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Structural Engineering and Mechanics Volume 9, Number 2, February 2000 , pages 141-152 DOI: https://doi.org/10.12989/sem.2000.9.2.141 |
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A practical coherency model for spatially varying ground motions |
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Yang QS, Chen YJ
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| Abstract | ||
| Based on the discussion about some empirical coherency models resulted from earthquake-induced ground motion recordings at the SMART-1 array in Taiwan, and a heuristic model of the coherency function from elementary notions of stationary random process theory and a few simplifying assumptions regarding the propagation of seismic waves, a practical coherency model for spatially varying ground motions, which can be applied in aseismic analysis and design, is proposed, and the regressive coefficients are obtained using least-square fitting technique from the above recordings. | ||
| Key Words | ||
| coherency function, practical model, strong ground motion, spatial variability | ||
| Address | ||
| Yang QS, No Jiaotong Univ, Dept Civil Engn, Beijing 100044, Peoples R China No Jiaotong Univ, Dept Civil Engn, Beijing 100044, Peoples R China | ||