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超大跨度空间X撑结构屈曲强度特性研究
STUDY ON BUCKLING STRENGTH CHARACTERISTICS OF THE SUPER-SPAN SPACE X-BRACE STRUCTURE
投稿时间:2023-11-10  修订日期:2023-11-10
DOI:
中文关键词:  面外支撑  X撑结构  屈曲长度系数
英文关键词:Out-of-plane support  X-brace structure  Buckling length coefficient.
基金项目:基金(000000,0000000);基金(00000000)资助项目.
作者单位邮编
付殿福 中海油研究总院 100027
陈景杰 大连理工大学 
张梦竹 中海油研究总院 
黄一* 大连理工大学 116024
张伟为 中国科学院力学研究所 
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中文摘要:
      为了深入研究深水导管架平台超大跨度空间X撑结构的承载机理,合理地指导工程设计,本文在已有理论模型的基础上,研究了空间X撑结构(有面外支撑X撑结构)在典型的载荷模式、刚度特性、端点约束以及长度因子(交点位置)等参数下屈曲长度系数的变化规律,结合实际工程深水导管架结构,辅助有限元计算对超大跨度有面外支撑X撑结构进行了屈曲强度分析,最后得到了可为工程设计提供有效技术支撑的多个结论。
英文摘要:
      In order to deeply study the load-bearing mechanism of super-span space X-braced structures on deep-water jacket platforms and reasonably guide engineering design, based on the existing theoretical models, this paper studies the transformation law of the buckling length coefficient of space X-braced structures (X-braced structures with out-of-plane supports) under typical load patterns, stiffness characteristic, endpoint constraints, and length factor (intersection position). Combined with the actual deep-water jacket structure, the buckling strength of the super-span space X-braced structure with out-plane support is analyzed by the finite element method, and several conclusions are obtained which would provide effective technical support for engineering design.
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