A structure of a steel tube concrete assembled building and its assembly method

Abstract

The present invention discloses a structure of a steel tube concrete prefabricated building and an assembly method thereof, wherein the structure comprises a plurality of steel tube concrete columns, connectors, steel tube concrete beams, wall panels and floor panels arranged vertically and horizontally; the assembly method comprises the following steps: (1) building a frame; (2) pouring lightweight aggregate concrete; (3) installing floor panels; (4) installing wall panels; (5) filling gaps. Beneficial effects: The structure of the present invention is simple and easy to implement; the main load-bearing structure adopts a steel tube concrete frame structure, which has a large load-bearing capacity, light weight and excellent seismic resistance; the structure is lighter and has a good stress state, which increases the usable area of ​​the house; the use of steel and concrete is saved; the construction period is short, less construction waste is generated, and dust and noise pollution during the construction process are reduced.

Description

Technical field:

[0001] The invention patent belongs to the field of building construction, and specifically relates to a structure of a steel tube concrete prefabricated building and its assembly method. Background technology:

[0002] In the construction of multi-story houses, the method currently used is mainly the traditional reinforced concrete frame construction method; the reinforced concrete frame construction method has the following problems: 1. Since the cross-sectional area of ​​the concrete beams and columns is too large, it will occupy the actual use space and form "fat beams and fat columns", which will make the use space of the house irregular and bring inconvenience to the residents; 2. Since the solidification of concrete takes time and it is not suitable for construction at low temperatures, the construction time is relatively long; 3. In the traditional construction method, a large amount of on-site construction work will cause pollution such as dust and noise, a large waste of resources and energy, and it is easy to cause safety accidents, and quality control work is difficult; 4. The traditional reinforced concrete house is too heavy and the earthquake resistance effect is not ideal. Summary of the invention:

[0003] The first object of the present invention is to provide a steel tube concrete prefabricated building structure with large bearing capacity, light weight and excellent earthquake resistance.

[0004] The second object of the present invention is to provide a method for assembling a steel tube concrete assembled building with a simple method and a short construction period.

[0005] The technical solution of the present invention discloses a structure of a steel tube concrete prefabricated building, which includes a core tube, steel tube concrete columns, connecting pieces, steel tube concrete beams, wall panels and floor panels; a plurality of the steel tube concrete columns are arranged vertically and horizontally around the core tube; the horizontally arranged steel tube concrete beams are fixedly connected between adjacent steel tube concrete columns through the connecting pieces; the horizontally arranged steel tube concrete beams are fixedly connected between the core tube and adjacent steel tube concrete columns; a plurality of the wall panels are stacked between the adjacent steel tube concrete beams in the vertical direction; the At least one connecting rod is arranged through the wall panels, one end of which is screwed with a fastening nut; a cap is fixedly arranged at the other end of the connecting rod; the floor slabs are fixedly laid between the steel tube concrete beams adjacent in the horizontal direction of each floor; the steel tube concrete column comprises a steel pipe, which is a square steel pipe or a round steel pipe, and a pouring port is opened at the bottom of the steel pipe; the steel pipe is filled with lightweight aggregate concrete, and the steel tube concrete beam comprises a box beam, which has a pouring port and an air outlet at both ends; the box beam is filled with lightweight aggregate concrete; and an anti-corrosion layer is coated on the outer surfaces of the steel pipe and the box beam.

[0006] Furthermore, the connecting member includes an L-shaped fixing plate, an L-shaped connecting plate, a vertical bolt rod, a horizontal bolt rod and a reinforcing rib plate; the L-shaped fixing plate and the L-shaped connecting plate are respectively arranged above and below the steel tube concrete beam; the vertical plate surface of the L-shaped fixing plate is fixed to the steel tube concrete column; the vertical bolt rod passes through the horizontal plate of the L-shaped fixing plate, the steel tube concrete beam and the horizontal plate of the L-shaped connecting plate; the horizontal bolt rod passes through the vertical plate of the L-shaped connecting plate and the steel tube concrete column; one end of the vertical bolt rod is screwed with a fixing nut, and the other end of the vertical bolt rod is fixed with a bolt cap head; one end of the horizontal bolt rod is screwed with a fixing nut, and the other end of the horizontal bolt rod is fixed with a bolt cap head; at least one reinforcing rib plate is arranged on the L-shaped connecting plate, and the two adjacent sides of the reinforcing rib plate are respectively fixed on the horizontal plate surface and the vertical plate surface of the L-shaped connecting plate.

[0007] Furthermore, when the steel pipe is a square steel pipe, a right-angle connecting block is welded and fixed between adjacent steel tube concrete beams; the top edge of the right-angle connecting block is welded and fixed to the horizontal plate edge of the L-shaped fixing plate, and the bottom edge of the right-angle connecting block is welded and fixed to the horizontal plate edge of the L-shaped connecting plate.

