Concrete-filled steel tube combination column structure applied to residence

Abstract

The utility model relates to the technical field of building structures, in particular to a concrete-filled steel tube combination column structure applied to a house, which can effectively solve the problems of exposure of indoor beam columns of a steel structure house, inflexible building layout, inconvenience in arrangement of lateral load resistance components, large field wet construction amount and the like, is high in assembly degree, improves the industrialization level and is suitable for large-scale popularization and application. Components are convenient to manufacture and mount, and the house comfort is improved; comprising a solid web type concrete filled steel tube combination column, a batten plate type concrete filled steel tube combination column, a flat concrete filled steel tube column, an H-shaped steel beam, a steel support, a steel plate wall, a steel plate concrete combination shear wall, a reinforced concrete shear wall and an assembly type steel bar truss floor support plate, a combination column frame structure system, a combination column and flat column frame structure system, a combination column frame-supporting structure system, a combination column and flat column frame-supporting structure system and the like can be formed through the components.

Description

Technical Field

[0001] This utility model relates to the technical field of building structures, and in particular to a steel-concrete composite column structure for residential buildings. Background Technology

[0002] Currently, the country is strongly advocating prefabricated buildings to promote the development of the construction industry. At the same time, my country is facing a serious overcapacity problem in the steel industry. Steel structure building systems, as a naturally green prefabricated building method, not only meet the national requirements for the transformation of the construction industry but also alleviate steel overcapacity. Furthermore, vigorously promoting steel structure housing is beneficial to the country's long-term sustainable development.

[0003] Prefabricated buildings are mainly divided into prefabricated concrete buildings, prefabricated steel structure buildings, and prefabricated wood structure buildings. Compared with cast-in-place structures, prefabricated concrete buildings are only different in construction methods. However, prefabricated concrete buildings have the following problems: (1) The weight of individual components is large, making transportation and installation difficult; (2) The main stress nodes and shear wall confinement edges need to be cast in place, and the overall construction period cannot be shortened; (3) The connection method of stress nodes is difficult to construct, and its seismic performance and overall performance need further research. As a construction form with a long history, prefabricated wood structure is greatly affected by climate and geographical environment, consumes a lot of wood, and is not suitable for high-rise buildings. Therefore, it is not suitable for vigorous development in China. Currently, the commonly used prefabricated steel structure systems are mainly frame structures, frame-supported structures, or frame-core tube structures. The above systems have the following problems in engineering applications: (1) The beam and column components have large cross sections, causing the beams and columns to protrude from the wall surface, affecting the use effect of the residence; (2) The supporting maintenance system is not perfect, and the interior and exterior walls are mostly made of brick; (3) The parts involving cast-in-place still need to be supported by formwork and tied with steel bars on site, resulting in a large amount of wet work on site and complex construction. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a steel-concrete composite column structure for residential buildings. This structure effectively solves issues such as exposed interior beams and columns, inflexible building layout, inconvenient arrangement of lateral force resisting components, and large amount of on-site wet work. It features a high degree of prefabrication, improves industrialization, facilitates component fabrication and installation, and enhances residential comfort.

[0005] This utility model discloses a steel-concrete composite column structure for residential buildings, comprising a solid-web steel-concrete composite column, a gusseted steel-concrete composite column, a flat steel-concrete column, an H-beam, steel bracing, a steel plate wall, a steel-concrete composite shear wall, a reinforced concrete shear wall, and a prefabricated steel truss floor slab. The H-beams are connected to the composite columns via U-shaped plates. These components together form: a composite column frame structure system, a composite column + flat column frame structure system, a composite column frame-bracing structure system, and a composite column + flat column frame-bracing structure system. The structural systems include composite column frame-steel plate wall structural systems, composite column + flat column frame-steel plate wall structural systems, composite column frame-composite wall structural systems, composite column + flat column frame-composite wall structural systems, composite column frame-concrete core tube structural systems, composite column + flat column frame-concrete core tube structural systems, composite column frame-steel plate wall core tube structural systems, composite column + flat column frame-bracing + steel plate wall structural systems, and composite wall structural systems. This application has the following advantages: 1. High degree of prefabrication: the main structural components and interior and exterior wall panels are prefabricated in the factory. Simultaneously, the kitchen and bathroom adopt integrated factory prefabrication, greatly shortening the construction period during on-site installation. Furthermore, integrated kitchens and bathrooms can achieve dry construction, integrated drainage, and rapid installation; 2. The use of a steel-concrete composite column structural system significantly improves the lateral stiffness of the structure. Lateral stiffness-resisting components are arranged in areas such as elevators, stairwells, gable walls, and partition walls, improving the lateral stiffness of the structure while effectively isolating elevator noise pollution. The steel-concrete composite columns are made to be the same thickness as the walls, avoiding protruding corners in the interior walls and columns. At the same time, the installation of steel-concrete composite columns creates a larger interior space, increasing the flexibility of the interior layout and meeting the diverse requirements of the owners for room arrangement in the future; 3. The large space structure is adopted, and the internal building functional areas can be freely divided according to the owner's needs.

