Corner connecting structure of assembly type H-shaped steel supporting system

Abstract

The utility model discloses a corner connecting structure of an assembly type H-shaped steel supporting system, and belongs to the technical field of section steel connection. The assembly type section steel enclosing purlin supporting structure comprises an assembly type section steel enclosing purlin and an inclined strut, the assembly type section steel enclosing purlin is connected with the inclined strut through an angle connecting block, one end of the angle connecting block is assembled with the assembly type section steel enclosing purlin through a fixing bolt, and the other end of the angle connecting block is assembled with the inclined strut through a positioning bolt. A bolt assembly type connecting structure is adopted, a reliable supporting system can be formed in a foundation pit support, rapid assembly, local disassembly, maintenance, replacement and the like can be achieved, recycling can be achieved, and the construction efficiency is remarkably improved; the free-angle connecting blocks or the fixed-angle connecting blocks are adopted at the connecting joint positions in the steel supporting system, foundation pit supporting environments of different angles can be matched, multiple times of earth excavation are not needed, the coverage range of the supporting system is enlarged, the supporting strength of the supporting system is improved, the mounting portability of the supporting system is improved, and extremely high practicability and universality are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of section steel connection, and more specifically, to a corner connection structure of an assembled H-section steel support system. Background Technique

[0002] Steel structure connection refers to the mutual connection between steel structure components or parts. Steel structure connectors are necessary components for connecting two steel materials and are used more when building steel structure frameworks. However, due to the relatively complex structure of steel structure frameworks, steel materials often need to form many different angles, so two connectors are required to cooperate to complete. Generally, the connection between steel structures and purlins is mainly vertical fixation. However, in special cases, the connection angle needs to be adjusted. In the prior art, usually, chamfers are cut out at the ports of local steel materials, and then they are spliced and welded for fixation. Although the angle requirements can be met, inevitable material losses will occur, and the cut accessories cannot be reused and can only be scrapped, resulting in higher costs and being unfavorable for long-term development. Content of the Utility Model

[0003] 1. Technical Problems to be Solved by the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a corner connection structure of an assembled H-section steel support system. The whole of the utility model adopts a bolt-assembled connection structure, which can form a reliable support system in foundation pit support, can achieve rapid assembly, and can be partially disassembled, maintained, replaced, etc., significantly increasing the construction efficiency; at the connection node position in the steel support system, the utility model adopts a free-angle connection block or a fixed-angle connection block, which can match different-angle foundation pit support environments, eliminating the need for multiple earthwork excavations, expanding the coverage range and support strength of the support system, improving the portability of its installation, and having extremely high practicability and universality.

[0005] 2. Technical Solution

[0006] To achieve the above object, the technical solution provided by the utility model is as follows:

[0007] A corner connection structure of an assembled H-section steel support system of the utility model includes an assembled section steel purlin and a diagonal brace. The assembled section steel purlin and the diagonal brace are connected through an angle connection block. One end of the angle connection block is assembled with the assembled section steel purlin through a fixing bolt, and the other end of the angle connection block is assembled with the diagonal brace through a positioning bolt.

[0008] Further, the angle connection block is a free-angle connection block, which is composed of an upper end plate, a lower end plate, a rear end plate, a middle web plate, and a stiffening plate. A fixing bolt is installed on the surface of the rear end plate, and the rear end plate is assembled with the fabricated steel sheet pile retaining wall through the fixing bolt. The upper end plate and the lower end plate are respectively arranged at the upper and lower ends of the rear end plate. A middle web plate is arranged between the upper end plate and the lower end plate, and a stiffening plate is also arranged on the surface of the middle web plate.

[0009] Further, one end of the diagonal brace is placed on the surface of the lower end plate, and the upper and lower surfaces of the diagonal brace are respectively assembled with the upper end plate and the lower end plate of the free-angle connection block through positioning bolts.

[0010] Further, a fine aggregate concrete layer is filled between the diagonal brace and the free-angle connection block.

[0011] Further, the angle connection block is a fixed-angle connection block. Fixing bolts are respectively installed on the upper end surface and the lower end surface of the fixed-angle connection block. A positioning plate is arranged at the front end of the fixed-angle connection block. A positioning groove is formed on the surface of the positioning plate, and a positioning bolt is installed in the positioning groove. The diagonal brace is assembled with the positioning plate through the positioning bolt.

[0012] Further, the fixed-angle connection block can be a 45-degree angle connection block or a 30-degree angle connection block.

