A steel lattice column diagonal bracing structure

Abstract

The present application relates to the field of foundation pit support technology, and provides a steel lattice column diagonal bracing structure, which includes a middle section lattice column, two sections of end lattice columns and two sections of connecting lattice columns, the two sections of the end lattice columns are respectively connected to the two ends of the middle section lattice column, and the two sections of the connecting lattice columns are respectively connected to the two ends of the middle section lattice column; the connecting lattice column includes a first connecting section and a second connecting section, the end of the middle section lattice column is inserted into the inner cavity of the first connecting section, and the middle section lattice column is detachably connected to the first connecting section; the end lattice column is inserted into the inner cavity of the second connecting section, and the end lattice column is detachably connected to the second connecting section. The present application has the effect of improving the reuse rate of steel lattice columns and reducing the waste of construction resources.

Description

Technical Field

[0001] The present application relates to the field of foundation pit support technology, and in particular to a steel lattice column diagonal bracing structure. Background Art

[0002] At present, the commonly used foundation pit support is divided into two systems: external pull type and internal support type. Among them, the external pull support system requires the installation of anchor rod (cable) support structure, and the length of the anchor cable exceeds 18m, which may extend into the existing surrounding buildings during construction. Therefore, for foundation pits with complex surrounding environment, poor geological conditions, surrounding buildings that are not suitable for prestressed anchor cables, and deformation-sensitive areas, internal support system is usually used for foundation pit support.

[0003] In the internal support system, the steel lattice column mainly provides oblique support for the foundation pit wall, and at the same time bears and balances the soil pressure from the foundation pit wall during the foundation pit excavation process. The construction process of the steel lattice column oblique support is: construction preparation, trench excavation, grouting and lead hole, pile delivery, embedding of top beam, foundation bottom plate construction, and oblique pile removal.

[0004] like Figure 1 As shown, taking basement support as an example, during the support process of the steel lattice column 100, the two ends of the steel lattice column 100 are respectively embedded in the basement floor and the side wall. After the support is completed, the portion of the steel lattice column 100 located between the first cutting point 200 and the second cutting point 300 is cut off, and the cut steel lattice column portion is transported out of the basement ramp. Since the length of the required steel lattice column and the length of the cut steel lattice column are different in different construction projects, the cut portion of the steel lattice column is generally treated as construction waste, which is difficult to reuse and is relatively wasteful. Utility Model Content

[0005] In order to improve the reuse rate of steel lattice columns and reduce the waste of building resources, the present application provides a steel lattice column diagonal bracing structure.

[0006] The steel lattice column diagonal bracing structure provided in this application adopts the following technical solution:

[0007] A steel lattice column diagonal bracing structure comprises a middle section lattice column, two sections of end lattice columns and two sections of connecting lattice columns, wherein the two sections of the end lattice columns are respectively connected to the two ends of the middle section lattice column, and the two sections of the connecting lattice columns are respectively connected to the two ends of the middle section lattice column; the connecting lattice column comprises a first connecting section and a second connecting section, the end of the middle section lattice column is inserted into the inner cavity of the first connecting section, and the middle section lattice column is detachably connected to the first connecting section; the end lattice column is inserted into the inner cavity of the second connecting section, and the end lattice column is detachably connected to the second connecting section.

[0008] By adopting the above technical solution, when assembling the steel lattice column diagonal bracing structure, the connecting lattice column is first sleeved on the middle lattice column, and then the end of the middle lattice column is abutted against the end of the end lattice column; then the connecting lattice column is moved relative to the middle lattice column, so that the first connecting section corresponds to the end of the middle lattice column, and the first connecting section is connected to the middle lattice column, and the second connecting section corresponds to the end of the end lattice column, and the second connecting section is connected to the end lattice column. After the assembly is completed, the normal construction of the steel lattice column diagonal bracing can be carried out.

