 8 peripheries of bellows. Adopt pre-buried bellows 8 as the material of staying the hole, economy and convenience adopt the steel reinforcement cage that group's bar reinforcement 9 and spiral muscle 10 constitute, simple manufacture to can realize reinforcing bar butt joint's continuous biography power, adopt spiral muscle 10 can restraint the concrete, improve and connect the ductility.
As shown in fig. 1, the fully prefabricated shear wall panel further includes horizontal reinforcing bars 7 uniformly distributed in the precast concrete body, having an effect of enhancing structural strength.
The construction method of the fully precast concrete shear wall is the same as that of the embodiment 1.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A fully-precast concrete shear wall is characterized by comprising a plurality of layers of fully-precast shear wall boards which are fixedly butted;
the fully-prefabricated shear wall plate comprises a prefabricated concrete body and a plurality of vertical butt-joint reinforcing steel bars distributed through the prefabricated concrete body, wherein a reinforcing steel bar butt-joint assembly is arranged below the interior of the prefabricated concrete body, the top ends of the vertical butt-joint reinforcing steel bars extend out of the upper surface of the prefabricated concrete body, and the bottom ends of the vertical butt-joint reinforcing steel bars are inserted into the reinforcing steel bar butt-joint assembly;
when the upper and lower two-layer full-precast shear wall board is mutually butted and fixed, the top end of the vertical butt joint reinforcing steel bar of the lower layer is inserted into the reinforcing steel bar butt joint assembly of the upper layer and is fixedly butted with the bottom end of the vertical butt joint reinforcing steel bar of the upper layer.
2. The fully precast concrete shear wall of claim 1, wherein the vertical butt-jointed rebars are upset-headed rebars.
3. The fully precast concrete shear wall of claim 2, wherein the vertical butt-joint reinforcing steel bars comprise middle vertical butt-joint reinforcing steel bars and edge vertical butt-joint reinforcing steel bars, the edge vertical butt-joint reinforcing steel bars are distributed at two ends of the precast concrete body, the middle vertical butt-joint reinforcing steel bars are distributed in the middle of the precast concrete body, and a plurality of layers of horizontal stirrups which are uniformly distributed are arranged on the periphery of the edge vertical butt-joint reinforcing steel bars.
4. The fully precast concrete shear wall of claim 3, wherein a plurality of vertical steel bars are further arranged in the fully precast shear wall panel, and the vertical steel bars and the middle vertical butt-joint steel bars are uniformly distributed.
5. The fully precast concrete shear wall of claim 4, wherein the connection manner of the middle vertical butt-joint reinforcing steel bars of the upper layer and the lower layer is one of connection one by one, single-row connection or partial connection.
6. The fully precast concrete shear wall of claim 2, wherein the reinforcement butt joint assembly comprises a corrugated pipe and a reinforcement cage arranged on the periphery of the corrugated pipe, and both the corrugated pipe and the reinforcement cage are pre-embedded in the precast concrete body; and the vertical butt-joint reinforcing steel bars at the upper layer and the lower layer are respectively inserted from the upper end and the lower end of the corrugated pipe for butt-joint fixation, and grouting materials are filled in the corrugated pipe during butt-joint fixation.
7. The fully precast concrete shear wall of claim 6, wherein the reinforcement cage comprises fixedly connected wall bars and spiral bars, the wall bars and the vertical butt-joint bars are arranged in parallel, and the spiral bars are spirally wound on the periphery of the corrugated pipe.
8. The fully precast concrete shear wall of claim 1, wherein a mortar layer is arranged between the upper and lower layers of the fully precast shear wall panels.
9. The fully precast concrete shear wall of claim 1, further comprising horizontal rebar uniformly distributed within the precast concrete body.
10. A construction method of a fully precast concrete shear wall is characterized by comprising the following steps:
producing a plurality of layers of fully prefabricated shear wall panels;
arranging a mortar layer on the top surface of the lower-layer fully-prefabricated shear wall plate, and installing the upper-layer fully-prefabricated shear wall plate in place, so that the top end of the vertical butt joint steel bar of the lower-layer fully-prefabricated shear wall plate is inserted into the steel bar butt joint assembly of the upper-layer fully-prefabricated shear wall plate;
pouring grouting materials into the steel bar butt joint assembly, enabling the bottom end of the upper-layer vertical butt joint steel bar to be in butt joint with the top end of the lower-layer vertical butt joint steel bar to be fixed, forming a vertical steel bar grout anchor butt joint, and enabling the upper layer of fully-prefabricated shear wall plate and the lower layer of fully-prefabricated shear wall plate to be in butt joint to form a whole;
and repeating the steps, and butting and fixing a plurality of layers of fully-prefabricated shear wall boards to complete the construction of the fully-prefabricated concrete shear wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110023811.3A CN112780007A (en) | 2021-01-08 | 2021-01-08 | Fully-prefabricated concrete shear wall and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110023811.3A CN112780007A (en) | 2021-01-08 | 2021-01-08 | Fully-prefabricated concrete shear wall and construction method thereof |
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| CN112780007A true CN112780007A (en) | 2021-05-11 |
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| CN202110023811.3A Pending CN112780007A (en) | 2021-01-08 | 2021-01-08 | Fully-prefabricated concrete shear wall and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114872184A (en) * | 2022-05-06 | 2022-08-09 | 中煤科工集团北京华宇工程有限公司 | Method for manufacturing shield segment and method for manufacturing shield pipeline |
-
2021
- 2021-01-08 CN CN202110023811.3A patent/CN112780007A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114872184A (en) * | 2022-05-06 | 2022-08-09 | 中煤科工集团北京华宇工程有限公司 | Method for manufacturing shield segment and method for manufacturing shield pipeline |
| CN114872184B (en) * | 2022-05-06 | 2023-12-22 | 中煤科工集团北京华宇工程有限公司 | Method for manufacturing shield segment and method for manufacturing shield pipeline |
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