Steel truss girder splicing operation platform

Abstract

The utility model discloses a steel truss girder splicing operation platform which comprises a plurality of supporting frames fixedly arranged on the ground side by side, the tops of the supporting frames are connected with a supporting rack through a jacking oil cylinder, and two cantilevers used for supporting an upper chord member are arranged on one side of the supporting rack side by side. The upper chord member is provided with a middle splicing point and side splicing points, the two cantilevers are symmetrically arranged on the two sides of the middle splicing point, operation platforms are arranged on the portions, corresponding to the splicing points, of the side portions of the supporting rack, and guardrails are arranged on the outer sides of the operation platforms. The device has the advantages that the assembling efficiency is improved, and the operation of workers is safe.

Description

TECHNICAL FIELD

[0001] The utility model belongs to steel truss beam assembling technical field especially relates to a steel truss beam assembling operation platform. BACKGROUND

[0002] Steel truss beam is usually composed of upper chord, lower chord, vertical web member and diagonal web member. At present, when assembling steel truss beam, first, hoist is used to hoist web member to the upper side of lower chord, and then web member is fixedly connected with lower chord by using bolt, then upper chord is hoisted to the upper side of web member by using hoist, and then worker climbs on web member to install bolt to fix web member and upper chord. This kind of assembling mode is not only inconvenient to operate, but also has low assembling efficiency and safety risk. SUMMARY

[0003] The utility model discloses a steel truss beam assembling operation platform, which effectively improves the assembling efficiency and ensures the safety of workers.

[0004] Therefore, the utility model provides a steel truss beam assembling operation platform, which comprises a plurality of support frames fixedly arranged side by side on the ground, the top of the support frame is connected with a support rack through a jacking oil cylinder, one side of the support rack is provided with two cantilevers for supporting the upper chord in parallel, the upper chord has a middle joint point and a side joint point, the two cantilevers are symmetrically arranged on the two sides of the middle joint point, and a standing platform is arranged on the side of the support rack corresponding to each joint point.

[0005] Specifically, a support frame is arranged at each joint point of the upper chord, and a ladder is arranged on the support frame to facilitate workers to enter the standing platform.

[0006] Specifically, the support frame is welded by section steel.

[0007] Specifically, the support rack adopts a tower crane frame body.

[0008] Compared with the prior art, the utility model has the following beneficial effects: the upper chord is stably supported by the cantilever, workers can stand on the corresponding standing platform to install the vertical web member and the diagonal web member, which can ensure the assembling efficiency and the safety of workers, the support rack is supported and installed on the support frame by the jacking oil cylinder, the support rack is lifted and lowered by the jacking oil cylinder, so that it can adapt to steel truss beams of different heights and sizes. In addition, when the upper chord is connected with the web member, the support rack is lowered, and then the web member can be easily connected with the lower chord on the ground. During the whole connection process, the cantilever can stably support the steel truss beam, so as to ensure the connection quality. BRIEF DESCRIPTION OF DRAWINGS

[0009] In order to more clearly illustrate the technical scheme in the embodiments of the present utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are only some embodiments of the present utility model, and for the ordinary skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0010] Figure 1 It is the main view of the steel truss girder assembling operation platform provided by the embodiments of the present utility model,

[0011] Figure 2 It is the side view of the steel truss girder assembling operation platform provided by the embodiments of the present utility model.

[0012] Among them: 1, support frame, 2, jacking oil cylinder, 3, support rack, 4, upper chord, 5, cantilever, 6, middle joint point, 7, side joint point, 8, standing platform, 9, guardrail. Specific implementation

[0013] The technical scheme in the embodiments of the present utility model will be described clearly and completely in combination with the drawings in the embodiments of the present utility model, obviously, the described embodiments are only some embodiments of the present utility model, not all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the present utility model.

[0014] In the description of the present utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present utility model.

[0015] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0016] Referring to Figure 1 and Figure 2The utility model provides a steel truss beam assembling operation platform, which comprises a plurality of support frames 1 arranged side by side and fixed on the ground, the top of the support frame 1 is connected with a support stand 3 through a jacking oil cylinder 2, one side of the support stand 3 is provided with two cantilevers 5 used for supporting upper chord bars 4, the upper chord bar 4 has a middle splicing point 6 and a side splicing point 7, the middle splicing point 6 is used for being connected with a vertical web member, and the side splicing point 7 is used for being connected with an inclined web member, the two cantilevers 5 are symmetrically arranged on the two sides of the middle splicing point 6, a standing platform 8 is arranged on the side of the support stand 3 and corresponds to each splicing point, and a guardrail 9 is arranged outside the standing platform 8.

