CN218933507U - Assembled light steel wire mesh frame mortar-perlite-polyphenyl shear wall with window holes - Google Patents

Abstract

The utility model discloses an assembled light steel wire grid mortar-perlite-polyphenyl shear wall with window holes, and relates to the technical field of assembled concrete building structure engineering. Including steel mesh mortar-perlite surface layer, which is composed of steel mesh mortar layer and perlite fireproof layer; load-bearing steel wire mesh frame, composed of inner and outer steel mesh spot-welded horizontal webs and oblique webs; C-shaped steel is welded; light steel composite truss is composed of steel wire mesh mortar layer strip outer chord, light steel frame vertical C-shaped steel inner chord, countersunk head broken bridge long self-tapping nails; window frame self-tapping nail aggregates The combined connection structure is the connection node between the reinforced mortar strip and the light steel frame of the concrete shear wall window frame; the combined connection structure of the prefabricated shear wall refers to the assembly of the upper and lower concrete shear wall panels with a steel sleeve , the left and right shear walls are assembled with post-cast concrete strips. The utility model has the advantages of small thickness, light weight, good fire resistance, waterproof and heat insulation performance.

Description

Prefabricated light steel wire grid mortar-perlite-polystyrene shear wall with window holes

technical field

The utility model belongs to the technical field of prefabricated concrete building structure engineering, and more specifically relates to a prefabricated light steel composite truss with window holes supporting a steel wire grid mortar-perlite-polyphenyl composite shear wall.

Background technique

At present, prefabricated concrete structures are widely used in multi- and high-rise residential buildings, but the innovation and development of matching thermal insulation and energy-saving prefabricated components lag behind. The problem of low level still exists. Therefore, it is a major demand for the development of national prefabricated green buildings to develop a multi-functional integrated prefabricated shear wall exterior wall system, and to develop a prefabricated composite exterior wall system that integrates decoration, fire protection, waterproof, heat insulation, and weather resistance.

Bottleneck problems in the existing technology: 1. The traditional external wall insulation is easy to fall off under the action of wind load and long-term load, and its weather resistance is poor. The insulation mortar falls off and the bonded inorganic light aggregate fireproof insulation board falls off; once the outer insulation layer of the outer wall falls off, it will fall from a large area together with the external decorative surface layer, which will easily cause injuries to nearby pedestrians or damage to objects ;2. The deformation of the ultra-thick insulation layer under long-term load is difficult to control. The use of the traditional external insulation layer is limited by the height of the building. Since the external insulation of the external wall is set along the overall height of the external wall of the building, and the elastic modulus of the insulation board is low, the deformation is large , the gravity load of the mortar insulation layer cannot be completely transmitted to the main structure of this layer, so as the height of the structure increases, the cumulative effect of gravity load will occur, which is not conducive to the overall stability of the external insulation layer. The application height of the wall insulation system is strictly limited; 3. The structure of the window opening of the traditional external thermal insulation wall is poor in integrity, and the external thermal insulation structure is easy to crack and peel off at the window opening, and the weather resistance and thermal insulation performance are difficult to meet the needs of use; 4. The traditional external thermal insulation wall Most of the external insulation structures have no fire protection layer, and organic insulation boards such as polystyrene, polyurethane, and foam rubber have poor fire resistance, which has led to many fire accidents in the external insulation system of external walls; 5. The thermal insulation structure and the base wall are mostly anchored and connected by expansion plastic anchor bolts and thermal insulation plastic nails. The non-metallic connectors have low tensile and shear strength and poor weather resistance, which cannot guarantee the effective connection between the thermal insulation structure and the wallboard; 6. Traditional The joints and openings of the external insulation boards are difficult to deal with, and the problem of water leakage at the joints is more serious, which can easily cause the insulation structure to loosen and fall off.

Utility model content

The technical problem to be solved by the utility model is to provide a prefabricated light steel composite truss with window holes supporting a steel wire grid mortar-perlite-polyphenyl composite shear wall, which is suitable for ultra-low energy consumption houses with prefabricated concrete shear wall structures The outer wall with window openings is small in thickness, light in weight, and has good fire resistance, waterproof and heat insulation performance.

In order to solve the problems of the technologies described above, the technical solution adopted by the utility model is:

Prefabricated light steel composite truss with window holes supporting steel wire grid mortar-perlite-polystyrene composite shear wall includes:

Prefabricated concrete shear walls are composed of concrete shear walls, window openings and coupling beams on the upper part of window openings; shear wall distribution reinforcement, shear wall vertical connection reinforcement, tie reinforcement, and coupling beam reinforcement cage and coupling beam vertical connection The steel bars are bound to form a shear wall reinforcement cage. The lower part of the vertical connection reinforcement of the shear wall is connected with a grouting sleeve. The part out is connected with the prefabricated concrete floor and the grouting sleeve on the upper floor;

The light steel frame is arranged on the outside of the distributed reinforcement of the shear wall. It is welded by the vertical C-shaped steel of the light steel frame and the horizontal C-shaped steel of the light steel frame. The horizontal and vertical C-shaped steel of the window frame edge is welded Form the light steel sash of the window frame; the web plate of the light steel sash is provided with light steel sash self-tapping nail holes, and the flange is provided with the groove of the light steel sash flange;

Inner leaf inner steel wire mesh mortar layer: It is composed of inner leaf mortar layer steel wire mesh and inner leaf mortar connecting layer, the flange of U-shaped steel wire is spot-welded with the steel wire mesh of inner leaf mortar layer, and the web bar of U-shaped steel wire is welded with light steel frame ;

The steel wire grid mortar-perlite-polystyrene insulation structure is composed of polystyrene insulation board with polystyrene insulation board dovetail groove, perlite board, outer leaf mortar layer and outer leaf mortar layer steel wire mesh, polystyrene insulation board The dovetail groove is mechanically engaged with the mortar connection layer of the inner leaf;

The load-bearing steel wire frame is composed of the outer leaf mortar layer steel wire mesh, the inner leaf mortar layer steel wire mesh spot-welded steel wire mesh frame horizontal belly wire and the steel wire mesh frame oblique belly wire, the steel wire mesh frame horizontal belly wire and the steel wire mesh frame oblique belly wire After penetrating the perlite board and polystyrene insulation board, it extends into the concrete of the shear wall, so as to realize the connection between the steel wire grid mortar-perlite-polystyrene insulation structure and the concrete shear wall;

Light steel composite truss, the outer chord of the steel mesh mortar layer strip composed of the outer mortar surface layer and the outer leaf mortar layer steel mesh, the vertical C-shaped steel of the light steel frame and the inner chord of the horizontal C-shaped steel of the light steel frame, The web bar of the horizontal countersunk head broken bridge long self-tapping screw connector and the chord rod of the combined countersunk head broken bridge long self-tapping screw connector; the broken bridge self-tapping screw connector is self-tapping after drilling through the perlite board polystyrene insulation board Connect the vertical C-shaped steel of the light steel frame and the horizontal C-shaped steel of the light steel frame;

Window hole self-tapping screw block connection structure, window frame mortar strip with built-in window frame mortar strip steel wire mesh, window frame mortar strip steel frame mesh and outer leaf mortar layer steel mesh and inner leaf mortar layer steel mesh overlap, in the window Weld the mortar strip force-transmission steel plate on the steel wire mesh of the frame mortar strip, and the mortar strip force transmission steel plate is connected with the C-shaped steel of the light steel frame of the window frame, and put the self-tapping nail holes in the groove of the window frame mortar strip The connecting steel plate is connected by self-tapping nails through the connecting steel plate and then self-tapping to connect the mortar strip to the force-transmitting steel plate and the C-shaped steel flange of the light steel frame of the window frame; use high-tech performance mortar to smooth the groove of the mortar strip on the window frame , forming a self-tapping nail cluster node;

Combined connection structure, including the shear wall connection structure composed of the shear wall distribution reinforcement in the upper and lower shear walls, the grouting material in the grouting sleeve, and the concrete post-casting strips of the left and right shear walls; it also includes The connection structure of the insulation layer composed of cement-based mortar applied to the tongue and groove of the polystyrene insulation board and the connection structure of the steel wire mesh of the outer leaf mortar layer of the outer leaf steel wire mesh cement mortar layer connected by the upper, lower, left and right wall panels; The steel wire mesh cement mortar layer of the outer leaf is wiped strips for the connection structure of the wallboard, bottom, left and right outer steel wire mesh mortar layers; 75mm wide outer mortar surface layer is reserved for the prefabricated wallboard, bottom, left and right ends After the wall panel is hoisted and positioned, the connection position of the outer steel wire mesh mortar layer of the upper, lower or left and right adjacent wall panels is 150mm wide. Performance insulation mortar; the concrete post-casting strips are assembled and connected structures of left and right adjacent wall panels, and horizontally distributed steel bars protrude from the left and right ends of the wall panels by 280mm to overlap with adjacent wall panels and bind vertical structural bars and tie bars After pouring the concrete and pouring strips, the assembly connection of the left and right wall panels is completed.

