Deterministic and probabilistic floor response spectra |
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| Authors: | Aleksandar Paskalov Stefanie Reese |
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| Institution: | a Institute of Earthquake Engineering and Engineering Seismology, University St. Cyril and Methodius, Salvador Aljende 73, Skopje 1000, Macedonia;b Department of Numerical Mechanics/Simulation Technique, Faculty of Civil Engineering, Ruhr University Bochum, IA 01/127, Bochum D-44780, Germany |
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| Abstract: | The paper presents a comparative study for computing floor response spectra (FRS) for complex structures. For the purpose of validation and evaluation of the methods for practical application, a systematic comparison of two concepts, classical deterministic and probabilistic, was carried out as an example of a nuclear power plants structure. The deterministic method utilizes time history analyses compatible with the prescribed design response spectrum. The probabilistic method uses an analysis of random vibrations for defining the probabilistic FRS influenced by random seismic soil movement. The seismic input is a power spectral density function (PSDF) compatible with the design response spectrum. The probabilistic approach based on PSDF provides satisfying FRS with far less effort and time consumption needed for calculation. |
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| Keywords: | Seismic analysis Floor response spectra Deterministic approach Power spectral density function-based approach Complex structure |
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