[0008] Furthermore, when the steel pipe is a round steel pipe, a first connecting plate is welded and fixed between the horizontal plates of adjacent L-shaped fixing plates; a second connecting plate is welded and fixed between the horizontal plates of adjacent L-shaped connecting plates; a first arc-shaped plate is welded and fixed between the first connecting plate and the second connecting plate; both side edges of the first arc-shaped plate are respectively fixed to adjacent steel tube concrete beams; a second arc-shaped plate is welded and fixed between the vertical plates of adjacent L-shaped connecting plates; the top edge of the second arc-shaped plate is welded and fixed to the second connecting plate; a reinforcing rib plate vertically fixed to the first arc-shaped plate is welded and fixed between the first connecting plate and the second connecting plate; a reinforcing rib plate is fixed between the second connecting plate and the second arc-shaped plate.

[0009] Furthermore, two diagonal columns are arranged between adjacent steel tube concrete beams; one end of the diagonal column is fixed to the reinforcing rib plate arranged on the L-shaped connecting plate; the other end of the diagonal column is fixed to the steel tube concrete beam, and is used to bear gravity in the vertical direction and to support the shear wall in the horizontal direction to improve the wind resistance and earthquake resistance. The two diagonal columns are arranged in a "V" shape or an "X" shape.

[0010] Furthermore, reinforcing columns are fixedly arranged between the adjacent steel tube concrete beams in the vertical direction; the connecting rod and the reinforcing column are connected by connecting bolts; one end of the connecting bolt is fixed with the connecting ring; the connecting ring passes through the wall panel and is sleeved on the connecting rod, and the other end of the connecting bolt passes through the reinforcing column and is screwed with an adjusting nut.

[0011] Furthermore, a card block is integrally formed on one side of the wall panel, and a card slot matching the card block is integrally formed on the other side of the wall panel, and the card blocks and card slots of adjacent wall panels are mutually engaged.

[0012] Furthermore, the wall panels are horizontally stacked between adjacent steel tube concrete beams; a U-shaped clamp is fixed to the outer wall of the steel tube concrete beam, and a U-shaped groove is opened on the horizontal plate of the U-shaped clamp; the parts of the connecting rod located on both sides of the wall panels are respectively inserted into the U-shaped groove, the diameter of the fastening nut and the diameter of the cap head are both larger than the width of the U-shaped groove, and the width of the U-shaped groove is larger than the diameter of the connecting rod.

[0013] Furthermore, the wall panels are vertically arranged and installed between adjacent steel tube concrete beams, fixed steel plates are arranged on both sides of the wall panels, and both sides of the fixed steel plates are fixed on adjacent steel tube concrete beams; the two ends of the connecting rods respectively pass through the fixed steel plates; and lightweight aggregate concrete is filled between the fixed steel plates and the wall panels.

[0014] Another aspect of the present invention also discloses an assembly method of a steel tube concrete prefabricated building, which comprises the following steps: (1) building a frame; (2) pouring lightweight aggregate concrete; (3) installing floor panels; (4) installing wall panels; (5) filling gaps;

[0015] (1) Build the frame: Steel pipes are fixed on the base of the core tube at a certain interval in a vertical and horizontal arrangement. Then the box beam is fixed to the steel pipes through connectors to complete the construction of the frame.

[0016] (2) pouring lightweight aggregate concrete: pouring the mixed lightweight aggregate concrete into the pouring opening of the steel pipe and the pouring opening of the box beam fixed in step (1) respectively; stopping when the liquid level of the lightweight aggregate concrete reaches the top opening of the steel pipe and the air outlet of the box beam; and forming a steel tube concrete column and a steel tube concrete beam after the lightweight aggregate concrete is dried and solidified.

[0017] (3) Installing floor slabs: installing floor slabs on adjacent concrete-filled steel tube beams on the same floor in step (2), and pouring lightweight aggregate concrete on the floor slabs and their joints after the installation is completed;

[0018] (4) Installing wall panels: Use a crane to lift the wall panels between two adjacent steel tube concrete beams in the vertical direction. The adjacent wall panel blocks are snapped into the slots, and then the wall panels are fixed by connecting rods to complete the installation of the wall panels.

[0019] (5) Filling gaps: Use bonding mortar to fill the gaps between wall panels, the gaps between wall panels and steel tube concrete columns, and the gaps between wall panels and steel tube concrete beams.

[0020] Furthermore, two diagonal columns are welded between the two adjacent box beams fixed in step (1); one end of the diagonal column is welded and fixed to the reinforcing rib plate on the L-shaped connecting plate; and the other end of the diagonal column is welded and fixed to the box beam located below.

