CN211080678U

CN211080678U - Cast-in-place connecting section structure of sandwich superposed shear wall and connecting piece thereof

Info

Publication number: CN211080678U
Application number: CN201921820313.6U
Authority: CN
Inventors: 孙海宾; 张猛; 马钊; 马云飞
Original assignee: Sany Construction Technology Co Ltd
Current assignee: Sany Construction Technology Co Ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-07-24
Anticipated expiration: 2029-10-28

Abstract

The utility model relates to an assembly type building field provides cast-in-place linkage segment structure of sandwich superimposed shear wall and connecting piece thereof, and the connecting piece includes first connection fitting, second connection fitting and third connection fitting, and this three connection fitting is mutually independent part to can the built-up connection be whole connecting piece. The first end of the first connecting fitting is used for being embedded in the overhanging outer leaf plate of the sandwich superposed shear wall, and the second end of the first connecting fitting is used for extending out of the inner side of the overhanging outer leaf plate and is positioned in the overhanging functional plate. The second connecting fittings are used for being arranged in the overhanging functional plate of the sandwich superposed shear wall and are used for being connected with the first connecting fittings and the third connecting fittings. The third connecting fitting is used for being connected with the second connecting fitting and is at least partially embedded in the cast-in-place connecting section. The cast-in-place connecting section structure comprises a sandwich superposed shear wall, a connecting section steel reinforcement cage and the connecting piece disclosed above. The connecting piece is used for connecting the overhanging outer leaf plate with concrete injected into the cast-in-place connecting section to form an integral stress structure.

Description

Cast-in-place connecting section structure of sandwich superposed shear wall and connecting piece thereof

Technical Field

The utility model relates to an assembly type structure field especially relates to a cast-in-place linkage segment structure of sandwich superimposed shear wall and connecting piece thereof, and wherein the connecting piece is used for encorbelmenting outer page board or PCF board and the interconnect between the cast-in-place node in installation and normal use.

Background

The assembly type building is a building formed by assembling prefabricated components on a construction site, and the key technical research and application for promoting the assembly type building are one of important measures for promoting the industrial development of the building and the transformation and upgrading of the building industry. At present, an outer wall system is most widely applied to sandwich superposed shear walls, and the sandwich superposed shear wall structure comprises a wall shell, a formed reinforcement cage and a function plate; the wall shell comprises an outer leaf plate and an inner leaf plate, and a cavity is formed between the outer leaf plate and the inner leaf plate; the molded reinforcement cage comprises longitudinal ribs and a plurality of reinforcement meshes, the longitudinal ribs extend along the height direction of the inner leaf plate, and the reinforcement meshes are arranged at intervals along the extending direction of the longitudinal ribs; the functional plate is arranged between the forming reinforcement cage and the outer leaf plate; the inner leaf plate and the outer leaf plate are both concrete plates, and the outer leaf plate is connected with the inner leaf plate through a connecting piece. The connecting piece includes connecting plate and U type connecting rod. One ends of the connecting plates and the connecting rods are embedded in the inner leaf plates, and the other ends of the connecting plates and the connecting rods penetrate through the function plates and are embedded in the outer leaf plates. The connecting plate and the connecting rod are of an integrated structure.

Can learn, need to be connected through the connecting piece between the outer page board of current sandwich superimposed shear wall and the interior page board (bearing interior wall), the connecting piece divide into two kinds: slice connecting piece (bearing connecting piece), needle-like connecting piece (spacing connecting piece, template drawknot spare), wherein spacing connecting piece evenly arranges on the wall casing, is not ftractureing when using in order to ensure the outer page or leaf board of superimposed shear wall, and template drawknot spare is when pouring the concrete, and outer page or leaf board is not by the lateral pressure fracturing of concrete in order to ensure the superimposed shear wall. In the practical project application process, a cast-in-place connecting section is arranged between every two sandwich superposed shear walls, the width of the cast-in-place connecting section is determined according to calculation and construction, the outer leaf plates and the function plates of the sandwich superposed shear walls in the cast-in-place connecting section extend out of the inner leaf plates and the outer sides of the formed reinforcement cages, namely the inner sides of the outer leaf plates and the function plates in the cast-in-place connecting section are not provided with the inner leaf plates and the formed reinforcement cages and are in a cantilever state.

With the continuous improvement of the assembly technology, the steel bars in the cast-in-place connecting section of the sandwich superposed shear wall are often processed into cages in factories and integrally hoisted on site. Under the condition, the connecting piece of the outer leaf plate adopted at the position of the cast-in-place connecting section can only be installed after the reinforcement cage is in place, and the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one of the above technical problems, the present disclosure provides the following.

