Steel bracing support structure without support pile and capable of applying pre-tightening force and construction method thereof

Abstract

The application relates to the technical field of steel bracing support, in particular to a steel bracing support structure without support pile and capable of exerting pre-tightening force, which comprises a bracing support, the end of the bracing support is connected with a telescopic rod through insertion, a support plate is arranged at the end of the support plate, a rotating shaft is arranged at the end of the support plate, a limiting column is fixedly arranged at the end of the rotating shaft, a sliding groove is formed in the surface of the support plate, an insertion plate is inserted into the sliding groove, an extension plate is fixedly arranged on the surface of the insertion plate, and a tooth is arranged on the surface of the extension plate; and a first fixing block is arranged at the end of the telescopic rod, beneficial effects are that when pre-tightening force needs to be increased after the first fixing block and a second fixing block are fixed, the rotating shaft is pulled out of the clamping groove, the rotating shaft is rotated, the screw rod is rotated, the moving plate is lowered, the triangular block is inserted into the stress groove, the telescopic rod is moved, the total length of the bracing support and the telescopic rod is increased, and the pre-tightening force is increased.

Description

Technical Field

[0001] This invention relates to the field of steel bracing technology, specifically to a steel bracing structure without bearing piles and capable of being pre-stressed, and its construction method. Background Technology

[0002] Support is a set of measures to support, reinforce and protect the side walls and surrounding environment in order to ensure the safety of underground structure construction and the surrounding environment of the foundation pit.

[0003] The support structure with steel diagonal bracing often places the bottom support below the base plate, which greatly increases the probability of water seepage into the base plate. During construction, the steel diagonal bracing is often not pre-stressed, which increases the deformation of the foundation pit.

[0004] The existing steel diagonal braces that can be prestressed have a support frame at the bottom, and the support frame is fixed. When the steel diagonal brace needs to be prestressed, the support frame is adjusted so that it can no longer provide support. The support frame needs to be removed and re-supported, which is time-consuming and labor-intensive. Summary of the Invention

[0005] The purpose of this invention is to provide a steel inclined bracing support structure without bearing piles and capable of being pre-stressed, and its construction method, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a steel inclined brace support structure with no support pile and capable of applying preload, comprising: an inclined brace, wherein a telescopic rod is inserted into the end of the inclined brace; a support plate, wherein a rotating shaft is provided at the end of the support plate, a limit post is fixed at the end of the rotating shaft, a groove is provided on the surface of the support plate, a connecting plate is inserted into the groove, an extension plate is fixed on the surface of the connecting plate, and teeth are provided on the surface of the extension plate; and a first fixing block is provided at the end of the telescopic rod.

[0007] Preferably, an extension block is fixed to the surface of the diagonal brace, an extension ring is fixed to the surface of the extension block, a slot is opened on the surface of the extension ring, a rotating rod is provided in the slot, a screw is screwed into the extension ring, the bottom of the rotating rod is inserted into the top of the screw, the bottom of the rotating rod has a T-shaped cross section, and a limit strip is provided on the bottom surface of the rotating rod, so that the bottom of the rotating rod can be pulled out from the screw.

[0008] Preferably, the bottom of the screw is provided with a movable plate, the bottom of the screw is inserted into the interior of the movable plate, the bottom surface of the screw is smooth, the bottom cross section of the screw is T-shaped, and a triangular block is fixed to the bottom of the movable plate, and there are multiple sets of triangular blocks.

[0009] Preferably, the surface of the telescopic rod is provided with a force-receiving groove, and there are multiple sets of force-receiving grooves. The bottom of the triangular block is inserted into the force-receiving groove, and one end of the triangular block contacts the inner wall of the force-receiving groove.

[0010] Preferably, the support plate is hinged to the bottom of the diagonal brace via a pivot, the surface of the limiting post is provided with teeth, and the surface of the plug rod is provided with a rubber pad. When the plug rod is inserted into the support plate, the rubber pad plays a stabilizing role.

