...bottom chord, also materially increases the strains in the truss members, hence it increases the cost. A truss whose bottom chord has a rise of two or three feet, Fig. 74.— French Truss with Vertical Struts. Span, 80 ft. as in Fig. 69, presents a better appearance,...
A truss whose bottom chord has a rise of two or three feet, however, presents a better appearance. 