According to one aspect of the present disclosure, a connector for a cast-in-place connecting section of a sandwich composite shear wall comprises:

The first end of the first connecting fitting is embedded in the overhanging outer page plate, and the second end of the first connecting fitting is used for extending out of the inner side of the overhanging outer page plate and is positioned in the overhanging functional plate;

The first end of the second connecting fitting is used for being connected with the second end of the first connecting fitting; and

A third connection fitting having a first end for connection with a second end of the second connection fitting and for being at least partially embedded within the cast-in-place connection section.

According to at least one embodiment of the present disclosure, the first connection fitting includes a first end plate and a first screw; the first end plate is fixed at one end of the first screw rod; the first end plate forms a first end of the first connection fitting, and the other end of the first screw forms a second end of the first connection fitting.

According to at least one embodiment of the present disclosure, the second connection fitting is a sleeve, and an inner wall of the sleeve is provided with an internal thread; the first end of the sleeve is used for being in threaded connection with the first screw.

According to at least one embodiment of the present disclosure, the third connection fitting includes a second end plate and a second screw; the second end plate is fixed at one end of the second screw rod; the second end plate forms a second end of the third connection fitting and the other end of the second screw forms a first end of the third connection fitting for threaded connection with the second end of the sleeve.

According to another aspect of the present disclosure, a cast-in-place connecting section structure of a sandwich composite shear wall comprises:

The sandwich superposed shear walls are characterized in that a connection part between the sandwich superposed shear walls is provided with an overhanging outer leaf plate and an overhanging functional plate in an overhanging state, and the overhanging functional plate is arranged on the inner side of the overhanging outer leaf plate;

The connecting section reinforcement cage is arranged on the inner side of the overhanging functional plate and is used for being embedded in the cast-in-place connecting section; and

A connector as described above; the first end of the first connecting fitting is embedded in the overhanging outer leaf plate, and the second end of the first connecting fitting extends out of the inner side of the overhanging outer leaf plate and is positioned in the overhanging functional plate; the second connecting fitting is arranged in the overhanging functional plate, and a first end of the second connecting fitting is connected with a second end of the first connecting fitting; the second end of the second connection fitting is connected with the first end of the third connection fitting, and the third connection fitting is at least partially located in the connection section reinforcement cage.

According to at least one embodiment of the present disclosure, the first connection fitting includes a first end plate and a first screw; the second connecting fitting is a sleeve, and an inner wall of the sleeve is provided with an internal thread; the third connecting fitting comprises a second end plate and a second screw;

The first end plate is embedded in the overhanging outer page plate, and the first screw rod extends out of the inner side of the overhanging outer page plate and is positioned in the overhanging functional plate; the sleeve is arranged in the overhanging functional plate, the first end of the sleeve is in threaded connection with the first screw, and the second end of the sleeve is in threaded connection with the second screw; at least part of the second screw is positioned in the connecting section reinforcement cage.

According to at least one embodiment of the present disclosure, the cast-in-place connecting section comprises a plurality of connecting pieces, and the second end plates of some of the connecting pieces are positioned in the connecting section reinforcement cage and are used for being embedded in the cast-in-place connecting section.

According to at least one embodiment of the present disclosure, the steel reinforcement cage further comprises a connecting section inner side formwork, wherein the connecting section inner side formwork is arranged on the inner side of the connecting section steel reinforcement cage; part of the second screw rods of the connecting pieces sequentially penetrate through the connecting section reinforcement cage and the connecting section inner side formwork, sleeves are sleeved outside the second screw rods, and the sleeves extend to the sleeves from the second end plate; the second end plate is located on the inner side of the connecting section inner side template and used for drawing the overhanging outer leaf plate and the connecting section inner side template.

According to at least one embodiment of the present disclosure, the connecting members of the second end plates located in the connecting section reinforcement cage and the connecting members of the second end plates located on the inner side of the connecting section inner side formwork are alternately arranged along the height direction of the wall body.

According to at least one embodiment of this disclosure, the terminal surface of telescopic first end with the lateral surface of the function board of encorbelmenting flushes, the terminal surface of telescopic second end with the medial surface of the function board of encorbelmenting flushes.

According to at least one embodiment of the present disclosure, the overhanging outer leaf plate, the overhanging functional plate and the sandwich superposed shear wall are mutually independent members, the overhanging outer leaf plate and the overhanging functional plate form a PCF plate, the PCF plate is connected between the sandwich superposed shear walls, and the PCF plate is in butt joint with the outer leaf plate and the functional plate of the sandwich superposed shear wall.

