Fabricated light steel composite truss with window opening supporting steel wire mesh frame mortar-pearlite-polyphenyl composite shear wall and method

Abstract

The application discloses an assembled light steel combined truss supporting steel wire mesh frame mortar-pearlite-polyphenyl composite shear wall and a method, and relates to the technical field of assembled concrete building structure engineering. The application comprises a steel wire mesh mortar-pearlite surface layer which is composed of a steel wire mesh mortar layer and a pearlite fireproof layer; a load-bearing steel wire mesh frame which is composed of inner and outer steel wire mesh spot-welded horizontal web wires and inclined web wires; a light steel frame which is welded by C-shaped steel; a light steel combined truss which is composed of a steel wire mesh mortar layer strip outer chord, a light steel frame vertical C-shaped steel inner chord and a countersunk broken bridge long self-tapping screw; a window frame self-tapping screw set block combined connection structure which is a connecting joint of a reinforced mortar strip and a concrete shear wall window frame light steel frame; and an assembled shear wall combined connection structure which refers to the assembly of steel bar sleeves between upper and lower concrete shear wall plates and the assembly of post-cast concrete strips for left and right shear walls. The application has the characteristics of small thickness, light weight, good fire resistance, waterproofness and heat insulation performance.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of prefabricated concrete building structure engineering, more specifically, it relates to a prefabricated light steel composite truss bearing steel wire mesh frame mortar-pearlite-polyphenyl composite shear wall with window hole and a method. BACKGROUND

[0002] At present, prefabricated concrete structures are widely used in multi-story and high-rise residential buildings, but the innovative development of matching energy-saving prefabricated components is lagging behind. The thermal performance of the envelope structure of ultra-low energy and near-zero energy buildings is not high, and the integration level is low. Therefore, the development of multifunctional integrated prefabricated shear wall exterior wall system and the development of prefabricated composite exterior wall system integrated with decoration, fireproofing, waterproofing, thermal insulation, and weather resistance are major needs for the development of national prefabricated green buildings.

[0003] The bottleneck problems of the prior art are: 1. The traditional exterior wall exterior insulation is easy to fall off under the action of wind load and long-term load, and has poor weather resistance. In recent years, safety accidents caused by the falling off of exterior wall exterior insulation have occurred frequently, and the accidents are mainly caused by the falling off of thermal insulation mortar and inorganic light aggregate fireproofing and thermal insulation boards; once the exterior wall exterior insulation layer is hollowed out and falls off, it will fall from a high altitude along with the external decorative surface layer, which is easy to cause injury to pedestrians or damage to objects; 2. The deformation of the super-thick insulation layer under long-term load is difficult to control. The use of traditional exterior insulation is limited by building height. Since the exterior wall exterior insulation is arranged along the building exterior wall, and the elastic modulus of the insulation board is low and the deformation is large, the gravity load of the mortar insulation layer cannot be completely transmitted to the main structure of the layer, so the gravity load accumulates with the increase of the structure height, which is not conducive to the overall stability of the exterior insulation layer. The application height of thin plaster exterior wall insulation system has been strictly limited in some domestic areas; 3. The overall performance of the window hole structure of the traditional exterior insulation wall is poor, the exterior insulation structure is easy to crack and fall off at the window hole, and the weather resistance and thermal insulation performance cannot meet the use requirements; 4. The fire resistance of the traditional exterior insulation wall is poor. Most exterior insulation structures have no fire protection layer, and the fire resistance of organic insulation boards such as polystyrene, polyurethane, and foamed rubber is poor, which has led to many fire accidents of exterior insulation systems; 5. The exterior insulation structure and the base wall are connected by expansion plastic anchors and thermal plastic nails, and the non-metallic connecting pieces have low tensile and shear strength and poor weather resistance, which cannot effectively connect the insulation structure and the wall panel; 6. The joint and hole treatment of the traditional exterior insulation board is difficult, and the joint position is prone to water leakage, which is easy to cause the insulation structure to loosen and fall off. SUMMARY

[0004] The technical problem to be solved by the present application is to provide an assembled light steel composite truss bearing steel wire net rack mortar-perlite-polyphenyl composite shear wall with a window hole, which is suitable for an assembled concrete shear wall structure super-low energy consumption house with a window hole outer wall, has small thickness, light weight, good fire resistance, waterproofness and heat insulation performance.

[0005] To solve the above technical problem, the technical solution adopted by the present application is:

[0006] The assembled light steel composite truss bearing steel wire net rack mortar-perlite-polyphenyl composite shear wall with a window hole comprises:

[0007] The assembled concrete shear wall is composed of a concrete shear wall, a window hole and a coupling beam at the upper part of the window hole; a shear wall steel reinforcement cage is formed by binding a shear wall distribution steel reinforcement, a shear wall vertical connecting steel reinforcement, a tie steel reinforcement and a coupling beam steel reinforcement cage and a coupling beam vertical connecting steel reinforcement; a lower part of the shear wall vertical connecting steel reinforcement is connected with a grouting sleeve; and a part of the shear wall vertical connecting steel reinforcement and a part of the coupling beam vertical connecting steel reinforcement, which protrude from the top of the wall plate, are connected with an assembled concrete floor and a grouting sleeve of the upper layer;

[0008] The light steel frame is arranged outside the shear wall distribution steel reinforcement and is formed by welding a light steel frame vertical C-shaped steel and a light steel frame horizontal C-shaped steel; the horizontal and vertical C-shaped steels at the edges of the window frame are welded to form a window frame light steel frame; a light steel frame self-tapping screw hole is formed in the web of the light steel frame, and a light steel frame flange groove is formed in the flange;

[0009] The inner leaf inner steel wire net mortar layer is composed of an inner leaf mortar layer steel wire net and an inner leaf mortar connecting layer; the flange of the U-shaped steel wire is spot-welded to the inner leaf mortar layer steel wire net, and the web of the U-shaped steel wire is welded to the light steel frame;

[0010] The steel wire net rack mortar-perlite-polyphenyl heat preservation structure is composed of a polyphenyl heat preservation plate with a dovetail groove, a perlite plate and an outer leaf mortar layer and an outer leaf mortar layer steel wire net; the dovetail groove on the polyphenyl heat preservation plate is mechanically engaged with the inner leaf mortar connecting layer;

[0011] The load-bearing steel wire net rack is composed of an outer leaf mortar layer steel wire net, an inner leaf mortar layer steel wire net spot-welded steel wire net rack horizontal web and a steel wire net rack oblique web; the steel wire net rack horizontal web and the steel wire net rack oblique web penetrate the perlite plate and the polyphenyl heat preservation plate and then protrude into the concrete of the shear wall, so as to realize the tie of the steel wire net rack mortar-perlite-polyphenyl heat preservation structure and the concrete shear wall;

[0012] The light steel composite truss is composed of the outer chord of the steel wire mesh mortar layer strip formed by the outer mortar surface layer and the outer leaf steel wire mesh mortar layer, the inner chord of the vertical C-shaped steel of the light steel frame and the horizontal C-shaped steel of the light steel frame, the web of the horizontal sunken head broken bridge long self-tapping nail connecting piece and the chord of the composite sunken head broken bridge long self-tapping nail connecting piece; the self-tapping nail connecting piece is used for connecting the vertical C-shaped steel of the light steel frame and the horizontal C-shaped steel of the light steel frame after penetrating the perlite board and the polyphenyl thermal insulation board;

[0013] The window hole self-tapping nail set block connecting structure is characterized in that the window frame mortar strip is internally provided with a window frame mortar strip steel wire mesh, the window frame mortar strip steel wire mesh is overlapped with the outer leaf mortar layer steel wire mesh and the inner leaf mortar layer steel wire mesh, a mortar strip force transmission steel plate is welded on the window frame mortar strip steel wire mesh, the mortar strip force transmission steel plate is butted with the C-shaped steel of the window frame light steel frame, a connecting steel plate with a self-tapping nail hole is placed in the groove of the window frame mortar strip, and the self-tapping nail is used for self-tapping connecting the mortar strip force transmission steel plate and the C-shaped steel flange of the window frame light steel frame after penetrating the connecting steel plate; high-performance mortar is used for smearing the groove of the window frame mortar strip, and a self-tapping nail set block node is formed.

[0014] The combined connecting structure is characterized in that the combined connecting structure is composed of the shear wall connecting structure formed by the shear wall distribution steel bars in the upper and lower shear walls and the grouting material in the grouting sleeve, the concrete post-cast strip of the left and right shear walls; the thermal insulation layer connecting structure formed by the tongue-and-groove cement-based mortar of the polyphenyl thermal insulation board, and the connecting structure of the outer leaf mortar layer steel wire mesh formed by the outer leaf steel wire mesh cement mortar layer post-cast strip connecting the outer leaf mortar layer steel wire mesh of the upper and lower and left and right wallboards; the outer leaf steel wire mesh cement mortar layer post-cast strip is the upper and lower and left and right outer steel wire mesh mortar layer connecting structure of the wallboard; the upper and lower and left and right ends of the prefabricated wallboard are provided with 75mm-wide outer mortar surface layer post-cast strips, the wallboard is hoisted and positioned, the outer steel wire mesh mortar layer connecting positions of the upper and lower or left and right adjacent wallboards are 150mm-wide post-cast layers, the built-in 50mm-spaced 2mm-diameter reinforcing steel wire mesh is coated with high-performance thermal insulation mortar; the concrete post-cast strip is the left and right adjacent wallboard assembly connecting structure, the horizontal distribution steel bars protrude from the left and right ends of the wallboard by 280mm, the post-cast concrete post-cast strip is formed after the horizontal distribution steel bars are overlapped with the adjacent wallboard and bound with the vertical structural steel bars and the tie steel bars, and the assembly connection of the left and right wallboards is completed.

