| Issue |
E3S Web Conf.
Volume 198, 2020
2020 10th Chinese Geosynthetics Conference & International Symposium on Civil Engineering and Geosynthetics (ISCEG 2020)
|
|
|---|---|---|
| Article Number | 04004 | |
| Number of page(s) | 7 | |
| Section | Urban Planning Engineering and Design Application | |
| DOI | https://doi.org/10.1051/e3sconf/202019804004 | |
| Published online | 26 October 2020 | |
A Normalized Hysteretic Energy Spectrum for Energy-Based Seismic Design
1 College of Urban Construction and Transportation, Hefei University, Hefei 230601, China
2 College of Advanced Manufacturing Engineering, Hefei University, Hefei 230601, China
* Corresponding author:hanjingling19@sina.com
To disclose the impacts of hysteretic energy (HE) demand on energy-based seismic design, this paper introduces the dimensionless parameter βEH to express the cumulative HE indirectly and establishes the βEH spectrum for energy-based seismic design. After analyzing numerous seismic responses of a single degree-of-freedom (SDOF) system, the author set up a simplified βEH spectral formula based on the genetic algorithm. Then, 750 ground motion records were selected according to Chinese site classification, and used to examine the effects of soil type and damping ratio on the βEH spectra. The results show that the soil type, site group and damping ratio have significant effects on the βEH spectra; the ductility ratio has an impact on the spectral value but not the spectral shape.
© The Authors, published by EDP Sciences 2020
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