Preferably, the concrete shear wall is a prefabricated reinforced concrete shear wall; the distribution reinforcement of the shear wall adopts double rows of reinforcement, the diameter of the horizontal distribution reinforcement is 10mm, the spacing is 200mm, and the diameter of the vertical distribution reinforcement is 10mm. The spacing is 200mm, the net protective layer thickness is 20mm, and the tie bars with a diameter of 6mm are arranged at an interval of 400mm; grouting sleeves are used for assembly and connection, and 16 grouting sleeves are set at the bottom of the wallboard at a spacing of 600. The 16 symmetrically arranged diameters are The 16mm steel bar is used as the vertical connecting steel bar of the shear wall and the vertical connecting steel bar of the connecting beam of the upper and lower shear walls; The top of the vertically connected reinforcement of the beam protrudes from the wall panel by 240mm and is connected with the prefabricated concrete floor and the upper wall panel; within the scope of the grouting sleeve at the bottom of the wall panel and the upper 300mm, the total densification height is 500mm, and the densification layout of the shear wall distributes the reinforcement Horizontally distributed steel bars with a diameter of 10mm and a spacing of 100mm, the horizontally distributed steel bars protrude from the left and right ends of the wallboard by 280mm to overlap with the adjacent wallboards, and then pour concrete and pour strips.

Preferably, the connecting beam is a connection structure at the top of the window opening of the concrete shear wall, its length is equal to the width of the window opening, the section height is the distance from the upper edge of the window opening to the concrete top of the wall panel, and the section width is equal to the thickness of the wall body; Configure 6 longitudinal steel bars with a diameter of 10mm and stirrups with a diameter of 8mm and a spacing of 150mm; The grouting sleeve connection of the upper wall panel; the bottom of the connecting beam, that is, the upper edge of the window opening is equipped with a horizontal C-shaped steel of light steel sash for the window frame, and the connecting beam is arranged with two sections of light steel sash vertically C-shaped equidistantly along the length direction steel.

Preferably, the vertical C-shaped steel of the light steel sash and the transverse C-shaped steel of the light steel sash are welded by C-shaped steel with vertical and horizontal spacings not greater than 800, and the light steel sash is welded with U-shaped steel wires with a diameter of 2mm are spot-welded at the 10mm net distance of the steel wire mesh of the inner leaf mortar layer to connect the steel wire mesh and the light steel frame, and the vertical C-shaped steel of the light steel frame is horizontally distributed with the steel wire mesh of the inner leaf mortar layer Steel wire spot welding, light steel frame horizontal C-shaped steel and inner leaf mortar layer steel wire mesh vertically distributed steel wire spot welding, the distance between horizontal and vertical spot welding is not more than 200mm; the light steel frame section is 70mm high, 50mm wide, plate The thickness is not less than 2mm, and the light steel frame has a width of 140mm and a height of 60mm. The flange groove of the light steel frame forms a protruding steel section with a clear distance of 140mm, a height of 60mm, and a width of 60mm; the vertical C-shaped steel of the light steel frame The protruding steel section is anchored into the concrete of the shear wall at a position of 10mm between the horizontal and vertical distribution steel bars of the shear wall and the outer distribution steel bars, and the net distance between the steel wire mesh of the inner leaf mortar layer and the outer distribution steel bars of the shear wall is 20mm After pouring the shear wall concrete, the 10mm high section of the light steel frame with protruding steel section is embedded in the shear wall concrete for 10mm, and the protruding steel section is anchored in the shear wall concrete for 60mm; in order to facilitate self-tapping between self-tapping nail connections For the C-shaped steel web of the light steel frame, round holes smaller than the diameter of self-tapping screws are opened on the webs of the vertical C-shaped steel of the light steel frame and the horizontal C-shaped steel of the light steel frame, so that the self-tapping screws can penetrate Pass.

Preferably, the light steel sash of the window frame is a light steel sash arranged around the window opening of the concrete shear wall, the vertical C-shaped steel of the light steel sash is arranged along the left and right edges of the window frame, and the vertical C-shaped steel of the light steel sash is arranged along the upper, Light steel sash horizontal C-shaped steel is arranged on the lower edge, the outer surface of the light steel sash of the window frame near the drive side is flush with the concrete on the surface of the window frame, wood blocks are pasted on the inner side of the flange, and self-tapping screws pass through the joints on the connecting steel plate Self-tapping nail holes, self-tapping connection to the light steel sash flange of the window frame, self-tapping nails drilled into the wood block inside the flange.

Preferably, the inner leaf mortar layer steel wire mesh of the inner leaf mortar connection layer is a mortar layer of polystyrene insulation board dovetail groove and shear wall concrete, and the net distance between the inner leaf mortar layer steel wire mesh and the polystyrene insulation board with dovetail groove is 10mm, use a 14mm thick mortar with a strength not lower than C20 to smooth the gap between the steel wire mesh of the inner leaf mortar layer and the dovetail groove of the polystyrene insulation board; the U-shaped steel wire is the connection structure between the steel wire mesh of the inner leaf mortar layer and the light steel frame , the bent flange is spot-welded with the steel wire mesh steel wire of the inner leaf mortar layer, the web bar is welded with the vertical C-shaped steel of the light steel frame and the horizontal C-shaped steel of the light steel frame; the polystyrene insulation board is the inner and inner The polystyrene insulation board with dovetail grooves at the joint of the leaf mortar connection layer; the perlite board is the fireproof layer of the wallboard, and its thickness is 25mm; the outer leaf mortar layer is 25mm thick with the outer strength of the wallboard greater than or equal to C20 The outer leaf mortar layer has a built-in outer leaf mortar layer steel wire mesh with a diameter of 2mm and a spacing of 50mm, and the mortar net protective layer thickness of the outer leaf mortar layer steel mesh is 10mm.

Preferably, the window frame mortar strip is a window frame edge-sealing concrete mortar strip connecting the inner leaf mortar connection layer and the outer leaf mortar layer, its thickness is 50mm, and the width is from the outer leaf mortar layer to the outer surface of the concrete shear wall The distance between the window frames and mortar strips with a diameter of 4mm and a spacing of 200mm is arranged inside, and the window frame mortar strips and steel mesh are embedded in the inner leaf mortar connection layer and the outer leaf mortar layer 100mm, and the inner leaf mortar layer steel wire mesh and the outer leaf mortar layer The steel mesh is lapped and bound; the 220mm long and 80mm wide mortar strip force-transmitting steel plate is welded to the two distributed reinforcement bars of the window frame mortar strip steel mesh along the direction outside the plane of the shear wall, and the outside of the steel plate is parallel to the plane of the shear wall The distribution of steel bars is welded to strengthen the anchoring performance of the steel plate and the window frame mortar strip. The window frame mortar strip at the force transmission steel plate of the mortar strip has grooves, and the mortar strip force transmission steel plate is docked with the light steel frame of the window frame. Use self-tapping nails to pass through the self-tapping holes of the connecting steel plates, self-tapping drill into the mortar strip force-transmission steel plate and the light steel frame of the window frame, and finally use high-performance mortar to make the mortar strip concave on the window frame mortar strip at the force-transmission steel plate Groove filled.

