CN115095053A - Anti-seismic superposed wall and construction method thereof - Google Patents

Abstract

The invention relates to the field of fabricated buildings and discloses an anti-seismic superposed wall and a construction method thereof, wherein the anti-seismic superposed wall comprises upper-layer distributed reinforcing steel bars, lower-layer distributed reinforcing steel bars, a precast concrete layer, a template and a plurality of positioning connecting pieces, wherein each positioning connecting piece comprises a web member and upper and lower flange plates vertically connected to two ends of the web member, the upper flange plate is provided with a through hole, the web member is provided with a threaded hole which is coaxial with the through hole and is used for installing a fastening bolt, and the length of the threaded hole is smaller than that of the web member; the upper-layer distributed steel bars and the lower-layer distributed steel bars are connected through tie bars, and lower-end hooks of the lower-layer distributed steel bars, the lower flange plates and the tie bars are all embedded in the precast concrete layer; the web members penetrate through the reinforcement cage to enable the upper flange plates to extend out of the reinforcement cage, the inner surface of the template is tightly attached to the outer surface of the upper flange plates, and the fastening bolts penetrate through the through holes of the template to be connected with the upper flange plates so as to enclose a cavity for pouring post-cast concrete. Therefore, the production process flow is greatly simplified, the construction is convenient and fast, and the construction period is obviously shortened.

Description

A kind of anti-seismic composite wall and its construction method

technical field

The invention relates to the technical field of prefabricated buildings, and more particularly, to an anti-seismic composite wall. In addition, the present invention also relates to a construction method for the above-mentioned anti-seismic composite wall.

Background technique

Due to both the green construction characteristics and the good integrity of the traditional cast-in-place shear wall, the double-sided laminated wall has become a prefabricated building with wide application prospects.

In the prior art, the construction process of the double-sided superimposed shear wall includes the manufacture of the first skin wall and the manufacture of the second skin wall. The manufacturing process of the first skin wall is as follows: cleaning the side mold and the mold table - forming the mold - brushing Release agent-arrangement and binding of steel bars-installation of embedded parts-concrete distribution-concrete vibrating-concrete curing-removal; the production process of the second skin wall is as follows: formwork and brushing release agent-concrete distribution and paving- The first skin wall is reversed and pressed into the superposition - concrete vibrating and curing - demoulding and storage. Before the first skin wall and the second skin wall are superimposed, the first skin wall needs to be cured and demolded and then superimposed with the second skin wall, the manufacturing process is complicated, and the production cycle is long.

To sum up, how to provide a prefabricated building that is convenient for production is an urgent problem to be solved by those skilled in the art at present.

SUMMARY OF THE INVENTION

In view of this, the purpose of the present invention is to provide an anti-seismic composite wall, which utilizes positioning connectors and fastening bolts to tie the prefabricated concrete layer, the reinforcement cage and the formwork, the production process is greatly simplified, the construction is convenient, and the construction period is significantly shortened. .

In addition, the present invention also provides a construction method for the above-mentioned anti-seismic composite wall.

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

An anti-seismic composite wall includes upper distribution steel bars, lower distribution steel bars, prefabricated concrete layers, formwork, and several I-shaped positioning connectors, wherein the positioning connectors include web bars and two vertically connected to the web bars. The upper flange plate is provided with a through hole, the web rod is provided with a threaded hole for installing a fastening bolt, and the threaded hole is coaxially arranged with the through hole of the upper flange plate, And the length of the threaded hole is less than the length of the web;

The upper distribution steel bar and the lower distribution steel bar are connected by tie bars to form a reinforcement cage, and the lower layer distribution steel bars, the lower flange plate and the lower end hooks of the tie bars are all pre-buried in the precast concrete. within the layer;

The web rod passes through the reinforcement cage, so that the upper flange plate protrudes out of the reinforcement cage, the inner surface of the template is closely fitted with the outer surface of the upper flange plate, and the tight The fixing bolts pass through the through holes of the formwork and are connected with the web rods, so as to use the formwork and the precast concrete layer to form a cavity for pouring concrete after pouring.

Preferably, the shape and size of the upper flange plate are the same as those of the lower flange plate.