[0015] Preferably, the concrete shear wall is a prefabricated reinforced concrete shear wall; the shear wall distribution steel bars are arranged in double rows, the horizontal distribution steel bars have a diameter of 10 mm and a spacing of 200 mm, the vertical distribution steel bars have a diameter of 10 mm and a spacing of 200 mm, the net protection layer has a thickness of 20 mm, the tie steel bars with a diameter of 6 mm are arranged at intervals of 400 mm; the grouting sleeves are used for assembly connection, 16 grouting sleeves are arranged at the bottom of the wall panel at intervals of 600, 16 steel bars with a diameter of 16 mm arranged symmetrically are used as the shear wall vertical connecting steel bars of the upper and lower shear walls and the vertical connecting steel bars of the coupling beams; the vertical distribution steel bars in the shear wall distribution steel bars do not protrude from the wall panel, the top of the shear wall longitudinal connecting steel bars and the vertical connecting steel bars of the coupling beams protrude from the wall panel by 240 mm and are connected with the prefabricated concrete floor and the upper wall panel; within the range of 300 mm above the grouting sleeves at the bottom of the wall panel, the total densification height is 500 mm, the horizontal distribution steel bars with a diameter of 10 mm and a spacing of 100 mm are arranged in a densified manner, and the horizontal distribution steel bars protrude from the left and right ends of the wall panel by 280 mm and are connected with the adjacent wall panel after the post-cast concrete post-cast strip is poured.

[0016] Preferably, the coupling beam is a connecting structure at the top of a window opening of a concrete shear wall, the length of the coupling beam is equal to the width of the window opening, the cross-sectional height is the distance from the upper edge of the window opening to the top of the wall panel concrete, and the cross-sectional width is equal to the thickness of the wall; 6 longitudinal steel bars with a diameter of 10 mm and stirrups with a diameter of 8 mm and a spacing of 150 mm are arranged in the coupling beam; the longitudinal steel bars and the stirrups form a coupling beam steel cage; the coupling beam vertical connecting steel bars with a diameter of 16 mm are arranged between the longitudinal steel bars of the coupling beam and connected with the grouting sleeves of the upper wall panel; the coupling beam is provided with horizontal C-shaped steel of a window frame light steel frame at the bottom of the coupling beam, i.e. the upper edge of the window opening, and the coupling beam is provided with two sections of light steel frame vertical C-shaped steel arranged equidistantly along the length direction.

[0017] Preferably, the vertical C-shaped steel of the light steel frame and the horizontal C-shaped steel of the light steel frame are welded by C-shaped steel with vertical and horizontal spacing not greater than 800, the light steel frame is spot welded at the position with net distance of 10 mm from the inner leaf mortar layer steel mesh by U-shaped steel wire with diameter of 2 mm to connect the steel mesh and the light steel frame, the vertical C-shaped steel of the light steel frame is spot welded with the horizontal distribution steel wire of the inner leaf mortar layer steel mesh, the horizontal C-shaped steel of the light steel frame is spot welded with the vertical distribution steel wire of the inner leaf mortar layer steel mesh, the spacing of horizontal and vertical spot welding is not greater than 200 mm; the cross section of the light steel frame is 70 mm high and 50 mm wide, the thickness of the plate is not less than 2 mm, the light steel frame has a wide groove of 140 mm and a high groove of 60 mm, thereby forming a convex steel section with net distance of 140 mm, height of 60 mm and width of 60 mm; the convex steel section of the vertical C-shaped steel of the light steel frame is anchored into the concrete of the shear wall at a position with net distance of 10 mm from the outer distribution steel wire between the horizontal and vertical distribution steel bars of the shear wall, the net distance between the inner leaf mortar layer steel mesh and the outer distribution steel wire of the shear wall is 20 mm, the light steel frame with convex steel section is embedded into the concrete of the shear wall by 10 mm in 10 mm high section after pouring the concrete of the shear wall, and the convex steel section is anchored in the concrete of the shear wall by 60 mm; in order to facilitate the connection of the C-shaped steel web of the light steel frame by self-tapping nails, a circular hole smaller than the diameter of the self-tapping nail is opened on the web 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 nail can pass through.

[0018] Preferably, the window frame light steel frame is a light steel frame arranged around the window hole of the concrete shear wall, the vertical C-shaped steel of the light steel frame is arranged along the left and right edges of the window frame, and the horizontal C-shaped steel of the light steel frame is arranged along the upper and lower edges of the window frame, the wing flange outer surface of the window frame light steel frame close to the driving side is flush with the surface concrete of the window frame, the wing flange inner side is pasted with a wood block, the self-tapping nail passes through the self-tapping nail hole on the connecting steel plate, the self-tapping nail connects the wing flange of the window frame light steel frame, and the self-tapping nail is drilled into the wood block on the inner side of the wing flange.

[0019] Preferably, the inner leaf mortar connecting layer inner leaf mortar layer steel mesh is a mortar layer of the dovetail groove of the polyphenyl insulation board and the shear wall concrete, the net distance between the inner leaf mortar layer steel mesh and the polyphenyl insulation board with dovetail groove is 10 mm, the gap between the inner leaf mortar layer steel mesh and the dovetail groove of the polyphenyl insulation board is filled with 14 mm thick mortar with rough surface and strength not less than C20; the U-shaped steel wire is a connection structure of the inner leaf mortar layer steel mesh and the light steel frame, the bent wing flange is spot welded with the steel wire of the inner leaf mortar layer steel mesh, and the web 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 polyphenyl insulation board is a polyphenyl insulation board with dovetail groove at the connection between the inner side and the inner leaf mortar connecting layer; the perlite board is a wall board fireproof layer with thickness of 25 mm; the outer leaf mortar layer is a 25 mm thick mortar layer with strength greater than or equal to C20 on the outer side of the wall board, the outer leaf mortar layer has an outer leaf mortar layer steel mesh with diameter of 2 mm and spacing of 50 mm, and the mortar net protection layer thickness of the outer leaf mortar layer steel mesh is 10 mm.

[0020] Preferably, the window frame mortar strip is a window frame edge sealing concrete mortar strip connecting the inner leaf mortar connecting layer and the outer leaf mortar layer, with a thickness of 50 mm and a width of the distance from the outer leaf mortar layer to the outer surface of the concrete shear wall, and a window frame mortar strip steel mesh with a diameter of 4 mm and a spacing of 200 mm is arranged inside; the window frame mortar strip steel mesh is embedded in the inner leaf mortar connecting layer and the outer leaf mortar layer by 100 mm, and the inner leaf mortar layer steel mesh and the outer leaf mortar layer steel mesh are overlapped and tied; the mortar strip force transmission steel plate with a length of 220 mm and a width of 80 mm is welded with 2 distribution steels along the outer direction of the shear wall plane of the window frame mortar strip steel mesh, and the steel plate is welded with the distribution steel in the parallel direction of the shear wall plane to strengthen the anchoring performance of the steel plate and the window frame mortar strip; the window frame mortar strip at the mortar strip force transmission steel plate has a groove, the mortar strip force transmission steel plate is butted with the window frame light steel frame, self-tapping screws are used to pass through the self-tapping screw holes of the connecting steel plate, and the self-tapping screws are screwed into the mortar strip force transmission steel plate and the window frame light steel frame, and finally high-performance mortar is used to fill the groove of the window frame mortar strip at the mortar strip force transmission steel plate.

[0021] Preferably, the horizontal sunken long self-tapping nail connecting piece and the combined sunken long self-tapping nail connecting piece are both web members of a light steel composite truss, and are connecting pieces connecting the outer chord of the 25 mm thick steel mesh mortar layer strip and the inner chord of the light steel frame; the horizontal sunken long self-tapping nail connecting piece and the combined sunken long self-tapping nail connecting piece are sunken into a sunken fiber composite connecting piece with a size greater than or equal to 50 mm, drill through the perlite-polyphenyl insulation layer, and self-tapping connect the light steel frame; the sunken fiber composite connecting piece is a one-time formed connecting piece with an outer square plate of 3 mm X 60 mm X 60 mm, a setback square plate of 4 mm X 46 mm X 46 mm, a hollow circular rod of an outer diameter of 14 mm and an inner diameter of 10 mm and a length of 50 mm in the middle, and a hollow circular rod of an outer diameter of 14 mm and an inner diameter of 6 mm and a length of 20 mm in the middle; the angle between the square plate and the hollow circular rod of the sunken fiber composite connecting piece of the horizontal sunken long self-tapping nail connecting piece is 90 degrees, and the angle between the rectangular plate and the hollow circular rod of the sunken fiber composite connecting piece of the combined sunken long self-tapping nail connecting piece is divided into 90 degrees through the horizontal long self-tapping nail and 45 degrees through the oblique upward long self-tapping nail; the steel self-tapping nail has a nail cap diameter of 10 mm, a nail rod of 6 mm, and a length with threads; the horizontal sunken long self-tapping nail connecting piece is arranged at the top and bottom of the vertical C-shaped steel of the light steel frame, and the combined sunken long self-tapping nail connecting piece is arranged in the middle; the horizontal sunken long self-tapping nail connecting piece is arranged on the transverse C-shaped steel of the light steel frame with a spacing not exceeding 800 mm.

