CN211548221U - A prefabricated concrete shear wall with H-beam diagonal braces - Google Patents

Abstract

The utility model discloses an assembled concrete shear wall with H-shaped steel diagonal braces, which comprises a first shear wall unit and a second shear wall unit which are stacked up and down, and the two are connected and fixed by a connecting mechanism. ; Both the first shear wall unit and the second shear wall unit have a shear wall structure; the left concealed column, the upper concealed beam, the right concealed column and the lower concealed beam form a shear wall frame; the front and rear of the shear wall frame A first façade steel plate and a second façade steel plate are fixed on both sides; an oblique support is fixed in the shear wall frame; the oblique support includes two H-shaped steels, and the two H-shaped steels cross each other to form an X-shaped structure. The inner and edge columns of the shear wall frame are poured with concrete. The utility model improves the in-plane lateral stiffness, shear bearing capacity, flexural bearing capacity, ductility and energy dissipation capacity of the shear wall through the design of the oblique support, and at the same time, the shear wall unit can be pre-assembled in advance to facilitate the on-site construction.

Description

A prefabricated concrete shear wall with H-beam diagonal braces

technical field

The utility model relates to the technical field of construction engineering, in particular to an assembled concrete shear wall with H-shaped steel diagonal braces.

Background technique

In the super high-rise hybrid structural system, the shear wall is an important lateral force resistance component. As the height of the building structure increases, the ordinary cast-in-place reinforced concrete shear wall cannot meet the requirements of building use, and the economic benefits are poor.

The use of double-layer steel plate-concrete composite shear wall gives full play to the advantages of high lateral stiffness of reinforced concrete structure and good ductility of steel structure, improves the bearing capacity and seismic performance of shear wall, and avoids poor ductility and energy consumption of reinforced concrete structure. The steel structure has poor lateral resistance and is prone to local buckling.

The shear wall with diagonal bracing is based on the reinforcement of the ordinary shear wall, and the diagonal bracing composed of steel bars or section steel is added. Compared with the ordinary shear wall, it has better seismic performance and effectively improves the rigidity and energy dissipation capacity. and ductility, and at the same time, the diagonal bracing limits the development of diagonal cracks in concrete wall panels. However, the ordinary reinforced concrete shear wall with dark support or section steel support formed by adding longitudinal reinforcement and stirrup will have the problems of excessive local reinforcement and complex structure, which will increase the difficulty of on-site construction.

Utility model content

Aiming at the technical problems existing in the prior art, the purpose of this utility model is to provide a prefabricated concrete shear wall with H-shaped steel diagonal braces, which improves the in-plane lateral stiffness of the shear wall, Shear bearing capacity, flexural bearing capacity, ductility and energy dissipation capacity, while facilitating on-site construction.

The purpose of the utility model is achieved through the following technical solutions: comprising a first shear wall unit, a second shear wall unit and a connecting mechanism;

The first shear wall unit and the second shear wall unit are stacked up and down, and the two are connected and fixed by the connection mechanism; the connection mechanism includes a first connection plate and a second connection plate; The first connecting plate is used to connect and fix the front side of the first shear wall unit and the front side of the second shear wall unit, and the second connecting plate is used to connect the first shear wall unit. the rear side of the unit and the rear side of the second shear wall unit are connected and fixed;

Both the first shear wall unit and the second shear wall unit have a shear wall structure; the shear wall structure includes a left concealed column, a right concealed column, an upper concealed beam, a lower concealed beam, and an oblique support parts, the first façade steel plate and the second façade steel plate; the left hidden column and the right hidden column are both poured with concrete; the two ends of the upper hidden beam are respectively fixed and installed on the left hidden column and the On the right concealed column, the two ends of the lower concealed beam are respectively fixed and installed on the left concealed column and the right concealed column; the left concealed column, the upper concealed beam, the right concealed column and the The following concealed beams are enclosed to form a shear wall frame;

The first façade steel plate and the second façade steel plate are respectively fixed on the front and rear sides of the shear wall frame; the oblique supports are fixed in the shear wall frame; the oblique supports are The part includes two H-shaped steels, and the two H-shaped steels cross each other to form an X-shaped structure; the H-shaped steel includes a first flange plate, a second flange plate, and a connection between the first flange plate and the second flange plate. The web of the flange plate; the web is provided with a number of web perforations for the concrete to flow.

