CN113216451A - Attached prefabricated shear wall and construction method thereof - Google Patents
Attached prefabricated shear wall and construction method thereof Download PDFInfo
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- CN113216451A CN113216451A CN202110637489.3A CN202110637489A CN113216451A CN 113216451 A CN113216451 A CN 113216451A CN 202110637489 A CN202110637489 A CN 202110637489A CN 113216451 A CN113216451 A CN 113216451A
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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
- 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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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Abstract
The invention discloses an attached prefabricated shear wall and a construction method thereof, wherein the attached prefabricated shear wall comprises at least two prefabricated shear wall pieces obtained by splitting a shear wall, a corrugated pipe is embedded in each prefabricated shear wall piece, an annular cable sleeve is sleeved outside each corrugated pipe, the crossed and overlapped parts of the cable sleeves corresponding to the adjacent prefabricated shear wall pieces in a matched position form an annular fixing ring, fixing steel bars are inserted into the fixing rings, and the adjacent prefabricated shear wall pieces are fixedly connected through the fixing steel bars inserted into the fixing rings; the potential safety hazard of a structure caused by non-compact grouting in the conventional sleeve grouting connection of the prefabricated shear wall can be solved, and the connection cost is low; the laminating type prefabricated shear wall is high in construction efficiency, small in using amount of workers, small in field wet operation amount, high in economic benefit, capable of meeting the requirement of green construction and high in popularization value.
Description
Technical Field
The invention belongs to the technical field of prefabricated shear wall design and construction of an assembled concrete building, and relates to a fitting type prefabricated shear wall and a construction method thereof.
Background
At present, under the situation of transformation and upgrading in the building industry, the fabricated building becomes the main development direction. In fabricated construction, a shear wall structure is constructed in at most one structural form using fabricated technology, and a prefabricated shear wall is also one of the most applied component types. The common types of the existing prefabricated shear wall include a prefabricated concrete sandwich heat-insulation wall plate, a prefabricated shear wall inner wall plate, a superposed building wall plate and the like, although the prefabricated shear wall is applied in a plurality of forms, the defects exist, for example, the shear wall is connected in a manner of adopting a grouting sleeve, the connection manner has higher construction cost due to higher cost of the sleeve, the grouting compactness of the grouting sleeve cannot be ensured, and certain structural potential safety hazards exist; the field concrete pouring amount of the prefabricated shear wall types is large, and due to the fact that the nodes are poured in the field, a large amount of wet operation exists on the field, a large amount of construction waste is easily generated, the environment is polluted, and the requirements of green construction are not met; meanwhile, the construction efficiency is low, the using amount of workers is relatively large, the using amount of workers of the fabricated building is reduced to a certain extent compared with that of workers of a traditional cast-in-place structure, and the construction efficiency is not obviously improved. Therefore, in this background, it is necessary to develop a new type of precast shear wall to solve the above problems as soon as possible, so as to play a positive role in promoting the development of the fabricated technology.
Disclosure of Invention
The invention aims to provide a laminating type prefabricated shear wall and a construction method thereof, and aims to solve the problems of sleeve grouting connection; meanwhile, the attaching type prefabricated shear wall is high in construction efficiency, less in using amount of workers, extremely less in field wet operation amount and great in economic benefit.
The attached prefabricated shear wall comprises at least two prefabricated shear wall pieces obtained by splitting the shear wall, a corrugated pipe is embedded in each prefabricated shear wall piece, an annular cable sleeve is sleeved outside each corrugated pipe, the parts, corresponding to the cable sleeves, of the adjacent prefabricated shear wall pieces in a matched mode, are crossed and overlapped to form an annular fixing ring, fixing steel bars are inserted into the fixing rings, and the adjacent prefabricated shear wall pieces are fixedly connected through the fixing steel bars inserted into the fixing rings.
Furthermore, a first cavity is reserved between the adjacent prefabricated shear wall pieces, and a limiting block is arranged on the inner side wall of the prefabricated shear wall piece on the inner wall of at least one side of the first cavity.