[0021] Furthermore, in step (4), the wall panels are stacked horizontally, and then the connecting rods are inserted through the U-shaped grooves above the wall panels, the stacked wall panels, and the U-shaped grooves below the wall panels in sequence, and then the fastening nuts are screwed onto the connecting rods and tightened.

[0022] Furthermore, reinforcing columns are welded and fixed between the adjacent box beams in the vertical direction fixed in step (1), and connecting bolts are movably inserted into the reinforcing columns. In step (4), a hole connected to the hole for inserting the connecting rod is drilled on one side of the wall panel to be stacked, and it is stacked to a position opposite to the connecting bolt, and then the connecting ring on the connecting bolt is inserted into the drilled hole. After the stacking is completed, the connecting rod is inserted through the U-shaped groove above the wall panel, the stacked wall panel, the connecting ring and the U-shaped groove below the wall panel in sequence, and then the adjusting nut on the connecting bolt is tightened to strengthen the connection between the wall panel and the steel tube concrete beam and the steel tube concrete column. Finally, the fastening nut is screwed onto the connecting rod and tightened.

[0023] Furthermore, in step (4), the wall panels are arranged vertically, and fixed steel plates are arranged on both sides of the arranged wall panels. The two sides of the fixed steel plates are welded to the steel tube concrete beams. Then, the connecting rods are passed through the fixed steel plates on one side of the wall panels, the arranged wall panels, and the fixed steel plates on the other side of the wall panels in sequence. Then, the fastening nuts are screwed onto the connecting rods and tightened. Then, a formwork is installed between the fixed steel plates and the steel tube concrete columns to form a closed space. Finally, lightweight aggregate concrete is filled into the closed space until the lightweight aggregate concrete is dried and solidified, and then the formwork is removed.

[0024] Advantages of the present invention: 1. The present invention has a simple structure and is easy to implement; the main load-bearing structure adopts a steel tube concrete frame structure, which has a large load-bearing capacity, light weight, and excellent earthquake resistance; 2. The main load-bearing structure of the present invention adopts a steel tube concrete frame structure, which saves 50% of steel compared to conventional steel structure buildings, reduces costs, saves 50% of concrete compared to conventional reinforced concrete buildings, has a lighter structure, and has a good stress state. The steel tube concrete beams and steel tube concrete columns have better bending resistance and compression resistance than reinforced concrete beams and reinforced concrete columns of the same cross-sectional area. Therefore, under a certain bending resistance and compression resistance, the steel tube concrete beams and The cross-sectional area of ​​the steel tube concrete column is smaller than that of the reinforced concrete beam and the reinforced concrete column, which increases the usable area of ​​the house and makes the indoor space regular; 3. The wall panels used in the present invention are lighter in weight, so the bearing capacity of the steel tube concrete beam and the steel tube concrete column is reduced, and then compared with conventional steel structure buildings and reinforced concrete buildings, the cross-sectional area of ​​the steel tube concrete beam and the steel tube concrete column of the present invention can be reduced, saving steel and concrete; 4. The assembly method of the present invention is simple and convenient, and the construction period is significantly shortened compared with traditional reinforced concrete, less construction waste is generated, and dust and noise pollution during the construction process are reduced. Description of the drawings:

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0026] Figure 2 for Figure 1 A partial enlarged view of part A.

[0027] Figure 3 Schematic diagram of the connection structure of circular steel pipe, box girder and connecting parts.

[0028] Figure 4 Schematic diagram of the connection structure of square steel tubes, box beams and connecting parts.

[0029] Figure 5 for Figure 4 Schematic diagram of the cross section of the BB part.

[0030] Figure 6 Schematic diagram of the structure of horizontally stacked wall panels.

[0031] Figure 7 for Figure 6 Schematic cross-section of the CC section.

[0032] Figure 8 Schematic diagram of the structure of vertically arranged wall panels.

[0033] Fig. 9 It is a structural schematic diagram of a U-shaped pallet.

[0034] Steel tube concrete column 1, steel tube 1.1, connecting piece 2, L-shaped fixing plate 2.1, L-shaped connecting plate 2.2, vertical bolt rod 2.3, horizontal bolt rod 2.4, right-angle connecting block 2.5, reinforcing rib plate 2.6, fixing nut 2.7, bolt cap head 2.8, first connecting plate 2.9, second connecting plate 2.10, first curved plate 2.11, second curved plate 2.12, steel tube concrete beam 3, box beam 3.1, wall panel 4, clamping block 4.1, clamping groove 4.2, floor plate 5, connecting rod 6, fastening nut 7, cap head 8, reinforcing column 9, connecting bolt 10, connecting ring 11, adjusting nut 12, U-shaped clamping plate 13, U-shaped groove 13.1, fixing steel plate 14, core tube 15, inclined column 16. Specific implementation method:

[0035] The present invention will be further described in detail below through embodiments in conjunction with the accompanying drawings.

