CN106760055B - Vertical connection structure of assembled shear wall and construction method thereof - Google Patents

Abstract

A vertical connection structure of a prefabricated shear wall and a construction method thereof. The connection structure comprises shear wall components that are vertically spliced by connecting components, and the inner surface of the joint of the shear wall components is provided with, along the full length of the joint. The notch is facing the interior groove, the upper shear wall components are thrown out with the bottom vertical bars, and the lower shear wall components are thrown out with the top vertical bars, and the connection components include a channel-shaped horizontal steel frame and a sleeve with an opening facing the room. The cylinder and the vertical rib are threadedly connected to the sleeve through the corresponding position. The channel-shaped horizontal steel frames of the two shear wall members that intersect vertically on the same layer are fixedly connected, and the channel-shaped horizontal steel frames are connected to each other to form a steel ring beam. In the present invention, the shear wall components are provided with embedded grooves, the slings are extended into the embedded grooves and the wires are inserted, and the groove-shaped steel frame and the inner wire sleeve are installed in the embedded grooves, so as to realize detachable connection and facilitate the installation of the wall panels. The construction speed of the structure is accelerated, the wet work on site is reduced, and the assembly level of the building structure is improved.

Description

Vertical connection structure of prefabricated shear wall and construction method thereof

technical field

The invention belongs to a building structure connection structure, in particular to a vertical connection structure of an assembled concrete shear wall and a construction method thereof.

Background technique

In recent years, the construction of green, energy-saving and healthy buildings has become a basic national policy in my country. The industrialized engineering construction mode marked by standardization and industrialization requires engineering construction to be mainly prefabricated in factories and coordinated with on-site mechanized assembly.

Among 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 shortcomings: 1. There are hot and cold bridges in the vertical connection part of the shear wall, which reduces the thermal insulation performance of the building; The cost of materials is high, and the acceptance of construction quality is inconvenient; 3. The lap connection of reinforced slurry anchors restrained by the core-pulling hoops and the lapped connection of reinforced slurry anchors formed by metal bellows is the vertical steel bar connection one by one, and there are a number of openings. There are many disadvantages, such as difficult installation, large amount of grouting material, and easy cracking of the protective layer at the opening. Longer steel bars stick out of the wall, which is inconvenient for transportation and construction.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a vertical connection structure of a prefabricated shear wall and a construction method thereof, so as to solve the problems of poor thermal insulation performance, high connection cost and inconvenient construction quality acceptance in the vertical connection structure of the existing shear wall. It is difficult to carry out, install, use a large amount of grouting material and inconvenient transportation and construction.

To achieve the above object, the present invention adopts the following technical solutions:

A vertical connection structure of a prefabricated shear wall comprises upper and lower layers of shear wall components that are vertically spliced by connecting components; The grooves are arranged through the length and the grooves face the interior grooves. At least one row of bottom vertical ribs extending into the embedded grooves is thrown out from the bottom inner side of the upper shear wall member, and at least one row of bottom vertical ribs is thrown out from the bottom inner side of the lower shear wall member. A row of top vertical ribs extending into the embedded groove,

The connecting assembly includes a grooved horizontal steel frame and a sleeve that are adapted to the size of the insert groove and are arranged along the entire length of the seam. The opening of the grooved horizontal steel frame faces the room, including a horizontal upper flange plate, a vertical side plate and horizontal lower flange plate, the end faces of the upper flange plate and the lower flange plate are flush with the inner surface of the shear wall member,

The upper flange plate is provided with upper flange plate perforating holes corresponding to the bottom vertical ribs one-to-one, and the bottom vertical ribs pass through the upper flange plate perforating holes and are tightened by the upper flange plate sleeve. solid.

The lower flange plate is provided with a lower flange plate piercing hole corresponding to the top vertical rib one-to-one, and the top vertical rib passes through the lower flange plate piercing hole and is tightened by the lower flange plate sleeve. solid,

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

The bottom vertical slinging bars and the top vertical slinging bars are the stressed steel bars or pre-embedded steel bars in the shear wall member, and the ejected ends of the bottom vertical slinging bars and the top vertical slinging bars extending into the embedding groove are both. An external thread is provided, the corresponding upper flange plate sleeve and the lower flange plate sleeve are provided with an internal thread suitable for the external thread, and the rib is connected with the flange plate sleeve through a thread.

