CN218466793U - Prefabricated assembled shear force wall - Google Patents

Abstract

The utility model relates to the field of assembly type buildings, and discloses a prefabricated assembly type shear wall, which comprises an upper layer of distribution steel bars, a lower layer of distribution steel bars, a template and a plurality of positioning connecting pieces, wherein the upper layer of distribution steel bars and the lower layer of distribution steel bars are connected through tie bars and/or truss steel bars to form a steel bar cage; the positioning connecting piece comprises a web plate and flange plates vertically connected to two ends of the web plate, the web plate penetrates through the steel reinforcement cage, part of horizontal steel reinforcements of the steel reinforcement cage penetrate through the web plate, the two flange plates are both positioned outside the steel reinforcement cage, and the flange plates are provided with a plurality of threaded holes for mounting fastening bolts; the inner surface of the template is tightly attached to the outer surface of the flange plate, and a plurality of fastening bolts penetrate through the through holes of the template to be connected with the flange plate so as to form a cavity for pouring post-cast concrete; the tensile strength of the web plate is greater than the maximum lateral pressure of the post-cast concrete to the template, and the maximum bending deformation of the flange plate is less than 1mm. Therefore, the connection between the reinforcement cage and the template can be completed in a factory, the construction quality is improved, and the construction process is simplified.

Description

Prefabricated assembled shear force wall

Technical Field

The utility model relates to an assembly type structure technical field, more specifically say, relate to a prefabricated assembled shear force wall.

Background

The existing cast-in-place shear wall structure is complex in construction process and long in construction period, and the problems of steel bar deviation and steel bar binding mistake and omission easily occur when steel bar binding work is carried out on site, so that the binding quality of a steel bar cage is difficult to guarantee. Meanwhile, the steel bars are directly exposed in the external environment, are easily affected by weather factors such as rain, snow and the like, and are easy to slow down the construction progress.

In summary, how to improve the construction quality of the shear wall structure and simplify the construction process of the shear wall structure is a problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a prefabricated assembled shear wall can accomplish the ligature of steel reinforcement cage and the template of fixed steel reinforcement cage and both sides in the mill prefabrication, has improved the construction quality of shear wall structure to the construction process of shear wall structure has been simplified.

In order to achieve the above object, the present invention provides the following technical solutions:

a prefabricated assembly type shear wall comprises upper-layer distributed steel bars, lower-layer distributed steel bars, a template and a plurality of I-shaped positioning connecting pieces, wherein the upper-layer distributed steel bars and the lower-layer distributed steel bars are connected through tie bars and/or truss steel bars to form a steel bar cage;

the positioning connecting piece comprises a web plate and flange plates vertically connected to two ends of the web plate, the web plate penetrates through the steel reinforcement cage, the web plate is provided with horizontal steel reinforcement holes, so that part of horizontal steel reinforcements of the steel reinforcement cage penetrate through the horizontal steel reinforcement holes, the two flange plates are positioned outside the steel reinforcement cage, and the flange plates are provided with a plurality of threaded holes for mounting fastening bolts;

the inner surface of the template is arranged to be tightly attached to the outer surface of the flange plate, and a plurality of fastening bolts penetrate through holes of the template to be connected with the flange plate so as to tie the templates on two sides of the positioning connecting piece and enclose a cavity for pouring post-cast concrete;

the tensile strength of the web plate is greater than the maximum side pressure of the post-cast concrete to the template, and the maximum bending deformation of the flange plate during the post-cast concrete pouring is less than 1mm.

Preferably, the two flange plates have the same shape and size, and the central axis of the web plate is collinear with the central axis of the flange plate;

the threaded holes are uniformly distributed along the circumferential direction of the flange plate.

Preferably, the template comprises a wood template, a stainless steel template, an aluminum alloy template, a ribbed plastic template, a PVC skinning foaming plate and a fiber reinforced composite plate, and the inner diameter of the through hole of the template is larger than or equal to the outer diameter of the fastening bolt.

