Assembled space grid box-type cylinder structure and manufacturing method thereof

Abstract

The present invention provides an assembled space grid box-type cylinder structure and a manufacturing method thereof, wherein the structure comprises a grid frame and a hollow sandwich plate floor, wherein the grid frame is provided with more than two layers, and each layer of the grid frame is connected to the hollow sandwich plate floor as a whole to form a single-layer space grid box-type structure, and the single-layer space grid box-type structure is stacked layer by layer to form an assembled space grid box-type single cylinder structure. The present invention arranges the web of the upper chord of the T-shaped steel upward, and forms a group of square steel grid grooves arranged in a matrix and bounded by the web of the upper chord of the T-shaped steel on the upper chord layer, so that the square concrete prefabricated panel can be embedded in the square steel grid groove for installation, thereby reducing the thickness of the floor by 20%.

Description

Technical Field

[0001] The invention relates to an assembled space grid box-type cylinder structure and a manufacturing method thereof, belonging to the technical field of building structures. Background Art

[0002] With the development of my country's economic construction, steel production has increased significantly. It is a general trend for small and high-rise residential buildings to use prefabricated steel structures. The traditional steel frame structure and steel frame and shear structure system have the following shortcomings: First, the structure is restricted by "where there is a wall, there must be a beam". When the net depth (span) of each household is large, steel columns must be installed in each household to prevent the steel frame beams from being too high, so that the rooms in the household cannot be freely divided and the building function is restricted; second, the amount of steel used is relatively large. Compared with reinforced concrete structure, the project cost is relatively high. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention proposes an assembled space grid box-type cylinder structure and a manufacturing method thereof. This structure not only does not require steel columns to be set up indoors, allowing the rooms in the household to be freely divided, but also gives full play to the combined effect and mechanical effect of reinforced concrete and T-steel, thereby improving the strength and rigidity of the entire building structure.

[0004] The technical solution of the present invention is: an assembled space grid box-type cylindrical structure, including a grid frame and a hollow sandwich plate floor, the grid frame is provided with more than two layers, each layer of the grid frame is connected to the hollow sandwich plate floor as a whole to form a single-layer space grid box structure, the single-layer space grid box structure is stacked together layer by layer to form an assembled space grid box-type single-cylinder structure.

[0005] Furthermore, the grid frame includes a group of frame columns arranged along the periphery of the building, and the frame columns between the upper and lower layers are connected as a whole; the hollow sandwich slab floor includes square steel tube shear keys arranged between adjacent frame columns and arranged in a matrix within the enclosure of the group of frame columns, and T-shaped steel upper chords and T-shaped steel lower chords are fixedly connected in parallel between adjacent square steel tube shear keys and between the square steel tube shear keys and the frame columns to form an upper chord layer and a lower chord layer respectively, the web of the T-shaped steel upper chord is arranged upward, and a group of square steel grid grooves arranged in a matrix and bounded by the web of the T-shaped steel upper chord are formed on the upper chord layer, a square concrete precast panel is embedded in each square steel grid groove, and a fine stone concrete thin panel is cast on the square concrete precast panel.

[0006] Furthermore, a window bottom interlayer beam and a window top interlayer beam are fixedly connected in parallel between the upper and lower parts of adjacent frame columns, and the hollow sandwich slab floor is arranged between the window bottom interlayer beam and the window top interlayer beam.

[0007] Furthermore, a steel mesh is arranged in the fine stone concrete thin plate, and the steel mesh is welded and fixed to the web of the upper chord of the T-shaped steel.

[0008] At the same time, the present invention also provides a manufacturing method based on the above-mentioned prefabricated space grid box-type cylinder structure. First, the grid frame of each layer is connected to the hollow sandwich floor slab as a whole to form a single-layer space grid box structure, and then the single-layer space grid box structure is stacked together layer by layer to form an prefabricated space grid box-type single cylinder structure.

