CN206752748U - A kind of vertical connecting structure of fabricated shear wall - Google Patents

Abstract

A vertical connection structure of a prefabricated shear wall, the connection structure includes shear wall components vertically spliced by connecting components, the inner surface of the joint of the shear wall components is provided along the entire length of the joint, and the notch faces indoors The upper shear wall members are thrown out with vertical ribs at the bottom, and the lower shear wall members are thrown out with vertical ribs at the top. The connecting components include groove-shaped horizontal steel frames and sleeves with openings facing the interior. The throwing ribs all pass through corresponding positions and are threadedly connected with the sleeve. The channel-shaped horizontal steel frames of the two vertically intersecting shear wall members on the same floor are fixedly connected, and each channel-shaped horizontal steel frame is connected to each other to form a steel ring beam. In the utility model, an inlay groove is set on the shear wall member, the throwing tendons are inserted into the inlay groove and threaded, and a groove-shaped steel frame and an inner wire sleeve are installed in the inlay groove to realize detachable connection and facilitate the installation of the wallboard , Speed up the construction of the structure, reduce the wet work on site, and improve the assembly level of the building structure.

Description

A vertical connection structure of prefabricated shear wall

technical field

The utility model belongs to the connection structure of building structures, in particular to a vertical connection structure of an assembled concrete shear wall.

Background technique

In recent years, the construction of green, energy-saving, and healthy buildings has become a basic national policy of our country. The industrialized engineering construction model marked by standardization and industrialization requires factory-based prefabrication of engineering construction and on-site mechanized assembly.

In the prefabricated concrete shear wall components, the vertical connection of the shear wall is one of the key technologies. The existing connection methods all have disadvantages: 1. There are cold and heat bridges in the vertical connection part of the shear wall, which reduces the thermal insulation performance of the building; 2. It is difficult to connect the vertical reinforcement of the shear wall. The material cost is high, and the construction quality inspection is inconvenient; 3. The lap connection of the core-pulling hole-forming stirrup restrains the steel grout anchor and the metal bellows hole-forming steel grout anchor lap connection is a vertical steel bar connection, and there are a number of openings Many, difficult installation, large amount of grouting material, easy cracking of the protective layer at the opening, etc.; 4. The vertical reinforcement of the prefabricated wall is generally double-gluten, the number of which is large, the lap length is long, and the upper The longer steel bar sticks out of the wall, which is inconvenient for transportation and construction.

Utility model content

The purpose of this utility model is to provide a vertical connection structure of a prefabricated shear wall. It is necessary to solve the problems of poor thermal insulation performance, high connection cost, inconvenient inspection and installation of the existing vertical connection structure of the shear wall. Technical problems such as high difficulty, large amount of grouting material used and inconvenient transportation and construction.

In order to achieve the above object, the utility model adopts the following technical solutions:

A vertical connection structure of a prefabricated shear wall, comprising upper and lower layers of shear wall components vertically spliced through connecting components, and the inner surface of the joint between the upper and lower layers of shear wall components is provided with an edge joint It is set all the way, with the notch facing the indoor caulking groove. At least one row of bottom vertical ribs extending into the caulking groove is thrown out from the inner side of the bottom of the upper shear wall member, and at least one row is thrown out from the inner side of the top shear wall member of the lower layer. A row of top vertical ribs extending into the embedded groove,

The connection assembly includes a channel-shaped horizontal steel frame and a sleeve that are adapted to the size of the caulking and are arranged along the entire length of the joint. The opening of the channel-shaped horizontal steel frame faces the interior, including a horizontal upper The side plates and the horizontal lower flange plates, the end faces of the upper and lower flange plates are flush with the inner surfaces of the shear wall members,

The upper flange plate is provided with an upper flange plate piercing hole corresponding to the bottom vertical ribs one by one, and the bottom vertical rib passes through the upper flange plate piercing hole and is tightened by the upper flange plate sleeve. solid.

The lower flange plate has a lower flange plate piercing hole corresponding to the top vertical ribs one by one, and the top vertical ribs pass through the lower flange plate piercing hole and are tightened by the lower flange plate sleeve. solid,

The channel-shaped horizontal steel frames of the two vertically intersecting shear wall members on the same floor are fixedly connected, and each channel-shaped horizontal steel frame is connected to each other to form a steel ring beam.

