阅读说明：本技术 一种装配式空心剪力墙竖向连接构造 (Vertical connection structure of assembled hollow shear wall ) 是由 张锡治 刘岳阳 李磊 窦玉斌 于 2020-05-25 设计创作，主要内容包括：一种装配式空心剪力墙竖向连接构造,包括上、下相对连接的上层带暗柱预制空心墙体、下层带暗柱预制空心墙体和中间楼板。本连接结构所连接的带暗柱预制空心墙体为四面均不出筋,易于标准化生产和运输,预制空心墙体宽度易于变更,具有较好的适应性,这对推动建筑工业化和住宅产业化有着非常大的积极作用；预制空心墙体在不降低普通预制混凝土墙体承载力和抗侧刚度的基础上减轻了自重,减小了地震作用,在性能化抗震设计中取得非常重大突破,同时因其自重较轻,在施工过程中易于吊装,降低施工成本。(The utility model provides a vertical connection structure of assembled hollow shear wall, includes upper strata area dark post prefabricated hollow wall body, lower floor area dark post prefabricated hollow wall body and middle floor of upper and lower looks relatively connected. The prefabricated hollow wall body with the embedded columns connected by the connecting structure has no ribs on four sides, is easy for standardized production and transportation, has easy change of the width of the prefabricated hollow wall body and better adaptability, and has great positive effect on promoting building industrialization and housing industrialization; the prefabricated hollow wall reduces the dead weight on the basis of not reducing the bearing capacity and the lateral stiffness of the common prefabricated concrete wall, reduces the earthquake action, obtains very important breakthrough in the performance-based earthquake-proof design, and is easy to hoist in the construction process and reduces the construction cost due to the light dead weight.)

1. The utility model provides a vertical connection structure of assembled hollow shear wall, includes upper 1, lower floor of the prefabricated hollow wall body of hidden post in upper band, the prefabricated hollow wall body of hidden post 2 of lower floor area and intermediate floor 5 of upper and lower phase-to-phase connection, its characterized in that: an upper-layer vertical distribution reinforcing steel bar 1-1 and an upper-layer horizontal distribution reinforcing steel bar 1-2 are manufactured in the upper-layer column prefabricated hollow wall body 1, an upper-layer groove pouring hole 1-6 and an upper-layer wall body hole 1-7 which longitudinally penetrate through the wall body are manufactured at the top of the upper-layer column prefabricated hollow wall body 1, an upper-layer closed groove 1-9 is further manufactured at the bottom of the upper-layer groove pouring hole 1-6, upper-layer columns are respectively manufactured at two sides of the upper-layer column prefabricated hollow wall body 1, and upper-layer column holes 1-8 are further manufactured in the upper-layer columns; the lower-layer prefabricated hollow wall with the embedded columns is internally provided with lower-layer vertical distribution reinforcing steel bars 2-1 and lower-layer horizontal distribution reinforcing steel bars 2-2, the lower-layer prefabricated hollow wall with the embedded columns is also provided with lower-layer groove pouring holes 2-6 and lower-layer wall holes 2-7 which longitudinally penetrate through the wall, and the two sides of the lower-layer prefabricated hollow wall with the embedded columns are respectively provided with lower-layer embedded columns; the upper and lower prefabricated hollow wall bodies with the embedded columns are fixedly connected at the middle floor slab 5 through cast-in-place inner tooth grooves 3 prefabricated in the lower prefabricated hollow wall bodies with the embedded columns.

2. The vertical connection structure of the assembled hollow shear wall according to claim 1, wherein: the upper-layer hidden column comprises upper-layer hidden column construction steel bars 1-3 arranged on the periphery of the hidden column, upper-layer hidden column longitudinal bars 1-4 longitudinally arranged and upper-layer hidden column stirrups 1-5 fixedly connected with the upper-layer hidden column construction steel bars 1-3 and the upper-layer hidden column longitudinal bars 1-4. The lower-layer hidden column comprises lower-layer hidden column construction steel bars 2-3 arranged on the periphery of the hidden column, lower-layer hidden column longitudinal bars 2-4 longitudinally arranged, and lower-layer hidden column stirrups 2-5 for fixing the lower-layer hidden column construction steel bars 2-3 and the lower-layer hidden column longitudinal bars 2-4.