Furthermore, connecting steel bars are inserted into the corrugated pipe, and grouting materials are filled into the corrugated pipe; one end of the cable sleeve is sleeved on the corrugated pipe, and the other end of the cable sleeve is exposed out of the prefabricated shear wall sheet; a notch is formed in the inner side wall of the prefabricated shear wall sheet on the cable sleeve on the side wall of the first cavity; the concave openings on the inner side walls of the adjacent prefabricated shear wall pieces are opposite in direction and combined to form concave holes, the fixing rings are located at the concave holes, and fixing reinforcing steel bars are inserted into the fixing rings and the concave holes.
Furthermore, corrugated pipes are embedded in two ends of the prefabricated shear wall sheet respectively; the fixing reinforcing steel bars comprise first fixing reinforcing steel bars and second fixing reinforcing steel bars, the first fixing reinforcing steel bars are inserted into the fixing rings of the prefabricated shear wall pieces and the cable sleeves of the first prefabricated shear wall pieces adjacent to the prefabricated shear wall pieces along the length direction of the prefabricated shear wall pieces in a crossed and overlapped mode, and the second fixing reinforcing steel bars are inserted into the fixing rings of the prefabricated shear wall pieces and the cable sleeves of the second prefabricated shear wall pieces adjacent to the prefabricated shear wall pieces along the width direction of the prefabricated shear wall pieces in a crossed and overlapped mode.
Further, concrete baffles are arranged at two ends of the prefabricated shear wall piece; and the second prefabricated shear wall piece and a third prefabricated shear wall piece, the prefabricated shear wall pieces and the first prefabricated shear wall piece which are adjacent along the length direction of the second prefabricated shear wall piece form a closed second cavity together with the concrete baffle plates of the four prefabricated shear wall pieces, and bonding mortar is filled into the first cavity and the second cavity.
The construction method of the attaching type prefabricated shear wall can comprise the following steps:
splitting the shear wall into at least two prefabricated shear wall pieces;
pre-burying a corrugated pipe in the prefabricated shear wall;
sleeving an annular cable sleeve outside the corrugated pipe;
matching and overlapping cable sleeves corresponding to the adjacent prefabricated shear wall pieces in position in a crossed manner to form an annular fixing ring;
and inserting fixing steel bars into the fixing rings, so that the adjacent prefabricated shear wall pieces are fixedly connected through the fixing steel bars inserted into the fixing rings.
More specifically, when the shear wall is split into at least two prefabricated shear wall pieces, a first cavity is reserved between every two adjacent prefabricated shear wall pieces; arranging a limiting block on the inner side wall of the prefabricated shear wall piece on the inner wall of at least one side of the first cavity; embedding a reinforcing mesh in the prefabricated shear wall; pre-burying a corrugated pipe in a position, which is in a prefabricated shear wall piece and is attached to the reinforcing mesh piece; inserting connecting steel bars into the corrugated pipe; and (5) grouting the grouting material into the corrugated pipe.
More specifically, when the corrugated pipe is sleeved with the annular cable sleeve, one end of the cable sleeve is sleeved on the corrugated pipe, and the other end of the cable sleeve is exposed out of the prefabricated shear wall sheet; arranging a notch on the inner side wall of the prefabricated shear wall sheet on the cable sleeve on the side wall of the first cavity; the method comprises the following steps that the directions of notches in the inner side walls of adjacent prefabricated shear wall pieces are opposite, a concave hole is formed by combination, the fixing ring is located at the position of the concave hole, and fixing reinforcing steel bars are inserted into the fixing ring and the concave hole.
More specifically, when the corrugated pipes are pre-embedded in the prefabricated shear wall, the corrugated pipes are pre-embedded at two ends of the prefabricated shear wall respectively; the method comprises the steps of enabling fixing reinforcing steel bars to comprise first fixing reinforcing steel bars and second fixing reinforcing steel bars, inserting the first fixing reinforcing steel bars into fixing rings of two adjacent first precast shear wall pieces along the length direction of the precast shear wall pieces, and inserting the second fixing reinforcing steel bars into fixing rings of two adjacent second precast shear wall pieces along the width direction of the precast shear wall pieces, wherein the fixing rings are overlapped in a crossed mode.