Preferably, when the horizontal width of the cavity is greater than or equal to 200mm, the post-cast concrete is ordinary concrete;

and when the horizontal width of the cavity is less than 200mm, the post-cast concrete is self-compacting concrete or fine aggregate concrete.

Preferably, the template is provided with a pipeline opening and/or a door/window opening for placing an opening mold.

Preferably, the post-cast concrete further comprises a heat-insulating layer, wherein the heat-insulating layer is arranged between the template and the upper-layer distributed steel bars, and gaps exist between the heat-insulating layer and the template and between the heat-insulating layer and the upper-layer distributed steel bars, so that the upper-layer distributed steel bars and the heat-insulating layer can be completely wrapped in the post-cast concrete.

Preferably, the web of the positioning connecting piece is arranged at the steel bar intersection of the steel bar cage, and the positioning connecting piece is bound or welded with the steel bar cage.

When the prefabricated assembled shear wall provided by the utility model is prefabricated in a factory, the tie bars and/or the truss steel bars are utilized to connect the upper-layer distributed steel bars and the lower-layer distributed steel bars to form a steel bar cage; arranging a plurality of positioning connecting pieces penetrating through the reinforcement cage in the reinforcement cage, enabling flange plates at two ends of each positioning connecting piece to extend out of the reinforcement cage and connecting a web plate of each positioning connecting piece with the reinforcement cage; and arranging a template on the outer end surface of the flange plate, and connecting the template and the positioning connecting piece by using a fastening bolt to complete the connection of the prefabricated wall plate.

After the prefabricated wall board is transported and hoisted to a construction position, post-cast concrete is poured in a cavity between the two side templates; and after the post-cast concrete reaches the preset strength, disassembling the fastening bolts and the templates at two sides, and filling the slurry into the threaded holes on the flange plates.

Therefore, in the prefabricated assembly type shear wall provided by the utility model, the binding of the reinforcement cage is prefabricated in a factory, thereby not only ensuring the binding quality of the reinforcement cage, but also saving the construction process of binding the reinforcement cage on site, and greatly simplifying the construction process of the shear wall structure; and the web plate of the positioning connecting piece is provided with a horizontal reinforcing steel bar hole for the horizontal reinforcing steel bar of the reinforcing cage to pass through, and the reinforcing cage is connected with the positioning connecting piece of the formworks at the two sides of the drawknot, so that the deviation of the reinforcing cage in the transportation and hoisting process is avoided.

Meanwhile, the steel reinforcement cage and the templates on the two sides are tied by the positioning connecting pieces, so that the quality of the prefabricated wall is reduced, the prefabricated wall is convenient to hoist and transport, the on-site formwork supporting process is omitted, and the construction process of the shear wall structure is further simplified.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a first embodiment of a prefabricated shear wall provided by the present invention;

fig. 2 is a schematic structural diagram of a second embodiment of the prefabricated shear wall provided by the present invention;

fig. 3 is a schematic structural diagram of a third embodiment of the prefabricated shear wall provided by the present invention;

fig. 4 is a schematic structural diagram of a fourth embodiment of the prefabricated shear wall provided by the present invention;

fig. 5 is a schematic structural view of a fifth specific embodiment of the prefabricated shear wall provided by the present invention;

fig. 6 is a schematic distribution diagram of tie bars and positioning connectors in the prefabricated shear wall provided by the present invention;

FIG. 7 is a schematic view of the positioning connection;

fig. 8 is an assembly schematic view of the prefabricated wall body and the L-shaped edge member of the prefabricated assembly type shear wall provided by the present invention;

FIG. 9 is a schematic front view of the reinforcement cage of the L-shaped edge member of FIG. 8;

fig. 10 is an assembly schematic view of the prefabricated wall body of the prefabricated assembly type shear wall provided by the present invention and the L-shaped edge member being connected in another assembly manner;

fig. 11 is an assembly schematic view of a prefabricated wall body and a linear edge member of the prefabricated shear wall provided by the present invention;

fig. 12 is an assembly schematic diagram of the prefabricated wall body and the T-shaped edge of the prefabricated assembled shear wall provided by the present invention;

fig. 13 is a front view of the reinforcement cage of the T-shaped edge member of fig. 12.

