Connecting structure for supporting structure and profile steel enclosing purlin and connecting structure for supporting structure and supporting bracket

Abstract

The utility model discloses a connecting structure of a supporting structure, a profile steel enclosing purlin and a supporting bracket, which comprises a back plate pre-buried in the supporting structure, the upper end and the lower end of the back plate are respectively connected with steel bar connecting pieces used for being fixed in the supporting structure, and first high-strength screws are vertically fixed at four corners of the front surface of the back plate. The backrest plate is sequentially connected with the inner force transmission piece, the outer force transmission piece and the profile steel enclosing purlin through bolts. The connecting structure is simple in process, and working procedures of breaking a steel bar protective layer of a supporting structure and welding on site are omitted. Field installation and operation are simple, connection quality is guaranteed, environmental protection and no pollution are achieved, and the recycling rate is high. Standardized design can be achieved, the industrial popularization performance is high, and the integrated installation degree is high.

Description

Technical Field

[0001] The utility model relates to the technical field of steel support construction, and more specifically to a connection structure between a supporting structure and a steel purlin and a supporting corbel. Background Art

[0002] With the development of the times, underground space technology has been developing rapidly, and prefabricated steel supports have become more and more popular. In addition to the increasingly high requirements for building quality, owners have also made requirements on construction period, safety and environmental protection, site appearance, etc. In this environment, how to take into account multiple aspects while ensuring building quality will become a problem worthy of attention and consideration for construction companies.

[0003] At present, the manufacturing and installation process of assembled steel support force transmission parts and corbels is: first, after removing the protective layer of the supporting pile reinforcement, weld the backing plate between the main reinforcement of the supporting pile, and then weld the force transmission parts and supporting corbels. During welding, mechanical and manual coordination is required to adjust the level, elevation, angle, etc. of the parts. The process has the following defects: the protective layer of the supporting pile is too much, which affects the quality of the pile body; the welding of the backing plate and the main reinforcement of the supporting pile will change the mechanical properties of the main reinforcement; there is a certain gap between the backing plate and the pile body of the supporting pile, although grouting is performed later, it cannot be completely eliminated; it is difficult to calibrate the level, elevation, and direction of the force transmission parts and supporting corbels; the length, angle, and root of the force transmission parts and supporting corbels need to be cut on site, the cutting quality cannot be guaranteed, and the process time is long. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a connection structure between a supporting structure and a steel purlin and a supporting corbel.

[0005] The technical solution adopted by the utility model is: a connection structure between a supporting structure and a steel purlin, comprising a backing plate embedded in the supporting structure, the upper end and the lower end of the backing plate are respectively connected to steel bar connectors for fixing in the supporting structure, a first high-strength screw is vertically fixed to the four corners of the front side of the backing plate, and the backing plate is connected to an inner force transmission member, an outer force transmission member and the steel purlin in sequence by bolts.

[0006] Furthermore, the steel bar connector is directly connected to the main bars of the support pile reinforcement cage or the additional stress-bearing steel bars.

[0007] Furthermore, the steel bar connector is a threaded bolt, additional stress-bearing bars are arranged in the steel bar cage of the supporting pile and connected to the mechanical sleeve, and the threaded bolt is mechanically connected to the mechanical sleeve.

[0008] Furthermore, both the inner force transmission member and the outer force transmission member are square frame structures. A horizontal waist-shaped hole is provided on the back plate of the inner force transmission member facing the backrest plate corresponding to the position of the first high-strength screw. The second high-strength screws are vertically fixed at the four corners on the panel of the inner force transmission member away from the backrest plate. Vertical waist-shaped holes are provided on the back plate and the panel of the outer force transmission member corresponding to the connection holes between the second high-strength screw and the steel purlin.

[0009] Furthermore, the upper end and the lower end of the inner force transmission member extend to the outer sides of the upper end and the lower end of the outer force transmission member respectively.

[0010] The utility model also provides a connection structure between a supporting structure and a supporting corbel, comprising a back plate embedded in the supporting structure, the upper end and the lower end of the back plate being respectively connected to steel bar connectors for fixing in the supporting structure, a first high-strength screw rod being vertically fixed to the four front corners of the back plate, and the back plate being connected to the horizontal supporting angle steel and the oblique supporting angle steel of the standard angle steel corbel by bolts.

