What is this truss called?

Queen Post Truss

A Queen Post Truss is a type of structural framework commonly used in roof designs, characterized by its vertical posts (queen posts) positioned between the top and bottom horizontal chords. The horizontal top chord and bottom chord are connected by these queen posts, providing additional support to the structure.

This design effectively distributes the weight and enhances stability, making it suitable for spans in buildings and bridges. Each queen post serves to decrease the span length, reinforcing the structure against bending forces. The simplicity of this truss design allows for ease of construction and adaptation to various architectural styles.

Its versatility and ability to accommodate different spans make it a popular choice in construction, particularly for smaller to medium-sized structures where a balance between functionality and aesthetics is desired.