A prefabricated composite wall based on double-row C-shaped steel keel

Abstract

This invention discloses a prefabricated composite wall based on double-row C-shaped steel keel, comprising a skeleton layer, outer wall panels and inner wall panels disposed on both sides of the skeleton layer, and a filling layer inside the skeleton layer. The skeleton layer includes several sets of longitudinally parallel column assemblies, each set of column assemblies including two sets of C-shaped steel with opposite openings. C-shaped steel connectors, top C-shaped steel connectors, and cantilevered thermal break connectors are fixedly connected between the two sets of C-shaped steel inside the column assembly. Angle steels are fixedly connected to the upper and lower ends of the C-shaped steels on the same side within different column assemblies, and the two sets of angle steels at the same end form a beam assembly. The top C-shaped steel connectors are fixedly connected between the top ends of the two sets of C-shaped steels and the two sets of angle steels, and the cantilevered thermal break connectors are fixedly connected between the bottom ends of the two sets of C-shaped steels and the two sets of angle steels. This invention ensures the thermal insulation performance of the prefabricated composite wall by dividing the skeleton layer into two layers and filling the space between them with a filling layer, reducing the generation of thermal bridges and minimizing heat loss.

Description

Technical Field

[0001] This invention relates to the field of prefabricated composite walls, and in particular to a prefabricated composite wall based on double-row C-shaped steel keel. Background Technology

[0002] With the development trend of the construction industry and the guidance of national policies, prefabricated buildings are in a stage of rapid development. Prefabricated buildings refer to the transfer of a large amount of on-site work in traditional construction methods to factories. Building components and accessories, such as floor slabs, wall panels, stairs, balconies, etc., are processed and manufactured in factories, transported to the construction site, and assembled and installed on-site through reliable connection methods.

[0003] Traditional building walls are typically constructed using single-material masonry, such as brick walls, hollow block walls, or aerated concrete walls. Due to the need for energy conservation in buildings, many single-material walls have excessively high thermal conductivity, failing to meet insulation requirements. Therefore, composite walls are often formed by combining load-bearing materials with high-efficiency insulation materials. Most existing prefabricated walls consist of inner and outer wall panels connected by insulation material. However, to ensure wall strength, numerous connecting structures are needed to fix the inner and outer walls, leading to more thermal bridges and increased heat loss. Summary of the Invention

[0004] The purpose of this invention is to provide a prefabricated composite wall based on double-row C-shaped steel keel to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the present invention provides the following solution:

[0006] The present invention provides a prefabricated composite wall based on double-row C-shaped steel keel, including a skeleton layer, an outer wall panel and an inner wall panel disposed on both sides of the skeleton layer, and a filling layer filled inside the skeleton layer.

[0007] The skeleton layer includes several sets of longitudinally parallel column assemblies. Each set of column assemblies includes two sets of C-shaped steel with opposite openings. Inside each column assembly, the two sets of C-shaped steel are fixedly connected by C-shaped steel connectors, top C-shaped steel connectors, and cantilevered bridge connectors. Angle steel is fixedly connected to the top and bottom ends of the C-shaped steel on the same side in different column assemblies. The two sets of angle steel at the same end form a beam assembly. The top C-shaped steel connectors are fixedly connected between the top ends of the two sets of C-shaped steel and the two sets of angle steel. The cantilevered bridge connectors are fixedly connected between the bottom ends of the two sets of C-shaped steel and the two sets of angle steel.

[0008] Preferably, the window frame also includes a window frame and a window sash disposed inside the window frame. The window frame is fixedly disposed between two adjacent sets of column assemblies. An upper fixed crossbeam and a lower fixed crossbeam are respectively disposed at the upper and lower ends of the window frame. The upper fixed crossbeam and the lower fixed crossbeam are both fixedly disposed between two sets of column assemblies adjacent to the window frame. An upper column assembly and a lower column assembly are respectively disposed between the upper fixed crossbeam and the adjacent crossbeam assembly. Several sets of C-shaped steel window frame connectors are fixedly disposed between two C-shaped steel sections in the column assembly adjacent to the window frame. The window frame is fixedly connected to the C-shaped steel window frame connectors.

[0009] Preferably, the filling layer includes a first insulation layer arranged in the middle and vertical rock wool layers disposed on both sides of the first insulation layer, wherein the vertical rock wool layers are disposed between two sets of angle steels that are opposite each other.

[0010] Preferably, the exterior wall panel is a cement-based fiberboard, which is installed on the outside of the angle steel and is fixedly connected to the vertical fiber rock wool layer and the angle steel by fixing nails; the interior wall panel is a fiberglass mortar board, which is bonded to the vertical fiber rock wool layer.

[0011] Preferably, it further includes a first reinforcing component, which includes several sets of transverse reinforcing rods and / or inclined steel strips. The transverse reinforcing rods and / or inclined steel strips are all fixedly connected to several sets of C-shaped steels on the same side in different column components. The inclined steel strips are inclinedly arranged on the open side of the C-shaped steel and fixedly connected to the side plates at both ends of the open side. The transverse reinforcing rods are horizontally arranged on one end of the C-shaped steel away from the open side and fixedly connected to it.

