CN109184028B - Assembled shear wall vertical connection structure convenient to construct and installation method - Google Patents

Assembled shear wall vertical connection structure convenient to construct and installation method Download PDF

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Publication number
CN109184028B
CN109184028B CN201811197255.6A CN201811197255A CN109184028B CN 109184028 B CN109184028 B CN 109184028B CN 201811197255 A CN201811197255 A CN 201811197255A CN 109184028 B CN109184028 B CN 109184028B
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CN
China
Prior art keywords
steel bars
concrete shear
precast concrete
precast
shear
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CN201811197255.6A
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Chinese (zh)
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CN109184028A (en
Inventor
冯大阔
宋闻辉
郜玉芬
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中国建筑第七工程局有限公司
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Priority to CN201811197255.6A priority Critical patent/CN109184028B/en
Publication of CN109184028A publication Critical patent/CN109184028A/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/56Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38Connections for building structures in general
    • E04B1/61Connections for building structures in general of slab-shaped building elements with each other
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38Connections for building structures in general
    • E04B1/61Connections for building structures in general of slab-shaped building elements with each other
    • E04B1/6108Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together
    • E04B1/612Connections 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
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/02Load-carrying floor structures formed substantially of prefabricated units

Abstract

The invention discloses a vertical connection structure of an assembled shear wall and an installation method, which are convenient to construct and solve the technical problems of high construction difficulty and low construction efficiency of the conventional assembled shear wall. The invention comprises a connecting structure of a vertical component and a horizontal component, wherein the vertical component and the horizontal component respectively comprise a precast concrete shear wall and a precast floor slab, annular anchoring steel bars are arranged above the precast concrete shear wall, bent anchoring steel bars are arranged below the precast concrete shear wall, the annular anchoring steel bars and the bent anchoring steel bars of the precast concrete shear wall at the upper layer and the lower layer are mutually buckled and are buckled with the annular anchoring steel bars arranged at the periphery of the precast floor slab, and then the horizontal steel bars are inserted to form framework steel bars of a hidden beam. The invention has the advantages of few and simple construction procedures, high construction efficiency and good popularization and application prospects.

Description

Assembled shear wall vertical connection structure convenient to construct and installation method

Technical Field

The invention relates to the technical field of assembly type building construction, in particular to a vertical connection structure of an assembly type shear wall convenient to construct and an installation method.

Background

The fabricated shear wall structure is a type of fabricated concrete structure, which is defined as a fabricated concrete structure composed of mainly force-bearing members, shear walls, beams, slab portions, or all of precast concrete members. When traditional assembled ring muscle lock anchor concrete shear wall structure carries out vertical connection, adopt the ring to detain the mode and connect from top to bottom, need penetrate horizontal reinforcement again after upper and lower wall body takes one's place, horizontal reinforcement will be blockked every passing one section distance, needs the workman to carry out the manual adjustment that wastes time and energy, and the installation degree of difficulty is very big, the efficiency of construction is low.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the assembled shear wall vertical connection structure convenient to construct and the installation method, and solves the technical problems of complex structure and high construction difficulty of the existing assembled shear wall.

The technical scheme of the invention is realized as follows: the utility model provides a vertical joint construction of assembled shear force wall convenient to construction, includes the connection of vertical component and horizontal component, vertical component and horizontal component all include precast concrete shear force wall and precast floor slab, the up end of precast concrete shear force wall is provided with a plurality of annular anchor reinforcing bar side by side, and the lower terminal surface of precast concrete shear force wall all is provided with a plurality of anchor reinforcing bar of buckling, and the hook of buckling of anchor reinforcing bar all is towards the inboard of precast concrete shear force wall, precast floor slab is provided with a plurality of annular anchor reinforcing bar all around.

The vertical component connection is vertical butt joint of the precast concrete shear wall and butt joint of the precast floor slab, and after the bent anchoring steel bars on the lower side of the precast concrete shear wall on the upper layer, the annular anchoring steel bars on the upper side of the precast concrete shear wall on the lower layer and the annular anchoring steel bars of the precast floor slab are crossly buckled, the horizontal steel bars penetrate into the vertical component connection to form framework steel bars of the hidden beam.

The annular anchoring reinforcing steel bars and the bent anchoring reinforcing steel bars are all through-length reinforcing steel bars vertically penetrating through the precast concrete shear wall or the precast floor slab, and the annular anchoring reinforcing steel bars and the bent anchoring reinforcing steel bars are end parts of the through-length reinforcing steel bars exposed out of concrete.