The inserting grooves are all arranged on the inner side of the bottom of the lower shear wall member, the end faces of the upper flange plate and the lower flange plate are flush with the inner side of the lower shear wall member, and the upper flange of the upper flange plate is flush with the inner side of the lower shear wall member. The side surfaces are flush with the top surface of the lower shear wall member.

The inserting grooves are all arranged on the inner side of the bottom of the upper shear wall member, the end faces of the upper flange plate and the lower flange plate are both flush with the inner side of the upper shear wall member, and the lower flange plate is flush with the inner side of the upper shear wall member. The side surfaces are flush with the bottom surface of the upper shear wall member.

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

The distance between the end of the bottom vertical rib and the end of the top vertical rib is not less than the sum of the axial lengths of the upper flange plate sleeve and the lower flange plate sleeve.

The shear wall component is divided into an inner wall and an outer wall, the inner wall is a reinforced concrete slab, and the outer wall is a sandwich panel comprising an outer leaf plate, a thermal insulation layer and an inner leaf stress plate, and the said inner wall is a sandwich panel. The inner leaf bearing plate is a reinforced concrete plate.

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

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

A construction method for a vertical connection structure of an assembled 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: Assemble the mold of the prefabricated concrete shear wall member, prefabricate by the flat die method, reserve a groove at the design position of the upper layer shear wall member or the lower layer shear wall member, and throw the inner side of the bottom of the upper layer shear wall member. At least one row of bottom vertical slings extending into the embedding grooves are thrown out, and at least one row of top vertical slinging ribs extending into the embedding grooves are thrown out from the top inner side of the lower shear wall member;

Step 3, pouring the concrete of the shear wall member, cleaning the bottom vertical bar and top vertical bar, and threading the outer thread of the ejected end of the bar;

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

Step 5: Design the trough-shaped horizontal steel frame and the sleeve used in conjunction with the rib according to the stress. In the factory, the upper flange plate of the trough-shaped horizontal steel frame is provided with a rib hole for the upper flange plate. The lower flange plate of the steel frame is provided with a lower flange plate through-rib hole; the sleeve includes an upper flange plate sleeve and a lower flange plate sleeve, and the sleeve is processed with an internal thread matching the external thread;

Step 6, demoulding and flushing: remove the molds of the shear wall components, and carry out flushing, inspection, and identification, 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 components to align with the predetermined positions of the lower shear wall components;

Step 8: The worker stands indoors and firstly inserts the horizontal steel frame of the channel into the embedded groove according to the design position. The opening of the horizontal steel frame of the channel is consistent with the opening of the embedded groove and both face the room. Both the plate and the lower flange plate are in close contact with the surface of the insert groove;

Step 9, then pass the top vertical rib through the rib hole of the lower flange plate and fasten it through the lower flange plate sleeve; pass the bottom vertical rib through the rib hole of the upper flange plate and pass the upper flange plate The plate sleeve is tightened and the connection is completed.

Compared with the prior art, the present invention has the following features and beneficial effects:

In the present invention, a groove is formed on the shear wall component, and the length of the reserved rib on the wall panel is short, which is convenient for the transportation of the wall panel; The inner wire sleeve realizes the connection between the upper and lower precast concrete shear wall panels, without the need for traditional grout anchor lap joint construction. The combination of external thread, internal thread and steel frame realizes detachable connection, which is convenient for wall panel installation. The construction speed of the structure is accelerated, the wet work on site is reduced, and the assembly level of the building structure is improved.

The invention adopts the channel-shaped steel frame to connect the shear wall vertically, 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 to each other, a steel ring beam structure is formed as a whole, which improves the integrity and earthquake resistance of the structure.

The invention solves the problem of the cold and hot bridge at the vertical connection node of the precast 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 leaf plate on the inner side, which cuts off the cold bridge at the connection node and improves the energy efficiency of buildings.

Description of drawings

The present invention will be described in further detail below with reference to the accompanying drawings.

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

FIG. 2 is a schematic view of the structural disassembly of the vertical connection of the upper and lower shear wall components 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 components 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 components 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 components 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 components 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 components in the third embodiment.