[0022] Preferably, the horizontal webbing of the steel wire mesh frame and the inclined webbing of the steel wire mesh frame are bearing 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 the inner leaf mortar layer steel wire mesh, the outer leaf mortar layer steel wire mesh, the horizontal webbing of the steel wire mesh frame with a diameter of 2 mm and a point welding interval of 200 mm, and the inclined webbing of the steel wire mesh frame with an inclination of 45 degrees upward; the horizontal webbing of the steel wire mesh frame and the inclined webbing of the steel wire mesh frame penetrate through the 25 mm thick perlite board, the 24 mm thick inner leaf mortar connecting layer, and the 200 mm thick polyphenyl insulation board with dovetail grooves, and then extend into the concrete horizontal projection of the shear wall by 60 mm.

[0023] The method for assembling the light steel composite truss bearing steel wire mesh frame mortar-perlite-polyphenyl composite shear wall with window holes includes the following contents:

[0024] First, the insulating shear wall is prepared by the following process:

[0025] Step 1: Process the light steel frame vertically and horizontally in the factory and weld them; bind the shear wall reinforcement cage, the coupling beam reinforcement cage, and install the grouting sleeve; purchase and cut and assemble the polyphenyl insulation board and the perlite board into the required size; prepare the inner and outer steel wire mesh, the steel wire mesh webbing, and the window frame mortar strip steel mesh with a force transmission steel plate welded thereon; and precast the horizontal countersunk bridge long self-tapping nail connecting piece and the combined countersunk bridge long self-tapping nail connecting piece.

[0026] Step 2: Install and position the light steel frame on the shear wall reinforcement cage; connect the inner steel wire mesh to the light steel frame through the U-shaped steel wire; space the polyphenyl insulation board and the perlite board by the thickness of the inner mortar layer between the light steel frame and the surface of the polyphenyl insulation board dovetail groove through the engineering plastic block, and position the polyphenyl insulation board and the perlite board and the outer steel wire mesh; bind the window frame mortar strip steel mesh with the inner and outer steel wire mesh, and align the mortar strip force transmission steel plate welded thereon with the window frame light steel frame.

[0027] Step 3: sequentially penetrate the steel wire mesh frame horizontal webbing and the steel wire mesh frame inclined webbing through the perlite board and the polyphenyl insulation board; point weld the two ends of the steel wire mesh frame webbing with the inner and outer steel wire mesh to form a steel wire mesh frame, and extend into the shear wall interior by a certain anchoring distance; sequentially penetrate the horizontal bridge self-tapping nail connecting piece and the combined bridge self-tapping nail connecting piece long self-tapping through the perlite board and the polyphenyl insulation board; self-tap and connect the light steel frame, and extend into the shear wall interior by a certain anchoring distance.

[0028] Step 4: pour the inner and outer steel wire mesh mortar surface layer and the window frame mortar strip with grooves, and maintain them; place the connecting steel plate in the window frame mortar strip groove, with its surface adhering to the mortar strip force transmission steel plate and the window frame light steel frame window hole side flange; use self-tapping nails to pass through the self-tapping nail holes of the connecting steel plate to self-tap and connect the mortar strip force transmission steel plate and the window frame light steel frame flange; use performance mortar to smooth the window frame mortar strip groove.

[0029] Fifth step, with steel wire mesh mortar - perlite - polystyrene insulation structure as the bottom mold, pouring shear wall concrete, and curing;

[0030] Then the prepared insulation shear wall assembly, the construction process is as follows:

[0031] Sixth step: install the prefabricated concrete floor to the upper part of the lower concrete shear wall, lay the mortar cushion; lap the left and right prefabricated shear wall horizontal reinforcement, bind the vertical construction reinforcement and tie reinforcement, and support the formwork inside the left and right adjacent wallboard vertical concrete post-cast strip, and the polystyrene insulation board outside the formwork serves as the formwork;

[0032] Seventh step: connect the lower shear wall and the beam top longitudinal stress reinforcement with the upper shear wall bottom grouting sleeve, and connect the polystyrene insulation board of the upper and lower wallboards and the post-smoothing mortar strip, pour grouting material into the sleeve through the reserved hole, bind additional steel mesh in the horizontal reserved strip, and use high-performance insulation mortar to smooth the horizontal mortar strip between the upper and lower wallboards; build concrete in the vertical post-cast strip of the left and right wallboard pieces, and bind additional steel mesh in the vertical reserved strip and use high-performance insulation mortar to smooth the vertical mortar strip between the left and right wallboards.

[0033] Eighth step: remove the formwork to form the post-smoothing mortar strip and grouting sleeve combined connection structure of the upper and lower wallboards, and the post-smoothing mortar strip and post-cast concrete combined connection structure of the left and right wallboards, paint the wallboard outer leaf mortar surface with waterproof paint, and paint the internal reinforced concrete shear wall with interior wall paint.

[0034] The beneficial effects produced by the above technical solutions are:

[0035] 1. Steel wire mesh mortar - perlite surface layer solves the poor fire resistance of traditional external insulation wall, and the perlite board has the advantages of fireproof and good heat insulation performance, which can effectively improve the fire resistance of the wall external insulation system and reduce the risk of fire accidents of the prefabricated insulation shear wall external wall system. The high-performance mortar layer has good structure, waterproof and weather-resistant performance.

[0036] 2. The light steel composite truss and load-bearing steel wire mesh structure effectively resists the downward shear deformation of the mortar layer under long-term loads, and controls this shear deformation within each floor, preventing it from propagating downwards. This solves the technical bottleneck problem of uncontrollable deformation of ultra-thick insulation layers under long-term loads. The horizontal tie rods in the light steel composite truss and load-bearing steel wire mesh effectively resist peeling forces perpendicular to the wall panel plane, such as wind suction, preventing the insulation layer from peeling off the wall panel surface. The thermally broken self-tapping screw connectors have high strength, good thermal insulation performance, and are easy to install, avoiding the cold bridging problem of traditional metal connectors, and significantly improving the tensile strength compared to traditional non-metallic connectors. The light steel frame and reinforced concrete shear wall have reliable anchoring capabilities, enhancing the integrity of the external insulation system and the shear wall.

[0037] 3. The self-tapping screw block connection nodes primarily serve to resist shear and tension, combating the self-weight of the external insulation structure and the peeling effect caused by wind suction. They effectively resist downward shear deformation of the mortar layer around the window frame under long-term loads, and can control this shear deformation within the current layer to prevent its downward transmission. The mortar strips and self-tapping screw block connection nodes of the window frame enhance the connection between the external wall insulation structure and the concrete shear wall at the window opening, improving the sealing and insulation performance of the window opening and enhancing the weather resistance of the insulation structure.

[0038] 4. The steel wire mesh mortar strips in the combined connection structure enhance the integrity of the wall panel mortar surface layer, solve the problem of joint connection in traditional insulation boards, improve the waterproof performance of the wall panels, and give the wall panel insulation structure good weather resistance. The insulation board can also be used as a formwork for the post-pouring strip, facilitating assembly and construction. Attached Figure Description

[0039] Figure 1 This is a structural schematic diagram of a shear wall;

[0040] Figure 2 yes Figure 1 Schematic diagram of section 1-1 in the figure;

[0041] Figure 3 yes Figure 1 Schematic diagram of section 2-2 in the figure;

[0042] Figure 4 yes Figure 1 Schematic diagram of section 3-3 in the figure;

[0043] Figure 5 yes Figure 1 Schematic diagram of section 4-4 in the figure;

[0044] Figure 6 yes Figure 1 Schematic diagram of section 5-5 in the figure;

[0045] Figure 7 yes Figure 1is a cross-sectional view of the 6-6 profile in FIG.

[0046] Figure 8 is Figure 1 is a cross-sectional view of the 7-7 profile in FIG.

[0047] Figure 9 is a cross-sectional view of the connection state and structure of the combined countersunk broken bridge long self-tapping nail connector;

[0048] Figure 10 is Figure 9 is a cross-sectional view of the 1-1 profile in FIG.

[0049] Figure 11 is a cross-sectional view of the connection state and structure of the horizontal countersunk broken bridge long self-tapping nail connector;

[0050] Figure 12 is Figure 11 is a cross-sectional view of the 2-2 profile in FIG.

[0051] Figure 13 is a cross-sectional view of the connection state of the horizontal web wire of the steel wire mesh frame and the diagonal web wire of the steel wire mesh frame;

[0052] Figure 14 is Figure 13 is a cross-sectional view of the 3-3 profile in FIG.