Truss ribs are arranged in the prefabricated floor slab and are equal-height truss ribs or spaced equal-height truss ribs.

The bending angle of the end part of the bending anchoring reinforcing steel bar is 135 degrees.

The installation method of the assembled shear wall vertical connection structure convenient for construction comprises the following steps of vertical component installation connection and horizontal component installation connection:

the method comprises the following steps: and installing and fixing the lower precast concrete shear wall to a designed position.

Step two: and horizontally hoisting the precast floor slabs on two sides of the precast concrete shear wall in the step one, so that the annular anchoring steel bars on the upper part of the lower precast concrete shear wall in the step one and the annular anchoring steel bars at the end part of the precast floor slabs are mutually crossed and buckled to form annular steel bars.

Step three: and step two, after the annular anchoring reinforcing steel bars at the upper part of the lower precast concrete shear wall and the annular anchoring reinforcing steel bars at the end part of the precast floor slab are mutually crossed and buckled, penetrating horizontal reinforcing steel bars with designed number into the buckled annular reinforcing steel bars, and temporarily fixing the horizontal reinforcing steel bars.

Step four: and when the precast concrete shear wall on the upper layer is installed, the precast concrete shear wall on the lower layer in the third step is vertically placed from top to bottom, so that the horizontal steel bars smoothly pass through the neutral position in the middle of the bent anchoring steel bars at the bottom of the precast concrete shear wall on the upper layer.

Step five: and removing the temporary fixation of the horizontal reinforcing steel bars in the third step, and binding the horizontal reinforcing steel bars to each corner of the ring bars in the fourth step to finish the installation.

Two points are guaranteed when the upper precast concrete shear wall and the lower precast concrete shear wall are butted in the fourth step, the distance between the bent anchoring steel bars and the annular anchoring steel bars of the upper precast concrete shear wall and the lower precast concrete shear wall is not larger than 50mm, a supporting structure is arranged between the two precast concrete shear walls, and the bent anchoring steel bars and the annular anchoring steel bars of the two precast concrete shear walls are guaranteed not to touch each other.

The invention can lay the horizontal steel bar in the steel bar ring which is buckled by the annular anchoring steel bar of the lower wall body and the annular anchoring steel bar of the prefabricated floor slab in advance before the upper wall body is installed, thereby avoiding the technical problem of penetrating the horizontal steel bar in the prior art, simplifying the construction process, improving the construction efficiency and having good popularization and application prospect.

Drawings

FIG. 1 is a schematic structural view of a precast concrete shear wall;

FIG. 2 is a schematic structural view of a precast floor slab;

FIG. 3 is a schematic view of two structural forms of the truss rib in the precast floor slab;

FIG. 4 is a schematic structural diagram of the lower precast concrete shear wall after being filled with concrete;

FIG. 5 is a schematic structural view of the precast concrete shear wall and precast floor slab of FIG. 4;

FIG. 6 is a schematic view of the structure of FIG. 5 with temporarily attached horizontal rebar inserted;

FIG. 7 is a schematic structural view of a precast concrete shear wall vertically connected to an upper layer;

fig. 8 is a schematic structural view illustrating the removal of the temporary fixation of the horizontal reinforcing bars in fig. 7 and the installation thereof in place.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

Embodiment 1, a fabricated shear wall vertical connection structure convenient for construction comprises connection of vertical members and horizontal members, wherein each of the vertical members and the horizontal members comprises a precast concrete shear wall 1 and a precast floor slab 3, as shown in fig. 1 and 2. As shown in fig. 1, a plurality of annular anchoring steel bars 2-2 are arranged on the upper end surface of a precast concrete shear wall 1 in parallel, a plurality of bent anchoring steel bars 2-1 are arranged on the lower end surface of the precast concrete shear wall 1, and bent hooks of the bent anchoring steel bars 2-1 face the inner side of the precast concrete shear wall 1. As shown in fig. 2, the prefabricated floor slab 3 is also provided with annular anchoring steel bars 2-2 around the prefabricated floor slab.

