CN107299699B - Assembled cavity shear wall horizontal joint Alveolus type dry type connection structure - Google Patents

Assembled cavity shear wall horizontal joint Alveolus type dry type connection structure Download PDF

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CN107299699B
CN107299699B CN201710494064.5A CN201710494064A CN107299699B CN 107299699 B CN107299699 B CN 107299699B CN 201710494064 A CN201710494064 A CN 201710494064A CN 107299699 B CN107299699 B CN 107299699B
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shear wall
cavity
prefabricated
cavity shear
horizontal joint
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CN107299699A (en
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李爱群
徐刚
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Southeast University
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Southeast University
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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

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
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  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

本发明提出一种装配式空腔剪力墙水平接缝齿槽式干式连接结构，它适应了装配式空腔剪力墙易于工业化生产的特点，便于工业化生产和现场快捷安装；空腔剪力墙墙柱段主要受力纵筋全部采用套筒连接，空腔段分布钢筋竖向不连接，简化连接形式；上部空腔剪力墙空腔段下部采用预留凹槽或以空腔为连接凹槽，下部空腔剪力墙空腔段上部预留凸齿，与凹槽咬合，提高空腔剪力墙水平接缝的抗剪能力；空腔剪力墙楼层高度处预制牛腿板，预制楼板连接端预制为L型，便于现场直接螺栓连接，减少现场施工量。本发明摆脱了施工现场湿作业，便于工业化生产和绿色安装施工，可广泛应用于预制装配式混凝土剪力墙结构。

The invention proposes an assembled cavity shear wall horizontal joint and toothed slot type dry connection structure, which adapts to the characteristics of easy industrial production of the assembled cavity shear wall, and is convenient for industrial production and quick installation on site; The main stress-bearing longitudinal bars of the wall column section are all connected by sleeves, the distribution bars in the cavity section are not connected vertically, and the connection form is simplified; the lower part of the upper cavity shear wall cavity section adopts reserved grooves or uses the cavity as To connect the grooves, the upper part of the cavity section of the lower cavity shear wall is reserved with convex teeth, which are engaged with the grooves to improve the shear resistance of the horizontal joints of the cavity shear wall; the prefabricated corbel plate at the floor height of the cavity shear wall , The connection end of the prefabricated floor slab is prefabricated into an L shape, which is convenient for direct bolt connection on site and reduces the amount of on-site construction. The invention gets rid of wet operation on the construction site, is convenient for industrial production and green installation and construction, and can be widely used in prefabricated prefabricated concrete shear wall structures.

