Open Access
ARTICLE
Seismic Analysis of the Connections of Buried Segmented Pipes
Wei Liu1, 2, *, Zhaoyang Song2, Yunchang Wang2
1 State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai, 200092, China.
2 Department of Structural Engineering, Tongji University, Shanghai, 200092, China.
* Corresponding Author: Wei Liu. Email: .
(This article belongs to this Special Issue: Numerical Modeling and Simulation for Structural Safety and Disaster Mitigation)
Computer Modeling in Engineering & Sciences 2020, 123(1), 257-282. https://doi.org/10.32604/cmes.2020.07220
Received 09 May 2019; Accepted 12 August 2019; Issue published 01 April 2020
Abstract
Seismic analysis of buried pipes has been one study focus during the last decades,
but the systematic seismic research of pipe connections, especially its relationship with the
connected straight pipe, is nearly blank. On the basis, the influence of pipe connections on the
joint deformations (JDs) of buried segmented pipes is analyzed in detail by considering
different parameters, namely, connection shapes, ground conditions, pipe diameters, branch
angles, seismic incident angles, and input ground motions. Moreover, an influence coefficient,
which measures the influence of pipe connections on pipe JDs, is calculated. Results show
that pipe connections can reduce the JDs of segmented pipes by 40%-50%. Furthermore, the
JD is more sensitive to the connection shape, ground condition and pipe diameter than the
incident angle and characteristics of seismic waves. An influence coefficient of 0.65 is
recommended conservatively for the design of the buried segmented pipes.
Keywords
Cite This Article
Liu, W., Song, Z., Wang, Y. (2020). Seismic Analysis of the Connections of Buried Segmented Pipes.
CMES-Computer Modeling in Engineering & Sciences, 123(1), 257–282.
Citations