[0053] Figure 15 is a cross-sectional view of the top and bottom of the window;

[0054] Figure 16 is another view of the cross-sectional structure of the top and top of the window;

[0055] Figure 17 is a cross-sectional view of the left and right sides of the window;

[0056] Figure 18 is another view of the cross-sectional structure of the left and right sides of the window;

[0057] Figure 19 is a cross-sectional view of the connection structure of the upper and lower shear walls;

[0058] Figure 20 is another cross-sectional view of the connection structure of the upper and lower shear walls;

[0059] Figure 21 is a cross-sectional view of the connection structure of the left and right shear walls;

[0060] In the diagram: 1. Concrete shear wall; 2. Shear wall distributed reinforcement; 3. Shear wall vertical connecting reinforcement; 4. Tie reinforcement; 5. Grouting sleeve; 6. Coupling beam; 7. Coupling beam reinforcement cage; 8. Coupling beam vertical connecting reinforcement; 9. Light steel frame vertical C-shaped steel; 10. Light steel frame horizontal C-shaped steel; 11. Window frame light steel frame; 12. Inner leaf mortar connection layer; 13. Inner leaf mortar layer wire mesh; 14. U-shaped steel wire; 15. Polystyrene insulation board; 16. Perlite board; 17. Outer leaf mortar layer; 18. Outer leaf mortar layer wire mesh; 19. Window frame. 20. Mortar strip; 21. Window frame mortar strip wire mesh; 22. Mortar strip force transmission steel plate; 23. Connecting steel plate; 24. Self-tapping screw; 25. Horizontal countersunk thermal break long self-tapping screw connector; 26. Combined countersunk thermal break long self-tapping screw connector; 27. Horizontal web wire of wire mesh frame; 28. Diagonal web wire of wire mesh frame; 29. ​​Outer leaf wire mesh cement mortar layer post-applied strip; 30. Cement-based mortar; 31. Polystyrene insulation board tongue and groove; 32. Precast concrete floor slab; 33. Shear wall mortar cushion layer; 34. Grouting material; 35. Concrete post-pouring strip. Detailed Implementation

[0061] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0062] This invention proposes a prefabricated lightweight steel composite truss structure with window openings to support a steel wire mesh mortar-perlite-polystyrene composite shear wall, suitable for the exterior walls of prefabricated concrete shear wall structures in ultra-low energy consumption buildings with window openings. The steel wire mesh mortar surface layer-perlite structure is thin, lightweight, and has good fire resistance and thermal insulation performance. The high-performance mortar layer with a strength grade of not less than M20 has excellent structural, waterproof, and weather-resistant properties. The truss, composed of the steel wire mesh mortar layer, thermally broken self-tapping screw web members, and frame lightweight steel chord members, can support the weight of the outer mortar, fireproof, and thermal insulation layers of the shear wall, effectively limiting the downward shear deformation of the mortar layer under long-term loads. A window frame mortar strip reinforcement structure is used at the window openings. The window frame mortar strip is prefabricated integrally with the outer steel wire mesh mortar surface layer and connected to the concrete shear wall using a self-tapping screw block connection structure. The thickness of the polystyrene insulation layer can be selected according to the local climate conditions to ensure the thermal insulation performance of the exterior wall.

[0063] like Figures 1-21 As shown, the shear wall in this invention mainly includes the following structures:

[0064] Steel wire mesh mortar-perlite surface layer, each 25mm thick steel wire mesh mortar layer and perlite fireproof layer, the weight is only 1 / 2 of 50mm thick concrete protective layer, and the high-performance mortar layer with strength grade not less than M20 has good structure, waterproof, weather resistance.

[0065] Load-bearing steel wire mesh frame, composed of outer steel wire mesh, inner steel wire mesh, horizontal web wire with 200*200mm point welding interval and 2mm diameter, and oblique upward 45-degree web wire, the horizontal web wire and oblique upward 45-degree web wire penetrate 25mm thick perlite layer, 5mm thick cement mortar adhesive tape, 200 thick polyphenyl layer with dovetail groove, and then extend into the concrete horizontal projection of shear wall 60mm.

[0066] Light steel frame, composed of C-shaped steel welded with vertical and horizontal interval not greater than 800, the C-shaped steel of light steel frame is point-welded with steel wire mesh and C-shaped steel at the position with net distance of 10mm from inner steel wire mesh, the vertical C-shaped steel is point-welded with horizontal distribution steel wire of steel wire mesh, the horizontal C-shaped steel is point-welded with vertical distribution steel wire of steel wire mesh, and the interval of horizontal and vertical point-welding is not greater than 200mm. The light steel frame C-shaped steel is arranged around the window opening to strengthen the stress performance of window frame and the connection between the window opening wallboard external thermal insulation structure and concrete shear wall.

[0067] Light steel combined truss, composed of steel wire mesh mortar layer, broken bridge self-tapping nail web, and frame light steel chord, the light steel combined truss is composed of 25mm thick steel wire mesh mortar layer strip outer chord, light steel frame vertical C-shaped steel inner chord, horizontal web of diameter not less than 5mm of sunken head broken bridge long self-tapping nail, and oblique upward 45-degree web; the sunken head broken bridge long self-tapping nail penetrates sunken head fiber composite connecting piece with sunken size not less than 50, drills through perlite-polyphenyl insulation layer, and connects C-shaped light steel; the light steel combined truss can effectively resist the downward shear deformation of mortar layer under long-term load, and can control the shear deformation and does not transmit downward to each floor.

[0068] Window frame self-tapping nail set block combined connection structure, the connection node of reinforced mortar strip of external thermal insulation structure at window frame and light steel frame of concrete shear wall window frame. The window frame reinforced mortar strip is configured with Φ4 steel mesh with 200mm interval, and the transmission steel plate is welded on the side of steel mesh close to the concrete shear wall window hole, the mortar strip transmission steel plate and the outer side flange of C-shaped steel of shear wall window frame light steel frame are connected through the connecting steel plate self-tapping nail, so as to connect the window frame mortar strip of composite external thermal insulation wall and the concrete shear wall window frame. The self-tapping nail set block connection node mainly plays the role of resisting shear and tension to resist the peeling effect caused by the dead weight and wind suction of external thermal insulation structure.

[0069] The combined connection structure of the fabricated shear wall is that the upper and lower concrete shear wall plates are assembled by using steel sleeve, the left and right shear walls are assembled by using post-cast concrete strip; the connection between the upper and lower and the left and right light steel combined truss supporting the steel mesh frame mortar-pearlite-polyphenyl thermal insulation system is the butt joint between the pearlite layers, the tongue and groove connection between the polyphenyl layers, the 150mm post-troweling mortar strip between the adjacent two steel mesh mortar layers, and the additional reinforcing steel mesh in the post-troweling mortar strip area.

[0070] The specific structure and connection relationship of each structure are as follows:

[0071] The fabricated concrete shear wall is composed of the concrete shear wall 1, window hole and the coupling beam 6 at the upper part of the window hole. The shear wall distribution steel bars 2, shear wall vertical connection steel bars 3, tie steel bars 4, coupling beam steel bar cage 7 and coupling beam vertical connection steel bars 8 are bound to form the shear wall steel bar cage. The lower part of the shear wall vertical connection steel bars 3 is connected with the grouting sleeve 5. The connection length of the shear wall vertical connection steel bars 3 and the coupling beam vertical connection steel bars 8 protruding from the top of the wall plate is connected with the fabricated concrete floor 31 and the grouting sleeve 5 of the upper layer. The light steel frame is arranged outside the shear wall distribution steel bars 2. After pouring the concrete, the fabricated grouting sleeve concrete shear wall with light steel frame is formed. The concrete shear wall 1 is the fabricated reinforced concrete shear wall. The shear wall distribution steel bars 2 adopt double-row distribution steel bars: the horizontal distribution steel bars are Φ10 with a spacing of 200mm, the vertical distribution steel bars are Φ10 with a spacing of 200, the net protection layer thickness is 20mm, and the Φ6 tie steel bars 4 are arranged at intervals of 400mm. The grouting sleeve 5 is used for assembly and connection. Sixteen grouting sleeves 5 are arranged at the bottom of the wall plate with a spacing of 600. Sixteen Φ16 steel bars arranged symmetrically are used as the upper and lower shear wall vertical connection steel bars 3 and the coupling beam vertical connection steel bars 8. The vertical distribution steel bars in the shear wall distribution steel bars 2 do not protrude from the wall plate. The top of the shear wall longitudinal connection steel bars 3 and the coupling beam vertical connection steel bars 8 protrudes from the wall plate by 240mm and is connected with the fabricated concrete floor 31 and the upper wall plate. In the range of 300mm above the grouting sleeve 5 at the bottom of the wall plate, the total densification height is 500mm. The Φ10@100 horizontal distribution steel bars of the shear wall distribution steel bars 2 are densely arranged. The horizontal distribution steel bars protrude from the wall plate by 280mm at both ends and are overlapped with the adjacent wall plate after post-cast concrete post-cast strip 34 is poured.

[0072] The light steel frame is welded by the light steel frame vertical C-shaped steel 9 and the light steel frame horizontal C-shaped steel 10. The horizontal and vertical C-shaped steels at the window frame edge are welded to form the window frame light steel frame 11. The light steel frame web is provided with light steel frame self-tapping screw holes, and the flange is provided with light steel frame flange grooves.

[0073] The inner leaf inner steel mesh mortar layer is composed of the inner leaf mortar connecting layer 12 poured by the inner leaf mortar layer steel mesh 13. The U-shaped steel wire 14 flange is spot-welded with the inner leaf mortar layer steel mesh 13, and the web is welded with the light steel frame.

[0074] Steel mesh frame mortar-perlite-polyphenyl heat insulation structure: composed of steel mesh mortar surface layer of polyphenyl heat insulation board 15 with dovetail groove, perlite board 16 and outer leaf mortar layer 17 and outer leaf mortar layer steel mesh 18, polyphenyl heat insulation board dovetail groove is mechanically engaged with inner leaf mortar connecting layer, and steel mesh frame mortar-perlite-polyphenyl heat insulation structure is connected with fabricated concrete shear wall through light steel combined truss and load-bearing steel mesh frame.