The above-mentioned prefabricated concrete shear wall with H-shaped steel diagonal braces, wherein the connection mechanism further comprises a first bolt, a first nut, a second bolt and a second nut;

The first bolt penetrates the first connecting plate, the first facade steel plate of the first shear wall unit, the upper concealed beam of the first shear wall unit, and the first shear wall unit in sequence. The second elevation steel plate and the second connecting plate are matched with the first nut to connect and fix the connecting mechanism with the first shear wall unit;

The first end of the second bolt passes through the first connecting plate, the first vertical steel plate of the second shear wall unit, the lower hidden beam of the second shear wall unit, the second The second elevation steel plate and the second connecting plate of the shear wall unit cooperate with the second nut to connect and fix the connecting mechanism with the second shear wall unit.

The above-mentioned prefabricated concrete shear wall with H-shaped steel diagonal braces, wherein the first connecting plate and the second connecting plate have the same structure and are both I-shaped plates; the first connecting plate includes a first connecting plate. a wing plate, a second wing plate, and a wing plate connecting plate connecting the first wing plate and the second wing plate;

The left hidden column of the first shear wall unit is connected with the left hidden column of the second shear wall unit, and the position of the connection is opposite to the position of the first wing plate;

The right hidden column of the second shear wall unit is connected with the right hidden column of the first shear wall unit, and the position of the connection is opposite to the position of the second wing plate;

The upper concealed beam of the first shear wall unit is connected with the lower concealed beam of the second shear wall unit, and the position of the connection is opposite to the position of the wing plate connection plate.

The above-mentioned fabricated concrete shear wall with H-shaped steel diagonal braces, wherein the first flange plate is fixedly connected with the first elevation steel plate, and the second flange plate is connected with the second elevation steel plate Fixed connection.

The above-mentioned prefabricated concrete shear wall with H-shaped steel diagonal braces, wherein the first façade steel plate is provided with a first perforation adapted to the first flange plate, and the second façade steel plate is provided with a first perforation adapted to the first flange plate. A second perforation matched with the second flange plate is arranged on the upper part.

The above-mentioned prefabricated concrete shear wall with H-shaped steel diagonal braces, wherein, the upper concealed beam and the lower concealed beam have the same structure, wherein the upper concealed beam includes a first beam, a second beam and connector;

The first beam member and the second beam member are arranged at intervals, and the space between the first beam member and the second beam member is for concrete to flow; the connecting member is used for connecting the first beam piece and the second beam piece.

The above-mentioned prefabricated concrete shear wall with H-shaped steel diagonal braces, wherein, the first beam member and the second beam member are angle steel, and the first beam member and the second beam member are symmetrically arranged, The connecting piece is a trim plate.

The above-mentioned prefabricated concrete shear wall with H-shaped steel diagonal braces, wherein the left hidden column is provided with a first pouring hole for pouring concrete into the left hidden column, and the right hidden column is provided with a first pouring hole for pouring concrete into the left hidden column. A second pouring hole for pouring concrete into the right dark column.

Compared with the prior art, the utility model has the following advantages and effects:

1. In the scheme disclosed in the embodiment of the present utility model, the shear wall unit and the connection structure of the shear wall unit can be prefabricated in a steel component processing plant, which is convenient for on-site installation and construction, and improves the construction rate. And pouring concrete in the left hidden column and right hidden column of the shear wall unit enhances the deformation capacity and bearing capacity of the edge of the prefabricated shear wall, making the shear wall more firm; and the shear wall unit is fixed with H-beam steel. The inclined support is composed of the inclined support and the vertical steel plate, concealed beam and concealed column of the shear wall unit to work together, which can effectively improve the in-plane lateral stiffness, shear bearing capacity and resistance of the composite shear wall. Bending capacity, ductility and energy dissipation capacity. At the same time, it can effectively improve the out-of-plane stiffness of the shear wall, thereby increasing the height-thickness ratio limit of the shear wall and reducing the self-weight of the shear wall.

2. The utility model connects the first façade steel plate, the second façade steel plate and the flange plate of the H-shaped steel, so that the oblique support piece and the first façade steel plate and the second façade steel plate work together. This combination method makes the mechanical properties of the composite shear wall better than that of the general steel plate-concrete composite shear wall, which is not a simple superposition of the two. The addition of the fixed boundary can reduce the effective aspect ratio, which helps to reduce the out-of-plane deformation of the façade steel plate and delay the local buckling of the façade steel plate.

3. In the embodiment of the present invention, the upper and lower concealed beams are arranged as a structure with a gap in the middle, which facilitates the pouring of concrete from the upper concealed beam into the shear wall frame.

