Herringbone bracket for slippage construction of ultrahigh single steel truss

Abstract

The herringbone bracket comprises a trapezoid bearing frame body, a throwing support and a temporary support, the bottom of the trapezoid bearing frame body is placed on a bearing trolley for sliding, a side plate is arranged on the side face of the trapezoid bearing frame body and connected with the throwing support through a bolt, a temporary stable structure is kept before sliding, and the temporary support is connected with the throwing support through a bolt. Then the temporary support and a web member at the end of the single steel truss are connected in a welded mode and integrally hoisted to the herringbone bracket, the temporary support and a supporting beam at the top of the trapezoidal bearing frame body are temporarily fixed through bolts, the herringbone bracket and the steel truss integrally form a stable structure, and then the throwing support is dismantled; and the bearing trolley is moved in a chain block or pushing mode for sliding construction.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction, in particular to a herringbone bracket used for the sliding construction of an ultra-high single-frame steel truss. Background Art

[0002] At present, the traditional steel structure sliding construction method is generally applied to steel grids. When the steel truss is constructed by the sliding method, two or more trusses are generally combined into a whole for sliding construction. However, when two or more trusses are combined into a whole for sliding, although the whole is stable, they are heavy and difficult to lift. They are severely restricted by the surrounding environment and have a limited scope of application. If a single truss is used for sliding, especially when the steel truss has a large span and a high height, the stability of the single truss is poor. When sliding directly, the truss is prone to deformation, affecting the overall quality, and the risk is increased, which is easy to cause safety accidents. Utility Model Content

[0003] The utility model provides a herringbone bracket for sliding construction of an ultra-high single-frame steel truss to solve the technical problems existing in the known technology, thereby improving the stability of the single-frame steel truss, reducing the difficulty of sliding construction of the steel truss, and increasing the application scope of the sliding method.

[0004] The utility model is implemented as follows: a herringbone bracket for sliding construction of an ultra-high single-frame steel truss comprises a trapezoidal bearing frame body, a castellated support and a temporary support. The bottom support beam and the top support beam of the trapezoidal bearing frame body are welded by two oblique steel beams to form a frame of the trapezoidal bearing frame body, a reinforcing beam is added in the middle of the two oblique steel beams, a connecting plate with a through hole is welded on one side of the middle of the top support beam, the castellated support comprises a support rod, a connecting piece with a through hole at the top end of the support rod and a base at the bottom end of the support rod, the castellated support is obliquely fixed to one side of the trapezoidal bearing frame body by connecting bolts screwed into the connecting piece and the connecting plate, a temporary support is fixed on the top surface of the top support beam, the temporary support comprises a support beam and a support side plate, a bottom wing plate of the horizontally arranged support beam is provided with a connecting bolt hole for connecting with the top support beam, and a vertical support side plate for welding and connecting with the steel truss is welded to the end face of the support beam located on a different side from the castellated support beam with the trapezoidal bearing frame body as a dividing interface.

[0005] The connecting pieces are a pair, and the connecting plate is inserted between the pair of connecting pieces.

[0006] The bottom supporting beam, top supporting beam, oblique steel beam, reinforcing beam and support beam are all made of H-shaped steel.

[0007] Reinforcement plates are provided at all beam connection locations.

[0008] The advantages and positive effects of the utility model are:

[0009] 1. The adoption of the herringbone bracket reduces the minimum unit of the traditional ultra-high steel truss sliding method construction and expands the application scope of the sliding method.

[0010] 2. The sliding construction of the super-high single steel truss reduces the dependence on the performance of the lifting machinery and reduces the machinery costs. At the same time, it reduces the reinforcement costs of large machinery for special structures (such as basement roofs, etc.), saving costs.

[0011] 3. The super-high steel truss is constructed by single-frame sliding. The sliding process requires less power, which reduces the difficulty of construction.

[0012] 4. The structure is simple and has large bearing capacity. The force during the sliding process is basically the same as the original force of the steel truss, with small deformation, which improves the construction quality of the steel structure.

