摘要
本文采用动力相互作用因子法,对群桩在水平方向谐和激振力作用下的动力反应进行了分析,并与足尺原型桩的野外试验结果进行了比较。由群桩的振幅,刚度和阻尼的频率响应曲线,给出桩-土-桩相互作用对群桩动力特性的影响。边界层概念的引入及由试验确定自由桩长,使理论计算曲线与原型桩的实测结果符合一致。本文还对同一试验场地相同条件下的单桩进行了动力反应对比分析。
The dynamic response of pile group under horizontal harmonic excitation is analyzed using the approach of dynamic interaction factors, and comparedwith the experimental results on full-scale piles in the field. With thefrequency response curves for amplitude, stiffness and damping, the influ-ence of pile-soil-pile interaction on dynamic behaviour of pile group is ex-pressed. With the introduction of the concept of boundary zone and thedetermination of the free pile length, the theoretical curves agree with thedata measured on the full-scale piles. The dynamic response of single pilewith the same conditions in the same site is analyzed as well.
出处
《土木工程学报》
EI
CSCD
北大核心
1992年第5期24-33,共10页
China Civil Engineering Journal