3. The vertical connection structure of the assembled hollow shear wall according to claim 2, wherein: the lower ends of the upper-layer embedded column longitudinal ribs 1-4 and the upper ends of the lower-layer embedded column longitudinal ribs 2-4 are both provided with threads, and the upper-layer embedded column longitudinal ribs and the lower-layer embedded column longitudinal ribs are fixedly connected with the upper-layer embedded column prefabricated hollow wall body and the lower-layer embedded column prefabricated hollow wall body at the middle floor slab 5 through threaded sleeves.

4. The vertical connection structure of the assembled hollow shear wall according to claim 1, wherein: the cast-in-place inner tooth socket 3 is poured into an upper-layer closed groove 1-9 at the bottom of an upper-layer hidden column prefabricated hollow wall body 1, rectangular hole inner inserting ribs 3-1 and inner tooth socket horizontally distributed reinforcing steel bars 3-2 are arranged in the inner tooth socket 3, the upper parts of the rectangular hole inner inserting ribs 3-1 extend into the upper-layer closed groove 1-9, the lower parts of the rectangular hole inner inserting ribs are inserted into a lower-layer hidden column prefabricated hollow wall body 2, and the bottom of the rectangular hole inner inserting ribs is provided with rubber closed plates 3-3 which are the same as the lower-layer wall body holes 2-7 in shape and size.

5. The vertical connection structure of the assembled hollow shear wall according to claim 2, wherein: the upper and lower layer hidden column stirrups can adopt common stirrups and can also adopt spiral stirrups.

6. The vertical connection structure of the assembled hollow shear wall according to claim 2, wherein: the longitudinal bars of the upper and lower layers of the embedded columns can adopt a single or a plurality of longitudinal bars.

7. The vertical connection structure of the assembled hollow shear wall according to claim 1, wherein: the inclination angle of the side wall of the upper-layer closed groove 1-9 is not more than 90 degrees, and the depth is 200-400 mm.

8. The vertical connection structure of the assembled hollow shear wall according to claim 1, wherein: the upper layer groove pouring holes 1-6 are all poured concrete in the holes.

9. The vertical connection structure of the assembled hollow shear wall according to claim 1, wherein: the upper-layer hidden column holes 1-8 are all poured concrete, and the vertical holes of the rest walls are not poured or are partially poured concrete.

Technical Field

The invention belongs to the field of building structures, and particularly relates to a vertical connection structure of an assembled hollow shear wall.

Background

The shear wall structure building has the advantages of good integrity, high bearing capacity, no indoor columns, outstanding corrugated performance, high lateral rigidity resistance and the like, and is widely applied to the field of buildings. The hollow shear wall structure system is characterized in that a series of vertical holes are formed in the wall body along the wall height direction on the basis of the traditional shear wall system, the hollow shear wall structure system has the advantages of light self weight, small earthquake action and the like on the basis of not weakening the advantages of the traditional shear wall structure, and has very wide application prospect in low-rise and multi-rise houses. The traditional cast-in-place shear wall has a series of problems of huge field wet workload, large labor demand, serious environmental pollution and the like, so that the nation proposes development openings of building industrialization and housing industrialization, and industrialized clusters mainly based on fabricated buildings conform to the development of the times and are the development trend of future buildings.

The development of the fabricated building is mainly limited by connecting nodes with the concept of equal cast-in-place as a core, while the fabricated hollow shear wall structure mainly bears horizontal load, and the mechanical property of the vertical connecting nodes is particularly important; the connection mode of the vertically distributed steel bars of the prefabricated shear wall mainly comprises sleeve grouting connection and slurry anchor lap joint connection; the sleeve grouting connection has the defects of high requirement on the alignment precision of the components, difficult quality detection and high price, and the quality of the hole forming of the slurry anchor lap joint is not guaranteed and a rigidity weakening area is easy to form. Above connected mode all is not applicable to the connection of the vertical distribution reinforcing bar of assembled hollow shear wall, and the connection of dark post longitudinal reinforcement is also a problem that awaits the solution promptly moreover, consequently, it is necessary to develop a connected node suitable for taking dark post assembled hollow shear wall.