[0011] Preferably, a limiting rod is fixed to the end of the plug rod, and the end of the limiting rod can be inserted into the teeth on the surface of the limiting post.

[0012] Preferably, the surface of the limiting rod is fixed with a meshing plate, one end of which is provided with teeth, and the teeth at the end of the meshing plate can mesh with the teeth at the end of the extension plate.

[0013] Preferably, one end of the plug-in plate extends out of the end of the support plate, and when the end of the support plate is on the ground, the plug-in plate can be moved and plugged into the ground.

[0014] Preferably, a second fixing block is fixed to the end of the diagonal brace, and the first fixing block and the second fixing block can be fixed to the position that needs to be supported.

[0015] A construction method comprising the following steps:

[0016] Step 1: Increase the preload. After fixing the first and second fixing blocks, when it is necessary to increase the preload, pull up the rotating rod to pull it out of the slot. Rotate the rotating rod to make the screw rotate. The screw makes the moving plate descend, and the triangular block is inserted into the force groove, so that the telescopic rod moves. The total length of the diagonal brace and the telescopic rod increases, thus increasing the preload.

[0017] Step 2: Support. The support plate is hinged to the bottom of the diagonal brace via a pivot. Insert the plug plate into the soil and push the plug rod so that it enters the support plate. The limiting rod is locked onto the surface of the limiting post, and the meshing plate is locked onto the surface of the extension plate, fixing the position of the plug plate and preventing the support plate from swinging, thus providing support. When adjustment is needed, move the plug rod, adjust the angle of the support plate, and then fix it by pressing it against the surface of the extension plate with the meshing plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The present invention proposes that after fixing the first and second fixing blocks, when it is necessary to increase the preload, pull up the rotating rod to pull it out of the slot, rotate the rotating rod to make the screw rotate, and the screw causes the moving plate to descend. The triangular block is inserted into the force groove, causing the telescopic rod to move. The total length of the diagonal brace and the telescopic rod increases, increasing the preload. The support plate is hinged to the bottom of the diagonal brace through a rotating shaft. The insertion plate is inserted into the soil, and the insertion rod is pushed to enter the support plate. The limiting rod is locked on the surface of the limiting post, and the meshing plate is locked on the surface of the extension plate, fixing the position of the insertion plate and preventing the support plate from swinging, thus providing support. When adjustment is needed, the insertion rod is moved, the angle of the support plate is adjusted, and then the meshing plate is used to hold it against the surface of the extension plate for fixation. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the support plate of the present invention;

[0023] Figure 4 This is a cross-sectional three-dimensional structural diagram of the present invention;

[0024] Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0025] Figure 6 for Figure 4 Enlarged schematic diagram of the structure at point B.

[0026] In the diagram: 1. Diagonal brace; 2. Telescopic rod; 3. First fixed block; 4. Extension block; 5. Second fixed block; 6. Support plate; 7. Rotating shaft; 8. Limiting post; 9. Limiting rod; 10. Insertion rod; 11. Slide groove; 12. Insertion plate; 13. Extension plate; 14. Engaging plate; 15. Rotating rod; 16. Slot; 17. Extension ring; 18. Screw; 19. Moving plate; 20. Force groove; 21. Triangular block. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figures 1 to 6 This invention provides a technical solution: a steel diagonal brace support structure for unsupported piles that can be pre-stressed, comprising: a diagonal brace 1, a telescopic rod 2 inserted into the end of the diagonal brace 1, an extension block 4 fixed to the surface of the diagonal brace 1, an extension ring 17 fixed to the surface of the extension block 4, a groove 16 formed on the surface of the extension ring 17, a rotating rod 15 disposed in the groove 16, a screw 18 screwed into the extension ring 17, the bottom of the rotating rod 15 inserted into the top of the screw 18, and the bottom cross-section of the rotating rod 15 being T-shaped. The bottom surface of the rotating rod 15 is provided with a limit strip. The bottom of the rotating rod 15 can be pulled out from the screw 18. The bottom of the screw 18 is provided with a movable plate 19. The bottom of the screw 18 is inserted into the interior of the movable plate 19. The bottom surface of the screw 18 is smooth and the bottom cross section of the screw 18 is T-shaped. The bottom of the movable plate 19 is fixed with a triangular block 21. There are multiple sets of triangular blocks 21. The end of the diagonal brace 1 is fixed with a second fixing block 5. The first fixing block 3 and the second fixing block 5 can be fixed to the position that needs to be supported.