[0013] Further, fabricated steel supports are arranged at intervals on the surface of the fabricated steel sheet pile retaining wall. Adjacent fabricated steel supports are connected by support tie rods. A trapezoidal connecting plate is arranged at the connection between the fabricated steel support and the support tie rod. The two ends of the trapezoidal connecting plate are respectively bolt-connected to the fabricated steel support and the support tie rod.

[0014] Further, the fabricated steel support is spliced by multiple groups of fabricated H-shaped steels. Adjacent fabricated H-shaped steels are connected by rectangular connecting plates. The two ends of the rectangular connecting plate are respectively bolt-connected to the fabricated H-shaped steels.

[0015] 3. Beneficial effects

[0016] Adopting the technical solution provided by the present utility model, compared with the prior art, the following beneficial effects are achieved:

[0017] (1) The whole of the present utility model adopts a bolt-assembled connection structure, which can form a reliable support system in the foundation pit support, replacing the previous welded assembly system. It can be recycled, can be quickly assembled, and can be partially disassembled, maintained, replaced, etc., significantly increasing the construction efficiency;

[0018] (2) At the connection node position of the steel support system of the present utility model, free-angle connection blocks or fixed-angle connection blocks are adopted, which can match the foundation pit support environments of different angles, eliminating the need for multiple earthwork excavations, expanding the coverage range and support strength of the support system, improving the portability of its installation, and endowing the angle connection blocks with extremely high practicality and universality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Assembly effect diagram of the free-angle connection block of the present utility model;

[0020] Figure 2 Top view of the free-angle connection block of the present utility model;

[0021] Figure 3 Bottom view of the free-angle connection block of the present utility model;

[0022] Figure 4 Plan view of the free-angle connection block of the present utility model;

[0023] Figure 5 Assembly effect diagram of the 45-degree fixed-angle connection block of the present utility model;

[0024] Figure 6 Top view of the 45-degree fixed-angle connection block of the present utility model;

[0025] Figure 7 Plan view of the 45-degree fixed-angle connection block of the present utility model;

[0026] Figure 8 Effect diagram of the surface of the positioning plate of the 45-degree fixed-angle connection block of the present utility model;

[0027] Figure 9 Assembly effect diagram of the 30-degree fixed-angle connection block of the present utility model;

[0028] Figure 10 Top view of the 30-degree fixed-angle connection block of the present utility model;

[0029] Figure 11 Plan view of the 30-degree fixed-angle connection block of the present utility model;

[0030] Figure 12 Effect diagram of the surface of the positioning plate of the 30-degree fixed-angle connection block of the present utility model;

[0031] Figure 13 Top view of the assembled steel section support of the present utility model;

[0032] Figure 14 Front view of the assembled steel section support of the present utility model;

[0033] Figure 15It is the top view of the partial assembly of the trapezoidal connecting plate of the present utility model;

[0034] Figure 16 It is the front view effect diagram of the partial assembly of the trapezoidal connecting plate of the present utility model.

[0035] In the figure: 1. Assembled steel section purlin; 2. Diagonal brace; 3. Angle connecting block; 31. Free angle connecting block; 311. Upper end plate; 312. Lower end plate; 313. Rear end plate; 314. Middle web; 315. Stiffening plate; 32. Fixed angle connecting block; 321. Positioning plate; 322. Positioning groove; 4. Fixed bolt; 5. Positioning bolt; 6. Fine aggregate concrete layer; 7. Assembled steel section support; 71. Assembled H-shaped steel; 72. Rectangular connecting plate; 8. Support tie rod; 9. Trapezoidal connecting plate. Specific embodiments

[0036] The present utility model will be further described below in conjunction with the drawings and embodiments:

[0037] Embodiment 1

[0038] From Figure 1-4 It can be seen that a corner connection structure of an assembled H-shaped steel support system in this embodiment includes an assembled steel section purlin 1 and a diagonal brace 2. The assembled steel section purlin 1 is connected to the diagonal brace 2 through an angle connecting block 3. One end of the angle connecting block 3 is assembled with the assembled steel section purlin 1 through a fixed bolt 4, and the other end of the angle connecting block 3 is assembled with the diagonal brace 2 through a positioning bolt 5.

[0039] The angle connecting block 3 is a free angle connecting block 31. The free angle connecting block 31 is composed of an upper end plate 311, a lower end plate 312, a rear end plate 313, a middle web 314, and a stiffening plate 315. A fixed bolt 4 is installed on the plate surface of the rear end plate 313. The rear end plate 313 is assembled with the assembled steel section purlin 1 through the fixed bolt 4. The upper end plate 311 and the lower end plate 312 are respectively arranged at the upper and lower ends of the rear end plate 313. A middle web 314 is arranged between the upper end plate 311 and the lower end plate 312, and a stiffening plate 315 is also arranged on the plate surface of the middle web 314.