Disclosure of Invention

The invention provides a vertical connecting structure of an assembled hollow shear wall for solving the technical problems in the prior art, the structure node has definite force transmission, reasonable stress, simple structure, lower cost, higher shear bearing capacity and good earthquake resistance, and the connecting node and the connecting prefabricated hollow wall body thereof are easy to industrialize and standardize.

The technical scheme adopted by the invention for solving the technical problems in the prior art is as follows:

a vertical connecting structure of an assembled hollow shear wall comprises an upper-layer embedded column prefabricated hollow wall body 1, a lower-layer embedded column prefabricated hollow wall body 2 and a middle floor slab 5 which are connected in an upper-lower mode, wherein upper-layer vertical distribution reinforcing steel bars 1-1 and upper-layer horizontal distribution reinforcing steel bars 1-2 are manufactured in the upper-layer embedded column prefabricated hollow wall body 1, upper-layer groove pouring holes 1-6 and upper-layer wall body holes 1-7 which penetrate through the wall body longitudinally are manufactured at the top of the upper-layer embedded column prefabricated hollow wall body 1, upper-layer closed grooves 1-9 are further manufactured at the bottoms of the upper-layer groove pouring holes 1-6, upper-layer embedded columns are manufactured on two sides of the upper-layer embedded column prefabricated hollow wall body 1 respectively, and upper-layer embedded column holes 1-8 are further manufactured in the upper-layer embedded columns; the lower-layer prefabricated hollow wall with the embedded columns is internally provided with lower-layer vertical distribution reinforcing steel bars 2-1 and lower-layer horizontal distribution reinforcing steel bars 2-2, the lower-layer prefabricated hollow wall with the embedded columns is also provided with lower-layer groove pouring holes 2-6 and lower-layer wall holes 2-7 which longitudinally penetrate through the wall, and the two sides of the lower-layer prefabricated hollow wall with the embedded columns are respectively provided with lower-layer embedded columns; the upper and lower prefabricated hollow wall bodies with the embedded columns are fixedly connected at the middle floor slab 5 through cast-in-place inner tooth grooves 3 prefabricated in the lower prefabricated hollow wall bodies with the embedded columns.

Preferably, the upper-layer hidden column comprises upper-layer hidden column construction steel bars 1-3 arranged on the periphery of the hidden column, upper-layer hidden column longitudinal bars 1-4 longitudinally arranged and upper-layer hidden column stirrups 1-5 fixedly connecting the upper-layer hidden column construction steel bars 1-3 and the upper-layer hidden column longitudinal bars 1-4. The lower-layer hidden column comprises lower-layer hidden column construction steel bars 2-3 arranged on the periphery of the hidden column, lower-layer hidden column longitudinal bars 2-4 longitudinally arranged, and lower-layer hidden column stirrups 2-5 for fixing the lower-layer hidden column construction steel bars 2-3 and the lower-layer hidden column longitudinal bars 2-4.

Preferably, the lower ends of the upper-layer embedded column longitudinal ribs 1-4 and the upper ends of the lower-layer embedded column longitudinal ribs 2-4 are both provided with threads, and the upper-layer embedded column longitudinal ribs and the lower-layer embedded column longitudinal ribs are fixedly connected with the upper-layer embedded column prefabricated hollow wall body and the lower-layer embedded column prefabricated hollow wall body at the middle floor slab 5 through threaded sleeves.

