Abstract：The design response spectrum is an important basis for seismic design and is presented by the characteristic parameters of the design spectrum. Utilizing differential evolution to calibrate the design response spectrum, characteristic parameters, such as the corner period, characteristic period, the amplitude of the flat portion and attenuation index, can be given. However, the standard differential evolution may lead to prematurity or stagnation of the optimization results, causing unstable calibration results in the calibration of the design response spectrum. To achieve the optimization of calibration results of the design spectrum, 60 seismic acceleration response spectra with different types from the PEER database are selected, and the stability and applicability of various improved differential evolution algorithms are compared to provide high-quality method for the calibration of design response spectra. By comparing and analyzing the characteristic parameters and evaluation index, the accuracy and stability of the methods are demonstrated. The analysis results show that the GLDE algorithm can effectively avoid the unstable phenomenon of the calibration results in the engineering problem of calibrating the design response spectrum, and obtain more accurate characteristic parameters than other methods. Therefore, GLDE algorithm is recommended to calibrate the design response spectrum and study the characteristic parameters of the designed spectrum.
谭景阳 胡进军. 基于改进差分进化算法的设计反应谱高稳定性标定方法研究[J]. 土木工程学报, 2022, 55(5): 16-25, 66.
Tan Jingyang Hu Jinjun. Study on high stability calibration method of design response spectrum based on improved differential evolution algorithm. 土木工程学报, 2022, 55(5): 16-25, 66.