4. In the embodiment of the present utility model, the left hidden column and the right hidden column are designed to set a vertical gap between the first restraint and the second restraint, which improves the seismic resistance of the assembled concrete shear wall with H-shaped steel diagonal braces. At the same time, the left concealed column and the right concealed column are used as the edge restraint components of the shear wall unit to solve the problem of the existing prefabricated shear wall system with vertical gap, because the shear wall unit lacks the restraint of the edge components, causing the wall The problem of weakening of body shear and flexural bearing capacity.

Description of drawings

1 is a perspective view of an assembled concrete shear wall with H-shaped steel diagonal braces according to an embodiment of the present invention;

Fig. 2 is the exploded view of Fig. 1;

3 is a schematic diagram of the internal structure of the assembly of the first shear wall unit and the second shear wall unit of the assembled concrete shear wall with H-shaped steel diagonal braces according to the embodiment of the present invention;

4 is a perspective view of the first connecting plate in the fabricated concrete shear wall with H-shaped steel diagonal braces according to an embodiment of the present invention;

5 is a perspective view of a shear wall unit in an assembled concrete shear wall with H-shaped steel diagonal braces according to an embodiment of the present invention;

6 is an exploded view of the shear wall unit in the prefabricated concrete shear wall with H-shaped steel diagonal braces without installation of front and rear facade steel plates according to the embodiment of the present utility model;

7 is a top view of a shear wall unit in an assembled concrete shear wall with H-shaped steel diagonal braces according to an embodiment of the present invention;

8 is a perspective view of an upper concealed beam in an assembled concrete shear wall with H-shaped steel diagonal braces according to an embodiment of the present invention;

9 is a perspective view of the oblique supports in the fabricated concrete shear wall with H-shaped steel diagonal braces according to an embodiment of the present invention;

10 is a front view of the first vertical steel plate in the fabricated concrete shear wall with H-shaped steel diagonal braces according to the embodiment of the present invention.

Among them, in the embodiment of the present utility model: 100, the first shear wall unit; 200, the second shear wall unit; 300, the connecting mechanism; 301, the first connecting plate; 3011, the first wing plate; 3012, the second wing plate; 3013, wing plate connecting plate; 302, second connecting plate; 303, first bolt; 304, second bolt; 400, first restraint; 500, second restraint; 600, vertical clearance;

1. Left concealed column; 10. First pouring hole; 2. Right concealed column; 20. Second pouring hole; 3. Upper concealed beam; 31. First beam piece; 32. Second beam piece; 33. Connecting piece ;4, lower concealed beam; 5, oblique support; 51, H-beam; 511, first flange plate; 512, second flange plate; 513, web; 5130, web perforation; 6, first Facade steel plate; 61. First perforation; 7. Second facade steel plate.

Detailed ways

The present utility model will be described in further detail below with reference to the embodiments and the accompanying drawings, but the embodiments of the present utility model are not limited thereto.

As shown in FIGS. 1-4 , a prefabricated concrete shear wall with H-shaped steel diagonal braces according to a preferred embodiment of the present invention includes a first shear wall unit 100 , a second shear wall unit 200 and a connecting mechanism 300 . ;

The first shear wall unit 100 and the second shear wall unit 200 are stacked on top of each other and are connected and fixed by the connection mechanism 300 , wherein the second shear wall unit 200 is located on the upper side of the first shear wall unit 100 The connecting mechanism 300 includes a first connecting plate 301 and a second connecting plate 302; the first connecting plate 301 is used to connect and fix the front side of the first shear wall unit 100 and the front side of the second shear wall unit 200. The two connecting plates 302 are used to connect and fix the rear side of the first shear wall unit 100 and the rear side of the second shear wall unit 200 . Both the first shear wall unit 100 and the second shear wall unit 200 can be pre-processed in the parts processing factory, and the pre-processed first shear wall unit 100 and the second shear wall unit 200 can be transported to the place to be installed Then, it is assembled through the connecting mechanism 300, and then concrete is poured on the assembled shear wall unit. Compared with the traditional cast-in-place building structure construction method, the on-site hoisting and combination are convenient, which saves operation time, reduces on-site labor and improves assembly efficiency.