[0075] Load-bearing steel mesh frame: composed of outer leaf mortar layer steel mesh 18, inner leaf mortar layer steel mesh 13 spot-welded steel mesh frame horizontal web 26 and steel mesh frame inclined web 27, steel mesh frame horizontal web 26 and steel mesh frame inclined web 27 penetrate through perlite board 16 and polyphenyl heat insulation board 15 and extend into shear wall concrete. Thus, the steel mesh frame mortar-perlite-polyphenyl heat insulation structure and the concrete shear wall are pulled together.

[0076] Light steel combined truss: truss composed of steel mesh frame outer mortar surface layer of outer leaf mortar layer 17 and outer leaf mortar layer steel mesh 18, horizontal countersunk bridge long self-tapping nail connecting piece 24 and combined countersunk bridge long self-tapping nail connecting piece 25 chord. The light steel combined truss is composed of outer mortar surface layer 17 light steel frame vertical C-shaped steel 9 and light steel frame horizontal C-shaped steel 10, which are welded by C-shaped steel with vertical and horizontal spacing not greater than 800. The light steel frame is spot-welded by U-shaped steel wire 14 with diameter of 2 mm at a position with a clear distance of 10 mm from the inner leaf mortar layer steel mesh 13 to connect the steel mesh and the light steel frame. The light steel frame vertical C-shaped steel 9 is spot-welded with the horizontal distribution steel wire of the inner leaf mortar layer steel mesh 13, and the light steel frame horizontal C-shaped steel 10 is spot-welded with the vertical distribution steel wire of the inner leaf mortar layer steel mesh 13. The horizontal and vertical spot-welding spacing is not greater than 200 mm. The light steel frame has a cross section with a height of 70 mm, a width of 50 mm and a thickness not less than 2 mm. The light steel frame has a light steel frame flange groove with a width of 140 mm and a height of 60 mm, thereby forming a convex steel segment with a clear distance of 140 mm, a height of 60 mm and a width of 60 mm. The light steel frame vertical C-shaped steel 9 convex steel segment is anchored into the shear wall concrete 1 at a position with a clear distance of 10 mm from the outer side distribution steel wire between the horizontal and vertical distribution steel bars of the shear wall. The clear distance between the inner leaf mortar layer steel mesh 13 and the outer side distribution steel bar of the shear wall is 20 mm. After pouring the shear wall concrete, the light steel frame 10 mm high section with the convex steel segment is embedded in the shear wall concrete 10 mm, and the convex steel segment is anchored in the shear wall concrete 60 mm. In order to facilitate the self-tapping of the C-shaped steel web of the light steel frame, a circular hole smaller than the diameter of the self-tapping nail is opened on the web of the light steel frame vertical C-shaped steel 9 and the light steel frame horizontal C-shaped steel 10, so as to facilitate the self-tapping of the self-tapping nail.

[0077] The window frame light steel frame 11 is arranged along the light steel frame around the window hole of the concrete shear wall 1, the vertical C-shaped steel 9 is arranged along the left and right edges of the window frame, the horizontal C-shaped steel 10 is arranged along the upper and lower edges of the window frame, the wing flange outer surface of the window frame light steel frame 11 near the driving side is flush with the surface of the window frame concrete, the inner side of the wing flange is pasted with a wooden block, the self-tapping screw passes through the self-tapping screw hole on the connecting steel plate 22, the self-tapping screw connects the wing flange of the window frame light steel frame 11, and the self-tapping screw is drilled into the wooden block in the inner side of the wing flange. The outer chord of the steel wire mesh mortar layer strip formed by the outer leaf mortar layer steel wire mesh 18, the inner chord of the light steel frame vertical C-shaped steel 9 and the light steel frame horizontal C-shaped steel 10, the web of the horizontal sunken bridge long self-tapping screw connector 24 and the chord of the combined sunken bridge long self-tapping screw connector 25, and the combined sunken bridge long self-tapping screw connector 25 are connected; the sunken bridge self-tapping screw connector drills through the perlite plate 16 and the polystyrene insulation plate 15 to connect the light steel frame vertical C-shaped steel 9 and the light steel frame horizontal C-shaped steel 10.

[0078] The window frame self-tapping screw set block connection structure: the window frame mortar strip 19 is provided with the window frame mortar strip steel wire mesh 20, the window frame mortar strip steel wire mesh 20 is overlapped with the outer leaf mortar layer steel wire mesh 18 and the inner leaf mortar layer steel wire mesh 13, the mortar strip force transmission steel plate 21 is welded on the window frame mortar strip steel wire mesh 20, the mortar strip force transmission steel plate 21 is butted with the C-shaped steel of the window frame light steel frame 11, the connecting steel plate 22 with self-tapping screw holes is placed in the groove of the window frame mortar strip 19, and the self-tapping screw 23 is used to pass through the connecting steel plate 22 to connect the mortar strip force transmission steel plate 21 and the C-shaped steel wing flange of the window frame light steel frame 11. High-performance mortar is used to smooth the groove of the window frame mortar strip 19 to form a self-tapping screw set block node.

[0079] The combined connection structure includes the upper and lower shear wall distribution steel bars 2 and the grouting sleeve 5, the grouting material 33 injected into the grouting sleeve 5, the left and right shear wall concrete post-cast strip 34, the insulation layer connection structure formed by the polystyrene insulation plate rabbet 30 and the cement-based mortar 29, and the connection structure of the outer leaf mortar layer steel wire mesh 18 of the upper and lower wall plates and the left and right wall plates.

[0080] The coupling beam 6 is a window hole top connection structure of the concrete shear wall 1, the length thereof is equal to the width of the window hole, the cross-sectional height is the distance from the upper edge of the window hole to the top of the wall plate concrete, and the cross-sectional width is equal to the thickness of the wall. Six Φ10 longitudinal steel bars and Φ8 hoop steel bars with a spacing of 150mm are arranged in the coupling beam 6. The longitudinal steel bars and the hoop steel bars form a coupling beam steel bar cage 7. The coupling beam vertical connecting steel bars 8 with a diameter of Φ16 are arranged between the longitudinal steel bars of the coupling beam 6 and are connected with the grouting sleeve 5 of the upper wall plate. The horizontal C-shaped steel of the window frame light steel frame 11 is arranged at the bottom of the coupling beam 6, that is, the upper edge of the window hole, and the coupling beam 6 is provided with two sections of light steel frame vertical C-shaped steel 9 along the length direction.

[0081] The inner leaf mortar connecting layer 12 and the inner leaf mortar layer steel mesh 13 are the mortar layer of the dovetail groove of the polyphenyl insulation board and the concrete 1 of the shear wall. The net spacing between the inner leaf mortar layer steel mesh 13 and the polyphenyl insulation board with dovetail groove 15 is 10 mm. A 14 mm thick mortar with a rough surface is used to cover the inner leaf mortar layer steel mesh 13 and the gap between the polyphenyl insulation board dovetail groove; the U-shaped steel wire 14 is the connection structure of the inner leaf mortar layer steel mesh 13 and the light steel frame, the bending flange is spot welded with the steel wire of the inner leaf mortar layer steel mesh 13, and the web is welded with the vertical C-shaped steel 9 and the horizontal C-shaped steel 10 of the light steel frame.

[0082] The polyphenyl insulation board 15 is a polyphenyl insulation board with dovetail groove at the connection between the inner side and the inner leaf mortar connecting layer 12. The standard thickness is 200 mm, and the thickness of the insulation board can be adjusted according to the climate conditions of the building region.

[0083] The perlite board 16 is a fireproof layer of the wallboard, and the thickness is 25 mm.

[0084] The outer leaf mortar layer 17 is a 25 mm thick mortar layer with a strength not less than C20 on the outer side of the wallboard. The outer leaf mortar layer 17 is embedded with an outer leaf mortar layer steel mesh 18 with a diameter of 2 mm and a spacing of 50 mm. The mortar net protection layer of the outer leaf mortar layer steel mesh 18 is 10 mm.

[0085] The window frame mortar strip 19 is a window frame edge sealing concrete mortar strip connecting the inner leaf mortar connecting layer 12 and the outer leaf mortar layer 17. The thickness is 50 mm, the width is the distance from the outer leaf mortar layer 17 to the outer surface of the concrete shear wall 1, and the inside is configured with a window frame mortar strip steel mesh 20 with a diameter of 4 mm and a spacing of 200 mm. The window frame mortar strip steel mesh 20 is embedded in the inner leaf mortar connecting layer 12 and the outer leaf mortar layer 17, and the inner leaf mortar layer steel mesh 13 and the outer leaf mortar layer steel mesh 18 are overlapped and tied. The mortar strip force transmission steel plate 21 with a length of 220 mm and a width of 80 mm is welded with 2 distribution steel bars of the window frame mortar strip steel mesh 20 along the outer direction of the shear wall plane. The outer side of the steel plate is welded with the distribution steel bars in the parallel direction of the shear wall plane to strengthen the anchoring performance of the steel plate and the window frame mortar strip 19. The window frame mortar strip 19 has a groove at the mortar strip force transmission steel plate 21. The mortar strip force transmission steel plate 21 is butt jointed with the window frame light steel frame 11. The self-tapping screw 23 passes through the self-tapping screw hole of the connecting steel plate 22, and the self-tapping drill is inserted into the mortar strip force transmission steel plate 21 and the window frame light steel frame 11. Finally, the groove of the window frame mortar strip 19 at the mortar strip force transmission steel plate 21 is filled flat with high-performance mortar.