The utility model discloses following beneficial effect has: because the three connecting fittings are mutually independent parts, when the sandwich superposed shear wall is prefabricated, the first connecting fitting can be embedded in the overhanging outer leaf plate, and then the second connecting fitting is arranged in the overhanging functional plate and is connected with the embedded first connecting fitting. First connection accessory and second connection accessory this moment can set up along with sandwich superimposed shear wall and target in place, because first connection accessory and second connection accessory do not stretch out the inboard of the function board of encorbelmenting, can not hinder linkage segment steel reinforcement cage's hoist and mount, consequently can not increase the construction degree of difficulty.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

Fig. 1 is a schematic diagram of the overhanging position and the position of a cast-in-place connecting section of the sandwich composite shear wall.

Fig. 2 is a front view of the connecting section reinforcement cage of fig. 1.

Fig. 3 is a schematic diagram of the overall structure of an exemplary connector according to the present disclosure.

Fig. 4 is an exemplary structural schematic diagram of the first connection fitting of fig. 3.

Fig. 5 is an exemplary structural schematic diagram of the second connection fitting of fig. 3.

Fig. 6 is an exemplary structural view of the third connection fitting of fig. 3.

Fig. 7 is a schematic view of a first state of a cast-in-place connecting segment structure of a sandwich composite shear wall according to the present disclosure.

Fig. 8 is a schematic view of a second state of a cast-in-place connecting segment structure of a sandwich composite shear wall according to the present disclosure.

Fig. 9 is a schematic view of a third state of a cast-in-place connecting segment structure of a sandwich composite shear wall according to the present disclosure.

Fig. 10 is a schematic view of a fourth state of a cast-in-place connecting segment structure of a sandwich composite shear wall according to the present disclosure.

Fig. 11 is a schematic diagram of a structure in the form of a PCF board in an exemplary cast-in-place connector segment structure of the present disclosure.

Fig. 12 is an exemplary structural diagram of the PCF board of fig. 11.

Fig. 13 is a schematic view of a first state of the cast-in-place connecting section structure of fig. 11.

Fig. 14 is a schematic view of a second state of the cast-in-place connector segment structure of fig. 11.

Fig. 15 is a third state schematic diagram of the cast-in-place connector segment structure of fig. 11.

Fig. 16 is a fourth state diagram of the cast-in-place connector segment structure of fig. 11.

Detailed Description

The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Sandwich shear walls are widely used as exterior wall systems, which are similar in structure to a sandwich structure, and the innermost side of the sandwich shear wall is an inner leaf plate which is formed by concrete plates and plays a role in bearing; the outermost side is an outer leaf plate which is formed by concrete plates and plays the role of an outer wall surface; the inner side of the outer page plate is provided with a layer of functional plate adhered to the outer page plate, and the functional plate can be a plate layer made of various functional materials such as an insulation plate, a fireproof plate or a waterproof plate according to different functional requirements; the insulation board is widely used. And a forming reinforcement cage which plays a role in connecting and supporting is arranged between the function board and the inner leaf board. The section structure of the sandwich superposed shear wall sequentially comprises an outer leaf plate, a functional plate, a formed reinforcement cage and an inner leaf plate from the outer side to the inner side; wherein the formed reinforcement cage part is provided with a cavity which is generated by the space between the functional plate and the inner leaf plate and is used for casting concrete in situ.

in the actual construction of the sandwich superposed shear wall, one sandwich superposed shear wall and the other sandwich superposed shear wall need to be connected, the two sandwich superposed shear walls can be in a connection form with any included angle between 0 degrees and 180 degrees or in a connection form equal to an included angle of 180 degrees (namely, sequentially connected on the same plane), at the connection position, each sandwich superposed shear wall can be provided with a cast-in-place connection section with a certain width, the width of the cast-in-place connection section is determined according to calculation and construction, referring to the schematic position diagram of the overhanging position of the sandwich superposed shear wall and the cast-in-place connection section shown in fig. 1, the connection form of the included angle of 90 degrees formed between the two sandwich superposed shear walls is taken as an example to illustrate, the cast-in-place connection section 2 is in an L shape, the outer leaf plate 1 and the functional plate 3 of each sandwich superposed shear wall extend to the positions of the two wall plates, but a certain distance is reserved between the stress forming reinforcement cage 4 and the inner leaf 5 and the stress forming position of the cast-in-place reinforcement cage connection section 2, the cast-in-place concrete connection cage 6 is arranged in the horizontal plane of the cast-in-place concrete connection cage connection section, so that the concrete connection cage connection section 2, the concrete connection cage connection structure is also integrally formed in the whole construction of the concrete connection cage 2, and the concrete connection cage connection structure, so as to form.

