One of the main advantages of hollow sections is their excellent strength-to-weight ratio. Due to their hollow design, these sections can provide the same or even higher strength as solid sections while being much lighter. This feature is particularly beneficial in large construction projects where reducing the overall weight of the structure is critical. The lighter weight not only makes it easier to transport and handle, but it also reduces the load on the foundation, potentially saving costs in foundation design and construction.
Another key advantage is the excellent torsional resistance of hollow sections. Their closed shape offers excellent resistance to torsional forces, making them ideal for use in structures subject to torsional loads. This feature is particularly valuable in applications such as bridge construction, where torsional stability is essential to ensure the safety and longevity of the structure.
Hollow sections also excel in buckling resistance. The hollow design disperses the material away from the neutral axis, increasing the moment of inertia of the section. This improves buckling resistance under compressive loads, allowing for longer unsupported spans and potentially reducing the number of supporting elements required in the structure.
In addition, these hollow profiles offer excellent fire resistance. The closed shape of the profiles can be filled with concrete or other fire-resistant materials, which greatly enhances the structure's ability to withstand high temperatures during a fire. This feature is particularly valuable in buildings where fire safety is critical.
Cold Formed A500 Hollow Section pipe