In fig. 1-13:

11 is the positioning connection spare, 12 is fastening bolt, 13 is the backing plate, 2 is upper distribution reinforcing bar, 3 is lower floor distribution reinforcing bar, 4 is the drawknot muscle, 5 is the truss reinforcing bar, 6 is the template, 7 is the cavity, 8 is the heat preservation, 9 is rust-resistant gasket, 10 is the edge component, 101 is indulged the muscle, 102 is the stirrup, 103 is the horizontal connection reinforcing bar.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The core of the utility model is to provide a prefabricated assembled shear force wall, can accomplish the ligature of steel reinforcement cage and the template of fixed steel reinforcement cage and both sides in the mill prefabrication, improved the construction quality of shear force wall structure to the construction process of shear force wall structure has been simplified.

Please refer to fig. 1-13.

The utility model provides a prefabricated assembled shear wall, including upper distribution reinforcing bar 2, lower floor's distribution reinforcing bar 3, template 6 and a plurality of positioning connecting piece 11 that are the I shape, upper distribution reinforcing bar 2 and lower floor's distribution reinforcing bar 3 are connected through drawknot muscle 4 and/or truss reinforcing bar 5 to form the steel reinforcement cage;

the positioning connecting piece 11 comprises a web plate and flange plates vertically connected to two ends of the web plate, the web plate penetrates through the steel reinforcement cage, the web plate is arranged outside the horizontal steel reinforcement cage, so that part of horizontal steel reinforcements of the steel reinforcement cage penetrate through the horizontal steel reinforcement holes, the two flange plates are arranged outside the steel reinforcement cage, and the flange plates are provided with a plurality of threaded holes for installing the fastening bolts 12;

the inner surface of the template 6 is tightly attached to the outer surface of the flange plate, and a plurality of fastening bolts 12 penetrate through holes of the template 6 to be connected with the flange plate, so that the templates 6 on two sides of the positioning connecting piece 11 are pulled and tied to form a cavity 7 for pouring post-cast concrete;

the tensile strength of the web plate is greater than the maximum lateral pressure of the post-cast concrete to the template 6, and the maximum bending deformation of the flange plate during the post-cast concrete pouring is less than 1mm.

Referring to fig. 7, the positioning connection member 11 includes a web and flange plates perpendicular to two sides of the web, so that the positioning connection member 11 is i-shaped; the flange plate is provided with a plurality of threaded holes for mounting the fastening bolts 12, so that the flange plate and the fastening bolts 12 are matched to press the template 6 between the flange plate and the bolt heads of the fastening bolts 12.

When the cast-in-place concrete is cast in place, the impact force of the post-cast concrete on the template 6 can be transmitted to the fastening bolts 12 from the template 6 and transmitted to the web plate through the flange plates in threaded connection with the fastening bolts 12, in the process, the flange plates bear great bending moment and shearing force, and the web plate bears great tensile force.

Therefore, the flange plate needs to have enough bending resistance bearing capacity, shearing resistance bearing capacity and bending rigidity, and the bending deformation of the flange plate is smaller than 1mm under the impact force of the post-cast concrete; the tensile strength of the web should be greater than the maximum lateral pressure of the post-cast concrete to the form 6.

The flange plate is limited by the thickness of the flange plate, the length of the threaded hole in the flange plate is short, and in order to ensure the connection strength and the force transmission relationship between the flange plate and the fastening bolt 12, 2-4 threaded holes are usually formed in the flange plate.

The geometrical shapes of the flange plate and the web plate are not limited, the flange plate can be set to be in the shapes of a circle, a rectangle, a triangle and the like, and the web plate can be set to be a rectangular plate, so that the positioning connecting piece 11 can be machined and manufactured by cutting I-shaped steel, the machining mode is convenient to produce, low in cost and reliable in performance, and the web plate can be set to be in rod-shaped structures such as a prism, a cylinder, a circular truncated cone and the like; the sizes of the flange plates on the two sides can be the same or different.