Each sandwich superposed shear wall can be connected by the existing connecting pieces in the areas outside the cast-in-place connecting sections 2, namely, the outer leaf plates 1 and the inner leaf plates 5 can be connected by connecting plates, U-shaped connecting rods and the like. In the area of the cast-in-place connecting section 2, the inner side of the outer leaf plate 1 and the inner side of the functional plate 3 are not provided with the inner leaf plate 5 and are in an overhanging state, and the outer leaf plate 1 and the functional plate 3 in the area are called as an overhanging outer leaf plate 1 and an overhanging functional plate 3; it will be understood by those skilled in the art that the overhanging outer sheet 1 and the overhanging functional sheet 3 may be integrated with the outer sheet 1 and the functional sheet 3 of the sandwich laminated shear wall, that is, in the above embodiment, they may also be separate members from the outer sheet 1 and the functional sheet 3 of the sandwich laminated shear wall, in which case the separate member formed by the overhanging outer sheet 1 and the overhanging functional sheet 3 is called PCF (pre-crete facade panel), and refers to a non-bearing Precast concrete outer wall panel installed on the main structure for building and decoration. Encorbelmenting outer page or leaf board 1 and encorbelmenting function board 3 and need be connected with the concrete (cast-in-place node) that inboard cast-in-place linkage segment 2 was pour, if adopt current connecting piece, then the connecting piece will stretch out the region in the cast-in-place linkage segment 2 from outer page or leaf board 1, and still need set up linkage segment steel reinforcement cage 6 in this region, and the connecting piece that stretches out will hinder the hoist and mount of linkage segment steel reinforcement cage 6, increases the construction degree of difficulty.

In order to solve at least one of the above technical problems, according to an embodiment of the present disclosure, a connector for a cast-in-place connecting section 2 of a sandwich laminated shear wall is provided, which is used for connecting an overhanging outer leaf plate or a PCF plate with a cast-in-place node during installation and normal use. Referring to the overall structure of the connector shown in fig. 3, the connector includes a first connection fitting 71, a second connection fitting 72, and a third connection fitting 73, which are separate parts and can be combined and connected as an integral connector. The first end of the first connecting fitting 71 is used for being embedded in the overhanging outer leaf plate 1 of the sandwich superposed shear wall, and the second end of the first connecting fitting 71 is used for extending out of the inner side of the overhanging outer leaf plate 1 and being positioned in the overhanging functional plate 3. After the first end of the first connection fitting 71 is embedded in the overhanging outer leaf 1 of the sandwich laminated shear wall, the second end of the first connection fitting 71 extends out from the inner side of the overhanging outer leaf 1 and into the overhanging functional plate 3 so as to be connected with the second connection fitting 72. The second connecting fitting 72 is used for being arranged in the overhanging functional plate 3 of the sandwich laminated shear wall, and a first end of the second connecting fitting 72 is used for being connected with a second end of the first connecting fitting 71; the second end of the second connection fitting 72 is adapted to be connected to a third connection fitting 73. The second connecting fitting 72 functions as an intermediate connector that connects the first connecting fitting 71 and the third connecting fitting 73. The first end of the third connecting fitting 73 is used for being connected with the second end of the second connecting fitting 72, and the third connecting fitting 73 is used for being at least partially embedded in the cast-in-place connecting section 2, and the third connecting fitting 73 is embedded in the cast-in-place connecting section 2 and forms a connection with the cast-in-place connecting section 2, so that the second connecting fitting 72 is connected with the first connecting fitting 71 embedded in the outer leaf plate 1, and the outer leaf plate 1 is connected with the cast concrete of the cast-in-place connecting section 2 through the connecting piece. Since the three connection fittings are independent parts, when the sandwich laminated shear wall is prefabricated, the first connection fitting 71 can be embedded in the overhanging outer leaf plate 1, and then the second connection fitting 72 is arranged in the overhanging functional plate 3 and connected with the embedded first connection fitting 71. The first connecting fittings 71 and the second connecting fittings 72 can be arranged in place along with the sandwich superposed shear wall, and the hoisting of the connecting section reinforcement cage 6 cannot be hindered due to the fact that the first connecting fittings 71 and the second connecting fittings 72 do not extend out of the inner side of the overhanging functional plate 3, and therefore the construction difficulty cannot be increased.

