What does HSS stand for in structural engineering?

HSS stands for "Hollow Structural Section" in structural engineering. This term refers to a category of structural steel shapes that have a hollow cross-section, such as square, rectangular, or circular. These sections are often used in construction due to their efficient strength-to-weight ratio and versatility. They can be easily welded or connected to other elements, making them popular in various building frameworks, bridges, and other structural applications. The use of HSS can also help reduce the amount of material required, leading to more sustainable construction practices.

The other options do not accurately represent what HSS encompasses within the field of structural engineering. Heavy Structural Steel could refer to a broader category of steel used in construction but does not specifically pertain to the hollow section characteristic. Height Support System and Hollow Support Steel are not standard terms used in the industry and could lead to confusion.