VIBRATION DAMPER FOR BUILDING

• Main Authors: TAKATANI TOMOHIKO, TANAKA MASARU, NAKAZAWA AKIO, NANBA SHINSUKE, ARAI TATSUICHI
• Format: Patent
• Language: English
• Published: 31.03.1998
• Edition: 6
• Subjects: BUILDING; BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; FENCING; FIXED CONSTRUCTIONS; MASTS; SWIMMING OR SPLASH BATHS OR POOLS; TENTS OR CANOPIES, IN GENERAL

PROBLEM TO BE SOLVED: To manufacture a vibration damper for a building easily at low cost, to eliminate the need for maintenance including repair after an earthquake and to reduce the quakes and vibrations of the building, mainly a frame at the time of the earthquake and the time of a strong wind. SOLUTION: A pair of brackets 5, 6 are fixed downwards onto the underside of a beam C on the upper side in response to the length of laminated springs 2, and spring eyes at both ends of the master plates of the laminated springs 2 are hung from the lower ends of each bracket respectively through shackles or links. Gusset plates 7 are fixed downwards onto the beam C on the upper side while being adjoined to the brackets 6 far from columns B, and the apices of approximately triangular amplifying link plates 4 are supported pivotally and connected to the hinge pads 2c of the laminated springs 2 while one corner sections of the short sides of the amplifying link plates 4 are supported rotatably and coupled at the lower end sections of the gusset plates 7. Other brackets 8 are fastened upwards at places adjacent to the columns B of a beam C on the lower side, and both end sections of braces 3 are supported pivotally and joined at the upper end sections of the brackets 8 and the other comer sections of the short sides of the amplifying link plates 4 respectively.