High-strength special-shaped H-shaped steel

Abstract

The invention provides high-strength special-shaped H-shaped steel which comprises an H-shaped steel body. The H-shaped steel body is composed of an upper leg, a lower leg and a waist. The waist is connected between the upper leg and the lower leg. The upper leg and the lower leg are perpendicular to the waist. The high-strength special-shaped H-shaped steel is characterized by further comprising reinforcing ribs arranged on the waist; the H-shaped steel body and the reinforcing ribs are integrally formed. According to the high-strength special-shaped H-shaped steel, the door leaf production technology is simplified, the product quality and the production efficiency are improved, the door leaf resistance is enhanced, the sealing reliable performance is improved, and the high promotional value is achieved.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a high-strength special-shaped I-shaped steel, which is especially suitable for use on the door of protective equipment in underground protective engineering. Background technique [0002] The door leaf structure of the protective equipment door in the existing protective engineering, because the design for many years is to weld the embedded pressure plate on the standard channel steel or weave the steel mesh in the steel plate bending frame and then pour the concrete, the process is complicated, the manufacturing process is heavy, and the precision is controlled. Difficulty and other disadvantages, its function is airtight, and the second is to bear the pressure of the door leaf. For doors with protective and airtight function requirements, this force-bearing and airtight condition must be provided. Due to the complex forming process and cumbersome process of channel steel and ...

AI Technical Summary

Problems solved by technology

[0002] The door leaf structure of the protective equipment door in the existing protective engineering, because the design for many years is to weld the embedded pressure plate on the standard channel steel or weave the steel mesh in the steel plate bending frame and then pour the concrete, the process is complicated, the manufacturing process is heavy, and the precision is controlled. Difficulty and other disadvantages, its function is to seal, and the second is to bear the pressure of the door leaf. For doors with protective and airtight function requirements, this force-bearing and airtight condition must be provided.

Due to the complex and cumbersome forming process of channel steel and reinforced concrete in the original product design, not only the workload is heavy, it takes up a lot of resources, but also the structure is heavy and cannot be disassembled, which affects the safety and efficiency of transportation and installation.

Manual positioning is required during production, and the workload increases. Secondly, deformation will occur during welding, which will affect the straightness. In addition, manual welding must be used, and most parts cannot be automatically welded due to many welding processes and the disadvantage of inaccurate positioning. , it is more likely that there are factors such as virtual welding and false welding, and the problems of weakened resistance and non-sealed, thus affecting product quality

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