Preferably, the horizontal countersunk head broken bridge long self-tapping screw connector and the combined countersunk head broken bridge long self-tapping screw connector are the webs of the light steel composite truss, which are connected to the outer chord of the 25mm thick steel wire mesh mortar layer strip The connecting piece with the inner chord of the light steel frame; the horizontal countersunk head broken bridge long self-tapping screw connecting piece and the combined countersunk head broken bridge long self-tapping screw connecting piece sink into the countersunk head fiber composite connecting piece with a size greater than or equal to 50mm and drill through The perlite-polystyrene insulation layer is self-tapping and connected to the light steel frame; the countersunk fiber composite connector is an outer square plate of 3mmX60mmX60mm, a setback 4mmX46mmX46mm square plate, a hollow round rod with an outer diameter of 14mm and an inner diameter of 10mm and a length of 50mm in the center, The hollow round rod with an outer diameter of 14mm and an inner diameter of 6mm and a length of 20mm is a connecting piece formed at one time; the angle between the square plate and the hollow round rod of the horizontal countersunk broken bridge long self-tapping screw connector is 90 degrees, and the combination Countersunk head broken bridge long self-tapping screw connector The angle between the rectangular plate of the countersunk head fiber composite connector and the hollow round rod is divided into 90 degrees through the horizontal long self-tapping screw and 45 degrees through the oblique upward long self-tapping screw Two types; the steel self-tapping screw has a cap diameter of 10mm, a nail shaft of 6mm, and a threaded length; the horizontal countersunk head broken bridge long self-tapping screw connector is arranged on the top and bottom of the vertical C-shaped steel of the light steel frame, Combined countersunk head broken bridge long self-tapping screw connectors are arranged in the middle; horizontal countersunk head broken bridge long self-tapping screw connectors are arranged on the horizontal C-shaped steel of the light steel frame grid, and the spacing does not exceed 800mm.

Preferably, the horizontal abdominal wires of the steel wire mesh frame and the oblique abdominal wires of the steel wire mesh frame are supporting steel wires connecting the inner leaf mortar layer steel wire mesh and the outer leaf mortar layer steel wire mesh; the steel wire mesh frame is composed of inner leaf mortar layer steel wires The net and the outer blade mortar layer steel wire mesh are spot welded at a distance of 200mm, and the horizontal abdominal wires of the steel wire grid with a diameter of 2mm and the oblique abdominal wires of the steel wire grid with an upward angle of 45 degrees are formed. The horizontal abdominal wires of the steel wire grid and the oblique The abdominal wire penetrates the 25mm thick perlite slab and the 24mm thick inner leaf mortar connection layer, which is bonded with the 200mm thick polystyrene insulation board with dovetail grooves, and then extends into the shear wall concrete for a horizontal projection of 60mm.

The method of prefabricated light steel composite truss with window holes supporting steel wire grid mortar-perlite-polystyrene composite shear wall includes the following contents:

First, prepare the thermal insulation shear wall, the process is as follows:

The first step, the factory processes and welds the vertical and horizontal C-shaped steel of the light steel frame, binds the shear wall reinforcement cage and the connecting beam reinforcement cage, installs the grouting sleeve, purchases the polystyrene insulation board and the perlite board, and installs them Cutting and assembling into the required size; preparation of internal and external steel wire mesh, steel wire mesh frame belly wire and window frame mortar strip steel mesh welded with force-transmitting steel plates, prefabricated horizontal countersunk broken bridge long self-tapping nail connectors and combined countersunk broken bridge Long self-tapping screw connector;

The second step is to install and position the light steel frame on the steel cage of the shear wall, connect the inner steel wire mesh to the light steel frame through U-shaped steel wires, and use engineering plastics and other pads to insulate the light steel frame and polystyrene The thickness of the mortar layer in the surface interval of the dovetail groove of the board and the positioning of the polystyrene insulation board, the perlite board and the outer steel wire mesh; the window frame mortar strip steel mesh and the inner and outer leaf steel mesh are bound, and the mortar strip welded on it transmits force The steel plate is aligned with the light steel frame of the window frame;

The third step is to penetrate the horizontal abdominal wire of the steel wire grid and the oblique abdominal wire of the steel wire grid in turn through the perlite board and the polystyrene insulation board, and spot weld the two ends of the abdominal wire of the steel wire grid with the inner and outer steel wire mesh to form a steel wire mesh and extend into the shear wall for a certain anchoring distance; the long self-tapping of the horizontal broken bridge self-tapping screw connector and the combined broken bridge self-tapping screw connector penetrates the perlite board and the polystyrene insulation board in sequence, and the self-tapping connection is light steel frame, and extend into the interior of the shear wall for a certain anchorage distance;

The fourth step is to pour the inner and outer steel wire mesh mortar surfaces and the window frame mortar strips with grooves, and maintain them; put the connecting steel plates in the grooves of the window frame mortar strips, and the surface and the mortar strips transmit force The steel plate and the light steel frame of the window frame are bonded to the side flange of the window hole, and self-tapping nails are used to pass through the self-tapping nail holes of the connecting steel plate, and the self-tapping connection mortar strips are attached to the force-transmitting steel plate and the light steel frame flange of the window frame; performance mortar is used Smooth out the grooves of the window frame mortar strips;

The fifth step is to pour the shear wall concrete with the steel wire grid mortar-perlite-polystyrene insulation structure as the base form, and maintain it;

Then assemble the prepared thermal insulation shear wall. The construction process is as follows:

Step 6: Install the prefabricated concrete floor slab on the upper part of the concrete shear wall of the lower floor, and lay a mortar cushion; lap the horizontal steel bars of the left and right prefabricated shear walls, bind the vertical structural steel bars and tie bars, and , The vertical concrete post-casting strip of the right adjacent wall panel has an inner supporting formwork, and the outer polystyrene insulation board is also used as a formwork;

Step 7: Connect the lower shear wall and the longitudinal steel bar at the top of the connecting beam to the grouting sleeve at the bottom of the upper shear wall, and connect the polystyrene insulation board grooves of the upper and lower wall panels and the back-applied mortar strips. Fill the grouting material into the sleeve through the reserved holes, bind the additional steel wire mesh in the horizontal reserved strips, and use high-performance thermal insulation mortar to smooth the horizontal mortar strips between the upper and lower wall panels; The building concrete in the strip is poured backward, the additional steel wire mesh is bound in the vertical reserved strip, and the vertical mortar strip between the left and right wall panels is smoothed with high-performance thermal insulation mortar;

Step 8: Remove the formwork to form the combined connection structure of the upper and lower wall panels with mortar strips and grouting sleeves, and the combined connection structure of the left and right wall panels with mortar strips and post-cast concrete, and paint the wall panels with waterproof paint For the mortar surface of the outer leaves, use interior wall paint to paint the internal reinforced concrete shear walls of the wall panels.

The beneficial effects produced by adopting the above-mentioned technical scheme are:

1. Steel mesh mortar-perlite surface layer solves the shortcomings of poor fire resistance of traditional external thermal insulation walls. Perlite board has the advantages of good fire resistance and heat insulation performance, which can effectively improve the fire resistance of external wall thermal insulation systems and reduce Fire accident risk of prefabricated thermal insulation shear wall exterior wall system. The high-performance mortar layer has good structure, waterproof and weather resistance.

2. The structure of light steel composite truss and load-bearing steel wire grid can effectively resist the downward shear deformation of the mortar layer under long-term load, and can control this shear deformation in each floor and not transmit downward, which solves the problem of ultra-thick insulation The technical bottleneck problem that the deformation of the layer under long-term load is difficult to control. The light steel composite truss and the horizontal tie bars in the load-bearing steel wire grid can effectively resist the peeling effect perpendicular to the wall panel plane, such as wind suction, and prevent the insulation layer from peeling off due to the separation from the wall panel surface. The broken bridge self-tapping screw connector has high strength, good heat insulation performance, and easy installation, which avoids the cold bridge problem of traditional metal connectors, and has significantly improved knot strength compared with traditional non-metallic connectors. There is a reliable anchorage capability between the light steel frame and the reinforced concrete shear wall, which enhances the integrity of the external thermal insulation system and the shear wall.

3. The connection nodes of self-tapping nail clusters mainly play the role of shear resistance and tensile resistance, so as to resist the self-weight of the external insulation structure and the peeling effect caused by wind suction. It can effectively resist the downward shear deformation of the mortar layer around the window frame under long-term load, and can control this shear deformation in this layer and not transmit it downward. The window frame mortar strips and self-tapping nail cluster connection nodes strengthen the connection between the external wall panel thermal insulation structure and the concrete shear wall at the window opening, and also improve the sealing and thermal insulation performance of the window opening, and improve the weather resistance of the thermal insulation structure.

