Connecting method for steel frame structure and concrete combined house

Abstract

The invention discloses a connecting method for a steel frame structure and a concrete combined house, and relates to the technical field of house construction. The structure corresponding to the method comprises a prefabricated concrete wall body, corner limiting assemblies, inclined supporting rods and post-pouring connecting steel bars. The method comprises the steps that a prefabricated concrete wall is prepared in a factory; the prefabricated concrete wall body is temporarily supported through an inclined supporting rod after being hoisted on site; a corner limiting assembly is installed at the corner of a prefabricated concrete wall, the corner limiting assembly comprises a supporting base, an L-shaped horizontal bearing frame, a coarse positioning unit and a vertical limiting unit, coarse positioning of the prefabricated concrete wall is achieved through the coarse positioning unit, and then accurate fine adjustment of perpendicularity and the plane position is conducted through the vertical limiting unit; and finally, reinforcing steel bars are bound and concrete is poured to form an overall stress structure. Through graded positioning and adjustable limiting design, the installation deviation is effectively compensated, the installation precision and efficiency are improved, the labor cost is reduced, and meanwhile, the assembly adopts modular design and can be repeatedly used.

Description

Technical Field

[0001] This invention relates to the field of housing construction technology, and in particular to a method for connecting a steel frame structure with a concrete composite house. Background Technology

[0002] With the rapid development of prefabricated building technology, steel frame structure and concrete composite houses combine the advantages of steel structure, such as lightweight and high strength and convenient construction, with concrete structure, such as high rigidity and good fire resistance. They are increasingly widely used in residential and public buildings.

[0003] During construction, the connection between adjacent precast concrete walls, especially the connection between perpendicular adjacent walls at corners, is crucial to the overall structural stability and installation accuracy. Currently, precast concrete walls are often temporarily supported by diagonal braces, supplemented by rigid support structures such as welded angle steel to position and fix the corners. However, due to deviations in the production, transportation, and on-site ground flatness of precast walls, installation errors and micro-deformations are prone to occur after hoisting.

[0004] Existing connection supports mostly employ rigid structures, such as welded angle steel or rigid brackets. While these provide some fixation, they are ill-suited to accommodate wall installation errors. During construction, repeated adjustments to wall positioning are necessary, easily leading to stress concentration in the contact area. This stress concentration can damage embedded wall components or edge members, and negatively impact subsequent on-site pouring: firstly, the stressed formwork system is prone to loosening or displacement during pouring and vibration, causing concrete slurry leakage, affecting pouring quality and creating safety hazards; secondly, slight wall misalignment under rigid constraints can be transmitted to the uncured cast-in-place joint area, potentially forming initial micro-cracks within the concrete, severely weakening the overall density and load-bearing capacity of the joint; furthermore, poor connection between temporary and permanent supports, and the potential for secondary wall deformation after partial support removal, increase the quality risks of the connection joint. Summary of the Invention

[0005] The purpose of this invention is to solve the problems mentioned in the background art by proposing a method for connecting steel frame structures and concrete composite houses.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A method for connecting a steel frame structure to a concrete composite building, wherein the structure corresponding to the connection method includes precast concrete walls, corner limiting components, diagonal braces, and post-cast connecting steel bars; the connection method includes the following steps:

[0008] S1: The precast concrete wall is prefabricated in the factory, and the edges of the precast concrete wall are pre-installed with pre-extended anchored steel bars;

[0009] S2: The construction site has pre-installed post-cast connecting steel bars that are compatible with the precast concrete wall. The precast concrete wall is hoisted to the corresponding installation position, and multiple diagonal braces are installed on the side wall of the precast concrete wall for temporary support and fixation.

[0010] S3: Install a corner limiting component at the corner joint of vertically adjacent precast concrete walls. The corner limiting component includes a support base, a coarse positioning unit and a vertical limiting unit. The coarse positioning unit is used for coarse positioning between vertically adjacent precast concrete walls, and the vertical limiting unit is used for precise correction of verticality and planar position.