[0012] Preferably, a floor slab is provided between adjacent upper and lower composite walls, and an assembly connection mechanism is provided between the floor slab and the lower composite wall; the assembly connection mechanism includes an I-shaped steel fixedly connected to the floor slab, the upper flange of the I-shaped steel fixedly connected to the floor slab, the lower flange of the I-shaped steel fixedly connected to a first mounting angle steel, and the upper angle steel of the lower composite wall fixedly connected to a second mounting angle steel, the first mounting angle steel and the second mounting angle steel being fixedly connected by bolts; a second insulation layer is provided between the upper and lower flanges of the I-shaped steel, and polyurethane foam board or graphite board is filled between the lower flange and the composite wall; a composite insulation layer is provided on the outdoor side of the I-shaped steel and the floor slab, the composite insulation layer being fixedly connected to the upper composite wall and the lower composite wall respectively, and vertical rock wool and cement pressure board are fixedly connected to the indoor side of the I-shaped steel, the cement pressure board being fixedly connected to the floor slab by a third mounting angle steel; an embedded part is fixedly provided in the floor slab, and the embedded part is fixedly connected to the upper composite wall by a fourth mounting angle steel.

[0013] Preferably, the top connector of the C-shaped steel includes a first support plate and a first snap-fit ​​plate fixedly disposed on both sides of the first support plate, the first support plate and the first snap-fit ​​plate being located in the same plane; the first snap-fit ​​plate is snapped into the C-shaped steel, and the first snap-fit ​​plate is adapted to the cross-section of the inner cavity of the C-shaped steel; a plurality of first through holes are provided on the first support plate; the top connector of the C-shaped steel is snapped between two sets of C-shaped steel with opposite openings, and an angle steel is overlapped at the end of each set of C-shaped steel, the angle steel and the first snap-fit ​​plate being connected by screws.

[0014] Preferably, the C-shaped steel connector includes a second support plate and second snap-fit ​​blocks fixedly disposed at both ends of the second support plate; the second snap-fit ​​blocks snap into the C-shaped steel and are adapted to the inner cavity of the C-shaped steel; the second snap-fit ​​blocks include a first mounting plate and a second mounting plate arranged in parallel and a second side plate fixedly disposed on both sides of the first mounting plate and the second mounting plate, the second side plate being arranged perpendicularly to the first mounting plate; the second mounting plate is perpendicularly fixedly connected to the second support plate.

[0015] Preferably, the C-shaped steel window frame connector includes a third support plate, third snap-fit ​​blocks fixedly disposed at both ends of the third support plate, and window frame mounting blocks fixedly connected to the side of the third support plate; the third snap-fit ​​blocks snap into the C-shaped steel and are adapted to the inner cavity of the C-shaped steel; the third snap-fit ​​blocks include a base plate fixedly connected to the third support plate, a layered plate fixedly connected to the middle of the base plate, and third side plates fixedly connected vertically to both sides of the layered plate, the third side plates being arranged perpendicularly to and fixedly connected to the base plate; the window frame mounting blocks include a third mounting plate arranged parallel to the third support plate and several sets of third fixing plates fixedly connected between the third mounting plate and the third support plate, the two ends of the third mounting plate being inclined plates, and the opening of the third mounting plate facing the third support plate.

[0016] Preferably, the cantilevered bridge connecting component includes a fourth support block, with fourth snap-fit ​​blocks fixedly disposed on both sides of the fourth support block. The fourth snap-fit ​​blocks snap into the C-shaped steel and are adapted to the inner cavity of the C-shaped steel. The fourth support block includes two sets of parallel fourth support plates and several sets of isolation plates fixedly disposed between the two sets of support plates. The fourth snap-fit ​​block includes a C-shaped plate adapted to the inner cavity of the C-shaped steel. The two sets of fourth support plates are fixedly connected to the ends of the C-shaped plate, and the two sets of fourth support plates are fixedly connected to the inner bottom plate of the C-shaped plate. An angle steel mounting groove is provided at the bottom outer side of the inner bottom plate, and an mounting plate is fixedly connected to the C-shaped plate at the angle steel mounting groove.

[0017] This invention discloses the following technical effects: The invention uses C-shaped steel connectors to fix two sets of C-shaped steel inside the column assembly, improving the connection strength of the column assembly. Furthermore, it uses top C-shaped steel connectors to fix the top of the column assembly and the beam assembly, and cantilevered thermal break connectors to fix the bottom of the column assembly and the beam assembly. Multiple sets of C-shaped steel connectors, top C-shaped steel connectors, and cantilevered thermal break connectors fix the beam assembly and the column assembly, ensuring the stability of the skeleton layer while dividing the skeleton layer into two layers. A filling layer is placed between the two layers to ensure the thermal insulation performance of the prefabricated composite wall, reducing thermal bridging and heat loss. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the prefabricated composite wall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the assembly and connection mechanism of the present invention;

[0021] Figure 3 This is a schematic diagram of the windowless skeleton layer structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the windowed skeleton layer structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the column assembly structure of the present invention;

[0024] Figure 6 This is a schematic diagram of the node structure under the window frame of the present invention;

[0025] Figure 7 This is a schematic diagram of the left node structure of the window frame of the present invention;

[0026] Figure 8 This is a schematic diagram of the C-shaped steel top connector structure of the present invention;

[0027] Figure 9 This is another top view of the C-shaped steel top connector of the present invention;

[0028] Figure 10 This is a schematic diagram of the C-shaped steel top connector installation structure of the present invention;

