Base isolation, also known as seismic or base isolation system, is a collection of structural elements which should substantially decouple a superstructure from its substructure resting on a shaking ground thus protecting a building or non-building structure's integrity . Base isolation is the most powerful tool of the earthquake engineering pertaining to the passive structural vibration control technologies.

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  • Base isolation, also known as seismic or base isolation system, is a collection of structural elements which should substantially decouple a superstructure from its substructure resting on a shaking ground thus protecting a building or non-building structure's integrity . Base isolation is the most powerful tool of the earthquake engineering pertaining to the passive structural vibration control technologies. It is meant to enable a building or non-building structure to survive a potentially devastating seismic impact through a proper initial design or subsequent modifications. In some cases, application of base isolation can raise both a structure's seismic performance and its seismic sustainability considerably. Base isolation system consists of isolation units with or without isolation components, where: 1. Isolation units are the basic elements of base isolation system which are intended to provide the mentioned decoupling effect to a building or non-building structure. 2. Isolation components are the connections between isolation units and their parts having no decoupling effect of their own. By their response to an earthquake impact, all isolation units may be divided into two basic categories: shear units and sliding units . The first evidence of architects using the principle of base isolation for earthquake protection was discovered in Pasargadae, a city in ancient Persia, now Iran: it goes back to VI century BC. This technology can be used both for new structural design and seismic retrofit. In process of seismic retrofit, some of the most prominent U.S. monuments like, e.g. , Pasadena City Hall, San Francisco City Hall, Salt Lake City and County Building or LA City Hall were mounted on Base Isolation Systems. It required creating rigidity diaphragms and moats around the buildings, as well as making provisions against overturning and P-delta effect.
  • El Aislamiento sísmico es una colección de elementos estructurales para desemparejar una superestructura del edificio de su tierra que sacudare y, así, para proteger la integridad del edificio. El Aislamiento sísmico es una herramienta de gran alcance de la Ingeniería Antisísmica.
  • Nel campo dell'ingegneria civile e dell'architettura con il termine isolatori sismici si intendono tutti quei dispositivi che servono a isolare la struttura portante degli edifici dagli effetti di un terremoto.
  • Понятие сейсмостойкость с давних пор ассоциировалось с достаточно прочной постройкой, способной выстоять рассчётное землетрясение хотя бы без полного разрушения и с минимальными человеческими жертвами. Однако не следует навязывать зданию непосильную задачу – сопротивляться сокрушительному землетрясению. Лучше дать этому зданию, с помощью сейсмической изоляции (что означает "изоляция фундамента"), возможность как бы парить над трясущейся землёй. Стоп-кадр испытания: справа – модель на сейсмопротекторах, слева – на сейсмоплатформеПровозгласить такую цель, конечно, значительно проще, чем достичь её практически. Однако, сейсмические изоляторы, показанные под моделью здания справа, могут справиться с поставленной задачей. Сейсмоизоляторы, если применяются правильно, считаются наиболее эффективной технологией в сейсмостойком строительстве. Первые свидетельства применения сейсмической изоляции для снижения сейсмической нагрузки и увеличения сейсмостойкости построек и памятников от землетрясений обнаружены в древней Персии и относятся к VI веку до н. э.
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  • Base isolation, also known as seismic or base isolation system, is a collection of structural elements which should substantially decouple a superstructure from its substructure resting on a shaking ground thus protecting a building or non-building structure's integrity . Base isolation is the most powerful tool of the earthquake engineering pertaining to the passive structural vibration control technologies.
  • El Aislamiento sísmico es una colección de elementos estructurales para desemparejar una superestructura del edificio de su tierra que sacudare y, así, para proteger la integridad del edificio. El Aislamiento sísmico es una herramienta de gran alcance de la Ingeniería Antisísmica.
  • Nel campo dell'ingegneria civile e dell'architettura con il termine isolatori sismici si intendono tutti quei dispositivi che servono a isolare la struttura portante degli edifici dagli effetti di un terremoto.
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  • Base isolation
  • Aislamiento sísmico
  • Isolatori sismici
  • Сейсмическая изоляция
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