[0011] S4: Tie the pre-cast anchored steel bars of the precast concrete wall to the post-cast connection steel bars on the construction site. The overlapping area of ​​the two is the post-cast section area. Set up formwork in the post-cast section area to form a closed cavity and pour concrete into the cavity.

[0012] As a further aspect of the present invention: in step S3, the corner limiting component is installed in the following order:

[0013] First, the support base is fixedly connected to the ground, and then the coarse positioning unit is installed to complete the coarse positioning between vertically adjacent precast concrete walls.

[0014] Then install the vertical limiting unit and remove the coarse positioning unit;

[0015] Finally, by operating the vertical limiting unit to move upward or downward in the vertical direction, the verticality and planar position of the precast concrete wall are precisely corrected simultaneously.

[0016] As a further embodiment of the present invention: the corner limiting component also includes an L-shaped horizontal support frame, the contact surface of the L-shaped horizontal support frame is closely attached to the surface of the precast concrete wall, the L-shaped horizontal support frame is a spliced ​​profile structure, which is spliced ​​from multiple frame sections, and each frame section is provided with several spaced adjustment holes.

[0017] The bottom of the support base is fixed to the ground by bolts, and the top of the support base has a horizontally set mounting plate integrally formed.

[0018] As a further aspect of the present invention: the coarse positioning unit includes a vertical column and multiple floating sleeves. The bottom end of the vertical column is provided with a first mounting base. Multiple spherical nodes are spaced apart along the axial direction at the upper end of the vertical column. Each spherical node is movably fitted with a floating sleeve. A horizontal screw is integrally extended from the side of each floating sleeve, and a nut is provided on the horizontal screw.

[0019] The first mounting base has a first mounting hole and is fixedly connected to the mounting plate through the first mounting hole. After the horizontal screw passes through the adjustment hole, it is locked and positioned by a nut, thereby fixing the coarse positioning unit to the L-shaped horizontal support frame.

[0020] As a further embodiment of the present invention: the vertical limiting unit includes a vertical support column, a second mounting base and a positioning bracket, the second mounting base is fixed to the bottom end of the vertical support column, and a second mounting hole is provided on the second mounting base, and is fixedly connected to the mounting plate through the second mounting hole;

[0021] The positioning bracket is slidably sleeved on the vertical support column. A rack is axially arranged on the side of the vertical support column facing the precast concrete wall. A gear is provided inside the positioning bracket corresponding to the rack position to mesh with the rack. An adjustment knob is provided outside the positioning bracket. The adjustment knob is connected to the gear transmission and is used to drive the gear to move up and down along the rack, thereby driving the positioning bracket to move synchronously.

[0022] The vertical support column is provided with a sliding groove along the axial direction on the side away from the precast concrete wall. The positioning card seat is provided with a slider that slides in accordance with the sliding groove position. The side wall of the positioning card seat is provided with a locking knob, which is used to lock the slider in the sliding groove, thereby realizing the height locking of the positioning card seat on the vertical support column.

[0023] As a further aspect of the present invention: the positioning bracket has an integrally formed U-shaped mounting base on the side facing the precast concrete wall, and the U-shaped mounting base has a connecting hole, which is fixedly connected to the L-shaped horizontal support frame.

[0024] As a further aspect of the present invention: the spherical node is slidably fitted onto a vertical column, the upper end of the vertical column is provided with a threaded section, and the upper and lower sides of the spherical node are fixed axially on the vertical column by nuts.

[0025] As a further aspect of the present invention: the length of the diagonal brace is adjustable, and both ends are equipped with hinged connectors. One end of the hinged connector is fixedly connected to the precast concrete wall, and the other end of the hinged connector is fixedly connected to the ground.

[0026] As a further aspect of the present invention: the shape of the post-cast section is L-shaped, T-shaped or straight, and the reserved anchoring steel bars are evenly arranged along the extension direction of the post-cast section, and all of them are anchored into the concrete of the post-cast section and tied with the post-cast connecting steel bars to form an integral load-bearing structure.

