ABSTRACT
It is known that structural hollow sections are always an excellent choice for trusses. When designing lattice girders, the option of circular hollow sections (CHS) provides a good structural behaviour and good aesthetics. However, joints details require accurate profiling of the ends of CHS bracemembers and therefore higher fabrication costs. Thus, rectangular hollow sections (RHS) are more cost effective, combining the good structural behaviour with joint details that only require flat cuts at the ends of brace members before welding their perimeters to the chord members.