As shown in Figures 5-8, both the first shear wall unit 100 and the second shear wall unit 200 have a shear wall structure; the shear wall structure includes a left concealed column 1, a right concealed column 2, an upper concealed beam 3, The lower concealed beam 4 , the oblique support 5 , the first façade steel plate 6 and the second façade steel plate 7 ; the left concealed column 1 and the right concealed column 2 are all poured with concrete. The left dark column 1 and the right dark column 2 are arranged at a distance, the interior of the left dark column 1 and the right dark column 2 are hollow, and both the left dark column 1 and the right dark column 2 are used for pouring concrete. The left concealed column 1 and the right concealed column 2 are used as the main supports of the fabricated concrete shear wall with H-beam diagonal braces, and at the same time as the edge restraint members of the fabricated concrete shear wall with H-beam diagonal braces. The left dark column 1 and the right dark column 2 are made of steel plates. In this embodiment, the left dark column 1 and the right dark column 2 are arranged as cubic columns, that is, the cross-sections of the left dark column 1 and the right dark column 2 are rectangular. or square. Of course, the left dark column 1 and the right dark column 2 can also be set as cylinders, which are not limited here. The strength of the concealed column is enhanced by pouring concrete in the left concealed column 1 and the right concealed column 2, and the deformation capacity and bearing capacity of the edge of the prefabricated shear wall of the H-shaped steel concrete diagonal brace are enhanced by the joint work of the steel plate and the concrete. The wall is more solid.

The two ends of the upper concealed beam 3 and the lower concealed beam 4 are respectively fixed and installed on the left concealed column 1 and the right concealed column 2; the upper concealed beam 3 and the lower concealed beam 4 are used to connect the left concealed column 1 and the right concealed column 2, wherein The upper concealed beam 3 and the lower concealed beam 4 are respectively located at the height positions of the corresponding floors. The left end of the upper concealed beam 3 is fixedly connected to the top of the left concealed column 1 , and the right end of the upper concealed beam 3 is fixedly connected to the top of the right concealed column 2 . The left end of the lower concealed beam 4 is fixedly connected to the bottom end of the left concealed column 1, and the right end of the lower concealed beam 4 is fixedly connected to the bottom end of the right concealed column 2. The left concealed column 1, the upper concealed beam 3, the right concealed column 2 and the lower concealed beam 4 form a shear wall frame. The first façade steel plate 6 and the second façade steel plate 7 are respectively fixed on the front and rear sides of the shear wall frame. It should be noted here that the "front" and "rear" of the shear wall frame here refer to the two opening positions of the frame formed by the shear wall frame. As for which opening is defined as "front", there is no specific limitation. The first elevation steel plate 6 and the second elevation steel plate 7 can block the two openings of the shear wall frame, so that the first elevation steel plate 6 and the second elevation steel plate 7 can be used as a reference. The space formed with the shear wall frame can be used for pouring concrete. The space formed in the first façade steel plate 6, the second façade steel plate 7 and the shear wall frame is a concrete pouring space. Due to the existence of the first façade steel plate 6 and the second façade steel plate 7, the poured concrete itself has no effect. There is a certain binding force, so that the formwork can not be set up when the concrete is poured, and the construction speed is improved.

As shown in Figures 6 and 9, the oblique support 5 is fixed in the shear wall frame; the oblique support 5 includes two H-shaped steels 51, and the two H-shaped steels 51 cross each other to form an X-shaped structure; the H-shaped steel 51 includes The first flange plate 511, the second flange plate 512 and the web 513 connecting the first flange plate 511 and the second flange plate 512; the web 513 is provided with a number of web perforations 5130 for concrete to flow. The first façade steel plate 6, the second façade steel plate 7 and the concrete pouring space formed by the shear wall frame are installed with diagonal supports 5, and the web perforations 5130 are provided to facilitate the pouring of concrete into the pouring space. The oblique support 5 formed by two H-shaped steels 51 obliquely intersecting has a large axial rigidity and can become one of the main stress components of the shear wall unit. The oblique support 5 works together with the first façade steel plate 6, the second façade steel plate 7, the left hidden column 1 and the right hidden column 2, which can effectively improve the in-plane lateral stiffness and shear bearing capacity of the composite shear wall , flexural bearing capacity, ductility and energy dissipation capacity. At the same time, it can effectively improve the out-of-plane stiffness of the shear wall, thereby increasing the height-thickness ratio limit of the shear wall and reducing the self-weight of the shear wall. The four ends of the oblique support 5 are respectively fixed to the four corner positions on the inner side of the shear wall frame. The design of the above structure improves the transmission capacity of the oblique force of the oblique support 5 to the transverse joints, which can alleviate the The phenomenon of stress concentration easily generated at the end of the oblique support.