[0027] As a further aspect of the present invention: the L-shaped horizontal support frame is provided with rollers on the side facing the precast concrete wall, and the outer circumferential surface of the rollers rolls and adheres to the surface of the precast concrete wall.

[0028] Compared with existing technologies, the advantages of this invention are:

[0029] 1. First, the coarse positioning unit, with the help of the spherical node and the floating sleeve, can compensate for installation deviations within a certain range and quickly complete the initial fixing of adjacent precast concrete walls. Then, the vertical limiting unit, through rack and pinion transmission and sliding block guidance, performs precise fine-tuning of verticality and planar position, reducing the time and manpower consumption of repeated adjustments in traditional installation and improving the accuracy and efficiency of precast concrete wall installation.

[0030] 2. By employing a graded operation of coarse positioning followed by fine correction and a modular, detachable design, the construction process was optimized. At the same time, modular components and reusability were achieved, ensuring the reliability and economy of the connection method. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 for Figure 1 A magnified schematic diagram of the local structure at point A;

[0033] Figure 3 This is a schematic diagram of the installation structure of the precast concrete wall of the present invention;

[0034] Figure 4 This is a schematic diagram of the installation structure of the precast concrete wall, corner limiting component, and diagonal brace of the present invention;

[0035] Figure 5 This is a schematic diagram of the installation structure of the precast concrete wall and corner limiting component of the present invention;

[0036] Figure 6 This is a schematic diagram of the corner limiting component of the present invention;

[0037] Figure 7 This is a schematic diagram of the installation structure of the L-shaped horizontal support frame, coarse positioning unit, and vertical limiting unit of the present invention;

[0038] Figure 8 This is a schematic diagram showing the disassembled structure of the L-shaped horizontal support frame, coarse positioning unit, and vertical limiting unit of the present invention;

[0039] Figure 9 This is a schematic diagram of the coarse positioning unit of the present invention;

[0040] Figure 10 This is a schematic diagram of the vertical limiting unit of the present invention;

[0041] Figure 11 for Figure 10 A magnified view of the structure at point B in the middle;

[0042] Figure 12 for Figure 10 A magnified schematic diagram of the local structure at point C;

[0043] Figure 13 This is a schematic diagram of the diagonal brace of the present invention.

[0044] In the diagram: 1. Precast concrete wall; 2. Corner limiting component; 3. Diagonal brace; 4. Post-cast connecting reinforcement; 5. Reserved anchoring reinforcement; 6. L-shaped horizontal support frame; 8. Adjustment hole; 10. Support base; 111. Mounting plate; 12. Coarse positioning unit; 13. Vertical column; 14. Floating sleeve; 15. First mounting base; 151. First mounting hole; 16. Spherical node; 17. Horizontal screw; 19. Vertical limiting unit; 20. Vertical support column; 21. Second mounting base; 211. Second mounting hole; 22. Positioning bracket; 23. Rack; 25. Adjustment knob; 26. Slide groove; 27. Slider; 28. Locking knob; 29. ​​U-shaped mounting base; 291. Connecting hole; 33. Hinged connector. Detailed Implementation

[0045] 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.

[0046] Reference Figures 1 to 5 A method for connecting a steel frame structure and a concrete composite house, wherein the corresponding structure includes a precast concrete wall 1, a corner limiting component 2, a diagonal brace 3, and a post-cast connecting steel bar 4.

[0047] Reference Figures 6 to 13 The corner limiting component 2 includes a support base 10, a coarse positioning unit 12, a vertical limiting unit 19, and an L-shaped horizontal support frame 6. The top of the support base 10 is integrally formed with a horizontally arranged mounting plate 111 for installing the coarse positioning unit 12 and the vertical limiting unit 19.

[0048] The L-shaped horizontal support frame 6 is a spliced ​​profile structure, which is composed of multiple frame sections. Each frame section has several spaced adjustment holes 8. The L-shaped horizontal support frame 6 has rollers on the side facing the precast concrete wall 1. The outer circumference of the rollers rolls and fits against the surface of the precast concrete wall 1, which can reduce the frictional resistance between the L-shaped horizontal support frame 6 and the precast concrete wall 1 and facilitate subsequent position adjustment.