The vertical throwing bars at the bottom and the vertical throwing bars at the top are stressed steel bars or pre-embedded steel bars in the shear wall members, and the throwing ends of the bottom vertical bars and the top vertical bars extending into the embedded grooves are both There are external threads, and the corresponding upper and lower flange plate sleeves are provided with internal threads compatible with the external threads, and the ribs are connected to the flange plate sleeves through threads.

All the embedding grooves are set on the bottom inside of the lower shear wall member, the end faces of the upper and lower flange plates are flush with the inner surface of the lower shear wall member, and the lower flange of the lower flange plate The side surfaces are flush with the bottom surfaces of the upper shear wall members.

The caulking grooves are all set on the inner side of the bottom of the upper shear wall member, the end faces of the upper and lower flange plates are flush with the inner surface of the upper shear wall member, and the lower flange of the lower flange plate The side surfaces are flush with the bottom surfaces of the upper shear wall members.

The channel-shaped horizontal steel frame is section steel, and the included angles between the upper and lower flange plates and the side plates are not less than 90 degrees and not more than 120 degrees.

The distance between the ends of the vertical ribs at the bottom and the ends of the vertical ribs at the top is not less than the sum of the axial lengths of the upper flange sleeve and the lower flange sleeve.

The shear wall components are divided into an inner wall surface and an outer wall surface, the inner wall surface is a reinforced concrete slab, the outer wall surface is a sandwich panel including an outer leaf plate, an insulation layer and an inner leaf stress plate, and the The bearing plate of the inner leaf is a reinforced concrete plate.

When the upper layer shear wall member and the lower layer shear wall member are both exterior wall surfaces, the groove-shaped horizontal steel frame is embedded in the range of the inner leaf stress plate. When the upper shear wall member and the lower wall structure are both inner walls, the channel-shaped horizontal steel frame is directly embedded in the inner walls.

The distance between the vertical side panels of the channel-shaped horizontal steel frame and the insulation layer is not less than 20 mm.

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

The utility model provides a slot on the shear wall member, and the length of the ribs reserved for the wall panel is relatively short, which is convenient for the transportation of the wall panel; And the inner wire sleeve, to realize the connection between the upper and lower precast concrete shear wall panels, without the need for traditional slurry anchor lap construction, through the combination of external thread, internal thread and steel frame to achieve detachable connection, easy to install the wall panel , Speed up the construction of the structure, reduce the wet work on site, and improve the assembly level of the building structure.

The utility model vertically connects the wall body of the shear wall by adopting a channel-shaped steel frame, and at the same time, because the steel itself has good ductility, the seismic bearing capacity of the building is greatly improved. After the steel frames are connected with each other, a steel ring beam structure is formed as a whole, which improves the integrity and earthquake resistance of the structure.

The utility model solves the problem of the cold and heat bridge at the vertical connection node of the prefabricated concrete shear wall. The thermal insulation board of the outer wall extends to the node position, and the connection node is located on the inner blade plate inside, which cuts off the cold bridge at the connection node. Improve the energy efficiency of the building.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Figure 1 is a schematic diagram of the overall installation of the building.

Fig. 2 is a schematic diagram of the structural disassembly of the vertical connection of the upper and lower shear wall members in the first embodiment.

Fig. 3 is a schematic diagram of the structural combination of the vertical connection of the upper and lower shear wall members in the first embodiment.

FIG. 4 is a schematic side view of the structure of FIG. 3 .

Fig. 5 is a schematic diagram of the structural disassembly of the vertical connection of the upper and lower shear wall members in the second embodiment.

Fig. 6 is a schematic diagram of the structural combination of the vertical connection of the upper and lower shear wall members in the second embodiment.

FIG. 7 is a schematic side view of the structure of FIG. 6 .

Fig. 8 is a schematic diagram of the structural disassembly of the vertical connection of the upper and lower shear wall members in the third embodiment.

Fig. 9 is a schematic diagram of the structural combination of the vertical connection of the upper and lower shear wall members in the third embodiment.

FIG. 10 is a schematic side view of the structure of FIG. 9 .

