PURPOSE: To improve the efficiency of work by putting upper beam members and lower beam members having the same rectangular cross-section, together at intervals between the members, and by laminating a necessary quantity of the jointing members of the same cross-section partially between the upper beam members and the lower beam members.
CONSTITUTION: The lengths of ions members having one kind of rectangular cross-section are cut off, and upper beam members 3, lower beam members 4, and jointing members 5 are formed, and the upper beam members 3 and the lower beam members 4 are put together, vertically at intervals between them. Then, according to the stress of respective sections, a necessary quantity of the jointing members 5 are partially laminated between the upper beam members 3 and the lower beam members 4, via adhesive, and a floor framework frame member 8 is formed. As a result, a cost can be extremely reduced.
ARAI YUJIRO
MISAKI EIJI