| 摘要 |
PROBLEM TO BE SOLVED: To facilitate assembling, shorten a construction period, and increase economical efficiency by firmly joining the other member to an intermediate part of a long size member. SOLUTION: In a chord member 5, two strips of flanges 7 by performing extrusion molding integrally with the chord member 5 having a prescribed interval are formed in an intermediate joining place to which a lattice member 18 is joined, and in the lattice member 18, flat parts 21 having a coin angle and a bent angleβare formed on both ends, and the flanges 7 of the chord member 5 and the flat parts 21 of the lattice member 18 are joined together. Recesses-projections 9 and 22 are respectively formed in the flanges 7 of the chord member 5 and the flat parts 21 of the lattice member 18, and the flanges 7 of the chord member 5 may be formed in a pluraility in the prescribed direction.
|
