Combined type steel supporting structure

Abstract

The utility model discloses a combined type steel supporting structure which is used for being matched with an enclosing purlin to support a foundation pit and comprises a pile column arranged on one side of the enclosing purlin, a supporting rod is connected to the pile column, a connector is arranged at the outer end of the supporting rod, and the connector comprises a first connecting part and a second connecting part which are rotationally arranged. An adjusting cushion block is arranged between the first connecting part and the second connecting part, the first connecting part is connected with the supporting rod, the second connecting part is connected with waterproof plates, and the adjacent waterproof plates are connected with each other. The supporting structure has the advantages that the waterproof plates are connected to form a reliable waterproof effect, the piles play a reliable supporting role, the waterproof plates and the piles are connected into a unified whole through the supporting rods and the connectors, combined forming of the waterproof plates and the piles is achieved, and the supporting capacity of the supporting structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit support, in particular to a combined steel support structure. Background Art

[0002] In foundation pit operations, the protection of foundation pits is often achieved by using internal steel support. H-shaped steel is often used in internal steel support. H-shaped steel is an economical and efficient profile with a relatively optimized cross-sectional area distribution and a reasonable strength-to-weight ratio. However, H-shaped steel alone can only retain soil but not stop water in foundation pit projects.

[0003] In the Chinese patent literature, a steel sheet pile and H-shaped steel combined support structure with authorization announcement number CN 219840090U, which was authorized and announced on May 10, 2023, includes a steel sheet pile and an H-shaped steel vertically arranged on the outside of the steel sheet pile, and the steel sheet pile includes a first U-shaped steel plate and a second U-shaped steel plate. The cross-sections of the first U-shaped steel plate and the second U-shaped steel plate are both U-shaped groove structures, and the first U-shaped steel plate is provided with a first n-shaped folded edge opposite to the direction of its notch on both vertical sides, and the second U-shaped steel plate is provided with a second n-shaped folded edge opposite to the direction of its notch on both vertical sides. The notches of the first U-shaped steel plate and the second U-shaped steel plate are opposite in direction, and are cross-intersected and connected to each other in sequence through the first n-shaped folded edge and the second n-shaped folded edge. A fastening component is provided between the first n-shaped folded edge and the second n-shaped folded edge, and the fastening component includes a slot component arranged on the first n-shaped folded edge, and a convex component arranged on the second n-shaped folded edge.

[0004] The inadequacy of the existing technology lies in that, although the steel sheet piles have a certain waterproof ability, the steel sheet piles are connected by buckling, and their ability to cope with the positive pressure of the soil is weak, and the overall structural performance of the support structure is poor. Utility Model Content

[0005] In order to overcome the above-mentioned deficiencies in the prior art, the utility model provides a combined steel support structure, which has high overall reliability and is easy to assemble and disassemble.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The combined steel support structure is used to cooperate with the purlin to support the foundation pit, including a pile column arranged on one side of the purlin, a support rod is connected to the pile column, a connecting head is provided at the outer end of the support rod, the connecting head includes a first connecting part and a second connecting part which are rotatably arranged, an adjustment pad is provided between the first connecting part and the second connecting part, the first connecting part is connected to the support rod, the second connecting part is connected to a waterproof board, and adjacent waterproof boards are connected to each other.

[0008] The waterproof boards are connected to form a reliable waterproof effect, the piles and columns play a reliable supporting role, and the waterproof boards and piles and columns are connected into a unified whole through support rods and connectors to achieve combined molding of the two and improve the support capacity of the support structure.

[0009] As a preferred method, the pile column is H-shaped steel, which has an optimized cross-sectional area distribution and a reasonable strength-to-weight ratio. Since the various parts of the H-shaped steel are arranged at right angles, the H-shaped steel has strong bending resistance in all directions, is simple to construct, has low construction costs, and has a light structure.

[0010] Preferably, a connecting short rod is provided between the support rod and the connector, and the connecting short rod is detachably connected to the support rod and the connector to adjust the length of the support rod. The distance between the support rod and the connector can be adjusted by the connecting short rod to achieve a more convenient connection between the waterproof board and the pile column.