[0009] In the above method, when making a single-layer space grid box structure, first a group of frame columns are set along the periphery of the building, and then square steel tube shear keys are arranged between adjacent frame columns. At the same time, a group of square steel tube shear keys are arranged in a matrix within the enclosure range of the group of frame columns, and then the T-shaped steel upper chord and the T-shaped steel lower chord are fixedly connected in parallel between the adjacent square steel tube shear keys and between the square steel tube shear keys and the frame columns, so that a grid-type frame with an upper chord layer and a lower chord layer can be formed, and the web of the T-shaped steel upper chord is set upward, so that a group of square steel grid grooves arranged in a matrix and bounded by the web of the T-shaped steel upper chord can be formed on the upper chord layer, and then a square concrete precast panel is embedded in each square steel grid groove, and finally a fine stone concrete thin panel is poured on the square concrete precast panel to form a hollow sandwich panel floor.

[0010] In the above method, the assembled space grid box-type single-tube structure is arranged on the left and right sides of the core tube and connected thereto as a whole to form a space grid three-tube combined structure.

[0011] In the above method, the assembled space grid box-type single-tube structure is arranged on the rear side and the left and right sides of the core tube, and is connected thereto as a whole to form a space grid four-tube combined structure.

[0012] In the above method, the assembled space grid box-type single-tube structure is arranged on the front and rear sides and the left and right sides of the core tube, and is connected thereto as a whole to form a space grid five-tube combined structure.

[0013] Due to the adoption of the above technical solution, the advantages of the present invention are:

[0014] First, the present invention sets the web of the upper chord of the T-shaped steel upward, and forms a group of square steel grid grooves arranged in a matrix and bounded by the web of the upper chord of the T-shaped steel on the upper chord layer, so that the square concrete prefabricated panels can be embedded in the square steel grid grooves for installation, thereby reducing the floor thickness by 20%;

[0015] Second, the square concrete precast panels and fine stone concrete thin panels in the hollow sandwich floor have a combined effect with the T-shaped steel upper chord to improve the rigidity and strength of the floor. When it is connected to the grid frame as a whole, a single-layer space grid box structure is formed. Then, the single-layer space grid box structure is stacked together layer by layer to form an assembled space grid box single cylinder structure, that is, each layer is composed of a horizontal (floor) grid and a vertical (wall frame) grid to form a single-layer space grid box structure. The single-layer space grid box structure is stacked layer by layer to form a small high-rise (24m<H<50 m) or high-rise (50m≤H≤100m) assembled space grid box-type single-tube structure, and then connecting the assembled space grid box-type single-tube structure with the core tube composed of reinforced concrete shear walls (floor, elevator, fire protection and other public buildings), thus forming a new structural system of small-rise and high-rise large-span residential buildings with excellent technical and economic indicators. This structural system not only does not need to set steel columns indoors, so that the rooms in the household can be freely divided, but also gives full play to the combined effect and mechanical effect of reinforced concrete and T-steel, thereby improving the strength and rigidity of the entire building structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a plan view of the assembled space grid box-type single cylinder structure of the present invention;

[0017] Figure 2 yes Figure 1 Elevation view at mid β;

[0018] Figure 3 It is a structural diagram of a hexagonal floor unit;

[0019] Figure 4 It is a structural diagram of a square floor unit;

[0020] Figure 5 It is a structural schematic diagram of an equilateral triangle floor unit;

[0021] Figure 6 It is a structural schematic diagram of a corner column frame unit;

[0022] Figure 7 It is a structural diagram of the side column frame unit;

[0023] Figure 8 yes Figure 3 Schematic diagram of the elevation structure in the Ω direction;

[0024] Fig. 9 yes Figure 4 Schematic diagram of the elevation structure in the Φ direction;

[0025] Fig.10 yes Figure 3 δ-δ cross-sectional diagram of ;

[0026] Fig.11 yes Fig.10 The enlarged view at θ;

[0027] Fig.12 It is the elevation of the side column frame unit;