4. The post-wiping strip of steel mesh mortar in the combined connection structure enhances the integrity of the wallboard mortar surface, solves the joint connection problem of the traditional insulation board, improves the waterproof performance of the wallboard, and makes the wallboard insulation structure have good performance. weather resistance. The insulation board can be used as a formwork for the post-casting belt, which is convenient for assembly and construction.

Description of drawings

Fig. 1 is the structural representation of shear wall;

Fig. 2 is a schematic sectional view of 1-1 in Fig. 1;

Fig. 3 is a schematic sectional view of 2-2 in Fig. 1;

Fig. 4 is a schematic sectional view of 3-3 in Fig. 1;

Fig. 5 is a schematic sectional view of 4-4 in Fig. 1;

Fig. 6 is a schematic sectional view of 5-5 in Fig. 1;

Fig. 7 is a schematic sectional view of 6-6 in Fig. 1;

Fig. 8 is a schematic sectional view of 7-7 in Fig. 1;

Fig. 9 is a schematic diagram of the connection state and structural section of the combined countersunk head broken bridge long self-tapping screw connector;

Fig. 10 is a schematic cross-sectional view of 1-1 in Fig. 9;

Fig. 11 is a schematic diagram of the connection state and structural section of the long self-tapping screw connector of the horizontal countersunk broken bridge;

Fig. 12 is a schematic diagram of the sectional structure of 2-2 in Fig. 11;

Fig. 13 is a schematic cross-sectional view of the connection state of the horizontal abdominal wire of the steel wire grid and the oblique abdominal wire of the steel wire grid;

Fig. 14 is a schematic sectional view of 3-3 in Fig. 13;

Fig. 15 is a schematic cross-sectional structure diagram of the top and bottom of the window;

Fig. 16 is another view of the top of the window and the cross-sectional structure of the top;

Fig. 17 is a schematic cross-sectional structure diagram of the left and right sides of the window;

Fig. 18 is another view of the cross-sectional structure of the left and right sides of the window;

Fig. 19 is a sectional view of the connection structure of the upper and lower shear walls;

Fig. 20 is another sectional view of the connection structure of the upper and lower shear walls;

Figure 21 is a schematic cross-sectional view of the connection structure of the left and right shear walls;

In the figure: 1. Concrete shear wall; 2. Distribution reinforcement of shear wall; 3. Vertical connection reinforcement of shear wall; 4. Tie reinforcement; 5. Grouting sleeve; 6. Coupling beam; 7. Coupling beam reinforcement Cage; 8. Vertical connecting steel bar of connecting beam; 9. Vertical C-shaped steel of light steel frame; 10. Horizontal C-shaped steel of light steel frame; 11. Light steel frame of window frame; 12. Inner leaf mortar connection layer ;13. Inner leaf mortar layer steel wire mesh; 14. U-shaped steel wire; 15. Polystyrene insulation board; 16. Perlite board; 17. Outer leaf mortar layer; 18. Outer leaf mortar layer steel wire mesh; 19. Window frame mortar Strips; 20. Window frame mortar strip steel wire mesh; 21. Mortar strip force transmission steel plate; 22. Connecting steel plate; 23. Self-tapping nails; Long self-tapping nail connector for countersunk broken bridge; 26. Horizontal abdominal wire of steel wire grid; 27. Oblique abdominal wire of steel wire grid; 28. Wipe strip after cement mortar layer of outer leaf steel wire mesh; 29. Cement-based mortar ; 30. Polystyrene insulation board tongue and groove; 31. Prefabricated concrete floor slab; 32. Shear wall mortar cushion; 33. Grouting material;

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

The utility model proposes an assembled light steel composite truss with window holes supporting steel wire grid mortar-perlite-polystyrene composite shear wall, which is suitable for the outer wall of ultra-low energy consumption houses with window holes in the assembled concrete shear wall structure. Among them, the steel wire grid mortar surface layer-perlite structure is thin in thickness, light in weight, good in fire resistance and heat insulation, and the high-performance mortar layer with a strength grade of not less than M20 has good structure, waterproof and weather resistance. The truss composed of steel wire mesh mortar layer, broken bridge self-tapping screw web, and frame light steel chord can support the weight of mortar, fire protection, and insulation layers outside the shear wall, and effectively limit the downward shear of the mortar layer under long-term load. Cut deformation. The window frame mortar strip is used to strengthen the structure at the window opening, and the window frame mortar strip and the steel wire mesh mortar surface layer of the outer leaf are prefabricated integrally and connected with the concrete shear wall by a self-tapping screw cluster connection structure. The thickness of the polystyrene insulation layer can be selected according to the regional climate conditions of the building to ensure the thermal insulation and heat insulation performance of the external wall.

As shown in Figure 1-21, the main structure of the shear wall in the utility model includes:

Steel mesh mortar-perlite surface layer, each 25mm thick steel mesh mortar layer and perlite fireproof layer, its weight is only 1/2 of the 50mm thick concrete protective layer and has good fire resistance and heat insulation performance, and its strength level is not less than The high-performance mortar layer of M20 has good structure, waterproof and weather resistance.

The load-bearing steel wire mesh frame is composed of outer steel wire mesh, inner steel wire mesh with a spot welding distance of 200*200mm, horizontal abdominal wires with a diameter of 2mm, and oblique upward 45-degree abdominal wires. The horizontal abdominal wires and oblique upward 45-degree abdominal wires penetrate The 25mm thick perlite layer and the 5mm thick cement mortar are bonded to the 200 thick polyphenylene layer with dovetail grooves, and then extend into the shear wall concrete for a horizontal projection of 60mm.

The light steel frame is welded by C-shaped steel with a vertical and horizontal spacing of no more than 800. The C-shaped steel of the light steel frame is 10mm away from the inner steel wire mesh. The steel wire mesh and C-shaped steel are welded together, the vertical C-shaped steel is spot-welded with the horizontally distributed steel wires of the steel mesh, the horizontal C-shaped steel is spot-welded with the vertically distributed steel wires of the steel mesh, and the distance between horizontal and vertical spot welding is not greater than 200mm. Arrange the window frame light steel frame around the window opening to strengthen the mechanical performance of the window frame and strengthen the connection between the external thermal insulation structure of the wall panel at the window opening and the concrete shear wall.

The light steel composite truss is a truss composed of a steel wire mesh mortar layer, a broken bridge self-tapping screw web, and a frame light steel chord. The light steel composite truss is composed of a 25mm thick steel wire mesh mortar layer with an outer The vertical C-shaped steel inner chord, the horizontal web bar of the long self-tapping screw with a diameter of not less than 5mm and the web bar inclined upward at 45 degrees; 50 countersunk head fiber composite connectors, drilled perlite-polystyrene insulation layer, self-tapping connection C-shaped light steel; the light steel composite truss can effectively resist the downward shear deformation of the mortar layer under long-term load, and can This shear deformation control is not propagated down the floors.

The window frame self-tapping nail cluster combination connection structure is the connection node between the reinforced mortar strip of the external thermal insulation structure at the window frame and the light steel frame of the concrete shear wall window frame. The window frame reinforcement mortar strips are equipped with Φ4 steel mesh with a spacing of 200mm, and the steel mesh is welded on the side of the steel mesh close to the window opening of the concrete shear wall, and the mortar strip is connected with the light steel frame C of the shear wall window frame. The outer flange of the shaped steel is connected with steel plate self-tapping screws, so as to connect the window frame mortar strip of the composite thermal insulation exterior wall with the window frame of the concrete shear wall. The self-tapping screw cluster connection node mainly plays the role of shear resistance and tensile resistance, so as to resist the self-weight of the external insulation structure and the peeling effect caused by wind suction.

The prefabricated shear wall composite connection structure refers to the assembly of the upper and lower concrete shear wall panels with steel sleeves, the left and right shear walls are assembled with post-cast concrete strips; the upper, lower and left and right light steel The connection between the composite truss supporting the steel wire mesh mortar-perlite-polystyrene insulation system is the butt joint between the perlite layers, the tongue-and-groove connection between the polystyrene layers, and a gap of 150mm between adjacent two steel mesh mortar layers. Apply the mortar strips, and then attach the reinforced steel mesh to the area of the mortar strips.

