Displacement-based risk-targeted design of base-isolated structures
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O'Reilly, Gerard, Sakurai, Satoshi, Suzuki, Yoshitaka, Calvi, Gian Michele, Nakashima, Masayoshi, Displacement-based risk-targeted design of base-isolated structures, 14th International Conference on Applications of Statistics and Probability in Civil Engineering (ICASP14), Dublin, Ireland, 2023.Download Item:
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This paper discusses a risk-targeted displacement-based method to design and evaluate friction pendulum bearing (FPB) devices in base isolation systems. It is based on a simplified approach to quantify the mean annual frequency of exceeding a given device displacement threshold using basic FPB dimensions and properties. A case study example is discussed to illustrate its accuracy against more extensive assessments. Through such a method, it is envisaged that structural engineers can now quickly assess the actual failure rates of different FPB device combinations used in practice to obtain a more uniform level of safety or reliability. The proposed approach is also arguably simpler, more direct and more accurate than currently available code-based approaches in many regions.
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Author: ICASP14; O'Reilly, Gerard; Sakurai, Satoshi; Suzuki, Yoshitaka; Calvi, Gian Michele; Nakashima, Masayoshi
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