[0086] Horizontal sunk bridge long self-tapping nail connecting piece 24 and combined sunk bridge long self-tapping nail connecting piece 25 are web members of light steel composite truss, which are connecting pieces connecting 25mm thick steel mesh mortar layer strip outer chord and light steel frame inner chord. Horizontal sunk bridge long self-tapping nail connecting piece 24 and combined sunk bridge long self-tapping nail connecting piece 25 are sunk into a sunk fiber composite connecting piece with a sunk size of not less than 50, drill through perlite-polyphenyl insulation layer, and self-tapping connecting light steel frame. The sunk fiber composite connecting piece is a connecting piece of one forming with a thick 3mm*60mm*60mm outer square plate, a 4mm*46mm*46mm square plate with a recess, a hollow circular rod with a central outer diameter of 14mm and an inner diameter of 10mm and a length of 50mm, and a hollow circular rod with a central outer diameter of 14mm and an inner diameter of 6mm and a length of 20mm. The angle between the square plate and the hollow circular rod of the sunk fiber composite connecting piece of the horizontal sunk bridge long self-tapping nail connecting piece 24 is 90 degrees, and the angle between the rectangular plate and the hollow circular rod of the sunk fiber composite connecting piece of the combined sunk bridge long self-tapping nail connecting piece 25 is divided into 90 degrees through the horizontal long self-tapping nail and 45 degrees through the oblique upward long self-tapping nail. The steel self-tapping nail has a nail cap diameter of 10mm, a nail rod of 6mm, and a length with threads. The horizontal sunk bridge long self-tapping nail connecting piece 24 is arranged at the top and bottom of the vertical C-shaped steel 9 of the light steel frame, and the combined sunk bridge long self-tapping nail connecting piece 25 is arranged in the middle. The horizontal sunk bridge long self-tapping nail connecting piece 24 is arranged on the transverse C-shaped steel 10 of the light steel frame with a spacing of not more than 800mm.

[0087] Steel mesh frame horizontal web wire 26 and steel mesh frame oblique web wire 27 are supporting steel wires connecting the inner leaf mortar layer steel mesh 13 and the outer leaf mortar layer steel mesh 18. The steel mesh frame is composed of the inner leaf mortar layer steel mesh 13, the outer leaf mortar layer steel mesh 18, the steel mesh frame horizontal web wire 26 with a diameter of 2mm and a spacing of 200mm, and the steel mesh frame oblique web wire 27 with an oblique upward angle of 45 degrees. The steel mesh frame horizontal web wire 26 and the steel mesh frame oblique web wire 27 penetrate the 25mm thick perlite plate 16 and the 24mm thick inner leaf mortar connecting layer 12, and then extend into the shear wall concrete 1 horizontal projection 60mm after bonding with the 200 thick polyphenyl insulation board 15 with dovetail grooves.

[0088] Outer leaf steel mesh cement mortar layer back plaster strip 28 is a connecting structure of the outer steel mesh mortar layer of the wallboard. The outer mortar surface layer back plaster strip is reserved at the upper, lower, left and right ends of the prefabricated wallboard with a width of 75mm. After the wallboard is hoisted and positioned, the outer steel mesh mortar layer connecting position of the adjacent wallboard is 150mm wide back plaster layer, with built-in 50mm spacing, 2mm diameter reinforcing steel mesh, and coated with high-performance insulation mortar. The outer leaf steel mesh cement mortar layer back plaster strip 28 ensures the integrity of the wallboard connecting joint, and has good waterproofness to improve the weather resistance of the wallboard.

[0089] Cement-based mortar 29, an inorganic bonding material applied to the tongue-and-groove 30 of the polystyrene insulation board at the wallboard connection position, can enhance the integrity and waterproof performance of the polystyrene insulation board tongue-and-groove 30.

[0090] Fabricated concrete floor slab 31, a prefabricated concrete floor slab between the upper and lower fabricated shear walls, is connected to the shear wall concrete 1 through the shear wall vertical connection steel bars 3, and a shear wall mortar cushion layer 32 is laid between the fabricated concrete floor slab 31 and the upper wallboard.

[0091] Grouting material 33, a connecting material for the lower shear wall vertical connection steel bars 3, the beam vertical connection steel bars 8, and the upper wallboard grouting sleeve 5. After the upper wallboard assembly is completed, the shear wall vertical connection steel bars 3 and the beam vertical connection steel bars 8 are inserted into the upper wallboard grouting sleeve 5, and the grouting material 33 is injected into the grouting hole to complete the connection of the upper and lower shear wall vertical connection steel bars 3.

[0092] Concrete post-poured strip 34, a left and right adjacent wallboard assembly connection structure, horizontal distribution steel bars protrude 280mm from the left and right ends of the wallboard and overlap with the adjacent wallboard after post-pouring concrete post-poured strip 34 by binding vertical structural steel bars and tie steel bars, completing the assembly connection of the left and right wallboards.

[0093] The method for assembling a fabricated light steel composite truss with window hole supporting a steel mesh frame mortar-perlite-polystyrene composite shear wall is as follows:

[0094] First, prepare the insulation shear wall, the process is as follows:

[0095] Step 1, process light steel frame vertical and horizontal C-shaped steel in the factory and weld, bind shear wall steel reinforcement cage, beam steel reinforcement cage, install grouting sleeve, purchase polystyrene insulation board and perlite board, and cut and assemble them into the required size; prepare internal and external steel mesh, steel mesh frame web, and window frame mortar strip steel mesh with welded force transmission steel plate, precast horizontal countersunk bridge long self-tapping nail connectors and combined countersunk bridge long self-tapping nail connectors;

[0096] Step 2, install and position the light steel frame on the shear wall steel reinforcement cage, connect the internal steel mesh to the light steel frame through U-shaped steel wire, and position the polystyrene insulation board, perlite board, and external steel mesh by spacing the internal mortar layer thickness between the light steel frame and the polystyrene insulation board dovetail groove surface with engineering plastic or other spacers; bind the window frame mortar strip steel mesh with the internal and external leaf steel mesh, and align the welded mortar strip force transmission steel plate on the window frame light steel frame;

[0097] Third step, the horizontal web wire of steel wire mesh frame and the inclined web wire of steel wire mesh frame are sequentially penetrated through the perlite plate and the polystyrene insulation plate, the two ends of the web wire of steel wire mesh frame are spot-welded with the inner and outer steel wire mesh to form a steel wire mesh frame, and the steel wire mesh frame extends into the shear wall by a certain anchoring distance; the horizontal broken bridge self-tapping nail connecting piece and the combined broken bridge self-tapping nail connecting piece long self-tapping are sequentially penetrated through the perlite plate and the polystyrene insulation plate, the self-tapping connects the light steel frame, and extends into the shear wall by a certain anchoring distance;

[0098] Fourth step, pouring the inner and outer steel wire mesh mortar surface layer and the window frame mortar strip with grooves, and curing; placing the connecting steel plate in the groove of the window frame mortar strip, the surface of the connecting steel plate is attached to the mortar strip force transmission steel plate and the one side flange of the window frame light steel frame window hole, the self-tapping nail is penetrated through the self-tapping nail hole of the connecting steel plate, and the mortar strip force transmission steel plate and the window frame light steel frame flange are connected by self-tapping; the performance mortar is used to smooth the groove of the window frame mortar strip;

[0099] Fifth step, using the steel wire mesh mortar-perlite-polystyrene insulation structure as a base mold, pouring the shear wall concrete, and curing;

[0100] Then the prepared insulation shear wall is assembled, and the construction process is as follows:

[0101] Sixth step: install the prefabricated concrete floor to the upper part of the lower concrete shear wall and lay the mortar cushion; overlap the left and right prefabricated shear walls horizontally, bind the vertical structural steel bars and tie steel bars, and place the formwork on the inner side of the vertical concrete post-poured strip of the left and right adjacent wall panels, and the polystyrene insulation plate serves as a formwork on the outer side;

[0102] Seventh step: connect the longitudinal load-bearing steel bars at the top of the lower shear wall and the coupling beam with the grouting sleeves at the bottom of the upper shear wall, connect the polystyrene insulation plates of the upper and lower wall panels and the post-poured mortar strips by jointing, pour grouting material into the sleeves through the reserved holes, bind additional steel wire mesh in the horizontal reserved strips and smooth the horizontal mortar strips between the upper and lower wall panels with high-performance insulation mortar; build concrete in the vertical post-poured strips of the left and right wall panels, bind additional steel wire mesh in the vertical reserved strips and smooth the vertical mortar strips between the left and right wall panels with high-performance insulation mortar;

[0103] Eighth step: remove the formwork to form the post-poured mortar strip and grouting sleeve combined connection structure of the upper and lower wall panels, and the post-poured mortar strip and post-poured concrete combined connection structure of the left and right wall panels, paint the outer leaf mortar surface layer of the wall panel with waterproof paint, and paint the inner steel reinforced concrete shear wall of the wall panel with interior wall paint.

[0104] The above merely describes preferred embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make equivalent replacements or changes within the technical scope disclosed by the present application and according to the technical solutions and inventive concept of the present application, which should be covered within the protection scope of the present application.