[0029] Figure 11 This is a schematic diagram of the C-shaped steel connector structure of the present invention;

[0030] Figure 12 This is a side view of the C-shaped steel connector of the present invention;

[0031] Figure 13 This is another structural schematic diagram of the C-shaped steel connector of the present invention;

[0032] Figure 14 This is a schematic diagram of the installation structure of the C-shaped steel connector of the present invention;

[0033] Figure 15 This is a schematic diagram of the C-shaped steel window frame connector structure of the present invention;

[0034] Figure 16 This is a top view of the C-shaped steel window frame connector of the present invention;

[0035] Figure 17 This is another structural schematic diagram of the C-shaped steel window frame connector of the present invention;

[0036] Figure 18 Schematic diagram of the installation structure of the C-shaped steel window frame connector of the present invention;

[0037] Figure 19 This is a schematic diagram of the cantilevered broken bridge connector structure of the present invention;

[0038] Figure 20 This is a front view of the cantilevered broken bridge connector of the present invention;

[0039] Figure 21 This is a top view of the cantilevered broken bridge connector of the present invention;

[0040] Figure 22 This is a side view of the installation of the cantilevered broken bridge connector of the present invention.

[0041] Among them, 1. C-shaped steel top connector; 101. First support plate; 102. First snap-fit ​​plate; 103. First through hole; 104. First arc groove; 105. First mounting hole; 2. C-shaped steel connector; 201. Second support plate; 202. Second snap-fit ​​block; 203. Second through hole; 204. First mounting plate; 205. Second partition plate; 206. Second side plate; 207. First reinforcing plate; 208. Second arc-shaped mounting groove; 209. Second reinforcing plate; 210. 2. Mounting plate; 212. Third reinforcing plate; 213. Second isolation hole; 3. C-shaped steel window frame connector; 301. Third support plate; 302. Third snap-fit ​​block; 303. Window frame mounting block; 304. Base plate; 305. Layered plate; 306. Third mounting plate; 307. Third fixing plate; 308. Third through hole; 309. Third arc-shaped mounting groove; 310. Third side plate; 311. Third receiving groove; 312. Third isolation hole; 313. Transition section; 314. First fixing... 4. Cantilevered thermal break connector; 401. Fourth support block; 402. Fourth snap-fit ​​block; 403. Fourth support plate; 404. Isolation plate; 405. C-shaped plate; 406. Inner bottom plate; 407. Angle steel mounting groove; 408. Mounting plate; 409. Fourth arc-shaped mounting groove; 410. Fourth fixing plate; 411. Fourth thermal break hole; 5. Column assembly; 501. C-shaped steel; 6. Beam assembly; 601. Angle steel; 7. Exterior wall panel; 8. Interior wall panel; 9. Filling layer; 901. First insulation layer; 902, vertical rock wool layer; 10, window frame; 11, window sash; 12, upper fixed crossbeam; 13, lower fixed crossbeam; 14, upper column assembly; 15, lower column assembly; 16, horizontal reinforcing bar; 17, inclined steel strip; 18, floor slab; 19, I-beam; 20, first mounting angle steel; 21, second mounting angle steel; 22, composite insulation layer; 23, cement pressure board; 24, third mounting angle steel; 25, embedded parts; 26, second insulation layer; 27, fourth mounting angle steel. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0044] Reference Figure 1-22This invention provides a prefabricated composite wall based on double-row C-shaped steel keel, including a frame layer, an outer wall panel 7 and an inner wall panel 8 disposed on both sides of the frame layer, and a filling layer 9 filled inside the frame layer; when the prefabricated composite wall is used as an exterior wall facade, the outer wall panel 7 is suspended outside the foundation, saving indoor space, and at the same time, the frame layer is used to fix and connect the filling layer inside the frame layer and the outer wall panel 7 and inner wall panel 8 on both sides, thereby providing support for the outer wall panel 7.

[0045] The skeleton layer includes several sets of longitudinally parallel column assemblies 5. Each set of column assemblies 5 includes two sets of C-shaped steel 501 with opposite openings. C-shaped steel connectors 2, C-shaped steel top connectors 1, and cantilevered bridge connectors 4 are fixedly connected between the two sets of C-shaped steel 501 inside the column assembly 5. Angle steel 601 is fixedly connected to the upper and lower ends of the C-shaped steel 501 on the same side in different column assemblies 5. The two sets of angle steel 601 at the same end form a beam assembly 6. C-shaped steel top connectors 1 are fixedly connected between the top of the two sets of C-shaped steel 501 and the two sets of angle steel 601. Cantilevered bridge connectors 4 are fixedly connected between the bottom of the two sets of C-shaped steel 501 and the two sets of angle steel 601. The two sets of C-shaped steel 501 inside the column assembly 5 are fixedly connected by C-shaped steel connectors 2 to improve the connection strength of the column assembly. The top of the column assembly 5 and the crossbeam assembly 6 are fixedly connected by C-shaped steel top connectors 1. The bottom of the column assembly 5 and the crossbeam assembly 6 are fixedly connected by cantilevered thermal break connectors 4. The crossbeam assembly 6 and the column assembly 5 are fixedly connected by multiple sets of C-shaped steel connectors 2, C-shaped steel top connectors 1 and cantilevered thermal break connectors 4. While ensuring the stability of the skeleton layer, the skeleton layer is divided into two layers. The filling layer 9 is filled between the two layers to ensure the thermal insulation performance of the prefabricated composite wall.

