Pratt truss[′prat ‚trəs]
A truss having both vertical and diagonal members between the upper and lower chords, with the diagonals sloped toward the center.
A statically determinate truss, consisting of straight top and bottom chords, regularly spaced vertical compression members, and diagonal tension members; used for medium to long spans in buildings and for small bridges. See also: Truss
A truss having parallel chords, vertical members in compression, and diagonal members (which slant toward the center) in tension.