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Seismic Behavior of Pipe Joints 管道接头的抗震性能
发布日期: 2002-01-01
本文介绍了一个静态和动态测试程序的程序和结果,该程序旨在确定一些典型的有约束和无约束埋地管道接头的轴向刚度和受力能力。在过去的地震中,管道遭受了损坏和破坏,并已被证明易受地震运动的影响。大量文件表明,大多数管道故障都发生在未受约束的管道接头上,因此,需要检查未受约束和受约束的管道接头,并调查其轴向强度特性,以帮助减轻潜在的损坏和故障。该测试程序使用了五种不同的材料类型,八种不同的接头类型和几种不同的管道直径。试验结果以荷载-位移图和表格的形式给出,其中列出了轴向刚度和受力能力。 将静态结果与动态结果进行比较,以确定静态测试是否足以表征管道接头的动态行为。本文还提出了将试验结果用于管道系统分析和风险评估的方法。包括6个参考文献、表格、图表。
This paper describes the procedures and results of a static and dynamic testing program designed to determine the axial stiffness and force capacity of some typical restrained and unrestrained buried pipe joints. Pipelines have suffered damage and failure from past earthquakes and have been shown to be vulnerable to seismic motions. It has been well documented that a majority of the pipeline failures have occurred at unrestrained pipe joints and therefore, pipe joints, both unrestrained and restrained, need to be examined and their axial strength characteristics need to be investigated in order to help mitigate potential damage and failure. Five different material types with eight different joint types and several different pipe diameters were used in this testing program. The test results are given as load-displacement plots and tables listing the axial stiffness and force capacities. A comparison is made between static results and dynamic results to determine if static testing is sufficient to characterize the dynamic behavior of pipe joints. This paper also suggests methods to use test results for pipeline system analysis and for risk assessment evaluation. Includes 6 references, tables, figures.
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发布单位或类别: 美国-美国给水工程协会
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