[0046] Further optimization of the scheme also includes a window frame 10 and a window sash 11 set inside the window frame 10. The window frame 10 is fixedly set between two adjacent sets of column assemblies 5. The upper and lower ends of the window frame 10 are respectively provided with an upper fixed crossbeam 12 and a lower fixed crossbeam 13. The upper fixed crossbeam 12 and the lower fixed crossbeam 13 are both fixedly set between two sets of column assemblies 5 adjacent to the window frame 10. The upper fixed crossbeam 12 and the lower fixed crossbeam 13 are respectively provided with an upper column assembly 14 and a lower column assembly 15 between their adjacent crossbeam assemblies 6. Several sets of C-shaped steel window frame connectors 3 are fixedly set between two C-shaped steels 501 in the column assembly 5 adjacent to the window frame 10. The window frame 10 is fixedly connected to the C-shaped steel window frame connectors 3. The upper fixed beam 12 and the lower fixed beam 13 are fixed and supported by the upper column assembly 14 and the lower column assembly 15 respectively. Multiple sets of C-shaped steel window frame connectors 3 are fixedly installed inside the two adjacent sets of column assemblies to form the side wall support of the window frame 10. The window frame 10 is fixed by the multiple sets of C-shaped steel window frame connectors 3, the upper fixed beam 12 and the lower fixed beam 13, thereby ensuring the stability of the window frame 10.

[0047] The scheme is further optimized. The filling layer 9 includes a first insulation layer 901 arranged in the middle and vertical rock wool layers 902 arranged on both sides of the first insulation layer 901. The vertical rock wool layers 902 are arranged between two sets of angle steels 601 that are opposite each other. The first insulation layer 901 can be made of graphite board to improve the insulation performance of the filling layer. The vertical rock wool layers 902 can improve the insulation performance of the filling layer and also improve its mechanical strength to ensure the mechanical strength of the filling layer.

[0048] The scheme is further optimized. The outer wall panel 7 is a cement-based fiberboard, which is set on the outside of the angle steel 601. The outer wall panel 7 is fixedly connected to the vertical fiber rock wool layer 902 and the angle steel 601 by fixing nails. The inner wall panel 8 is a fiberglass mortar board, which is bonded to the vertical fiber rock wool layer 902. The skeleton layer is wrapped by the outer wall panel 7 and the inner wall panel 8, which improves the aesthetics of the composite wall and enhances the overall mechanical strength of the composite wall.

[0049] Further optimization of the scheme also includes a first reinforcing component, which comprises several sets of transverse reinforcing rods 16 and / or inclined steel strips 17. The transverse reinforcing rods 16 and / or inclined steel strips 17 are all fixedly connected to several sets of C-shaped steels 501 on the same side within different column components 5. The inclined steel strips 17 are inclinedly arranged on the open side of the C-shaped steels 501 and fixedly connected to the side plates at both ends of the open side. The transverse reinforcing rods 16 are horizontally arranged on one end of the C-shaped steels 501 away from the open side and fixedly connected to it. The transverse reinforcing rods 16 horizontally fix two or more sets of column components, improving the stability of the frame layer. By fixing the inclined steel strips 17 inside the frame layer, and fixing the inclined steel strips 17 to the flange plates of the C-shaped steels 501, the stability of the C-shaped steels 501 is ensured while improving the stability of the entire frame layer.

[0050] The scheme is further optimized by installing a floor slab 18 between adjacent upper and lower composite walls, and an assembly connection mechanism between the floor slab 18 and the lower composite wall. The assembly connection mechanism includes an I-beam 19 fixedly connected to the floor slab 18, with its upper flange fixedly connected to the floor slab 18, and its lower flange fixedly connected to a first mounting angle steel 20. A second mounting angle steel 21 is fixedly connected to an angle steel 601 at the upper end of the lower composite wall. The first mounting angle steel 20 and the second mounting angle steel 21 are fixedly connected by bolts. The upper and lower flanges of the I-beam 19 are connected... A second insulation layer 26 is provided, and polyurethane foam board or graphite board is filled between the lower flange and the composite wall. A composite insulation layer 22 is provided on the outdoor side of the I-beam 19 and the floor slab 18. The composite insulation layer 22 is fixedly connected to the upper and lower composite walls respectively. Vertical rock wool and cement pressure board 23 are fixedly connected to the indoor side of the I-beam 19. The cement pressure board 23 is fixedly connected to the floor slab 18 through a third installation angle steel 24. An embedded part 25 is fixedly installed in the floor slab 18. The embedded part 25 is fixedly connected to the upper composite wall through a fourth installation angle steel 27. In this case, the prefabricated composite wall is used as the exterior wall facade. The exterior wall panel 7 and the C-shaped steel 501 on the outdoor side of the frame layer are suspended on the outside. At the same time, the composite insulation layer 22 isolates the floor slab 18 and other structures from the outside, ensuring the integrity of the exterior wall facade while reducing energy loss caused by thermal bridges formed by the floor slab and I-beam.

