Stair connecting structure for steel structure foundation pit construction

Abstract

A steel structure foundation pit construction stair connecting structure belongs to the technical field of steel structure foundation pit construction stairs and comprises a construction stair main body and a foundation pit main body, the construction stair main body is arranged in the foundation pit main body and comprises an outer frame body and an inner stair, a steel structure beam is arranged in the foundation pit main body, and the steel structure beam is arranged in the outer frame body. Connecting plates are arranged at the two ends of the side, close to the steel structure beam, of the outer frame correspondingly, a connecting rod is arranged on one side of each connecting plate, a mounting plate is arranged at the end of each connecting rod, a connecting base is arranged on the outer side of the steel structure beam, a first wedging groove is formed in one side of each connecting base, and a second wedging groove is formed in one side of each mounting plate. And a wedging block is connected between the second wedging groove and the first wedging groove, and the mounting plate is fixedly connected with the connecting base. The utility model can solve the problem of weak connection relation between the existing foundation pit and the middle part of the stair, improve the connection stability and ensure the use effect.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure foundation pit construction stairs, in particular to a steel structure foundation pit construction stair connection structure. Background Art

[0002] The foundation pit is an earth pit excavated at the foundation design location according to the base elevation and foundation plane dimensions. Before excavation, the excavation plan should be determined based on geological and hydrological data and the conditions of nearby buildings on site, and waterproofing and drainage work should be done.

[0003] During the construction process, the excavated foundation pit is getting deeper and deeper, so it is necessary to set up temporary construction stairs at the edge of the foundation pit. At present, when some deep foundation pits are constructed, the upper and lower parts of the construction stairs are fixed to the upper and lower parts of the foundation pit, but the connection between the middle part and the foundation pit is weak, and there is a certain room for optimization in reinforcement. Therefore, it is necessary to design a steel structure foundation pit construction staircase connection structure to solve the above problem. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a steel structure foundation pit construction staircase connection structure which can solve the problem of weak connection between the foundation pit and the middle part of the staircase proposed in the above background technology.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A steel structure foundation pit construction stair connection structure comprises a construction stair main body and a foundation pit main body, wherein the construction stair main body is arranged in the foundation pit main body, the construction stair main body comprises an outer frame and an inner stair, a steel structure beam is arranged in the foundation pit main body, connecting plates are respectively arranged at both ends of a side of the outer frame close to the steel structure beam, a connecting rod is arranged on one side of the connecting plate, a mounting plate is arranged on the end of the connecting rod, a connecting seat is arranged on the outer side of the steel structure beam, a first fitting groove is opened on one side of the connecting seat, a second fitting groove is opened on one side of the mounting plate, and a fitting block is connected between the second fitting groove and the first fitting groove, and the mounting plate is fixedly connected to the connecting seat.

[0007] Furthermore, the connecting plate is fixedly connected to the outer frame through the mounting hole and the first connecting bolt.

[0008] Furthermore, there are two groups of connecting rods, which are symmetrically arranged on the upper and lower parts of the connecting plate and are welded to the connecting plate and the mounting plate respectively.

[0009] Furthermore, the connecting seat is fixedly connected to the steel structure beam through the mounting hole and the second connecting bolt.

[0010] Furthermore, the mounting plate is fixedly connected to the connecting seat through the mounting hole and the third connecting bolt, and the third connecting bolt passes through the fitting block.

[0011] Furthermore, the cross-sections of the first fitting groove and the second fitting groove are convex, the cross-section of the fitting block is H-shaped, and the two sides of the fitting block are matched with the first fitting groove and the second fitting groove respectively.

[0012] Furthermore, a notch is formed at one end of the fitting block, and a hook is connected inside the notch.

[0013] Furthermore, an X-shaped reinforcing rib is welded between the connecting plate and the outer frame.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] A connecting plate is provided, which is fixed to the outer frame by a first connecting bolt, a connecting rod is provided on the outer side of the connecting plate, the end of the connecting rod is connected to the mounting plate, a connecting seat is fixed to the outer side of the steel structure beam via a second connecting bolt, and the connecting seat and the mounting plate are fixed by a third connecting bolt. At the same time, the connection between the connecting seat and the mounting plate through the matching groove and the matching block can improve the lateral tensile protection effect, so as to improve the connection stability, thereby enhancing the reinforcement function of the construction stair main body and ensuring its use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view structural schematic diagram of an embodiment of the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the rear view of the right end of one side of the outer frame of the illustrated embodiment;

[0018] Figure 3 for Figure 1 A schematic diagram of the structure of the left end of one side of the outer frame of the illustrated embodiment;

[0019] Figure 4 for Figure 1 A schematic diagram of the top view of the connecting seat of the illustrated embodiment;

[0020] Figure 5 for Figure 1 A schematic diagram of the three-dimensional structure of the connecting seat of the illustrated embodiment;

[0021] Explanation of the reference numerals in the figure: 1. Construction staircase body; 2. Outer frame; 3. Inner staircase; 4. Foundation pit body; 5. Steel structure beam; 6. Reinforcement rib; 7. Connecting plate; 8. Connecting rod; 9. First connecting bolt; 10. Connecting seat; 11. Second connecting bolt; 12. Third connecting bolt; 13. Mounting plate; 14. First fitting groove; 15. Fitting block; 16. Notch; 17. Hook ring; 18. Second fitting groove. DETAILED DESCRIPTION