The specific structure and connection relationship of each structure are as follows:

Prefabricated concrete shear wall: composed of concrete shear wall 1, window opening and connecting beam 6 on the upper part of the window opening. Shear wall distribution reinforcement 2, shear wall vertical connection reinforcement 3, tie reinforcement 4, coupling beam reinforcement cage 7 and coupling beam vertical connection reinforcement 8 are bound to form a shear wall reinforcement cage, and shear wall vertical connection reinforcement 3 The lower part is connected with a grouting sleeve 5, and the vertical connecting steel bar 3 of the shear wall and the vertical connecting steel bar 8 of the connecting beam are connected with the prefabricated concrete floor 31 and the grouting sleeve 5 on the upper floor by the connection length stretched out at the top of the wallboard. The light steel grid is arranged on the outside of the distribution reinforcement 2 of the shear wall. After the concrete is poured, a prefabricated grouting sleeve concrete shear wall with a light steel grid is formed. Concrete shear wall 1 is a prefabricated reinforced concrete shear wall. The shear wall distribution reinforcement 2 adopts double rows of reinforcement: the horizontal distribution reinforcement is Φ10 with a spacing of 200mm, the vertical distribution reinforcement is Φ10 with a spacing of 200, the net protective layer thickness is 20mm, and the Φ6 tie reinforcement 4 is arranged at an interval of 400mm; grouting sleeves are used The cylinder 5 is assembled and connected, and 16 grouting sleeves 5 are set at the bottom of the wallboard at a distance of 600. 16 symmetrically arranged Φ16 steel bars are used as the vertical connecting steel bar 3 of the upper and lower shear walls and the vertical connecting steel bar 8 of the connecting beam. The vertically distributed reinforcement in the shear wall distribution reinforcement 2 does not protrude from the wall panel, and the longitudinal connection reinforcement 3 of the shear wall and the vertical connection reinforcement 8 of the connecting beam protrude from the wall panel by 240mm to connect with the prefabricated concrete floor 31 and the upper wall panel. Within the range of grouting sleeve 5 at the bottom of the wall panel and its upper 300mm, the total height of densification is 500mm, and the horizontal distribution reinforcement of Φ10@100 of the shear wall distribution reinforcement 2 is densely arranged, and the horizontal distribution reinforcement protrudes 280mm from the left and right ends of the wall panel to the corresponding The strip 34 is poured after pouring concrete after the adjacent wall panels are overlapped.

Light steel sash: It is welded by the vertical C-shaped steel 9 of the light steel sash and the horizontal C-shaped steel 10 of the light steel sash, and the horizontal and vertical C-shaped steel of the window frame is welded to form the light steel sash 11 of the window frame . There are light steel sash self-tapping nail holes on the web plate of the light steel sash, and the flange is provided with light steel sash flange grooves.

Inner leaf inner steel wire mesh mortar layer: composed of inner leaf mortar layer steel wire mesh 13 poured inner leaf mortar connection layer 12, U-shaped steel wire 14 flange and inner leaf mortar layer steel wire mesh 13 spot welded, web bar and light steel frame welded .

Steel wire grid mortar-perlite-polystyrene insulation structure: steel wire mesh composed of polystyrene insulation board 15 with polystyrene insulation board dovetail groove, perlite board 16, outer leaf mortar layer 17 and outer leaf mortar layer steel wire mesh 18 The mortar surface layer is composed of polystyrene insulation board dovetail grooves and the inner leaf mortar connection layer mechanically interlocked, and the steel wire grid mortar-perlite-polystyrene insulation structure is combined with the prefabricated concrete shear wall through light steel composite trusses and load-bearing steel wire grids connect.

Load-bearing steel wire frame: composed of outer leaf mortar layer steel wire mesh 18, inner leaf mortar layer steel wire mesh 13 spot-welded steel wire mesh frame horizontal abdominal wire 26 and steel wire mesh frame oblique abdominal wire 27, steel wire frame horizontal abdominal wire 26 and steel wire The oblique abdominal wire 27 of the network frame penetrates the perlite board 16 and the polystyrene insulation board 15 and then extends into the concrete of the shear wall. In this way, the connection between the steel wire grid mortar-perlite-polystyrene insulation structure and the concrete shear wall is realized.

Light steel composite truss: It is the outer mortar surface layer of the steel wire mesh frame composed of the outer leaf mortar layer 17 and the outer leaf mortar layer steel wire mesh 18, the horizontal countersunk broken bridge long self-tapping nail connector 24, the combined countersunk broken bridge long self-tapping A truss formed by nail connectors and 25 chords. The light steel composite truss is composed of the outer mortar surface layer 17, the vertical C-shaped steel 9 of the light steel frame and the horizontal C-shaped steel 10 of the light steel frame, which are welded by C-shaped steel with vertical and horizontal spacings not greater than 800. U-shaped steel wires 14 with a diameter of 2mm are spot-welded at the position where the light steel frame is 10mm away from the steel wire mesh 13 of the inner leaf mortar layer to connect the steel wire mesh and the light steel frame, and the vertical C-shaped steel of the light steel frame is 9 Horizontal distribution steel wire spot welding with inner leaf mortar layer steel wire mesh 13, light steel frame horizontal C-shaped steel 10 and inner leaf mortar layer steel wire mesh 13 vertical distribution steel wire spot welding, the distance between horizontal and vertical spot welding is not greater than 200mm; The cross-section of the light steel frame is 70mm high, 50mm wide, and the plate thickness is not less than 2mm. The light steel frame has a width of 140mm and a height of 60mm. Steel section; the vertical C-shaped steel 9 protruding steel section of the light steel frame is anchored into the shear wall concrete 1 from the position where the horizontal and vertical distribution steel bars of the shear wall are 10mm away from the outer distribution steel bars, and the inner leaf mortar layer The net distance between the steel wire mesh 13 and the steel bars distributed on the outside of the shear wall is 20mm. After the shear wall concrete is poured, the 10mm high section of the light steel frame with protruding steel sections is embedded in the shear wall concrete 10mm, and the protruding steel sections are anchored to the shear wall. 60mm in force wall concrete. In order to facilitate the self-tapping screws to connect the C-shaped steel webs of the self-tapping light steel sash, the webs of the vertical C-shaped steel 9 of the light steel sash and the horizontal C-shaped steel 10 of the light steel sash are cut smaller than the self-tapping screws. diameter round holes for self-tapping screws to pass through.

The light steel sash 11 of the window frame is to arrange the light steel sash around the window opening of the concrete shear wall 1, arrange the vertical C-shaped steel 9 of the light steel sash along the left and right edges of the window frame, and arrange it along the upper and lower edges of the window frame The light steel sash horizontal C-shaped steel 10, the outer surface of the light steel sash 11 near the transmission side of the window frame is flush with the concrete on the window frame surface, the inner side of the flange is pasted with wooden blocks, and the self-tapping nails pass through the joints on the connecting steel plate 22 Self-tapping nail holes, self-tapping connection window frame light steel sash 11 flanges, self-tapping nails drilled into the wood blocks inside the flanges. The outer chord of the steel mesh mortar layer strip composed of the outer leaf mortar layer steel wire mesh 18, the vertical C-shaped steel 9 of the light steel frame and the inner chord of the horizontal C-shaped steel 10 of the light steel frame, and the long self-tapping of the horizontal countersunk broken bridge Nail connectors 24 web bars and combined countersunk head broken bridge long self-tapping nail connectors 25 chord rods; broken bridge self-tapping nail connectors drill through perlite board 16, polystyrene insulation board 15 self-tapping connection light steel frame vertical Horizontal C-shaped steel 10 to C-shaped steel 9 and light steel grid.

Window hole self-tapping nail block connection structure: window frame mortar strip 19 built-in window frame mortar strip steel wire mesh 20, window frame mortar strip steel frame mesh 20, outer leaf mortar layer steel wire mesh 18 and inner leaf mortar layer steel wire mesh 13 Lap joint, weld the mortar strip force transmission steel plate 21 on the window frame mortar strip steel wire mesh 20, the mortar strip force transmission steel plate 21 is docked with the window frame light steel frame 11C-shaped steel, and the window frame mortar strip 19 grooves Put into the connection steel plate 22 that opens self-tapping nail hole, adopt self-tapping nail 23 to pass connection steel plate 22 self-tapping connection mortar strip power transmission steel plate 21 and window frame light steel sash lattice 11C shape steel flange. Use high-tech performance mortar to smooth the 19 grooves of the window frame mortar strips to form self-tapping nail aggregate nodes.