In order to make the stresses in all directions of the flange plates and the web plates relatively uniform and facilitate the production of the positioning connecting piece 11, preferably, the two flange plates can be set to be the same in shape and size, and the central axis of the web plate is collinear with the central axis of the flange plates; the threaded holes are evenly distributed along the circumferential direction of the flange plate.

Considering that individual parts of the positioning connecting piece 11 are directly exposed outside the post-cast concrete, in order to reduce corrosion and prolong the service life of the positioning connecting piece, the positioning connecting piece 11 is mostly made of high-strength corrosion-resistant materials such as stainless steel, titanium alloy, high-strength plastic, hastelloy and the like.

Certainly, also can set up locating connection spare 11 as ordinary steel to set up rust-resistant gasket 9 at the outer terminal surface of locating connection spare 11's flange board, rust-resistant gasket 9's thickness is mostly 5-40mm, by inorganic non-metallic material preparation such as cement mortar, fibre composite, have good corrosion resistance.

The web of positioning connection piece 11 link up the width direction setting of steel reinforcement cage, and stretch out the outer flange plate of steel reinforcement cage and 6 internal surface butts of template, for the concrete protection layer thickness of guaranteeing upper and lower floor's distribution reinforcement, should the length that the steel reinforcement cage was stretched out to the rational design flange plate.

When the length of the positioning connecting piece 11 is insufficient, the thickness of the concrete protective layer of the steel reinforcement cage can be increased by increasing the thickness of the rust-proof gasket 9.

The positioning connecting piece 11 can be formed by cutting and processing I-steel, can also be formed by welding a web plate and flange plates at two ends, and can also be integrally produced in batch by casting, turning and other modes, wherein the thickness of the flange plate is set to be 3-20mm more. The specific production method of the positioning connector 11 is determined according to the material and shape of the positioning connector 11, and is not described herein again.

The fastening bolts 12 are usually hexagon bolts, and are used for crimping the formwork 6 to the outer end face of the flange plate of the positioning connecting piece 11, and blocking the through holes of the formwork 6 so as to prevent the post-cast concrete from overflowing from the through holes of the formwork 6.

When the size of the bolt head of the fastening bolt 12 is smaller than the size of the through hole of the template 6, a backing plate 13 may be provided between the fastening bolt 12 and the template 6, the size of the backing plate 13 is larger than the size of the through hole of the template 6, and the backing plate 13 is provided with the through hole for installing the fastening bolt 12.

The backing plate 13 is generally made of any material with certain bending strength such as steel, plastic and alloy, and the backing plate 13 can be set to be any geometric shape such as round, rectangular and the like; in order to save materials, the through hole of the backing plate 13 is mostly arranged in the center of the backing plate 13.

The specific type, material, shape and size of the positioning connecting piece 11, the fastening bolt 12 and the backing plate 13 are determined according to the design strength requirement of actual construction, and are not described again.

The upper-layer distributed steel bars 2 and the lower-layer distributed steel bars 3 are connected through tie bars 4 and/or truss steel bars 5 to form a steel bar framework of the combined assembly type shear wall; upper strata distribution reinforcing bar 2 and lower floor's distribution reinforcing bar 3 all can set up to the reinforcing bar net of constituteing by many horizontal reinforcing bars and many vertical reinforcing bars, as shown in fig. 6, also can set up to fashioned reinforcing bar net piece, and the concrete material, the kind and the size of upper and lower distribution reinforcing bar are confirmed according to the design strength requirement of actual construction, no longer describe herein.

Preferably, referring to fig. 1, the upper distributed steel bars 2 and the lower distributed steel bars 3 are bound or welded with tie bars 4, and the tie bars 4 are uniformly arranged in a plum blossom shape at the steel bar intersection of the steel bar cage. The reinforcing bar meeting point is the tie point of horizontal reinforcing bar and vertical reinforcing bar in the steel reinforcement cage, sets up drawknot muscle 4 in here, is favorable to strengthening the stability of being connected of drawknot muscle 4 and upper and lower floor's distribution reinforcing bar.