Further, as shown in fig. 1, the annular anchoring steel bars 2-2 and the bent anchoring steel bars 2-1 are all through-length steel bars 2 vertically penetrating through the precast concrete shear wall 1 or the precast floor slab 3, and the annular anchoring steel bars 2-2 and the bent anchoring steel bars 2-1 are end portions of the through-length steel bars 2 exposed out of the concrete. The through long ribs are convenient to produce, and the structural strength can be guaranteed to the maximum extent. Truss ribs are also arranged in the precast floor slab 3, and as shown in fig. 3, the truss ribs are equal-height truss ribs 3-1 or spaced equal-height truss ribs 3-2.

The vertical component connection is vertical butt joint of the precast concrete shear wall 1, and after the bent anchoring steel bar 2-1 at the lower side of the precast concrete shear wall 1 at the upper layer, the annular anchoring steel bar 2-2 at the upper side of the precast concrete shear wall 1 at the lower layer and the annular anchoring steel bar 2-2 of the precast floor slab 3 are crossly buckled, a horizontal steel bar is penetrated to form a skeleton steel bar of the hidden beam.

Embodiment 2, a method for installing a fabricated shear wall vertical connection structure convenient for construction, which comprises a vertical component installation connection and a horizontal component installation connection, wherein the component installation connection process is as shown in fig. 4 to 8, and comprises the following steps:

the method comprises the following steps: and installing and fixing the lower precast concrete shear wall 1 to a designed position.

Step two: horizontally hoisting the precast floor slabs 3 on two sides of the precast concrete shear wall 1 in the first step, and enabling the annular anchoring steel bars 2-2 at the upper part of the precast concrete shear wall 1 on the lower layer in the first step and the annular anchoring steel bars 2-2 at the end parts of the precast floor slabs 3 to be mutually crossed and buckled to form annular steel bars;

step three: and in the second step, after the annular anchoring steel bars 2-2 at the upper part of the lower precast concrete shear wall 1 and the annular anchoring steel bars 2-2 at the end parts of the precast floor slabs 3 are mutually crossed and buckled, penetrating horizontal steel bars 2-4 with designed number into the buckled annular steel bars and temporarily fixing the horizontal steel bars.

Step four: and (3) installing the precast concrete shear wall 1 on the upper layer, and when the precast concrete shear wall 1 on the upper layer is installed, vertically placing the precast concrete shear wall 1 on the lower layer in the third step from top to bottom to ensure that the horizontal steel bars 2-4 smoothly pass through the neutral position in the middle of the bent anchoring steel bars 2-1 at the bottom of the precast concrete shear wall 1 on the upper layer.

Step five: removing the temporary fixation of the horizontal steel bars 2-4 in the third step, and binding the horizontal steel bars 2-4 to each corner of the ring steel bars in the fourth step to finish the installation.

In the embodiment 3, two points are ensured when the upper precast concrete shear wall and the lower precast concrete shear wall are butted in the fourth step in the embodiment 2, the distance between the bent anchoring steel bar 2-1 and the annular anchoring steel bar 2-2 of the upper precast concrete shear wall and the lower precast concrete shear wall is not more than 50mm, and a supporting structure is arranged between the two precast concrete shear walls to ensure that the bent anchoring steel bar 2-1 and the annular anchoring steel bar 2-2 of the two precast concrete shear walls do not contact with each other. Due to the arrangement, the bending and bending of the bent anchoring steel bar 2-1 and the annular anchoring steel bar 2-2 of the precast concrete shear wall can be avoided, and the structural strength of connection of the upper wall and the lower wall can be fully ensured.

The other structure of this embodiment is the same as embodiment 2.

The invention is not exhaustive and is common general knowledge in the art.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (3)