Description

Assembled cavity shear wall horizontal joint Alveolus type dry type connection structure
Technical field
The present invention relates to cavity shear wall horizontal connection technical field more particularly to assembled cavity shear wall horizontal joints Alveolus type dry type connection structure.
Background technique
Prefabricated assembled cavity shear wall structure refer to structure various components include prefabricated hollow shear wall, precast beam, Precast floor slab etc. is standardized production in factory, and then each prefabricated components are bolted at the construction field (site), weld company It connects or structure that rear pouring concrete is formed by connecting.For assembled cavity shear wall structure from heavy and light, ductility is good, each prefabricated components industry Metaplasia produces, manufacture craft can more common site concrete it is more fine, have and save that labour, construction speed is fast, is conducive to reality Existing building energy conservation is convenient for industrialized production and the advantages that mechanized construction, adapts to the developing direction of China's building industrialization.
The connection of horizontal joint is the key technology in prefabricated hollow shear wall structure between prefabricated hollow shear wall, at present Pouring concrete connection, this mode situ wet operation heavy workload, construction are multiple after common horizontal joint connection method mainly Miscellaneous, quality is difficult to ensure, is unfavorable for energy conservation and environmental protection.Therefore prefabricated assembled cavity shear wall structure needs to propose more efficient quick Horizontal joint connection type.
Summary of the invention
The present invention provides a kind of assembled cavity shear wall horizontal joint Alveolus type dry type connection structure, this kind of connection type Has the characteristics that the problems such as easy to industrialized production, to avoid the inconvenience of situ wet operation bring and energy consumption pollution.
Feature of the invention mainly includes upper layer prefabricated hollow shear wall piece, lower layer's prefabricated hollow shear wall piece, prefabricated building Plate, grout sleeve and pre-embedded bolt.
Upper layer prefabricated hollow shear wall piece and lower layer's prefabricated hollow shear wall piece of the invention is in common precast shear wall Vertical cavity is reserved at middle interval, and shear wall is divided into multiple wall columns by vertical cavity, and vertical cavity thickness direction two sides are cavity Wall.Wall column arrangement of reinforcement is similar with common column, mainly there is vertical muscle and stirrup.Cavity wall thinner thickness, arrangement of reinforcement are predominantly vertically and horizontally distributed Reinforcing bar.
Upper layer prefabricated hollow shear wall piece cavity lower part of the invention is completely through lower layer's prefabricated hollow shear wall piece cavity At perforation to upper layer precast floor slab lower surface height.Lower layer's prefabricated hollow shear wall piece prefabricated bracket plate, ox at floor height Concordant with precast floor slab lower surface on the outside of leg plate, in favor of saving space and increasing artistic architecture appearance, bracket plate is along shear wall Length direction overall length arrangement.Bracket plate is along shear wall length direction arranged for interval pre-embedded bolt, pre-embedded bolt height and prefabricated building Plate upper surface is concordant, to save space.Shearing resistance significant points are used as at bracket, shearing resistance and bending resistance arrangement of reinforcement should carry out in detail Design, which calculates, to be determined.
Precast floor slab and shear wall connecting pin of the invention is made as L-type in advance, and spiral shell is reserved in precast floor slab and shear wall connecting pin Keyhole connect convenient for scene with bracket crab bolt.Precast floor slab L-type is configured to shearing resistance significant points, shearing resistance and bending resistance arrangement of reinforcement It should carry out detailed design and calculate determination.
The vertical tension of upper layer prefabricated hollow shear wall piece and lower layer's prefabricated hollow shear wall piece of the invention in seam crossing The main vertical muscle by wall column connect power transmission with grout sleeve, and vertical muscle connect quantity view internal force with grout sleeve and determines.Cavity Vertical muscle internal force in wall is smaller, in seam crossing not through connection.
The cavity wall of upper layer prefabricated hollow shear wall piece lower end of the invention is reserved as connecting groove one or directly with lower end Cavity be connecting groove two.
The cavity wall of upper layer prefabricated hollow shear wall piece lower end of the invention is reserved as connecting groove for the moment, the prefabricated sky of lower layer Chamber shear wall piece upper end corresponding position should reserve double wedge, and double wedge penetrates through shear wall's thickness direction；There is 5-20 ° of angle in each side of double wedge Inclination, be convenient for construction and installation；Double wedge height is determined that double wedge can significantly increase horizontal shear strength by floor upper surface.
Upper layer prefabricated hollow shear wall piece of the invention directly using the cavity of lower end as connecting groove two when, the prefabricated sky of lower layer Chamber shear wall piece upper end corresponding position should reserve double wedge two, and double wedge two is extend into below cavity, two planar dimension position of double wedge by The cavity of upper layer prefabricated hollow shear wall piece determines；There is the inclination of 5-20 ° of angle in each side of double wedge two, is convenient for construction and installation；It is convex Two height of tooth is determined that double wedge can significantly increase horizontal shear strength by floor upper surface.
All contact surface site operation Shi Junxian of the invention pave thin layer cement mortar or grouting material etc. bonding material Material provides the cohesive force between shear wall and increases seam crossing shear resistance.
The beneficial effects of the present invention are:
The present invention provides a kind of assembled cavity shear wall horizontal joint Alveolus type dry type connection structure, cavity shear walls Main stress indulges muscle and all uses sleeve connection, and cavity segment distribution bar is vertically not connected to, and simplifies type of attachment；Upper cavity is cut Power wall cavity pars infrasegmentalis uses reserved groove or using cavity as connecting groove, and lower cavity shear wall cavity segment top is reserved convex Tooth is engaged with groove, improves the shear resistance of cavity shear wall horizontal joint；Prefabricated bracket at cavity shear wall story height Plate, precast floor slab connecting pin are made as L-type in advance, are directly bolted convenient for scene, reduce site operation amount.The present invention, which is got rid of, to be applied Work situ wet operation, is convenient for industrialized production and green installation, can be widely applied to prefabricated assembled concrete shear wall Structure.
Detailed description of the invention
Fig. 1 is the elevation of the embodiment 1 of assembled cavity shear wall horizontal joint Alveolus type dry type connection of the present invention.
Fig. 2 is the elevation of the embodiment 2 of assembled cavity shear wall horizontal joint Alveolus type dry type connection of the present invention.
Fig. 3 is 1-1 sectional view of the present invention.
Fig. 4 is 2-2 sectional view of the present invention.
Fig. 5 is 3-3 sectional view of the present invention.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings:
The present invention is as shown in the picture, mainly include upper layer prefabricated hollow shear wall piece 1, lower layer's prefabricated hollow shear wall piece 2, Precast floor slab 10, grout sleeve 5 and bolt 12.
Upper layer prefabricated hollow shear wall piece 1 of the present invention and lower layer's prefabricated hollow shear wall piece 2 are common prefabricated Vertical cavity 4 is reserved at interval in shear wall, and shear wall is divided into multiple wall columns 3, vertical 4 thickness direction of cavity by vertical cavity 4 Two sides are cavity wall 9.3 arrangement of reinforcement of wall column is similar with common column, mainly there is vertical muscle 6 and stirrup.9 thinner thickness of cavity wall, arrangement of reinforcement master It to be vertically and horizontally distribution bar.
1 cavity of upper layer prefabricated hollow shear wall piece of the present invention, 4 lower part is completely through lower layer's prefabricated hollow shear wall At the perforation to 10 lower surface height of upper layer precast floor slab of 2 cavity 4 of piece.Lower layer's prefabricated hollow shear wall piece 2 is pre- at floor height Bracket plate 11 processed, 11 outside of bracket plate is concordant with 10 lower surface of precast floor slab, in favor of saving space and increasing the beautiful effect of building Fruit, bracket plate 11 are arranged along shear wall length direction overall length；Bracket plate 11 is along shear wall length direction arranged for interval pre-embedded bolt 12,12 height of pre-embedded bolt is concordant with 10 upper surface of precast floor slab, to save space.Bracket plate 11 is the important portion of shearing resistance Position, shearing resistance and bending resistance arrangement of reinforcement should carry out detailed design and calculate determination.
Precast floor slab 10 of the present invention is made as L-type with shear wall connecting pin in advance, and precast floor slab 10 is connect with shear wall Prepared screw-bolt hole is held, is bolted convenient for scene with bracket plate 11.Precast floor slab L-type is configured to shearing resistance significant points, shearing resistance Detailed design, which should be carried out, with bending resistance arrangement of reinforcement calculates determination.
Upper layer prefabricated hollow shear wall piece 1 of the present invention and lower layer's prefabricated hollow shear wall piece 2 are in the perpendicular of seam crossing The vertical muscle 6 mainly passed through in wall column 3 to pulling force connect power transmission with grout sleeve 5, and vertical muscle 6 is connect in quantity view with grout sleeve 5 Power determines.Vertical muscle internal force in cavity wall 9 is smaller, in seam crossing not through connection.
The cavity wall 9 of 1 lower end of upper layer prefabricated hollow shear wall piece of the present invention is reserved as connecting groove 1 or direct With the cavity 4 of lower end for connecting groove two.
The cavity wall 9 of 1 lower end of upper layer prefabricated hollow shear wall piece of the present invention is reserved as implementation when connecting groove 1 Example 1,2 upper end corresponding position of lower layer's prefabricated hollow shear wall piece should reserve double wedge 8, and double wedge is mutually twisted with connecting groove one, convex Tooth 8 penetrates through shear wall's thickness direction；There is the inclination of 5-20 ° of angle in each side of double wedge 8, is convenient for construction and installation；8 height of double wedge is by building Plate upper surface determines that double wedge can significantly increase horizontal shear strength.
Upper layer prefabricated hollow shear wall piece 1 of the present invention is real when being directly connecting groove two with the cavity 4 of lower end Example 2 is applied, 2 upper end corresponding position of lower layer's prefabricated hollow shear wall piece should reserve double wedge 2 13, and double wedge 2 13 is extend into below cavity, 2 13 planar dimension position of double wedge is determined by the cavity 4 of upper layer prefabricated hollow shear wall piece 1；Each side of double wedge 2 13 has 5-20 ° Inclination, be convenient for construction and installation；2 13 height of double wedge is determined that double wedge can significantly increase horizontal shear strength by floor upper surface.
Pave thin layer cement mortar or grouting material etc. of all contact surface site operation Shi Junxian of the present invention is viscous Material is tied, the cohesive force between shear wall is provided and increases seam crossing shear resistance；After all component installations in pending connection position are in place, Precast floor slab is bolted, and grout sleeve is in the milk.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes Change and improvement all fall within the protetion scope of the claimed invention, the claimed scope of the invention by appended claims and its Equivalent thereof.

