Local Deformed Diameter Analysis of a Pipe in Rigid Encasement for Water-crossings Application

This article presents a new type of stress assessment method for double-layered pressure vessel. Due to its robust strength, a steel–concrete composite pipe is generally installed in poor burial conditions. However, it is difficult to directly define the stress state on pipe sections. For the convenient stress estimation of pipes encased in non-circular concrete, this article suggests a Stress Index (SI), a function of the interface pressure and changed diameter, based on the interface pressure. The ovalization characteristics of plain pipes and of pipes encased by circular and rectangular concrete are examined. The resultant stresses are replaced by the non-dimensional ratio of diameter change; thus, the stress index has the advantage of application for stress assessment irrespective of pipe characteristics.

Authors and Affiliations

1. Department of Civil and Environmental Engineering, Yonsei University, Seoul, South Korea

   Jong Hwa Won, Sam Dong Jung, Jung Won Park & Moon Kyum Kim

2. School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, USA

   Gun Kim

3. GS E&C Research Institute, GS Engineering & Construction Corporation, Yongin, South Korea

   Do Hak Kim

Corresponding author

Correspondence to Sam Dong Jung .

Editors and Affiliations

1. Convergence Security, Kyoung-gi University, Suwon, Gyeonggi-do, Korea, Republic of (South Korea)

   Kuinam J. Kim

2. Dept. of Computer Information Engineerin, Sangji University, Wonju-si Gangwon-do, Korea, Republic of (South Korea)

   Kyung-Yong Chung

Reprints and permissions

© 2013 Springer Science+Business Media Dordrecht

Policies and ethics