LATTICEWORK Russian patent published in 1995 - IPC

FIELD: construction. SUBSTANCE: latticework upper chord is made of two rolled sections secured between which are members of triangle lattice of single angle pieces and lower chord. In lower chord angle pieces of adjacent braces are connected to each other by means of flanges located in mutually crossing planes and two other flanges are located in parallel planes. Lower chord is located between two parallel flanges of adjacent braces. EFFECT: higher efficiency. 4 dwg