[0040] One end of the diagonal brace 2 is placed on the plate surface of the lower end plate 312, and the upper and lower surfaces of the diagonal brace 2 are respectively assembled with the upper end plate 311 and the lower end plate 312 of the free angle connecting block 31 through positioning bolts 5.

[0041] After the diagonal brace 2 can be quickly placed on the plate surface of the lower end plate 312, the angle can be adjusted, so as to achieve quick assembly;

[0042] Compared with the previous butt welding and butt joint structures, the free-angle connecting block 31 of the present utility model can be adjusted temporarily on-site later specifically, and can match different angular errors between the inclined strut 2 and the assembled steel section purlin 1, having extremely high compatibility;

[0043] A fine aggregate concrete layer 6 is filled between the inclined strut 2 and the free-angle connecting block 31, which can form a relatively fixed structure among the inclined strut 2, the free-angle connecting block 31, and the assembled steel section purlin 1, improving the overall connection strength and the stability of the inclined strut 2.

[0044] Embodiment 2

[0045] From Figure 5-8 It can be seen that a corner connection structure of an assembled H-shaped steel support system in this embodiment includes an assembled steel section purlin 1 and an inclined strut 2. The assembled steel section purlin 1 and the inclined strut 2 are connected by an angle connection block 3. One end of the angle connection block 3 is assembled with the assembled steel section purlin 1 through a fixing bolt 4, and the other end of the angle connection block 3 is assembled with the inclined strut 2 through a positioning bolt 5.

[0046] The angle connection block 3 is a fixed-angle connection block 32. Fixing bolts 4 are respectively installed on the upper end surface and the lower end surface of the fixed-angle connection block 32. A positioning plate 321 is provided at the front end of the fixed-angle connection block 32. A positioning groove 322 is formed on the plate surface of the positioning plate 321, and a positioning bolt 5 is installed in the positioning groove 322. The inclined strut 2 is assembled with the positioning plate 321 through the positioning bolt 5.

[0047] The fixed-angle connection block 32 can be a 45-degree angle connection block.

[0048] As Figure 13-16 shown, assembled steel section supports 7 are arranged at intervals on the surface of the assembled steel section purlin 1. Adjacent assembled steel section supports 7 are connected by support tie rods 8. A trapezoidal connecting plate 9 is provided at the connection between the assembled steel section support 7 and the support tie rod 8. Both ends of the trapezoidal connecting plate 9 are bolted to the assembled steel section support 7 and the support tie rod 8 respectively.

[0049] The assembled steel section support 7 is composed of multiple groups of assembled H-shaped steels 71 spliced together. Adjacent assembled H-shaped steels 71 are connected by rectangular connecting plates 72. Both ends of the rectangular connecting plate 72 are bolted to the assembled H-shaped steels 71 respectively.

[0050] In the 45-degree eight-shaped brace structure assembled by using the present utility model, one end of the inclined strut 2 is connected to the assembled steel section purlin 1 through a free-angle connecting block 31, and the other end of the inclined strut 2 is connected to the assembled steel section support 7 through a 45-degree fixed-angle connection block 32;

[0051] Among them, the upper and lower end faces of the fixed-angle connecting block 32 are respectively fixed to the assembled steel support 7 through fixing bolts 4. The upper and lower surfaces of one end of the inclined strut 2 are respectively assembled to the upper end plate 311 and the lower end plate 312 of the free-angle connecting block 31 through positioning bolts 5. The end face of the other end of the inclined strut 2 is bolted to the positioning plate 321 at the front end of the fixed-angle connecting block 32 through a positioning bolt 5.

[0052] Embodiment 3

[0053] From Figure 9-12 It can be seen that the corner connection structure of an assembled H-shaped steel support system in this embodiment includes an assembled steel section girt 1 and an inclined strut 2. The assembled steel section girt 1 and the inclined strut 2 are connected through an angle connecting block 3. The angle connecting block 3 is a fixed-angle connecting block 32, and the fixed-angle connecting block 32 is a 30-degree angle connecting block.

[0054] As Figure 9 shown, for the 30-degree eight-shaped strut structure assembled by using the present utility model, one end of the inclined strut 2 is connected to the assembled steel section girt 1 through a free-angle connecting block 31, and the other end of the inclined strut 2 is connected to the assembled steel support 7 by using a 30-degree fixed-angle connecting block 32. The upper and lower end faces of the fixed-angle connecting block 32 are respectively fixed to the assembled steel support 7 through fixing bolts 4.

