What is another name for a steel lightweight truss?

A steel lightweight truss is commonly referred to as a bar joist. This term specifically denotes a type of truss system made of steel that utilizes a series of open-web configurations, which results in a lighter structure while still maintaining strength and load-bearing capabilities. Bar joists are widely used in commercial and industrial buildings due to their efficiency in spanning large distances without the need for intermediate supports, making them ideal for applications where unobstructed space is desired.

The design of bar joists typically incorporates steel angles and plates to form a web configuration, which not only reduces material weight but also allows for easier integration with other building systems. Their lightweight nature contributes to reduced overall construction costs and can minimize the load on foundation systems.