Preferably, a backing plate is provided between the fastening bolt and the template, the size of the backing plate is larger than the size of the through hole of the template, and the backing plate is provided with a spacer for installing the fastening bolt. through hole.

Preferably, the positioning connector is provided with a rust-proof gasket for preventing corrosion of the positioning connector, and the thickness of the rust-proof gasket is 5-40 mm.

Preferably, the web rod is arranged at the intersection of the reinforcement bars of the reinforcement cage, and the web rod is bound or welded to the reinforcement cage.

Preferably, the formwork includes wood formwork, steel formwork, plastic formwork, aluminum alloy formwork, PVC skinned foam board and fiber-reinforced composite board.

Preferably, it also includes a thermal insulation layer, the thermal insulation layer is arranged between the formwork and the upper distribution steel bars, and there exists between the thermal insulation layer and the inner surface of the formwork and the outer surface of the upper distribution steel bars gap.

A construction method for the seismic composite wall described in any one of the above, comprising:

Use tie bars to connect the upper distribution steel bar and the lower distribution steel bar to form a reinforcement cage;

A number of positioning connectors are arranged in the reinforcement cage, so that the upper and lower flange plates of the positioning connectors extend out of the reinforcement cage;

pouring a precast concrete layer, pre-embedding the lower hooks of the tie bars, the lower distribution steel bars and the lower flange plate in the precast concrete layer, and the thickness of the precast concrete layer is greater than or equal to 50mm;

A formwork is placed outside the upper flange plate, and the formwork and the upper flange plate are connected by fastening bolts to complete the assembly of the prefabricated wall;

transporting and hoisting the prefabricated wall to the construction position, connecting the prefabricated wall and the edge member, and pouring concrete after pouring;

After the post-cast concrete reaches the preset strength, the fastening bolts and the formwork are removed, and the positioning connector is filled with grout.

When the anti-seismic composite wall provided by the present invention is produced in a factory, the upper distribution steel bar and the lower distribution steel bar are firstly connected by tie bars to form a reinforcement cage; Make the flange plates at both ends of the positioning connector protrude out of the reinforcement cage; then, pour the precast concrete layer, and pre-embed the lower positioning steel bar, the lower flange plate of the positioning connector and the lower end hook of the tie bar in the precast concrete layer. Finally, a template is set on the outer surface of the upper flange plate, and the fastening bolts are used to pass through the through holes of the template to connect with the positioning connector to complete the connection of the prefabricated wall.

After the prefabricated wall is transported and hoisted to the construction site, the post-cast concrete is poured in the cavity between the precast concrete layer and the formwork; after the post-cast concrete reaches the preset strength, the fastening bolts and formwork are removed, and the positioning connections are made. The threaded holes of the parts are filled with grout.

Compared with the double-sided composite shear wall, the seismic composite wall provided by the present invention is prefabricated in the factory to complete the assembly of the precast concrete layer, the reinforcement cage and the formwork, and only needs to be poured at the construction site after the post-cast concrete reaches a certain strength. Removable fastening bolts and formwork are convenient for construction, which greatly simplifies the construction process of prefabricated buildings and significantly shortens the construction period.

At the same time, the setting of cavity and formwork is beneficial to reduce the quality of the prefabricated wall. Compared with the traditional double-sided composite wall shear wall, it effectively reduces the difficulty of transportation and hoisting of the prefabricated wall and saves the transportation and hoisting costs. .

In addition, in the traditional double-sided superimposed shear wall, since the vertical steel bars have been wrapped in the prefabricated wall panels, the longitudinal steel bars cannot be directly contacted and connected when the adjacent upper and lower walls are connected, and the thickness of the formwork is usually less than 30mm. When the upper and lower prefabricated walls are connected, the vertical steel bars in the steel cage can be connected by lap joints, which realizes the direct contact connection equivalent to the cast-in-place structure, and the force transmission effect of the steel bars is better.

In addition, the present invention also provides a construction method for the above-mentioned anti-seismic composite wall.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to the provided drawings without creative work.