[0006] Preferably, the solid-web steel-concrete composite column includes an end steel pipe A, a central square steel pipe 2A, and a continuous connecting plate. The central square steel pipe 2A and the end steel pipe A are connected as one unit by symmetrically arranged continuous connecting plates. The continuous connecting plates are symmetrically arranged on both sides of the end steel pipe A and the central square steel pipe 2A, and are connected to the side walls of the central square steel pipe 2A and the end steel pipe A. After the continuous connecting plates are connected to the side walls of the central square steel pipe 2A and the end steel pipe A, concrete is poured inside the closed cavity to form a solid-web steel-concrete composite column. The combination between the central square steel pipe 2A and the end steel pipe A can form L-shaped, T-shaped, cross-shaped, and other irregular cross sections.

[0007] Preferably, the solid-web steel-concrete composite column can also be composed of a continuous connecting steel plate and end steel pipes A. The end steel pipes A are connected to each other by connecting plates, forming L-shaped, T-shaped, or cross-shaped columns. The steel pipe columns and connecting plates form a central cavity, which is filled with concrete. An L-shaped column consists of two steel pipe columns connected by two L-shaped connecting plates. A T-shaped column consists of three steel pipe columns connected by two L-shaped connecting plates and one straight connecting plate. A cross-shaped column consists of four steel pipe columns connected by four straight connecting plates. The steel pipe columns and connecting plates form a central cavity, which is filled with concrete, thus forming a solid-web steel-concrete composite column.

[0008] Preferably, the gusseted steel-concrete composite column includes a central square steel pipe B, an end steel pipe 2B, and connecting gussets. The central square steel pipe B and the end steel pipe 2B are connected as one unit by symmetrically arranged connecting gussets. The connecting gussets are symmetrically arranged on both sides of the central square steel pipe B and the end steel pipe 2B and are placed at equal vertical intervals.

[0009] Preferably, the H-shaped steel beam and the end steel pipe of the solid web composite column are connected by an outer ring hoop connection. The outer ring hoop connection is made by setting an outer ring hoop on the corresponding upper and lower flanges of the steel beam on the end square steel pipe, welding the outer ring hoop to the side wall of the end steel pipe, and then connecting the end of the steel beam to the outer ring hoop by welding.

[0010] Preferably, when the H-shaped steel beam is connected only to the flat steel tube concrete column in the width direction, a U-shaped plate connection method is used. When the H-shaped steel beam is connected to the flat steel tube concrete column in both the length and width directions, an outer ring hoop connection method is used. When the H-shaped steel beam is connected only to the flat steel tube concrete column in the width direction, a U-shaped plate connection method is used. The U-shaped plate is positioned at corresponding positions on the upper and lower flanges of the H-shaped steel beam. The U-shaped plate includes ear plates and end plates, and the ear plates and end plates are connected to the flat steel tube concrete column. Welding: When the H-shaped steel beam is connected only along the length of the flat steel tube concrete column, a U-shaped plate connection is used. The U-shaped plate is positioned at the corresponding positions of the upper and lower flanges of the H-shaped steel beam. One side of the U-shaped plate is welded to the short side of the flat column, and the other side of the plate passes perpendicularly through the wall of the steel tube along the long side of the flat column and is welded to the end plate to form the U-shaped plate. When the H-shaped steel beam is connected to the flat steel tube concrete column in both the length and width directions, an outer ring hoop connection is used. The outer ring hoop is positioned at the corresponding positions of the upper and lower flanges of the H-shaped steel beam. The steel beam along the short side of the flat column is directly welded to the outer ring hoop. An insert plate is installed inside the steel beam along the long side of the flat column, perpendicular to the wall plate and hoop plate along the long side of the flat column, and welded to them.