[0011] Preferably, the first connection part includes an integrated first connection plate and a first hinge block, the first connection plate is connected to the connection head, the second connection part includes an integrated second connection plate and a second hinge block, the second connection plate is connected to the waterproof plate, and the first hinge block and the second hinge block are hinged. The hinge of the first hinge block and the second hinge block realizes the hinge of the first connection plate and the second connection plate, so that the position of the waterproof plate relative to the pile column can be rotated and adjusted, which facilitates the disassembly and assembly of the waterproof plate and realizes the combined reuse of the support structure.

[0012] Preferably, the first hinge block includes a hinge portion whose side surface is at least semi-cylindrical, and connection planes are symmetrically arranged at both ends of the side surface of the hinge portion. The adjustment pad is detachably connected to the connection plane, and the adjustment pad abuts against the second hinge block after being installed in place on the connection plane. After installation, the adjustment pad can limit the rotation angle of the first hinge block and the second hinge block in a certain direction, so that the waterproof board has a maximum rotation angle in the counterclockwise or clockwise direction relative to the support rod, which facilitates the installation of the waterproof board relative to the support rod. The waterproof board can rotate with the second connecting plate, which is convenient for adjusting the position of the waterproof board to complete the disassembly and assembly of the waterproof board, and is convenient for the waterproof board to adapt to the uneven edge of the foundation pit for setting.

[0013] Preferably, the support rod is connected to the pile column by bolts, so as to achieve a reliable connection between the support rod and the pile column.

[0014] Preferably, the two lateral ends of the waterproof board are provided with connecting rings with the axis vertically arranged, and the connecting rings of adjacent waterproof boards are aligned and connected by bolts, so that the adjacent waterproof boards can be quickly disassembled and assembled, and the waterproof boards can rotate with each other after being connected. However, due to the position restriction of the waterproof board by the support rod, the position of the waterproof board is determined after assembly, and a reliable support effect is achieved.

[0015] The beneficial effects of the above scheme will be described in detail with reference to the accompanying drawings and the following embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a combined steel support structure proposed in one embodiment of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the connection between piles, support rods, connecting short rods and connecting heads in a combined steel support structure proposed in one embodiment of the utility model;

[0018] Figure 3 It is a structural schematic diagram of a connector in a combined steel support structure proposed in one embodiment of the utility model;

[0019] Figure 4 It is a structural schematic diagram of connecting short rods in a combined steel support structure proposed in one embodiment of the utility model.

[0020] In the figure: purlin 1, water stop layer 101, pile column 2, web 3, support rod 4, base 5, first connecting part 6, second connecting part 7, adjustment pad 8, first waterproof board 9, second waterproof board 10, connecting ring 11, latch 12, connecting short rod 13, threaded blind hole 14, first connecting plate 15, first hinge block 16, second connecting plate 17, second hinge block 18, connecting plane 19. DETAILED DESCRIPTION

[0021] like Figures 1 to 4 As shown, a combined steel support structure proposed in one embodiment of the utility model is used to cooperate with a purlin 1 to support a foundation pit, including a pile column 2 arranged on one side of the purlin 1, a support rod 4 is connected to the pile column 2, and a connecting head is provided at the outer end of the support rod 4, the connecting head includes a first connecting part 6 and a second connecting part 7 rotatably arranged, an adjustment pad 8 is provided between the first connecting part 6 and the second connecting part 7, the first connecting part 6 is connected to the support rod 4, the second connecting part 7 is connected to a waterproof board, and adjacent waterproof boards are connected to each other.

[0022] The support structure is used to support the foundation pit, and has the ability to retain soil and waterproof. Among them, the pile column 2 has a high structural strength and provides reliable support. The waterproof board has a poor structural strength, but it can cover a large area, and adjacent waterproof boards are connected to each other, which can play a waterproof role. The support rod 4 cooperates with the two-stage rotating connection connector to conveniently connect the waterproof board and the pile column 2, so that the waterproof board can be rotated to a certain angle relative to the pile column 2 to facilitate the installation in the corner of the foundation pit. The soil pressure on the waterproof board can be transmitted to the pile column 2 through the support rod 4, which improves the reliability of the waterproof board installation, and the overall structural performance of the support structure is relatively high.

