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气浮结构的浮态和运动特性分析与试验
引用本文:别社安,徐艳杰,王光纶.气浮结构的浮态和运动特性分析与试验[J].清华大学学报(自然科学版),2001,41(11):123-126.
作者姓名:别社安  徐艳杰  王光纶
作者单位:1. 天津大学建筑工程学院
2. 清华大学水利水电工程系
基金项目:国家“九五”科技攻关项目 (96-4 15 -0 3 -0 3 )
摘    要:研究了筒型基础结构气浮的浮态和运动特性。假设浮筒内的空气为理想气体 ,导出了气浮力的计算式 ,建立了气浮结构静稳态的分析方法和浮态参数的计算方法。按单自由度刚体弹簧体系求得了气浮结构升沉运动的固有周期 ,并对气浮结构的动态特性进行了分析。浮态理论计算结果与模型试验和现场试验数据吻合。文中引进的气浮力折减因数体现了气浮体的恢复力刚度系数与普通浮体的差异 ,该参数对气浮体的浮态、稳性、运动特性都有很大的影响。

关 键 词:气浮  气浮特性  气浮力折减因数  筒型基础结构
文章编号:1000-0054(2001)11-0123-04
修稿时间:2000年9月6日

Study on floating state and kinetic properties of the air floated structures
BIE Shean ,XU Yanjie ,WANG Guanglun.Study on floating state and kinetic properties of the air floated structures[J].Journal of Tsinghua University(Science and Technology),2001,41(11):123-126.
Authors:BIE Shean  XU Yanjie  WANG Guanglun
Institution:BIE Shean 1,XU Yanjie 2,WANG Guanglun 2
Abstract:Based on the assumption that the compression relationship of the air closed in the buoy is linear, the equations to calculate the air buoyancy are deduced and the methods of analyzing floating parameters of the air floated structures are established. Simplifying the air floated structure as a single freedom rigid body and spring system, the inherent period of heaving and some kinetic properties are presented. The theoretical results are in good agreement with the data observed from the model test and prototype test. The air floating decrease facter represents the difference of restoring forces between the conventional floating structures and the air floated ones, and it has large influence on the floating state, stability and kinetic properties of the air floated structures.
Keywords:air  floating state  air floating properties  air buoyancy decrease facter  bucket foundation structures
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