Combined connection structure: including the upper and lower shear wall distribution steel bars 2 and the grouting sleeve 5 to inject grout 33; the left and right shear wall concrete post-cast strips 34 constitute the shear wall connection structure; Port 30 smears the connection structure of the insulation layer formed by cement-based mortar 29 and the connection structure of the outer leaf mortar layer steel wire mesh 18 of the outer leaf steel wire mesh cement mortar layer that connects the outer leaf mortar layer steel wire mesh 18 of the upper, lower and left and right wallboards with the outer leaf steel wire mesh cement mortar layer.

The connecting beam 6 is a continuous structure at the top of the window opening of the concrete shear wall 1, its length is equal to the width of the window opening, the section height is the distance from the upper edge of the window opening to the concrete top of the wall panel, and the section width is equal to the thickness of the wall. It is equipped with 6 Φ10 longitudinal steel bars and Φ8 stirrups with a spacing of 150mm. The longitudinal reinforcement and the stirrup form the connecting beam reinforcement cage 7. Between the longitudinal bars of the connecting beams 6, the vertical connecting steel bars 8 of connecting beams of Φ16 are arranged, and are connected with the grouting sleeves 5 of the upper wallboard. The bottom of the connecting beam 6, that is, the upper edge of the window hole, is equipped with light steel sash 11 horizontal C-shaped steel for the window frame, and the connecting beam 6 is equidistantly arranged along the length direction with 9 sections of vertical C-shaped steel for 2 sections of light steel sash.

The inner leaf mortar connection layer 12 and the inner leaf mortar layer steel wire mesh 13 are the mortar layer of the polystyrene insulation board dovetail groove and the shear wall concrete 1, and the inner leaf mortar layer steel wire mesh 13 and the polystyrene insulation board 15 with dovetail groove are net. The spacing is 10mm, and the 14mm thick mortar with a strength not lower than C20 is used to smooth the gap between the steel wire mesh 13 of the inner leaf mortar layer and the dovetail groove of the polystyrene insulation board; the U-shaped steel wire 14 is the steel wire mesh 13 of the inner leaf mortar layer and the light Steel grid connection structure, its bent flange is spot-welded with the steel wire mesh 13 of the inner leaf mortar layer, and the web bar is welded with the vertical C-shaped steel 9 of the light steel grid and the horizontal C-shaped steel 10 of the light steel grid.

The polystyrene insulation board 15 is a polystyrene insulation board with a dovetail groove at the joint between the inner side and the inner leaf mortar connection layer 12. The standard thickness is 200mm, and the thickness of the insulation board can be adjusted according to the building's regional climate conditions.

The perlite board 16 is the fireproof layer of the wall board, and its thickness is 25mm.

The outer leaf mortar layer 17 is a 25mm thick mortar layer with a strength of not less than C20 on the outside of the wallboard. The outer leaf mortar layer 17 has a built-in outer leaf mortar layer steel wire mesh 18 with a diameter of 2 mm and a spacing of 50 mm. The mortar of the outer leaf mortar layer steel wire mesh 18 Net protective layer 10mm.

The window frame mortar strip 19 is a window frame edge-sealing concrete mortar strip connecting the inner leaf mortar connection layer 12 and the outer leaf mortar layer 17, its thickness is 50mm, and the width is from the outer leaf mortar layer 17 to the outer concrete shear wall 1 The distance between the surface, the window frame mortar strip steel mesh 20 with a diameter of 4mm and a spacing of 200mm is arranged inside, and the window frame mortar strip steel mesh 20 is embedded in the inner leaf mortar connection layer 12, the outer leaf mortar layer 17100mm and the inner leaf mortar layer steel mesh 13 Lap and bind the outer leaf mortar layer steel wire mesh 18. The 220mm long and 80mm wide mortar strip force-transmitting steel plate 21 is welded to the two distributed steel bars of the window frame mortar strip steel mesh 20 along the direction outside the plane of the shear wall, and the distributed steel bars on the outside of the steel plate parallel to the plane of the shear wall are welded with To strengthen the anchoring performance of the steel plate and the mortar strip 19 of the window frame, grooves are left in the mortar strip 19 of the window frame at 21 places of the force-transmitting steel plate of the mortar strip, and the force-transmitting steel plate 21 of the mortar strip is docked with the light steel frame 11 of the window frame. Self-tapping nails 23 pass through the self-tapping nail holes of the connecting steel plate 22, self-tapping drills into the mortar strip power transmission steel plate 21 and the window frame light steel frame 11, and finally use high-performance mortar to place the mortar strip force transmission steel plate 21 on the window frame Mortar strip 19 grooves are filled up.

The long self-tapping screw connector 24 of the horizontal countersunk broken bridge and the long self-tapping screw connector 25 of the combined countersunk broken bridge are the web members of the light steel composite truss, and are used to connect the outer chord of the 25mm thick steel wire mesh mortar layer strip and the light steel truss. Connectors for inner chords of the sash. The horizontal countersunk head broken bridge long self-tapping screw connector 24 and the combined countersunk head broken bridge long self-tapping screw connector 25 are sunk into the countersunk head fiber composite connector with a size not less than 50, drilled through the perlite-polystyrene insulation layer, and self-tapped. Tapping connects the light steel sash. The countersunk head fiber composite connector is an outer square plate with a thickness of 3mm*60mm*60mm, a square plate with a setback of 4mm*46mm*46mm, a hollow round rod with a centered outer diameter of 14mm and an inner diameter of 10mm and a length of 50mm, and a centered outer diameter of 14mm with an inner diameter of 6mm and a length of 20mm. The hollow round rod is a connecting piece formed at one time. The angle between the square plate and the hollow round rod of the countersunk head fiber composite connector of the horizontal countersunk head broken bridge long self-tapping screw connector 24 is 90 degrees, and the combined countersunk head broken bridge long self-tapping screw connector 25 countersunk head fiber composite connector The angle between the rectangular plate and the hollow round rod is divided into two types: 90 degrees through the horizontal long self-tapping screw and 45 degrees through the oblique upward long self-tapping screw; the diameter of the cap of the steel self-tapping screw is 10mm, 6mm, full length with thread. Arrange horizontal countersunk head broken bridge long self-tapping screw connectors 24 on the top and bottom of the vertical C-shaped steel 9 of the light steel sash, and arrange the combined countersunk head broken bridge long self-tapping screw connector 25 in the middle. Horizontal countersunk broken bridge long self-tapping screw connectors 24 are arranged on the horizontal C-shaped steel 10 of the light steel frame grid, and the spacing is not more than 800mm.

The horizontal abdominal wire 26 of the steel wire grid and the oblique abdominal wire 27 of the steel wire grid are the supporting steel wires for connecting the inner leaf mortar layer steel wire mesh 13 and the outer leaf mortar layer steel wire mesh 18. The steel wire mesh frame consists of the inner leaf mortar layer steel wire mesh 13, the outer leaf mortar layer steel mesh 18, the steel wire mesh frame horizontal abdominal wire 26 with a diameter of 2mm at a spot welding distance of 200mm, and the oblique abdominal wire 27 of the steel wire mesh frame with an upward angle of 45 degrees. Composition, steel wire grid horizontal abdominal wire 26 and steel wire grid oblique abdominal wire 27 penetrate 25mm thick perlite board 16 and 24mm thick inner leaf mortar connection layer 12 bonded with 200 thick polystyrene insulation board 15 with dovetail groove Into the shear wall concrete 1 horizontal projection 60mm.

Wipe the strip 28 after the steel wire mesh cement mortar layer of the outer leaf, which is the connection structure of the wallboard, the lower and the left and right outer steel wire mesh mortar layers. A 75mm wide outer mortar surface layer is reserved for the prefabricated wallboard, lower, left, and right ends, and then the strip is wiped. After the wallboard is hoisted and positioned, the connecting position of the outer steel wire mesh mortar layer of the upper, lower or left and right adjacent wallboards is 150mm wide back plaster layer, built-in 50mm spacing, 2mm diameter reinforced steel wire mesh, and apply high-performance thermal insulation mortar, the outer leaf steel wire mesh cement mortar layer back plaster strip 28 ensures the integrity of the wall panel connection nodes, and has good waterproof It improves the weather resistance of the wallboard.

