港口结构抗震设计方法的发展（2）

以我国、美国和日本的港口码头设计规范、手册为基础,对我国、美国和日本港口码头抗震设计的方法进行分析,同时介绍了国际航运协会标准《港口结构抗震设计指南》的有关规定。该系列论文共分6部分,此文为第2部分。分析和比较了我国规范、美国指南、日本规范和《港口结构抗震设计指南》中港口水工建筑物的抗震设防原则、设防目标和设防水准、建筑物的设防类别。结果表明:国外标准基本都采用多设防标准的抗震设计方法,根据港口水工建筑物的重要性和性能要求划分了不同的抗震等级。

Development of seismic design of port and harbor structures: part 2

A comparative study was made on seismic design of port and harbour structures based on Chinese code, US guidelines and Japanese standards as well as guideline of International navigation association. This is the second of the series papers. The philosophy, performance objectives, hazard levels of seismic design and classification of marine structures specified in these codes were analyzed. It is shown that all the codes except Chinese code are multi-performance objectives and multi-hazard levels for seismic design, and different classifications are made per the consequence of collapse of structure under earthquake.