基于上下部共同作用的群桩动力优化设计

Dynamic optimizing design of pile-groups considering interaction on upper and lower parts

摘要: 基于复形调优的基本理论,利用群桩动力阻抗的频域相关性,以体系周期为基本目标函数,着重讨论并估计了群桩抽桩布置于体系动力反应的影响。通过数值计算分析,认为在带桩结构工程应用该法进行动力分析是可行的,同时也为桩基承载结构提供了一种新的设计思路。

Abstract: Based on the optimizing theory of plural modality method and utilizing the frequencydependent characteristic of dynamic impedance of pilegroups, the fundamental period of system is considered as a target function. The effect of the taking outcollocation in pilegroup on dynamic response of system is emphasized and evaluated by numerical computation, and a new design idea is presented for pilesupported structures.