In order the slit leaf spring and the earthquake-proof standards and the earthquake-proof reinforcement structure null band-like board

摘要

PROBLEM TO BE SOLVED: To provide a durable slit plate spring for reducing earthquake vibration to actualize easy earthquake-proof reinforcement of a new or existing building, particularly, a low-rise building having one or two floors, and to provide an earthquake-proof reinforcing system using the same.;SOLUTION: The upper side face of a band plate is curved downward to form round faces at both ends, its front end is curved downward in the opposite direction to the round faces at both ends of the upper side face so that the round faces are continuously formed in a S-shape or an inverted S-shape, and then the front end extends in a horizontal direction to form a lower side face. This one-pitch procedure is repeated to form a plate spring in a bending structure. The slit plate spring has equal- or unequal-width slits formed parallel in the longitudinal direction in a range from starting points on the round faces of the lower side face through the upper side face to final points on the round faces in the opposite direction. The building earthquake-proof reinforcing system uses the same.;COPYRIGHT: (C)2006,JPO&NCIPI