More specifically, concrete baffles are arranged at two ends of each prefabricated shear wall piece; and forming a closed second cavity by the concrete baffles of the two adjacent prefabricated shear wall pieces along the length direction of the prefabricated shear wall pieces and the four prefabricated shear wall pieces of the two adjacent prefabricated shear wall pieces along the width direction of the prefabricated shear wall pieces, and filling bonding mortar into the first cavity and the second cavity.
The invention can achieve the following beneficial effects:
the attached prefabricated shear wall and the construction method thereof can solve the potential structural safety hazard caused by non-compact grouting in the sleeve grouting connection of the traditional prefabricated shear wall, and the connection cost is low; the laminating type prefabricated shear wall is high in construction efficiency, small in using amount of workers, small in field wet operation amount, high in economic benefit, capable of meeting the requirement of green construction and high in popularization value.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of a bonded prefabricated shear wall according to the present invention.
FIG. 2 is a schematic view of a precast shear wall segment.
Fig. 3 is an elevation view of a precast shear wall segment.
FIG. 4 is a schematic view of horizontal connection of a bonded precast shear wall.
In the drawing, 1 is a prefabricated shear wall piece, 100 is a notch, 101 is a first prefabricated shear wall piece, 102 is a second prefabricated shear wall piece, 103 is a third prefabricated shear wall piece, 2 is a corrugated pipe, 3 is a cable sleeve, 4 is a fixing steel bar, 401 is a first fixing steel bar, 5 is a second fixing steel bar, 6 is a first cavity, 7 is a horizontal steel bar, 8 is a vertical steel bar, 9 is a concrete baffle, 10 is a limiting block, 11 is a connecting steel bar, 12 is grouting material, 13 is a second cavity, 14 is bonding mortar, and 15 is a fixing ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Example 1
As shown in fig. 1 to 3, a laminating prefabricated shear wall includes two at least prefabricated shear wall pieces 1 obtained by the shear wall split, pre-buried bellows 2 in the prefabricated shear wall piece 1, annular cable cover 3 is established to bellows 2 overcoat, the cable cover 3 cross coincidence's that the position matching corresponds on the adjacent prefabricated shear wall piece 1 part constitutes annular solid fixed ring 15, inserts fixed steel bar 4 in the solid fixed ring 15, adjacent prefabricated shear wall piece 1 is through inserting solid fixed steel bar 4 in the solid fixed ring 15 realizes fixed connection.
The construction method of the attaching type precast shear wall of the embodiment may include the following steps:
splitting the shear wall into at least two prefabricated shear wall pieces 1;
pre-burying a corrugated pipe 2 in the prefabricated shear wall sheet 1;
sleeving an annular cable sleeve 3 outside the corrugated pipe 2;
the cable sleeves 3 which are matched and corresponding in position on the adjacent prefabricated shear wall pieces 1 are crossed and overlapped to form an annular fixing ring 15;
and inserting the fixing steel bars 4 into the fixing rings 15, so that the adjacent prefabricated shear wall pieces 1 are fixedly connected through the fixing steel bars 4 inserted into the fixing rings 15.
Example 2
Referring to fig. 1, the laminated prefabricated shear wall of example 1 may further include two prefabricated shear wall pieces 1 obtained by splitting the shear wall.
Further, the two prefabricated shear wall pieces 1 are obtained by splitting along the center line of the section of the shear wall.
The construction method of the attached precast shear wall of the embodiment may further include the following steps: when the shear wall is split into at least two prefabricated shear wall pieces 1, the shear wall is split along the center line of the section of the shear wall.
Further, the thickness of each prefabricated shear wall piece 1 is 90 mm.
Example 3
Referring to fig. 2, the bonded prefabricated shear wall described in embodiment 1 or embodiment 2 may further include embedded steel mesh sheets in the prefabricated shear wall pieces 1.
Further, the reinforcing mesh comprises horizontal reinforcing steel bars 7 and vertical reinforcing steel bars 8.
Further, the distance between the horizontal steel bar 7 and the vertical steel bar 8 is 200mm respectively.
Further, the diameter of the horizontal steel bars 7 and the vertical steel bars 8 is 8 mm.
Further, the corrugated tube 2 is a metal corrugated tube.
Furthermore, the corrugated pipe 2 is pre-buried in the prefabricated shear wall piece 1 at the position where the reinforcing mesh piece is attached.
