ISO-BEAM AND PROCESS FOR ITS MANUFACTURE FROM NESTED HOLLOW ASSEMBLIES

摘要

P2711 A process for manufacturing a beam includes simultaneously modulating the size of the cross-section of the beam in a plurality of transverse directions in order to adapt various portions of the beam to both shear and flexional forces to which the beam is subjected. The process includes forming the beam by successively nesting a plurality of hollow, different width assemblies. Each assembly is formed by joining framework portions of the beam to side walls so as to form the hollow assemblies which are successively nestable within the next larger assembly. The beam comprises a plurality of hollow assemblies, each of which includes at least two boards and side walls connecting the boards. Each portion of the crosssection of the beam has hollow assemblies nested within one another.