[0023] In this embodiment, the pile column 2 is an H-shaped steel. The various parts of the H-shaped steel are arranged at right angles, so the H-shaped steel has strong bending resistance in all directions, simple construction, low construction cost, and light structural weight.

[0024] In this embodiment, connecting rings 11 with vertical axes are provided at both lateral ends of the waterproof board, and the connecting rings 11 of adjacent waterproof boards are aligned and connected by bolts 12. Adjacent waterproof boards can be rotated, and the position of the waterproof board is determined only after the waterproof boards are connected to each other and the waterproof boards are connected to the support rods 4. When dismantling, the bolts 12 can be pulled out first, and then the waterproof board can be rotated to expose the connector or the connection between the support rods 4 and the piles 2, so as to facilitate the disassembly of the supporting structure.

[0025] Since the support rods 4 can support the piles 2, the reliability of the waterproofing board is improved by the support rods 4. As a simple replacement for the above solution, the opposite edges of adjacent waterproofing boards are connected by snap-fit ​​connection.

[0026] In order to facilitate the disassembly and assembly between the support rod 4 and the pile column 2 and ensure the reliability of the connection between the support rod 4 and the pile column 2, the support rod 4 and the pile column 2 are connected by bolts. Further, in another embodiment of the utility model, a connecting short rod 13 is provided between the support rod 4 and the connecting head, and the connecting short rod 13 can be detachably connected to the support rod 4 and the connecting head to adjust the length of the support rod 4. For example, Figure 4 As shown, one end of the connecting short rod 13 is provided with a threaded blind hole 14. In cooperation therewith, the outer end of the support rod 4 is provided with an external thread, which is threadedly matched with the threaded blind hole 14. The connector is connected to the other end of the connecting short rod 13 by bolts, and the end surface of the connecting short rod 13 is provided with a threaded hole that matches the bolt. The adjustment of the screwing depth of the support rod 4 and the connecting short rod 13 can adjust the overall length of the connecting short rod 13 and the support rod 4, as well as the direction of the threaded hole on the end surface of the connecting short rod 13, so as to facilitate the connection between the connector and the connecting short rod 13.

[0027] As another embodiment of the present invention, a combined steel support structure is proposed, the first connection part 6 includes an integrated first connection plate 15 and a first hinge block 16, the first connection plate 15 is connected to the support rod 4, the second connection part 7 includes an integrated second connection plate 17 and a second hinge block 18, the second connection plate 17 is connected to the waterproof plate, and the first hinge block 16 and the second hinge block 18 are hinged. For example, Figure 2 As shown, the second hinge block 18 is provided with two intervals, the first hinge block 16 is provided with one and the first hinge block 16 is located between the two second hinge blocks 18. When the first connecting part 6 and the second connecting part 7 are assembled, the first hinge block 16 is extended between the two second hinge blocks 18 and the hinge axis is set, and the assembly of the connecting head is completed.

[0028] Further, such as Figure 3As shown, the first hinge block 16 includes a hinge portion with a semi-cylindrical side surface, and connecting planes 19 are symmetrically provided at both ends of the side surface of the hinge portion. The adjusting pad 8 is detachably connected to the connecting plane 19 by bolts, and the adjusting pad 8 can abut the second hinge block 18 after being installed in place on the connecting plane 19. The setting of the adjusting pad 8 enables the first hinge block 16 and the second hinge block 18 to stay at a certain angle after rotating a certain angle, which facilitates the installation of the waterproof board in place and improves the stability of the waterproof board after installation.

[0029] like Figure 1 As shown, the cross-sectional shape of the waterproof board is an isosceles trapezoid with an opening at the bottom, and the connecting ring 11 is located on the inner side of the waterproof board trapezoid. Adjacent waterproof boards are respectively arranged in two directions, one with the opening facing the purlin 1 and the other with the opening facing away from the purlin 1. The waterproof board with the opening facing the purlin 1 is defined as the first waterproof board 9, and the waterproof board with the opening facing away from the purlin 1 is defined as the second waterproof board 10. The first waterproof board 9 and the second waterproof board 10 are arranged alternately, and the wall surface corresponding to the upper bottom of the first waterproof board 9 is in contact with the pile 2, and the second waterproof board 10 is connected to the support rod 4 through a connector. The pile 2 and the support rod 4 respectively realize the limiting and support of the two adjacent waterproof boards.