[0049] The coarse positioning unit 12 includes a vertical column 13 and multiple floating sleeves 14. The bottom end of the vertical column 13 is provided with a first mounting base 15. Multiple spherical nodes 16 are arranged axially at intervals on the upper end of the vertical column 13. The spherical nodes 16 are slidably fitted onto the vertical column 13. The upper end of the vertical column 13 is provided with a threaded section. Nuts are used on the upper and lower sides of the spherical nodes 16 to achieve axial positioning and fixation of the spherical nodes 16 on the vertical column 13.

[0050] Each spherical node 16 is externally fitted with a floating sleeve 14. The horizontal screw 17 extending from the side of the floating sleeve 14 passes through the adjustment hole 8 of the L-shaped horizontal support frame 6 and is locked in place by a nut, thus completing the fixation of the coarse positioning unit 12 and the L-shaped horizontal support frame 6.

[0051] By utilizing the movable cooperation between the spherical node 16 and the floating sleeve 14, the slight tilt and installation deviation of the precast concrete wall 1 after hoisting are compensated within a certain angle range. By adjusting the position of the horizontal screw 17 in the adjustment hole 8, the vertically adjacent precast concrete wall 1 is quickly confined to the preset installation area to achieve coarse positioning.

[0052] The vertical limiting unit 19 includes a vertical support column 20, a second mounting base 21 and a positioning bracket 22. The second mounting base 21 is fixed to the bottom end of the vertical support column 20, and a second mounting hole 211 is provided on the second mounting base 21, and is fixedly connected to the mounting plate 111 through the second mounting hole 211.

[0053] The positioning bracket 22 is slidably sleeved on the vertical support column 20. The vertical support column 20 is axially provided with a rack 23 on the side facing the precast concrete wall 1. The positioning bracket 22 is provided with a gear that meshes with the rack 23 at the corresponding position inside the rack 23. The positioning bracket 22 is provided with an adjustment knob 25 on the outside. The adjustment knob 25 is connected to the gear transmission and is used to drive the gear to move up and down along the rack 23, thereby driving the positioning bracket 22 to move synchronously.

[0054] A sliding groove 26 is provided axially on the side of the vertical support column 20 away from the precast concrete wall 1. A slider 27 is provided inside the positioning card seat 22 corresponding to the position of the sliding groove 26 and slidingly engaged with the sliding groove 26. A locking knob 28 is provided on the side wall of the positioning card seat 22. The locking knob 28 is used to lock the slider 27 in the sliding groove 26, thereby realizing the height locking of the positioning card seat 22 on the vertical support column 20.

[0055] The positioning bracket 22 is fixed to the L-shaped horizontal support frame 6 via the integrally formed U-shaped mounting base 29 and the connecting hole 291.

[0056] The connection method includes the following steps:

[0057] S1: Factory Prefabrication and On-site Foundation Preparation

[0058] Precast concrete wall 1 according to design dimensions in the factory, and pre-installed anchoring steel bars 5 are pre-installed on the edge of the wall. The pre-installed anchoring steel bars 5 are evenly distributed along the connection end of the precast concrete wall 1 to ensure effective lap joint with the on-site steel bars. At the same time, the precast concrete wall 1 is reserved with bolt holes required for installation, and holes can also be drilled on-site as needed.

[0059] Clean the ground in the installation area to ensure that the flatness of the ground meets the construction requirements; according to the design drawings, pre-cast post-connection steel bars 4 are pre-cast on the ground. The position and quantity of the post-cast connection steel bars 4 correspond to the reserved anchor steel bars 5 of the precast concrete wall 1, laying the foundation for subsequent binding and connection.