[0028] Fig.13 is the elevation of the corner column frame unit;

[0029] Fig.14 It is a plan view of the assembled space grid box-type three-tube structure in the present invention;

[0030] Fig.15 It is a plan view of the assembled space grid box-type four-tube structure in the present invention;

[0031] Fig.16 It is a plan view of the assembled space grid box-type five-cylinder structure in the present invention. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0033] The schematic diagram of the assembled space grid box-type cylinder structure of the present invention is as follows Figure 1 and Figure 2 As shown, it includes a grid frame 1 and a hollow sandwich floor 2, wherein the grid frame 1 is provided with more than two layers, and each layer of the grid frame 1 is connected to the hollow sandwich floor 2 as a whole to form a single-layer space grid box structure, and the single-layer space grid box structure is stacked together layer by layer to form an assembled space grid box single-cylinder structure. The grid frame 1 includes a group of frame columns 3 arranged along the periphery of the building, and the frame columns 3 between the upper and lower layers are connected as a whole; the hollow sandwich slab floor 2 includes square steel tube shear keys 5 arranged between adjacent frame columns 3 and arranged in a matrix within the enclosure of the group of frame columns 3, and T-shaped steel upper chords 6 and T-shaped steel lower chords 7 are fixedly connected in parallel between adjacent square steel tube shear keys 5 and between the square steel tube shear keys 5 and the frame columns 3 to form an upper chord layer and a lower chord layer respectively, the web of the T-shaped steel upper chord 6 is arranged upward, and a group of square steel grid grooves arranged in a matrix and bounded by the web of the T-shaped steel upper chord 6 are formed on the upper chord layer, a square concrete precast panel 10 is embedded in each square steel grid groove, and a fine stone concrete thin plate 11 is cast on the square concrete precast panel 10. The window bottom interlayer beam 8 and the window top interlayer beam 9 are fixedly connected in parallel between the upper and lower parts of the adjacent frame columns 3, and the hollow sandwich floor 2 is arranged between the window bottom interlayer beam 8 and the window top interlayer beam 9. A steel mesh 12 is arranged in the fine stone concrete slab 11, and the steel mesh 12 is welded and fixed to the web of the T-shaped steel upper chord 6.

[0034] Example 1

[0035] This embodiment provides a detailed description of the production of an assembled space grid box-type single cylinder structure.

[0036] When manufacturing an assembled space grid box-type single-tube structure, firstly connect the grid frame 1 of each layer with the hollow sandwich plate floor 2 to form a single-layer space grid box-type structure, and then stack the single-layer space grid box-type structures layer by layer to form an assembled space grid box-type single-tube structure. When making a single-layer space grid box structure, firstly, a group of frame columns 3 are set along the periphery of the building, and then square steel tube shear keys 5 are arranged between adjacent frame columns 3. At the same time, a group of square steel tube shear keys 5 are arranged in a matrix within the enclosure range of the group of frame columns 3, and then T-shaped steel upper chords 6 and T-shaped steel lower chords 7 are fixedly connected in parallel between adjacent square steel tube shear keys 5 and between the square steel tube shear keys 5 and the frame columns 3, so that a grid-type frame 1 with an upper chord layer and a lower chord layer can be formed, and the web of the T-shaped steel upper chord 6 is set upward, so that a group of square steel grid grooves arranged in a matrix and bounded by the web of the T-shaped steel upper chord 6 can be formed on the upper chord layer, and then a square concrete precast panel 10 is embedded in each square steel grid groove, and finally a fine stone concrete thin plate 11 is poured on the square concrete precast panel 10 to form a hollow sandwich plate floor 2.

