CN112064824A - Combined-connection prefabricated shear wall system - Google Patents
Combined-connection prefabricated shear wall system Download PDFInfo
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- CN112064824A CN112064824A CN202010874108.9A CN202010874108A CN112064824A CN 112064824 A CN112064824 A CN 112064824A CN 202010874108 A CN202010874108 A CN 202010874108A CN 112064824 A CN112064824 A CN 112064824A
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- prefabricated
- steel bars
- reinforcing steel
- wall plate
- prefabricated wallboard
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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
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
Abstract
The invention discloses a prefabricated shear wall system in combined connection, which has the advantages of good stress performance, simple and convenient construction and low manufacturing cost. The combined and connected prefabricated shear wall system comprises an upper prefabricated wall plate (1) vertically placed above a floor slab (4) and a lower prefabricated wall plate (2) vertically placed below the floor slab (4), wherein the lower end of the upper prefabricated wall plate (1) is opposite to the upper end of the lower prefabricated wall plate (2), and the lower end of the upper prefabricated wall plate (1) and blind column areas on two sides of the upper end of the lower prefabricated wall plate (2) are connected into a whole by grouting sleeves by a mortar-setting method; the lower end of the upper prefabricated wallboard (1) is connected with the middle distribution reinforced bar area at the upper end of the lower prefabricated wallboard (2) by a hoop, and the post-pouring micro-expansion concrete is poured.
Description
Technical Field
The invention belongs to the technical field of fabricated building walls, and particularly relates to a prefabricated shear wall system with a hoop and a grouting sleeve which are in combined connection and have the advantages of strong bearing capacity, simplicity and convenience in construction and low manufacturing cost.
Background
The fabricated concrete structure has the advantages of high mechanization degree, reliable quality, convenient construction, energy conservation, environmental protection and the like, and is an application technology which is widely popularized and has sustainable development. The fabricated concrete shear wall structure is an important composition mode of a fabricated building, and due to the adoption of industrial production and mechanical construction, the cast-in-place, formwork erecting and maintenance time on site is shortened, the production efficiency is improved, and the construction period is shortened.
The assembled shear wall structure forms an integral structural form through a reliable connection mode. The core link of the vertical steel bar connection technology assembly type concrete shear wall structure. The vertical steel bar connection mode of the existing fabricated concrete shear wall structure mainly comprises sleeve grouting connection, slurry anchor connection, bolt connection and the like.
These forms of connection also present a number of problems in implementation: firstly, the connection quantity is large, and the material cost of the connection fittings is high; secondly, the requirements on manufacturing and construction precision are high, the installation in place is difficult, and the construction efficiency is low; thirdly, the construction quality of the field grouting connection is difficult to guarantee.
Disclosure of Invention
The invention aims to provide a prefabricated shear wall system in combined connection, which has the advantages of good stress performance, simple and convenient construction and low manufacturing cost.
The technical solution for realizing the purpose of the invention is as follows:
a combined and connected prefabricated shear wall system comprises an upper prefabricated wall plate 1 vertically placed above a floor slab 4 and a lower prefabricated wall plate 2 vertically placed below the floor slab 4, wherein the lower end of the upper prefabricated wall plate 1 is opposite to the upper end of the lower prefabricated wall plate 2, and the lower end of the upper prefabricated wall plate 1 and blind column areas on two sides of the upper end of the lower prefabricated wall plate 2 are connected into a whole through grouting sleeves by a mortar grouting method; the lower end of the upper prefabricated wallboard 1 is connected with the middle distribution reinforced bar area at the upper end of the lower prefabricated wallboard 2 by a hoop, and the post-pouring micro-expansion concrete is poured.
Preferably, the first and second electrodes are formed of a metal,
the upper prefabricated wall plate 1 comprises upper U-shaped closed reinforcing steel bars 11 vertically arranged in a wall body, upper grouting sleeves 12 vertically arranged and upper embedded column reinforcing steel bars 13;
the upper U-shaped closed reinforcing steel bars 11 replace common distributed reinforcing steel bars and are arranged in the middle area of the upper prefabricated wall plate 1, the upper end and the lower end of the upper U-shaped closed reinforcing steel bars are closed in a U shape, and the lower end of the upper U-shaped closed reinforcing steel bars is flush with the lower end face of the upper prefabricated wall plate 1;
the upper grouting sleeve 12 is arranged in a hidden column area at the lower end of the upper prefabricated wall plate 1;
the lower end of the upper hidden column steel bar 13 is fixedly connected with the upper grouting sleeve 12, and the upper end of the upper hidden column steel bar extends out of the upper end face of the upper prefabricated wall plate 1.
