PBNC 2016: Proceedings of The 20th Pacific Basin Nuclear Conference pp 691-703 | Cite as
Base-Isolation Technology Investigation for SMR Nuclear Island Building
Abstract
The application of Lead-Rubber Bearing base-isolation technology was studied in this paper, including base-isolation method scheme, selection of seismic isolation devices, determination of isolation structure models, etc. Taking one SMR nuclear safety-related building for example, the influence on isolation effectiveness of buildings from various spaces and various hysteretic models for the isolation layer were investigated based on the dynamic analysis of isolation structures. The study shows that: (1) the application of isolation measures can significantly increase the structure’s natural vibration period, reduce the dynamic response of the superstructure, and amplify the structure’s horizontal displacement, but the story displacements are small; (2) the bilinear model for isolation bearing has a more actual isolation effectiveness, it should be pay more attention in design.
Keywords
SMR LRB Isolation structures Equivalent linear model Bilinear modelReferences
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