Reference signs: 1 - upper shear wall component, 1.1 - bottom vertical reinforcement, 2 - lower shear wall component, 2.1 - top vertical reinforcement, 3 - embedded groove, 4 - grooved horizontal steel frame, 4.1 - Upper flange plate, 4.11 - Upper flange plate hole, 4.2 - Lower flange plate, 4.21 - Lower flange plate hole, 4.3 - Side plate, 5 - Upper flange plate sleeve, 6 - Lower flange plate sleeve Tube, 7-inner wall surface, 8-outer wall surface, 8.1-outer leaf plate, 8.2-insulation layer, 8.3-inner leaf force plate, 9-steel ring beam.

detailed description

Embodiment 1 Referring to Figures 1-4, a prefabricated shear wall vertical connection structure includes upper and lower layers of shear wall components that are vertically spliced through connecting components, and upper and lower layers of shear wall components The inner surface of the joint is provided with a slot 3 arranged along the entire length of the joint, with the notch facing the interior. The inner side of the bottom of the upper shear wall member 1 has at least two rows of bottom vertical shafts extending into the slot 3. Rib 1.1, at least two rows of top vertical ribs 2.1 extending into the embedding groove 3 are thrown out from the inner side of the top of the lower shear wall member 2. In this embodiment, there are two rows of bottom vertical ribs 1.1 and top vertical ribs 2.1 aligned up and down. The vertical throwing bars 1.1 at the bottom and the vertical throwing bars 2.1 at the top are stress reinforcements or pre-embedded reinforcements in the shear wall components.

The connection assembly includes a channel-shaped horizontal steel frame 4 and a sleeve that are adapted to the size of the caulking and are arranged along the entire length of the joint. The opening of the channel-shaped horizontal steel frame 4 faces indoors, including a horizontal upper flange plate 4.1 1. The end surfaces of the vertical side plate 4.3 and the horizontal lower flange plate 4.2, the upper flange plate 4.1 and the lower flange plate 4.2 are flush with the inner surface of the shear wall member.

The upper flange plate 4.1 is provided with an upper flange plate piercing hole 4.11 corresponding to the bottom vertical rib 1.1 one by one, and the bottom vertical rib 1.1 passes through the upper flange plate piercing hole 4.11 and passes through the upper wing The edge plate sleeve 5 is fastened.

The lower flange plate 4.2 has a lower flange plate piercing hole 4.21 corresponding to the top vertical rib 2.1 one by one, and the top vertical rib 2.1 passes through the lower flange plate piercing hole 4.21 and passes through the lower wing The flange sleeve 6 is fastened.

Referring to Fig. 1 , the groove-shaped horizontal steel frames of two vertically intersecting shear wall members on the same floor are fixedly connected, and the steel ring beams 9 are formed after the groove-shaped horizontal steel frames are connected to each other.

Both the bottom vertical ribs 1.1 and the top vertical ribs 2.1 extend into the insertion groove 3 and are provided with external threads, and the corresponding upper flange sleeve 5 and lower flange sleeve 6 are internally opened. There are internal threads compatible with external threads, and the ribs are connected with the flange plate sleeve through threads.

In this embodiment, all of the caulking grooves 3 are arranged on the inner side of the top of the lower shear wall member 2, and the end faces of the upper flange plate 4.1 and the lower flange plate 4.2 are flat with the inner surface of the lower shear wall member 2. The upper side surface of the upper flange plate 4.1 is flush with the top surface of the lower shear wall member 2.

The second embodiment is shown in Figures 1 and 5-7. The difference from the first embodiment is that the caulking grooves 3 are all set on the inner side of the top and bottom of the upper shear wall member 1, and the upper flange plate 4.1 and the lower wing The end surfaces of the flange plates 4.2 are flush with the inner surface of the upper shear wall member 1, and the lower surface of the lower flange plate 4.2 is flush with the bottom surface of the upper shear wall member 1.

In addition, the shear wall components in the utility model are divided into an inner wall surface 7 and an outer wall surface 8, the inner wall surface 7 is a reinforced concrete slab, and the outer wall surface 8 includes an outer leaf plate 8.1, an insulation layer 8.2 Sandwich panels with the inner leaf force plate 8.3, the inner leaf force plate 8.3 is a reinforced concrete plate. In this embodiment, the upper shear wall member 1 and the lower shear wall member 2 are both exterior wall surfaces, so the groove-shaped horizontal steel frame 4 is embedded in the range of the inner leaf stress plate 8.3, and the groove-shaped horizontal The distance between the vertical side plate 4.3 of the steel frame 4 and the insulation layer 8.2 is not less than 20mm. At this time, the insulation layer is continuous at the seams and is not affected by thermal and cold bridges.