[0051] When the prefabricated composite wall is used as an interior wall panel, an I-beam 19 can be directly installed between the floor slab 18 and the composite wall. The I-beam 19 contains insulation materials, sound insulation materials, etc. for insulation and sound insulation. Alternatively, the composite wall can be directly installed between two adjacent floor slabs 18 and fixed with angle steel.

[0052] Further optimizing the design, the C-shaped steel top connector 1 includes a first support plate 101 and first snap-fit ​​plates 102 fixedly disposed on both sides of the first support plate 101. The first support plate 101 and the first snap-fit ​​plates 102 are located in the same plane. The first snap-fit ​​plates 102 snap into the C-shaped steel 501, and the first snap-fit ​​plates 102 are adapted to the cross-section of the inner cavity of the C-shaped steel 501, thereby allowing the C-shaped steel top connector 1 to snap between two sets of C-shaped steel 501. Several sets of first through holes 103 are provided on the first support plate 101 to block the thermal bridge formed by the first support plate 101 and reduce energy loss. The C-shaped steel top connector 1 snaps between two sets of C-shaped steel 501 with opposite openings. Angle steel 601 overlaps at the end of each set of C-shaped steel 501. The angle steel 601 and the first snap-fit ​​plates 102 are connected by screws, and the angle steel 601 and the C-shaped steel 501 are fixedly connected by screws.

[0053] Each of the first snap-fit ​​plates 102 has a first arc groove 104 symmetrically provided on the side opposite to the first support plate 101, so that it can be adapted to the inward protrusion on the C-shaped steel 501 base plate.

[0054] Each of the first snap-fit ​​plates 102 has four first mounting holes 105 arranged in two rows and two columns. These holes can block the generation of thermal bridges and allow the angle steel 601 to be fixedly connected to the first snap-fit ​​plate 102 by screws.

[0055] Several groups of the first through holes 103 are arranged in the same row. The diameter of the first through holes 103 is 14mm. The distance between two adjacent groups of the first through holes 103 is greater than 22mm, which reduces the heat conduction of thermal bridges while ensuring the strength of the top connector 1 of the C-shaped steel.

[0056] The first snap-fit ​​plate 102 and the first support plate 101 have the same thickness, which is 5-7mm. This ensures the strength of the top connector 1 of the C-shaped steel while preventing the top connector 1 of the C-shaped steel from becoming too thick, which would cause a surge in its heat conduction. The top connector 1 of the C-shaped steel is made of aluminized zinc-coated steel sheet, which has better corrosion resistance.

[0057] Several groups of the first through holes 103 are arranged in three rows and several columns. The first through holes 103 in the upper and lower rows are symmetrically arranged with the first through holes 103 in the middle row. The first through holes 103 in the middle row are staggered with the first through holes 103 in the upper and lower rows, increasing the number of first through holes 103, blocking the thermal bridge formed by the first support plate 101 multiple times, and reducing energy loss.

[0058] Further optimizing the design, the C-shaped steel connector 2 includes a second support plate 201 and second snap-fit ​​blocks 202 fixedly disposed at both ends of the second support plate 201; the second snap-fit ​​blocks 202 snap into the C-shaped steel 501, and the second snap-fit ​​blocks 202 are adapted to the inner cavity of the C-shaped steel 501; the second snap-fit ​​blocks 202 include a first mounting plate 204 and a second mounting plate 210 arranged in parallel, and a second side plate 206 fixedly disposed on both sides of the first mounting plate 204 and the second mounting plate 210, the second side plate 206 being arranged perpendicularly to the first mounting plate 204; the second mounting plate 210 is perpendicularly fixedly connected to the second support plate 201. A second partition plate 205 is fixedly connected between the first mounting plate 204 and the second mounting plate 210, and the second partition plate 205 is fixedly connected to the two sets of side plates respectively; a second isolation hole 213 is provided on the second partition plate 205. Two sets of first reinforcing plates 207 are vertically fixed between the first mounting plate 204 and the second mounting plate 210, and the two sets of first reinforcing plates 207 are respectively arranged on both sides of the second partition 205. The second snap-fit ​​block 202, formed by the first mounting plate 204, the two sets of second side plates 206, and the second mounting plate 210, contacts the inner cavity wall of the C-shaped steel 501 and supports the two sets of C-shaped steel 501 through the two second snap-fit ​​blocks 202. All four sets of side walls of the second snap-fit ​​block 202 are in contact with the C-shaped steel 501, which improves the installation accuracy and reduces the installation difficulty by allowing for positioning and installation without manual fixing due to friction during the installation process.

[0059] When only one set of the second support plate 201 is provided, second reinforcing plates 209 are fixedly connected to the upper and lower sides of the second support plate 201, and each set of second reinforcing plates 209 is fixedly connected to the first reinforcing plates 207 on both sides; several second through holes 203 are opened on both the second support plate 201 and the second reinforcing plate 209. The second through holes 203 block the generation of thermal bridges in the C-shaped steel connector 2 and reduce energy loss. The mechanical strength of the second support plate 201 is improved by the two sets of second reinforcing plates 209, thereby improving the stability of the C-shaped steel connector 2.

[0060] When two sets of second support plates 201 are arranged in parallel, several sets of third reinforcing plates 212 are fixedly connected between the two sets of second support plates 201, and the two sets of second support plates 201 are snapped into the opening of the C-shaped steel 501. The overall strength of the C-shaped steel connector is improved by the two sets of second support plates 201 and the several sets of third reinforcing plates 212 between them.