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

Reference numerals: 1-upper layer shear wall member, 1.1-bottom vertical reinforcement, 2-lower shear wall member, 2.1-top vertical reinforcement, 3-inlay groove, 4-channel 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, 8-outer wall, 8.1-outer leaf plate, 8.2-insulation layer, 8.3-inner leaf bearing plate, 9-steel ring beam.

Detailed ways

Embodiment 1 Referring to Figures 1-4, a vertical connection structure of a prefabricated shear wall includes upper and lower layers of shear wall components that are vertically spliced by connecting components, and upper and lower layers of shear wall components. The inner surface of the seam is provided with a slot 3 along the length of the seam, and the notch is facing the room. The bottom inner side of the upper shear wall member 1 is thrown out with at least two rows of bottoms extending into the slot 3 vertically. Ribs 1.1, at least two rows of top vertical ribs 2.1 extending into the embedding grooves 3 are thrown out from the top inner side of the lower shear wall member 2. In this embodiment, there are two rows of bottom vertical rib 1.1 and top vertical rib 2.1 that are aligned up and down. The bottom vertical throwing bars 1.1 and the top vertical throwing bars 2.1 are the internal stressed steel bars or pre-embedded steel bars of the shear wall components.

The connecting assembly includes a grooved horizontal steel frame 4 and a sleeve that are adapted to the size of the insert groove and are arranged along the entire length of the seam. The opening of the grooved horizontal steel frame 4 faces the room, including a horizontal upper 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 are flush with the inner surface of the shear wall member.

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

The lower flange plate 4.2 is provided with a lower flange plate piercing hole 4.21 corresponding to the top vertical rib 2.1 one-to-one, and the top vertical rib 2.1 passes through the lower flange plate rib hole 4.21 and passes through the lower flange plate. The edge plate sleeve 6 is fastened.

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

The ejected ends of the bottom vertical rib 1.1 and the top vertical rib 2.1 extending into the embedding groove 3 are provided with external threads, and the corresponding upper flange plate sleeve 5 and lower flange plate sleeve 6 are opened inside. There are internal threads adapted to the external threads, and the rib is connected with the flange plate sleeve through threads.

In this embodiment, the inserting grooves 3 are all 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 both flat with the inner side 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.

Embodiment 2 Referring to Figs. 1 and 5-7, the difference from Embodiment 1 is that the inserting grooves 3 are all arranged 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 The end faces of the flange plates 4.2 are flush with the inner side 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 member in the present invention is divided into an inner wall 7 and an outer wall 8, the inner wall 7 is a reinforced concrete slab, and the outer wall 8 is composed of an outer blade 8.1, a thermal insulation layer 8.2 and The sandwich panel of 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 outer walls, so the groove-shaped horizontal steel frame 4 is embedded within the range of the inner leaf bearing plate 8.3, and the groove-shaped horizontal The distance between the vertical side plate 4.3 of the steel frame 4 and the thermal insulation layer 8.2 is not less than 20mm. At this time, the thermal insulation layer is continuous at the seam and is not affected by the thermal bridge.

The third embodiment is shown in Figures 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 inner walls, and the channel-shaped horizontal steel frame 4 is directly embedded in the inner wall. face.

In the present invention, the channel-shaped horizontal steel frame 4 can be shaped steel, and the angle between the upper flange plate 4.1, the lower flange plate 4.2 and the side plate 4.3 is not less than 90 degrees, not more than 120 degrees, generally The actual processing is direct vertical welding.

The cross-sectional size of the insert groove 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 plate sleeve 5 and the lower flange plate sleeve 6 to ensure that the construction can be It is convenient for the worker to put the sleeve on the rib.