Furthermore, the number of the corrugated pipes 2 pre-embedded in the prefabricated shear wall sheet 1 is at least two.
Furthermore, the corrugated pipes 2 pre-embedded in the prefabricated shear wall pieces 1 are uniformly distributed.
Further, the distance between adjacent corrugated tubes 2 is 600 mm.
Further, a connection bar 11 is inserted into the corrugated tube 2.
Further, the corrugated pipe 6 is filled with a grouting material 12.
Further, the bellows 6 is a metal bellows.
The construction method of the attached precast shear wall of the embodiment may further include the following steps: and (4) embedding a reinforcing mesh in the prefabricated shear wall sheet 1.
The reinforcing mesh can further comprise horizontal reinforcing steel bars 7 and vertical reinforcing steel bars 8.
And furthermore, the corrugated pipe 2 is pre-embedded in the prefabricated shear wall sheet 1 at the position where the prefabricated shear wall sheet is attached to the reinforcing mesh sheet.
It is further possible to insert the corrugated tube 2 with a connecting reinforcement 11.
Further, the corrugated pipe 6 may be filled with a grouting material 12.
Example 4
Referring to fig. 1 and 2, in the laminated prefabricated shear wall according to any one of the above embodiments, the number of the cable bushes 3 on the corrugated pipe 2 may be further at least two, and the cable bushes 3 are distributed along the length direction of the corrugated pipe 2.
Further, the distance between adjacent grommets 3 on each bellows 2 is 400 mm.
Furthermore, one end of the cable sleeve 3 is sleeved on the corrugated pipe 2, and the other end of the cable sleeve 3 is exposed out of the prefabricated shear wall piece 1.
Furthermore, corrugated pipes 2 are pre-embedded at two ends of the prefabricated shear wall piece 1 respectively.
Further, the grommet 3 is an elongated ring.
Further, the cable sleeve 3 is a rectangular ring. At this time, both short sides of the grommet 3 are arc-shaped sides protruding outward.
Further, the cable sheath 3 is an elliptical ring.
Furthermore, the central axes of the cable sleeves 3 sleeved on the corrugated pipes 2 at the two ends of the prefabricated shear wall piece 1 are vertical to each other.
The construction method of the attached precast shear wall of the embodiment may further include the following steps: the number of the corrugated pipes 2 pre-embedded in the prefabricated shear wall sheet 1 is set to be at least two.
Furthermore, the corrugated pipes 2 pre-embedded in the prefabricated shear wall pieces 1 can be uniformly distributed.
It is further possible to have at least two grommets 3 on the corrugated pipe 2, and to distribute the grommets 3 along the length of the corrugated pipe 2.
Furthermore, when the corrugated pipe 2 is sleeved with the annular cable sleeve 3, one end of the cable sleeve 3 is sleeved on the corrugated pipe 2, and the other end of the cable sleeve 3 is exposed out of the prefabricated shear wall piece 1.
Furthermore, when the corrugated pipes 2 are pre-embedded in the prefabricated shear wall piece 1, the corrugated pipes 2 are pre-embedded in two ends of the prefabricated shear wall piece 1 respectively.
It is further possible to provide the cable cover 3 as an elongated ring.
It is further possible to provide the cable cover 3 as a rectangular ring. At this time, both short sides of the grommet 3 may be arc-shaped sides that are convex outward.
It is further possible to provide the cable cover 3 as an elliptical ring.
Furthermore, the central axes of the cable sleeves 3 sleeved on the corrugated pipes 2 at the two ends of the prefabricated shear wall piece 1 are mutually vertical.
Example 5
Referring to fig. 1, 2 and 4, in the attached prefabricated shear wall according to any one of the above embodiments, a first cavity 6 may be further reserved between adjacent prefabricated shear wall pieces 1.
Further, the width of the first cavity 6 is 20 mm.
Further, a notch 100 is formed in the inner side wall of the prefabricated shear wall sheet 1 on the side wall of the first cavity 6 and at the position of the cable sleeve 3; the 100 directions of the notches on the inner side walls of the adjacent prefabricated shear wall pieces 1 are opposite, the notches are combined to form concave holes, the fixing rings 15 are located at the concave holes, and the fixing reinforcing steel bars 4 are inserted into the fixing rings 15 and the concave holes.