Preferably, the cast-in-place inner tooth socket 3 is poured into an upper-layer closed groove 1-9 at the bottom of the upper-layer prefabricated hollow wall body with the embedded column, rectangular hole inner inserting ribs 3-1 and inner tooth socket horizontally distributed reinforcing steel bars 3-2 are arranged in the inner tooth socket 3, the upper parts of the rectangular hole inner inserting ribs 3-1 extend into the upper-layer closed groove 1-9, the lower parts of the rectangular hole inner inserting ribs are inserted into the lower-layer prefabricated hollow wall body with the embedded column 2, and the bottom of the rectangular hole inner inserting ribs is provided with rubber closed plates 3-3 which are the same as the lower-layer wall body holes 2-7 in shape and size.

Preferably, the hoops of the upper and lower layers of the hidden columns can adopt common hoops or spiral hoops.

Preferably, the longitudinal ribs of the upper and lower layers of the embedded columns can adopt a single longitudinal rib or a plurality of longitudinal ribs.

Preferably, the inclination angle of the side wall of the upper-layer closed groove 1-9 is not more than 90 degrees, and the depth is 200-400 mm.

Preferably, the upper layer groove pouring holes 1-6 are all poured concrete in the holes.

Preferably, the upper-layer hidden column holes 1-8 are all poured concrete, and the vertical holes of the rest walls are not poured or are partially poured concrete.

The invention has the advantages and positive effects that:

the prefabricated hollow wall with the embedded columns connected by the connecting structure has no ribs on four sides, is easy for standardized production and transportation, has easy change of the width of the prefabricated hollow wall and better adaptability, and plays a great positive role in promoting building industrialization and housing industrialization; the prefabricated hollow wall reduces the dead weight on the basis of not reducing the bearing capacity and the lateral stiffness of the common prefabricated concrete wall, reduces the earthquake action, obtains very important breakthrough in the performance-based earthquake-proof design, and is easy to hoist in the construction process and reduces the construction cost due to the light dead weight.

Secondly) the connection structure adopts wet connection at the hidden column and the inner tooth socket, and utilizes the advantages of good adaptability, simple operation and the like of the wet connection, the hidden column longitudinal rib connection adopts the simplest threaded sleeve connection, and has the advantages of low manufacturing cost, easy quality control and the like compared with the sleeve grouting connection; the connecting joint has simple stress performance, namely, the middle inner tooth groove part of the prefabricated wall body mainly provides the shear-resistant bearing capacity of the section of the hollow shear wall, the longitudinal ribs of the embedded columns on the two sides mainly provide the bending-resistant bearing capacity of the hollow shear wall, the interface stress is simple and clear, the calculation is simple and clear, and the design and the construction are convenient.

In conclusion, the connecting structure is simple and clear in stress and easy to calculate, the connecting nodes are all in wet connection, the advantages of reliability in connection of the wet-type connecting nodes, simplicity in operation and the like are fully exerted, the complex construction process of supporting a template is omitted, the connected prefabricated hollow wall has higher standardization and industrialization, and the whole connected assembly type building system is a great breakthrough in earthquake resistance design; the invention achieves the purposes of improving the assembly quality and reducing the cost by improving the stress performance of the assembled shear wall and simplifying the construction process.

Drawings

FIG. 1 is a schematic view of a rib arrangement structure before connection according to the present invention;

FIG. 2 is a cross-sectional view taken along line 1-1 of FIG. 1 in accordance with the present invention;

FIG. 3 is a cross-sectional view taken along line 2-2 of FIG. 1 in accordance with the present invention;

FIG. 4 is a schematic view of the embedded column of the present invention after the connection of the longitudinal ribs is completed;

FIG. 5 is a schematic view of the present invention after the connection is completed;

FIG. 6 is a cross-sectional view taken along line 1-1 of FIG. 5 in accordance with the present invention;