Referring to the exemplary structural schematic of the first connection fitting 71 shown in fig. 4, in an alternative embodiment of the present disclosure, the first connection fitting 71 may include a first end plate 711 and a first screw 712; the first end plate 711 may be a flat plate member fixed to one end of the first screw 712, and the first end plate 711 may be disposed perpendicular to the axial direction of the first screw 712, and functions to increase the contact area between the first connection fitting 71 and the overhanging outer leaf 1 to increase the connection firmness. Also, the first end plate 711 may take other forms to achieve this effect. The first end plate 711 forms a first end of the first connection fitting 71, and the other end of the first screw 712 forms a second end of the first connection fitting 71. In this embodiment, the first end of the second connection fitting 72 may be provided in a form capable of being threadedly coupled with the first screw 712.

Referring to the exemplary construction of the second connection fitting 72 shown in fig. 5, in an alternative embodiment of the present disclosure, the second connection fitting 72 may be a sleeve having an inner wall provided with an internal thread 721. A first end of the sleeve is adapted to be threadedly coupled to the first screw 712 and a second end of the sleeve is adapted to be coupled to the third connection fitting 73, and functions as an intermediate coupling member for coupling the first connection fitting 71 and the third connection fitting 73. In this embodiment, the second end of the sleeve may be connected to the third connection fitting 73 using a connection other than a threaded connection.

Referring to the exemplary schematic structural view of the third connection fitting 73 shown in fig. 6, in an alternative embodiment of the present disclosure, the third connection fitting 73 may include a second end plate 731 and a second screw 732; the second end plate 731 may be a flat plate member fixed to one end of the second screw 732, and the second end plate 731 may be disposed perpendicular to the axial direction of the second screw 732, and functions to increase the contact area of the third connecting fitting 73 with the cast concrete of the cast-in-place connecting section 2 to increase the connection firmness. Similarly, the second end plate 731 may take other forms to achieve this effect. The second end plate 731 forms a second end of the third connection fitting 73, and the other end of the second screw 732 forms a first end of the third connection fitting 73 for threaded connection with a second end of the sleeve.

The connecting piece is set to be in a screw and sleeve connecting mode, when the sandwich superposed shear wall is prefabricated, the connecting piece is convenient to embed and arrange, and during subsequent construction, the connecting piece is convenient to combine and connect, so that the construction efficiency is improved.

The utility model also provides a cast-in-place linkage segment structure of sandwich superimposed shear wall, this cast-in-place linkage segment structure include sandwich superimposed shear wall, linkage segment steel reinforcement cage 6 and as above open connecting piece. The junction between the sandwich superimposed shear wall is equipped with the outer page or leaf board 1 of encorbelmenting and the function board 3 of encorbelmenting that is in the state of encorbelmenting, and the function board 3 of encorbelmenting sets up the inboard at the outer page or leaf board 1 of encorbelmenting. The connecting section reinforcement cage 6 is arranged on the inner side of the overhanging functional plate 3 and is embedded in the cast-in-place connecting section 2. The section structure of the cast-in-place connecting section structure sequentially comprises an overhanging outer leaf plate 1, an overhanging functional plate 3 and a connecting section reinforcement cage 6 from the outer side to the inner side. Concrete is injected into the cast-in-place connecting section 2 in subsequent construction, so that the connecting section steel reinforcement cage 6 is embedded into the concrete to form an integral stress structure. The connecting piece is used for connecting the overhanging outer leaf plate 1 with concrete injected into the cast-in-place connecting section 2 to form an integral stress structure.

Wherein, the first end of the first connecting fitting 71 is embedded in the overhanging outer leaf plate 1, and the second end of the first connecting fitting 71 extends out of the inner side of the overhanging outer leaf plate 1 and is positioned in the overhanging functional plate 3. The second connection fitting 72 is provided in the cantilever function board 3, and a first end of the second connection fitting 72 is connected to a second end of the first connection fitting 71; the second end of the second connection fitting 72 is connected to a first end of a third connection fitting 73, and the third connection fitting 73 is at least partially located within the connector section reinforcement cage 6.

When the cast-in-place connecting section structure is constructed, the first connecting fittings 71 and the second connecting fittings 72 are embedded into the overhanging outer leaf plates 1 and the overhanging functional plates 3 in advance when the sandwich laminated shear wall is prefabricated and are connected together. After the sandwich composite shear wall is arranged in place, the first connecting fittings 71 and the second connecting fittings 72 do not extend out of the inner sides of the overhanging functional plates 3, so that hoisting of the connecting section reinforcement cage 6 is not hindered, the connecting section reinforcement cage 6 can be hoisted in place firstly, and then the third connecting fittings 73 are connected with the second connecting fittings 72, so that the construction difficulty is not increased.