1 is a schematic structural diagram of a specific embodiment 1 of an anti-seismic composite wall provided by the present invention;

FIG. 2 is a schematic structural diagram of a specific embodiment 2 of an anti-seismic composite wall provided by the present invention;

Fig. 3 is the structural schematic diagram of the specific embodiment 3 of the anti-seismic laminated wall provided by the present invention;

Fig. 4 is the structural schematic diagram of the specific embodiment 4 of the anti-seismic laminated wall provided by the present invention;

Fig. 5 is the structural schematic diagram of the specific embodiment 5 of the anti-seismic laminated wall provided by the present invention;

Fig. 6 is the structural schematic diagram of the specific embodiment 6 of the anti-seismic laminated wall provided by the present invention;

7 is a schematic diagram of the distribution of positioning connectors and tie bars in the seismic composite wall provided by the present invention;

8 is a schematic structural diagram of a positioning connector;

Fig. 9 is the assembly schematic diagram of the prefabricated wall body and the L-shaped edge member of the anti-seismic composite wall provided by the present invention;

Fig. 10 is the structural representation of the reinforcement cage of the L-shaped edge member in Fig. 9;

11 is a schematic diagram of the overall prefabrication of the prefabricated wall body and the in-line edge member of the earthquake-resistant composite wall provided by the present invention.

In Figures 1-11:

11 is the I-shaped base, 12 is the fastening bolt, 13 is the backing plate, 2 is the upper distribution reinforcement, 3 is the lower distribution reinforcement, 4 is the tie reinforcement, 5 is the truss reinforcement, 6 is the precast concrete layer, 7 is empty The cavity, 8 is the insulation layer, 9 is the template, 10 is the edge member, 101 is the longitudinal reinforcement, 102 is the stirrup, and 103 is the horizontal connecting reinforcement.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The core of the invention is to provide an anti-seismic composite wall, which utilizes positioning connectors and fastening bolts to tie the precast concrete layer, the reinforcement cage and the formwork. The production process is greatly simplified, the construction is convenient, and the construction period is significantly shortened.

In addition, the present invention also provides a construction method for the above-mentioned anti-seismic composite wall.

Please refer to Figure 1-Figure 11.

The earthquake-resistant composite wall provided by the present invention includes upper distribution steel bars 2, lower distribution steel bars 3, prefabricated concrete layers 6, formwork 9 and several I-shaped positioning connectors 11. The positioning connectors 11 include web bars and vertical connections. On the upper and lower flange plates at both ends of the web rod, the upper flange plate is provided with through holes, the web rod is provided with threaded holes for installing the fastening bolts 12, and the threaded holes are arranged coaxially with the through holes of the upper flange plate, and The length of the threaded hole is less than the length of the web rod;

The upper distribution steel bar 2 and the lower distribution steel bar 3 are connected by the tie bar 4 to form a steel cage, and the lower layer distribution steel bar 3, the lower flange plate and the lower end hook of the tie bar 4 are all pre-buried in the precast concrete layer 6;

The web rod passes through the reinforcement cage, so that the upper flange plate extends out of the reinforcement cage, the inner surface of the template 9 is closely fitted with the outer surface of the upper flange plate, and the fastening bolt 12 passes through the through hole of the template 9 and the web rod. Connected to enclose a cavity 7 for post-cast concrete with the formwork 9 and the precast concrete layer 6 .

Please refer to FIG. 8 , the positioning connector 11 includes a web bar and upper and lower flange plates perpendicular to both sides of the web bar. The lower flange plate is pre-buried in the precast concrete layer 6 ; and screwed with the fastening bolts 12 to compress the formwork 9 so that it is relatively parallel to the inner surface of the precast concrete layer 6; the through holes in the upper flange plate can be light holes or threaded holes.

Through the cooperation of the threaded holes and the fastening bolts 12, the impact force of the post-cast concrete on the formwork 6 can be directly transmitted to the web rod, while the force on the upper flange plate is relatively small. Therefore, in order to prevent the positioning connector 11 from being pulled off, the tensile strength of the web bar of the positioning connector 11 should be set to be greater than the maximum lateral pressure of the post-cast concrete on the formwork 9 .

The geometrical shapes of the flange plate and the web rod are not limited, the flange plate can be set in the shape of circle, rectangle and triangle, and the web rod can be set in the shape of prism, cylinder and truncated cone; in order to facilitate the manufacture of the positioning connector 11, it is preferred Yes, the shape and size of the upper flange plate can be set to be the same as the shape and size of the lower flange plate.