The third embodiment is shown in Fig. 1 and 8-10. The difference from the second embodiment is that the upper shear wall member 1 and the lower shear wall member 2 are both interior wall surfaces, and the channel-shaped horizontal steel frame 4 is directly embedded in the inner wall. inside.

In the present utility model, the groove-shaped horizontal steel frame 4 can be shaped steel, and the included angles between the upper flange plate 4.1, the lower flange plate 4.2 and the side plate 4.3 are not less than 90 degrees, not more than 120 degrees, Generally, direct vertical welding is used in actual processing.

The size of the section of the socket 3 can be determined according to the specific structural design.

The distance between the end of the bottom vertical rib 1.1 and the end of the top vertical rib 2.1 is not less than the sum of the axial lengths of the upper flange sleeve 5 and the lower flange sleeve 6, ensuring that the construction can It is convenient for workers to put the sleeve on the swinging tendon.

As shown in Figure 1-10, a construction method for the vertical connection structure of a prefabricated shear wall, the construction steps are as follows:

Step 1, design and split the shear wall components according to the structural load, and design the components of the vertical connection structure of each shear wall;

Step 2: Assembling the mold of the prefabricated concrete shear wall component, prefabricated by the flat mold method, reserving a caulking groove 3 at the design position of the upper shear wall component 1 or the lower shear wall component 2, and the upper shear wall component At least one row of bottom vertical ribs 1.1 extending into the insertion groove 3 is thrown out from the inner side of the bottom, and at least one row of top vertical ribs 2.1 extending into the insertion groove 3 is thrown out from the inner side of the top of the lower shear wall member;

Step 3, pouring the concrete of the shear wall member, cleaning the bottom vertical rib 1.1 and the top vertical rib 2.1, and threading the outer thread at the throwing end of the rib;

Step 4, maintain the shear wall components, and carry out anti-corrosion treatment of anti-rust paint on the ribs;

Step 5, according to the force design of the grooved horizontal steel frame and the sleeve used in conjunction with the ribs, the upper flange plate 4.1 of the grooved horizontal steel frame is opened in the factory with the upper flange plate through the reinforcement hole 4.11, and the groove The lower flange plate 4.2 of the type horizontal steel frame is provided with the lower flange plate piercing rib hole 4.21; the sleeve includes the upper flange plate sleeve 5 and the lower flange plate sleeve 6, and the internal processing of the sleeve is matched with the external thread. thread;

Step 6, demoulding and rinsing: remove the mold of the shear wall components, wash, inspect, and mark, and then transport all the shear wall components to the site in sequence according to the transportation plan.

Step 7, hoisting construction: According to the hoisting plan, hoist the upper shear wall member 1 to align with the predetermined position of the lower shear wall member 2;

Step 8: Workers stand indoors and first embed the channel-shaped horizontal steel frame 4 into the insertion groove 3 according to the designed position. The flange plate 4.1, the side plate 4.3 and the lower flange plate 4.2 are all in close contact with the surface of the caulking groove 3;

Step 9, then pass the top vertical rib 2.1 through the rib hole 4.21 of the lower flange plate and fasten it through the sleeve of the lower flange plate 6; pass the bottom vertical rib 1.1 through the rib hole 4.11 of the upper flange plate And by fastening the upper flange plate sleeve 5, the connection is completed.

Claims (9)