Preferably, the lower prefabricated wall panel 2 comprises lower U-shaped closed steel bars 21 vertically arranged in a wall body, lower grouting sleeves 22 vertically arranged and lower embedded column steel bars 23;
the lower U-shaped closed reinforcing steel bars 21 replace common distributed reinforcing steel bars and are arranged in the middle area of the lower prefabricated wallboard 2, the upper end and the lower end of the lower U-shaped closed reinforcing steel bars are closed in a U shape, and the upper end of the lower U-shaped closed reinforcing steel bars extends out of the upper end surface of the lower prefabricated wallboard 2;
the lower grouting sleeve 22 is arranged in the lower end embedded column area of the lower prefabricated wall plate 2;
the upper end of the lower embedded column steel bar 23 extends out of the upper end face of the lower prefabricated wall plate 2 and is anchored on the upper grouting sleeve 12, and the lower end of the lower embedded column steel bar is fixedly connected with the lower grouting sleeve 22.
Compared with the prior art, the invention has the following remarkable advantages:
1. the stress performance is good: according to the stress characteristics of the shear wall, different connection forms are adopted in different areas. The hidden column area of the shear wall is stressed more and damaged more seriously under the action of earthquake load, and the earthquake-resistant performance can be ensured by using the grouting sleeve for connection; horizontal shearing force is mainly born by steel bars distributed in the middle area of the shear wall, and the sections are connected in a hoop form of U-shaped closed steel bars, so that shearing-resistant bearing capacity can be effectively improved.
2. The cost is low: compared with the existing grouting sleeve connecting system, the upper prefabricated wallboard and the lower prefabricated wallboard are connected by the hoop and the grouting sleeve, so that the number of sleeves is reduced, and the cost is effectively saved.
3. The construction is convenient: the invention only uses the grouting sleeve to connect at the hidden column, the upper U-shaped closed steel bar and the lower U-shaped closed steel bar are connected by the hoop, the construction is more convenient, and the construction speed is faster.
The invention is described in further detail below with reference to the figures and the detailed description.
Drawings
FIG. 1 is a schematic structural view of a composite connected prefabricated shear wall system of the present invention;
FIG. 2 is a schematic view of the upper prefabricated wall panel structure of FIG. 1;
FIG. 3 is a schematic diagram of the U-shaped closed reinforcing bars in FIG. 1 being overlapped in a staggered manner;
fig. 4 is a schematic view of the grout sleeve of fig. 1.
In the figure, an upper prefabricated wall plate 1, an upper U-shaped closed reinforcing steel bar 11, an upper grouting sleeve 12, an upper hidden column reinforcing steel bar 13, a lower prefabricated wall plate 2, a lower U-shaped closed reinforcing steel bar 21, a lower grouting sleeve 22, a lower hidden column reinforcing steel bar 23, a through long reinforcing steel bar 3, a floor slab 4, post-cast micro-expansion fine stone concrete 5 and a grout layer 6.
Detailed Description
As shown in fig. 1, the combined prefabricated shear wall system of the present invention comprises an upper prefabricated wall panel 1 vertically placed on a floor slab 4 and a lower prefabricated wall panel 2 vertically placed below the floor slab 4, wherein the lower end of the upper prefabricated wall panel 1 is opposite to the upper end of the lower prefabricated wall panel 2. The lower end of the upper prefabricated wall plate 1 and the hidden column areas on two sides of the upper end of the lower prefabricated wall plate 2 are connected into a whole by grouting sleeves by a mortar sitting method;
the lower end of the upper prefabricated wallboard 1 is connected with the middle distribution reinforced bar area at the upper end of the lower prefabricated wallboard 2 by a hoop, and the post-pouring micro-expansion concrete is poured.
Preferably, as shown in figures 1 and 2,
the upper prefabricated wall plate 1 comprises upper U-shaped closed reinforcing steel bars 11 vertically arranged in a wall body, upper grouting sleeves 12 vertically arranged and upper embedded column reinforcing steel bars 13;
the upper U-shaped closed reinforcing steel bars 11 replace common distributed reinforcing steel bars and are arranged in a reinforcing steel bar distribution area in the middle of the upper prefabricated wall plate 1, the upper end and the lower end of each upper U-shaped closed reinforcing steel bar are closed in a U shape, and the lower end of each upper U-shaped closed reinforcing steel bar is flush with the lower end face of the upper prefabricated wall plate 1;
the upper grouting sleeve 12 is arranged in a hidden column area at the lower end of the upper prefabricated wall plate 1;
the lower end of the upper hidden column steel bar 13 is fixedly connected with the upper grouting sleeve 12, and the upper end of the upper hidden column steel bar extends out of the upper end face of the upper prefabricated wall plate 1.