[0011] Preferably, composite columns and flat columns can be used in combination, and steel bracing, steel plate walls, steel plate concrete composite shear walls, and concrete shear walls can be used in combination; composite columns are mainly set at the corners of buildings and in locations with greater stress; for locations with openings, steel plate walls, steel tube concrete composite shear walls, and concrete shear walls are selected as lateral resisting members.

[0012] Compared with existing technologies, the beneficial effects of this utility model are as follows: 1. High degree of prefabrication: the main structural components and interior and exterior wall panels are prefabricated in the factory. Simultaneously, the kitchen and bathroom adopt integrated factory prefabrication, greatly shortening the construction period during on-site installation. Furthermore, the integrated kitchen and bathroom can achieve dry construction, integrated drainage, and rapid installation; 2. The use of a steel-concrete composite column structure system significantly improves the lateral stiffness of the structure. Lateral stiffness-resisting components are arranged in areas such as elevators, stairwells, gable walls, and partition walls, improving the lateral stiffness of the structure while effectively isolating elevator noise pollution. The steel-concrete composite columns are made to be the same thickness as the walls, avoiding protruding corners in the interior walls. At the same time, the installation of the steel-concrete composite columns creates a larger interior space, increasing the flexibility of the interior layout and meeting the diverse requirements of the owners for room arrangement; 3. The adoption of a large-space structure allows for free division of internal building functions according to the owner's needs. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of the combined column frame-support system of this utility model;

[0014] Figure 2 This is a structural schematic diagram of the combined column frame-steel plate wall system of this utility model;

[0015] Figure 3 This is a structural schematic diagram of the combined column + flat column frame - combined shear wall system of this utility model;

[0016] Figure 4 This is a structural schematic diagram of the solid-web steel-concrete composite column of this utility model;

[0017] Figure 5 This is another structural schematic diagram of the solid-web steel-concrete composite column of this utility model;

[0018] Figure 6 This is a structural schematic diagram of the gusseted steel-concrete composite column of this utility model;

[0019] Figure 7 This is a structural schematic diagram of the steel plate concrete composite shear wall of this utility model;

[0020] Figure 8 This is a structural schematic diagram of the connection between the flat steel tube concrete column and the H-shaped steel beam of this utility model;

[0021] Figure 9This is a three-dimensional schematic diagram of the composite column frame system of this utility model;

[0022] Figure 10 This is a three-dimensional schematic diagram of the combined column + flat column frame system of this utility model;

[0023] Figure 11 This is a three-dimensional schematic diagram of the combined column + flat column frame-support system of this utility model;

[0024] Figure 12 This is a three-dimensional schematic diagram of the column frame-steel plate wall system of this utility model;

[0025] Figure 13 This is a three-dimensional schematic diagram of the composite column frame-composite shear wall system of this utility model;

[0026] Figure 14 This is a three-dimensional schematic diagram of the composite column frame-concrete core tube system of this utility model;

[0027] Figure 15 This is a three-dimensional schematic diagram of the combined column + flat column frame - concrete core tube system of this utility model;

[0028] Figure 16 This is a three-dimensional schematic diagram of the combined column + flat column frame - supporting steel plate wall system of this utility model;

[0029] Figure 17 This is a three-dimensional schematic diagram of the composite column frame-steel plate wall core tube system of this utility model;

[0030] Figure 18 This is a three-dimensional schematic diagram of the combined shear wall system of this utility model;

[0031] Figure 19 This is a three-dimensional schematic diagram of the bidirectional connection between the steel beam and the flat column of this utility model;

[0032] Figure 20 This is a three-dimensional schematic diagram of the connection node between the L-shaped composite column and the steel beam of this utility model;

[0033] Figure 21 This is a three-dimensional schematic diagram of the connection node between the T-shaped composite column and the steel beam of this utility model;

[0034] Figure 22 This is a three-dimensional schematic diagram of the connection node between the cross-shaped combined column and the steel beam of this utility model;

[0035] Figure 23 This is a three-dimensional schematic diagram of the steel ring hoop in this utility model;

[0036] The attached diagram is labeled as follows: 1. Solid-web steel-concrete composite column; 11. End steel pipe A; 12. Central square steel pipe 2A; 13. L-shaped connecting plate; 14. Straight connecting plate; 2. Bracketed steel-concrete composite column; 21. Central square steel pipe B; 22. End steel pipe 2B; 23. Connecting brace; 3. Flat steel-concrete column; 4. H-shaped steel beam; 5. Steel brace; 6. Steel plate wall; 7. Steel plate-concrete composite shear wall; 71. Rectangular steel pipe; 72. Connecting steel plate; 73. Fixing bolt assembly; 74. Screw base; 75. Screw; 76. Limiting nut; 77. Fixing nut; 78. Upper sealing plate; 79. Lower sealing plate; 9. U-shaped plate; 91. Ear plate; 92. End plate. Detailed Implementation