The cement-based mortar 29 is an inorganic bonding material applied at the 30 places of the polystyrene insulation board grooves at the wallboard connection position, which can enhance the integrity and waterproof performance of the polystyrene insulation board grooves 30.

The prefabricated concrete floor 31 is a prefabricated concrete floor between the upper and lower prefabricated shear walls, which is connected to the concrete 1 of the shear wall through the vertical connection steel bar 3 of the shear wall, and between the prefabricated concrete floor 31 and the upper wall Lay the shear wall mortar cushion 32.

The grouting material 33 is the connecting material for the vertically connecting steel bars 3 of the lower shear wall, the vertically connecting steel bars 8 of the connecting beams and the grouting sleeve 5 of the upper wallboard. After the assembly of the upper wall panel is completed, the vertical connecting steel bar 3 of the shear wall and the vertical connecting steel bar 8 of the connecting beam are penetrated into the grouting sleeve 5 of the upper wall panel, and the grouting material 33 is injected into the grouting hole to complete the vertical connecting steel bar of the upper and lower shear wall 3 connections.

Concrete post-pouring strip 34 is the assembly and connection structure of the left and right adjacent wall panels. The horizontally distributed steel bars protrude from the left and right ends of the wall panel by 280mm to overlap with the adjacent wall panels and bind the vertical structural bars and tie bars before pouring concrete. Cast strip band 34, finish the assembling connection of left and right wall panel.

The prefabricated light steel composite truss with window holes supports the steel wire grid mortar-perlite-polystyrene composite shear wall as follows:

First, prepare the thermal insulation shear wall, the process is as follows:

The first step, the factory processes and welds the vertical and horizontal C-shaped steel of the light steel frame, binds the shear wall reinforcement cage and the connecting beam reinforcement cage, installs the grouting sleeve, purchases the polystyrene insulation board and the perlite board, and installs them Cutting and assembling into the required size; preparation of internal and external steel wire mesh, steel wire mesh frame belly wire and window frame mortar strip steel mesh welded with force-transmitting steel plates, prefabricated horizontal countersunk broken bridge long self-tapping nail connectors and combined countersunk broken bridge Long self-tapping screw connector;

The second step is to install and position the light steel frame on the steel cage of the shear wall, connect the inner steel wire mesh to the light steel frame through U-shaped steel wires, and use engineering plastics and other pads to insulate the light steel frame and polystyrene The thickness of the mortar layer in the surface interval of the dovetail groove of the board and the positioning of the polystyrene insulation board, the perlite board and the outer steel wire mesh; the window frame mortar strip steel mesh and the inner and outer leaf steel mesh are bound, and the mortar strip welded on it transmits force The steel plate is aligned with the light steel frame of the window frame;

The third step is to penetrate the horizontal abdominal wire of the steel wire grid and the oblique abdominal wire of the steel wire grid in turn through the perlite board and the polystyrene insulation board, and spot weld the two ends of the abdominal wire of the steel wire grid with the inner and outer steel wire mesh to form a steel wire mesh and extend into the shear wall for a certain anchoring distance; the long self-tapping of the horizontal broken bridge self-tapping screw connector and the combined broken bridge self-tapping screw connector penetrates the perlite board and the polystyrene insulation board in sequence, and the self-tapping connection is light steel frame, and extend into the interior of the shear wall for a certain anchorage distance;

The fourth step is to pour the inner and outer steel wire mesh mortar surfaces and the window frame mortar strips with grooves, and maintain them; put the connecting steel plates in the grooves of the window frame mortar strips, and the surface and the mortar strips transmit force The steel plate and the light steel frame of the window frame are bonded to the side flange of the window hole, and self-tapping nails are used to pass through the self-tapping nail holes of the connecting steel plate, and the self-tapping connection mortar strips are attached to the force-transmitting steel plate and the light steel frame flange of the window frame; performance mortar is used Smooth out the grooves of the window frame mortar strips;

The fifth step is to pour the shear wall concrete with the steel wire grid mortar-perlite-polystyrene insulation structure as the base form, and maintain it;

Then assemble the prepared thermal insulation shear wall. The construction process is as follows:

Step 6: Install the prefabricated concrete floor slab on the upper part of the concrete shear wall of the lower floor, and lay a mortar cushion; lap the horizontal steel bars of the left and right prefabricated shear walls, bind the vertical structural steel bars and tie bars, and , The vertical concrete post-casting strip of the right adjacent wall panel has an inner supporting formwork, and the outer polystyrene insulation board is also used as a formwork;

Step 7: Connect the lower shear wall and the longitudinal steel bar at the top of the connecting beam to the grouting sleeve at the bottom of the upper shear wall, and connect the polystyrene insulation board grooves of the upper and lower wall panels and the back-applied mortar strips. Fill the grouting material into the sleeve through the reserved holes, bind the additional steel wire mesh in the horizontal reserved strips, and use high-performance thermal insulation mortar to smooth the horizontal mortar strips between the upper and lower wall panels; The building concrete in the strip is poured backward, the additional steel wire mesh is bound in the vertical reserved strip, and the vertical mortar strip between the left and right wall panels is smoothed with high-performance thermal insulation mortar;

Step 8: Remove the formwork to form the combined connection structure of the upper and lower wall panels with mortar strips and grouting sleeves, and the combined connection structure of the left and right wall panels with mortar strips and post-cast concrete, and paint the wall panels with waterproof paint For the mortar surface of the outer leaves, use interior wall paint to paint the internal reinforced concrete shear walls of the wall panels.

The above is only a preferred embodiment of the present utility model, but the scope of protection of the present utility model is not limited thereto. Anyone familiar with the technical field is within the technical scope disclosed by the utility model. Any equivalent replacement or change of the technical solution and the concept of the utility model shall fall within the scope of protection of the utility model.

Claims (9)