[0009] After the support is completed, the diagonal bracing structure is removed. During the removal, the connection between the first connecting section and the middle lattice column is released, and the connection between the second connecting section and the end lattice column is released; the connecting lattice column is moved relative to the middle lattice column or the end lattice column to expose the gap between the middle lattice column and the end lattice column, and the concrete is cut from the gap position to separate the middle lattice column and the end lattice column from each other, and then the removed middle lattice column and the connecting lattice column are transported away and can be reused after cleaning; when reused, the end lattice column of appropriate length is selected according to the construction design and connected to the two ends of the middle connecting column. In this way, the middle lattice column and the connecting lattice column become standard parts in the diagonal bracing structure, which are convenient for production, processing and reuse, and reduce the waste of construction resources.

[0010] Optionally, the connecting lattice columns are coated with a first release agent layer.

[0011] By adopting the above technical solution, the convenience and efficiency of cleaning the concrete attached to the surface of the connecting lattice column are improved.

[0012] Optionally, the middle section lattice column is coated with a second release agent layer.

[0013] By adopting the above technical solution, the convenience and efficiency of cleaning the concrete attached to the surface of the middle lattice column are improved.

[0014] Optionally, the first connecting section and the second connecting section are both provided with a first screw hole, and the first screw hole is threadedly connected with a connecting bolt; the middle section lattice column and the end lattice column are both provided with a second screw hole, the first screw hole and the second screw hole are interconnected and coaxially arranged, and the second screw hole is threadedly matched with the connecting bolt.

[0015] By adopting the above technical solution, the first connecting section and the middle lattice column are detachably connected by utilizing the threaded cooperation between the connecting bolt and the first screw hole and the second screw hole, and the second connecting section and the end lattice column are detachably connected. The structure is simple and easy to operate.

[0016] Optionally, the middle lattice column and the end lattice column are both provided with connecting screw tubes, and the second screw hole is provided in the connecting screw tubes.

[0017] By adopting the above technical solution, when dismantling the lattice column diagonal bracing structure, since the interior of each lattice column is filled with a large amount of concrete, it may be difficult to tighten the connecting bolts. Therefore, by providing a connecting screw tube, a gap is formed between the concrete block and the connecting bolt, which makes it easier to screw out the connecting bolts and improves the dismantling efficiency.

[0018] Optionally, the connecting screw tube is extended in a direction perpendicular to the central axis of the middle section lattice column, and the second screw hole passes through two surfaces of the middle section lattice column that are away from each other.

[0019] By adopting the above technical solution, when installing the connecting bolts, one connecting bolt can be used to complete the connection of the two sides of the connecting lattice column, thereby improving the connection efficiency and strengthening the connection stability between the middle lattice column, the connecting lattice column and the end lattice column.

[0020] Optionally, a handle is provided on the outer wall of the connecting lattice column.

[0021] By adopting the above technical solution, on the one hand, a gripping force point is provided for construction workers, which is convenient for construction workers to move the connected lattice columns when assembling the steel lattice column diagonal bracing structure; on the other hand, when the connected lattice columns are moved relative to the middle lattice columns or the end lattice columns, the connected lattice columns can be quickly detached by knocking on the handle, thereby improving the disassembly efficiency.

[0022] Optionally, a plurality of structural rods are arranged in the inner cavity of the middle section lattice column, two ends of the structural rods are respectively connected to two opposite sides of the middle section lattice column, and the plurality of structural columns are arranged at intervals along the length direction of the middle section lattice column.

[0023] By adopting the above technical solution, the structural strength of the middle section lattice column is strengthened, ensuring the supporting stability of the steel lattice column diagonal bracing structure.

[0024] Optionally, the structural rod is provided with a third screw hole along its length direction, and the end of the third screw hole passes through the side wall of the middle lattice column; the structural rod is threadedly connected with a blocking bolt through the third screw hole, and the side wall of the structural rod is provided with a plurality of through holes, one end of the through hole passes through the outer wall of the structural rod, and the other end is connected to the third screw hole.

