摘要
本文在平面应变条件下,给出层状半无限地基动力阻抗函数的简化计算模型。在分析中,假定基础下部只有一定范围内的土体有效地参与波的传播与能量传递,同时略去水平与摇摆振动中的耦合影响。通过数值计算,研究了地基不均匀性以及土料特性的变化对动力阻抗函数的影响。
A simplified model is proposed for calculating dynamic impedance functions of strip-footing resting onmultilayered halfspace under plan strain conditions.The basic assumption introduced is that only a certainportion of the surrounding subsoils effectively participated in wave propagation and energy transmission.The coupling effects between the horizontal translational and rocking vibrations are neglected.Numericalexampled are given and the effects of foundation inhomogeneity as well as soil properties on the dynamicimpedance of the footing is examined.
出处
《振动工程学报》
EI
CSCD
1993年第3期263-268,共6页
Journal of Vibration Engineering
基金
国家自然科学基金青年基金
国家教委博士点基金
关键词
土动力学
振动
动力阻抗
非均质
地基
soil dynamics
vibration
dynamic impedance
inhomogeneous halfspace