[0037] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0038] like Figures 1 to 23As shown, a steel-concrete composite column structure system for residential buildings includes a solid-web steel-concrete composite column 1, a gusseted steel-concrete composite column 2, a flat steel-concrete column 3, an H-shaped steel beam 4, a steel brace 5, a steel plate wall 6, a steel-concrete composite shear wall 7, a reinforced concrete shear wall, and a prefabricated steel truss floor slab. The solid-web steel-concrete composite column 1 includes an end steel pipe A11, a central square steel pipe 2A12, and a continuous connecting gusseted plate. The central square steel pipe 2A12 and the end steel pipe A11 are connected as one unit by symmetrically arranged continuous connecting gusseted plates. The continuous connecting gusseted plates are symmetrically arranged on the end steel pipe A11 and... The two sides of the central square steel pipe 2A12 are connected to the side walls of the central square steel pipe 2A12 and the end steel pipe A11. The solid-web steel-concrete composite column 1 can also be composed of a continuous connecting steel plate and the end steel pipe A11. The end steel pipe A11 columns are connected by connecting plates, forming L-shaped, T-shaped, and cross-shaped structures. The steel pipe columns and connecting plates form a central cavity, which is filled with concrete. The L-shaped column consists of two steel pipe columns connected by two L-shaped connecting plates 13. The T-shaped column consists of three steel pipe columns connected by two L-shaped connecting plates 13 and one connecting plate 14. The cross-shaped connecting plates 14 connect the columns, and the four steel pipe columns are connected by four straight connecting plates 14. The plate-type steel-concrete composite column 2 includes a central square steel pipe B21, end steel pipes 2B22, and connecting plates 23. The central square steel pipe B21 and end steel pipes 2B22 are connected as one unit by symmetrically arranged connecting plates 23. The connecting plates 23 are symmetrically arranged on both sides of the central square steel pipe B21 and end steel pipes 2B22 and are placed at equal vertical intervals. The H-shaped steel beam 4 is connected to the solid-web steel-concrete composite column 1 and the central square steel pipe B21 by an outer ring hoop connection. For the connection, the outer ring hoop type connection node is constructed by setting an outer ring hoop at the corresponding upper and lower flange positions of the steel beam on the end square steel pipe. The outer ring hoop is welded to the side wall of the end steel pipe, and then the end of the steel beam is connected to the outer ring hoop by welding. When the H-shaped steel beam 4 is only connected to the flat steel pipe concrete column 3 in the width and length directions, a U-shaped plate connection method is used. When the H-shaped steel beam 4 is connected to the flat steel pipe concrete column 3 in both the length and width directions, an outer ring hoop connection method is used. Composite columns and flat columns can be used in combination. Steel supports 5, steel plate walls 6, steel plate concrete composite shear walls 7, and concrete shear walls can be used in combination.

[0039] After the continuous connecting plate is connected to the side walls of the central square steel pipe 2A12 and the end steel pipe A11, concrete is poured inside the closed cavity to form a solid-web steel-concrete composite column. The combination of the central square steel pipe 2A12 and the end steel pipe A11 can form L-shaped, T-shaped, cross-shaped, and other irregular cross-sections. When the H-shaped steel beam 4 is only connected to the flat steel-concrete column 3 in the width direction, a U-shaped plate connection method is used. The U-shaped plate 9 is set at the corresponding positions of the upper and lower flanges of the H-shaped steel beam 4. The U-shaped plate 9 includes ear plates 91 and end plates 92. 2. Welded to the flat steel tube concrete column 3; When the H-shaped steel beam 4 is only connected to the flat steel tube concrete column 3 in the length direction, a U-shaped plate connection method is used for connection. The U-shaped plate 9 is set at the corresponding positions of the upper and lower flanges of the H-shaped steel beam 4. The ear plate 91 on one side of the U-shaped plate 9 is welded to the short side of the flat column, and the ear plate 91 on the other side passes vertically through the steel tube wall of the long side of the flat column and is welded to the end plate to form a U-shaped plate; When the H-shaped steel beam 4 is connected to the flat steel tube concrete column 3 in both the length and width directions, an outer ring hoop connection method is used for connection. The outer ring hoop is set at the corresponding positions of the upper and lower flanges of the H-shaped steel beam 4. The steel beams along the short side of the flat column are directly welded to the outer ring hoop. Insert plates are installed on the inner side of the steel beams along the long side of the flat column. The insert plates are perpendicular to the wall panels and hoop plates along the long side of the flat column and are welded to them. Composite columns are mainly set at the corners of buildings and in locations with high stress. For locations with openings, steel plate walls, steel-concrete composite shear walls, and concrete shear walls are selected as lateral resisting members. The rectangular rigid tube 71 on the opening side is placed on the limiting nut 76, and the screw 75 passes through the steel plate. Then, the rectangular rigid tube 71 on the opening side and the screw 75 are welded to the steel plate directly through the fixing nut 77 or the screw to form an integral whole. Sealing steel plates are welded to the upper and lower parts of the composite wall, and then concrete is poured to form the composite wall.