In order to make the pressure of the post-cast concrete on each position of the flange plate and the web rod relatively uniform, the web rod can be vertically connected to the center of the two flange plates, and the threaded hole is set in the center of the web rod.

Considering that individual parts of the positioning connector 11 are exposed to the post-cast concrete, in order to reduce corrosion and prolong its service life, high-strength corrosion-resistant materials such as stainless steel, titanium alloy, high-strength plastic and Hastelloy are mostly used to make the positioning connector 11 .

When the positioning connecting piece 11 is made of ordinary steel, preferably, outside the positioning connecting piece 11, that is, the outer end face of the upper flange plate and the outer end surface of the lower flange plate of the positioning connecting piece 11, there are provided for preventing Locate the rusted gasket of the connecting piece 11, and the thickness of the anti-rust gasket is 5-40mm.

The specific shape of the anti-rust gasket is not limited, as long as it can cover the outer end faces of the upper and lower flange plates of the positioning connector 11; the anti-rust gasket is mostly made of inorganic non-metallic materials such as cement mortar and fiber composite materials. Good corrosion resistance and low production cost.

The fastening bolts 12 are mostly hexagonal head bolts. Since the template 9 is provided with through holes for installing the fastening bolts 12, in order to prevent the post-cast concrete from overflowing during pouring, the bolt head size of the fastening bolts 12 should be set larger than the through holes of the template 9. size of the hole.

When the size of the fastening bolt 12 is small, the size of the bolt head of the fastening bolt 12 is smaller than the size of the through hole of the template 9. Preferably, a backing plate 13 can be provided between the fastening bolt 12 and the template 9. The size is larger than that of the through holes of the template 9 , and the backing plate 13 is provided with through holes for installing the fastening bolts 12 .

The backing plate 13 is usually made of any material with certain bending strength, such as steel, plastic and alloy, and the backing plate 13 can be set to any geometric shape such as a circle or a rectangle. the center of the plate 13.

The specific types, materials, shapes and sizes of the positioning connector 11 , the fastening bolts 12 and the backing plate 13 are determined according to the design strength requirements of the actual construction, and will not be repeated here.

The upper and lower flange plates can be connected to both ends of the web rod by welding, or they can be provided with threaded holes that are matched with the external threads at both ends of the web rod so as to be threadedly connected to the web rod. The thickness of the flange plate is 3- 20mm; the three can also be set as an integral structure, so that the positioning connector 11 can be integrated and mass-produced by casting or the like.

Please refer to Figure 7, the upper distribution steel bar 2 and the lower distribution steel bar 3 can be set as a steel mesh formed by connecting a plurality of horizontal steel bars and a plurality of vertical steel bars, or can be set as a formed steel mesh sheet; the upper distribution steel bar 2 The distribution bars 3 and the lower layer are parallel to each other, and the two are connected by the tie bars 4 to form a steel cage.

Please refer to Figures 1 to 6, the upper hook of the tie bar 4 is bound or welded to the upper distribution steel bar 2, and the lower end hook of the tie bar 4 is bound or welded to the lower distribution steel bar 3; the tie bar 4 is a plum blossom distribution, as shown in Figure 7.

Of course, part or all of the tie bars 4 can also be replaced with truss bars 5, as shown in Figures 2, 4 and 6. The truss steel bar 5 includes at least one upper-layer steel bar bound or welded with the upper-layer distribution steel bar 2 and at least two lower-layer steel bars bound or welded with the lower-layer distribution steel bar 3; Welded and connected to form an N-shaped structure or an M-shaped structure.

Both the tie bars 4 and the truss bars 5 can be uniformly arranged along the length direction of the prefabricated composite seismic composite wall, and the distance between two adjacent truss bars 5 can be set to 200-800mm.

The specific material, size, quantity, setting position and connection method of the tie bars 4 and the truss bars 5 are determined according to actual production needs, and will not be repeated here.

In order to prevent displacement of the reinforcement cage relative to the precast concrete layer 6 and the formwork 9 during transportation and hoisting, the webs of the I-shaped base 11 are usually connected to the reinforcement cage. Preferably, the web rod of the positioning connector 11 can be set at the intersection of the reinforcement bars of the reinforcement cage, and the web rod is bound or welded to the reinforcement cage.