FIG. 7 is a cross-sectional view taken along line 2-2 of FIG. 5 in accordance with the present invention;

in the figure: 1. the upper-layer prefabricated hollow wall with the embedded columns comprises, by weight, 1-1 parts of upper-layer vertically-distributed reinforcing steel bars, 1-2 parts of upper-layer horizontally-distributed reinforcing steel bars, 1-3 parts of upper-layer embedded column structural reinforcing steel bars, 1-4 parts of upper-layer embedded column longitudinal reinforcing steel bars, 1-5 parts of upper-layer embedded column stirrups, 1-6 parts of upper-layer groove pouring holes, 1-7 parts of upper-layer wall holes, 1-8 parts of upper-layer embedded column holes, 1-9 parts of upper-layer closed grooves; 2. 2-1 parts of lower-layer prefabricated hollow wall with hidden columns, 2-2 parts of lower-layer vertically-distributed reinforcing steel bars, 2-2 parts of lower-layer horizontally-distributed reinforcing steel bars, 2-3 parts of lower-layer hidden column constructional reinforcing steel bars, 2-4 parts of lower-layer hidden column longitudinal reinforcing steel bars, 2-5 parts of lower-layer hidden column stirrups, 2-6 parts of lower-layer groove pouring holes, 2-7 parts of lower-layer wall holes; 3. the steel plate comprises, by weight, 3-1 parts of inner tooth grooves, 3-2 parts of inserted steel bars in rectangular holes, 3-3 parts of horizontally distributed steel bars in the inner tooth grooves, a rubber sealing plate, 4 parts of threaded sleeves, 5 parts of intermediate floor slabs.

Detailed Description

In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:

referring to fig. 1 to 7, a vertical connection structure of an assembled hollow shear wall includes an upper-layer precast hollow wall body 1 with embedded columns, a lower-layer precast hollow wall body 2 with embedded columns and a middle floor slab 5, which are connected with each other in an upper-lower manner, wherein the upper-layer precast hollow wall body with embedded columns and the lower-layer precast hollow wall body are precast together with the upper-layer and lower-layer embedded columns, and a series of holes are formed in the wall body along the height direction of the wall; the upper and lower layers of prefabricated hollow walls with the embedded columns are connected with the embedded columns with holes at two ends of the prefabricated hollow walls and the cast-in-situ inner tooth grooves in the middle; the hidden column with holes is provided with holes with a certain size along the column height direction, and four corners are provided with constructional steel bars and column stirrups are arranged along the column height according to the structural calculation requirement; the hidden post is indulged the muscle and is needed to set up in the hidden post hole according to structural calculation, just upper and lower floor's hidden post is indulged muscle top and bottom and all is had the screw thread, upper and lower floor's hidden post is indulged the muscle and is needed to be in before the hoist and mount of prefabricated hollow wall body tentatively be fixed in the hidden post hole, treat prefabricated hollow wall body hoist and mount be about to take one's place before through threaded sleeve with the hidden post of lower floor's prefabricated hollow wall body both sides is indulged the muscle and is linked to each other, and threaded sleeve and hidden post are indulged muscle connected node and need reach reinforcing bar one-level.

An upper-layer vertical distribution reinforcing steel bar 1-1 and an upper-layer horizontal distribution reinforcing steel bar 1-2 are manufactured in the upper-layer column prefabricated hollow wall body 1, an upper-layer groove pouring hole 1-6 and an upper-layer wall body hole 1-7 which longitudinally penetrate through the wall body are manufactured at the top of the upper-layer column prefabricated hollow wall body 1, an upper-layer closed groove 1-9 is further manufactured at the bottom of the upper-layer groove pouring hole 1-6, upper-layer columns are respectively manufactured at two sides of the upper-layer column prefabricated hollow wall body 1, and upper-layer column holes 1-8 are further manufactured in the upper-layer columns; the lower-layer prefabricated hollow wall with the embedded columns is internally provided with lower-layer vertical distribution reinforcing steel bars 2-1 and lower-layer horizontal distribution reinforcing steel bars 2-2, the lower-layer prefabricated hollow wall with the embedded columns is also provided with lower-layer groove pouring holes 2-6 and lower-layer wall holes 2-7 which longitudinally penetrate through the wall, and the two sides of the lower-layer prefabricated hollow wall with the embedded columns are respectively provided with lower-layer embedded columns; the upper and lower prefabricated hollow wall bodies with the embedded columns are fixedly connected at the middle floor slab 5 through cast-in-place inner tooth grooves 3 prefabricated in the lower prefabricated hollow wall bodies with the embedded columns.