[0036] Example 1: Figure 1-9As shown, a structure of a steel tube concrete assembled building includes a core tube 15, steel tube concrete columns 1, connectors 2, steel tube concrete beams 3, wall panels 4 and floor panels 5; a plurality of steel tube concrete columns 1 are arranged vertically and horizontally around the core tube 15, and the core tube 15 has been disclosed by the application document with application number CN201721673943.6 and titled "A Prefabricated Cross Truss Shear Wall Core Tube"; horizontally arranged steel tube concrete beams 3 are fixedly connected between adjacent steel tube concrete columns 1 through connectors 2; and a plurality of steel tube concrete beams 3 are fixedly connected between the core tube 15 and adjacent steel tube concrete columns 1. A horizontally arranged steel tube concrete beam 3 is connected; a plurality of wall panels 4 are stacked between the adjacent steel tube concrete beams 3 in the vertical direction. The wall panels 4 have been disclosed in the application document with application number CN201811128503.1 and the name of "A high-strength gypsum-based foamed lightweight thermal insulation material and its preparation method". The wall panels 4 used are light in weight, so the bearing capacity of the steel tube concrete beam 3 and the steel tube concrete column 1 is reduced. Therefore, compared with conventional steel structure buildings and reinforced concrete buildings, the cross-sectional area of ​​the steel tube concrete beam 3 and the steel tube concrete column 1 of the present invention can be reduced, saving the amount of steel and concrete. ; At least one connecting rod 6 is provided between the wall panels 4 between adjacent concrete-filled steel tube beams 3 for fixing the wall panels 4 so that multiple wall panels 4 are connected as one. A fastening nut 7 is screwed on one end of the connecting rod 6; A cap head 8 is fixedly provided on the other end of the connecting rod 6; Floor slabs 5 are fixedly laid between the adjacent concrete-filled steel tube beams 3 in the horizontal direction of each floor, and the floor slabs 5 have been disclosed by the application document with application number CN201810258426.5 and titled "A high-strength lightweight thermal insulation floor slab and its preparation method"; The concrete-filled steel tube column 1 includes a steel tube 1.1, which is a square steel tube Or a round steel pipe, a pouring port is opened at the bottom of the steel pipe 1.1; the steel pipe 1.1 is filled with lightweight aggregate concrete, and the steel tube concrete beam 3 includes a box beam 3.1, and a pouring port and an air outlet are respectively opened at both ends of the box beam 3.1; the box beam 3.1 is filled with lightweight aggregate concrete, and the lightweight aggregate concrete has been disclosed in the application document with application number CN201810258399.1 and the name "A Light Aggregate Anti-Bending Concrete"; an anti-corrosion layer is coated on the outer surface of the steel pipe 1.1 and the box beam 3.1 to prevent the steel pipe 1.1 and the box beam 3.1 from rusting and damage, thereby extending their service life.

[0037] The connector 2 includes an L-shaped fixing plate 2.1, an L-shaped connecting plate 2.2, a vertical bolt rod 2.3, a horizontal bolt rod 2.4 and a reinforcing rib plate 2.6; the L-shaped fixing plate 2.1 and the L-shaped connecting plate 2.2 are respectively arranged above and below the steel tube concrete beam 3, and the L-shaped connecting plate 2.2 can correct the steel tube concrete beam 3 to make it perpendicular to the steel tube concrete column 1; the vertical plate surface of the L-shaped fixing plate 2.1 is fixed on the steel tube concrete column 1; the vertical bolt rod 2.3 penetrates the horizontal plate of the L-shaped fixing plate 2.1, the steel tube concrete beam 3 and the horizontal plate of the L-shaped connecting plate 2.2; the horizontal bolt rod 2.4 penetrates the vertical plate of the L-shaped connecting plate 2.2 and the steel tube concrete column 1, The vertical bolt rod 2.3 located in the steel tube concrete beam 3 and the horizontal bolt rod 2.4 located in the steel tube concrete column 1 play a role in reinforcing the lightweight aggregate concrete; the vertical plate of the L-shaped connecting plate 2.2 is attached to the tube wall of the steel tube 1.1; one end of the vertical bolt rod 2.3 is screwed with a fixing nut 2.7, and the other end of the vertical bolt rod 2.3 is fixed with a bolt cap head 2.8; one end of the horizontal bolt rod 2.4 is screwed with a fixing nut 2.7, and the other end of the horizontal bolt rod 2.4 is fixed with a bolt cap head 2.8; at least one reinforcing rib plate 2.6 is provided on the L-shaped connecting plate 2.2, and the two adjacent sides of the reinforcing rib plate 2.6 are respectively fixed to the L-shaped connecting plate 2.2 horizontal plate surface and vertical plate surface; when the steel tube 1.1 is a square steel tube, a right-angle connection block 2.5 is welded and fixed between adjacent steel tube concrete beams 3; the top edge of the right-angle connection block 2.5 is welded and fixed to the horizontal plate edge of the L-shaped fixing plate 2.1, and the bottom edge of the right-angle connection block 2.5 is welded and fixed to the horizontal plate edge of the L-shaped connecting plate 2.2, so that the connecting parts 2 form a whole, and their mechanical properties are improved; when the steel tube 1.1 is a round steel tube, a first connection plate 2.9 is welded and fixed between the horizontal plates of adjacent L-shaped fixing plates 2.1; a second connection plate 2.10 is welded and fixed between the horizontal plates of adjacent L-shaped connecting plates 2.2; on the first connection plate 2.9 A first curved plate 2.11 is welded and fixed between the first curved plate 2.11 and the second connecting plate 2.10; both side edges of the first curved plate 2.11 are respectively fixed on adjacent concrete-filled steel tube beams 3; a second curved plate 2.12 is welded and fixed between the vertical plates of adjacent L-shaped connecting plates 2.2; the top edge of the second curved plate 2.12 is welded and fixed to the second connecting plate 2.10; a reinforcing rib 2.6 vertically fixed to the first curved plate 2.11 is welded and fixed between the first connecting plate 2.9 and the second connecting plate 2.10; a reinforcing rib 2.6 is fixed between the second connecting plate 2.10 and the second curved plate 2.12, so that the connecting parts 2 form a whole and improve their mechanical properties.