[0029] A support plate 6 has a rotating shaft 7 at one end, and a limiting post 8 is fixed to the end of the rotating shaft 7. A groove 11 is formed on the surface of the support plate 6, and a connecting plate 12 is inserted into the groove 11. An extension plate 13 is fixed to the surface of the connecting plate 12, and teeth are formed on the surface of the extension plate 13. The support plate 6 is hinged to the bottom of the diagonal brace 1 via the rotating shaft 7. The limiting post 8 has teeth on its surface. A rubber pad is provided on the surface of the connecting rod 10. When the connecting rod 10 is inserted into the support plate 6... The rubber pad plays a stabilizing role. The end of the plug rod 10 is fixed with a limit rod 9. The end of the limit rod 9 can be inserted into the teeth on the surface of the limit post 8. The surface of the limit rod 9 is fixed with a meshing plate 14. One end of the meshing plate 14 is provided with teeth. The teeth at the end of the meshing plate 14 can mesh with the teeth at the end of the extension plate 13. One end of the plug plate 12 extends out of the end of the support plate 6. When the end of the support plate 6 is on the ground, the plug plate 12 can be moved and inserted into the ground.

[0030] The first fixing block 3 is located at the end of the telescopic rod 2. The surface of the telescopic rod 2 is provided with a force groove 20. The force groove 20 has multiple sets. The bottom of the triangular block 21 is inserted into the force groove 20, and one end surface of the triangular block 21 contacts the inner wall of the force groove 20.

[0031] After fixing the first fixing block 3 and the second fixing block 5, when it is necessary to increase the preload, pull up the rotating rod 15 so that the rotating rod 15 is pulled out of the slot 16. Rotate the rotating rod 15 so that the screw 18 rotates. The screw 18 causes the moving plate 19 to descend. The triangular block 21 is inserted into the force groove 20 so that the telescopic rod 2 moves. The total length of the diagonal brace 1 and the telescopic rod 2 increases, increasing the preload. The support plate 6 is hinged to the bottom of the diagonal brace 1 through the rotating shaft 7. Insert the plug plate 12 into the soil. Push the plug rod 10 so that the plug rod 10 enters the support plate 6. The limiting rod 9 is locked on the surface of the limiting post 8, and the meshing plate 14 is locked on the surface of the extension plate 13, fixing the position of the plug plate 12. The support plate 6 no longer swings and plays a supporting role. When adjustment is needed, move the plug rod 10, adjust the angle of the support plate 6, and then fix it by pressing it against the surface of the extension plate 13 through the meshing plate 14.

[0032] Although the illustrative specific embodiments of this application have been described above to enable those skilled in the art to understand this application, this application is not limited to the scope of the specific embodiments. For those skilled in the art, all applications utilizing the concept of this application are protected as long as various variations are within the spirit and scope of this application as defined and determined by the appended claims.