[0060] S2: Hoisting and temporary support of precast concrete wall 1

[0061] Using lifting equipment, the precast concrete wall 1 is hoisted to the preset installation position. The approximate position of the precast concrete wall 1 is adjusted to ensure that the bottom of the precast concrete wall 1 is aligned with the preset baseline on the ground, thus initially ensuring that the horizontal and vertical deviations of the precast concrete wall 1 are within the allowable range.

[0062] Multiple adjustable-length diagonal braces 3 are symmetrically installed on the side wall of the precast concrete wall 1. The two ends of the diagonal braces 3 are fixedly connected to the pre-reserved bolt holes of the precast concrete wall 1 and the ground through hinged connectors 33.

[0063] By adjusting the length of the diagonal brace 3, the precast concrete wall 1 is temporarily fixed in the preset position, limiting the horizontal displacement and overturning risk of the precast concrete wall 1; the movable design of the hinged connector 33 can compensate for the slight tilt after the wall is hoisted, avoid stress concentration caused by rigid connection, and reserve adjustment space for subsequent precise positioning.

[0064] S3: Corner limiting component 2 installation

[0065] The support base 10 is placed on the ground, and the bottom is fastened to the ground with expansion bolts to provide a rigid installation reference for the subsequent installation.

[0066] Based on the corner length of the precast concrete wall 1, multiple frame sections are spliced ​​together to form an L-shaped horizontal support frame 6, and the splicing points are fastened with bolts. The spliced ​​L-shaped horizontal support frame 6 is then attached to the corner surface of the vertically adjacent precast concrete wall 1. The rollers on the L-shaped horizontal support frame 6 roll and adhere to the wall surface, reducing frictional resistance during subsequent adjustments.

[0067] The first mounting base 15 at the bottom of the vertical column 13 of the coarse positioning unit 12 is fixedly connected to the mounting plate 111 of the support base by bolts to ensure that the column is perpendicular to the ground; according to the height position of the L-shaped horizontal support frame 6, the axial position of the spherical node 16 on the vertical column 13 is adjusted, and the spherical node 16 is fixed by locking the upper and lower nuts.

[0068] The horizontal screw 17 on the side of the floating sleeve 14 is passed through the adjustment hole 8 of the L-shaped horizontal support frame 6. According to the initial position of the wall, the extension length of the horizontal screw 17 in the adjustment hole 8 is adjusted and locked with a nut. The ball joint 16 and the floating sleeve 14 are used to compensate for the small deviation of the wall installation, and the vertically adjacent precast concrete wall 1 is quickly confined to the preset installation area to complete the rough positioning and avoid large displacement of the precast concrete wall 1 in subsequent construction.

[0069] With the coarse positioning unit 12 locked (still providing coarse positioning constraint to the wall), the corresponding positions of the U-shaped mounting base 29 and the L-shaped horizontal support frame 6 are precisely aligned, and the U-shaped mounting base 29 is fastened to the L-shaped horizontal support frame 6 by passing bolts through the connecting holes 291 of the U-shaped mounting base 29.

[0070] Adjust the height of the positioning bracket 22, and fix the second mounting base 21 at the bottom of the vertical support column 20 of the vertical limiting unit 19 to the mounting plate 111 of the support base with bolts to ensure that the vertical support column 20 is perpendicular to the ground.

[0071] At this point, the wall is simultaneously constrained by both the coarse positioning unit and the vertical limiting unit, preventing displacement during the subsequent removal of the coarse positioning unit. After confirming that the vertical limiting unit 19 is securely connected to the L-shaped horizontal support frame 6, the coarse positioning unit 12 is removed.

[0072] After the coarse positioning unit is removed, the vertical limiting unit undertakes the task of wall positioning and correction. By rotating the adjustment knob 25 on the outside of the positioning card seat 22, the positioning card seat 22 is driven to move up and down in the vertical direction through the meshing transmission of the gear and the rack 23 on the vertical support column 20, thereby driving the L-shaped horizontal support frame 6 and the precast concrete wall 1 to make synchronous fine adjustments.

