Steel structure supporting device
By installing oblique anchors in the foundation pit soil layer and connecting them with the support rod, the problems of deformation and unstable position of the existing foundation pit support device are solved, and higher support strength and soil layer stability are achieved.
Patent Information
- Application Number
- CN202420960577.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-07
AI Technical Summary
The existing foundation pit support devices are prone to deformation or unstable when subjected to soil layer pressure, and lack effective soil layer anchoring measures.
Design a steel structure support device, by installing oblique anchor rods in the foundation pit soil layer and connecting them with oblique support rods, the oblique design and extension depth of the anchor rods enhance the anchor effect, and at the same time, the telescopic rods and reinforcement rods are used Improve support strength.
It enhances the support effect, reduces the length of the support rod, is suitable for small foundation pits and narrow sites, improves the overall support strength and inhibits soil layer deformation.
Smart Images
Figure CN222275513U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of building construction, and particularly relates to a steel structure supporting device. Background Art
[0002] The foundation pit support device refers to a series of structural and technical measures taken during the excavation of the foundation pit to protect the safety of surrounding buildings and pedestrians and maintain the stability of the soil around the foundation pit. There are many different existing support technologies. The simplest way is oblique support, that is, through an oblique support rod, one end of the support rod supports the protective steel plate, and the other end is supported on the ground, and the support rod is used to support the protective plate. Since there is no connection between the steel plate and the foundation pit soil layer, the support rod can only passively bear the pressure of the soil outside the foundation pit, which is prone to deformation or position. Utility Model Content
[0003] The utility model aims to provide a steel structure supporting device which is equipped with oblique anchor rods in a foundation pit soil layer and which increases the supporting effect by connecting the anchor rods with oblique supporting rods.
[0004] The utility model is realized by the following measures: a steel structure support device, comprising a protective steel plate and an oblique support rod, characterized in that the upper and lower parts of the protective steel plate are both provided with oblique steel bosses, the oblique steel bosses are provided with mounting holes penetrating the oblique steel bosses and the protective steel plate, and the angle between the axis of the mounting hole and the ground is greater than 10 degrees and less than 45 degrees;
[0005] An anchor rod is concentrically arranged in the installation hole, one end of the anchor rod extends into the soil layer of the foundation pit by 5 meters to 30 meters, and the other end is exposed from the oblique steel boss and the exposed end is provided with an external thread;
[0006] A connecting piece is provided at one end of the oblique support rod, one end of the connecting piece is fixed to the oblique support rod, and the other end is sleeved on the lower anchor rod and fixed by a nut;
[0007] An outer connecting rod perpendicular to the oblique supporting rod is arranged on the outer wall of the oblique supporting rod, a reinforcing rod is arranged between the outer connecting rod and the upper anchor rod, the lower end of the reinforcing rod is sleeved on the outer connecting rod, and the upper end is sleeved on the upper anchor rod. The design of the anchor rod being inclined at 10-45 degrees can increase the soil layer depth of the inner end of the anchor rod and improve the anchoring effect of the anchor rod.
[0008] Furthermore, the external connecting rod is a screw rod, and the reinforcing rod is sleeved on the external connecting rod and the upper anchor rod and fixed by a nut.
[0009] Furthermore, the connecting piece is a U-shaped steel plate.
[0010] Furthermore, the U-shaped steel plate is sleeved on the lower anchor rod and a limiting rod inserted into the oblique steel boss is provided on the inner side of the U-shaped steel plate, and a limiting groove cooperating with the limiting rod is provided on the oblique steel boss.
[0011] Furthermore, nuts are provided on the outer sides of both side plates of the U-shaped steel plate.
[0012] Furthermore, the oblique support rod is a telescopic rod. The telescopic rod generally adopts the form of an inner sleeve rod and an outer sleeve, the lower end of the inner sleeve rod is connected to the upper end of the outer sleeve through threads, the lower end of the outer sleeve is sealed, and the external connecting rod is fixed on the inner sleeve rod.
[0013] Furthermore, a horizontal steel plate attached to the ground is fixedly arranged at the lower end of the oblique support rod, and a reserved hole is arranged on the horizontal steel plate, and the horizontal steel plate can be fixed to the ground through the reserved hole with an expansion bolt.
