【摘要】 提出了地基土-偏心结构相互作用体系分析模型,建立了5自由度相互作用平扭耦联运动方程。根据相互作用体系的特点,假设上部结构具有正交阻尼,单独对其采用振型分解法进行解耦,从而减少了自由度数,获得了频域内解析过程,分析了地基土性质对偏心结构平扭耦联状况带来的影响,为分析地基土-偏心结构平扭耦联效应提供了一种有效的计算方法。更多还原

【Abstract】 In order to study the effect of soil-structure interaction on the coupled lateral and torsional response of asymmetric buildings,this paper proposed the simplified soil-asymmetric structure interaction model,established 5-degree-of-freedom lateral-torsional coupling vibration equations of soil-asymmetric structure system.Supposing that the damp of superstructure is orthogonal,this paper used the modal analysis method to the superstructure individually.So the number of unknowns is reduced,which make it possible to obtain the analytical result in frequency domain.The effect of foundation on lateral-torsional coupling of asymmetric structure is learned.It provides an effective method to study torsional coupling of asymmetric structure with foundation interaction.更多还原