[0038] Two inclined columns 16 are arranged between adjacent steel tube concrete beams 3; one end of the inclined column 16 is fixed to the reinforcing rib 2.6 arranged on the L-shaped connecting plate 2.2; the other end of the inclined column 16 is fixed to the steel tube concrete beam 3, and is used to bear gravity in the vertical direction and to support the shear wall in the horizontal direction to improve the wind resistance and earthquake resistance. The two inclined columns 16 are arranged in a "V" shape or an "X" shape.

[0039] A reinforcing column 9 is fixedly installed between the adjacent steel tube concrete beams 3 in the vertical direction; the connecting rod 6 and the reinforcing column 9 are connected by a connecting bolt 10; a connecting ring 11 is fixed to one end of the connecting bolt 10; the connecting ring 11 passes through the wall panel 4 and is sleeved on the connecting rod 6, and the other end of the connecting bolt 10 passes through the reinforcing column 9 and is screwed with an adjusting nut 12.

[0040] A clamping block 4.1 is integrally formed on one side of the wall panel 4, and a clamping slot 4.2 matching with the clamping block 4.1 is integrally formed on the other side of the wall panel 4. The clamping blocks 4.1 and the clamping slots 4.2 of adjacent wall panels 4 are clamped to each other.

[0041] The wall panels 4 are stacked horizontally between adjacent concrete-filled steel tube beams 3; a U-shaped clamping plate 13 is fixed to the outer wall of the concrete-filled steel tube beam 3, and a U-shaped groove 13.1 is opened on the horizontal plate of the U-shaped clamping plate 13; the parts of the connecting rod 6 located on both sides of the wall panel 4 are respectively inserted into the U-shaped groove 13.1, the diameter of the fastening nut 7 and the diameter of the cap head 8 are both larger than the width of the U-shaped groove 13.1, and the width of the U-shaped groove 13.1 is larger than the diameter of the connecting rod 6.

[0042] The wall panels 4 are arranged vertically and installed between adjacent steel tube concrete beams 3. Fixed steel plates 14 are arranged on both sides of the wall panels 4. Both sides of the fixed steel plates 14 are fixed on the adjacent steel tube concrete beams 3. The two ends of the connecting rod 6 pass through the fixed steel plates 14 respectively. Light aggregate concrete is filled between the fixed steel plates 14 and the wall panels 4.

[0043] The present invention has a simple structure and is easy to implement; the main load-bearing structure adopts a steel tube concrete frame structure, which has a large bearing capacity, light weight and excellent seismic resistance; the main load-bearing structure of the present invention adopts a steel tube concrete frame structure, which saves 50% of steel compared with conventional steel structure buildings, reduces costs, saves 50% of concrete compared with conventional reinforced concrete buildings, has a lighter structure, and has a good stress state. The steel tube concrete beam 3 and the steel tube concrete column 1 have better bending resistance and compression resistance than the reinforced concrete beam and reinforced concrete column with the same cross-sectional area. Therefore, when a certain bending resistance and compression resistance are achieved, the cross-sectional area of ​​the steel tube concrete beam 3 and the steel tube concrete column 1 is smaller than the cross-sectional area of ​​the reinforced concrete beam and the reinforced concrete column, which increases the usable area of ​​the house and makes the indoor space regular.