Preferably, as shown in fig. 1, the lower prefabricated wall panel 2 comprises lower U-shaped closed steel bars 21 vertically placed in a wall body, lower grouting sleeves 22 vertically placed, and lower hidden column steel bars 23;
the lower U-shaped closed reinforcing steel bars 21 replace common distributed reinforcing steel bars and are arranged in the middle distributed reinforcing steel bar area of the lower prefabricated wall plate 2, the upper end and the lower end of the lower U-shaped closed reinforcing steel bars are closed in a U shape, and the upper end of the lower U-shaped closed reinforcing steel bars extends out of the upper end face of the lower prefabricated wall plate 2;
the lower grouting sleeve 22 is arranged in the lower end embedded column area of the lower prefabricated wall plate 2;
the upper end of the lower embedded column steel bar 23 extends out of the upper end face of the lower prefabricated wall plate 2 and is anchored on the upper grouting sleeve 12, and the lower end of the lower embedded column steel bar is fixedly connected with the lower grouting sleeve 22.
As shown in fig. 3 and 4, as an improvement, the lower U-shaped closed reinforcing steel bar 21 extends out of the upper end part of the lower prefabricated wall panel 2 and is overlapped with the lower part of the upper U-shaped closed reinforcing steel bar 11 in a staggered manner to form a hoop, and a through-length reinforcing steel bar 3 perpendicular to the plane of the hoop is fixedly arranged on the inner sides of four corners of the hoop.
As a modification, as shown in fig. 4, the lower hidden column reinforcement 23 protrudes from the upper end portion of the lower prefabricated wall panel 2 and is anchored in the upper grouting sleeve 12.
The hoop connecting area is fixedly connected by adopting cast-in-place micro-expansion fine stone concrete.
And the upper prefabricated wall plate 1 and the hidden column areas at two sides of the lower prefabricated wall plate 2 are connected by grouting sleeves by a mortar-setting method.
And after the lower prefabricated wall plate 2 is connected with the floor slab 4 in a pouring manner, a grout layer 6 is laid on the floor slab 4. The upper prefabricated wall panel 1 is lifted up so that the embedded column reinforcement 23 of the lower prefabricated wall panel 2 is inserted into the upper grouting sleeve 12 and connected by the grouting process as shown in fig. 4.
At the moment, the upper U-shaped steel bar 11 and the lower U-shaped steel bar 21 are in staggered lap joint at the joint of the upper prefabricated wallboard 1 and the lower prefabricated wallboard 2 to form a hoop, and the through-length steel bars 3 vertical to the plane of the hoop are inserted into four corners in the plane of the hoop, as shown in fig. 3. The hoop connecting area at the bottom of the upper prefabricated wallboard 1 is made into a trapezoid, and micro-expansion fine aggregate concrete 5 is poured in situ.
According to the stress characteristics of the shear wall, different connection forms are adopted in different areas. The hidden column area of the shear wall is stressed more and damaged more seriously under the action of earthquake load, and the earthquake-resistant performance can be ensured by using the grouting sleeve for connection; horizontal shearing force is mainly born by steel bars distributed in the middle area of the shear wall, and the sections are connected in a hoop form of U-shaped closed steel bars, so that shearing-resistant bearing capacity can be effectively improved. Compared with the existing grouting sleeve connecting system, the upper prefabricated wallboard and the lower prefabricated wallboard are connected by the hoop and the grouting sleeve, so that the number of sleeves is reduced, and the cost is effectively saved. The invention only uses the grouting sleeve to connect at the hidden column, the upper U-shaped closed steel bar and the lower U-shaped closed steel bar are connected by the hoop, the construction is more convenient, and the construction speed is faster.
Claims (6)
1. The utility model provides a built-up connection's prefabricated shear wall system, includes vertical last prefabricated wallboard (1) of placing on floor (4) and vertical lower prefabricated wallboard (2) of placing under floor (4), it is relative with prefabricated wallboard (2) upper end down to go up prefabricated wallboard (1) lower extreme, its characterized in that:
the lower end of the upper prefabricated wallboard (1) is connected with the hidden column areas on two sides of the upper end of the lower prefabricated wallboard (2) into a whole by adopting a grouting sleeve of a mortar setting method;
the lower end of the upper prefabricated wallboard (1) is connected with the middle distribution reinforced bar area at the upper end of the lower prefabricated wallboard (2) by a hoop, and the post-pouring micro-expansion concrete is poured.