As shown in FIGS. 2-4 , the connection mechanism 300 further includes a first bolt 303 and a second bolt 304; The face steel plate 6, the upper concealed beam of the first shear wall unit 100, the second elevation steel plate 7 of the first shear wall unit 100, and the second connecting plate 302, and cooperate with the first nut to connect the connecting mechanism 300 to the second connecting plate 300. A shear wall unit 100 is connected and fixed; the first end of the second bolt 304 penetrates the first connecting plate 301, the first facade steel plate 6 of the second shear wall unit 200, and the lower part of the second shear wall unit 200 in sequence. The beam, the second façade steel plate 7 and the second connecting plate 302 of the second shear wall unit 200 cooperate with the second nut to connect and fix the connecting mechanism 300 to the second shear wall unit 200 . The first connecting plate 301 and the second connecting plate 302 are respectively located on the front and rear sides of the intersection of the first shear wall unit 100 and the second shear wall unit 200 . Through the cooperation of the first bolt 303 and the first nut, the lower end of the first connecting plate 301 and the lower end of the second connecting plate 302 are fixed to the upper concealed beam of the first shear wall unit 100. The upper end of the first connecting plate 301 and the upper end of the second connecting plate 302 are fixed to the lower concealed beam of the second shear wall unit 100 through the cooperation of the second bolt 304 and the second nut. The first bolts 303 and the second bolts 304 are both anti-tension bolts, the two ends of the anti-tension bolts are nuts, and the nuts are in contact with the corresponding first connecting plate 301 or the second connecting plate 302.

As shown in FIG. 4 , the first connecting plate 301 and the second connecting plate 302 have the same structure and are both I-shaped plates; wherein, the first connecting plate 301 includes a first wing plate 3011, a second wing plate 3012 and a connecting first plate 3011. A wing plate 301, a wing plate connecting plate 3013 of the second wing plate 302;

The left hidden column of the first shear wall unit 100 is connected with the left hidden column of the second shear wall unit 200 , and the position of the connection is opposite to the position of the first wing plate 3011 . The width of the first wing plate 3011 is greater than the width of the wing plate connecting plate 3013, so that both ends of the first wing plate 3011 can be respectively fixed to the left hidden column of the first shear wall unit 100 and the second shear wall unit 200 on the left dark column, thereby improving the connection strength of the first connecting plate 301.

The right hidden column of the second shear wall unit 200 is connected with the right hidden column of the first shear wall unit 100 , and the position of the connection is opposite to the position of the second wing plate 3012 . Similarly, the width of the second wing plate 3012 is larger than the width of the wing plate connecting plate 3013, so that both ends of the first wing plate 3011 can be respectively fixed to the right hidden column of the first shear wall unit 100 and the second shear wall on the right dark column of the unit 200 , thereby improving the connection strength of the first connecting plate 301 .

The upper concealed beam of the first shear wall unit 100 is connected with the lower concealed beam of the second shear wall unit 200 , and the position of the connection is opposite to the position of the wing plate connection plate 3013 . Similarly, the structure of the second connecting plate 302 is the same as that of the first connecting plate 301, except that the first connecting plate 301 and the second connecting plate 302 are respectively located on the front and rear sides of the shear wall.

In order to further enhance the support strength of the oblique support 5, in this embodiment, the first flange plate 511 is fixedly connected with the first vertical steel plate 6, and the second flange plate 512 is fixedly connected with the second vertical steel plate 7. That is to say, the front and rear sides of the oblique support 5 are respectively fixed to the first elevation steel plate 6 and the second elevation steel plate 7, so that the oblique support 5 can lift the first elevation steel plate 6 and the second elevation steel plate 7. When the concrete is poured between the first façade steel plate 6 and the second façade steel plate 7, the deformation of the first façade steel plate 6 and the second façade steel plate 7 is caused by the pressure of the concrete. In the present application, by connecting the first façade steel plate 6, the second façade steel plate 7 and the flange plate of the H-shaped steel, the oblique support 5, the first façade steel plate 6 and the second façade steel plate 7 work together. This combination method makes the mechanical properties of the composite shear wall better than that of the general steel plate-concrete composite shear wall, which is not a simple superposition of the two. The addition of the fixed boundary can reduce the effective aspect ratio, which helps to reduce the out-of-plane deformation of the façade steel plate and delay the local buckling of the façade steel plate. At the same time, the flange plate of the oblique support 5 and the vertical steel plate together form a "press rod and tie rod system" with an effective width greater than the range of the diagonal bracing, which helps to improve the contribution of the oblique support to the mechanical performance of the shear wall.