Claims

1. A prefabricated light steel composite truss supporting a steel wire mesh frame mortar-perlite-polystyrene composite shear wall with window openings, characterized in that... include: The prefabricated concrete shear wall consists of a concrete shear wall, window openings, and connecting beams above the window openings. The shear wall distribution reinforcement, vertical connecting reinforcement, tie reinforcement, and connecting beam reinforcement cage are tied together to form the shear wall reinforcement cage. The lower part of the vertical connecting reinforcement of the shear wall is connected to a grouting sleeve. The parts of the vertical connecting reinforcement of the shear wall extending from the top of the wall panel and the parts of the vertical connecting reinforcement of the connecting beam extending from the top of the wall panel are connected to the prefabricated concrete floor slab and the grouting sleeve of the upper floor. The light steel frame is arranged on the outside of the shear wall reinforcement. It is welded together by vertical C-shaped steel bars and horizontal C-shaped steel bars. The horizontal and vertical C-shaped steel bars of the window frame are welded together to form the window frame light steel frame. The web of the light steel frame has self-tapping screw holes and the flange has flange grooves. Inner leaf inner wire mesh mortar layer: It is composed of inner leaf mortar layer wire mesh and inner leaf mortar connecting layer. The flange of U-shaped steel wire is spot welded to the inner leaf mortar layer wire mesh, and the web of U-shaped steel wire is welded to the light steel frame. The steel wire mesh mortar-perlite-polystyrene insulation structure consists of a polystyrene insulation board with dovetail grooves, a perlite board, an outer leaf mortar layer, and an outer leaf mortar layer steel wire mesh. The dovetail grooves on the polystyrene insulation board are mechanically interlocked with the inner leaf mortar connecting layer. The load-bearing steel wire mesh frame consists of an outer leaf mortar layer steel wire mesh, an inner leaf mortar layer steel wire mesh, spot-welded horizontal webs, and diagonal webs. The horizontal and diagonal webs penetrate the perlite board and polystyrene insulation board and extend into the shear wall concrete, thereby achieving the connection between the steel wire mesh frame mortar-perlite-polystyrene insulation structure and the concrete shear wall. The light steel composite truss consists of an outer chord of a steel wire mesh mortar layer strip composed of an outer mortar surface layer and an outer leaf mortar layer steel wire mesh, an inner chord of the vertical C-shaped steel of the light steel frame and the horizontal C-shaped steel of the light steel frame, web members of horizontal countersunk thermal break long self-tapping screw connectors, and chord members of combined countersunk thermal break long self-tapping screw connectors; the thermal break self-tapping screw connectors drill through the perlite board and polystyrene insulation board and then self-tappingly connect the vertical C-shaped steel of the light steel frame and the horizontal C-shaped steel of the light steel frame; The window opening features a self-tapping screw cluster connection structure. A steel wire mesh is embedded within the window frame mortar strip. This steel wire mesh overlaps with both the outer and inner mortar layer wire meshes. A force-transmitting steel plate is welded to the wire mesh. This force-transmitting steel plate is then connected to the C-shaped steel of the light steel frame. A connecting steel plate with self-tapping screw holes is placed within the groove of the window frame mortar strip. Self-tapping screws pass through the connecting steel plate and self-tap the force-transmitting steel plate and the C-shaped steel flange of the light steel frame. High-performance mortar is used to smooth the groove of the window frame mortar strip, forming the self-tapping screw cluster node. The combined connection structure includes a shear wall connection structure consisting of shear wall distributed reinforcement in the upper and lower shear walls, grouting material in the grouting sleeve, and post-cast concrete strips in the left and right shear walls; it also includes an insulation layer connection structure consisting of polystyrene insulation board tongue and groove coated with cement-based mortar, and a connection structure for the outer leaf steel wire mesh cement mortar layer post-cast strips connecting the upper, lower, left, and right wall panels; the outer leaf steel wire mesh cement mortar layer post-cast strips are the connection structure for the upper, lower, left, and right outer steel wire mesh mortar layers on the wall panels; the precast wall panels upper, lower, left, and right outer steel wire mesh mortar layers are connected by these strips. A 75mm wide outer mortar surface layer is reserved at the right end for the subsequent plastering strip. After the wall panel is hoisted and positioned, the connection position of the outer wire mesh mortar layer of the upper and lower or left and right adjacent wall panels is a 150mm wide post-plastering layer, with an inner 50mm spacing, 2mm diameter reinforcing wire mesh, and coated with high-performance thermal insulation mortar. The concrete post-poured strip is the assembly connection structure of the left and right adjacent wall panels. The horizontally distributed reinforcing bars protrude 280mm from the left and right ends of the wall panel, overlap with the adjacent wall panel, and tie the vertical structural bars and tie bars before pouring the concrete post-poured strip to complete the assembly connection of the left and right wall panels.

2. The prefabricated light steel composite truss supporting steel wire mesh mortar-perlite-polystyrene composite shear wall according to claim 1, characterized in that, The concrete shear wall is a prefabricated reinforced concrete shear wall. The shear wall reinforcement uses double-row reinforcement; the horizontal reinforcement has a diameter of 10mm and a spacing of 200mm, and the vertical reinforcement has a diameter of 10mm and a spacing of 200mm. The net protective layer thickness is 20mm, and tie bars with a diameter of 6mm are placed at 400mm intervals. Grouting sleeves are used for assembly and connection; 16 grouting sleeves are installed at 600mm intervals at the bottom of the wall panel, and 16 symmetrically arranged 16mm diameter steel bars serve as the vertical connecting reinforcement between the upper and lower shear walls. And the vertical connecting reinforcement of the coupling beam; the vertical distribution reinforcement of the shear wall does not protrude from the wall panel, the top of the longitudinal connecting reinforcement of the shear wall and the vertical connecting reinforcement of the coupling beam protrudes 240mm from the wall panel and connects with the precast concrete floor slab and the upper wall panel; within the grouting sleeve at the bottom of the wall panel and within 300mm above it, the total densification height is 500mm, and the horizontal distribution reinforcement of the shear wall with a diameter of 10mm and a spacing of 100mm is densified. The horizontal distribution reinforcement protrudes 280mm from both ends of the wall panel and overlaps with the adjacent wall panel before the concrete is poured into the post-cast strip.

3. The prefabricated light steel composite truss supporting steel wire mesh mortar-perlite-polystyrene composite shear wall according to claim 1, characterized in that, The connecting beam is a connecting structure at the top of the window opening of the concrete shear wall. Its length is equal to the width of the window opening, its cross-sectional height is the distance from the top edge of the window opening to the top of the concrete wall panel, and its cross-sectional width is equal to the wall thickness. It is equipped with 6 longitudinal steel bars with a diameter of 10mm and stirrups with a diameter of 8mm and a spacing of 150mm. The longitudinal steel bars and stirrups form the connecting beam reinforcement cage. Vertical connecting steel bars with a diameter of 16mm are arranged between the longitudinal steel bars of the connecting beam and connected to the grouting sleeve of the upper wall panel. At the bottom of the connecting beam, that is, at the top edge of the window opening, there is a transverse C-shaped steel of the window frame light steel grid. Two sections of vertical C-shaped steel of the light steel grid are arranged at equal intervals along the length of the connecting beam.

4. The prefabricated light steel composite truss supporting steel wire mesh mortar-perlite-polystyrene composite shear wall according to claim 1, characterized in that, The vertical and horizontal C-shaped steel sections of the light steel frame are welded together from C-shaped steel sections with a vertical and horizontal spacing of no more than 800mm. The light steel frame is connected to the inner leaf mortar layer wire mesh by spot welding 2mm diameter U-shaped steel wires at a 10mm clear distance. The vertical C-shaped steel sections are spot welded to the horizontally distributed wires of the inner leaf mortar layer wire mesh, and the horizontal C-shaped steel sections are spot welded to the vertically distributed wires of the inner leaf mortar layer wire mesh. The spacing between the horizontal and vertical spot welds is no more than 200mm. The light steel frame has a cross-section of 70mm high, 50mm wide, and a plate thickness of no less than 2mm. The light steel frame has a 140mm wide and 60mm high flange groove, thus forming... The protruding steel segments have a clear spacing of 140mm, a height of 60mm, and a width of 60mm. The vertical C-shaped steel protruding segments of the light steel frame are anchored into the shear wall concrete at a position 10mm away from the outer distributed reinforcement between the horizontal and vertical distributed reinforcement of the shear wall. The clear spacing between the inner leaf mortar layer steel wire mesh and the outer distributed reinforcement of the shear wall is 20mm. After the shear wall concrete is poured, the 10mm full-height section of the light steel frame with the protruding steel segments is embedded 10mm into the shear wall concrete, and the protruding steel segments are anchored 60mm into the shear wall concrete. To facilitate the connection of self-tapping screws to the C-shaped steel web of the self-tapping light steel frame, circular holes smaller than the diameter of the self-tapping screws are opened on the webs of the vertical C-shaped steel and the horizontal C-shaped steel of the light steel frame to facilitate the passage of the self-tapping screws.

5. The prefabricated light steel composite truss supporting steel wire mesh mortar-perlite-polystyrene composite shear wall according to claim 1, characterized in that, The light steel frame of the window frame is arranged around the window opening of the concrete shear wall. Vertical C-shaped steel bars of the light steel frame are arranged along the left and right edges of the window frame, and horizontal C-shaped steel bars of the light steel frame are arranged along the upper and lower edges of the window frame. The outer surface of the flange of the light steel frame near the window opening is flush with the concrete surface of the window frame. Wooden blocks are pasted on the inner side of the flange. Self-tapping screws pass through the self-tapping screw holes on the connecting steel plate and self-tappingly connect the flange of the light steel frame of the window frame. The self-tapping screws are drilled into the wooden blocks on the inner side of the flange.

