Steel truss waist beam lap joint structure

Abstract

The utility model relates to the technical field of building construction, in particular to a steel truss waist rail lap joint structure which comprises a bracket and a supporting plate. The upper surface of the bracket is used for supporting a steel waist beam, and the supporting plate is arranged above the bracket to support a truss body. According to the utility model, the steel waist beam and the steel truss can be supported, the construction difficulty caused by the gravity of the truss body is reduced, and the connection strength and stability of the steel waist beam and the steel truss are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a steel truss waist beam overlapping structure. Background Art

[0002] In the continuous development of modern architecture, the available ground area is decreasing, and the space for building development is constantly extending upward, which makes the number of high-rise buildings and super high-rise buildings grow continuously. In order to ensure the safety of buildings, the depth of foundation pit excavation is also increasing. In the process of deep foundation pit excavation, due to the shortage of urban land, the construction site usually does not have the conditions for slope reduction. At the same time, when the foundation pit is deep enough, slope reduction and temporary support cannot meet the construction needs and ensure construction safety. Generally, support structures are used for temporary support to ensure the stability of the soil wall of the foundation pit.

[0003] Steel trusses are a commonly used support method for foundation pit support in building construction. During construction, the steel trusses are connected to the support piles on the side walls of the foundation pit. During the connection process, due to the gravity and volume of the steel trusses, there will be an angle deviation in the connection between the ends of the steel trusses and the support piles, resulting in serious axial force loss of the steel trusses, reducing its supporting force, and posing certain safety hazards. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a steel truss waist beam overlap structure to support the steel waist beam and the steel truss.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The steel truss waist beam lap joint structure comprises a bracket and a support plate; the upper surface of the bracket is used to support the steel waist beam, and the support plate is arranged above the bracket to support the truss frame body.

[0007] As an optional solution, the support plate is fixedly connected to the steel waist beam.

[0008] As an optional solution, the support plate is arranged on the upper surface of the bracket so as to be movable and adjustable along the length direction of the bracket.

[0009] As an optional solution, it also includes bolts and nuts; a strip-shaped opening is opened on the support plate, and a plurality of limit openings are opened in the strip-shaped opening along the length direction; the bolt passes through the strip-shaped opening, the bracket and is threadedly connected to the nut; a limit block is coaxially provided on the bolt; tightening the bolt can make the limit block clamp in different limit openings to adjust the length of the support plate extending out of the bracket.

[0010] As an optional solution, a placement groove is provided on the upper surface of the support plate, and the strip-shaped opening is provided on the bottom wall of the placement groove.

[0011] As an optional solution, when the bolt is tightened so that the lower surface of the limit block abuts against the upper surface of the bracket, the upper surface of the nut of the bolt is flush with the upper surface of the support plate, and the lower surface of the nut is flush with the bottom wall of the placement groove.

[0012] As an optional solution, the bolts and nuts are provided in two groups, a plurality of the limiting openings are evenly arranged, and a distance between two adjacent limiting openings is the same as a distance between the two groups of bolts and nuts.

[0013] As an optional solution, the frame includes three angle steels, and the three angle steels are connected end to end to form a triangle.

[0014] By adopting the above technical solution, the utility model will have the following beneficial effects:

[0015] The utility model provides a steel truss waist beam lap joint structure, which not only supports the steel waist beam, but also supports the truss frame body by setting a bracket and a support plate. When the truss frame body and the steel waist beam are disassembled and assembled, the support assembly supports the truss frame body and gives it a certain supporting force, thereby reducing the construction difficulty caused by the gravity of the truss frame body. After the truss frame body is installed, the supporting effect of the connecting bracket on the truss frame body and the steel waist beam can improve the strength and stability of the connection between the two. Part of the position of the supporting truss frame body is adjustable, which can be matched with different truss frames to improve applicability and versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a planar structural diagram of the steel truss waist beam overlap structure described in Example 1 in the use state;

[0018] Figure 2 A three-dimensional diagram of the steel truss waist beam lap joint structure described in Example 2;

[0019] Figure 3 for Figure 1 Exploded diagram of

[0020] Figure 4 It is a front view of the steel truss waist beam lap joint structure described in Example 2;

[0021] Figure 5 A cross-sectional view of the steel truss waist beam lap joint structure described in Example 2;

[0022] Figure 6 This is a top view of the steel truss waist beam lap joint structure described in Example 2.