The truss reinforcement 5 may be used to partially or completely replace the tie bars 4, as shown in fig. 2 and 5, the truss reinforcement 5 includes at least one upper layer reinforcement and at least two lower layer reinforcements; the upper layer steel bars and the lower layer steel bars are welded and connected one by one through steel wires, steel bars or steel strands to form an N-shaped structure or an M-shaped structure; the upper reinforcing bar is bound with the upper distributed reinforcing bar 2 or welded connection, and the lower reinforcing bar is bound with the lower distributed reinforcing bar 3 or welded connection.

In order to effectively tie the upper-layer distributed steel bars 2 and the lower-layer distributed steel bars 3, preferably, the tie bars 4 and/or the truss steel bars 5 can be uniformly arranged along the length direction of the prefabricated shear wall. Preferably, the distance between two adjacent tie bars 4 can be set to be 200-800mm.

In order to prevent the reinforcement cage from shifting in the transportation and hoisting processes, the web plate of the positioning connecting piece 11 is connected with the reinforcement cage. Preferably, can set up the web of positioning connection piece 11 and be located steel reinforcement intersection point department of steel reinforcement cage, positioning connection piece 11 and steel reinforcement cage ligature or welded connection, positioning connection piece 11's web can be connected with the horizontal reinforcement and the vertical reinforcement of steel reinforcement cage simultaneously, compare in only being connected with horizontal reinforcement or only being connected with vertical reinforcement, connection stability and reliability are stronger.

The inner surface of the template 6 is closely attached to the outer surface of the upper flange plate of the positioning connecting piece 11 and used for enclosing a cavity 7 for pouring post-cast concrete.

Preferably, the template 6 comprises a wooden template, a stainless steel template, a plastic template, an aluminum alloy template, a PVC skinning foaming plate, a ribbed plastic template and a fiber reinforced composite plate, and the inner diameter of the through hole of the template 6 is greater than or equal to the outer diameter of the fastening bolt 12. To facilitate the removal of the fastening bolts 12, the through-holes of the template 6 are usually provided slightly larger than the outer diameter of the fastening bolts 12.

The concrete type of the template 6 is determined according to actual construction needs by referring to the prior art; the thickness of the template 6 is determined according to the material of the template 6, the thickness of the template 6 with relatively high strength is lower, and the thickness of the template 6 with relatively low strength is higher.

Besides the through holes for installing the fastening bolts 12, pipeline openings or door and window openings for placing opening molds are reserved on the template 6 for the requirement of laying pipelines or opening doors and windows in the prefabricated assembly type shear wall.

Taking laying a pipeline as an example, pipeline pipelines need to be reserved in a reinforcement cage according to a design position, a plurality of positioning connectors 11 are inserted into a non-pipeline area of the reinforcement cage, a template 6 provided with an opening mold is arranged outside a flange plate of each positioning connector 11, the opening mold and the pipeline pipelines are aligned and connected, and a fastening bolt 12 is used for connecting the template 6 and the flange plate of each positioning connector 11 to complete the assembly of the prefabricated wall body; after the prefabricated wall body is transported and hoisted in place, post-cast concrete is poured in the cavity 7, and the hole die and the die plate 6 are detached after the post-cast concrete reaches the preset strength for subsequent repeated use.

The type and thickness of post-cast concrete affect the strength of the prefabricated shear wall, and in consideration of the design strength and construction cost of the wall, ordinary concrete is usually cast when the horizontal width of the cavity 7 is greater than or equal to 200mm, and self-compacting concrete or fine aggregate concrete is cast when the horizontal width of the cavity 7 is less than 200 mm.

When prefabricating in a factory, connecting the upper-layer distributed steel bars 2 and the lower-layer distributed steel bars 3 by using tie bars 4 and/or truss steel bars 5 to form a steel bar cage; arranging a plurality of positioning connecting pieces 11 penetrating through the reinforcement cage in the reinforcement cage, enabling flange plates at two ends of each positioning connecting piece 11 to extend out of the reinforcement cage and connecting a web plate of each positioning connecting piece 11 with the reinforcement cage; and arranging a template 6 on the outer end surface of the flange plate, and connecting the template 6 and the flange plate of the positioning connecting piece 11 by using a fastening bolt 12 to complete the connection of the prefabricated wall panel.