[0025] By adopting the above technical solution, when assembling the lattice column diagonal bracing structure, the blocking bolt is screwed into the third screw hole, and the blocking bolt is used to prevent concrete from entering the third screw hole; after dismantling the middle section lattice column, the blocking bolt is first screwed out of the third screw hole, and then a concrete dissolving agent or a concrete softening agent is poured into the third screw hole, and the concrete dissolving agent or the concrete softening agent penetrates into the concrete inside the middle section lattice column through the through hole, dissolving or softening the concrete, so as to improve the cleaning efficiency and convenience of the concrete attached to the middle section lattice column.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. By making the middle section lattice column detachably connected to the first connecting section and the end lattice column detachably connected to the second connecting section, the middle section lattice column and the connecting lattice column can be reused, thereby reducing the waste of building resources;

[0028] 2. By setting a connecting screw tube on the middle section of the lattice column, the second screw hole is located on the connecting screw tube, which improves the convenience of removing the connecting bolt;

[0029] 3. A structural rod is arranged on the middle lattice column, a third screw hole is opened on the structural rod, and a through hole connected to the third screw hole is opened on the side wall of the structural rod. After the middle lattice column is removed, the sealing bolt is unscrewed, and then a concrete dissolving agent or a concrete softening agent is injected into the third screw hole to improve the convenience and efficiency of cleaning the concrete attached to the middle lattice column. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram used to show the existing steel lattice column diagonal bracing structure.

[0031] Figure 2 It is a structural diagram of Example 1 of the present application.

[0032] Figure 3 It is a schematic diagram for showing the structure of the connecting spiral tube in Example 1.

[0033] Figure 4 It is a structural diagram of Example 2 of the present application.

[0034] Explanation of the reference numerals: 100, steel lattice column; 200, first cutting point; 300, second cutting point; 1, middle lattice column; 11, second screw hole; 12, connecting screw tube; 13, structural rod; 131, third screw hole; 132, blocking bolt; 133, through hole; 2, end lattice column; 3, connecting lattice column; 31, first connecting section; 32, second connecting section; 33, first screw hole; 34, connecting bolt; 35, handle. DETAILED DESCRIPTION

[0035] The following is combined with Figure 2-4 This application is described in further detail.

[0036] An embodiment of the present application discloses a steel lattice column diagonal bracing structure.

[0037] Example 1

[0038] Reference Figure 2 and Figure 3A steel lattice column diagonal bracing structure comprises a middle lattice column 1, two end lattice columns 2 and two connecting lattice columns 3, wherein the two end lattice columns 2 are respectively connected to the two ends of the middle lattice column 1, and the two connecting lattice columns 3 are respectively connected to the two ends of the middle lattice column 1.

[0039] The connecting lattice column 3 includes a first connecting section 31 and a second connecting section 32. The end of the middle lattice column 1 is inserted into the inner cavity of the first connecting section 31, and the inner wall of the first connecting section 31 is in contact with the outer wall of the middle lattice column 1. The end of the lattice column 2 at the end of the middle lattice column 1 close to the middle lattice column 1 is inserted into the inner cavity of the second connecting section 32, and the inner wall of the second connecting section 32 is in contact with the outer wall of the middle lattice column 1.

[0040] The middle lattice column 1 is detachably connected to the first connecting section 31 , and the end lattice column 2 is detachably connected to the second connecting section 32 .

[0041] Reference Figure 3 Specifically, the first connection section 31 and the second connection section 32 are both provided with a first screw hole 33, and the first screw hole 33 is threadedly connected with a connecting bolt 34. The end of the middle lattice column 1 for connecting with the first connection section 31 and the end of the end lattice column 2 for connecting with the second connection section 32 are both provided with a second screw hole 11. It can be understood that a plurality of first screw holes 33 are provided, and a plurality of second screw holes 11 are provided, and the first screw hole 33 is coaxially arranged with the second screw hole 11. When assembling the lattice column diagonal bracing structure, the end of the middle lattice column 1 is inserted into the inner cavity of the first connecting section 31, and the end lattice column 2 is inserted into the inner cavity of the second connecting section 32. The position of the connecting lattice column 3 relative to the middle lattice column 1 and the end lattice column 2 is adjusted so that the first screw hole 33 and the second screw hole 11 are connected to each other, and then the connecting bolt 34 is screwed into the first screw hole 33 and the second screw hole 11 to realize the detachable connection between the middle lattice column 1 and the first connecting section 31, and the detachable connection between the end lattice column 2 and the second connecting section 32.