Claims

1. A steel inclined bracing support structure with unsupported piles and capable of applying preload, characterized in that: The steel diagonal bracing support structure with unsupported piles and preloadable force includes: Diagonal brace (1), with a telescopic rod (2) inserted at the end of the diagonal brace (1). A support plate (6) is provided with a rotating shaft (7) at its end. A limit post (8) is fixed at the end of the rotating shaft (7). A groove (11) is provided on the surface of the support plate (6). A plug-in plate (12) is inserted into the groove (11). An extension plate (13) is fixed on the surface of the plug-in plate (12). Teeth are provided on the surface of the extension plate (13). The first fixing block (3) is located at the end of the telescopic rod (2); An extension block (4) is fixed to the surface of the diagonal brace (1), and an extension ring (17) is fixed to the surface of the extension block (4). A slot (16) is opened on the surface of the extension ring (17), and a rotating rod (15) is provided in the slot (16). A screw (18) is screwed into the extension ring (17). The bottom of the rotating rod (15) is inserted into the top of the screw (18). The bottom section of the rotating rod (15) is T-shaped, and a limit strip is provided on the bottom surface of the rotating rod (15). The bottom of the rotating rod (15) can be pulled out from the screw (18). The bottom of the screw (18) is provided with a movable plate (19), the bottom of the screw (18) is inserted into the interior of the movable plate (19), and the bottom surface of the screw (18) is smooth. The bottom cross section of the screw (18) is T-shaped. The bottom of the movable plate (19) is fixed with a triangular block (21), and the triangular block (21) has multiple sets. The surface of the telescopic rod (2) is provided with a force groove (20), and there are multiple sets of force grooves (20). The bottom of the triangular block (21) is inserted into the force groove (20), and one end of the triangular block (21) contacts the inner wall of the force groove (20).

2. The steel diagonal bracing support structure for unsupported piles with pre-tensionable force according to claim 1, characterized in that: The support plate (6) is hinged to the bottom of the diagonal brace (1) via a pivot (7). The surface of the limiting post (8) is provided with teeth. The surface of the plug rod (10) is provided with a rubber pad. When the plug rod (10) is inserted into the support plate (6), the rubber pad plays a stabilizing role.

3. The steel diagonal bracing support structure for unsupported piles with preloadable force according to claim 2, characterized in that: The end of the plug rod (10) is fixed with a limiting rod (9), and the end of the limiting rod (9) can be inserted into the teeth on the surface of the limiting post (8).

4. The steel diagonal bracing support structure for unsupported piles with preloadable force as described in claim 3, characterized in that: The surface of the limiting rod (9) is fixed with a meshing plate (14), one end of which is provided with teeth, and the teeth at the end of the meshing plate (14) can mesh with the teeth at the end of the extension plate (13).

5. A steel inclined bracing support structure for unsupported piles with pre-tensionable force according to claim 4, characterized in that: One end of the plug plate (12) extends out of the end of the support plate (6). When the end of the support plate (6) is on the ground, the plug plate (12) can be moved and plugged into the ground.

6. A steel diagonal bracing support structure for unsupported piles with pre-tensionable force according to claim 5, characterized in that: The end of the diagonal brace (1) is fixed with a second fixing block (5), and the first fixing block (3) and the second fixing block (5) are fixed at the position where support is needed.

7. A construction method for a steel diagonal bracing support structure as described in claim 6, characterized in that: Includes the following steps: Step 1: Increase the preload. After fixing the first fixing block (3) and the second fixing block (5), when it is necessary to increase the preload, pull up the rotating rod (15) so that the rotating rod (15) is pulled out from the slot (16). Rotate the rotating rod (15) so that the screw (18) rotates. The screw (18) causes the moving plate (19) to descend. The triangular block (21) is inserted into the force groove (20) so that the telescopic rod (2) moves. The total length of the diagonal brace (1) and the telescopic rod (2) increases, thus increasing the preload. Step 2: Support. The support plate (6) is hinged to the bottom of the diagonal brace (1) via the pivot (7). Insert the plug plate (12) into the soil and push the plug rod (10) so that the plug rod (10) enters the support plate (6). The limiting rod (9) is stuck on the surface of the limiting post (8), and the meshing plate (14) is stuck on the surface of the extension plate (13). The position of the plug plate (12) is fixed, and the support plate (6) no longer swings, thus playing a supporting role. When adjustment is needed, move the plug rod (10), adjust the angle of the support plate (6), and then fix it by pressing it against the surface of the extension plate (13) through the meshing plate (14).

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