As shown in FIG. 10 , in order to facilitate the connection and fixation of the oblique support 5 with the first façade steel plate 6 and the second façade steel plate 7 , the first façade steel plate 6 is provided with a corresponding first flange plate 511 . Matched first through holes 61 . There are a plurality of first through holes 61 , and the arrangement of the first through holes 61 is consistent with the extending direction of the first flange plate 511 . Welding of the first elevation steel plate 6 and the first flange plate 511 . The construction operation is convenient and the assembly efficiency is improved.

Similarly, a second perforation matched with the second flange plate 512 is also provided on the second elevation steel plate 7 . There are also a plurality of second perforations, and the arrangement of the second perforations is consistent with the extending direction of the second flange plate 511 . Welding of the elevation steel plate 7 and the second flange plate 512 .

Specifically, as shown in FIG. 3 , the upper concealed beam 3 and the lower concealed beam 4 have the same structure, wherein the upper concealed beam 3 includes a first beam member 31 , a second beam member 32 and a connecting member 33 ;

The first beam member 31 and the second beam member 32 are arranged at intervals, and the space between the first beam member 31 and the second beam member 32 is used for concrete to flow; the connecting member 33 is used to connect the first beam member 31 and the second beam member 32. The spaced arrangement of the first beam member 31 and the second beam member 32 facilitates pouring concrete into the shear wall frame. In the present embodiment, the first beam member 31 and the second beam member 32 are both set as angle steel, and the connecting member 33 is a trim plate. The first beam member 31 and the second beam member 32 are both L-shaped structures, and the first beam member 31 and the second beam member 32 are symmetrically arranged with the gap formed between the first beam member 31 and the second beam member 32 as the center .

In another embodiment, the first beam member 31 and the second beam member 32 are both channel steel, and the notch of the channel steel of the first beam member 31 is opposite to the notch of the channel steel of the second beam member 32 . At this time, the upper end of the first beam member 31 is connected and fixed with the upper end of the second beam member 32 through the tie plate, and the lower end of the first beam member 31 is connected and fixed with the lower end of the second beam member 32 through the tie plate.

Specifically, the left concealed column 1 is provided with a first pouring hole 10 for pouring concrete into the left concealed column 1 , and the right concealed column 2 is provided with a second pouring hole 20 for pouring concrete into the right concealed column 2 . Concrete is poured into the left dark column 1 through the first pouring hole 10 , and concrete is poured into the cavity in the right dark column 2 through the second pouring hole 20 . The arrangement of the first pouring hole 10 and the second pouring hole 20 facilitates the pouring of concrete in the concealed column of the shear wall unit. And the position of the first pouring hole of the first shear wall unit 100 and the first pouring hole of the second shear wall unit 200 are opposite, so that only the left hidden column 1 of the second shear wall unit 200 needs to be poured, then pouring The concrete will enter into the first pouring hole of the first shear wall unit 100 through the first pouring hole 10, so as to pour the dark column of the first shear wall unit.

Further, as shown in Fig. 1-2, the left concealed column 1 and the right concealed column 2 of the assembled shear wall unit are also arranged between the first restraint member 400 and the second restraint member 500, and the left concealed column 1 A vertical gap 600 is provided between the first restraining member 400 , and a vertical gap 600 is also provided between the right dark column 2 and the second restraining member 500 . The vertical gap 600 improves the seismic performance of the prefabricated concrete shear wall with H-beam diagonal bracing. At the same time, the left hidden column 1 and the right hidden column 2 are used as the edge restraint members of the shear wall unit to solve the existing problems with vertical In the prefabricated shear wall system with a gap of 600, because the shear wall unit lacks edge member constraints, the shear and bending bearing capacity of the wall is weakened.