[0014] Furthermore, the number of the oblique steel bosses and corresponding anchor rods can be designed according to actual conditions and can be 2-10.
[0015] Furthermore, both ends of the reinforcement rod are straight slot holes or U-shaped openings, and a reinforcement rib is arranged in the middle.
[0016] Furthermore, protrusions for facilitating the tightening of nuts are provided at both ends of the reinforcing rod and at the periphery of the straight slot hole or the U-shaped opening.
[0017] The beneficial effects brought about by the technical solution provided by the embodiment of the utility model are as follows: the protective steel plate is supported together by the anchor rods and the oblique support rods arranged in the soil layer of the foundation pit, thereby increasing the supporting effect; the anchor rods are designed to be oblique and extend into the foundation pit to a sufficient depth, so that the deformation of the external soil layer is suppressed by the soil layer deep in the foundation pit; since the oblique support rods are supported below the protective steel plate, the overall length of the oblique support rods is reduced, and the occupied foundation pit space can be minimized when the foundation pit is small and the site is narrow; the upper support of the protective steel plate is achieved by the connecting rod, thereby increasing the overall supporting strength. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solution of the present utility model, a brief introduction will be given to the drawings used in the embodiments below. Obviously, the drawings listed below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;
[0020] Figure 2 yes Figure 1A partial enlarged view of the middle A;
[0021] Figure 3 yes Figure 1 A partial enlarged view of point B in the middle;
[0022] Figure 4 It is a side view of an embodiment of the utility model;
[0023] Figure 5 It is a schematic diagram of the structure of the oblique support rod and its related parts;
[0024] Figure 6 It is a schematic diagram of the structure of the reinforcement rod.
[0025] In the accompanying drawings, the list of components represented by each number is as follows: 1. Protective steel plate; 2. Oblique steel boss; 3. Lower anchor rod; 4. Oblique support rod; 5. U-shaped steel plate; 6. Reinforcement rod; 7. Upper anchor rod; 8. External connecting rod; 401. Inner sleeve rod; 402. Outer sleeve; 403. Horizontal steel plate; 601. Reinforcing rib; 602. U-shaped opening; 603. Protrusion. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. Of course, the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0027] See also Figure 1-Figure 6 A steel structure support device, comprising a protective steel plate 1 and an oblique support rod 4, characterized in that the upper and lower parts of the protective steel plate 1 are both provided with oblique steel bosses 2, the oblique steel bosses 2 are provided with mounting holes penetrating the oblique steel bosses 2 and the protective steel plate 1, and the angle between the axis of the mounting hole and the ground is greater than 10 degrees and less than 45 degrees;
[0028] An anchor rod is concentrically arranged in the mounting hole, one end of the anchor rod extends into the soil layer of the foundation pit by 5 meters to 30 meters, and the other end is exposed to the oblique steel boss 2 and the exposed end is provided with an external thread;
[0029] A connecting piece is provided at one end of the oblique support rod 4, one end of the connecting piece is fixed on the oblique support rod 4, and the other end is sleeved on the lower anchor rod 3 and fixed by a nut;
[0030] An outer connecting rod 8 perpendicular to the oblique supporting rod 4 is arranged on the outer wall of the oblique supporting rod 4, a reinforcing rod 6 is arranged between the outer connecting rod 8 and the upper anchor rod 7, the lower end of the reinforcing rod 6 is sleeved on the outer connecting rod 8, and the upper end is sleeved on the upper anchor rod 7. The design of the anchor rod being inclined at 10 degrees to 45 degrees can increase the soil layer depth of the inner end of the anchor rod and improve the anchoring effect of the anchor rod.
[0031] The external connecting rod 8 is a screw rod, and the reinforcing rod 6 is sleeved on the external connecting rod 8 and the upper anchor rod 7 and fixed by a nut.
[0032] The connecting piece is a U-shaped steel plate 5.
[0033] The U-shaped steel plate 5 is sleeved on the lower anchor rod 3 and a limiting rod inserted into the oblique steel boss 2 is arranged on the inner side of the U-shaped steel plate 5 , and a limiting groove cooperating with the limiting rod is arranged on the oblique steel boss 2 .