[0042] When dismantling the lattice column bracing structure, first unscrew the connecting bolts 34, then move the connecting lattice column 3 relative to the end lattice column 2 or the middle lattice column 1, and then cut the concrete between the middle lattice column 1 and the end lattice column 2, so that the middle lattice column 1 and the end lattice column 2 are separated from each other. The removed middle lattice column 1 and the connecting lattice column 3 can be used to make a new steel lattice column bracing structure after cleaning, thereby reducing the waste of construction resources.

[0043] Furthermore, in this embodiment, both the middle lattice column 1 and the end lattice column 2 are provided with a connecting screw 12, and the second screw hole 11 is provided in the connecting screw 12. Since a large amount of concrete is filled inside each lattice column when the lattice column bracing structure is removed, it may be difficult to screw the connecting bolt 34. Therefore, by providing the connecting screw 12, a gap is formed between the concrete block and the connecting bolt 34, which facilitates screwing out the connecting bolt 34 and improves the removal efficiency.

[0044] In this embodiment, the connecting screw 12 is extended in a direction perpendicular to the central axis of the middle lattice column 1, and the second screw hole 11 passes through two surfaces of the middle lattice column 1 that are away from each other. At this time, on the opposite sides of the connecting lattice column 3, there should be two first screw holes 33 coaxially corresponding to the second screw hole 11. With this design, when installing the connecting bolt 34, one connecting bolt 34 can be used to complete the connection of the two sides of the connecting lattice column 3, thereby improving the connection efficiency and strengthening the connection stability between the middle lattice column 1, the connecting lattice column 3 and the end lattice column 2.

[0045] Furthermore, a handle 35 is fixed to the outer wall of the connecting lattice column 3 in the dry season. On the one hand, it provides a gripping force point for the construction workers, so that the construction workers can move the connecting lattice column 3 when assembling the steel lattice column diagonal bracing structure; on the other hand, when the connecting lattice column 3 is moved relative to the middle lattice column 1 or the end lattice column 2, the connecting lattice column 3 can be quickly detached by knocking on the handle 35, thereby improving the disassembly efficiency.

[0046] Furthermore, the outer surface of the connecting lattice column 3 is coated with a first release agent layer (not shown in the figure), and the outer surface of the middle lattice column 1 is coated with a second release agent layer (not shown in the figure) to facilitate cleaning of concrete attached to the connecting lattice column 3 and the middle lattice column 1.

[0047] The implementation principle of Example 1 is as follows: when assembling the steel lattice column diagonal bracing structure, firstly, the connecting lattice column 3 is sleeved on the middle lattice column 1, and then the end of the middle lattice column 1 is butted against the end of the end lattice column 2; then, the connecting lattice column 3 is moved relative to the middle lattice column 1, so that the first connecting section 31 corresponds to the end of the middle lattice column 1, and the second connecting section 32 corresponds to the end of the end lattice column 2, so that the first screw hole 33 is coaxial with the second screw hole 11; finally, the connecting bolt 34 is screwed into the first screw hole 33 and the second screw hole 11, and the connection between the middle lattice column 1, the end lattice column 2 and the connecting lattice column 3 is completed. After the assembly is completed, the normal construction process of the steel lattice column diagonal bracing structure is carried out.

[0048] When dismantling the steel lattice column bracing structure, first unscrew the connecting bolts 34, and then knock the handle 35 to move the connecting lattice column 3 relative to the middle lattice column 1 or the end lattice column 2 to expose the abutment position between the middle lattice column 1 and the end lattice column 2, and cut the concrete between the middle lattice column 1 and the end lattice column 2 to separate the middle lattice column 1 from the end lattice column 2.

[0049] Afterwards, the dismantled middle section lattice column 1 and the connecting lattice column 3 are transported out, cleaned and reserved for subsequent reuse. Finally, the exposed portion of the end lattice column 2 is cut off.

[0050] Example 2

[0051] Reference Figure 3 The difference between this embodiment and embodiment 1 is that a plurality of structural rods 13 are arranged in the inner cavity of the middle lattice column 1, and the two ends of the structural rods 13 are respectively welded and fixed to the opposite sides of the middle lattice column 1, and the plurality of structural rods 13 are arranged at intervals along the length direction of the middle lattice column 1 to strengthen the structural strength of the middle lattice column 1 and ensure the supporting stability of the steel lattice column diagonal bracing structure.