After the prefabricated wallboard is transported and hoisted to a construction position, post-cast concrete is poured in the cavity 7 between the templates 6 at the two sides; and after the post-cast concrete reaches the preset strength, disassembling the fastening bolts 12 and the templates 6 at two sides, and filling the slurry into the threaded holes on the flange plates.

It should be noted that, referring to fig. 8, 10-12, the edge member 10 includes various types such as a straight edge member, an L-shaped edge member, a T-shaped edge member, etc., and the reinforcement cage of the edge member 10 can be formed by connecting longitudinal bars 101, stirrups 102 (and tie bars 4) by binding, mechanical connection, grouting, welding, etc. The manner of attachment of the edge member 10 to the prefabricated wall is influenced by the type of edge member 10 and the manner of lashing of the reinforcement cages of the edge member 10.

For example, when the reinforcement cages of the edge members 10 are connected in a binding manner, the reinforcement cages of the edge members 10, the formworks 6 of the edge members 10 and the prefabricated wall body can be arranged to be an integral structure, and the edge members 10 and the prefabricated wall body are prefabricated, formed, transported and hoisted together, as shown in fig. 10-12;

when the edge member 10 is a non-linear edge member or the reinforcement cage of the edge member 10 is in non-binding connection, the reinforcement cage of the edge member 10 can be independently prefabricated and molded in a factory or manufactured on site because the edge member 10 cannot be prefabricated and transported together with a prefabricated wall body at the time; after the fabrication of the reinforcement cage of the edge member 10 and the hoisting of the prefabricated wall are completed, a plurality of horizontal connecting reinforcements 103 are uniformly arranged between the two, as shown in fig. 8.

Preferably, after the fabrication of the steel reinforcement cage of the edge member 10 and the hoisting of the prefabricated wall are completed, a gap exists between the steel reinforcement cage of the edge member 10 and the connecting end of the prefabricated wall, so that the connecting end of the prefabricated wall collides with the steel reinforcement cage of the edge member 10 during hoisting, the fine adjustment of the position of the prefabricated wall is facilitated, and the hoisting fault tolerance rate is improved.

Similarly, when the prefabricated wall body is two-layer or even multilayer, can set up connection shaped steel or steel sheet in the cavity 7 of adjacent upper and lower two-layer prefabricated wall body, the surface of connecting shaped steel and the surface of steel sheet all are equipped with a plurality of peg to strengthen the anti-shear bearing capacity of joint interface, simplify the work progress.

In order to ensure the pouring quality of the post-cast concrete, when the number of layers of the prefabricated wall body is large, the cavity 7 of the prefabricated wall body needs to be poured layer by layer. Preferably, high-strength ductile concrete with good fluidity can be poured in the prefabricated wall body at the bottommost layer so as to enhance the overall compression resistance, bending resistance and shear resistance bearing capacity.

In the embodiment, the binding of the reinforcement cage is prefabricated in a factory, so that the binding quality of the reinforcement cage is ensured, the construction process of binding the reinforcement cage on site is saved, and the construction process of the shear wall structure is greatly simplified; and the web plate of the positioning connecting piece 11 is provided with a horizontal reinforcing steel bar hole through which the horizontal reinforcing steel bar of the reinforcing steel bar cage passes, and the reinforcing steel bar cage is connected with the positioning connecting piece 11 of the formworks 6 at the two sides of the drawknot, so that the deviation of the reinforcing steel bar cage in the transportation and hoisting process is avoided.

Meanwhile, the steel reinforcement cage and the templates 6 on the two sides are tied by the positioning connecting piece 11, so that the quality of the prefabricated wall body is favorably reduced, the prefabricated wall body is convenient to hoist and transport, the on-site formwork erecting process is omitted, and the construction process of the shear wall structure is further simplified.

