Floating roof analysis and design using minicomputers

Floating roof analysis and design using minicomputers
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利用小型机进行浮顶分析与设计

DOI:
10.1016/0045-7949(80)90085-1
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发表时间:
1980
影响因子:
4.7
通讯作者:
H. Epstein
H. Epstein
中科院分区:
工程技术2区
文献类型:
--
作者:
H. Epstein

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浮顶用于储油罐,以减少蒸发和搬运损失,减少腐蚀,减少火灾危险。本文采用的是浮筒屋盖。它由一个圆形的中心板组成,它的边缘连接着一个隔间的浮环。这个屋顶的主要设计荷载是由于累积的雨水或被刺穿的甲板。设计荷载通常会使桥面产生数百倍于其厚度的挠度,因此通常将桥面作为膜来设计和分析。膜上荷载的复杂性质以及不寻常的边界条件要求对控制其行为的耦合、非线性微分方程组进行数值积分。需要一名熟练的分析师来改变集成所需的启动参数。本文描述了在分析和设计屋顶时应遵循的程序,并说明了为什么交互式计算机在理解该结构中的力以及传递这些力所需的设计中如此重要。
Floating roofs are used in oil storage tanks to reduce evaporation and handling losses, decrease corrosion, and reduce the fire hazard. A pontoon roof is used in this paper. It consists of a circular central plating attached at the edge to a compartmented; buoyant ring. The primary design loadings for this roof are due to accumulated rainwater or a punctured deck. The design loads typically cause the deck to deflect several hundred times its thickness and consequently the deck is usually designed and analyzed as a membrane.The complicated nature of the loading on the membrane together with the unusual boundary conditions require numerical integration of the coupled, non-linear differential equations which govern the behavior. A skilled analyst is needed to vary the starting parameters necessary for the integration. This paper describes the procedure that should be followed in the analysis and design of the roofs, and shows why an interactive computer is so important in the understanding of the forces in this structure and in the design necessary to transmit them.