华侨大学学报（自然科学版）Issue(1)：80-85,6.DOI:10.11830/ISSN.1000-5013.2015.01.0080
刚性桥面板天然气管道悬索跨越结构力学性能
Research on Mechanical Property of Cable-Suspended Structure of Liquefied Natural Gas Pipelines with Rigid Deck Slab
摘要
Abstract
The finite element model of engineering prototype of cable-suspended structure of liquefied natural gas pipe-lines with rigid deck slab is established,and the static,modal and pigging response are carried out.The whole displace-ment curve of cable-suspended structure under dead load,meets the design accuracy by comparison with the design data;The first three rank modes of cable-suspended structure of liquefied natural gas pipelines are in-plane vibration of bridge, the vibration of main cables appears at the fourth rank,the out-plane vibration of bridge deck appears at the sixth rank. Mid-span vertical displacement-position of pigging ball curve of pigging ball taking 120 s and 110 s to cross suspended structure develops completely,appearing two wave crests and one trough,and the shape of whole curve is similar to the shape of static analysis.With the time of pigging ball through bridge decreases,the development of curve is more and more incomplete,the position of the first trough moves continuously to the right of axis,the second wave crest does not appear,when the crossing bridge′s time is 30 s or 40 s,the curve of even does not appear the first trough.关键词
天然气管道/悬索跨越结构/刚性桥面板/力学性能/数值分析/模态分析/清管球Key words
liquefied natural gas/cable-suspended structure/rigid deck slab/mechanical property/numerical analysis/modal analysis/pigging ball分类
建筑与水利引用本文复制引用
陈誉,林智寰..刚性桥面板天然气管道悬索跨越结构力学性能[J].华侨大学学报（自然科学版）,2015,(1):80-85,6.基金项目
国家自然科学基金资助项目（51478047，51278209）；华侨大学中青年教师科研提升计划资助项目 （）
