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SEISMIC PERFORMANCE OF PILE-SUPPORTED WHARVES

机译：桩支撑码头的抗震性能

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This paper discusses the results of an experimental program carried outat the EnglekirkStructural Engineering Center of the University of California in San Diego (UCSD) to provide data for the performance-based seismic design of vertical pile-supported marginal wharves. Strong earthquake-induced inertial lateral loading may cause significant damage to the wharfin two critical locations (ⅰ) at the pile-cap connection, and (ⅱ) at the location of the pile maximum bending moment below the ground. Two pile-capassemblies, representative ofthe two most critical piles of a marginal wharf and the surrounding quarry-run fill, were built at full-scale and tested under quasi-static reversed cyclic loading to large lateral displacements. The piles in the test units were precast pretensioned and were connected to the deck through grouted dowels and were also embedded in quarry-run fill, as is often the case in these marine structures. The test units displayed avery stable hysteretic response. This paper describes the test specimens, their hysteretic response together with the predicted response, the progression of damage in the test units, and the distribution of the applied lateral force among the two piles. The paper also highlights the most relevant implications for performance-based design of marginal wharves.
机译：本文讨论了在加利福尼亚大学圣地亚哥分校的Englekirk结构工程中心（UCSD）上进行的实验程序的结果，该实验程序为基于竖向桩支撑的边缘码头的基于性能的抗震设计提供了数据。强烈的地震感应惯性侧向载荷可能会对码头的两个关键位置（ⅰ）和桩下最大桩弯矩位置（，）的两个关键位置造成严重损坏。完整地建造了两个桩-檐口组合，分别代表边缘码头的两个最关键桩和周围的采石场填土，并在准静态反向循环荷载作用下对大横向位移进行了测试。测试单元中的桩已预先预制，并通过灌浆的销钉连接到甲板，并且还嵌入到采石场填充物中，这在这些海洋结构中经常是这种情况。测试单元显示出平均稳定的磁滞响应。本文介绍了试件，其滞后响应以及预测的响应，测试单元中的破坏进程以及两个桩之间施加的侧向力的分布。本文还重点介绍了基于性能的边际码头设计最相关的含义。

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