Further, the notch 100 is a semicircular notch, a semi-elliptical notch, or a rectangular notch.
The construction method of the attached precast shear wall of the embodiment may further include the following steps: a first cavity 6 is reserved between the adjacent prefabricated shear wall pieces 1.
Further, a notch 100 is formed in the inner side wall of the prefabricated shear wall piece 1 on the side wall of the first cavity 6 and at the position of the cable sleeve 3; the notches 100 on the inner side walls of the adjacent prefabricated shear wall pieces 1 are opposite in direction and combined to form a concave hole, the fixing ring 15 is located at the concave hole, and the fixing steel bar 4 is inserted into the fixing ring 15 and the concave hole.
It is further possible to provide the recess 100 as a semicircular recess, a semi-elliptical recess, or a rectangular recess.
Example 6
Referring to fig. 1 and 3, in the laminated prefabricated shear wall according to any one of the above embodiments, the inner side wall of the prefabricated shear wall piece 1 serving as the side wall of the first cavity 6 may further be rough.
Furthermore, a limiting block 10 is arranged on the inner side wall of the prefabricated shear wall piece 1 on the inner wall of at least one side of the first cavity 6.
Further, the limiting block 10 is a rectangular block.
Further, the height of the limiting block 10 is equal to the width of the first cavity 6.
That is, the distance between adjacent precast shear wall pieces 1, which forms the first cavity 6, is equal to the dimension of the stopper 10 in the direction of the distance.
Further, the number of the limiting blocks 10 is at least two.
Furthermore, the limiting blocks 10 are uniformly distributed.
Further, the distance between adjacent limiting blocks 10 is 600 mm.
Further, the height of the limiting block 10 and the width of the first cavity 3 are both 20 mm.
The construction method of the attached precast shear wall of the embodiment may further include the following steps: the prefabricated shear wall sheet 1 is used as the inner side wall of the first cavity 6 and is set to be a rough surface.
And furthermore, a limiting block 10 is arranged on the inner side wall of the prefabricated shear wall piece 1 on the inner wall of at least one side of the first cavity 6.
Still further, the limiting block 10 is a rectangular block.
Further, the height of the limiting block 10 is equal to the width of the first cavity 6.
That is, the distance between the adjacent precast shear wall pieces 1 to form the first cavity 6 is set to be equal to the dimension of the stopper 10 in the distance direction.
Still further, the number of the limiting blocks 10 is set to be at least two.
Furthermore, the limiting blocks 10 can be uniformly distributed.
Example 7
Referring to fig. 2 and 4, in the laminated prefabricated shear wall according to any embodiment, concrete baffles 9 may be further arranged at two ends of the prefabricated shear wall piece 1.
Further, the concrete baffle 9 extends to the outside of the precast shear wall segment 1.
The concrete baffle 9 had a length of 30mm and a thickness of 10 mm.
Further, the fixing reinforcing steel bars 4 comprise first fixing reinforcing steel bars 401 and second fixing reinforcing steel bars 5, the first fixing reinforcing steel bars 501 are inserted into the fixing rings 15, in which the prefabricated shear wall pieces 1 and the cable sleeves 3 of the first prefabricated shear wall pieces 101 adjacent to each other in the length direction are crossed and overlapped, and the second fixing reinforcing steel bars 5 are inserted into the fixing rings 15, in which the prefabricated shear wall pieces 1 and the cable sleeves 3 of the second prefabricated shear wall pieces 102 adjacent to each other in the width direction are crossed and overlapped.
Furthermore, a second cavity 13 is formed by the second prefabricated shear wall piece 102 and the third prefabricated shear wall piece 103, the prefabricated shear wall pieces 1 and the first prefabricated shear wall piece 101 which are adjacent to each other along the length direction of the second prefabricated shear wall piece, and the concrete baffles 9 of the four prefabricated shear wall pieces 1 are filled with bonding mortar 14 into the first cavity 6 and the second cavity 13.
Further, the first cavity 6 is rectangular.
Further, the second cavity 13 is rectangular.
The construction method of the attached precast shear wall of the embodiment may further include the following steps: and arranging concrete baffles 9 at two ends of the prefabricated shear wall sheet 1.