[0073] During the adjustment process, tools such as laser rangefinders, plumb bobs, and spirit levels are used to monitor the verticality and planar position deviation of the wall in real time. After the verticality and planar position of the wall fully meet the design requirements, the locking knob 28 on the side wall of the positioning bracket 22 is tightened to firmly lock the slider 27 into the groove 26, thereby fixing the height of the positioning bracket 22. After that, the adjacent precast concrete wall 1 can be rigidly limited by the rigid bracket to ensure that the position of the wall does not change during the subsequent reinforcement binding and formwork erection process.

[0074] S4: The pre-cast concrete wall 1's reserved anchoring steel bars 5 are overlapped with the post-cast connection steel bars 4 on the construction site according to the design requirements. The arrangement direction of the steel bars is adjusted according to the shape of the post-cast section, such as L-shaped, T-shaped or straight, to ensure that the steel bars are evenly distributed in the post-cast section area.

[0075] Formwork is erected in the post-cast section area and fixed with tie bolts and supporting accessories to form a closed cavity, ensuring that the formwork does not deform or shift during the pouring process. Concrete is poured into the closed post-cast section cavity, and a vibrator is used to vibrate in layers during the pouring process to ensure that the concrete is dense and free from quality defects such as honeycomb and pitting. The pouring height is flush with the surface of the precast concrete wall 1 to ensure a smooth appearance of the joint.

[0076] It should be noted that the connection method provided by the present invention is not only applicable to vertically adjacent precast concrete walls 1, but also to adjacent precast concrete walls 1 in the same plane. It only requires that during the construction process, two L-shaped horizontal support frames 6 are used to splice the two L-shaped horizontal support frames 6 and keep the working surfaces of the two L-shaped horizontal support frames 6 in the same plane.

[0077] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A method for connecting a steel frame structure to a concrete composite building, characterized in that, The structure corresponding to the connection method includes a precast concrete wall (1), a corner limiting component (2), a diagonal brace (3), and post-cast connecting steel bars (4); the connection method includes the following steps: S1: The precast concrete wall (1) is prefabricated in the factory, and the edge of the precast concrete wall (1) is pre-installed with pre-reserved anchor bars (5). S2: The construction site ground is pre-cast with post-cast connecting steel bars (4) that are compatible with the precast concrete wall (1). The precast concrete wall (1) is hoisted to the corresponding installation position. Multiple diagonal braces (3) are installed on the side wall of the precast concrete wall (1) for temporary support and fixation. S3: Install a corner limiting component (2) at the corner joint of vertically adjacent precast concrete walls (1). The corner limiting component (2) includes a support base (10), a coarse positioning unit (12) and a vertical limiting unit (19). The coarse positioning unit (12) is used for coarse positioning between vertically adjacent precast concrete walls (1), and the vertical limiting unit (19) is used for precise correction of verticality and planar position. S4: Tie the reserved anchoring steel bars (5) of the precast concrete wall (1) to the post-cast connecting steel bars (4) on the construction site. The overlapping area of ​​the two is the post-cast section area. Set up a template in the post-cast section area to form a closed cavity and pour concrete into the cavity.

2. The method for connecting a steel frame structure and a concrete composite house according to claim 1, characterized in that, In step S3, the corner limiting component (2) is installed in the following order: First, fix the support base (10) to the ground, and then install the coarse positioning unit (12) to complete the coarse positioning between the vertically adjacent precast concrete walls (1); Then install the vertical limiting unit (19) and remove the coarse positioning unit (12). Finally, by operating the vertical limiting unit (19) to move upward or downward in the vertical direction, the verticality and planar position of the precast concrete wall (1) are precisely corrected.

3. The method for connecting a steel frame structure and a concrete composite house according to claim 2, characterized in that, The corner limiting component (2) also includes an L-shaped horizontal support frame (6). The contact surface of the L-shaped horizontal support frame (6) is closely attached to the surface of the precast concrete wall (1). The L-shaped horizontal support frame (6) is a spliced ​​profile structure, which is spliced ​​from multiple frame sections, and each frame section has several spaced adjustment holes (8). The bottom of the support base (10) is fixedly connected to the ground by bolts, and the top of the support base (10) is integrally formed with a horizontally arranged mounting plate (111).