2. The precast shear wall system of claim 1, wherein:
the upper prefabricated wall board (1) comprises upper U-shaped closed reinforcing steel bars (11) vertically arranged in a wall body, upper grouting sleeves (12) vertically arranged and upper embedded column reinforcing steel bars (13);
the upper U-shaped closed reinforcing steel bars (11) replace common distributed reinforcing steel bars and are arranged in the middle area of the upper prefabricated wallboard (1), the upper end and the lower end of the upper U-shaped closed reinforcing steel bars are closed in a U shape, and the lower end of the upper U-shaped closed reinforcing steel bars is flush with the lower end face of the upper prefabricated wallboard (1);
the upper grouting sleeve (12) is arranged in a hidden column area at the lower end of the upper prefabricated wallboard (1);
the lower end of the upper hidden column steel bar (13) is fixedly connected with the upper grouting sleeve (12), and the upper end of the upper hidden column steel bar extends out of the upper end face of the upper prefabricated wall plate (1).
3. The precast shear wall system of claim 2, wherein:
the lower prefabricated wallboard (2) comprises lower U-shaped closed steel bars (21) vertically arranged in a wall body, lower grouting sleeves (22) vertically arranged and lower embedded column steel bars (23);
the lower U-shaped closed reinforcing steel bars (21) replace common distributed reinforcing steel bars and are arranged in the middle area of the lower prefabricated wallboard (2), the upper end and the lower end of the lower U-shaped closed reinforcing steel bars are closed in a U shape, and the upper end of the lower U-shaped closed reinforcing steel bars extends out of the upper end face of the lower prefabricated wallboard (2);
the lower grouting sleeve (22) is arranged in a hidden column area at the lower end of the lower prefabricated wallboard (2);
the upper end of the lower embedded column steel bar (23) extends out of the upper end face of the lower prefabricated wall plate (2), and the lower end of the lower embedded column steel bar is fixedly connected with the lower grouting sleeve (22).
4. The precast shear wall system of claim 3, wherein:
the lower U-shaped closed reinforcing steel bars (21) extend out of the upper end part of the lower prefabricated wall plate (2) and are in staggered lap joint with the lower part of the upper U-shaped closed reinforcing steel bars (11) to form hoops, and the inner sides of four corners of each hoop are fixedly provided with a through reinforcing steel bar (3) vertical to the plane of each hoop;
the lower hidden column steel bar (23) extends out of the upper end part of the lower prefabricated wall plate (2) and is anchored in the upper grouting sleeve (12).
5. The precast shear wall system of claim 4, wherein:
the hoop connecting area is fixedly connected by adopting cast-in-place micro-expansion fine stone concrete.
6. The precast shear wall system of claim 4, wherein:
the upper prefabricated wall plate (1) and the hidden column areas on two sides of the lower prefabricated wall plate (2) are connected by grouting sleeves by a mortar-setting method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010874108.9A CN112064824A (en) | 2020-08-27 | 2020-08-27 | Combined-connection prefabricated shear wall system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010874108.9A CN112064824A (en) | 2020-08-27 | 2020-08-27 | Combined-connection prefabricated shear wall system |
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| Publication Number | Publication Date |
|---|---|
| CN112064824A true CN112064824A (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010874108.9A Withdrawn CN112064824A (en) | 2020-08-27 | 2020-08-27 | Combined-connection prefabricated shear wall system |
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| CN (1) | CN112064824A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982726A (en) * | 2021-02-26 | 2021-06-18 | 青岛腾远设计事务所有限公司 | Splitting and installing method for high-coupling-beam type precast concrete wall, splitting node for high-coupling-beam type precast concrete wall, and high-coupling-beam type precast concrete wall |
-
2020
- 2020-08-27 CN CN202010874108.9A patent/CN112064824A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982726A (en) * | 2021-02-26 | 2021-06-18 | 青岛腾远设计事务所有限公司 | Splitting and installing method for high-coupling-beam type precast concrete wall, splitting node for high-coupling-beam type precast concrete wall, and high-coupling-beam type precast concrete wall |
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Application publication date: 20201211 |
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| WW01 | Invention patent application withdrawn after publication |