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首页> 外文期刊>Journal of Performance of Constructed Facilities >Assessment of Seismic Performance of Two Pile-Deck Wharf Connections
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Assessment of Seismic Performance of Two Pile-Deck Wharf Connections

机译：两个桩-甲板码头连接处的抗震性能评估

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摘要

This paper examines the seismic response of two full-scale pile-to-deck connections of marginal wharves built in the 1980s at the Port of Los Angeles. The first test represented a precast pretensioned concrete pile-deck connection at Berth 145. This berth required extending the deck for a new crane rail and a new line of piles. The proposed wharf upgrade considered leaving the existing piles if their lateral displacement capacity exceeded the expected seismic demands. A representative connection was tested to assess the rotation capacity under reversed cyclic loading. The second test represented a typical steel pile-deck connection used in Berth 226. In this structure, the piles support a crane rail. A reversed cyclic loading test was also conducted to assess the connection deformation capacity. Both connections were able to carry the imposed axial load throughout, even when the flexural strength had degraded. The precast pile-deck connection maintained the flexural strength up to a rotation of 0.04 rad, and the steel pile-deck connection maintained its flexural strength up to a rotation of 0.015 rad.
机译：本文研究了1980年代在洛杉矶港建造的边际码头的两个完整的桩对甲板连接的地震反应。第一次测试是在145号泊位进行预制的预应力混凝土桩-甲板连接。该泊位要求扩展甲板，以安装新的起重机轨道和新的桩线。如果码头的侧向位移能力超出预期的地震要求，则建议的码头升级计划考虑保留现有的桩。测试了代表性连接，以评估反向循环载荷下的旋转能力。第二个测试代表了泊位226中使用的典型钢桩-甲板连接。在这种结构中，桩支撑着起重机的轨道。还进行了反向循环载荷试验以评估连接变形能力。即使抗弯强度降低，两个连接件也能够始终承受施加的轴向载荷。预制桩-甲板连接的抗弯强度最高可保持0.04 rad的旋转，而钢桩-甲板连接的抗弯强度最高可保持0.015 rad的旋转。

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