Further, the concrete baffle 9 may be extended toward the outside of the precast shear wall segment 1.
Further, the fixing steel bars 4 comprise first fixing steel bars 401 and second fixing steel bars 5, the first fixing steel bars 501 are inserted into the fixing rings 15 which are overlapped in a crossing manner along the cable sleeves 3 of two adjacent first precast shear wall pieces 101 in the length direction of the precast shear wall piece 1, and the second fixing steel bars 5 are inserted into the fixing rings 15 which are overlapped in a crossing manner along the cable sleeves 3 of two adjacent second precast shear wall pieces 1 in the width direction of the precast shear wall piece 1.
Furthermore, a closed second cavity 13 is formed by the concrete baffles 9 of the two adjacent prefabricated shear wall pieces 1 along the length direction of the prefabricated shear wall piece 1 and the four prefabricated shear wall pieces 1 of the two adjacent prefabricated shear wall pieces 1 along the width direction of the prefabricated shear wall piece 1, and bonding mortar 14 is filled into the first cavity 6 and the second cavity 13.
Referring to fig. 1 to 4, the construction method of the attached precast shear wall of the present invention may specifically include the following steps in a specific construction process:
the shear wall is divided into a first prefabricated shear wall piece 101 and a second prefabricated shear wall piece 102 along the center line of the section, the thickness of each of the two prefabricated shear wall pieces is set to be 90mm, a first cavity 6 is reserved between the two prefabricated shear wall pieces, and the width of the first cavity 6 can be set to be 20 mm;
embedding a steel bar mesh in each prefabricated shear wall, wherein the steel bar mesh is composed of horizontal steel bars 7 and vertical steel bars 8, the distance between the horizontal steel bars 7 and the vertical steel bars 8 can be set to be 200mm, and the steel bar diameters of the horizontal steel bars 7 and the vertical steel bars 8 can be set to be 8 mm;
pre-burying a metal corrugated pipe 2 at intervals of not more than 600mm along the cross section of the prefabricated shear wall piece and at the position close to the reinforcing mesh, ensuring that one metal corrugated pipe 2 is pre-buried at both ends of the prefabricated shear wall piece, and replacing one vertical reinforcing steel bar 8 with the metal corrugated pipe 2 when the metal corrugated pipe 2 collides with the vertical reinforcing steel bar 8 of the reinforcing mesh;
sleeving a plurality of cable sleeves 3 on each metal corrugated pipe 2, vertically distributing the cable sleeves 3 along the metal corrugated pipes 2, setting the distance between two adjacent cable sleeves 2 to be 400mm, exposing the other ends of the cable sleeves 3 outside the prefabricated shear wall sheet, arranging a row of cable sleeves 2 on two end parts of the prefabricated shear wall sheet in the same way, sleeving one ends of the cable sleeves 2 on the metal corrugated pipes 2 on the end parts of the prefabricated shear wall sheet, exposing the other ends of the cable sleeves 2 outside, and enabling the cable sleeves 3 to be perpendicular to the other row of cable sleeves 3;
reserving a semicircular notch 100, which can be a semi-elliptical notch or a rectangular notch, at the position of the cable sleeve 2 arranged along the long side direction of the prefabricated shear wall sheet;
manufacturing concrete baffles 9 at two ends of the prefabricated shear wall pieces, wherein the length of each concrete baffle 9 can be set to be 30mm, and the thickness of each concrete baffle 9 can be set to be 10 mm;
the inner surface of the prefabricated shear wall sheet is set to be a rough surface, a plurality of limiting blocks 10 are distributed on the inner surface of the first prefabricated shear wall sheet 101, the distance between every two adjacent limiting blocks 10 is set to be 600mm, and the heights of the limiting blocks 10 and the width of the first cavity 6 are set to be consistent and can be 20 mm.