[0011] Furthermore, a plastic box or a rectangular foam board is placed on the front of the backrest board, and the size of the plastic box or the rectangular foam board is slightly larger than the size of the backrest board.

[0012] Furthermore, an adjustable top plate is arranged above the transverse supporting angle steel, and a third high-strength screw is vertically fixed at the four corners of the bottom surface of the adjustable top plate. The transverse supporting angle steel is provided with connecting holes corresponding to the third high-strength screw. The third high-strength screw is inserted into the connecting holes and threaded nuts are respectively connected above and below the transverse supporting angle steel. A post-installed steel pad is filled between the adjustable top plate and the transverse supporting angle steel.

[0013] Furthermore, the number of rear steel pads is not less than two, and the total length is not less than 1 / 3 of the length of the adjustable top plate.

[0014] Furthermore, a spring sheet is installed on the first high-strength screw.

[0015] The utility model has the following beneficial effects:

[0016] 1. The backing plate steel bar connector can be directly connected to the main reinforcement of the supporting pile steel cage, or mechanically connected to the additional force-bearing reinforcement, without damaging the mechanical properties of the main reinforcement. It can be pre-buried in advance, and there is no gap between the backing plate and the supporting pile body. Plastic boxes or rectangular foam boards can also be buried outside the backing plate to avoid the need to remove the protective layer of the supporting pile steel cage in the later stage.

[0017] 2. The backrest plate is connected to the force transmission part and the supporting corbel with high-strength screws to avoid subsequent welding. The elevation and level of the force transmission part can be fine-tuned, and the elevation, level and angle of the angle steel corbel can be fine-adjusted, which is simple to operate. The backrest plate can be recycled and reused after the support is dismantled, with a high recycling rate. The supporting corbel can be set as a standard part, and the root of the corbel does not need to be cut, so the integrity is guaranteed.

[0018] 3. This connection structure reduces the difficulty of construction and saves costs while ensuring quality, which is in line with the concept of steel-supported prefabricated development. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the connection between the support structure of the utility model and the steel purlin;

[0020] Figure 2 It is a front view of the backrest plate of the utility model;

[0021] Figure 3 It is a side view of the backrest board of the utility model;

[0022] Figure 4 It is a side view of the installation of the backrest plate of the utility model;

[0023] Figure 5 It is a side view of the internal force transmission member of the utility model;

[0024] Figure 6 yes Figure 5 Middle AA section view;

[0025] Figure 7 It is a side view of the external force transmission member of the utility model;

[0026] Figure 8 yes Figure 7 Middle BB / B'-B' section view;

[0027] Fig. 9 It is a schematic diagram of the connection between the support structure and the supporting corbel of the utility model;

[0028] Fig.10 It is a front view of the adjustable top plate of the utility model;

[0029] Fig.11 It is a front view of the standard angle steel bracket of the utility model;

[0030] Fig.12 It is a schematic diagram of the connection between the backrest plate of the utility model and the standard angle steel corbel.

[0031] In the figure: 1. Backing plate; 2. First high-strength screw; 3. Threaded bolt; 4. Internal force transmission member; 5. External force transmission member; 6. Additional force-bearing steel bars; 7. Mechanical sleeve; 8. Steel purlin; 9. Rectangular foam board; 10. Rear steel pad; 11. Adjustable top plate; 12. Standard angle steel bracket; 13. Spring sheet. DETAILED DESCRIPTION

[0032] In order to better understand the purpose, structure and function of the utility model, the connection structure of a supporting structure and a steel purlin and a supporting corbel of the utility model is further described in detail below in conjunction with the accompanying drawings.

[0033] like Figure 1 As shown, a connection structure between a supporting structure and a steel purlin comprises a back plate 1 embedded in the supporting structure, the upper end and the lower end of the back plate 1 are respectively connected to steel bar connectors for fixing in the supporting structure, a first high-strength screw rod 2 is vertically fixed to the four front corners of the back plate 1, and the back plate 1 is connected to an inner force transmission member 4, an outer force transmission member 5 and a steel purlin 8 in sequence by bolts.

