Solid-web large-section spiral stair box girder shaped like Chinese character ''mu'' and manufacturing method

A technology of spiral staircase and large section, applied in the direction of stairs, etc., to achieve the effect of strong overall shape, beautiful appearance, and reduction of welding deformation of welding seam

Inactive Publication Date: 2017-05-10
ZHEJIANG JINGGONG STEEL BUILDING GRP
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  • Abstract
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Problems solved by technology

[0004] The first purpose of the present invention is to provide the applicant with a solid-web type large-section spiral

Method used

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  • Solid-web large-section spiral stair box girder shaped like Chinese character ''mu'' and manufacturing method
  • Solid-web large-section spiral stair box girder shaped like Chinese character ''mu'' and manufacturing method
  • Solid-web large-section spiral stair box girder shaped like Chinese character ''mu'' and manufacturing method

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Embodiment Construction

[0022] Such as Figure 1-6 As shown, the present invention discloses a solid-web type large-section spiral staircase mesh-shaped box beam, which includes a mesh-shaped box body, a pallet 6 and a step board 5. The mesh-shaped box body is enclosed by a large cross-section spiral surface bottom plate 1, two sides and middle bent and twisted webs (2, 3), and an upper small cross-section strip spiral surface cover plate 4. The large cross-section spiral surface bottom plate 1 is an ultra-wide panel that rises in a spirally curved shape; the middle and side curved and twisted webs (2, 3), a total of four pieces of equal width, are evenly spaced in the vertical direction. On the upper surface of the spiral bottom plate 1; the top strip-shaped spiral cover plate 4 is embedded between the webs (the bent and twisted webs 2 on both sides and the middle bent and twisted web 3) and the upper surface is connected to the bent and twisted webs The tops of the webs (2, 3) are flush.

[0023] A ...

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Abstract

The invention belongs to the technical field of construction steel structures, and particularly relates to a solid-web large-section spiral stair box girder shaped like a Chinese character ''mu'' and a manufacturing method. The box girder is defined by a large-section spiral face bottom plate, four middle and side twisted webs and top small-section strip-shaped spiral face cover plates. The spiral face bottom plate is a super-wide panel with the spiral curved face ascending in appearance. The four twisted webs are equal in width and are uniformly and vertically distributed on the surface of the spiral face bottom plate at equal intervals. The spiral face cover plates are embedded between the twisted webs, and the upper surfaces of the spiral face cover plates are flush with the tops of the twisted webs. By adoption of the solid-web large-section spiral stair box girder shaped like the Chinese character ''mu'', the design and manufacturing of a steel girder structure of a solid-web twisted stair are achieved, and the box girder has the advantages of simple and reasonable structural design and the like.

Description

Technical field [0001] The invention belongs to the technical field of building steel structures, and in particular relates to a solid web type large-section spiral staircase mesh-shaped box beam and a manufacturing method. Background technique [0002] With the vigorous development of building steel structures, steel spiral staircases are favored by architects due to their graceful shape, light weight and high strength. Conventional spiral staircases generally use small cross-section box steel beams on both sides, hollowed out in the middle and set up a stepping board directly on the upper part. This kind of structure has a lack of visual appearance, which gives people a sigh of inadequacy in beauty. [0003] In view of this, the applicant provides a solid-web type large-section spiral staircase mesh-shaped box beam and a manufacturing method, which connects the bottom spiral steel beams into a whole to form a strong visual impact. This case was born. Summary of the invention [0...

Claims

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Application Information

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IPC IPC(8): B21D5/14B21D11/06B23P15/00E04F11/02
CPCB21D5/14B21D11/06B23P15/00E04F11/02
Inventor 张金辉阙子雄陈辉孙倩楠王涛张伟何剑峰夏岳鑫
Owner ZHEJIANG JINGGONG STEEL BUILDING GRP
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