4. The method for connecting a steel frame structure and a concrete composite house according to claim 3, characterized in that, The coarse positioning unit (12) includes a vertical column (13) and multiple floating sleeves (14). The bottom end of the vertical column (13) is provided with a first mounting base (15). Multiple spherical nodes (16) are spaced apart along the axial direction at the upper end of the vertical column (13). Each spherical node (16) is movably fitted with a spherical floating sleeve (14). A horizontal screw (17) is integrally extended on the side of each floating sleeve (14). A nut is provided on the horizontal screw (17). The first mounting base (15) has a first mounting hole (151) and is fixedly connected to the mounting plate (111) through the first mounting hole (151). The horizontal screw (17) passes through the adjustment hole (8) and is locked in place by the nut, thereby fixing the coarse positioning unit (12) and the L-shaped horizontal support frame (6).

5. The method for connecting a steel frame structure and a concrete composite house according to claim 4, characterized in that, The vertical limiting unit (19) includes a vertical support column (20), a second mounting base (21) and a positioning bracket (22). The second mounting base (21) is fixed to the bottom end of the vertical support column (20), and a second mounting hole (211) is provided on the second mounting base (211), and it is fixedly connected to the mounting plate (111) through the second mounting hole (211). The positioning bracket (22) is slidably sleeved on the vertical support column (20). The vertical support column (20) is axially provided with a rack (23) on the side facing the precast concrete wall (1). The positioning bracket (22) is provided with a gear that meshes with the rack (23) at the position corresponding to the rack (23). The positioning bracket (22) is provided with an adjustment knob (25) on the outside. The adjustment knob (25) is connected to the gear transmission and is used to drive the gear to move up and down along the rack (23), thereby driving the positioning bracket (22) to move synchronously. The vertical support column (20) is provided with a sliding groove (26) along the axial direction on the side away from the precast concrete wall (1). The positioning card seat (22) is provided with a slider (27) that slides and engages with the sliding groove (26) inside the corresponding position of the sliding groove (26). The side wall of the positioning card seat (22) is provided with a locking knob (28). The locking knob (28) is used to lock the slider (27) in the sliding groove (26), thereby realizing the height locking of the positioning card seat (22) on the vertical support column (20).

6. The method for connecting a steel frame structure and a concrete composite house according to claim 5, characterized in that, The positioning bracket (22) has an integrally formed U-shaped mounting base (29) on the side facing the precast concrete wall (1). The U-shaped mounting base (29) has a connecting hole (291) and is fixedly connected to the L-shaped horizontal support frame (6) through the connecting hole (291).

7. The method for connecting a steel frame structure and a concrete composite house according to claim 6, characterized in that, The spherical node (16) is slidably fitted onto the vertical column (13). The upper end of the vertical column (13) is provided with a threaded section. Nuts are used on the upper and lower sides of the spherical node (16) to achieve axial positioning and fixation of the spherical node (16) on the vertical column (13).

8. The method for connecting a steel frame structure and a concrete composite house according to claim 7, characterized in that, The length of the diagonal brace (3) is adjustable, and both ends are equipped with hinged connectors (33). One end of the hinged connector (33) is fixedly connected to the precast concrete wall (1), and the other end of the hinged connector (33) is fixedly connected to the ground.

9. The method for connecting a steel frame structure and a concrete composite house according to claim 8, characterized in that, The shape of the post-cast section is L-shaped, T-shaped or straight. The reserved anchoring steel bars (5) are evenly arranged along the extension direction of the post-cast section and are all anchored into the concrete of the post-cast section and tied with the post-cast connecting steel bars (4) to form an integral load-bearing structure.

10. The method for connecting a steel frame structure and a concrete composite house according to claim 9, characterized in that, The L-shaped horizontal support frame (6) is provided with rollers on the side facing the precast concrete wall (1), and the outer circumferential surface of the rollers rolls and fits against the surface of the precast concrete wall (1).

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