[0034] like Figure 2 and Figure 3 As shown, the backrest plate 1 is cut from a 24 mm thick steel plate, and the first high-strength screw rods 2 and threaded bolts 3 fixed by welding at the upper and lower ends and the front are both screw rods with a diameter of 24 mm.

[0035] During the processing of the reinforcement cage of the supporting pile, the pre-installation position of the backing plate 1 is determined according to the position elevation of the medium-shaped steel support force transmission member in the design drawing and the relative position of the supporting pile, and the reinforcement connector is connected to the supporting structure reinforcement or additional stress-bearing reinforcement 6 is added, wherein the additional stress-bearing reinforcement 6 can be welded to the reinforcement ring of the reinforcement cage of the supporting pile or to the main reinforcement of the reinforcement cage. The additional stress-bearing reinforcement 6 can also be connected to the mechanical sleeve 7, and the threaded bolt 3 is mechanically connected to the mechanical sleeve 7.

[0036] like Figure 4 As shown, before the steel cage is placed, a rectangular foam board 9 or a plastic box is placed on the backrest board 1. The size of the rectangular foam board 9 or the plastic box is slightly larger than the size of the backrest board 1. When placed, the orientation position of the backrest board 1 is ensured by correcting the pre-installed position of the backrest board 1.

[0037] Before the force transmission member is installed, the relative position is measured and released on the supporting pile body, and after removing the rectangular foam board 9 or the plastic box, a little cleaning is performed to meet the force transmission member installation requirements. The backing plate can be recycled by cutting the steel bar connector when each layer of steel support is removed.

[0038] like Figure 5~Figure 8 As shown, both the inner force transmission member 4 and the outer force transmission member 5 are square frame structures, cut and welded from 24mm thick steel plates. A horizontal waist-shaped hole is provided on the back plate of the inner force transmission member 4 facing the backrest plate 1, corresponding to the position of the first high-strength screw 2. The second high-strength screw is a screw with a diameter of 24mm, and vertical waist-shaped holes are provided on the back plate and the front plate of the outer force transmission member 5, corresponding to the connection holes of the second high-strength screw and the steel purlin 8.

[0039] The inner force transmission member 4 and the outer force transmission member 5 are pre-placed between the backrest plate 1 and the steel purlin 8. By adjusting the inner force transmission member 4 left and right and the outer force transmission member 5 up and down, it is ensured that the force transmission between the force transmission components is reasonable and the connection is tight.

[0040] like Figure 9~Figure 11As shown, this embodiment provides a connection structure between a supporting structure and a supporting corbel, including a backing plate 1 embedded in the supporting structure, and the backing plate 1 is connected to the transverse supporting angle steel and the oblique supporting angle steel of the standard angle steel corbel 12 by bolts.

[0041] An adjustable top plate 11 is arranged above the transverse support angle steel, and the third high-strength screw is vertically fixed at the four corners of the bottom surface of the adjustable top plate 11. The transverse support angle steel is provided with connecting holes corresponding to the third high-strength screw. The third high-strength screw is inserted into the connecting holes and threadedly connected with nuts above and below the transverse support angle steel respectively.

[0042] Before the standard angle steel bracket 12 is installed, the relative position is measured and released on the supporting pile body, and after removing the rectangular foam board 9 or the plastic box, a little cleaning is performed to meet the angle steel bracket installation requirements.

[0043] After the adjustable top plate 11 is combined with the standard angle steel bracket 12, it is bolted to the backing plate 1. By adjusting the inner and outer nuts on the third high-strength screw of the adjustable top plate 11, the adjustable top plate 11 is controlled to be level to ensure the consistency of the elevation of each adjustable top plate 11. After the adjustment of the adjustable top plate 11 is completed, the rear steel pad 10 is filled between the adjustable top plate 11 and the horizontal support angle steel. The number of the rear steel pads 10 is not less than two, and the total length is not less than 1 / 3 of the length of the adjustable top plate 11.