[0023] Figure numerals: 1, bracket; 11, angle steel; 2, support plate; 21, strip opening; 22, limit opening; 23, placement groove; 3, steel waist beam; 4, truss frame; 51, bolt; 511, limit block; 512, nut; 52, nut; 6, support pile. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical" and "

[0026] The directions or positional relationships indicated by ", "horizontal", "inside", "outside", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Example 1

[0029] Please refer to Figure 1 , the steel truss waist beam lap joint structure of this embodiment includes a bracket 1 and a support plate 2;

[0030] Among them, the bracket 1 is fixed to the side wall of the supporting pile 6 by welding, and the upper surface of the bracket 1 is used to support the steel waist beam 3; the waist beam is an effective measure to reduce the rebound deformation of the foundation pit during construction, and can effectively ensure the safety of the underground structure construction and the surrounding environment of the foundation pit. In the traditional construction method, the bracket 1 is often fixed: first fix the triangular bracket 1 to the side wall of the supporting pile 6, place the channel steel on it, and then set the dowel bar to make the steel waist beam 3 and the supporting pile 6 form a whole.

[0031] The support plate 2 is arranged above the bracket 1 and is preferably fixedly connected to the steel waist beam 3 to support the truss frame 4.

[0032] It can be seen that the steel truss waist beam overlap structure of the present embodiment not only supports the steel waist beam 3, but also supports the truss frame body 4. When the truss frame body 4 and the steel waist beam 3 are disassembled and assembled, the support plate 2 supports the truss frame body 4 and gives it a certain supporting force, thereby reducing the construction difficulty caused by the gravity of the truss frame body 4. After the truss frame body 4 is installed, the supporting effect of the connecting bracket 1 on the truss frame body 4 and the steel waist beam 3 can improve the strength and stability of the connection between the two.

[0033] Example 2

[0034] Please refer to Figure 2-6 , the steel truss waist beam lap joint structure of this embodiment includes a bracket 1 and a support plate 2;

[0035] Among them, the bracket 1 is fixed to the side wall of the supporting pile 6 by welding, and the upper surface of the bracket 1 is used to support the steel waist beam 3; the waist beam is an effective measure to reduce the rebound deformation of the foundation pit during construction, and can effectively ensure the safety of the underground structure construction and the surrounding environment of the foundation pit. In the traditional construction method, the bracket 1 is often fixed: first fix the triangular bracket 1 to the side wall of the supporting pile 6, place the channel steel on it, and then set the dowel bar to make the steel waist beam 3 and the supporting pile 6 form a whole.

[0036] The support plate 2 is arranged above the bracket 1 , and is preferably arranged on the upper surface of the bracket 1 to be movable and adjustable along the length direction of the bracket 1 to support the truss frame 4 .

[0037] It can be seen that the steel truss waist beam overlap structure of the present embodiment not only supports the steel waist beam 3, but also supports the truss frame body 4. When the truss frame body 4 and the steel waist beam 3 are disassembled and assembled, the support plate 2 supports the truss frame body 4 and gives it a certain supporting force, thereby reducing the construction difficulty caused by the gravity of the truss frame body 4. After the truss frame body 4 is installed, the supporting effect of the connecting bracket 1 on the truss frame body 4 and the steel waist beam 3 can improve the strength and stability of the connection between the two.

[0038] More importantly, since the support plate 2 can be moved and adjusted along the length direction of the support 1, the position of the supporting truss frame 4 is adjustable, different parts of the truss frame 4 can be supported, and it can also be matched with truss frames 4 of different sizes, thereby improving applicability and versatility.

[0039] Specifically, the steel truss waist beam lap joint structure of this embodiment also includes bolts 51 and nuts 52; a strip opening 21 extending along the length direction of the support plate 2 is opened on the support plate 2, and multiple arc-shaped limit openings 22 are symmetrically opened on both sides of the strip opening 21 along the length direction; the bolt 51 passes through the strip opening 21 and the bracket 1 and is threadedly connected with the nut 52; the end of the screw rod of the bolt 51 close to the nut 512 is coaxially fixedly connected with an annular limit block 511, and the outer diameter of the limit block 511 is slightly smaller than the diameter of the limit opening 22 and larger than the width of the strip opening 21. When in use, tightening the bolt 51 can make the limit block 511 drop until it is clamped in different limit openings 22, so as to realize the movement and adjustment of the support plate 2 along the length direction of the bracket 1, that is, the position of the supporting truss frame body 4 is adjusted by adjusting the length of the support plate 2 extending out of the bracket 1.

