Hot-rolled I-beam

Keyword:

Hot-rolled I-beam

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Classification:

Building materials

Technical documentation:

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Details Introduction

Hot-rolled I-beams (also known as H-beams) are hot-rolled steel sections with an "I" shaped cross-section. Their cross-section features wide flanges and a thin web, offering advantages such as high bending resistance, good structural stability, and light weight. They are widely used in various fields. The following are their main applications and specific scenarios:
I. Construction Engineering
This is the primary application of hot-rolled I-beams, primarily serving as load-bearing structural components:

Building Construction: Used in the framework of large factories, warehouses, and high-rise buildings, acting as beams and columns to bear the main load. For example, crane beams in industrial plants and load-bearing beams in workshops utilize their bending resistance to support roof loads, equipment, and personnel.
Bridge Construction: Used as main beams or cross beams in the superstructure of small and medium-sized bridges, supporting bridge deck loads and transferring them to the piers. Their lightweight nature reduces the bridge's self-weight, lowering construction costs.
Municipal Engineering: Used in the structural frameworks of large municipal facilities such as subway stations, underground utility corridors, and wastewater treatment plants, resisting complex loads such as soil pressure and water flow impact.
II. Mechanical Manufacturing
Equipment Frames: In heavy machinery (such as machine tools, presses, and cranes), they serve as frames or support structures, providing a stable load-bearing base. For example, crane booms and machine tool beds often use I-beams to enhance rigidity.
Transmission System Components: In some large machinery, they are used for transmission shaft supports, guide rails, etc., utilizing their cross-sectional characteristics to ensure stability during transmission.
III. Transportation
Vehicle Manufacturing: Used in the frame cross beams of large trucks and container trucks to balance vehicle weight and cargo load, improving structural stability during vehicle operation.
Railways and Tracks: Used in auxiliary support structures of railway tracks (such as track cross beams and platform load-bearing frames), which need to withstand train vibrations and personnel loads. The fatigue resistance of I-beams makes them suitable for this application.
IV. Steel Structures and Temporary Facilities
Steel Structural Components: As components of truss and reticulated structures, combined with other steel materials (such as angle steel and channel steel), they are used to build roofs or skeletons of large-span buildings such as stadiums and exhibition centers.
Temporary Supports: In construction, they are used as cross beams for scaffolding and formwork support, or as load-bearing structures for temporary bridges, allowing for quick assembly and reliable load-bearing capacity.
V. Other Special Scenarios
Mining and Metallurgy: Support structures for mine tunnels and load-bearing frames for metallurgical equipment, which need to withstand heavy loads and harsh environments. The high strength of I-beams meets these requirements.
Energy Engineering: Auxiliary load-bearing structures for oil drilling platforms and tower support components for wind turbines, which require a balance of strength and lightweight design. I-beams are a common choice.
Summary
The core application of hot-rolled I-beams lies in their **"high load-bearing efficiency"** characteristic—by optimizing the cross-sectional shape, they maximize bending and shear resistance while reducing self-weight. Therefore, they are widely used in structural scenarios that need to withstand lateral loads. Different specifications (such as light, medium, and heavy) of I-beams can be flexibly selected according to load size, span length, and other requirements, making them an indispensable steel product in modern engineering construction.

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