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首页> 外文会议>Offshore technology in civil engineering: hall of fame papers from the early years >SEISMIC BEHAVIOR OF TUBULAR STEEL OFFSHORE PLATFORMS
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SEISMIC BEHAVIOR OF TUBULAR STEEL OFFSHORE PLATFORMS

机译：钢管海上平台的抗震性能

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摘要

Experimental results are described on the inelastic behavior of two one-sixth scale models of an X-braced tubular steel offshore platform subjected to cyclic loads simulating the effects of severe earthquake ground motions. The dimensions of the 29-ft. (8.8 m) tall test specimens are based on a representative production facilities platform designed according to API wind and earthquake criteria applicable to Southern California. Two types of detailing are investigated: in one specimen the nominal tube diameter-to-wall thickness (D/t) ratio is 48, while it is 33 in the other. Hysteretic response for individual bracing members as well as for the frames as a whole are presented and interpreted. The effect of D/t ratio on deterioration of the strength, stiffness and energy dissipation capacity of the specimens under inelastic cycling is examined. Based on the results presented, implications for current design and analysis practices are briefly discussed and recommendations for future analytical and experimental research are offered.
机译：实验结果描述了X形支撑钢管海上平台的两个六分之一比例模型的非弹性行为，该模型承受了模拟剧烈地震地面运动的循环载荷。 29英尺的尺寸。 （8.8 m）高的试样基于具有代表性的生产设施平台，该平台是根据适用于南加州的API风和地震标准设计的。研究了两种类型的细节：在一个样本中，标称管径与壁厚的比（D / t）为48，而在另一个样本中为33。呈现并解释了单个支撑构件以及整个框架的滞后响应。研究了D / t比对非弹性循环条件下试样强度，刚度和能量耗散能力下降的影响。根据给出的结果，简要讨论了对当前设计和分析实践的影响，并为将来的分析和实验研究提供了建议。

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