The intersection point of the steel bar is the connection point of the horizontal steel bar and the vertical steel bar in the steel bar cage, and the web bar is connected to the steel bar intersection point. Horizontal steel bar/vertical steel bar connection, the connection is more stable.

The precast concrete layer 6 is prefabricated in the factory, and the lower distribution steel bars 3, the lower flange plates of the I-shaped base 11 and the lower end hooks of the tie bars 4 are all embedded in the precast concrete layer 6. The thickness of the precast concrete layer 6 And the pre-embedded depth of each component is determined according to the actual construction design requirements, usually the thickness of the precast concrete layer 6 is greater than or equal to 50mm, and the distance from the inner surface of the precast concrete layer 6 to the upper distribution steel bars 2 is greater than or equal to 80mm to ensure earthquake resistance. Structural strength of laminated walls.

In order to facilitate the bonding between the precast concrete layer 6 and the post-cast concrete, the inner surface of the precast concrete layer 6 is usually provided with rough and/or concave-convex grooves, and the concave-convex depth relative to the inner surface of the precast concrete layer 6 is greater than or equal to 3 mm.

The inner surface of the formwork 9 is arranged in close contact with the outer surface of the upper flange plate of the positioning connecting piece 11 , so as to cooperate with the precast concrete layer 6 to form a cavity 7 for pouring concrete after pouring.

Preferably, the formwork 9 includes wood formwork, steel formwork, plastic formwork, aluminum alloy formwork, PVC skinned foam board and fiber reinforced composite board.

The specific type of the formwork 9 is determined according to the actual construction needs with reference to the prior art, and its strength and stiffness should meet the post-cast concrete pouring requirements, and the quality should be less than the quality of the precast concrete layer 6; the thickness of the formwork 9 is determined according to the material of the formwork 9 , the higher the structural strength of the template 9, the smaller the minimum thickness of the template 9.

When it is necessary to lay pipelines or open doors and windows in the prefabricated anti-seismic composite wall, it is necessary to reserve corresponding pipe openings or door and window openings on the prefabricated concrete layer 6 and/or the formwork 9 to place the corresponding opening molds.

The post-cast concrete is poured on-site in the cavity 7 between the precast concrete layer 6 and the formwork 9. The type of post-cast concrete is related to the horizontal width of the cavity 7. When the horizontal width of the cavity 7 is greater than or equal to 200mm, it can be used in the cavity 7. Ordinary concrete is poured in cavity 7;

On the contrary, when the horizontal width of the cavity 7 is less than 200mm, self-compacting concrete or fine stone concrete needs to be poured in the cavity 7 to make up for the wall strength problem caused by the insufficient thickness of the post-cast concrete layer.

During prefabrication in the factory, the upper distribution steel bar 2 and the lower distribution steel bar 3 are firstly connected by the tie bars 4 to form a reinforcement cage; then, a number of positioning connectors 11 running through the thickness direction of the reinforcement cage are arranged to make the positioning connection. The flange plates at both ends of the piece 11 protrude out of the reinforcement cage; then, the precast concrete layer 6 is poured, and the lower positioning steel bar 3, the lower flange plate of the positioning connection piece 11 and the lower end hook of the tie bar 4 are pre-buried in the prefabricated In the concrete layer 6; finally, a template is set on the outer surface of the upper flange plate, and the fastening bolts 12 are connected through the through holes of the template 9 with the positioning connector 11 to complete the connection of the prefabricated wall panels.

After the prefabricated wall is transported and hoisted to the construction position, pour concrete in the cavity 7 between the prefabricated concrete layer 6 and the formwork 9; after the postcast concrete reaches the preset strength, remove the fastening bolts 12 and the formwork 9 , and fill the through holes and threaded holes of the positioning connector 11 with slurry.

In this embodiment, the seismic composite wall is prefabricated in the factory to complete the assembly of the prefabricated concrete layer 6, the reinforcement cage and the formwork 9, and the fastening bolts 12 and 9 can be removed only after the post-cast concrete poured at the construction site reaches a certain strength Compared with the double-sided superimposed shear wall, the formwork 9 is convenient to construct, which greatly simplifies the construction process of the prefabricated building and significantly shortens the construction period.

