Understanding Parallel Chord Truss in Construction

What is the purpose of a parallel chord truss in construction?

a. To support pitched roofs
b. To support flat roofs and floor assemblies
c. To create arced structures

Answer:

b. To support flat roofs and floor assemblies

The parallel chord truss is used to support flat roofs and floor assemblies, featuring parallel top and bottom chords ideal for constructing flat surfaces.

Explanation:

The parallel chord truss, constructed of wood or metal, is generally used to support flat roofs and floor assembly. A truss is a framework, typically consisting of rafters, posts, and struts, supporting a roof, bridge, or other structure. The unique feature of the parallel chord truss is that its top and bottom chords run parallel to each other, which makes it ideal for supporting structures that require flat surfaces, such as roofs and floors.