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Steel stair

A technology of stairs and steel plates, which is applied to stairs, ladder-like structures, and pedals, can solve the problems of complex manufacturing process, difficulty in popularizing steel stairs, and thick plates, so as to reduce material costs, facilitate popularization and use, and reduce production costs. Effect

Pending Publication Date: 2022-01-14
刘旭
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The stairs used in traditional reinforced concrete buildings are concrete stairs, the manufacturing process is complex, consume a lot of high energy consumption materials such as cement, sand and gravel, the cost is high, and it is not energy-saving and environmentally friendly
Steel stairs are also used in existing steel structure buildings. Steel stairs are generally made of steel plates that are folded or welded.
High cost is also an important reason for the difficulty of promoting steel stairs

Method used

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Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 As shown, the present invention is a steel staircase, which consists of steps 2 with a set of regular grooves 3, and the function of the grooves is to increase the rigidity of the steel plate. The length direction of the regular groove 3 is perpendicular to the width direction of the step 2, which can transmit the force applied on the step to the vertical board. The side end of the step 2 has a side sealing plate 4 which can make the side end of the step smooth and increase rigidity at the same time.

Embodiment 2

[0027] For the steel staircase described in embodiment 1, the length of the regular groove 3 is 50-400mm, the width of the regular groove 3 is 15-100mm, and the depth of the regular groove 3 is The fruit is best placed within the range of 2-50mm.

Embodiment 3

[0029] Embodiment 1 or 2 or the steel staircase described above, the thickness of the step 2 is 1.2-4.0mm.

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Abstract

The invention relates to a steel stair. A steel stair is also used in an existing steel structure building, the steel stair is generally formed by folding or welding a steel plate, the steel plate is a flat steel plate, the thickness of the used plate is large, and the manufacturing cost is high. The steel stair comprises steps, wherein each step is provided with a set of regular grooves, the length direction of the regular grooves is perpendicular to the width direction of the step, and a side sealing plate and / or a side plate is arranged at the side end of each step. The steel stair is used as a building component.

Description

technical field [0001] The invention belongs to the field of civil engineering and relates to stairs used in concrete buildings and steel structure buildings. Background technique [0002] The stairs used in traditional reinforced concrete buildings are concrete stairs. The manufacturing process is complicated, and a large amount of high-energy-consuming materials such as cement and sand are consumed. The cost is high, and it is not energy-saving and environmentally friendly. Steel stairs are also used in existing steel structure buildings. Steel stairs are generally formed by folding or welding steel plates. High cost is also an important reason why steel stairs are difficult to promote. Contents of the invention [0003] The present invention improves the shape coefficient of the stairs by changing the geometric shape of the steel plate, and provides a new type of stairs with low cost, material saving, and industrial production line production. [0004] Wood of the pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04F11/02E04F11/112E04F11/17
CPCE04F11/02E04F11/112E04F11/17
Inventor 刘旭
Owner 刘旭
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