1. A vertical connection structure of a prefabricated shear wall, comprising upper and lower layers of shear wall members vertically spliced by connecting components, characterized in that: the inner side of the joint between the upper and lower layers of shear wall members The surface is provided with an inlay groove (3) arranged along the entire length of the joint, with the notch facing the interior, and the inner side of the bottom of the upper shear wall member (1) has at least one row of bottom vertical grooves extending into the inlay groove (3). Throwing tendons (1.1), there is at least one row of top vertical throwing tendons (2.1) extending into the embedding groove (3) from the top inner side of the lower shear wall member (2), The connection assembly includes a channel-shaped horizontal steel frame (4) and a sleeve that are adapted to the size of the caulking and are arranged along the entire length of the joint. The opening of the channel-shaped horizontal steel frame (4) faces indoors, including the horizontal upper The flange plate (4.1), the vertical side plate (4.3) and the horizontal lower flange plate (4.2), the end faces of the upper flange plate (4.1) and the lower flange plate (4.2) and the inner flat surface, The upper flange plate (4.1) is provided with upper flange plate piercing holes (4.11) corresponding to the bottom vertical ribs (1.1), and the bottom vertical ribs (1.1) pass through the upper flange plate Pierce the reinforcement hole (4.11) and fasten it through the upper flange plate sleeve (5); The lower flange plate (4.2) has a lower flange plate piercing hole (4.21) corresponding to the top vertical rib (2.1) one by one, and the top vertical rib (2.1) passes through the lower flange plate Pierce the rib holes (4.21) and fasten with the lower flange sleeve (6), The groove-shaped horizontal steel frames of two vertically intersecting shear wall members on the same floor are fixedly connected, and each groove-shaped horizontal steel frame is connected to each other to form a steel ring beam (9). 2. The vertical connection structure of the prefabricated shear wall according to claim 1, characterized in that: the bottom vertical ribs (1.1) and the top vertical ribs (2.1) are internal forces of the shear wall components Steel bars or pre-embedded steel bars, the bottom vertical throwing bars (1.1) and the top vertical throwing bars (2.1) are provided with external threads at the throwing ends extending into the embedding groove (3), and the corresponding upper flange plate sleeves The tube (5) and the lower flange plate sleeve (6) are provided with internal threads compatible with the external thread, and the ribs and the flange plate sleeve are connected by threads. 3. The vertical connection structure of the prefabricated shear wall according to claim 1, characterized in that: all the caulking grooves (3) are set on the top inner side of the lower shear wall member (2), and the upper flange The end surfaces of the plate (4.1) and the lower flange plate (4.2) are flush with the inner surface of the shear wall member (2), and the lower surface of the lower flange plate (4.2) is flush with the upper shear wall member (2) ) is flush with the bottom surface. 4. The vertical connection structure of the prefabricated shear wall according to claim 1, characterized in that: all the caulking grooves (3) are set on the bottom inner side of the upper shear wall member (1), and the upper flange The end surfaces of the plate (4.1) and the lower flange plate (4.2) are flush with the inner surface of the upper shear wall member (1), and the lower surface of the lower flange plate (4.2) is flush with the upper shear wall member ( 1) The bottom surface is flush. 5. The vertical connection structure of prefabricated shear walls according to claim 1, characterized in that: the channel-shaped horizontal steel frame (4) is section steel, and the upper flange plate (4.1) and the lower flange plate The angle between (4.2) and the side plate (4.3) is not less than 90 degrees and not more than 120 degrees. 6. The vertical connection structure of prefabricated shear walls according to claim 1 or 2, characterized in that: the ends of the bottom vertical ribs (1.1) and the top vertical ribs (2.1) The spacing is not less than the sum of the axial lengths of the upper flange sleeve (5) and the lower flange sleeve (6). 7. The vertical connection structure of the prefabricated shear wall according to any one of claims 1-5, characterized in that: the shear wall components are divided into an inner wall surface (7) and an outer wall surface (8), and the The inner wall surface (7) is a reinforced concrete slab, and the outer wall surface (8) is a sandwich panel including an outer leaf plate (8.1), an insulation layer (8.2) and an inner leaf stress plate (8.3). The leaf force slab (8.3) is a reinforced concrete slab. 8. The vertical connection structure of the prefabricated shear wall according to claim 7, characterized in that: when the upper shear wall member (1) and the lower shear wall member (2) are both exterior wall surfaces, the The groove-shaped horizontal steel frame (4) is embedded within the range of the inner leaf stress plate (8.3); when the upper shear wall component (1) and the lower shear wall component (2) are both inner walls, the The channel-shaped horizontal steel frame (4) is directly embedded in the inner wall. 9. The vertical connection structure of the prefabricated shear wall according to claim 8, characterized in that: the distance between the vertical side plate (4.3) of the channel-shaped horizontal steel frame (4) and the insulation layer (8.2) Not less than 20mm.