Journal Published Online: 01 March 2019
Volume 48, Issue 1

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

CODEN: JTEVAB

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, People’s Republic of China
Jinghai, Yu
Tianjin University Research Institute of Architectural Design and Urban Planning, Tianjin, People’s Republic of China
Zhihua, Chen
Department of Civil Engineering, Tianjin University, Tianjin, People’s Republic of China Key Laboratory of Coast Civil Structure and Safety, Ministry of Education, Tianjin University, Tianjin, People’s Republic of China
Jinchao, Huang
Department of Civil Engineering, Tianjin University, Tianjin, People’s Republic of China
Zhe, Wang
Department of Civil Engineering, Tianjin University, Tianjin, People’s Republic of China
Hongbo, Liu
Department of Civil Engineering, Tianjin University, Tianjin, People’s Republic of China
Pages: 19
Price: $25.00
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Stock #: JTE20180595
ISSN: 0090-3973
DOI: 10.1520/JTE20180595