[0061] The design is further optimized by providing a second arc-shaped mounting groove 208 on the outer side of the first mounting plate 204, and fixing the first mounting plate 204 and the inner surface of the C-shaped steel 501 together with screws.

[0062] The scheme is further optimized. The C-shaped steel window frame connector 3 includes a third support plate 301, a third snap-fit ​​block 302 fixedly installed at both ends of the third support plate 301, and a window frame mounting block 303 fixedly connected to the side of the third support plate 301.

[0063] The third snap-fit ​​block 302 snaps into the C-shaped steel 501, and the third snap-fit ​​block 302 is adapted to the inner cavity of the C-shaped steel 501; the third snap-fit ​​block 302 includes a base plate 304 fixedly connected to the third support plate 301, a layered plate 305 fixedly connected to the middle of the base plate 304, and a third side plate 310 fixedly connected to both sides of the layered plate 305 vertically, the third side plate 310 being arranged perpendicularly to and fixedly connected to the base plate 304; a third arc-shaped mounting groove 309 is provided on the outer side of the base plate 304, and the base plate 304 and the inner surface of the C-shaped steel 501 are fixedly connected by screws.

[0064] The window frame mounting block 303 includes a third mounting plate 306 arranged parallel to the third support plate 301 and several sets of third fixing plates 307 fixedly connected between the third mounting plate 306 and the third support plate 301. The two ends of the third mounting plate 306 are inclined plates, and the opening of the third mounting plate 306 faces the third support plate 301.

[0065] The third support plate 301 is arranged parallel to the third side plate 310. The third support plate 301 has a third receiving groove 311 for accommodating the layered plate 305. The layered plate 305 is inserted into the third receiving groove 311 and fixedly connected to the third support plate 301. The third support plate 301 is fixedly connected to the bottom plate 304. Any two of the bottom plate 304, the third support plate 301, and the layered plate 305 are arranged perpendicular to each other. The third support plate 301 has several third through holes 308.

[0066] Two transition sections 313 are symmetrically arranged in the middle of the side of the layered plate 305 opposite to the bottom plate 304. The tops of the two transition sections 313 are fixedly connected to the third receiving groove 311. The two transition sections 313 are located at the opening of the C-shaped steel to prevent the third snap-fit ​​block 302 from affecting the C-shaped steel 501 and the components during installation. Since the third mounting plate 306 needs to bear the load, it is necessary to improve the overall strength of the C-shaped steel window frame connector 3. Any two of the bottom plate 304, the third support plate 301, and the layered plate 305 are vertically fixedly connected, and the third support plate 301 and the layered plate 305 are also fixedly snap-fitted, which improves the stability of the third support plate 301 and enables it to meet the load generated by the window frame 10. Several third isolation holes 312 are opened on the layered plate 305 to reduce heat loss.

[0067] In another embodiment, a first fixing plate 314 is fixedly connected between the two sets of third side plates 310 within the third snap-fit ​​block 302. The first fixing plate 314 is parallel to the base plate 304 and fixedly connected to the layer plate 305. The two ends of the third support plate 301 and the third mounting plate 306 are respectively fixedly connected to the first fixing plates 314 on the two sets of third snap-fit ​​blocks 302. The two ends of the third mounting plate 306 are directly fixed to the first fixing plates 314 on the two sets of third snap-fit ​​blocks 302, separating the third mounting plate 306 from the third support plate 301, thus improving their mechanical strength and stability. Several third isolation holes 312 are provided on the layer plate 305.

[0068] like Figure 7 As shown, the third mounting plate 306 on the mounting block 303 is fixedly connected to the window frame 10 via a mounting bracket. The window frame 10 is not directly fixed to the column assembly and beam assembly on all four sides; instead, it is fixed to the column assembly via multiple sets of C-shaped steel window frame connectors 3. This avoids thermal bridging caused by directly installing the window frame 10 onto the column, preventing greater energy loss. Furthermore, during window installation, directly fixing the window frame 10 to the column assembly and beam assembly via multiple sets of C-shaped steel window frame connectors 3 simplifies the operation, eliminates the need for an auxiliary frame, simplifies the installation process, and greatly improves efficiency.

[0069] Further optimizing the scheme, the cantilevered broken bridge connector 4 includes a fourth support block 401, with fourth snap-fit ​​blocks 402 fixedly installed on both sides of the fourth support block 401. The fourth snap-fit ​​blocks 402 snap into the C-shaped steel 501 and are adapted to the inner cavity of the C-shaped steel 501. The fourth support block 401 includes two sets of parallel fourth support plates 403 and several sets of isolation plates 404 fixedly installed between the two sets of support plates. The fourth snap-fit ​​block 402 includes a C-shaped plate 405 adapted to the inner cavity of the C-shaped steel 501. The two sets of fourth support plates 403 are fixedly connected to the ends of the C-shaped plate 405, and the two sets of fourth support plates 403 are fixedly connected to the inner bottom plate 406 of the C-shaped plate 405. An angle steel mounting groove 407 is opened at the bottom outer side of the inner bottom plate 406, and an mounting plate 408 is fixedly connected to the C-shaped plate 405 at the angle steel mounting groove 407. Two sets of fourth fixing plates 410 are fixedly connected between the two sets of fourth support plates 403, and the two sets of fourth fixing plates 410 are respectively arranged between the ends of the two sets of C-shaped plates 405.