[0044] like Fig.12 As shown, if the project has special requirements for the direction of the corbel, a spring sheet 13 can be installed on multiple first high-strength screws 2 on the back plate 1. The direction of the corbel can be adjusted by adjusting the relative position of the nut on the first high-strength screw 2. At this time, the number of nuts should be increased accordingly.

[0045] The connection structure of the utility model is simple in process, eliminating the need to remove the protective layer of the steel bars of the supporting structure and the on-site welding process. The on-site installation operation is simple, the connection quality is guaranteed, the environment is environmentally friendly and pollution-free, and the recycling rate is high. It can be designed in a standardized manner, has strong industrial promotion, and has a high degree of integrated installation.

[0046] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A connection structure between a supporting structure and a steel purlin, characterized in that: The invention comprises a backing plate (1) pre-buried in a supporting structure, wherein the upper end and the lower end of the backing plate (1) are respectively connected to steel bar connectors for fixing in the supporting structure, a first high-strength screw rod (2) is vertically fixed to the four front corners of the backing plate (1), and the backing plate (1) is connected in sequence to an inner force transmission member (4), an outer force transmission member (5) and a steel purlin (8) by bolts.

2. The connection structure between the supporting structure and the steel purlin according to claim 1 is characterized in that: The steel bar connector is directly connected to the main bars of the support pile reinforcement cage or the additional stress-bearing steel bars.

3. The connection structure between the supporting structure and the steel purlin according to claim 1 is characterized in that: The steel bar connecting piece is a threaded bolt (3), additional force-bearing bars (6) are arranged in the steel bar cage of the support pile and connected to the mechanical sleeve (7), and the threaded bolt (3) and the mechanical sleeve (7) are mechanically connected.

4. The connection structure between the supporting structure and the steel purlin according to claim 1 is characterized in that: The inner force transmission member (4) and the outer force transmission member (5) are both square frame structures. The inner force transmission member (4) is provided with a transverse waist-shaped hole on the back plate facing the backrest plate (1) corresponding to the position of the first high-strength screw (2). The inner force transmission member (4) is vertically fixed with a second high-strength screw at four corners on the panel away from the backrest plate (1). The outer force transmission member (5) is provided with vertical waist-shaped holes on the back plate and the panel corresponding to the connection holes of the second high-strength screw and the steel purlin (8).

5. The connection structure between the supporting structure and the steel purlin according to any one of claims 1 to 4, characterized in that: The upper end and the lower end of the inner force transmission member extend to the outer sides of the upper end and the lower end of the outer force transmission member respectively.

6. A connection structure between a support structure and a supporting corbel, characterized in that: The invention comprises a backing plate (1) pre-buried in the supporting structure, the upper end and the lower end of the backing plate (1) are respectively connected to steel bar connectors for fixing in the supporting structure, the front four corners of the backing plate (1) are vertically fixed with first high-strength screw rods (2), and the backing plate (1) is connected to the horizontal supporting angle steel and the oblique supporting angle steel of the standard angle steel bracket (12) by bolts.

7. The connection structure between the support structure and the supporting corbel according to claim 6, characterized in that: A plastic box or a rectangular foam board (9) is placed on the front of the backrest board (1), and the size of the plastic box or the rectangular foam board (9) is slightly larger than that of the backrest board.

8. The connection structure between the support structure and the supporting corbel according to claim 6, characterized in that: An adjustable top plate (11) is arranged above the transverse support angle steel, and a third high-strength screw is vertically fixed at four corners of the bottom surface of the adjustable top plate (11). The transverse support angle steel is provided with connection holes corresponding to the third high-strength screw, and the third high-strength screw is inserted into the connection holes and is threadedly connected to nuts above and below the transverse support angle steel, respectively. A rear steel pad (10) is filled between the adjustable top plate (11) and the transverse support angle steel.

9. The connection structure of the supporting structure and the supporting corbel according to claim 8, characterized in that: The number of the rear steel pads (10) is not less than two, and the total length is not less than 1 / 3 of the length of the adjustable top plate (11).

10. The connection structure between the support structure and the supporting corbel according to any one of claims 6 to 9, characterized in that: A spring sheet (13) is mounted on the first high-strength screw (2).

Images