In an alternative embodiment of the present disclosure, the first connection fitting 71 may include a first end plate 711 and a first screw 712; the first end plate 711 is fixed to one end of the first screw 712 and is perpendicular to the axis of the first screw 712. The second connection fitting 72 may be a sleeve, the inner wall of which is provided with an internal thread 721. The third connection fitting 73 may include a second end plate 731 and a second screw 732; the second end plate 731 is fixed to one end of the second screw 732 and perpendicular to the axis of the second screw 732. The first end plate 711 is embedded in the overhanging outer leaf panel 1, and the first screw 712 extends out of the inner side of the overhanging outer leaf panel 1 and is positioned in the overhanging functional plate 3. A sleeve is provided in the cantilever function plate 3, a first end of the sleeve is screwed with the first screw 712, and a second end of the sleeve is screwed with the second screw 732, thereby connecting the first connection fitting 71 and the third connection fitting 73 together. At least a portion of the second threaded rod 732 is located within the connector section reinforcement cage 6. In subsequent construction, the part of the second screw 732 located in the connecting section reinforcement cage 6 is embedded in the cast-in-place connecting section 2 and is connected with the cast-in-place connecting section 2.

In an optional embodiment of the present disclosure, an end surface of the first end of the sleeve is flush with the outer side surface of the cantilever function plate 3, and an end surface of the second end of the sleeve is flush with the inner side surface of the cantilever function plate 3; the axial length of the sleeve is equal to the thickness of the overhanging functional plate 3, so that the whole structure is regular, and the operation flow is easy to simplify.

It will be readily appreciated by those skilled in the art that the connectors disclosed above may be distributed in a plurality throughout the sandwich stacked shear wall, and that the third connection fitting 73 may have different connection modes depending on the function and location. Referring to the third state diagram of the cast-in-place connecting section structure of the sandwich laminated shear wall shown in fig. 9, in an alternative embodiment, at least part of the second screw 732 and the second end plate 731 of the third connecting fitting 73 of a part of the number of connecting pieces are located in the connecting section reinforcement cage 6, and in the subsequent construction, the part of the second screw 732 located in the connecting section reinforcement cage 6 and the second end plate 731 are embedded in the cast-in-place connecting section 2 and connected with the concrete of the cast-in-place connecting section 2. In this embodiment, the third connecting fittings 73 of a part of the connecting members are directly embedded in the concrete wall of the cast-in-place connecting section 2, and the function of the third connecting fittings is equivalent to that of a pulling member for pulling the outer leaf plate 1 and the inner side bearing wall (the concrete wall of the cast-in-place connecting section 2) when the wallboard is in normal use, and the outer leaf plate 1 and the inner side bearing wall are pulled to ensure that the deformation of the outer leaf plate 1 meets the requirements under the action of earthquake, wind load and temperature stress.

Referring to fig. 10, a fourth state diagram of the cast-in-place connecting section structure of the sandwich composite shear wall is shown, in another alternative embodiment, the cast-in-place connecting section structure is further provided with a connecting section inner side formwork 8, and the connecting section inner side formwork 8 is arranged on the inner side of the connecting section reinforcement cage 6. The section structure of the cast-in-place connecting section structure sequentially comprises an overhanging outer leaf plate 1, an overhanging functional plate 3, a connecting section reinforcement cage 6 and a connecting section inner side formwork 8 from the outer side to the inner side. The edges of the two sides of the inner side template 8 of the connecting section are lapped on the inner side of the inner leaf 5 of the sandwich superposed shear wall so as to block the concrete injected into the area. The second screw 732 of a part of the connecting members sequentially passes through the connecting-section reinforcement cage 6 and the connecting-section inner formwork 8, a hollow sleeve 74 is further sleeved outside the second screw 732, for example, a PVC sleeve 74 may be used, the sleeve 74 extends from the second end plate 731 to the sleeve, a corresponding through hole is provided on the inner formwork 8 for the sleeve 74 to pass through, one end of the sleeve 74 abuts against one end of the sleeve, the other end of the sleeve 74 passes through the through hole on the inner formwork 8 and abuts against the second end plate 731, that is, the sleeve 74 covers the whole part of the second screw 732 exposed outside the second connecting fitting, that is, the sleeve. The second end plate 731 is located on the inner side of the connecting section inner side formwork 8, and is used for pulling and connecting the overhanging outer leaf plate 1 and the connecting section inner side formwork 8. After the construction is completed, the third connecting fitting 73 (including the second screw 732 and the second end plate 731) for connecting the overhanging outer leaf plate 1 and the connecting piece of the connecting section inner formwork 8 needs to be removed.