1. An installation method of an assembled shear wall vertical connection structure convenient for construction comprises connection of a vertical component and a horizontal component, wherein the vertical component and the horizontal component respectively comprise a precast concrete shear wall (1) and a precast floor slab (3), and is characterized in that:
the upper end face of the precast concrete shear wall (1) is provided with a plurality of annular anchoring reinforcing steel bars (2-2) in parallel, the lower end face of the precast concrete shear wall (1) is provided with a plurality of bent anchoring reinforcing steel bars (2-1), bending hooks of the bent anchoring reinforcing steel bars (2-1) face the inner side of the precast concrete shear wall (1), the bending angle of the end part of each bent anchoring reinforcing steel bar (2-1) is 135 degrees, and the periphery of the precast floor slab (3) is provided with a plurality of annular anchoring reinforcing steel bars (2-2); the vertical component connection comprises vertical butt joint of a precast concrete shear wall (1) and butt joint of a precast floor slab (3), bent anchoring steel bars (2-1) on the lower side of the precast concrete shear wall (1) on the upper layer are crossly buckled with annular anchoring steel bars (2-2) on the upper side of the precast concrete shear wall (1) on the lower layer and annular anchoring steel bars (2-2) of the precast floor slab (3), and horizontal steel bars (2-4) are inserted to form framework steel bars of a hidden beam; the annular anchoring steel bars (2-2) and the bent anchoring steel bars (2-1) are all through long steel bars (2) vertically penetrating through the precast concrete shear wall (1) or the precast floor slab (3), and the annular anchoring steel bars (2-2) and the bent anchoring steel bars (2-1) are end parts of the through long steel bars (2) exposed out of concrete;
the mounting method comprises the following steps of mounting and connecting vertical components and mounting and connecting horizontal components, wherein the mounting and connecting vertical components comprise the following steps:
the method comprises the following steps: installing and fixing the lower precast concrete shear wall (1) to a designed position;
step two: horizontally hoisting the precast floor slabs (3) on two sides of the precast concrete shear wall (1) in the first step, and enabling the annular anchoring steel bars (2-2) on the upper part of the precast concrete shear wall (1) on the lower layer in the first step and the annular anchoring steel bars (2-2) at the end part of the precast floor slabs (3) to be mutually crossed and buckled to form annular steel bars;
step three: after the annular anchoring steel bars (2-2) at the upper part of the lower precast concrete shear wall (1) and the annular anchoring steel bars (2-2) at the end part of the precast floor slab (3) are mutually crossed and buckled in the step two, penetrating horizontal steel bars (2-4) with designed number into the buckled annular steel bars, and temporarily fixing;
step four: the prefabricated concrete shear wall (1) on the upper layer is installed, and when the prefabricated concrete shear wall (1) on the upper layer is installed, the prefabricated concrete shear wall (1) on the middle-lower layer in the third step is vertically arranged from top to bottom, so that the horizontal steel bars (2-4) can smoothly pass through the neutral positions in the middle of the bent anchoring steel bars (2-1) at the bottom of the prefabricated concrete shear wall (1) on the upper layer;
step five: removing the temporary fixation of the horizontal steel bars (2-4) in the third step, and binding the horizontal steel bars (2-4) to each corner of the ring steel bars in the fourth step to finish the installation.
2. The installation method of the fabricated shear wall vertical connection structure convenient for construction according to claim 1, characterized in that: truss ribs are arranged in the precast floor slab (3), and are equal-height truss ribs (3-1) or spaced equal-height truss ribs (3-2).
3. The installation method of the fabricated shear wall vertical connection structure convenient for construction according to claim 1 or 2, wherein: two points are guaranteed when the upper precast concrete shear wall and the lower precast concrete shear wall (1) are butted in the fourth step, the distance between the bent anchoring steel bar (2-1) and the annular anchoring steel bar (2-2) of the upper precast concrete shear wall and the lower precast concrete shear wall is not larger than 50mm, a supporting structure is arranged between the two precast concrete shear walls, and the bent anchoring steel bar (2-1) and the annular anchoring steel bar (2-2) of the two precast concrete shear walls are not in contact with the wall bodies of each other.
CN201811197255.6A 2018-10-15 2018-10-15 Assembled shear wall vertical connection structure convenient to construct and installation method CN109184028B (en)

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CN109184028B true CN109184028B (en) 2020-09-29

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CN110565817A (en) * 2019-09-09 2019-12-13 重庆中科建设(集团)有限公司 Construction method for concrete body slurry anchor connection

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CH684108A5 (en) * 1991-11-25 1994-07-15 Construmat Ag Rebar connection.
CN203160515U (en) * 2013-04-19 2013-08-28 中国五冶集团有限公司 Bi-directionally opening and counter pulling stirrup
CN103711238B (en) * 2013-12-28 2016-05-04 中国建筑第七工程局有限公司 Assembled ring muscle fastens and is anchored concrete shear wall structure system
CN106088355A (en) * 2016-08-25 2016-11-09 初明进 A kind of precast concrete interlayer connecting method
CN109184032B (en) * 2018-10-15 2020-07-24 中国建筑第七工程局有限公司 Assembled shear wall vertical connection structure convenient to install and installation method

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