国内外高桩码头抗震性能和设计方法研究进展Ⅱ:桩-土相互作用

通过对高桩码头震害的分析，分析了高桩码头破坏的主要原因。在此基础上，从高桩码头抗震设计方法、桩-土相互作用、斜桩和桩-上部结构连接的抗震性能等方面，论述了国内外高桩码头抗震研究的进展，总结了这些研究成果在高桩码头抗震设计规范中的应用，指出了高桩码头抗震性能研究的不足及需要深入研究的问题。对国内如何吸收国外高桩码头抗震的研究成果及抗震设计规范的修订方向提出了建议。该系列论文分为3部分，此为第2部分，主要介绍高桩码头抗震计算中桩-土相互作用的评估方法以及高桩码头的动力分析方法和研究成果。研究表明，评估桩-土相互作用的方法已较为完善，而对高桩码头抗倒塌性能以及近断层地震动下码头反应特性的研究还有待深入。

Advances in research on seismic performance and design methods for pile-supported wharves Part II: Pile-soil interaction

The main reasons resulting in the poor seismic performance of the open type wharf with standing piles are clarified by examining extensive documented case studies of the damaged pile-supported wharves. The state of the art of the researches on the open type wharf with standing piles, from the aspects of the seismic design methods, soil-pile interaction, seismic performance of the batter piles and pile-deck connections, is presented, and the applications of the research outcomes in the seismic codes for the pile-supported wharves are summarized, and the deficiencies about the studies and the problems needed to be further studied are pointed out in this paper. Some suggestions to revise the domestic seismic design standards and codes are also made. This is the second part of the series papers, which mainly introduces the estimation methods in calculating the pile-soil interaction for the pile-supported wharves and the methods and research results of dynamic analysis for the open type wharf with standing piles. The research results show that the estimation methods for the pile-soil interaction are good enough, however, more and more attention to the studies of the collapse resistance performance and response properties under the near-fault ground motions for the open type wharf with standing piles should be paid in the future.