On the basis of above-mentioned embodiment, prefabricated assembled shear force wall still includes heat preservation 8, and heat preservation 8 sets up between 6 and upper distribution reinforcing bar 2 of template, all has the clearance between 8 and 6, the upper distribution reinforcing bar 2 of heat preservation, so that upper distribution reinforcing bar 2 and heat preservation 8 all can wrap up in post-cast concrete completely.

Concrete kind and the thickness of heat preservation 8 are confirmed according to the reference prior art of the building heat preservation regulation in each district, and the distance of heat preservation 8 to the internal surface of template 6, the distance of heat preservation 8 to the surface of upper distribution reinforcing bar 2 then confirm according to the steel reinforcement cage concrete protection layer design thickness etc. of actual construction, and no longer give unnecessary detail here.

In this embodiment, there is the clearance between heat preservation 8 and template 6, the upper strata distribution reinforcing bar 2, is favorable to all wrapping up upper strata distribution reinforcing bar 2 and heat preservation 8 in post-cast concrete, has strengthened upper strata distribution reinforcing bar 2 and post-cast concrete's atress in coordination on the one hand, and on the other hand heat preservation 8 is provided with post-cast concrete layer outward, and post-cast concrete layer can play anticorrosive fire prevention function to heat preservation 8.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

It is right above the utility model provides a prefabricated assembled shear force wall has carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above description of the embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (7)

1. A prefabricated assembly type shear wall is characterized by comprising upper-layer distributed steel bars, lower-layer distributed steel bars, a template and a plurality of I-shaped positioning connecting pieces, wherein the upper-layer distributed steel bars and the lower-layer distributed steel bars are connected through tie bars and/or truss steel bars to form a steel bar cage;

the positioning connecting piece comprises a web plate and flange plates vertically connected to two ends of the web plate, the web plate penetrates through the steel reinforcement cage, the web plate is provided with horizontal steel reinforcement holes, so that part of horizontal steel reinforcements of the steel reinforcement cage penetrate through the horizontal steel reinforcement holes, the two flange plates are positioned outside the steel reinforcement cage, and the flange plates are provided with a plurality of threaded holes for mounting fastening bolts;

the inner surface of the template is arranged to be tightly attached to the outer surface of the flange plate, and a plurality of fastening bolts penetrate through holes of the template to be connected with the flange plate so as to tie the templates on two sides of the positioning connecting piece and enclose a cavity for pouring post-cast concrete;

the tensile strength of the web plate is greater than the maximum side pressure of the post-cast concrete to the template, and the maximum bending deformation of the flange plate during the post-cast concrete pouring is less than 1mm.

2. The prefabricated shear wall of claim 1, wherein the two flange plates are identical in shape and size, and the central axis of the web is collinear with the central axis of the flange plates;

the threaded holes are uniformly distributed along the circumferential direction of the flange plate.

3. The prefabricated shear wall of claim 1, wherein the form panels comprise wood form panels, stainless steel form panels, aluminum alloy form panels, PVC skinning foam boards, ribbed plastic form panels, and fiber reinforced composite boards, and wherein the inside diameter of the through holes of the form panels is greater than or equal to the outside diameter of the fastening bolts.

4. The prefabricated shear wall of any one of claims 1 to 3,

when the horizontal width of the cavity is larger than or equal to 200mm, the post-cast concrete is ordinary concrete;

and when the horizontal width of the cavity is less than 200mm, the post-cast concrete is self-compacting concrete or fine aggregate concrete.

5. The prefabricated shear wall of any one of claims 1 to 3, wherein the formwork is provided with pipe openings and/or door and window openings for placing opening molds.

6. The prefabricated shear wall of any one of claims 1 to 3, further comprising an insulating layer, wherein the insulating layer is arranged between the formwork and the upper distribution steel bars, and gaps are formed between the insulating layer and the formwork and between the insulating layer and the upper distribution steel bars, so that the upper distribution steel bars and the insulating layer can be completely wrapped in the post-cast concrete.

7. The prefabricated shear wall of any one of claims 1 to 3, wherein the web of the positioning connector is disposed at a reinforcement intersection of the reinforcement cage, and the positioning connector is bound or welded to the reinforcement cage.

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