RESIDUAL-DEFORMATION REFORMABLE BUILDING AFTER DISASTER STRIKING

摘要

PURPOSE: To separate a brace and a frame after disaster striking, and to restore the frame to the existing state by fractionizing the cross section of a column material constituting the frame and reducing stiffness without damaging axial bearing force. ;CONSTITUTION: In a truss frame, in which braces 1 are arranged into a flame 2 composed of the column 3 and beam 4 of a steel frame, the column 3 constituting the frame 2 is formed by the aggregate of divided bodies 3a, and the cross section of the column 3 is fractionized so as to hold the sectional area while using a column cross section according to a normal design as a reference. Consequently, the stiffness of the column 3 is reduced, and elasticity is sustained until the truss frame is deformed largely. Even when a building is moved horizontally by an earthquake, etc., the frame 2 is kept within the range of elasticity. The braces and the frame are separated after disaster striking, thus restoring the frame 2 to the existing state.;COPYRIGHT: (C)1993,JPO&Japio