[0044] Embodiment 2: A method for assembling a structure of a steel tube concrete prefabricated building of Embodiment 1, comprising the following steps: (1) building a frame; (2) pouring lightweight aggregate concrete; (3) installing floor panels; (4) installing wall panels; (5) filling gaps;

[0045] (1) Building the frame: Steel pipes 1.1 are fixed on the base around the core tube 15 at a certain interval in a vertical and horizontal arrangement, and then the box beam 3.1 is fixed to the steel pipes 1.1 through the connector 2 to complete the building of the frame.

[0046] (2) pouring lightweight aggregate concrete: pouring the mixed lightweight aggregate concrete into the pouring openings of the steel tube 1.1 and the box beam 3.1 fixed in step (1) respectively; stopping when the liquid level of the lightweight aggregate concrete reaches the top opening of the steel tube 1.1 and the air outlet of the box beam 3.1; and forming the steel tube concrete column 1 and the steel tube concrete beam 3 after the lightweight aggregate concrete is dried and solidified.

[0047] (3) Installing the floor slab: installing the floor slab 5 on the adjacent steel tube concrete beams 3 on the same floor in step (2), and pouring lightweight aggregate concrete on the floor slab 5 and its connection after the installation is completed;

[0048] (4) Installing the wall panels: Use a crane to lift the wall panels 4 between two adjacent steel tube concrete beams 3 in the vertical direction, and engage the adjacent blocks 4.1 of the wall panels 4 in the slots 4.2. Then, fix the wall panels 4 with the connecting rods 6 to complete the installation of the wall panels 4.

[0049] (5) Filling gaps: Use bonding mortar to fill the gaps between the wall panels 4, the gaps between the wall panels 4 and the steel tube concrete columns 1, and the gaps between the wall panels 4 and the steel tube concrete beams 3.

[0050] When a shear wall needs to be erected, two inclined columns 16 are first welded between two adjacent box beams 3.1 fixed in step (1); one end of the inclined column 16 is welded and fixed to the reinforcing rib 2.6 on the L-shaped connecting plate 2.2; the other end of the inclined column 16 is welded and fixed to the box beam 3.1 located below.

[0051] In step (4), the wall panels 4 are stacked horizontally, and then the connecting rod 6 is inserted through the U-shaped groove 13.1 above the wall panel 4, the stacked wall panels 4 and the U-shaped groove 13.1 below the wall panel 4 in sequence, and then the fastening nut 7 is screwed onto the connecting rod 6 and tightened.

[0052] A reinforcing column 9 is welded and fixed between the adjacent box beams 3.1 in the vertical direction fixed in step (1), and a connecting bolt 10 is movably inserted into the reinforcing column 9. In step (4), a hole connected to the hole of the inserted connecting rod 6 is drilled on one side of the wall panel 4 to be stacked, and it is stacked to a position opposite to the connecting bolt 10, and then the connecting ring 11 on the connecting bolt 10 is inserted into the drilled hole. After the stacking is completed, the connecting rod 6 is inserted through the U-shaped groove 13.1 above the wall panel 4, the stacked wall panel 4, the connecting ring 11 and the U-shaped groove 13.1 below the wall panel 4 in sequence, and then the adjusting nut 12 on the connecting bolt 10 is tightened, and finally the fastening nut 7 is screwed onto the connecting rod 6 and tightened.

[0053] In step (4), the wall panels 4 are arranged vertically in sequence, and fixed steel plates 14 are arranged on both sides of the arranged wall panels 4. The two sides of the fixed steel plates 14 are welded to the steel tube concrete beams 3. Then, the connecting rods 6 are passed through the fixed steel plates 14 on one side of the wall panels 4, the arranged wall panels 4, and the fixed steel plates 14 on the other side of the wall panels 4 in sequence. Then, the fastening nuts 7 are screwed onto the connecting rods 6 and tightened. Then, a template is installed between the fixed steel plates 14 and the steel tube concrete columns 1 to form a closed space. Finally, lightweight aggregate concrete is filled into the closed space until the lightweight aggregate concrete is dried and solidified, and then the template is removed.

[0054] The assembly method of the present invention is simple and convenient, and compared with the traditional reinforced concrete construction period, the construction period is significantly shortened, less construction waste is generated, and the dust and noise pollution during the construction process are reduced.

[0055] Experiment 1: Steel tube concrete column: cross-sectional diameter is 400mm, steel tube wall thickness is 6mm; length is 3180mm; reinforced concrete column: cross-sectional diameter is 400mm, length is 3180mm; axial compression test is carried out on the above two structures, and the bearing capacity of the steel tube concrete column is 6938kN; the bearing capacity of the reinforced concrete column is 2607kN; it can be seen that the steel tube concrete column has better bearing capacity than the reinforced concrete column with the same cross-sectional area, and further it can be seen that the steel tube concrete column has better bending resistance and compressive resistance than the reinforced concrete column with the same cross-sectional area.