[0052] In this embodiment, the structural rod 13 is provided with a third screw hole 131 along its length direction, and the end of the third screw hole 131 passes through the side wall of the middle lattice column 1. The structural rod 13 is threadedly connected with a blocking bolt 132 through the third screw hole 131. The side wall of the structural column is provided with a plurality of through holes 133, and the plurality of through holes 133 are evenly distributed on the structural column. One end of the through hole 133 passes through the outer wall of the structural column, and the other end is connected to the third screw hole 131. When assembling the lattice column bracing structure, the blocking bolt 132 is screwed into the third screw hole 131, and the blocking bolt 132 is used to prevent concrete from entering the third screw hole 131; after removing the middle section lattice column 1, the blocking bolt 132 is first screwed out of the third screw hole 131, and then a concrete dissolving agent or a concrete softening agent is poured into the third screw hole 131, and the concrete dissolving agent or the concrete softening agent penetrates into the concrete inside the middle section lattice column 1 through the through hole 133, dissolving or softening the concrete, so as to improve the cleaning efficiency and convenience of the concrete attached to the middle section lattice column 1.

[0053] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A steel lattice column diagonal bracing structure, characterized in that: The invention comprises a middle lattice column (1), two end lattice columns (2) and two connecting lattice columns (3), wherein the two end lattice columns (2) are respectively connected to the two ends of the middle lattice column (1), and the two connecting lattice columns (3) are respectively connected to the two ends of the middle lattice column (1); the connecting lattice column (3) comprises a first connecting section (31) and a second connecting section (32); the end of the middle lattice column (1) is inserted into the inner cavity of the first connecting section (31), and the middle lattice column (1) and the first connecting section (31) are detachably connected; the end of the end lattice column (2) is inserted into the inner cavity of the second connecting section (32), and the end lattice column (2) and the second connecting section (32) are detachably connected.

2. A steel lattice column diagonal bracing structure according to claim 1, characterized in that: The connecting lattice column (3) is coated with a first release agent layer.

3. The steel lattice column diagonal bracing structure according to claim 1, characterized in that: The middle section lattice column (1) is coated with a second release agent layer.

4. The steel lattice column diagonal bracing structure according to claim 1, characterized in that: The first connecting section (31) and the second connecting section (32) are both provided with a first screw hole (33), and a connecting bolt (34) is threadedly connected to the first screw hole (33); the middle lattice column (1) and the end lattice column (2) are both provided with a second screw hole (11), the first screw hole (33) and the second screw hole (11) are interconnected and coaxially arranged, and the second screw hole (11) and the connecting bolt (34) are threadedly matched.

5. The steel lattice column diagonal bracing structure according to claim 4, characterized in that: The middle lattice column (1) and the end lattice column (2) are both provided with a connecting screw tube (12), and the second screw hole (11) is provided in the connecting screw tube (12).

6. The steel lattice column diagonal bracing structure according to claim 5, characterized in that: The connecting screw tube (12) is arranged to extend in a direction perpendicular to the central axis of the middle section lattice column (1), and the second screw hole (11) penetrates two surfaces of the middle section lattice column (1) which are away from each other.

7. The steel lattice column diagonal bracing structure according to claim 1, characterized in that: The outer wall of the connecting lattice column (3) is provided with a handle (35).

8. The steel lattice column diagonal bracing structure according to claim 1, characterized in that: A plurality of structural rods (13) are arranged in the inner cavity of the middle section lattice column (1), two ends of the structural rods (13) are respectively connected to two opposite sides of the middle section lattice column (1), and the plurality of structural rods are arranged at intervals along the length direction of the middle section lattice column (1).

9. The steel lattice column diagonal bracing structure according to claim 8, characterized in that: The structural rod (13) is provided with a third screw hole (131) along its length direction, and the end of the third screw hole (131) passes through the side wall of the middle lattice column (1); the structural rod (13) is threadedly connected to a blocking bolt (132) through the third screw hole (131), and the side wall of the structural rod (13) is provided with a plurality of through holes (133), one end of the through hole (133) passes through the outer wall of the structural rod (13), and the other end is connected to the third screw hole (131).

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