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首页> 外文会议>International Conference on Port and Ocean Engineering under Arctic Conditions(POAC'05) vol.1; 20050626-3002; Potsdam,NY(US) >PERFORMANCE BASED RELIABILITY ANALYSIS OF OFFSHORE STRUCTURES SUBJECTED TO ICE LOAD
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PERFORMANCE BASED RELIABILITY ANALYSIS OF OFFSHORE STRUCTURES SUBJECTED TO ICE LOAD

机译：冰荷载下海上结构基于性能的可靠性分析

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摘要

The present paper evaluates the reliability of the offshore platform structures subjected to ice load, considering the uncertainties of diameter and thickness of jacket legs, modulus of elasticity of the steel, yield strength of the steel and ice force. The performance requirements of structural safety, equipment serviceability and human comfort are considered, which are evaluated by the maximum displacement of the deck, the maximum nominal and stable stress of the components under the extreme static ice load, and the acceleration of the deck under the dynamic ice load. The optimization algorithms are used to calculate the reliability of the offshore platforms. The reliability of several performance requirements of JZ20-2 MUQ platform in Bohai Bay are calculated, and the results show that this platform has relatively high capacity to resist failure, ensure equipment serviceability and even human comfort.
机译：考虑到套管腿的直径和厚度，钢的弹性模量，钢的屈服强度和冰力的不确定性，本文评估了承受冰荷载的海上平台结构的可靠性。考虑了结构安全性，设备可维护性和人类舒适度的性能要求，这些要求通过甲板的最大位移，极端静冰载荷下组件的最大标称和稳定应力以及甲板在加速度下的加速度来评估。动态冰负荷。优化算法用于计算海上平台的可靠性。计算了渤海湾JZ20-2 MUQ平台几个性能要求的可靠性，结果表明该平台具有较高的抗故障能力，确保设备的维修性甚至人的舒适性。

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