[0055] So far, it can be seen from Embodiments 2-3 that the present utility model can effectively support at local different angles in the foundation pit support system, so as to adapt to different terrain structures, without multiple excavations. The local connection nodes are reasonably fixed through the rectangular connecting plate 72 and the trapezoidal connecting plate 9, effectively improving the support strength and stability of the overall support structure.

[0056] The whole of the present utility model adopts a bolt-assembled connection structure, which can form a reliable support system in the foundation pit support, replacing the previous welded assembly system. It can achieve rapid assembly, local disassembly, maintenance, replacement, etc., significantly increasing the construction efficiency, being recyclable, and reducing the use cost;

[0057] At the same time, at the connection node position in the steel support system of the present utility model, a free-angle connecting block 31 or a fixed-angle connecting block 32 is adopted, which can match the foundation pit support environments at different angles, without multiple earthwork excavations, and expanding the coverage range and support strength of the support system, improving the portability of its installation, making the angle connecting block 3 have extremely high practicability and universality.

[0058] The above has schematically described the present utility model and its embodiments. This description is not restrictive, and what is shown in the drawings is only one of the embodiments of the present utility model. The actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the creation of the present utility model, design without creativity a structural mode and embodiments similar to the technical solution, they shall all fall within the protection scope of the present utility model.

Claims

1. A corner connection structure of an assembled H-shaped steel support system, comprising an assembled steel section purlin (1) and a diagonal brace (2), characterized in that: The prefabricated steel purlin (1) and the diagonal brace (2) are connected by an angle connection block (3). One end of the angle connection block (3) is assembled with the prefabricated steel purlin (1) through a fixing bolt (4), and the other end of the angle connection block (3) is assembled with the diagonal brace (2) through a positioning bolt (5).

2. The corner connection structure of an assembled H-shaped steel support system according to claim 1, characterized in that: The angle connection block (3) is a free-angle connection block (31). The free-angle connection block (31) is composed of an upper end plate (311), a lower end plate (312), a rear end plate (313), a middle web plate (314), and a stiffening plate (315). A fixing bolt (4) is installed on the surface of the rear end plate (313). The rear end plate (313) is assembled with the prefabricated steel purlin (1) through the fixing bolt (4). The upper end plate (311) and the lower end plate (312) are respectively arranged at the upper and lower ends of the rear end plate (313). A middle web plate (314) is arranged between the upper end plate (311) and the lower end plate (312), and a stiffening plate (315) is also arranged on the surface of the middle web plate (314).

3. The corner connection structure of a prefabricated H-shaped steel support system according to claim 2, characterized in that: One end of the diagonal brace (2) is placed on the surface of the lower end plate (312). The upper and lower surfaces of the diagonal brace (2) are respectively assembled with the upper end plate (311) and the lower end plate (312) of the free-angle connection block (31) through positioning bolts (5).

4. The corner connection structure of an assembled H-shaped steel support system according to claim 3, characterized in that: A fine aggregate concrete layer (6) is filled between the diagonal brace (2) and the free-angle connection block (31).

5. The corner connection structure of an assembled H-shaped steel support system according to claim 1, characterized in that: The angle connection block (3) is a fixed-angle connection block (32). Fixing bolts (4) are respectively installed on the upper and lower end surfaces of the fixed-angle connection block (32). A positioning plate (321) is arranged at the front end of the fixed-angle connection block (32). A positioning groove (322) is formed on the surface of the positioning plate (321), and a positioning bolt (5) is installed in the positioning groove (322). The diagonal brace (2) is assembled with the positioning plate (321) through the positioning bolt (5).

6. The corner connection structure of an assembled H-shaped steel support system according to claim 5, characterized in that: The fixed-angle connection block (32) can be a 45-degree angle connection block or a 30-degree angle connection block.

7. The corner connection structure of an assembled H-shaped steel support system according to claim 1, characterized in that: Prefabricated steel supports (7) are arranged at intervals on the surface of the prefabricated steel purlin (1). Adjacent prefabricated steel supports (7) are connected by support tie rods (8). A trapezoidal connection plate (9) is arranged at the connection between the prefabricated steel support (7) and the support tie rod (8). The two ends of the trapezoidal connection plate (9) are respectively bolted to the prefabricated steel support (7) and the support tie rod (8).

8. The corner connection structure of a prefabricated H-shaped steel support system according to claim 7, characterized in that: The prefabricated steel support (7) is composed of multiple groups of prefabricated H-shaped steels (71) spliced together. Adjacent prefabricated H-shaped steels (71) are connected by rectangular connection plates (72). The two ends of the rectangular connection plate (72) are respectively bolted to the prefabricated H-shaped steels (71).

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