[0030] A water stop layer 101 is provided on one side of the purlin 1 facing the pile 2. Figure 1 Taking the shown scheme as an example, during assembly, the pile column 2 can be partially knocked into the ground or cast to form a vertical fixation, and the support rod 4 is bolted to the web 3 of the H-shaped steel through the base 5 at the end. The support rod 4 is perpendicular to the web 3 of the H-shaped steel, and the connecting short rod 13 is threadedly connected to the support rod 4. By adjusting the screw-in depth, the direction of the threaded hole on the connecting short rod 13 can be adjusted to match the threaded hole on the first connecting plate 15 for bolt fixation. The adjusting pad 8 on the first hinge block 16 in the connector is pre-installed, and the adjusting pad 8 is located on one side of the first hinge block 16. Then the first connecting plate 15 and the connecting short rod 13 are bolted together, and the second connecting plate 17 is rotated to the side where the adjusting pad 8 is not set to provide an operating space for the rotation of the bolts on the second connecting plate 17. After the second connecting plate 17 and the second waterproof plate 10 are connected in place, the second connecting plate 17 is rotated so that the second connecting plate 17 abuts against the adjusting pad 8. At this time, the side surface corresponding to the upper bottom of the second waterproof plate 10 is perpendicular to the web 3 of the H-shaped steel, and then the first waterproof plate 9 is installed. After the axis of the connecting ring 11 of the first waterproof plate 9 and the second waterproof plate 10 is aligned, the pin 12 is inserted to achieve relative fixation of the first waterproof plate 9 and the second waterproof plate 10. Then the pile 2 is knocked in or the soil is filled so that the lower end of the waterproof plate contacts the ground to ensure the waterproof reliability of the waterproof plate.

[0031] During disassembly, first pull out the pin 12 to separate the first waterproof board 9 and the second waterproof board 10, then pull up the pile 2 or overturn the pile 2 to complete the detachment of the second waterproof board 10, the support rod 4, the connecting short rod 13 and the pile 2, thereby realizing the recycling and reuse of the supporting structure.

Claims

1. Combined steel support structure, used to cooperate with the surrounding purlin to support the foundation pit, its characteristics are: It includes a pile column arranged on one side of the purlin, a support rod is connected to the pile column, a connecting head is provided at the outer end of the support rod, the connecting head includes a first connecting part and a second connecting part which are rotatably arranged, an adjustment pad is provided between the first connecting part and the second connecting part, the first connecting part is connected to the support rod, the second connecting part is connected to a waterproof board, and adjacent waterproof boards are connected to each other.

2. The combined steel support structure according to claim 1 is characterized in that: The pile is an H-shaped steel.

3. The combined steel support structure according to claim 1 is characterized in that: A connecting short rod is provided between the support rod and the connecting head, and the connecting short rod is detachably connected to the support rod and the connecting head to adjust the length of the support rod.

4. The combined steel support structure according to claim 1 is characterized in that: The first connection part includes an integrated first connection plate and a first hinge block, the first connection plate is connected to the connection head, the second connection part includes an integrated second connection plate and a second hinge block, the second connection plate is connected to the waterproof plate, and the first hinge block and the second hinge block are hinged.

5. The combined steel support structure according to claim 4 is characterized in that: The first hinge block includes a hinge portion with a side surface that is at least semi-cylindrical, and connection planes are symmetrically provided at both ends of the side surface of the hinge portion. The adjustment pad is detachably connected to the connection plane, and the adjustment pad abuts against the second hinge block after being installed in place on the connection plane.

6. The combined steel support structure according to any one of claims 1 to 5, characterized in that: The support rod is connected to the pile column by bolts.

7. The combined steel support structure according to claim 1 is characterized in that: The two lateral ends of the waterproof board are provided with connecting rings with vertical axes, and the connecting rings of adjacent waterproof boards are aligned and connected by bolts.

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