1. The prefabricated light steel wire grid mortar-perlite-polystyrene shear wall with window holes is characterized in that it includes: Prefabricated concrete shear walls are composed of concrete shear walls, window openings and coupling beams on the upper part of window openings; shear wall distribution reinforcement, shear wall vertical connection reinforcement, tie reinforcement, and coupling beam reinforcement cage and coupling beam vertical connection The steel bars are bound to form a shear wall reinforcement cage. The lower part of the vertical connection reinforcement of the shear wall is connected with a grouting sleeve. The part out is connected with the prefabricated concrete floor and the grouting sleeve on the upper floor; The light steel sash is arranged on the outside of the distributed steel bars of the shear wall to form a light steel sash for the window frame, which is welded by the vertical C-shaped steel of the light steel sash and the horizontal C-steel of the light steel sash; the light steel sash There are light steel frame self-tapping nail holes on the web, and there are light steel frame flange grooves on the flange; The inner steel wire mesh mortar layer of the inner leaf is composed of the steel wire mesh of the inner leaf mortar layer and the inner leaf mortar connection layer, the flange of the U-shaped steel wire is spot-welded with the steel wire mesh of the inner leaf mortar layer, and the web bar of the U-shaped steel wire is welded with the light steel frame ; The steel wire grid mortar-perlite-polystyrene insulation structure is composed of polystyrene insulation board with polystyrene insulation board dovetail groove, perlite board, outer leaf mortar layer and outer leaf mortar layer steel wire mesh, polystyrene insulation board The dovetail groove is mechanically engaged with the mortar connection layer of the inner leaf; The load-bearing steel wire frame is composed of the outer leaf mortar layer steel wire mesh, the inner leaf mortar layer steel wire mesh spot-welded steel wire mesh frame horizontal belly wire and the steel wire mesh frame oblique belly wire, the steel wire mesh frame horizontal belly wire and the steel wire mesh frame oblique belly wire After penetrating the perlite board and polystyrene insulation board, it extends into the concrete of the shear wall to realize the connection between the steel wire grid mortar-perlite-polystyrene insulation structure and the concrete shear wall; Light steel composite truss, the outer chord of the steel mesh mortar layer strip composed of the outer mortar surface layer and the outer leaf mortar layer steel mesh, the vertical C-shaped steel of the light steel frame and the inner chord of the horizontal C-shaped steel of the light steel frame, The web bar of the horizontal countersunk head broken bridge long self-tapping screw connector and the chord rod of the combined countersunk head broken bridge long self-tapping screw connector; the broken bridge self-tapping screw connector is self-tapping after drilling through the perlite board polystyrene insulation board Connect the vertical C-shaped steel of the light steel frame and the horizontal C-shaped steel of the light steel frame; Window hole self-tapping screw block connection structure, window frame mortar strip with built-in window frame mortar strip steel wire mesh, window frame mortar strip steel frame mesh and outer leaf mortar layer steel mesh and inner leaf mortar layer steel mesh overlap, in the window Weld the mortar strip force-transmission steel plate on the steel wire mesh of the frame mortar strip, and the mortar strip force transmission steel plate is connected with the C-shaped steel of the light steel frame of the window frame, and put the self-tapping nail holes in the groove of the window frame mortar strip The connecting steel plate is connected by self-tapping nails through the connecting steel plate and then self-tapping to connect the mortar strip force-transmitting steel plate and the C-shaped steel flange of the light steel frame of the window frame; use mortar to smooth the groove of the mortar strip of the window frame to form Self-tapping nail cluster node; Combined connection structure, including the shear wall connection structure composed of the shear wall distribution reinforcement in the upper and lower shear walls, the grouting material in the grouting sleeve, and the concrete post-casting strips of the left and right shear walls; it also includes The connection structure of the insulation layer composed of cement-based mortar applied to the tongue and groove of the polystyrene insulation board and the connection structure of the steel wire mesh of the outer leaf mortar layer of the outer leaf steel wire mesh cement mortar layer connected by the upper, lower, left and right wall panels; The post-wiping strips of the outer leaf steel wire mesh cement mortar layer are the connection structure of the wallboard, bottom, left and right outer steel wire mesh mortar layers; Strips, after the wall panels are hoisted and positioned, the connection position of the outer steel mesh mortar layers of the upper, lower or left and right adjacent wall panels is the post-plaster layer, and the reinforced steel mesh is built in, and high-performance thermal insulation mortar is applied; the concrete is poured after The strips are the assembly and connection structure of the left and right adjacent wall panels. The horizontally distributed steel bars protrude from the left and right ends of the wall panels to overlap with the adjacent wall panels, and the vertical structural bars and tie bars are bound. After the concrete is poured, the strips are poured to complete the left , The assembly connection of the right wall panel. 2. The assembled light steel wire grid mortar-perlite-polystyrene shear wall with window holes according to claim 1, wherein the concrete shear wall is an assembled reinforced concrete shear wall; The distribution reinforcement of the force wall adopts double rows of reinforcement, the diameter of horizontal distribution reinforcement is 10mm, the spacing is 200mm, the diameter of vertical distribution reinforcement is 10mm, the spacing is 200mm, the net protective layer thickness is 20mm, and the spacing of 400mm is 6mm in diameter. rebar. 3. The assembled light steel wire grid mortar-perlite-polystyrene shear wall with window holes according to claim 1, wherein the connecting beam is a connection structure at the top of the window hole of the concrete shear wall, and The length is equal to the width of the window opening, the section height is the distance from the upper edge of the window opening to the concrete top of the wall panel, and the section width is equal to the thickness of the wall. 4. The assembled light steel wire grid mortar-perlite-polystyrene shear wall with window holes according to claim 1, characterized in that, the vertical C-shaped steel of the light steel frame and the light steel frame The horizontal C-shaped steel of the grid is welded by the C-shaped steel with a vertical and horizontal spacing of no more than 800. The light steel frame grid adopts U-shaped steel wires with a diameter of 2mm at a position with a net distance of 10mm from the steel wire mesh of the inner leaf mortar layer. Spot welding to connect the steel wire mesh and the light steel frame, the vertical C-shaped steel of the light steel frame and the steel wire mesh of the inner leaf mortar layer are spot-welded with steel wires, the horizontal C-shaped steel of the light steel frame is vertically connected with the steel wire mesh of the inner leaf mortar layer Steel wire spot welding is distributed in the direction, and the distance between horizontal and vertical spot welding is not more than 200mm. 5. The prefabricated light steel wire grid mortar-perlite-polystyrene shear wall with window holes according to claim 1, characterized in that, the light steel frame of the window frame is around the window hole of the concrete shear wall The light steel sash arranged, the vertical C-shaped steel of the light steel sash is arranged along the left and right edges of the window frame, the horizontal C-shaped steel of the light steel sash is arranged along the upper and lower edges of the window frame, and the light steel sash of the window frame is close to the transmission The outer surface of the flange on one side is flush with the concrete on the surface of the window frame, the inside of the flange is pasted with wooden blocks, the self-tapping nails pass through the self-tapping nail holes on the connecting steel plate, the self-tapping connecting window frame light steel sash flange, self-tapping nails Drill into the wood block on the inside of the flange. 6. The assembled light steel wire grid mortar-perlite-polystyrene shear wall with window holes according to claim 1, characterized in that, the inner leaf mortar connection layer inner leaf mortar layer steel wire mesh is polystyrene insulation The mortar layer of the board dovetail groove and the concrete of the shear wall, the net distance between the inner leaf mortar layer steel wire mesh and the polystyrene insulation board with dovetail groove is 10mm, and the inner leaf mortar is smoothed with a 14mm thick mortar with a strength of not less than C20 The gap between the steel wire mesh of the first layer and the dovetail groove of the polystyrene insulation board; the U-shaped steel wire is the connection structure between the steel wire mesh of the inner leaf mortar layer and the light steel frame grid, and its bent flange is spot-welded with the steel wire mesh of the inner leaf mortar layer. The vertical C-shaped steel of the light steel frame and the horizontal C-shaped steel of the light steel frame are welded; the polystyrene insulation board is a polystyrene insulation board with a dovetail groove at the connection between the inner side and the inner leaf mortar connection layer; the perlite The board is a wallboard fireproof layer with a thickness of 25mm; the outer leaf mortar layer is a 25mm thick mortar layer with a strength greater than or equal to C20 on the outside of the wallboard, and the outer leaf mortar layer has a built-in outer leaf mortar layer steel wire with a diameter of 2mm and a spacing of 50mm The thickness of the net mortar protective layer of the outer leaf mortar layer steel mesh is 10mm. 7. The assembled light steel wire grid mortar-perlite-polystyrene shear wall with window holes according to claim 1, characterized in that, the mortar strips of the window frame are used to connect the inner leaf mortar connection layer and the outer leaf The window frame edge sealing concrete mortar strip of the mortar layer, its thickness is 50mm, and the width is the distance from the outer leaf mortar layer to the outer surface of the concrete shear wall, and the window frame mortar strip steel mesh with a diameter of 4mm and a spacing of 200mm is arranged inside. The frame mortar strip steel mesh is embedded in the inner leaf mortar connection layer and the outer leaf mortar layer 100mm, and the inner leaf mortar layer steel wire mesh and the outer leaf mortar layer steel mesh are lapped and bound; the mortar strip with a length of 220mm and a width of 80mm The two distributed steel bars of the frame mortar strip steel mesh are welded along the direction outside the plane of the shear wall, and the distributed steel bars on the outside of the steel plate and the direction parallel to the plane of the shear wall are welded to strengthen the anchoring performance of the steel plate and the window frame mortar strip, and the mortar strip There are grooves in the mortar strip of the window frame at the force transmission steel plate, and the force transmission steel plate of the mortar strip is docked with the light steel frame of the window frame, and self-tapping nails are used to pass through the self-tapping nail holes of the connecting steel plate, and self-tapping drilled into the mortar strip For the force transmission steel plate and the light steel frame of the window frame, use mortar to fill up the groove of the window frame mortar strip at the force transmission steel plate of the mortar strip. 8. The assembled light steel wire grid mortar-perlite-polystyrene shear wall with window holes according to claim 1, characterized in that the horizontal countersunk head broken bridge long self-tapping screw connector and the combined countersunk head The long self-tapping nail connectors of the broken bridge are the web members of the light steel composite truss, which are the connectors connecting the outer chord of the 25mm thick steel mesh mortar layer strip and the inner chord of the light steel frame. 9. The assembled light steel wire grid mortar-perlite-polystyrene shear wall with window holes according to claim 1, characterized in that, the horizontal abdominal wires of the steel wire grid and the oblique abdominal wires of the steel wire grid, It is the supporting steel wire for connecting the inner leaf mortar layer steel wire mesh and the outer leaf mortar layer steel wire mesh.

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