Referring to Figure 1-10, a construction method for the vertical connection structure of prefabricated shear walls, 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: Assemble the mould of the precast concrete shear wall member, use the flat mould method to prefabricate, reserve the slot 3 at the design position of the upper shear wall member 1 or the lower shear wall member 2, and the upper shear wall member At least one row of bottom vertical ribs 1.1 extending into the embedding groove 3 is thrown out from the bottom inside, and at least one row of top vertical ribs 2.1 extending into the embedding groove 3 is thrown out from the top inner side of the lower shear wall member;

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

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

Step 5: Design the grooved horizontal steel frame and the sleeve to be used in conjunction with the rib according to the stress. In the factory, the upper flange plate 4.1 of the grooved horizontal steel frame is provided with the upper flange plate through holes 4.11. The lower flange plate 4.2 of the profiled horizontal steel frame is provided with a lower flange plate through-rib hole 4.21; the sleeve includes an upper flange plate sleeve 5 and a lower flange plate sleeve 6, and the inner part of the sleeve matched with the external thread is processed. thread;

Step 6, demoulding and flushing: remove the molds of the shear wall components, and carry out flushing, inspection, and identification, 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 the predetermined position of the lower shear wall member 2 to align;

Step 8: The worker stands indoors and firstly inserts the grooved horizontal steel frame 4 into the embedded groove 3 according to the design position. The opening of the grooved horizontal steel frame 4 is consistent with the opening of the embedded groove 3 and both face the room. The upper part of the grooved horizontal steel frame 4 The flange plate 4.1, the side plate 4.3 and the lower flange plate 4.2 are in close contact with the surface of the insert groove 3;

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

Claims (6)

1. The utility model provides a vertical connection structure of assembled shear force wall, includes upper and lower two-layer shear force wall component through the vertical concatenation of coupling assembling, its characterized in that: the inner side surface of the joint of the upper layer shear wall component and the lower layer shear wall component is provided with an embedded groove (3) which is arranged along the through length of the joint and the notch of which faces indoors, the inner side of the bottom of the upper layer shear wall component (1) is thrown with at least one row of bottom vertical throwing ribs (1.1) which extend into the embedded groove (3), the inner side of the top of the lower layer shear wall component (2) is thrown with at least one row of top vertical throwing ribs (2.1) which extend into the embedded groove (3),

the connecting assembly comprises a groove-shaped horizontal steel frame (4) and a sleeve, the groove-shaped horizontal steel frame (4) is matched with the size of the caulking groove and is arranged along the whole length of the spliced seam, the opening of the groove-shaped horizontal steel frame (4) faces indoors and comprises a horizontal upper flange plate (4.1), a vertical side plate (4.3) and a horizontal lower flange plate (4.2), the end surfaces of the upper flange plate (4.1) and the lower flange plate (4.2) are flush with the inner surface of the shear wall component,

the upper flange plate (4.1) is provided with upper flange plate rib penetrating holes (4.11) which are in one-to-one correspondence with the bottom vertical flail bars (1.1), and the bottom vertical flail bars (1.1) penetrate through the upper flange plate rib penetrating holes (4.11) and are fastened through the upper flange plate sleeve (5);

the lower flange plate (4.2) is provided with lower flange plate rib penetrating holes (4.21) which are in one-to-one correspondence with the top vertical flail bars (2.1), the top vertical flail bars (2.1) penetrate through the lower flange plate rib penetrating holes (4.21) and are fastened through a lower flange plate sleeve (6),

the groove-shaped horizontal steel frames of the two shear wall components which are vertically intersected in the same layer are fixedly connected, the groove-shaped horizontal steel frames are mutually connected to form a steel ring beam (9),

the bottom vertical throwing rib (1.1) and the top vertical throwing rib (2.1) are stress steel bars or embedded steel bars in the shear wall component, the throwing ends of the bottom vertical throwing rib (1.1) and the top vertical throwing rib (2.1) extending into the caulking groove (3) are respectively provided with an external thread, the corresponding upper flange plate sleeve (5) and the lower flange plate sleeve (6) are internally provided with an internal thread matched with the external thread, the throwing ribs are connected with the flange plate sleeves through threads,

the distance between the end of the bottom vertical throwing rib (1.1) and the end of the top vertical throwing rib (2.1) is not less than the sum of the axial lengths of the upper flange plate sleeve (5) and the lower flange plate sleeve (6),

the shear wall component comprises an inner wall surface (7) and an outer wall surface (8), the inner wall surface (7) is a reinforced concrete slab, the outer wall surface (8) is a sandwich plate comprising an outer leaf plate (8.1), a heat insulation layer (8.2) and an inner leaf stress plate (8.3), the inner leaf stress plate (8.3) is a reinforced concrete slab,

the distance between a vertical side plate (4.3) of the groove type horizontal steel frame (4) and the heat insulation layer (8.2) is not less than 20 mm.

