Welded Steel Pipe Joint Seismic Design Procedure for Transient Ground Shaking and Other Axial Loading
Publication: Pipelines 2023
ABSTRACT
Few design procedures exist to account for seismic forces imposed on pipeline systems, let alone those that are practical to implement. This paper presents a practical approach to establishing the minimum required joint strength for welded steel pipe (WSP) under severe axial loading, including that from transient ground shaking. This work is based on previously established procedures developed by the Willamette Water Supply Program (WWSP, Program) in support of achieving their seismic resilience goals. The WWSP is a $1.6 billion program that includes over 30 mi of large diameter water transmission line in the seismically active Pacific Northwest region, which is at risk of a magnitude 9.0 Cascadia Subduction Zone earthquake. This paper discusses three methods to consider transient ground shaking and provides a practical step-by-step approach to solve for the required joint strength in sections of WSP pipe, including those in areas of high axial loading. An example is also provided for ductile iron pipe.
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Information
Published In
Pipelines 2023
Pages: 354 - 363
History
Published online: Aug 10, 2023
ASCE Technical Topics:
- Axial loads
- Continuum mechanics
- Dynamic loads
- Dynamics (solid mechanics)
- Earthquake engineering
- Engineering fundamentals
- Engineering mechanics
- Geotechnical engineering
- Infrastructure
- Joints
- Pipe joints
- Pipeline systems
- Pipes
- Seismic design
- Seismic effects
- Seismic loads
- Seismic tests
- Solid mechanics
- Static loads
- Statics (mechanics)
- Steel pipes
- Structural dynamics
- Structural engineering
- Structural members
- Structural systems
- Tests (by type)
- Transient loads
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