[0013] 5. The overall structure is stable. Before the steel structure is installed, a guy prop is set up for temporary stability. During the sliding process, the steel truss and the herringbone frame form a door shape as a whole, which has high stability and the overall process is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a structural schematic diagram of a trapezoidal bearing frame of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the tossing support of the utility model;

[0017] Figure 4 It is a structural schematic diagram of a temporary support of the utility model;

[0018] In the figure: 1. trapezoidal load-bearing frame; 1-1. bottom support beam; 1-2. oblique steel beam; 1-3. reinforcing beam; 1-4. top support beam; 1-5. connecting plate; 2. guy support; 2-1. support rod; 2-2 connecting device; 2-3. base; 3. temporary support; 3-1. support beam; 3-2. support side plate; 3-3. reinforcing plate; 3-4. connecting bolt hole; 4. bolt. DETAILED DESCRIPTION

[0019] 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. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0021] In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features.

[0022] Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the invention, unless otherwise specified, "plurality" means two or more.

[0023] In the description of the invention of the utility model, 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 invention of the utility model can be understood according to specific circumstances.

[0024] like Figure 1-4As shown, the herringbone bracket for sliding construction of super-high single-frame steel truss of the utility model comprises a trapezoidal bearing frame body 1, a castellation 2, and a temporary support 3. The bottom support beam 1-1 of the trapezoidal bearing frame body 1 and the top support beam 1-4 are welded by two oblique steel beams 1-2 to form a frame of the trapezoidal bearing frame body. A reinforcing beam 1-3 is added in the middle of the two oblique steel beams. A connecting plate 1-5 with a through hole is welded on one side of the middle of the top support beam 1-4. The castellation 2 comprises a support rod 2-1, a connecting piece 2-2 with a through hole at the top of the support rod 2-1, and a The base 2-3, the guy brace 2 is obliquely fixed to one side of the trapezoidal load-bearing frame body 1 by screwing the connecting bolts of the connecting piece 2-2 and the connecting plate 1-5, and a temporary support 3 is fixed on the top surface of the top joist 1-4. The temporary support 3 includes a support beam 3-1 and a support side plate 3-2. The bottom wing plate of the horizontally arranged support beam 3-1 is provided with a connecting bolt hole 3-4 for connecting with the top joist 1-4. With the trapezoidal load-bearing frame body 1 as the dividing interface, the end face of the support beam located on the different side of the guy brace 2 is welded with a vertical support side plate 3-2 for welding connection with the steel truss.

[0025] Preferably, the connecting pieces 2-2 are a pair, and the connecting plate 1-5 is inserted between the pair of connecting pieces 2-2.

[0026] Preferably, the bottom supporting beam 1-1, the top supporting beam 1-4, the inclined steel beam 1-2, the reinforcing beam 1-3, and the support beam 3-1 are all made of H-shaped steel.

[0027] Preferably, reinforcing plates are provided at all beam connection locations.

[0028] Specifically, the herringbone bracket used for the sliding construction of the super-high single-frame steel truss includes a trapezoidal bearing frame 1, a castellation 2, and a temporary support 3. The trapezoidal bearing frame includes a bottom support beam 1-1, an oblique steel beam 1-2, a reinforcing beam 1-3, a top support beam 1-4, and a connecting plate 1-5. The bottom support beam 1-1 and the top support beam 1-4 are welded by two oblique steel beams 1-2 to form the framework of the trapezoidal bearing frame, and a reinforcing beam 1-3 is added in the middle of the two oblique steel beams to ensure the overall bearing capacity, and the connecting plate 1-5 is welded to the middle of the top support beam 1-4. The castellation 2 includes a support rod 2-1, a connecting plate 2-2, and a base 2-3. A connecting plate 2-2 is welded at both ends of the support rod 2-1, and then bolts are used to connect the connecting plate 1-5 and the base 2-3 to form a stable structure. The temporary support 3 comprises a support beam 3-1, a support side plate 3-2, a reinforcing plate 3-3, and a connecting bolt hole 3-4. The support side plate 3-2 is welded to one end of the support beam, and the other side of the support side plate 3-2 is welded to the steel truss. A connecting bolt hole 3-4 is opened at the wing plate at the bottom of the support beam for connecting with the top support beam 1-4.