[0040] The above components can be used to construct: composite column frame structure system, composite column + flat column frame structure system, composite column frame-bracing structure system, composite column + flat column frame-bracing structure system, composite column frame-steel plate wall structure system, composite column + flat column frame-steel plate wall structure system, composite column frame-composite wall structure system, composite column + flat column frame-composite wall structure system, composite column frame-concrete core tube structure system, composite column + flat column frame-concrete core tube structure system, composite column frame-steel plate wall core tube structure system, composite column + flat column frame-bracing + steel plate wall structure system, and composite wall structure system.

[0041] The composite column frame structure system consists of composite columns, steel beams, and floor slabs;

[0042] The composite column + flat column frame structure system consists of composite columns, flat columns, steel beams and floor slabs;

[0043] The composite column frame-braced structural system consists of composite columns, steel beams, steel bracing, and floor slabs.

[0044] The composite column + flat column frame-supported structural system consists of composite columns, flat columns, steel beams, steel supports, and floor slabs.

[0045] The composite column frame-steel plate wall structure system consists of composite columns, steel beams, steel plate walls, and floor slabs;

[0046] The composite column + flat column frame - steel plate structure system consists of composite columns, flat columns, steel beams, steel plate walls and floor slabs;

[0047] The composite column frame-composite wall structural system consists of composite columns, steel beams, steel plate concrete composite shear walls, and floor slabs;

[0048] The composite column + flat column frame - composite wall structural system consists of composite columns, flat columns, steel beams, steel plate concrete composite shear walls and floor slabs;

[0049] The composite column frame-concrete core tube structural system consists of composite columns, steel beams, a concrete core tube, and floor slabs.

[0050] The composite column + flat column frame - concrete core tube structural system consists of composite columns, flat columns, steel beams, a concrete core tube, and floor slabs.

[0051] The composite column frame-steel plate wall core tube structural system consists of composite columns, steel beams, steel plate wall core tubes, and floor slabs;

[0052] The composite column + flat column frame - bracing + steel plate wall structural system consists of composite columns, flat columns, steel bracing, steel plate walls, steel beams, and floor slabs. The steel plate walls can be installed at doorway locations within the walls.

[0053] The composite wall structure system consists of steel plate concrete composite shear walls, steel beams, and floor slabs;

[0054] When the number of floors in a building is no more than 10, the following structural systems can be selected: composite column frame structure system and composite column + flat column frame structure system. When the number of floors in a building is between 10 and 26, the following structural systems can be selected: composite column frame-braced structure system, composite column + flat column frame-braced structure system, composite column frame-steel plate wall structure system, composite column frame-composite wall structure system, and composite column + flat column frame-composite wall structure system. When the number of floors in a building is more than 26, the following structural systems can be selected: composite column frame-concrete core tube structure system, composite column + flat column frame-concrete core tube structure system, composite column frame-steel plate wall core tube structure system, composite column + flat column frame-braced + steel plate wall structure system, and composite wall structure system.

[0055] like Figures 1 to 23As shown, this utility model discloses a steel-concrete composite column structure for residential buildings. During operation, all steel components involved in the structural system are prefabricated in the factory and transported to the site for installation. The solid-web steel-concrete composite column 1, the plate-jointed steel-concrete composite column 2, the flat steel-concrete column 3, and the prefabricated steel-plate concrete composite shear wall components can be installed one column every 2-3 floors. The splicing positions between columns and between steel-plate concrete composite shear walls are easily set at a height of 1 / 3 of the floor height. The on-site installation sequence of the composite column structure system is as follows: first, the plate-jointed steel-concrete composite column 2 and the solid-web steel-concrete composite column 1 are installed according to their positioning. Then, the steel-plate concrete composite shear wall 7 is connected to the solid-web steel-concrete composite column 1 according to its arrangement to form an irregular shear wall. Next, the H-shaped steel beam 4 is connected to the composite column and the steel-plate concrete composite shear wall 7. Finally, the prefabricated steel truss floor deck is installed to form a stable spatial structure. After the steel components are installed, concrete is poured into the steel pipes and shear walls.