[0040] More specifically, a square placement groove 23 can be opened on the upper surface of the support plate 2, and the strip opening 21 is opened on the bottom wall of the placement groove 23, so that after tightening the bolt 51, the nut 512 can be stored in the placement groove 23 to prevent the nut 512 from protruding and affecting the support truss frame 4.

[0041] Furthermore, the height of the limit block 511 and the nut 512 can be set so that when the bolt 51 is tightened so that the lower surface of the limit block 511 abuts against the upper surface of the bracket 1, the upper surface of the nut 512 is flush with the upper surface of the support plate 2, thereby improving the flatness of the entire upper surface of the support plate 2; the lower surface of the nut 512 is flush with the inner bottom wall of the placement groove 23, so that the support plate 2 can be better limited to prevent the support plate 2 from rotating under the action of the truss frame 4.

[0042] Specifically, two groups of bolts 51 and nuts 52 can be provided, and a plurality of limit openings 22 are evenly arranged, and the spacing between two adjacent limit openings 22 is the same as the spacing between the two groups of bolts 51 and nuts 52. The movement and rotation of the support plate 2 are restricted by two groups of matching bolts 51 and nuts 52, and the restriction effect is better. Of course, more than two groups of bolts 51 and nuts 52 can also be provided, as long as the number of bolts 51 and nuts 52 does not affect the use in principle.

[0043] Specifically, the frame can be configured to include three angle steels 11 with a specification of L80x8. The three angle steels 11 are welded end to end to form a stable triangular structure. One straight side of the triangular structure is welded to the supporting pile 6 at the bottom elevation of the steel waist beam 3, and the other straight side of the triangular structure is used to support the steel waist beam 3. Multiple such triangular structures are provided, and are arranged at intervals of 1.4m along the length direction of the foundation pit (set with alternate piles).

[0044] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent application. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. Steel truss waist beam lap joint structure, characterized in that: It comprises a bracket (1) and a supporting plate (2); the upper surface of the bracket (1) is used to support a steel waist beam (3), and the supporting plate (2) is arranged above the bracket (1) to support a truss frame body (4).

2. The steel truss waist beam lap joint structure according to claim 1 is characterized in that: The support plate (2) is fixedly connected to the steel waist beam (3).

3. The steel truss waist beam lap joint structure according to claim 1 is characterized in that: The support plate (2) is arranged on the upper surface of the bracket (1) so as to be movable and adjustable along the length direction of the bracket (1).

4. The steel truss waist beam lap joint structure according to claim 3 is characterized in that: The invention also comprises a bolt (51) and a nut (52); a strip-shaped opening (21) is provided on the support plate (2), and a plurality of limit openings (22) are provided in the strip-shaped opening (21) along the length direction; the bolt (51) passes through the strip-shaped opening (21) and the support frame (1) and is threadedly connected to the nut (52); a limit block (511) is coaxially provided on the bolt (51); and by tightening the bolt (51), the limit block (511) can be clamped in different limit openings (22) to adjust the length of the support plate (2) extending out of the support frame (1).

5. The steel truss waist beam overlap structure according to claim 4 is characterized in that: A placement groove (23) is provided on the upper surface of the support plate (2), and the strip-shaped opening (21) is provided on the inner bottom wall of the placement groove (23).

6. The steel truss waist beam overlap structure according to claim 5, characterized in that: When the bolt (51) is tightened so that the lower surface of the limit block (511) abuts against the upper surface of the bracket (1), the upper surface of the nut (512) of the bolt (51) is flush with the upper surface of the support plate (2), and the lower surface of the nut (512) is flush with the inner bottom wall of the placement groove (23).

7. The steel truss waist beam lap joint structure according to claim 6, characterized in that: The bolts (51) and nuts (52) are provided in two groups, and the plurality of limit openings (22) are evenly arranged, and the distance between two adjacent limit openings (22) is the same as the distance between the two groups of bolts (51) and nuts (52).

8. The steel truss waist beam overlap structure according to claim 1, characterized in that: The frame body comprises three angle steels (11), and the three angle steels (11) are connected end to end to form a triangle.

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