The upper-layer hidden column comprises upper-layer hidden column construction steel bars 1-3 arranged on the periphery of the hidden column, upper-layer hidden column longitudinal bars 1-4 longitudinally arranged and upper-layer hidden column stirrups 1-5 fixedly connected with the upper-layer hidden column construction steel bars 1-3 and the upper-layer hidden column longitudinal bars 1-4. The lower-layer hidden column comprises lower-layer hidden column construction steel bars 2-3 arranged on the periphery of the hidden column, lower-layer hidden column longitudinal bars 2-4 longitudinally arranged, and lower-layer hidden column stirrups 2-5 for fixing the lower-layer hidden column construction steel bars 2-3 and the lower-layer hidden column longitudinal bars 2-4.

The lower ends of the upper-layer embedded column longitudinal ribs 1-4 and the upper ends of the lower-layer embedded column longitudinal ribs 2-4 are both provided with threads, and the upper-layer embedded column longitudinal ribs and the lower-layer embedded column longitudinal ribs are fixedly connected with the upper-layer embedded column prefabricated hollow wall body and the lower-layer embedded column prefabricated hollow wall body at the middle floor slab 5 through threaded sleeves.

The cast-in-place inner tooth socket 3 is poured into an upper-layer closed groove 1-9 at the bottom of an upper-layer hidden column prefabricated hollow wall body 1, rectangular hole inner inserting ribs 3-1 and inner tooth socket horizontally distributed reinforcing steel bars 3-2 are arranged in the inner tooth socket 3, the upper parts of the rectangular hole inner inserting ribs 3-1 extend into the upper-layer closed groove 1-9, the lower parts of the rectangular hole inner inserting ribs are inserted into a lower-layer hidden column prefabricated hollow wall body 2, and the bottom of the rectangular hole inner inserting ribs is provided with rubber closed plates 3-3 which are the same as the lower-layer wall body holes 2-7 in shape and size.

The groove pouring hole is a vertical hole of the prefabricated hollow wall body, concrete is poured into the groove through the top of the prefabricated hollow wall body, the rectangular width of the rectangular hole inner inserted bar is the length of the inner diameter of the hole minus 20-25 mm, and a positioner is required to be arranged in the middle of the rectangular hole inner inserted bar to ensure the position of the inserted bar in the hole; the horizontally distributed reinforcing steel bars of the inner tooth grooves are arranged in the grooves and used for pulling and connecting the inserted steel bars in the rectangular holes; and after the hoisting is finished, pouring concrete in the hidden column hole at the top of the prefabricated hollow wall body and pouring concrete in the groove through the groove pouring hole.

The upper and lower layer hidden column stirrups can adopt common stirrups and can also adopt spiral stirrups.

The longitudinal bars of the upper and lower layers of the embedded columns can adopt a single or a plurality of longitudinal bars.

The inclination angle of the side wall of the upper-layer closed groove 1-9 is not more than 90 degrees, and the depth is 200-400 mm.

The upper layer groove pouring holes 1-6 are all poured concrete in the holes.

The upper-layer hidden column holes 1-8 are all poured concrete, and the vertical holes of the rest walls are not poured or are partially poured concrete.

The upper-layer embedded column longitudinal bars 1-4 are preliminarily fixed in upper-layer embedded column holes 1-8 before being hoisted, the upper-layer embedded column prefabricated hollow wall 1 is connected with embedded column longitudinal bars 2-4 on two sides of the lower-layer prefabricated hollow wall through threaded sleeves 4 to complete embedded column longitudinal bar connection before being hoisted in place, meanwhile, the rectangular hole inner inserted bars 3-1 and the inner tooth groove horizontal distribution steel bars 3-2 penetrate into the closed grooves 1-9 of the upper-layer prefabricated hollow wall, and concrete is respectively poured into the embedded column holes 1-8 and the closed grooves 1-9 through the embedded column holes 1-8 and the groove pouring holes 1-6 at the top of the prefabricated hollow wall 1 to form node shear-resistant sections.

Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit and scope of the present invention as defined in the appended claims.