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STEEL STORAGE TANK SHELL SETTLEMENT ASSESSMENT BASED ON FINITE ELEMENT AND API STANDARD 653 ANALYSES

机译:基于有限元法和API标准653分析的钢制储罐罐壳沉降评估

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摘要

API Standard 653 addresses issues related to the inspection, repair, alteration and reconstruction of steel storage tanks built according to API Standard 650 or API 12C to help maintain tank integrity. Although the standard covers three types of tank settlement, namely edge, bottom and shell, this paper focuses on the assessment of shell settlement. It also provides a comparison between an analytical model based on API Standard 653 and a finite element analysis (FEA) model that replicates field operating loading and settlement conditions of storage tanks. A basis for comparison between both models was established from the maximum allowable settlement and strain values. Several scenarios were generated using actual field data collected from steel storage tanks located in Alberta to illustrate the correlation between the two models. Specific information on the storage tanks under consideration cannot be disclosed for confidentiality reasons.
机译:API标准653解决了与根据API标准650或API 12C建造的钢制储罐的检查,维修,改动和重建有关的问题,以帮助维护储罐的完整性。尽管该标准涵盖了罐体沉降的三种类型,即边缘沉降,底部沉降和壳体沉降,但本文着重于壳体沉降的评估。它还提供了基于API标准653的分析模型与可复制野外作业储油罐装载和沉降条件的有限元分析(FEA)模型之间的比较。从最大允许沉降和应变值确定了两个模型之间进行比较的基础。使用从位于艾伯塔省的钢制储罐中收集的实际现场数据生成了几种方案,以说明这两种模型之间的相关性。出于保密原因,不能透露所考虑的储罐的具体信息。

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