At the same time, the arrangement of the cavity 7 and the formwork 9 is beneficial to reduce the quality of the prefabricated wall. Compared with the traditional double-sided composite wall shear wall, the difficulty of transportation and hoisting of the prefabricated wall is effectively reduced, and transportation and hoisting are saved. Lifting costs.

In addition, in the traditional double-sided superimposed shear wall, since the vertical steel bars have been wrapped in the prefabricated wall panels, the longitudinal steel bars cannot be directly contacted and connected when the adjacent upper and lower walls are connected, and the thickness of the formwork 9 is usually less than 30mm. , when the upper and lower prefabricated walls are connected, the vertical steel bars in the steel cage can be connected by lap joints, which realizes the direct contact connection equivalent to the cast-in-place structure, and the force transmission effect of the steel bars is better.

On the basis of the above-mentioned embodiment, please refer to FIG. 5 and FIG. 6 , the anti-seismic composite wall also includes thermal insulation 8 , the thermal insulation layer 8 is arranged between the formwork 9 and the upper distribution steel bars 2 , and the thermal insulation layer 8 and the inner surface of the formwork 9 , There are gaps between the outer surfaces of the upper distribution steel bars 2 .

The type and thickness of the thermal insulation layer 8 are determined according to the building thermal insulation regulations in various regions with reference to the prior art. The distance between the thermal insulation layer 8 and the inner surface of the formwork 9 and the distance between the thermal insulation layer 8 and the outer surface of the upper distribution steel bars 2 are all based on actual construction needs. OK, and will not repeat them here.

In this embodiment, a certain gap is reserved between the insulation layer 8, the template 9 and the upper distribution steel bar 2, which is beneficial to wrap the upper distribution steel bar 2 in the post-cast concrete, so that the upper layer distribution steel bar 2 and the post-cast concrete Synergistic stress; also makes the insulation layer 8 have a certain thickness of post-cast concrete protection, which can play the function of anti-corrosion and fire prevention.

In addition to the above-mentioned anti-seismic composite wall, the present invention also provides a construction method including the anti-seismic composite wall disclosed in the above-mentioned embodiments, and the construction method includes:

Step S1, using the tie bar 4 to connect the upper distribution steel bar 2 and the lower layer distribution steel bar 3 to form a reinforcement cage;

In step S2, several positioning connectors 11 are arranged in the reinforcement cage, so that the upper and lower flange plates of the positioning connectors 11 extend out of the reinforcement cage;

Step S3, pouring the precast concrete layer 6, pre-embedding the lower end hooks of the tie bars 4, the lower distribution steel bars 3 and the lower flange plate in the precast concrete layer 6;

Step S4, place the template 9 outside the upper flange plate, and use the fastening bolts 12 to connect the template 9 and the upper flange plate to complete the assembly of the prefabricated wall;

Step S5, transporting and hoisting the prefabricated wall to the construction position, connecting the prefabricated wall and the edge member, and pouring concrete after pouring;

In step S6, after the post-cast concrete reaches the preset strength, the fastening bolts 12 and the template 9 are removed, and the positioning connector 11 is filled with grout.

It needs to be explained in step S5 that the edge member 10 includes many different types such as a straight edge member, an L-shaped edge member, a T-shaped edge member and a cross-shaped edge member. The binding method of the reinforcing steel cage will affect the connection method between the edge member 10 and the prefabricated wall.

When the edge member 10 is an in-line edge member, and the longitudinal bars 101 of the edge member 10 are connected by binding, the reinforcement cage of the edge member 10 can be prefabricated in the factory together with the prefabricated wall, and then transported and hoisted as a whole to the construction site , as shown in Figure 11.

When the edge member 10 is a non-inline edge member, or the longitudinal bars 101 of the edge member 10 are connected by non-binding, the reinforcement cage of the edge member 10 is produced independently from the prefabricated wall, and the two are transported and transported separately after the prefabrication in the factory. Hoist to the construction position, or make the reinforcement cage of the edge member 10 on site; in order to improve the hoisting fault tolerance of the prefabricated wall, a certain gap can be set between the edge member 10 and the prefabricated wall; After the hoisting of the prefabricated wall is completed, several horizontal connecting bars 103 are evenly arranged between the edge member 10 and the prefabricated wall, as shown in FIG. 9 .