6. The prefabricated light steel composite truss supporting steel wire mesh mortar-perlite-polystyrene composite shear wall according to claim 1, characterized in that, The inner leaf steel wire mesh mortar layer is the mortar layer between the dovetail groove of the polystyrene insulation board and the shear wall concrete. The net distance between the inner leaf mortar layer steel wire mesh and the polystyrene insulation board with dovetail groove is 10mm. A 14mm thick mortar with a strength of not less than C20 and a rough surface is used to smooth the gap between the inner leaf mortar layer steel wire mesh and the dovetail groove of the polystyrene insulation board. The U-shaped steel wire is the connection structure between the inner leaf mortar layer steel wire mesh and the light steel frame. Its bent flange is spot welded to the steel wire of the inner leaf mortar layer steel wire mesh. The web members are vertically connected to the light steel frame. C-shaped steel and light steel frame are welded horizontally with C-shaped steel; the polystyrene insulation board is a polystyrene insulation board with dovetail grooves at the connection between the inner side and the inner leaf mortar layer; the perlite board is the fireproof layer of the wall panel 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 outer side of the wall panel, and 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 net protective layer thickness of the mortar of the outer leaf mortar layer steel wire mesh is 10mm.

7. The prefabricated light steel composite truss supporting steel wire mesh mortar-perlite-polystyrene composite shear wall according to claim 1, characterized in that, The window frame mortar strip is a mortar strip for sealing the window frame, connecting the inner leaf mortar bonding layer and the outer leaf mortar layer. It is 50mm thick and its width is the distance from the outer leaf mortar layer to the outer surface of the concrete shear wall. It contains a 4mm diameter steel mesh with a 200mm spacing. The steel mesh is embedded 100mm between the inner and outer leaf mortar layers, overlapping and binding with both the inner and outer leaf mortar layer wire meshes. A 220mm long and 80mm wide mortar strip load-bearing steel plate is attached to the window frame. Two reinforcing bars of the mortar strip reinforcement mesh are welded along the direction outside the shear wall plane. The reinforcing bars on the outside of the steel plate are welded in the direction parallel to the shear wall plane to enhance the anchoring performance between the steel plate and the mortar strip of the window frame. The mortar strip of the window frame has a groove at the force-transfer steel plate of the mortar strip. The force-transfer steel plate of the mortar strip is connected to the light steel frame of the window frame. Self-tapping screws are used to pass through the self-tapping screw holes of the connecting steel plate and drill into the force-transfer steel plate of the mortar strip and the light steel frame of the window frame. Finally, high-performance mortar is used to fill the groove of the mortar strip of the window frame at the force-transfer steel plate of the mortar strip.

8. The prefabricated light steel composite truss supporting steel wire mesh mortar-perlite-polystyrene composite shear wall according to claim 1, characterized in that, The horizontal countersunk self-tapping screw connectors and combined countersunk self-tapping screw connectors are both web members of the light steel composite truss, connecting the outer chord of the 25mm thick steel wire mesh mortar layer strip to the inner chord of the light steel frame. The horizontal and combined countersunk fiber composite connectors, with a recessed dimension greater than or equal to 50mm, penetrate the perlite-polystyrene insulation layer and self-taps to connect to the light steel frame. The countersunk fiber composite connector consists of a 3mm×60mm×60mm outer square plate, a stepped 4mm×46mm×46mm square plate, a centrally located hollow round bar with an outer diameter of 14mm, an inner diameter of 10mm, and a centrally located hollow round bar with an outer diameter of 14mm, an inner diameter of 6mm, and a length of 20mm. The hollow round rod is formed in one piece as a connector; the angle between the square plate of the countersunk fiber composite connector and the hollow round rod of the horizontal countersunk thermally broken long self-tapping screw connector is 90 degrees; the angle between the rectangular plate of the countersunk fiber composite connector and the hollow round rod of the combined countersunk thermally broken long self-tapping screw connector is divided into two types: 90 degrees through the horizontal long self-tapping screw and 45 degrees through the obliquely upward long self-tapping screw; the steel self-tapping screw has a head diameter of 10mm, a shank diameter of 6mm, and is threaded throughout; horizontal countersunk thermally broken long self-tapping screw connectors are arranged at the top and bottom of the vertical C-shaped steel of the light steel frame, and combined countersunk thermally broken long self-tapping screw connectors are arranged in the middle; horizontal countersunk thermally broken long self-tapping screw connectors are arranged on the horizontal C-shaped steel of the light steel frame, with a spacing not exceeding 800mm.

9. The prefabricated light steel composite truss supporting steel wire mesh mortar-perlite-polystyrene composite shear wall according to claim 1, characterized in that, The horizontal and oblique webs of the wire mesh frame are supporting reinforcing wires connecting the inner and outer mortar layer wire mesh. The wire mesh frame consists of horizontal webs with a diameter of 2mm and a spot weld spacing of 200mm between the inner and outer mortar layer wire meshes, and oblique webs at an upward angle of 45 degrees. The horizontal and oblique webs penetrate a 25mm thick perlite board and a 24mm thick inner mortar connecting layer, bonded to a 200mm thick polystyrene insulation board with dovetail grooves, and extend 60mm into the horizontal projection of the shear wall concrete.

10. A method for constructing a prefabricated light steel composite truss with window openings supporting a steel wire mesh mortar-perlite-polystyrene composite shear wall, characterized in that... Includes the following: First, the insulated shear wall is constructed using the following process: The first step involves processing and welding the vertical and horizontal C-shaped steel of the light steel frame in the factory, binding the shear wall reinforcement cage and the connecting beam reinforcement cage, installing the grouting sleeve, purchasing polystyrene insulation board and perlite board, and cutting and assembling them to the required size; preparing the inner and outer steel wire mesh, the web wire of the steel wire mesh frame, and the window frame mortar strip reinforcement mesh welded with force transmission steel plates; and prefabricating horizontal countersunk thermal break long self-tapping screw connectors and combined countersunk thermal break long self-tapping screw connectors. The second step is to install and position the light steel frame on the shear wall reinforcement cage. The inner wire mesh is connected to the light steel frame using U-shaped steel wires. Engineering plastic spacers are used to space the dovetail groove of the light steel frame and the polystyrene insulation board with the thickness of the inner mortar layer, and to position the polystyrene insulation board, perlite board, and outer wire mesh. The mortar strip reinforcement mesh of the window frame is tied to the inner and outer leaf wire mesh, and the mortar strip force transmission steel plate welded on it is aligned with the light steel frame of the window frame. The third step involves sequentially penetrating the horizontal and diagonal web wires of the wire mesh frame through the perlite board and polystyrene insulation board. The two ends of the web wires are then spot-welded to the inner and outer wire mesh to form the wire mesh frame, which extends into the shear wall at a certain anchorage distance. The horizontal thermal break self-tapping screw connectors and the combined thermal break self-tapping screw connectors with long self-tapping screws are then sequentially penetrating the perlite board and polystyrene insulation board, connecting the self-tapping screws to the light steel frame, and extending into the shear wall at a certain anchorage distance. Step 4: Pour the inner and outer wire mesh mortar surface layer and the grooved window frame mortar strip, and cure it; Place the connecting steel plate in the groove of the window frame mortar strip, with its surface adhering to the force-transmitting steel plate of the mortar strip and the flange on one side of the window opening of the light steel frame grid; Use self-tapping screws to pass through the self-tapping screw holes of the connecting steel plate to self-tap the force-transmitting steel plate of the mortar strip and the flange of the light steel frame grid; Use high-performance mortar to smooth the groove of the window frame mortar strip. Step 5: Using the steel wire mesh mortar-perlite-polystyrene insulation structure as the bottom formwork, pour the shear wall concrete and cure it. The prepared insulated shear wall is then assembled, and the construction process is as follows: Step 6: Install the prefabricated concrete floor slab onto the upper part of the lower concrete shear wall and lay a mortar cushion layer; lap the horizontal steel bars of the left and right prefabricated shear walls, tie the vertical structural steel bars and tie bars, and support the formwork on the inner side of the vertical concrete post-cast strips of the adjacent left and right wall panels, with the polystyrene insulation board on the outer side also serving as formwork. Step 7: Connect the longitudinal reinforcing bars at the top of the lower shear wall and connecting beam to the grouting sleeve at the bottom of the upper shear wall, and connect the tongue and groove joints of the polystyrene insulation boards and the post-applied mortar strips of the upper and lower wall panels. Inject grout into the sleeve through the reserved holes, tie additional wire mesh in the horizontal reserved strips, and smooth the horizontal mortar strips between the upper and lower wall panels with high-performance insulation mortar; pour concrete in the vertical post-cast strips of the left and right wall panels, tie additional wire mesh in the vertical reserved strips, and smooth the vertical mortar strips between the left and right wall panels with high-performance insulation mortar; Step 8: Remove the formwork to form the connection structure of the upper and lower wall panels with the mortar strips and grouting sleeves, as well as the connection structure of the left and right wall panels with the mortar strips and the poured concrete. Apply waterproof paint to the mortar surface of the wall panels and apply interior wall paint to the reinforced concrete shear wall inside the wall panels.

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