[0022] The following is a clear and complete description of the technical solution of the utility model in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, but not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Reference Figures 1 to 5 A steel structure foundation pit construction staircase connection structure, comprising a construction staircase body 1 and a foundation pit body 4, wherein the construction staircase body 1 is arranged in the foundation pit body 4, wherein the construction staircase body 1 comprises an outer frame 2 and an inner staircase 3, wherein a steel structure beam 5 is arranged in the foundation pit body 4, wherein the outer frame 2 is provided with connecting plates 7 at both ends of a side close to the steel structure beam 5, wherein the upper and lower parts of one side of the connecting plate 7 are provided with connecting rods 8, wherein the ends of the connecting rods 8 are provided with mounting plates 13, wherein a connecting seat 10 is provided on the outer side of the steel structure beam 5, wherein a first fitting groove 14 is provided on one side of the connecting seat 10, wherein a second fitting groove 18 is provided on one side of the mounting plate 13, and a fitting block 15 is connected between the second fitting groove 18 and the first fitting groove 14, wherein the mounting plate 13 is fixedly connected to the connecting seat 10. When in use, the lateral tensile resistance of the overall structure can be improved by providing the fitting block 15.

[0024] In this embodiment, the connecting plate 7 is fixedly connected to the outer frame 2 via the mounting holes and the first connecting bolts 9 .

[0025] In this embodiment, there are two groups of connecting rods 8, which are symmetrically arranged on the upper and lower parts of the connecting plate 7 and are welded to the connecting plate 7 and the mounting plate 13 respectively.

[0026] In this embodiment, the connection seat 10 is fixedly connected to the steel structure beam 5 through the mounting hole and the second connection bolt 11 .

[0027] In this embodiment, the mounting plate 13 is fixedly connected to the connecting seat 10 through the mounting hole and the third connecting bolt 12 , and the third connecting bolt 12 passes through the fitting block 15 .

[0028] In this embodiment, the cross-sections of the first fitting groove 14 and the second fitting groove 18 are convex, the cross-section of the fitting block 15 is H-shaped, and the two sides of the fitting block 15 match the first fitting groove 14 and the second fitting groove 18 respectively.

[0029] In this embodiment, a notch 16 is formed at one end of the engagement block 15, and a hook 17 is connected to the inside of the notch 16. When in use, the hook 17 can facilitate the removal of the engagement block 15.

[0030] In this embodiment, an X-shaped reinforcing rib 6 is welded between the connecting plate 7 and the outer frame 2. When in use, the connection strength of the connecting plate 7 can be improved by providing the reinforcing rib 6.

[0031] Working principle:

[0032] When in use, the connecting plate 7 is fixed to the outer frame 2 by the first connecting bolt 9, and two groups of connecting rods 8 are arranged on the outer side of the connecting plate 7, and the ends of the connecting rods 8 are connected to the mounting plates 13. When the connection between the steel structure beam 5 and the outer frame 2 is the node between the outer frame 2 and the inner staircase 3, the gap between the two groups of connecting rods 8 can be used for the node between the outer frame 2 and the inner staircase 3 platform, thereby ensuring the adaptability of the overall structure and improving the use effect. A connecting seat 10 is fixed to the outer side of the steel structure beam 5 via the second connecting bolt 11, and the connecting seat 10 and the mounting plate 13 are fixed by the third connecting bolt 12. At the same time, the connection between the connecting seat 10 and the mounting plate 13 with the matching groove and the matching block 15 can improve the lateral tensile protection effect, so as to improve the connection stability, thereby enhancing the reinforcement function of the construction staircase main body 1 and ensuring its use effect.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A steel structure foundation pit construction staircase connection structure, comprising a construction staircase main body and a foundation pit main body, wherein the construction staircase main body is arranged in the foundation pit main body, the construction staircase main body comprises an outer frame and an inner staircase, and a steel structure beam is arranged in the foundation pit main body, characterized in that: The outer frame is provided with connecting plates at both ends of a side close to the steel structure beam, a connecting rod is provided on one side of the connecting plate, and a mounting plate is provided on the end of the connecting rod. A connecting seat is provided on the outer side of the steel structure beam, a first fitting groove is provided on one side of the connecting seat, a second fitting groove is provided on one side of the mounting plate, and a fitting block is connected between the second fitting groove and the first fitting groove, and the mounting plate is fixedly connected to the connecting seat.

2. The steel structure foundation pit construction staircase connection structure according to claim 1 is characterized by: The connecting plate is fixedly connected to the outer frame through the mounting hole and the first connecting bolt.

3. The steel structure foundation pit construction staircase connection structure according to claim 1 or 2, characterized in that: There are two groups of connecting rods, which are symmetrically arranged on the upper part and the lower part of the connecting plate and are welded to the connecting plate and the mounting plate respectively.

4. The steel structure foundation pit construction staircase connection structure according to claim 1 or 2, characterized in that: The connecting seat is fixedly connected to the steel structure beam through the mounting hole and the second connecting bolt.

5. The steel structure foundation pit construction staircase connection structure according to claim 1 or 2, characterized in that: The mounting plate is fixedly connected to the connecting seat through the mounting hole and the third connecting bolt, and the third connecting bolt passes through the fitting block.

6. The steel structure foundation pit construction staircase connection structure according to claim 1 or 2, characterized in that: The cross-sections of the first fitting groove and the second fitting groove are convex, the cross-section of the fitting block is H-shaped, and two sides of the fitting block are matched with the first fitting groove and the second fitting groove respectively.

7. The steel structure foundation pit construction staircase connection structure according to claim 1 or 2, characterized in that: A notch is formed at one end of the fitting block, and a hook is connected inside the notch.

8. The steel structure foundation pit construction staircase connection structure according to claim 1 or 2, characterized in that: An X-shaped reinforcing rib is welded between the connecting plate and the outer frame.

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