Haijun Lu , Ning Zhang , Jiasuo Pan , Yu Zhang , Denghui Dai
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引用次数: 0
Abstract
To investigate the dynamic interaction between irregular topography and the nearby structure, a rigorous analytical solution is derived for an asymmetric V-shaped canyon and a simplified structure under SH waves. The structure is represented by an idealized single-degree-of-freedom (SDOF) oscillator. The analytical model is validated by degrading into either a single SDOF oscillator model or an asymmetric V-shaped canyon model. Based on the proposed solution, the dynamic interaction between the V-shaped canyon and the nearby SDOF oscillator is analyzed in time domain. The results indicate that the canyon asymmetry can significantly influence the seismic response of the structure due to its “shielding effect” or “focusing effect” on seismic waves. In addition, the nearby structure either amplifies or attenuates the seismic responses at the canyon's shoulders and bottom.
期刊介绍：
The journal aims to encourage and enhance the role of mechanics and other disciplines as they relate to earthquake engineering by providing opportunities for the publication of the work of applied mathematicians, engineers and other applied scientists involved in solving problems closely related to the field of earthquake engineering and geotechnical earthquake engineering.
Emphasis is placed on new concepts and techniques, but case histories will also be published if they enhance the presentation and understanding of new technical concepts.
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