Another embodiment of the present utility model further discloses that the above-mentioned construction method of the prefabricated concrete shear wall with H-shaped steel diagonal braces includes the following steps:

1) Prefabricated parts: left concealed column 1, right concealed column 2, upper concealed beam 3, lower concealed beam 4, inclined support 5, first facade steel plate 6, second facade steel plate 7, first connecting plate 301 , the second connecting plate 302 and the bolts. The left concealed column 1, the right concealed column 2, the first beam 31 and the second beam 32 constituting the upper concealed beam 3 and the lower concealed beam 4, and the first beam 31 and the second beam are prefabricated in the steel component processing plant 32 of the connecting piece 33 , the first connecting plate 301 and the second connecting plate 302 . When prefabricating the left concealed column 1, the right concealed column 2, the upper concealed beam 3, the lower concealed beam 4, the first facade steel plate 6, the second facade steel plate 7, the first connecting plate 301 and the second connecting plate 302, the above Perforations for bolts to pass through are provided at the corresponding positions of the components. At the same time, the prefabricated first and second facade steel plates 6 and 7 are provided with first and second perforations, which are convenient for installing and fixing the first and second facade steel plates 6 and 7. Web perforations 5130 are provided on the web 513 of the H-beam. The first beam member 31 and the second beam member 32 are connected and fixed by connecting members 33 to form an upper concealed beam 3 and a lower concealed beam 4.

2) Prefabricated shear wall unit:

Weld the left concealed column 1, the upper concealed beam 3, the right concealed column 2 and the lower concealed beam 4 in sequence to form a shear wall frame;

Fix the diagonal support 5 into the shear wall frame;

The first façade steel plate 6 and the second façade steel plate 7 are respectively welded to the front and rear sides of the shear wall frame, and the first façade steel plate 6 is welded to the H-shaped steel 51 through the perforations on the first façade steel plate 6. On the first flange plate 511 , the second elevation steel plate 7 is welded to the second flange plate 512 of the H-shaped steel 51 through the perforations on the second elevation steel plate 7 .

3) Transport the prefabricated shear wall unit, the first connecting plate 301, the second connecting plate 302 and the bolts to the installation point; stack the two shear wall units up and down in the height direction, and use the first connecting plate 301 and The second connecting plate 302 connects and fixes the two shear wall units stacked up and down;

4) Concrete is poured into the shear wall unit, and concrete is poured into the left hidden column 1 and the right hidden column 2 at the same time. After curing and forming, the construction process is completed.

In the solutions disclosed in the embodiments of the present utility model, the shear wall units and the connection structures of the shear wall units can be prefabricated in a steel component processing plant, which is convenient for on-site installation and construction and improves the construction speed. And pouring concrete in the left hidden column and right hidden column of the shear wall unit enhances the deformation capacity and bearing capacity of the edge of the prefabricated shear wall, making the shear wall more firm; and the shear wall unit is fixed with H-beam steel. The inclined support is composed of the inclined support, so that the inclined support and the vertical steel plate and the hidden column of the shear wall unit work together, which can effectively improve the in-plane lateral stiffness, shear bearing capacity and bending bearing capacity of the composite shear wall. , ductility and energy dissipation capacity. At the same time, it can effectively improve the out-of-plane stiffness of the shear wall, thereby increasing the height-thickness ratio limit of the shear wall and reducing the self-weight of the shear wall.

The embodiment of the present utility model connects the first façade steel plate, the second façade steel plate and the flange plate of the H-shaped steel, so that the oblique support and the first façade steel plate and the second façade steel plate work together. This combination method makes the mechanical properties of the composite shear wall better than that of the general steel plate-concrete composite shear wall, which is not a simple superposition of the two. The addition of the fixed boundary can reduce the effective aspect ratio, which helps to reduce the out-of-plane deformation of the façade steel plate and delay the local buckling of the façade steel plate.

In the embodiment of the present invention, the upper and lower concealed beams are arranged as a structure with a gap in the middle, which facilitates the pouring of concrete from the upper concealed beam into the frame of the shear wall.

In the embodiment of the utility model, the left hidden column and the right hidden column are designed to set vertical gaps between the first restraint and the second restraint, thereby improving the seismic performance of the assembled concrete shear wall with H-shaped steel diagonal braces, At the same time, the left concealed column and the right concealed column are used as the edge restraint components of the shear wall unit to solve the problem of the existing prefabricated shear wall system with vertical gap, because the shear wall unit lacks the restraint of the edge components, resulting in the resistance of the wall. The problem of weakening of shear and bending bearing capacity.

The above-mentioned embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited by the above-mentioned embodiments, and any other changes, modifications, and substitutions made without departing from the spirit and principle of the present utility model , combination and simplification, all should be equivalent replacement methods, which are all included in the protection scope of the present invention.