[0034] Nuts are arranged on the outer sides of the two side plates of the U-shaped steel plate 5 .
[0035] The oblique support rod 4 is a telescopic rod. The telescopic rod generally adopts the form of an inner sleeve rod 401 and an outer sleeve 402, the lower end of the inner sleeve rod 401 is connected to the upper end of the outer sleeve 402 by threads, and the lower end of the outer sleeve 402 is sealed, and the external rod 8 is fixed on the inner sleeve rod 401.
[0036] A horizontal steel plate 403 attached to the ground is fixedly arranged at the lower end of the oblique support rod 4. A reserved hole is arranged on the horizontal steel plate 403, and the horizontal steel plate 403 can be fixed to the ground through the reserved hole with an expansion bolt.
[0037] The number of the oblique steel bosses 2 and the corresponding anchor rods can be designed according to actual conditions and can be 2-10.
[0038] Both ends of the reinforcing rod 6 are straight slot holes or U-shaped openings 602, and a reinforcing rib 601 is arranged in the middle.
[0039] At both ends of the reinforcing rod 6 and on the periphery of the straight slot hole or the U-shaped opening 602, there are protrusions 603 for facilitating the tightening of the nut.
[0040] Usage: According to the conditions of the construction site, select a protective steel plate 1 of appropriate size, pass the anchor rod through the mounting hole on the inclined steel boss 2, use existing equipment to extend the anchor rod into the soil layer of the foundation pit, and then install the inclined support rod 4, and sleeve the U-shaped steel plate 5 on the lower anchor rod 3. During installation, align the limit rod with the limit groove, and then adjust the position of the outer sleeve 402 so that its bottom is against the ground; then, install the reinforcement rod 6, insert the two ends of the reinforcement rod 6 into the upper anchor rod 7 and the external rod 8 respectively, and then tighten the nuts to fix; finally, weld the horizontal steel plate 403 to the external sleeve and fix it with expansion bolts.
[0041] In addition, when the supporting strength is not large, the horizontal steel plate 403 may not be installed.
[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A steel structure support device, comprising a protective steel plate and an oblique support rod, characterized in that: The upper and lower parts of the protective steel plate are both provided with oblique steel bosses, and the oblique steel bosses are provided with mounting holes that penetrate the oblique steel bosses and the protective steel plate, and the angle between the axis of the mounting hole and the ground is greater than 10 degrees and less than 45 degrees; An anchor rod is concentrically arranged in the installation hole, one end of the anchor rod extends into the soil layer of the foundation pit by 5 meters to 30 meters, and the other end is exposed from the oblique steel boss and the exposed end is provided with an external thread; A connecting piece is provided at one end of the oblique support rod, one end of the connecting piece is fixed to the oblique support rod, and the other end is sleeved on the lower anchor rod and fixed by a nut; An external connecting rod perpendicular to the oblique supporting rod is arranged on the outer wall of the oblique supporting rod, a reinforcing rod is arranged between the external connecting rod and the upper anchor rod, the lower end of the reinforcing rod is sleeved on the external connecting rod, and the upper end is sleeved on the upper anchor rod.
2. The steel structure support device according to claim 1, characterized in that: The external connecting rod is a screw rod, and the reinforcing rod is sleeved on the external connecting rod and the upper anchor rod and fixed by a nut.
3. The steel structure support device according to claim 1, characterized in that: The connecting piece is a U-shaped steel plate.
4. The steel structure support device according to claim 3, characterized in that: The U-shaped steel plate is sleeved on the lower anchor rod, and a limiting rod inserted into the oblique steel boss is arranged on the inner side of the U-shaped steel plate, and a limiting groove matched with the limiting rod is arranged on the oblique steel boss.
5. The steel structure support device according to claim 4, characterized in that: Nuts are arranged on the outer sides of the two side plates of the U-shaped steel plate.
6. The steel structure support device according to claim 1, characterized in that: The oblique supporting rod is a telescopic rod.
7. The steel structure support device according to claim 1, characterized in that: A horizontal steel plate attached to the ground is fixedly arranged at the lower end of the oblique support rod.