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    Volume 48, Issue 1 (March 2019)

    Special Issue Paper

    Experimental Study on the Buckling of Subsea Pipe-in-Pipe Systems

    (Received 20 August 2018; accepted 26 November 2018)

    Published Online: 01 March 2019

    CODEN: JTEVAB

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    Abstract

    Global buckling often occurs in high-temperature and high-pressure subsea pipe-in-pipe (PIP) systems. However, only a few studies, especially experimental studies, have been conducted on the lateral buckling of PIP systems. An experimental study on the lateral buckling of a PIP system was carried out in this article. The experimental device for the global buckling of oil temperature-loaded PIP system was designed, and the lateral buckling experiment was carried out for nine groups of PIP systems. The working mechanism of the PIP system was obtained through the experiment, and the critical point for pipeline buckling was determined according to the sum of the axial forces of the outer and inner pipes. The experimental results indicated that the lateral buckling response were related to the wavelength l0, whereas the effect of amplitude Vm was relatively small.

    Author Information:

    Zechao, Zhang
    Department of Civil Engineering, Tianjin University, Tianjin,

    Jinghai, Yu
    Tianjin University Research Institute of Architectural Design and Urban Planning, Tianjin,

    Zhihua, Chen
    Department of Civil Engineering, Tianjin University, Tianjin,

    Key Laboratory of Coast Civil Structure and Safety, Ministry of Education, Tianjin University, Tianjin,

    Jinchao, Huang
    Department of Civil Engineering, Tianjin University, Tianjin,

    Zhe, Wang
    Department of Civil Engineering, Tianjin University, Tianjin,

    Hongbo, Liu
    Department of Civil Engineering, Tianjin University, Tianjin,


    Stock #: JTE20180595

    ISSN:0090-3973

    DOI: 10.1520/JTE20180595

    Author
    Title Experimental Study on the Buckling of Subsea Pipe-in-Pipe Systems
    Symposium ,
    Committee B05