Claims (8)

1. The assembly type concrete shear wall with the H-shaped steel inclined strut is characterized by comprising a first shear wall unit, a second shear wall unit and a connecting mechanism;

the first shear wall unit and the second shear wall unit are vertically stacked and are fixedly connected through the connecting mechanism; the connecting mechanism comprises a first connecting plate and a second connecting plate; the first connecting plate is used for fixedly connecting the front side of the first shear wall unit and the front side of the second shear wall unit, and the second connecting plate is used for fixedly connecting the rear side of the first shear wall unit and the rear side of the second shear wall unit;

the first shear wall unit and the second shear wall unit are provided with shear wall structures; the shear wall structure comprises a left hidden column, a right hidden column, an upper hidden beam, a lower hidden beam, an oblique supporting piece, a first vertical face steel plate and a second vertical face steel plate; concrete is poured in the left hidden column and the right hidden column; two ends of the upper hidden beam are fixedly arranged on the left hidden column and the right hidden column respectively, and two ends of the lower hidden beam are fixedly arranged on the left hidden column and the right hidden column respectively; the left hidden column, the upper hidden beam, the right hidden column and the lower hidden beam form a shear wall frame;

the first vertical face steel plate and the second vertical face steel plate are respectively fixed on the front side and the rear side of the shear wall frame; the oblique supporting piece is fixed in the shear wall frame; the oblique supporting piece comprises two H-shaped steels which are mutually crossed to form an X-shaped structure; the H-shaped steel comprises a first flange plate, a second flange plate and a web plate for connecting the first flange plate and the second flange plate; and a plurality of web plate through holes for concrete to flow are formed in the web plates.

2. The fabricated concrete shear wall with H-beam braces of claim 1, wherein the connection mechanism further comprises a first bolt, a first nut, a second bolt and a second nut;

the first bolt sequentially penetrates through the first connecting plate, the first vertical face steel plate of the first shear wall unit, the upper hidden beam of the first shear wall unit, the second vertical face steel plate of the first shear wall unit and the second connecting plate, and is matched with the first nut to connect and fix the connecting mechanism and the first shear wall unit;

the first end of the second bolt penetrates through the first connecting plate, the first vertical face steel plate of the second shear wall unit, the lower hidden beam of the second shear wall unit, the second vertical face steel plate of the second shear wall unit and the second connecting plate in sequence, and is matched with the second nut to fixedly connect the connecting mechanism with the second shear wall unit.

3. The fabricated concrete shear wall with H-beam diagonal braces of claim 2, wherein the first connecting plate and the second connecting plate have the same structure and are both i-shaped plates; the first connecting plate comprises a first wing plate, a second wing plate and a wing plate connecting plate for connecting the first wing plate and the second wing plate;

the left hidden column of the first shear wall unit is connected with the left hidden column of the second shear wall unit, and the position of the connection position is opposite to that of the first wing plate;

the right embedded column of the second shear wall unit is connected with the right embedded column of the first shear wall unit, and the position of the connection position is opposite to that of the second wing plate;

the upper hidden beam of the first shear wall unit is connected with the lower hidden beam of the second shear wall unit, and the position of the connection position is opposite to the position of the wing plate connecting plate.

4. The fabricated concrete shear wall with H-beam braces of claim 1, wherein the first flange plate is fixedly connected with the first facade steel plate and the second flange plate is fixedly connected with the second facade steel plate.

5. The fabricated concrete shear wall with H-shaped steel diagonal braces according to claim 4, wherein the first vertical steel plate is provided with a first perforation matched with the first flange plate, and the second vertical steel plate is provided with a second perforation matched with the second flange plate.

6. The fabricated concrete shear wall with H-beam braces of claim 1, wherein the upper hidden beam and the lower hidden beam have the same structure, wherein the upper hidden beam comprises a first beam member, a second beam member and a connecting member;

the first beam piece and the second beam piece are arranged at intervals, and a gap at the interval between the first beam piece and the second beam piece is used for concrete to flow; the connecting piece is used for connecting the first beam piece and the second beam piece.

7. The fabricated concrete shear wall with H-shaped steel diagonal braces according to claim 6, wherein the first beam piece and the second beam piece are angle steels, the first beam piece and the second beam piece are symmetrically arranged, and the connecting pieces are batten plates.

8. The fabricated concrete shear wall with H-shaped steel diagonal braces according to claim 1, wherein the left hidden column is provided with a first pouring hole for pouring concrete into the left hidden column, and the right hidden column is provided with a second pouring hole for pouring concrete into the right hidden column.

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