When the prefabricated shear wall pieces are installed, the first prefabricated shear wall pieces 101 are hoisted in place, each metal corrugated pipe 2 is inserted into one connecting steel bar 11 and filled with grouting material 12, and the second prefabricated shear wall pieces 102 are installed in the same way;
after the two prefabricated shear wall pieces are installed, a first cavity 6 with the width of 20mm is reserved between the two prefabricated shear wall pieces, the mutually-crossed parts of the exposed cable sleeves 2 of the two prefabricated shear wall pieces form a round-hole-shaped fixing ring 15, and a first fixing steel bar 401 is inserted along the fixing ring 15 from top to bottom;
after two adjacent first prefabricated shear wall pieces 101 along the length direction of the prefabricated shear wall pieces and two adjacent second prefabricated shear wall pieces 102 along the width direction of the prefabricated shear wall pieces are installed by the same method, the concrete baffles 9 of the four prefabricated shear wall pieces form a closed rectangular second cavity 15, a second fixing reinforcing steel bar 5 is also inserted into a round hole-shaped fixing ring 15 formed by crossing two cable sleeves 3 on the side surface, and the first cavity 6 and the second cavity 13 are filled with bonding mortar 14 for filling.
It is thus clear that, above-mentioned laminating formula precast shear wall's work progress through dividing into two precast shear wall pieces with the shear wall, the thickness of precast shear wall piece can be unanimous. Embedding a metal corrugated pipe 2 and a cable sleeve 3 in the shear wall, fixing two prefabricated shear wall pieces through the cable sleeve 3 and a fixing steel bar 4, and attaching the prefabricated shear wall pieces together in a mode that a first cavity 6 in the middle of the prefabricated shear wall pieces is filled with grouting material 12; the upper shear wall and the lower shear wall are connected in a mode that the metal corrugated pipe 2 is inserted into the connecting steel bar 11. The attaching type prefabricated shear wall and the construction method thereof effectively solve the problem of defects caused by sleeve grouting connection. Meanwhile, the attaching type prefabricated shear wall is high in construction efficiency, less in using amount of workers, extremely less in field wet operation amount and great in economic benefit.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. The utility model provides a fabricated shear wall of laminating formula, includes two at least prefabricated shear wall pieces (1) by the shear wall split gained, its characterized in that, pre-buried bellows (2) in prefabricated shear wall piece (1), annular cable cover (3) are established to bellows (2) overcoat, and the cable cover (3) that the position matching corresponds on adjacent prefabricated shear wall piece (1) cross the part of coincidence and constitute annular solid fixed ring (15), inserts fixed reinforcement (4) in solid fixed ring (15), and adjacent prefabricated shear wall piece (1) is through inserting solid fixed reinforcement (4) in solid fixed ring (15) realize fixed connection.
2. The laminated prefabricated shear wall of claim 1, wherein a first cavity (6) is reserved between adjacent prefabricated shear wall pieces (1), and a limiting block (10) is arranged on the inner side wall of the prefabricated shear wall piece (1) on the inner wall of at least one side of the first cavity (6).
3. The laminated precast shear wall of claim 1, wherein the corrugated tube (2) is inserted with connecting steel bars (11), and the corrugated tube (6) is filled with grouting material (12); one end of the cable sleeve (3) is sleeved on the corrugated pipe (2), and the other end of the cable sleeve (3) is exposed out of the prefabricated shear wall sheet (1); a notch (100) is formed in the inner side wall of the prefabricated shear wall sheet (1) on the side wall of the first cavity (6) and at the position of the cable sleeve (3); notch (100) direction on adjacent precast shear wall piece (1) inside wall is relative, and the combination constitutes the shrinkage pool, gu fixed ring (15) are located the shrinkage pool department, insert fixed reinforcing bar (4) gu fixed ring (15) with in the shrinkage pool.
4. The fitted precast shear wall of claim 2, wherein the corrugated pipes (2) are embedded in both ends of the precast shear wall segment (1), respectively; the fixed reinforcing steel bars (4) comprise first fixed reinforcing steel bars (401) and second fixed reinforcing steel bars (5), the prefabricated shear wall pieces (1) are crossed and overlapped with the cable sleeves (3) of the first prefabricated shear wall pieces (101) adjacent to the prefabricated shear wall pieces along the length direction of the prefabricated shear wall pieces, the first fixed reinforcing steel bars (501) are inserted into the fixed rings (15), and the prefabricated shear wall pieces (1) are crossed and overlapped with the cable sleeves (3) of the second prefabricated shear wall pieces (102) adjacent to the prefabricated shear wall pieces along the width direction of the prefabricated shear wall pieces and the second fixed reinforcing steel bars (5) are inserted into the fixed rings (15).