In this embodiment, the third connecting fittings 73 are used for tying the overhanging outer leaf panel 1 and the connecting section inner formworks 8 during construction, so that the overhanging outer leaf panel 1 is prevented from being damaged by lateral pressure of concrete during concrete pouring, and the overhanging outer leaf panel 1 is prevented from cracking during concrete pouring, and the third connecting fittings 73 for this purpose need to be removed when the poured concrete reaches the designed strength.

The above two embodiments of the third connecting fittings 73 can be used simultaneously, i.e., a part number of the third connecting fittings 73 are provided according to one of the embodiments, and another part number of the third connecting fittings 73 are provided according to another embodiment.

In an alternative embodiment of the present disclosure, the third connecting fittings 73 of the second end plate 731 in the connecting section reinforcement cage 6 and the third connecting fittings 73 of the second end plate 731 in the connecting section inner side formwork 8 are alternately arranged along the height direction of the wall body. That is, the above-mentioned two different embodiments of the third connecting fittings 73 are used simultaneously, and the two different embodiments of the third connecting fittings 73 may be arranged along the height direction of the wall body by adopting the principle of alternate arrangement.

The following description describes a construction method of a cast-in-place connecting section structure of a sandwich superposed shear wall provided by the present disclosure, and the construction method includes:

When the prefabricated part sandwich composite shear wall is produced, the first connecting fitting 71 is embedded in the overhanging outer leaf plate 1, and a first state schematic diagram of a sandwich composite shear wall cast-in-place connecting section structure shown in fig. 7 is referred. A hole may be formed in the cantilever function board 3 at a position corresponding to the first connection fitting 71, so that the first screw 712 is inserted into the corresponding hole.

After the sandwich laminated shear wall is manufactured, a second connecting fitting 72 is installed at a position, corresponding to the first connecting fitting 71, on the overhanging functional plate 3, referring to a second state schematic diagram of the cast-in-place connecting section structure of the sandwich laminated shear wall shown in fig. 8. A hole may be formed in the cantilever function board 3 at a position corresponding to the first connection fitting 71, and a sleeve may be inserted into the hole in the cantilever function board 3 and screwed to the first screw 712.

And (3) arranging the sandwich superposed shear wall in place, and then hoisting the connecting section reinforcement cage 6 in place.

Arranging a connecting section inner side template 8 at a corresponding position of the cast-in-place connecting section 2, and arranging a through hole at a position where a third connecting fitting 73 needs to be installed;

Referring to fig. 9 and 10, a third connecting fitting 73 is connected to a position corresponding to the second connecting fitting 72, in a third state and a fourth state of the cast-in-place connecting segment structure of the sandwich laminated shear wall. The second screw 732 is screwed into the corresponding sleeve.

Concrete is poured at least in the area of the cast-in-place connecting section 2 and in the cavity of the sandwich superposed shear wall, so that the overhanging outer leaf plate 1 and the cast-in-place connecting section 2 are connected with the poured concrete through the third connecting fitting 73. The concrete poured into the cavity is connected with the concrete in the cast-in-place connecting section 2.

When the poured concrete reaches the designed strength, the third connecting fittings 73 of the drawknot overhanging outer leaf plate 1 and the connecting section inner side formwork 8 are detached.

the cast-in-place connecting section structure of the sandwich superposed shear wall provided by the disclosure can also adopt the following implementation mode, see the structural schematic diagram of the PCF plate form adopted in the exemplary cast-in-place connecting section structure shown in fig. 11, the overhanging outer leaf plate 1 'and the overhanging functional plate 3' form the PCF plate 11, see the exemplary structural schematic diagram of the PCF plate 11 shown in fig. 12, the PCF plate 11 comprises an outer overhanging outer leaf plate 1 'and an inner overhanging functional plate 3', the PCF plate 11 can be designed into an L-shaped corner shape according to the position of the connected wall body, or can be designed into a straight line shape, the PCF plate 11 is connected between the sandwich superposed shear walls, the overhanging outer leaf plate 1 'is butted with the outer leaf plate 1 of the sandwich superposed shear wall, and the overhanging functional plate 3' is butted with the functional plate 3 of the sandwich superposed shear wall.

The construction method of the cast-in-place connecting section structure in the form of the PCF panel 11 shown in fig. 11 includes:

When the PCF board 11 is prefabricated, the first connection fitting 71 is embedded in the overhanging outer leaf 1', see fig. 13 for a first state of the cast-in-place connection segment structure. A hole may be formed in the cantilever function board 3' at a position corresponding to the first connection fitting 71, so that the first screw 712 is inserted into the corresponding hole.