[0037] In order to make the assembled space grid box-type single-tube structure easy to manufacture in the workshop and assemble on site, the single-layer space grid box-type structure is divided into five units: hexagonal floor unit A, square floor unit B, equilateral triangle floor unit C, side column frame unit D, and corner column frame unit E. The long side (Ly) and short side (Lx) sizes of the assembled space grid box-type single-tube structure are determined by the number of grids of the open-web sandwich floor 2. When the side length a of a single grid is 1.5m, the spacing between adjacent frame columns 3 is S = 2a = 2 × 1.5m = 3m, then the long side Lx = 8 × 1.5m = 12m, the short side Ly = 6a = 6 × 1.5m = 9m, and the floor area is 108m 2 .

[0038] See also Figure 3 The hexagonal floor unit A includes two square steel tube shear keys 5, which are fixedly connected by welding an upper chord 6 of a T-shaped steel and a lower chord 7 of a T-shaped steel. Meanwhile, the upper chord 6 and the lower chord 7 of a T-shaped steel with a length of 1 / 2 are welded on the other three sides of each square steel tube shear key 5.

[0039] See also Figure 4 The square floor unit B includes a square steel tube shear key 5, and a 1 / 2 length T-shaped steel upper chord 6 and a T-shaped steel lower chord 7 are welded on four sides of the square steel tube shear key 5;

[0040] See also Figure 5 The equilateral triangle floor unit C includes a square steel tube shear key 5, and a 1 / 2 length T-shaped steel upper chord 6 and a T-shaped steel lower chord 7 are welded on three sides of the square steel tube shear key 5;

[0041] See also Figure 6 and Fig.12 The side column frame unit D includes a frame column 3, and a 1 / 2 length T-shaped steel upper chord 6, a T-shaped steel lower chord 7, a window bottom interlayer beam 8, and a window top interlayer beam 9 are welded on the three sides of the frame column 3.

[0042] See also Figure 7 and Fig.13 The corner column frame unit E includes a frame column 3, and two adjacent sides of the frame column 3 are welded with a 1 / 2 length T-shaped steel upper chord 6, a T-shaped steel lower chord 7, a window bottom interlayer beam 8 and a window top interlayer beam 9.

[0043] The prepared five units, namely, hexagonal floor unit A, square floor unit B, equilateral triangle floor unit C, side column frame unit D, and corner column frame unit E, are transported to the construction site, the corner column frame unit E is arranged at the four corners of the building, the side column frame unit D is arranged along the periphery of the building, and the equilateral triangle floor unit C is arranged between the corner column frame unit E and the side column frame unit D. Finally, the hexagonal floor unit A and the square floor unit B are arranged within the building, and the ends of the T-steel upper chord 6, the T-steel lower chord 7, the window bottom interlayer beam 8 or the window top interlayer beam 9 of each unit are provided with a splicing point α, and each unit is fixedly connected by welding at the splicing point α, so that the five units, namely, the hexagonal floor unit A, the square floor unit B, the equilateral triangle floor unit C, the side column frame unit D, and the corner column frame unit E, can be connected into one. Since the webs of all the T-steel upper chords 6 are arranged upward, a group of square steel grid grooves arranged in a matrix and bounded by the webs of the T-steel upper chords 6 can be formed on the upper chord layer, and then a square precast concrete slab 10 is embedded in each square steel grid groove, and finally a thin fine stone concrete slab 11 is cast on the square precast concrete slab 10 to form a hollow sandwich slab floor 2. The window bottom interlayer beam 8 or the window top interlayer beam 9 can be used as the bottom beam of the upper window and the top beam of the lower window.

[0044] See also Figures 9-11 Before pouring the fine stone concrete slab 11, the steel mesh 12 in the fine stone concrete slab 11 is welded and fixed to the web of the T-steel upper chord 6, so that the fine stone concrete slab 11 and the T-steel upper chord 6 form a combined effect, which not only improves the rigidity and strength of the assembled space grid box-type single-tube structure, but also reduces the floor thickness by 20%.

[0045] By stacking the above-mentioned single-layer space grid box structures layer by layer, an assembled space grid box single-tube structure can be formed, that is, each layer is a single-layer space grid box structure composed of a horizontal floor grid and a vertical wall frame grid. The single-layer space grid box structures are stacked layer by layer to form an assembled space grid box single-tube structure of a low-rise building of 24m<H<50m or a high-rise building of 50m≤H≤100m.

