通过对高桩码头震害的分析,弄清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,介绍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,并就如何吸收国外高桩码头抗震的研究成果及修订抗震设计规范提出了建议.本文为系列论文第3部分,主要论述了斜桩和桩-上部结构连接的抗震性能.研究表明,斜桩的抗震性能存在较大争议,国外在桩-上部结构连接形式及隔震技术方面进行了大量理论和试验研究并在码头抗震设计中得到应用,我国在斜桩使用和桩-上部结构连接等方面还需要继续深入研究.%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 research on the open type wharf with standing piles,from the aspects of the seismic design methods,soilpile interaction,seismic performance of the batter piles and pile-deck connections,is presented,and the applications of the research findings from the seismic codes for the pile-supported wharves are summarized,and the deficiencies concerning the researches and the problems needed to be further studied are pointed out.Some suggestions to revise the domestic seismic design codes and specifications are made.This is the third part of the series papers which discuss the seismic performance of the batter piles and pile-superstrncture connections.The research results show that there is a great controversy in the seismic performance of the batter piles,and extensive theoretical and experimental studies on the pile-superstructure connections as well as the isolation technique have been carried out and the related findings applied to the seismic design of the wharves.And subsequent researches should be still conducted on the usage of the batter piles and pile-superstructure connections.
展开▼