Referring to FIG. 10 , the reinforcing cage of the edge member 10 includes longitudinal bars 101 , stirrup bars 102 for resisting shear force, and tie bars 4 .

What needs to be explained in step S6 is that the flange plate of the positioning connector 11 is provided with through holes, and the web rod is provided with threaded holes. Replenish.

The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other.

The seismic composite wall and the construction method thereof provided by the present invention have been described in detail above. The principles and implementations of the present invention are described herein by using specific examples, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can also be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims (8)

1. an earthquake-resistant laminated wall, is characterized in that, comprises upper layer distribution steel bar, lower layer distribution steel bar, prefabricated concrete layer, template and several positioning connectors that are I-shaped, and described positioning connectors include web bars and vertical connections On the upper and lower flange plates at both ends of the web rod, the upper flange plate is provided with through holes, the web rod is provided with threaded holes for installing fastening bolts, and the threaded holes are connected with the upper flange plate. The through holes are coaxially arranged, and the length of the threaded hole is less than the length of the web rod; The upper distribution steel bar and the lower distribution steel bar are connected by tie bars to form a reinforcement cage, and the lower layer distribution steel bars, the lower flange plate and the lower end hooks of the tie bars are all pre-buried in the precast concrete. within the layer; The web rod passes through the reinforcement cage, so that the upper flange plate protrudes out of the reinforcement cage, the inner surface of the template is closely fitted with the outer surface of the upper flange plate, and the tight The fixing bolts pass through the through holes of the formwork and are connected with the web rods, so as to use the formwork and the precast concrete layer to form a cavity for pouring concrete after pouring. 2 . The anti-seismic composite wall according to claim 1 , wherein the shape and size of the upper flange plate are the same as the shape and size of the lower flange plate. 3 . 3. The anti-seismic composite wall according to claim 1, wherein a backing plate is provided between the fastening bolt and the formwork, and the size of the backing plate is larger than the size of the through hole of the formwork, And the backing plate is provided with through holes for installing the fastening bolts. 4 . The anti-seismic laminated wall according to claim 1 , wherein the positioning connector is provided with an anti-rust gasket for preventing corrosion of the positioning connector, and the thickness of the anti-rust gasket is 5. 5 . -40mm. 5. The anti-seismic composite wall according to any one of claims 1-4, wherein the web rod is arranged at the intersection of the reinforcement bars of the reinforcement cage, and the web rod and the reinforcement cage are bound or Solder connection. 6. The anti-seismic composite wall according to any one of claims 1-4, wherein the formwork comprises wood formwork, steel formwork, plastic formwork, aluminum alloy formwork, PVC skinned foam board and fiber reinforced composite plate. 7. The earthquake-resistant laminated wall according to any one of claims 1-4, further comprising a thermal insulation layer, the thermal insulation layer is arranged between the formwork and the upper distribution steel bars, and the thermal insulation layer There are gaps between the inner surface of the template and the outer surface of the upper distribution steel bars. 8. A construction method for the anti-seismic composite wall according to any one of claims 1-7, characterized in that, comprising: Use tie bars to connect the upper distribution steel bar and the lower distribution steel bar to form a reinforcement cage; A number of positioning connectors are arranged in the reinforcement cage, so that the upper and lower flange plates of the positioning connectors extend out of the reinforcement cage; pouring a precast concrete layer, pre-embedding the lower hooks of the tie bars, the lower distribution steel bars and the lower flange plate in the precast concrete layer, and the thickness of the precast concrete layer is greater than or equal to 50mm; A formwork is placed outside the upper flange plate, and the formwork and the upper flange plate are connected by fastening bolts to complete the assembly of the prefabricated wall; transporting and hoisting the prefabricated wall to the construction position, connecting the prefabricated wall and the edge member, and pouring concrete after pouring; After the post-cast concrete reaches the preset strength, the fastening bolts and the formwork are removed, and the positioning connector is filled with grout.

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