[0046] Example 2

[0047] See also Fig.14 In this embodiment, the assembled space grid box-type single cylinder structure is arranged on the left and right sides of the core cylinder 3 and connected thereto as a whole to form a space grid three-cylinder combination structure.

[0048] Example 3

[0049] See also Fig.15 In this embodiment, the assembled space grid box-type single-tube structure is arranged on the rear side and the left and right sides of the core tube 3, and is connected thereto as a whole to form a space grid four-tube combined structure.

[0050] Example 4

[0051] See also Fig.16 In this embodiment, the assembled space grid box-type single cylinder structure is arranged on the front and rear sides and the left and right sides of the core cylinder 3, and connected thereto as a whole to form a space grid five-cylinder combination structure.

[0052] It can be seen from Examples 3 to 4 that by connecting the assembled space grid box-type single-tube structure with the core tube composed of reinforced concrete shear walls (public buildings such as buildings, elevators and fire protection), a new structural system of small-rise and high-rise large-span residential buildings with excellent technical and economic indicators is formed. This structural system not only does not require steel columns to be set up indoors, so that the rooms in the household can be freely divided, but also gives full play to the combined effect and mechanical effect of reinforced concrete and T-steel, thereby improving the strength and rigidity of the entire building structure.

Claims

1. An assembled space grid box-type cylindrical structure, comprising a grid frame (1) and a hollow sandwich plate floor (2), characterized in that: The grid frame (1) is provided with more than two layers, and each layer of the grid frame (1) is connected to the open-web sandwich plate floor (2) as a whole to form a single-layer space grid box structure. The single-layer space grid box structure is stacked together layer by layer to form an assembled space grid box single cylinder structure; the single-layer space grid box structure is divided into five units: a hexagonal floor unit A, a square floor unit B, an equilateral triangle floor unit C, a side column frame unit D, and a corner column frame unit E; The hexagonal floor unit A comprises two square steel tube shear keys (5), the two square steel tube shear keys (5) are fixedly connected by welding a T-shaped steel upper chord (6) and a T-shaped steel lower chord (7), and at the same time, a 1 / 2 length of the T-shaped steel upper chord (6) and the T-shaped steel lower chord (7) are welded to the other three sides of each square steel tube shear key (5); The square floor unit B comprises a square steel tube shear key (5), and a 1 / 2 length T-shaped steel upper chord (6) and a T-shaped steel lower chord (7) are welded on four sides of the square steel tube shear key (5); The equilateral triangle floor unit C comprises a square steel tube shear key (5), and a half-length T-shaped steel upper chord (6) and a T-shaped steel lower chord (7) are welded on three sides of the square steel tube shear key (5); The side column frame unit D comprises a frame column (3), and a 1 / 2 length T-shaped steel upper chord (6), a T-shaped steel lower chord (7), a window bottom interlayer beam (8), and a window top interlayer beam (9) are welded on three sides of the frame column (3); The corner column frame unit E comprises a frame column (3), and a half-length T-shaped steel upper chord (6), a T-shaped steel lower chord (7), a window bottom interlayer beam (8), and a window top interlayer beam (9) are welded on two adjacent sides of the frame column (3); the grid frame (1) comprises a group of frame columns (3) arranged along the perimeter of the building, and the frame columns (3) between the upper and lower layers are connected as a whole; the open-web sandwich slab floor (2) comprises square steel tube shear keys (5) arranged between adjacent frame columns (3) and arranged in a matrix within the enclosure of the group of frame columns (3), and parallel fixed between adjacent square steel tube shear keys (5) and between the square steel tube shear keys (5) and the frame columns (3). A T-shaped steel upper chord (6) and a T-shaped steel lower chord (7) are fixedly connected to form an upper chord layer and a lower chord layer respectively; the web of the T-shaped steel upper chord (6) is arranged upward; a group of square steel grid grooves arranged in a matrix and bounded by the web of the T-shaped steel upper chord (6) are formed on the upper chord layer; a square concrete precast plate (10) is embedded in each square steel grid groove; a fine stone concrete thin plate (11) is cast on the square concrete precast plate (10); a window bottom interlayer beam (8) and a window top interlayer beam (9) are fixedly connected in parallel between the upper and lower parts of adjacent frame columns (3); and the hollow sandwich plate floor (2) is arranged between the window bottom interlayer beam (8) and the window top interlayer beam (9).