[0056] The above are preferred embodiments of the present invention. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A structure of a steel tube concrete assembled building, characterized in that: It includes a core tube, steel tube concrete columns, connecting pieces, steel tube concrete beams, wall panels and floor panels; a plurality of the steel tube concrete columns are arranged vertically and horizontally around the core tube; the horizontally arranged steel tube concrete beams are fixedly connected between adjacent steel tube concrete columns through the connecting pieces, and the horizontally arranged steel tube concrete beams are fixedly connected between the core tube and adjacent steel tube concrete columns; a plurality of wall panels are stacked between the steel tube concrete beams adjacent in the vertical direction; at least one connecting rod is penetrated between the wall panels between adjacent steel tube concrete beams, one end of the connecting rod is screwed with a fastening nut; the other end of the connecting rod is fixedly provided with a cap; adjacent steel tube concrete beams in the horizontal direction of each floor are connected to each other. The floor slab is fixedly laid between the steel tube concrete beams; the steel tube concrete column includes a steel tube, which is a square steel tube or a round steel tube, and a pouring port is opened at the bottom of the steel tube; the steel tube is filled with lightweight aggregate concrete, and the steel tube concrete beam includes a box beam, and a pouring port and an air outlet are respectively opened at both ends of the box beam; the box beam is filled with lightweight aggregate concrete; a reinforcing column is fixedly arranged between the steel tube concrete beams adjacent in the vertical direction; the connecting rod and the reinforcing column are connected by connecting bolts; a connecting ring is fixed at one end of the connecting bolt; the connecting ring passes through the wall panel and is sleeved on the connecting rod, and the other end of the connecting bolt passes through the reinforcing column and is screwed with an adjusting nut.

2. The structure of a steel tube concrete assembled building according to claim 1, characterized in that: The connecting member includes an L-shaped fixing plate, an L-shaped connecting plate, a vertical bolt rod, a horizontal bolt rod and a reinforcing rib plate; the L-shaped fixing plate and the L-shaped connecting plate are respectively arranged above and below the steel tube concrete beam; the vertical plate surface of the L-shaped fixing plate is fixed to the steel tube concrete column; the vertical bolt rod passes through the horizontal plate of the L-shaped fixing plate, the steel tube concrete beam and the horizontal plate of the L-shaped connecting plate; the horizontal bolt rod passes through the vertical plate of the L-shaped connecting plate and the steel tube concrete column; one end of the vertical bolt rod is screwed with a fixing nut, and the other end of the vertical bolt rod is fixed with a bolt cap head; one end of the horizontal bolt rod is screwed with a fixing nut, and the other end of the horizontal bolt rod is fixed with a bolt cap head; at least one reinforcing rib plate is arranged on the L-shaped connecting plate, and the two adjacent sides of the reinforcing rib plate are respectively fixed on the horizontal plate surface and the vertical plate surface of the L-shaped connecting plate.

3. The structure of a steel tube concrete assembled building according to claim 2, characterized in that: When the steel tube is a square steel tube, a right-angle connecting block is welded and fixed between adjacent steel tube concrete beams; the top edge of the right-angle connecting block is welded and fixed to the horizontal plate edge of the L-shaped fixing plate, and the bottom edge of the right-angle connecting block is welded and fixed to the horizontal plate edge of the L-shaped connecting plate.

4. The structure of a steel tube concrete assembled building according to claim 2, characterized in that: When the steel pipe is a round steel pipe, a first connecting plate is welded and fixed between the horizontal plates of adjacent L-shaped fixing plates; a second connecting plate is welded and fixed between the horizontal plates of adjacent L-shaped connecting plates; a first arc-shaped plate is welded and fixed between the first connecting plate and the second connecting plate; both side edges of the first arc-shaped plate are respectively fixed to adjacent steel tube concrete beams; a second arc-shaped plate is welded and fixed between the vertical plates of adjacent L-shaped connecting plates; the top edge of the second arc-shaped plate is welded and fixed to the second connecting plate; a reinforcing rib plate vertically fixed to the first arc-shaped plate is welded and fixed between the first connecting plate and the second connecting plate; a reinforcing rib plate is fixed between the second connecting plate and the second arc-shaped plate.

5. A steel tube concrete assembled building structure according to any one of claims 2 to 4, characterized in that: Two inclined columns are arranged between adjacent concrete-filled steel tube beams; one end of the inclined column is fixed to a reinforcing rib plate arranged on the L-shaped connecting plate; the other end of the inclined column is fixed to the concrete-filled steel tube beam, and the two inclined columns are arranged in a "V" shape or an "X" shape.