[0070] Since the cantilevered thermal break connector 4 is fixedly installed at the bottom of the column assembly and is fixedly connected to both the column assembly and the beam assembly, the column assembly and beam assembly at this location need to bear a greater load. Therefore, it is necessary to improve the support capacity of the cantilevered thermal break connector 4. The two sets of fourth support plates 403 arranged in parallel and several sets of isolation plates 404 fixedly installed between the two sets of support plates support the two sets of fourth snap-fit ​​blocks 402, thereby maximizing the overall strength of the cantilevered thermal break connector 4. At the same time, an angle steel installation groove 407 is opened at the bottom outer side of the inner bottom plate 406, and a fourth fixing plate 410 is fixedly connected thereto. The angle steel 601 is installed in the angle steel installation groove 407 to prevent the angle steel from protruding and affecting the integrity of the prefabricated composite wall.

[0071] The inner bottom plate 406 of the C-shaped plate 405 has a fourth arc-shaped mounting groove 409 on its outer side. The C-shaped plate 405 and the C-shaped steel 501 are fixedly connected by screws. The fourth support plate 403 and the isolation plate 404 have fourth thermal break holes 411. Several sets of the isolation plates 404 are parallel to each other, and the isolation plates 404 are arranged parallel to the fourth fixing plate 410. By providing fourth thermal break holes 411 on the fourth support plate 403 and the isolation plate 404, the energy transfer caused by thermal bridges is reduced, and heat loss is decreased.

[0072] The bottom surfaces of the fourth support block and the two sets of fourth snap-fit ​​blocks are on the same horizontal plane. The two sets of fourth snap-fit ​​blocks have different heights. The upper surface of the relatively lower set of fourth snap-fit ​​blocks and the fourth support block are on the same inclined plane. This reduces the volume of the fourth support block, reduces heat loss caused by thermal bridges, and ensures that the connection strength of the cantilevered broken bridge connector will not decrease drastically.

[0073] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0074] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A fabricated composite wall based on double row C-steel studs, characterized in that: The skeleton layer, outer wall plate (7) and inner wall plate (8) arranged on both sides of the skeleton layer and the filling layer (9) filled in the skeleton layer are included. The skeleton layer includes a plurality of groups of longitudinally parallel arranged column assemblies (5), each group of the column assemblies (5) includes two groups of open opposite C-shaped steels (501), and the two groups of C-shaped steels (501) inside the column assemblies (5) are fixedly connected with a C-shaped steel connecting piece (2), a C-shaped steel top connecting piece (1) and a cantilever broken bridge connecting piece (4); the C-shaped steels (501) on the same side in different column assemblies (5) are fixedly connected with angle steels (601) at upper and lower ends respectively, and the two groups of angle steels (601) located at the same end form a beam assembly (6); the C-shaped steel top connecting piece (1) is fixedly connected between the top ends of the two groups of C-shaped steels (501) and the two groups of angle steels (601), and the cantilever broken bridge connecting piece (4) is fixedly connected between the bottom ends of the two groups of C-shaped steels (501) and the two groups of angle steels (601); The window frame (10) and the sash (11) arranged inside the window frame (10) are further included, the window frame (10) is fixedly arranged between the two adjacent column assemblies (5), the upper and lower ends of the window frame (10) are respectively provided with an upper fixed beam (12) and a lower fixed beam (13), the upper fixed beam (12) and the lower fixed beam (13) are fixedly arranged between the two column assemblies (5) adjacent to the window frame (10), and the upper fixed beam (12) and the lower fixed beam (13) are respectively provided with an upper column assembly (14) and a lower column assembly (15) between the adjacent beam assemblies (6), a plurality of groups of C-shaped steel window frame connecting pieces (3) are fixedly arranged between the two C-shaped steels (501) in the column assembly (5) adjacent to the window frame (10), and the window frame (10) is fixedly connected with the C-shaped steel window frame connecting piece (3). The C-shaped steel window frame connecting piece (3) comprises a third supporting plate (301), third clamping blocks (302) fixedly arranged at both ends of the third supporting plate (301), and a window frame mounting block (303) fixedly connected to the side of the third supporting plate (301); the third clamping blocks (302) are clamped in the C-shaped steel (501), and the third clamping blocks (302) are matched with the inner cavity of the C-shaped steel (501); the third clamping blocks (302) comprise a bottom plate (304) fixedly connected with the third supporting plate (301), a layered plate (305) fixedly connected to the middle of the bottom plate (304), and third side plates (310) fixedly connected to the two sides of the layered plate (305) perpendicularly, wherein the third side plates (310) are arranged perpendicularly to the bottom plate (304) and are fixedly connected; the window frame mounting block (303) comprises a third mounting plate (306) arranged in parallel with the third supporting plate (301), and a plurality of groups of third fixing plates (307) fixedly connected between the third mounting plate (306) and the third supporting plate (301), wherein the two ends of the third mounting plate (306) are inclined plates, and the opening of the third mounting plate (306) faces the third supporting plate (301); The cantilever broken bridge connecting piece (4) comprises a fourth supporting block (401), fourth clamping blocks (402) fixedly arranged on the two sides of the fourth supporting block (401), wherein the fourth clamping blocks (402) are clamped in the C-shaped steel (501), and the fourth clamping blocks (402) are matched with the inner cavity of the C-shaped steel (501); the fourth supporting block (401) comprises two groups of fourth supporting plates (403) arranged in parallel and a plurality of groups of isolation plates (404) fixedly arranged between the two groups of supporting plates; the fourth clamping blocks (402) comprise a C-shaped plate (405) matched with the inner cavity of the C-shaped steel (501), two groups of fourth supporting plates (403) fixedly connected with the end portions of the C-shaped plate (405), and an inner bottom plate (406) fixedly connected with the two groups of fourth supporting plates (403), wherein an angle steel mounting groove (407) is formed in the outer bottom end of the inner bottom plate (406), and a mounting plate (408) is fixedly connected to the C-shaped plate (405) at the angle steel mounting groove (407).