Claims (5)

1.装配式空腔剪力墙水平接缝齿槽式干式连接结构，其特征在于：包括上层预制空腔剪力墙片、下层预制空腔剪力墙片、预制楼板、灌浆套筒和预埋螺栓，所述上层预制空腔剪力墙片和下层预制空腔剪力墙片均在普通预制剪力墙中间隔预留竖向空腔，竖向空腔将剪力墙分割为多个墙柱，竖向空腔厚度方向两侧为空腔壁；墙柱配筋有纵筋和箍筋；上层预制空腔剪力墙片空腔下部完全贯通，下层预制空腔剪力墙片空腔贯通至预制楼板下表面高度处；下层预制空腔剪力墙片在预制楼板高度处设有牛腿板，牛腿板外侧与预制楼板下表面平齐，牛腿板沿剪力墙长度方向间隔布置预埋螺栓，预埋螺栓高度与预制楼板上表面平齐，预制楼板与剪力墙连接端预制为L型，预制楼板与剪力墙连接端预留螺栓孔，与牛腿板螺栓连接，上层预制空腔剪力墙片和下层预制空腔剪力墙片通过墙柱中的纵筋与灌浆套筒连接，上层预制空腔剪力墙片下端空腔处预留连接凹槽，下层预制空腔剪力墙片上端对应位置预留凸齿，凸齿与连接凹槽相互咬合。1. The prefabricated cavity shear wall horizontal joint cogging dry connection structure is characterized in that: it comprises an upper prefabricated cavity shear wall sheet, a lower prefabricated cavity shear wall sheet, a prefabricated floor slab, a grouting sleeve and Pre-embedded bolts, the upper prefabricated cavity shear wall sheet and the lower prefabricated cavity shear wall sheet are reserved vertical cavities in the ordinary prefabricated shear wall, and the vertical cavity divides the shear wall into multiple parts. A wall column, the two sides of the vertical cavity thickness direction are cavity walls; the wall column is equipped with longitudinal bars and stirrups; the lower part of the cavity of the upper prefabricated cavity shear wall is completely penetrated, and the lower prefabricated cavity shear wall The cavity is connected to the height of the lower surface of the prefabricated floor; the lower prefabricated cavity shear wall is provided with a corbel plate at the height of the prefabricated floor, the outer side of the corbel plate is flush with the lower surface of the prefabricated floor, and the corbel plate is along the length of the shear wall The embedded bolts are arranged at intervals in the direction, and the height of the embedded bolts is flush with the surface of the prefabricated floor slab. The connection end of the prefabricated floor slab and the shear wall is prefabricated into an L shape. The connection end of the prefabricated floor slab and the shear wall is reserved for bolt holes. Connection, the prefabricated cavity shear wall piece on the upper layer and the prefabricated cavity shear wall piece on the lower layer are connected with the grouting sleeve through the longitudinal bars in the wall column, and the connection groove is reserved at the lower end cavity of the prefabricated cavity shear wall piece on the upper layer. Convex teeth are reserved at the corresponding positions of the upper end of the lower prefabricated cavity shear wall sheet, and the convex teeth and the connecting grooves are mutually engaged. 2.根据权利要求1所述的装配式空腔剪力墙水平接缝齿槽式干式连接结构，其特征在于：上层预制空腔剪力墙片空腔下端设有连接凹槽一时，下层预制空腔剪力墙片上端对应位置设有凸齿，凸齿与连接凹槽一相互咬合，凸齿贯通剪力墙厚度方向。2. The prefabricated cavity shear wall horizontal joint cogging dry connection structure according to claim 1 is characterized in that: when the lower end of the upper prefabricated cavity shear wall sheet cavity is provided with a connecting groove, the lower The corresponding position of the upper end of the prefabricated cavity shear wall sheet is provided with protruding teeth, the protruding teeth and the connecting groove are engaged with each other, and the protruding teeth penetrate through the thickness direction of the shear wall. 3.根据权利要求1所述的装配式空腔剪力墙水平接缝齿槽式干式连接结构，其特征在于：上层预制空腔剪力墙片直接以下端的空腔为连接凹槽二时，下层预制空腔剪力墙片上端对应位置设有凸齿二，凸齿二与连接凹槽二相互咬合。3. The prefabricated cavity shear wall horizontal joint cogging dry connection structure according to claim 1 is characterized in that: when the upper prefabricated cavity shear wall sheet is directly at the lower end of the cavity for connecting groove two The upper end of the lower prefabricated cavity shear wall sheet is provided with two protruding teeth at the corresponding position, and the second protruding teeth and the connecting groove two are mutually engaged. 4.根据权利要求1、2或3所述的装配式空腔剪力墙水平接缝齿槽式干式连接结构，其特征在于：所有连接接触面现场施工时均先摊铺薄层水泥砂浆或灌浆料作为粘结料，提供剪力墙之间的粘结力和增大接缝处抗剪能力。4. The prefabricated cavity shear wall horizontal joint cogging dry connection structure according to claim 1, 2 or 3 is characterized in that: all connection contact surfaces are firstly paved with thin-layer cement mortar during on-site construction Or grouting material is used as a binder to provide adhesion between shear walls and increase the shear resistance of the joints. 5.根据权利要求1、2或3所述的装配式空腔剪力墙水平接缝齿槽式干式连接结构，其特征在于：凸齿各侧面有5-20°角度的倾斜。5. The prefabricated cavity shear wall horizontal joint cogging dry connection structure according to claim 1, 2 or 3, characterized in that: each side surface of the protruding teeth is inclined at an angle of 5-20°.
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