[0029] In this implementation case, the beams (including: bottom joist, top joist, diagonal steel beam, reinforcement beam, support beam) are all made of H-shaped steel. Reinforcement plates are set at all beam connection parts. The connection bolt holes on the upper part of the support side plate need to be drilled at the same time as the bolt holes on the top of the joist to ensure one-to-one correspondence.

[0030] After the above preparations are completed in this implementation case, the following construction is carried out: After the track and the carrier vehicle of the sliding method are installed, a trapezoidal carrier bracket is installed on the carrier vehicle, and then the brace is connected to the trapezoidal carrier bracket by bolts to form a temporary stable structure. The other side of the temporary support side plate is welded to the end web of the steel truss, and then the single steel truss with temporary supports at both ends is lifted. After ensuring safety, the production beams of the temporary supports at both ends are placed on the trapezoidal carrier bracket respectively, and then fixed by bolts to form a portal stable structure, and then the brace is removed, and the sliding construction is carried out, the steel truss is slid to the designated position, and the steel truss is placed to the designated position by a jack, and connected with other trusses to form a stable structure, and the temporary support can be cut and recycled at this time.

[0031] The bottom of the trapezoidal bearing frame of the utility model is placed on a bearing trolley for sliding, and a side plate is provided on the side thereof which is connected to a castor by bolts. Before sliding, a temporary stable structure is maintained, and then a temporary support is welded to the end web of a single steel truss, and the whole is hoisted to the herringbone bracket. The temporary support and the supporting beam on the top of the trapezoidal bearing frame are temporarily fixed by bolts, and the herringbone bracket and the steel truss form a stable structure as a whole. Then the castor is removed, and the bearing trolley is moved by a fall chain or a jacking method to perform sliding construction.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A herringbone bracket for sliding construction of a super-high single-frame steel truss, comprising a trapezoidal bearing frame (1), a castor (2), and a temporary support (3), characterized in that: The bottom support beam (1-1) and the top support beam (1-4) of the trapezoidal support frame (1) are welded by two oblique steel beams (1-2) to form a frame of the trapezoidal support frame, a reinforcing beam (1-3) is added in the middle of the two oblique steel beams, a connecting plate (1-5) with a through hole is welded on one side of the middle of the top support beam (1-4), the tossing brace (2) comprises a brace rod (2-1), a connecting piece (2-2) with a through hole located at the top end of the brace rod (2-1), and a base (2-3) located at the bottom end of the brace rod (2-1), and the tossing brace (2) is screwed into the connecting piece (2-2) and the connecting plate The connecting bolts (1-5) fix the guy (2) obliquely to one side of the trapezoidal bearing frame (1); a temporary support (3) is fixed on the top surface of the top support beam (1-4); the temporary support (3) includes a support beam (3-1) and a support side plate (3-2); the bottom wing plate of the horizontally arranged support beam (3-1) is provided with a connecting bolt hole (3-4) for connecting with the top support beam (1-4); the end surface of the support beam located on a different side from the guy (2) with the trapezoidal bearing frame (1) as the interface is welded with a vertical support side plate (3-2) for welding and connecting with the steel truss.

2. The herringbone bracket for sliding construction of super-high single-frame steel truss according to claim 1 is characterized in that: The connecting pieces (2-2) form a pair, and the connecting plate (1-5) is inserted between the pair of connecting pieces (2-2).

3. The herringbone bracket for sliding construction of super-high single-frame steel truss according to claim 1 is characterized in that: The bottom supporting beam (1-1), the top supporting beam (1-4), the oblique steel beam (1-2), the reinforcing beam (1-3) and the supporting beam (3-1) are all made of H-shaped steel.

4. The herringbone bracket for sliding construction of super-high single-frame steel truss according to claim 3 is characterized in that: Reinforcement plates are provided at all beam connection locations.

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