After the PCF board 11 is manufactured, a second connection fitting 72 is installed on the overhanging functional board 3' at a position corresponding to the first connection fitting 71, see fig. 14 for a second state diagram of the cast-in-place connection segment structure. A hole may be formed in the cantilever plate 3 'at a position corresponding to the first connection fitting 71, and a sleeve may be inserted into the hole in the cantilever plate 3' and screwed to the first screw 712.

The PCF plate 11 is set in place and then the connecting section reinforcement cage 6 is hoisted in place.

Referring to fig. 15 and 16, a third connecting fitting 73 is connected at a position corresponding to the second connecting fitting 72, in a third state view and a fourth state view of the cast-in-place connecting section structure. The second screw 732 is screwed into the corresponding sleeve.

Concrete is poured at least in the area of the cast-in-place connecting section 2 and in the cavity of the sandwich superposed shear wall, so that the overhanging outer leaf plate 1' and the cast-in-place connecting section 2 are connected with the poured concrete through the third connecting fitting 73. The concrete poured into the cavity is connected with the concrete in the cast-in-place connecting section 2.

When the poured concrete reaches the designed strength, the third connecting fittings 73 of the drawknot overhanging outer leaf plate 1' and the connecting section inner side formwork 8 are detached.

In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.

Claims

1. The utility model provides a connecting piece that is used for cast-in-place linkage segment of sandwich superimposed shear wall which characterized in that includes:

2. The connector of claim 1, wherein the first connection fitting comprises a first end plate and a first threaded rod; the first end plate is fixed at one end of the first screw rod; the first end plate forms a first end of the first connection fitting, and the other end of the first screw forms a second end of the first connection fitting.

3. A coupling according to claim 2, wherein said second coupling fitting is a sleeve having internal threads on an inner wall thereof; the first end of the sleeve is used for being in threaded connection with the first screw.

4. The connector of claim 3, wherein the third connection fitting includes a second end plate and a second threaded rod; the second end plate is fixed at one end of the second screw rod; the second end plate forms a second end of the third connection fitting and the other end of the second screw forms a first end of the third connection fitting for threaded connection with the second end of the sleeve.

5. The utility model provides a cast-in-place linkage segment structure of sandwich superimposed shear wall which characterized in that includes:

The connector of claim 1; the first end of the first connecting fitting is embedded in the overhanging outer leaf plate, and the second end of the first connecting fitting extends out of the inner side of the overhanging outer leaf plate and is positioned in the overhanging functional plate; the second connecting fitting is arranged in the overhanging functional plate, and a first end of the second connecting fitting is connected with a second end of the first connecting fitting; the second end of the second connection fitting is connected with the first end of the third connection fitting, and the third connection fitting is at least partially located in the connection section reinforcement cage.

6. The cast-in-place connector segment structure of claim 5, wherein the first connector fitting comprises a first end plate and a first threaded rod; the second connecting fitting is a sleeve, and an inner wall of the sleeve is provided with an internal thread; the third connecting fitting comprises a second end plate and a second screw;

7. A cast in place connector section structure as claimed in claim 6, including a plurality of said connectors, part of said second end plate of said connector being located within said connector section reinforcement cage for embedment within said cast in place connector section.

8. The cast-in-place connecting section structure of claim 7, further comprising a connecting section inner formwork disposed inside the connecting section reinforcement cage; part of the second screw rods of the connecting pieces sequentially penetrate through the connecting section reinforcement cage and the connecting section inner side formwork, sleeves are sleeved outside the second screw rods, and the sleeves extend to the sleeves from the second end plate; the second end plate is located on the inner side of the connecting section inner side template and used for drawing the overhanging outer leaf plate and the connecting section inner side template.

9. The cast-in-place connecting section structure of claim 8, wherein the connecting pieces of the second end plates positioned in the connecting section reinforcement cage are alternately arranged along the height direction of the wall body with the connecting pieces of the second end plates positioned on the inner side of the connecting section inner side formwork.

10. The cast-in-place connecting section structure of claim 8, wherein the end surface of the first end of the sleeve is flush with the outer side surface of the overhanging functional plate, and the end surface of the second end of the sleeve is flush with the inner side surface of the overhanging functional plate.

11. A cast-in-place connector structure according to any one of claims 5 to 10, wherein the overhanging outer leaf, the overhanging functional panel and the sandwich laminated shear wall are independent members, the overhanging outer leaf and the overhanging functional panel are formed into a PCF panel, the PCF panel is connected between the sandwich laminated shear walls, and the PCF panel is butted with the outer leaf and the functional panel of the sandwich laminated shear wall.