2. The fabricated shear wall vertical connection structure of claim 1, wherein: the caulking groove (3) are all arranged on the inner side of the top of the lower shear wall component (2), the end faces of the upper flange plate (4.1) and the lower flange plate (4.2) are flush with the inner side face of the lower shear wall component (2), and the upper side surface of the upper flange plate (4.1) is flush with the top surface of the lower shear wall component (2).

3. The fabricated shear wall vertical connection structure of claim 1, wherein: the caulking grooves (3) are all arranged on the inner side of the bottom of the upper-layer shear wall component (1), the end faces of the upper flange plate (4.1) and the lower flange plate (4.2) are flush with the inner side face of the upper-layer shear wall component (1), and the lower side surface of the lower flange plate (4.2) is flush with the bottom surface of the upper-layer shear wall component (1).

4. The fabricated shear wall vertical connection structure of claim 1, wherein: the horizontal steel frame of cell type (4) is shaped steel, the contained angle between upper flange board (4.1) and lower flange board (4.2) and curb plate (4.3) is not less than 90 degrees, is not more than 120 degrees.

5. The fabricated shear wall vertical connection structure of claim 1, wherein: when the upper-layer shear wall component (1) and the lower-layer shear wall component (2) are both outer wall surfaces, the groove-shaped horizontal steel frame (4) is embedded in the range (8.3) of the inner blade stress plate; when the upper-layer shear wall component (1) and the lower-layer shear wall component (2) are both inner wall surfaces, the groove-shaped horizontal steel frame (4) is directly embedded into the inner wall surfaces.

6. A construction method of the fabricated shear wall vertical connection structure according to any one of claims 1 to 5, characterized by comprising the following construction steps:

designing and splitting shear wall components according to structural loads, and designing components of vertical connection structures of all shear walls;

assembling a die of a precast concrete shear wall component, prefabricating by adopting a flat die method, reserving an embedded groove (3) at the design position of an upper layer shear wall component (1) or a lower layer shear wall component (2), throwing at least one row of bottom vertical throwing ribs (1.1) extending into the embedded groove (3) from the inner side of the bottom of the upper layer shear wall component, and throwing at least one row of top vertical throwing ribs (2.1) extending into the embedded groove (3) from the inner side of the top of the lower layer shear wall component;

pouring concrete of the shear wall member, cleaning a bottom vertical throwing rib (1.1) and a top vertical throwing rib (2.1), and sleeving external threads at the throwing end of the throwing ribs;

maintaining the shear wall component, and performing anti-corrosion treatment on the throwing bars by using anti-corrosive paint;

designing a groove-shaped horizontal steel frame and a sleeve matched with a swing rib for use according to stress, and arranging an upper flange plate rib penetrating hole (4.11) on an upper flange plate (4.1) of the groove-shaped horizontal steel frame and a lower flange plate rib penetrating hole (4.21) on a lower flange plate (4.2) of the groove-shaped horizontal steel frame in a factory; the sleeve comprises an upper flange plate sleeve (5) and a lower flange plate sleeve (6), and an internal thread matched with the external thread is processed in the sleeve;

step six, demolding and washing: dismantling the die of the shear wall components, washing, inspecting and marking, then sequentially transporting all the shear wall components to the site according to a transportation scheme,

step seven, hoisting construction: hoisting the upper-layer shear wall member (1) to align to a preset position of the lower-layer shear wall member (2) according to a hoisting scheme;

step eight, a worker stands indoors and firstly embeds the groove-shaped horizontal steel frame (4) into the caulking groove (3) according to a designed position, the opening of the groove-shaped horizontal steel frame (4) is consistent with the opening of the caulking groove (3) and faces indoors, and the upper flange plate (4.1), the side plate (4.3) and the lower flange plate (4.2) of the groove-shaped horizontal steel frame (4) are tightly attached to the surface of the caulking groove (3);

step nine, enabling the top vertical throwing ribs (2.1) to penetrate through the lower flange plate rib penetrating holes (4.21) and be fastened through the lower flange plate sleeve (6); and (3) penetrating the bottom vertical throwing rib (1.1) through the upper flange plate rib penetrating hole (4.11) and fastening through the upper flange plate sleeve (5) to finish connection.

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