2. The prefabricated composite wall based on double-row C-shaped steel studs according to claim 1, characterized in that: The filling layer (9) comprises a first heat preservation layer (901) arranged in the middle and vertical rock wool layers (902) arranged on the two sides of the first heat preservation layer (901), wherein the vertical rock wool layers (902) are arranged between the two groups of angle steels (601) opposite to each other.

3. The prefabricated composite wall based on double-row C-shaped steel joists according to claim 2, characterized in that: The outer wall panel (7) is a cement-based fiberboard, which is arranged outside the angle steel (601) and is fixedly connected with the vertical rock wool layer (902) and the angle steel (601) through fixing nails; and the inner wall panel (8) is a glass fiber cement panel, which is bonded with the vertical rock wool layer (902).

4. The prefabricated composite wall based on double-row C-shaped steel studs according to claim 1, characterized in that: Further comprising a first reinforcing assembly, the first reinforcing assembly comprises several groups of transverse reinforcing rods (16) and / or inclined steel belts (17), the transverse reinforcing rods (16) and / or the inclined steel belts (17) are fixedly connected with several groups of C-shaped steels (501) on the same side in different column assemblies (5), the inclined steel belts (17) are arranged obliquely on the opening side of the C-shaped steels (501) and are fixedly connected with the side plates at both ends of the opening side; the transverse reinforcing rods (16) are arranged horizontally on one end of the C-shaped steels (501) away from the opening side and are fixedly connected therewith.

5. The prefabricated composite wall based on double-row C-shaped steel studs according to claim 1, characterized in that: A floor (18) is arranged between the upper and lower composite walls, and an assembly connecting mechanism is arranged between the floor (18) and the lower composite wall; the assembly connecting mechanism comprises an I-shaped steel (19) fixedly connected with the floor (18), the upper flange of the I-shaped steel (19) is fixedly connected with the floor (18), the lower flange of the I-shaped steel (19) is fixedly connected with a first mounting angle steel (20), an angle steel (601) at the upper end of the lower composite wall is fixedly connected with a second mounting angle steel (21), and the first mounting angle steel (20) and the second mounting angle steel (21) are fixedly connected by bolts; a second thermal insulation layer (26) is arranged between the upper flange and the lower flange of the I-shaped steel (19), and the lower flange is filled with polyurethane foam board or graphite board between the composite wall; the I-shaped steel (19) and the floor (18) are provided with a composite thermal insulation layer (22) close to the outdoor side, the composite thermal insulation layer (22) is fixedly connected with the upper composite wall and the lower composite wall respectively, the indoor side of the I-shaped steel (19) is fixedly connected with vertical silk rock wool and cement pressure plate (23), and the cement pressure plate (23) is fixedly connected with the floor (18) by a third mounting angle steel (24); a pre-embedded part (25) is fixedly arranged in the floor (18), and the pre-embedded part (25) is fixedly connected with the upper composite wall by a fourth mounting angle steel (27).

6. The prefabricated composite wall based on double-row C-shaped steel studs according to claim 1, characterized in that: The C-shaped steel top connecting piece (1) comprises a first supporting plate (101) and a first clamping plate (102) fixedly arranged on both sides of the first supporting plate (101), and the first supporting plate (101) and the first clamping plate (102) are located in the same plane; the first clamping plate (102) is clamped in the C-shaped steel (501), and the first clamping plate (102) is matched with the cross section of the inner cavity of the C-shaped steel (501); a plurality of first through holes (103) are formed in the first supporting plate (101); the C-shaped steel top connecting piece (1) is clamped between two groups of C-shaped steels (501) with opposite openings, and an angle steel (601) is overlapped at the end of each group of C-shaped steels (501), and the angle steel (601) and the first clamping plate (102) are connected by screws.

7. The prefabricated composite wall based on double-row C-shaped steel studs according to claim 1, characterized in that: The C-shaped steel connecting piece (2) comprises a second supporting plate (201) and a second clamping block (202) fixedly arranged at both ends of the second supporting plate (201); the second clamping block (202) is clamped in the C-shaped steel (501), and the second clamping block (202) is matched with the inner cavity of the C-shaped steel (501); the second clamping block (202) comprises a first mounting plate (204) and a second mounting plate (210) arranged in parallel and a second side plate (206) fixedly arranged on both sides of the first mounting plate (204) and the second mounting plate (210), and the second side plate (206) is arranged perpendicularly to the first mounting plate (204); and the second mounting plate (210) is fixedly connected perpendicularly to the second supporting plate (201).

Images