5. The laminated precast shear wall of claim 2, wherein the precast shear wall segment (1) is provided with concrete baffles (9) at both ends; the second prefabricated shear wall piece (102) and a third prefabricated shear wall piece (103), a prefabricated shear wall piece (1) and a first prefabricated shear wall piece (101) which are adjacent along the length direction of the second prefabricated shear wall piece form a closed second cavity (13) together with concrete baffles (9) of the four prefabricated shear wall pieces (1), and bonding mortar (14) is poured into the first cavity (6) and the second cavity (13).
6. The method of constructing a conformable precast shear wall of any one of claims 1 to 5, comprising the steps of:
splitting the shear wall into at least two prefabricated shear wall pieces (1);
pre-burying a corrugated pipe (2) in the prefabricated shear wall sheet (1);
an annular cable sleeve (3) is sleeved outside the corrugated pipe (2);
the cable sleeves (3) which are matched and corresponding in position on the adjacent prefabricated shear wall pieces (1) are crossed and overlapped to form an annular fixing ring (15);
and inserting fixing steel bars (4) into the fixing rings (15), so that the adjacent prefabricated shear wall pieces (1) are fixedly connected through the fixing steel bars (4) inserted into the fixing rings (15).
7. The construction method of the attached prefabricated shear wall according to claim 6, wherein when the shear wall is split into at least two prefabricated shear wall pieces (1), a first cavity (6) is reserved between the adjacent prefabricated shear wall pieces (1); arranging a limiting block (10) on the inner side wall of the prefabricated shear wall piece (1) on the inner wall of at least one side of the first cavity (6); embedding a reinforcing mesh in the prefabricated shear wall sheet (1); pre-burying a corrugated pipe (2) at a position, which is in the prefabricated shear wall piece (1) and is attached to the reinforcing mesh piece; connecting steel bars (11) are inserted into the corrugated pipe (2); and grouting the corrugated pipe (6) with grouting material (12).
8. The construction method of the attaching type precast shear wall according to claim 6, wherein when the corrugated pipe (2) is externally sleeved with the annular cable sleeve (3), one end of the cable sleeve (3) is sleeved on the corrugated pipe (2), and the other end of the cable sleeve (3) is exposed out of the precast shear wall piece (1); arranging a notch (100) on the inner side wall of the prefabricated shear wall sheet (1) on the side wall of the first cavity (6) and at the position of the cable sleeve (3); the direction of a notch (100) on the inner side wall of each adjacent prefabricated shear wall piece (1) is opposite, a concave hole is formed by combination, the fixing ring (15) is located at the position of the concave hole, and the fixing steel bar (4) is inserted into the fixing ring (15) and the concave hole.
9. The construction method of the attached precast shear wall according to claim 7, wherein when the corrugated pipe (2) is pre-embedded in the precast shear wall piece (1), the corrugated pipe (2) is pre-embedded at both ends of the precast shear wall piece (1) respectively; the fixing reinforcing steel bars (4) comprise first fixing reinforcing steel bars (401) and second fixing reinforcing steel bars (5), the cable sleeves (3) of two adjacent first prefabricated shear wall pieces (1) in the length direction of the prefabricated shear wall pieces (1) are overlapped in a crossed mode, the first fixing reinforcing steel bars (501) are inserted into the fixing rings (15), and the cable sleeves (3) of two adjacent second prefabricated shear wall pieces (1) in the width direction of the prefabricated shear wall pieces (1) are overlapped in a crossed mode, the second fixing reinforcing steel bars (5) are inserted into the fixing rings (15).
10. The construction method of the laminated prefabricated shear wall according to claim 7, wherein concrete baffles (9) are arranged at two ends of the prefabricated shear wall piece (1); and (2) forming a closed second cavity (13) by using concrete baffles (9) of the two adjacent prefabricated shear wall pieces (1) along the length direction of the prefabricated shear wall piece (1) and the four prefabricated shear wall pieces (1) of the two adjacent prefabricated shear wall pieces (1) along the width direction of the prefabricated shear wall piece (1), and filling bonding mortar (14) into the first cavity (6) and the second cavity (13).
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