A study of calibrating seismic design response spectrum based on high-intensity ground motion records

Scientific Reports

卷:16

Article

Qian Liang^1,2  Bai Yunpeng³  Xie Quancai^1,2  Zhang Xiaonan^4,5  Li Jilong^1,2  Wang Yuhuan^1,2 

[1] Tianjin Earthquake Agency, 300201, Tianjin, China

[2] Key Laboratory of Building Collapse Mechanism and Disaster Prevention, China Earthquake Administration, 065200, Sanhe, China

[3] School of Earthquake Engineering and Building Safety, University of Emergency Management, 065200, Sanhe, China

[4] Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, Earthquake Administration, 150080, Harbin, Heilongjiang, China

[5] Key Laboratory of Earthquake Disaster Mitigation, Ministry of Emergency Management, 150080, Harbin, Heilongjiang, China

关键词: Calibration of the design response spectrum;    Chinese seismic intensity;    Adaptive guided differential evolution algorithm;    Spectral parameters;    Site conditions;   

DOI  :  10.1038/s41598-026-58966-1

 received in 2026-01-08, accepted in 2026-06-17,  发布年份 2026

来源: Springer

【 摘 要 】

The seismic design response spectrum is a vital parameter for determining the potential seismic load of the engineering structure. Differential evolution algorithm (DE) with a novel hybrid mutation operator is utilized to calibrate the spectral parameters in order to enhance iteration efficiency. This study calibrates the seismic design response spectrum for China based on the Chinese seismic intensity scale and compares the results with the Code for Seismic Design of Buildings (CSDB2010).The calibration spectra are based on strong ground motion records with destructive power exceeding the Chinese seismic intensity 7 and above. The characteristics of the calibration spectral parameters are analyzed and subsequently compared with the design spectra of the Code for Seismic Design of Buildings (CSDB2010). It is found that: Increasing the number of iterations can enhance the fitting goodness of DE between the calibration spectrum and the record response spectrum. The average site characteristic period (Tg) for rock and hard soil site conditions (Class I and II) is greater than the Tg specified in CSDB2010. The average Tg for intensity 10 + is greater than the average Tg for intensity 7, 8, and 9. Tg increases with the seismic intensity. The average spectra platform value (βmax) from this study gradually approaches the βmax in CSDB2010 as the intensity increases. The average attenuation index (γ) at different intensities of this study is greater than γ in CSDB2010.

【 授权许可】

CC BY   
© The Author(s) 2026

【 图 表 】

Figure 6. Impact of regorafenib on the engagement of trametinib with MEK1-Nluc.

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Figure 3. Common tabs and light path configuration for two-photon fluorescence correlation spectroscopy (2P-FCS) using Zen Black Software

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