BASE ISOLATION STRUCTURE FOR FLOOR

PROBLEM TO BE SOLVED: To provide a base isolation structure for a floor capable of keeping stability of the floor in a small earthquake and protecting equipment on the floor by surely activating a base isolation device at a required trigger load. SOLUTION: This base isolation structure is for a floo...

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Bibliographische Detailangaben
Hauptverfasser:	KAWADA MASAYOSHI, SAKAI YOSHIHITO, MINAMI TERUHISA, IZUMO YOJI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING BUILDING ENGINEERING ELEMENTS AND UNITS FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS FIXED CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING SHOCK-ABSORBERS SPRINGS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a base isolation structure for a floor capable of keeping stability of the floor in a small earthquake and protecting equipment on the floor by surely activating a base isolation device at a required trigger load. SOLUTION: This base isolation structure is for a floor 2 supported by a structure body 1 through the base isolation device 3. A connecting member 8 movably connecting the floor 2 and destructing from shear force to allow activation of the base isolation device 3 when an earthquake force of a required activation earthquake level acts on the floor 2 is installed between the floor 2 and the structure body 1. An actual activation earthquake level of the base isolation device 3 itself is smaller than an activation earthquake level required for the floor 2.