2. The assembled space grid box-type cylinder structure according to claim 1 is characterized in that: A steel mesh (12) is arranged in the fine stone concrete thin plate (11), and the steel mesh (12) is welded and fixed to the web of the T-shaped steel upper chord (6).

3. A method for manufacturing the assembled space grid box-type cylinder structure according to claim 1 or 2, characterized in that: First, the grid frame (1) of each layer is connected to the open-web sandwich plate floor (2) to form a single-layer space grid box structure, and then the single-layer space grid box structure is stacked together layer by layer to form an assembled space grid box single cylinder structure; when assembling the single-layer space grid box structure, the prepared hexagonal floor unit A, square floor unit B, equilateral triangle floor unit C, side column frame unit D, and corner column frame unit E are transported to the construction site, and the corner column frame unit E is arranged at the At the four corners, the side column frame units D are arranged along the perimeter of the building, and the equilateral triangle floor unit C is arranged between the corner column frame unit E and the side column frame unit D. Finally, the hexagonal floor unit A and the square floor unit B are arranged within the building. The ends of the T-shaped steel upper chord (6), the T-shaped steel lower chord (7), the window bottom interlayer beam (8) or the window top interlayer beam (9) of each unit are provided with a splicing point α. Each unit is welded and fixedly connected through the splicing point α. In this way, the hexagonal floor unit A and the square floor unit B can be connected. The five units of the structure are connected into one body: the unit B, the equilateral triangle floor unit C, the side column frame unit D, and the corner column frame unit E; when making a single-layer space grid box structure, firstly, a group of frame columns (3) are arranged along the perimeter of the building, and then square steel tube shear keys (5) are arranged between adjacent frame columns (3), and at the same time, a group of square steel tube shear keys (5) are arranged in a matrix within the enclosed range of the group of frame columns (3), and then the adjacent square steel tube shear keys (5) and the square steel tube shear keys (5) and the frame columns (3) are fixedly connected in parallel. The upper chord (6) of the T-shaped steel and the lower chord (7) of the T-shaped steel are connected to form a grid-type frame (1) having an upper chord layer and a lower chord layer, and the web of the upper chord (6) of the T-shaped steel is arranged upward, so that a group of square steel grid grooves arranged in a matrix and bounded by the web of the upper chord (6) of the T-shaped steel are formed on the upper chord layer, and then a square precast concrete slab (10) is embedded in each square steel grid groove, and finally a fine stone concrete thin slab (11) is cast on the square precast concrete slab (10) to form a hollow sandwich slab floor (2).

4. The method for manufacturing the assembled space grid box-type cylinder structure according to claim 3 is characterized in that: The assembled space grid box-type single-tube structure is arranged on the left and right sides of the core tube and connected therewith as a whole to form a space grid three-tube combined structure.

5. The method for manufacturing the assembled space grid box-type cylinder structure according to claim 3 is characterized in that: The assembled space grid box-type single-tube structure is arranged on the rear side and the left and right sides of the core tube, and is connected thereto as a whole to form a space grid four-tube combined structure.

6. The method for manufacturing the assembled space grid box-type cylinder structure according to claim 3 is characterized in that: The assembled space grid box-type single cylinder structure is arranged on the front and rear sides and the left and right sides of the core cylinder, and is connected therewith as a whole to form a space grid five-cylinder combination structure.

Images