[0017] When the upper chord bar 4, the lower chord bar, the vertical web member and the inclined web member of the steel truss beam need to be spliced, the upper chord bar 4 is first hoisted to the cantilever 5 by using a lifting appliance, the cantilever 5 is used for supporting the upper chord bar 4, then the vertical web member is hoisted by using the lifting appliance, the upper joint end of the vertical web member is aligned with the middle splicing point 6, workers stand on the middle standing platform 8 to install connecting bolts and tighten the connecting bolts, the splicing of the upper chord bar 4 and the vertical web member is realized, then the inclined web member is hoisted by using the lifting appliance, the upper joint end of the inclined web member is aligned with the side splicing point 7, workers stand on the two side standing platforms 8 to install connecting bolts and tighten the connecting bolts, the splicing of the upper chord bar 4 and the inclined web member is realized. After the splicing of the upper chord bar 4 and the web member is completed, the support stand 3 is lowered, the web member continuously approaches the lower chord bar on the ground, and the position of the lower chord bar is adjusted, so that the splicing points on the lower chord bar are aligned with the lower joint ends of the web members, then the web member continuously descends until the web member is connected with the lower chord bar, finally, the bolts are installed and tightened, and the whole splicing of the steel truss beam is completed. When the splicing of the steel truss beam unit is completed, the steel truss beam unit is hoisted away from the cantilever 5 by using the lifting appliance, and the splicing of the next steel truss beam unit can be carried out.

[0018] In the embodiment, the upper chord bar 4 is stably supported by the cantilever 5, workers can stand on the corresponding operation platform to install the vertical web member and the inclined web member, the splicing efficiency can be ensured, and the workers are safe, the support stand 3 is supported and installed on the support frame 1 through the jacking oil cylinder 2, the support stand 3 is lifted and lowered through the jacking oil cylinder 2, so that the steel truss beam splicing of different heights and sizes can be adapted. In addition, after the connection of the upper chord bar 4 and the web member is completed, the support stand 3 is lowered, so that the web member can be conveniently spliced with the lower chord bar on the ground. During the whole splicing process, the cantilever 5 can stably support the steel truss beam, so that the splicing quality is ensured.

[0019] Specifically, a support frame 1 is arranged at each splicing point of the upper chord bar 4, a ladder (not shown in the figure) for conveniently entering the operation platform is arranged on the support frame 1, and workers can enter the operation platform to work through the convenient ladder. The support frame 1 can be welded from waste section steel, and the support stand 3 can be composed of waste tower crane frames.

[0020] Any of the above technical solutions of the utility model discloses, if it discloses numerical range except declaration, then the numerical range disclosed is preferred numerical range, and any person skilled in the art should understand that: preferred numerical range is only the numerical value of obvious technical effect or representative numerical value among many implementable numerical values. Because there are many values, it is impossible to enumerate, therefore, the utility model discloses partial numerical value to illustrate the technical scheme of the application, and the above enumerated numerical value should not constitute the restriction of the protection scope of the present application.

[0021] Meanwhile, the above utility model discloses or involves the mutually fixed connection of component or structural member, and except declaration, fixed connection can be understood as: detachable fixed connection (for example, bolt or screw connection), and also can be understood as: non-detachable fixed connection (for example, riveting, welding), of course, the mutually fixed connection can also be replaced by integral structure (for example, integrally formed by using casting process) (obviously, except for integral forming process).

[0022] In addition, the above utility model discloses any of the technical solutions in the application of the term for indicating position relation or shape except declaration its meaning includes approximate, similar or close state or shape. Any component provided by the utility model can be assembled by a plurality of individual components, or can be an individual component manufactured by integral forming process.

[0023] The above embodiment is only an example for clearly illustrating the utility model, and is not limited to the embodiment. For ordinary skilled person in the art, on the basis of the above description, other different forms of changes or changes can be made. Here, it is not necessary and also cannot enumerate all the embodiments. The obvious changes or changes derived therefrom are still within the protection scope of the utility model.

Claims

1. A steel truss assembly work platform, characterized by: The utility model relates to a kind of support frame (1) for erecting large-scale steel structure, including and side by side fixedly arranged on the ground multiple support frame (1), the top of support frame (1) is connected with support stand (3) by jacking oil cylinder (2), one side of support stand (3) is equipped with two cantilevers (5) for supporting upper chord (4) side by side, upper chord (4) has middle splice point (6) and side splice point (7), two cantilevers (5) are symmetrically arranged in the middle splice point (6) two sides, and side of support stand (3) is equipped with standing platform (8) at corresponding each splice point, the outer side of standing platform (8) is equipped with guardrail (9).

2. The steel truss assembly platform of claim 1, wherein: Support frame (1) is arranged at each splice point of upper chord (4), and ladder is arranged on support frame (1) to facilitate personnel to enter standing platform (8).

3. The steel truss assembly platform of claim 2, wherein: Support frame (1) is welded by section steel.

4. The steel truss assembly platform of claim 1, wherein: Support stand (3) uses tower crane frame body.

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