6. The structure of a steel tube concrete assembled building according to claim 1, characterized in that: A clamping block is integrally formed on one side of the wall panel, and a clamping slot matched with the clamping block is integrally formed on the other side of the wall panel. The clamping blocks and the clamping slots of adjacent wall panels are clamped with each other.

7. The structure of a steel tube concrete assembled building according to claim 6, characterized in that: The wall panels are stacked horizontally between adjacent concrete-filled steel tube beams; a U-shaped clip is fixed to the outer wall of the concrete-filled steel tube beam, and a U-shaped groove is opened on the horizontal plate of the U-shaped clip; the parts of the connecting rod located on both sides of the wall panels are respectively inserted into the U-shaped groove, the diameter of the fastening nut and the diameter of the cap head are both larger than the width of the U-shaped groove, and the width of the U-shaped groove is larger than the diameter of the connecting rod.

8. The structure of a steel tube concrete assembled building according to claim 6, characterized in that: The wall panels are arranged vertically and installed between adjacent steel tube concrete beams. Fixed steel plates are arranged on both sides of the wall panels, and both sides of the fixed steel plates are fixed on adjacent steel tube concrete beams. The two ends of the connecting rods pass through the fixed steel plates respectively. Light aggregate concrete is filled between the fixed steel plates and the wall panels.

9. A method for assembling a structure of a steel tube concrete prefabricated building as claimed in any one of claims 1 to 8, characterized in that: It includes the following steps: (1) Build the frame; (2) Pour lightweight aggregate concrete; (3) Install the floor slab; (4) Install the wall slab; (5) Fill the gap; (1) Build the frame: Steel pipes are fixed on the base of the core tube at a certain interval in a vertical and horizontal arrangement. Then the box beam is fixed to the steel pipes through connectors to complete the construction of the frame. Among them, two inclined columns are welded between two adjacent fixed box beams; one end of the inclined column is welded and fixed to the reinforcing rib plate on the L-shaped connecting plate; the other end of the inclined column is welded and fixed to the box beam below; (2) pouring lightweight aggregate concrete: pouring the mixed lightweight aggregate concrete into the pouring opening of the steel pipe and the pouring opening of the box beam fixed in step (1) respectively; stopping when the liquid level of the lightweight aggregate concrete reaches the top opening of the steel pipe and the air outlet of the box beam; and forming a steel tube concrete column and a steel tube concrete beam after the lightweight aggregate concrete is dried and solidified; (3) Installing the floor slab: installing the floor slab on the adjacent concrete-filled steel tube beams on the same floor in step (2), and pouring lightweight aggregate concrete on the floor slab and its joints after the installation is completed; (4) Installing the wall panels: Use a crane to hoist the wall panels between two adjacent steel tube concrete beams in the vertical direction, and snap the adjacent wall panel blocks into the slots. Then, fix the wall panels with connecting rods to complete the installation of the wall panels. (5) Filling gaps: Use bonding mortar to fill the gaps between wall panels, the gaps between wall panels and steel tube concrete columns, and the gaps between wall panels and steel tube concrete beams.

10. The method for assembling a steel tube concrete assembled building according to claim 9, characterized in that: In step (4), the wall panels are stacked horizontally, and then the connecting rods are inserted through the U-shaped grooves above the wall panels, the stacked wall panels, and the U-shaped grooves below the wall panels in sequence, and then the fastening nuts are screwed onto the connecting rods and tightened.

11. The method for assembling a steel tube concrete assembled building according to claim 10, characterized in that: A reinforcing column is welded and fixed between the adjacent box beams in the vertical direction fixed in step (1), and a connecting bolt is movably inserted into the reinforcing column. In step (4), a hole connected to the hole for inserting the connecting rod is drilled on one side of the wall panel to be stacked, and it is stacked to a position opposite to the connecting bolt, and then the connecting ring on the connecting bolt is inserted into the drilled hole. After the stacking is completed, the connecting rod is inserted through the U-shaped groove above the wall panel, the stacked wall panel, the connecting ring and the U-shaped groove below the wall panel in sequence, and then the adjusting nut on the connecting bolt is tightened, and finally the fastening nut is screwed onto the connecting rod and tightened.

12. The method for assembling a steel tube concrete assembled building according to claim 9, characterized in that: In step (4), the wall panels are arranged vertically, and fixed steel plates are placed on both sides of the arranged wall panels. The two sides of the fixed steel plates are welded to the steel tube concrete beams. Then, the connecting rods are passed through the fixed steel plates on one side of the wall panels, the arranged wall panels, and the fixed steel plates on the other side of the wall panels in sequence. Then, the fastening nuts are screwed onto the connecting rods and tightened. Then, a template is installed between the fixed steel plates and the steel tube concrete columns to form a closed space. Finally, lightweight aggregate concrete is filled into the closed space until the lightweight aggregate concrete is dried and solidified, and then the template is removed.

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