What is the top part of a truss called?

The top part of a truss is referred to as the top chord. This component plays a crucial role in the truss's structural integrity, providing support and stability to the overall framework. The top chord is designed to bear the compressive forces that occur when the truss is subjected to loads, such as the weight of roofing or flooring systems.

In contrast, the bottom chord serves a different function, mainly dealing with tensile forces. Gussets are structural elements that help connect different components of the truss, particularly the chords and webbing, which are the diagonal and vertical members that distribute loads throughout the structure. Understanding the roles of each part is essential for analyzing how a truss operates as a whole and for ensuring that designs can withstand expected loads safely. Thus, identifying the top chord is fundamental when discussing truss design and function.