Research on Influencing Factors and Generalized Power of Synthetic Artificial Seismic Wave

2018 2nd International Workshop on Renewable Energy and Development

能源学;经济学

Jiang, Yanpei^1

School of Civil and Resources Engineering, University of Science and Technology, Bei Jing, China^1

关键词: Acceleration amplitude;    Artificial seismic wave;    Discrete energies;    Envelope functions;    Integral formulas;    Seismic accelerations;    Seismic Performance;    Trigonometric series;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/153/6/062031/pdf
DOI  :  10.1088/1755-1315/153/6/062031

来源: IOP

【 摘 要 】

Start your abstract here... In this paper, according to the trigonometric series method, the author adopts different envelope functions and the acceleration design spectrum in Seismic Code For Urban Bridge Design to simulate the seismic acceleration time history which meets the engineering accuracy requirements by modifying and iterating the initial wave. Spectral analysis is carried out to find out the the distribution law of the changing frequencies of the energy of seismic time history and to determine the main factors that affect the acceleration amplitude spectrum and energy spectrum density. The generalized power formula of seismic time history is derived from the discrete energy integral formula and the author studied the changing characteristics of generalized power of the seismic time history under different envelop functions. Examples are analyzed to illustrate that generalized power can measure the seismic performance of bridges.