[0056] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A steel-concrete composite column structure for residential buildings, characterized in that, The system includes solid-web steel-concrete composite columns (1), gusseted steel-concrete composite columns (2), flat steel-concrete columns (3), H-beams (4), steel supports (5), steel plate walls (6), steel plate concrete composite shear walls (7), reinforced concrete shear walls, and prefabricated steel truss floor slabs. The H-beams (4) are connected to the composite columns via U-shaped plates. The above components can form: composite column frame structure system, composite column + flat column frame structure system, composite column frame - support structure system, composite column + flat column frame - support structure system, composite column frame - steel plate wall structure system, composite column + flat column frame - steel plate wall structure system, composite column frame - composite wall structure system, composite column + flat column frame - composite wall structure system, composite column frame - concrete core tube structure system, composite column + flat column frame - concrete core tube structure system, composite column frame - steel plate wall core tube structure system, composite column + flat column frame - support + steel plate wall structure system, and composite wall structure system.

2. The steel-concrete composite column structure for residential use as described in claim 1, characterized in that, The solid-web steel-concrete composite column (1) includes an end steel pipe A (11), a central square steel pipe 2A (12), and a continuous connecting plate. The central square steel pipe 2A (12) and the end steel pipe A (11) are connected as one unit by symmetrically arranged continuous connecting plates. The continuous connecting plates are symmetrically arranged on both sides of the end steel pipe A (11) and the central square steel pipe 2A (12) and are connected to the side walls of the central square steel pipe 2A (12) and the end steel pipe A (11).

3. A steel-concrete composite column structure for residential use as described in claim 2, characterized in that, The solid-web steel-concrete composite column (1) can also be composed of a continuous connecting steel plate and an end steel pipe A (11). The end steel pipe A (11) columns are connected by connecting plates to form L-shaped, T-shaped, and cross-shaped columns. The steel pipe columns and connecting plates form a central cavity, and concrete is poured into the central cavity and the steel pipe columns. The L-shaped column is composed of two steel pipe columns, which are connected by two L-shaped connecting plates (13). The T-shaped column is composed of three steel pipe columns, which are connected by two L-shaped connecting plates (13) and one straight connecting plate (14). The cross-shaped column is composed of four steel pipe columns, which are connected by four straight connecting plates (14).

4. A steel-concrete composite column structure for residential use as described in claim 1, characterized in that, The gusseted steel-concrete composite column (2) includes a central square steel pipe B (21), an end steel pipe 2B (22) and a connecting gusset plate (23). The central square steel pipe B (21) and the end steel pipe 2B (22) are connected as one unit by symmetrically arranged connecting gusset plates (23). The connecting gusset plates (23) are symmetrically arranged on both sides of the central square steel pipe B (21) and the end steel pipe 2B (22) and are placed at equal vertical intervals.

5. A steel-concrete composite column structure for residential use as described in claim 4, characterized in that, The H-shaped steel beam (4) is connected to the solid web steel-concrete composite column (1) and the central square steel pipe B (21) through an outer ring hoop connection. The outer ring hoop connection node is constructed by setting an outer ring hoop at the corresponding upper and lower flange positions of the steel beam on the end square steel pipe, welding the outer ring hoop to the side wall of the end steel pipe, and then connecting the end of the steel beam with the outer ring hoop by welding.

6. A steel-concrete composite column structure for residential use as described in claim 1, characterized in that, When the H-shaped steel beam (4) is connected only to the flat steel tube concrete column (3) in the width direction, a U-shaped plate connection method is used for connection. When the H-shaped steel beam (4) is connected to the flat steel tube concrete column (3) in both the length and width directions, an outer ring hoop connection method is used for connection.

7. A steel-concrete composite column structure for residential use as described in claim 1, characterized in that, Composite columns and flat columns can be used in combination. Steel bracing (5), steel plate wall (6), steel plate concrete composite shear wall (7), and concrete shear wall can be used in combination.

Images