Structural failure analysis of 345 kV transmission line

Journal Article · Fri Apr 01 04:00:00 EST 1994 · IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/61.296272· OSTI ID:7170765

Gupta, S ^[1]; Wipf, T J; Fanous, F; Baeziger, M ^[2]; Hahm, Y H ^[3]

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1. Tri State Engineering, New Martinsville, WV (United States)
2. Iowa State Univ., Ames, IA (United States). Civil and Construction Engineering Dept.
3. Midwest Power, Des Moines, IA (United States)

An ice storm in Central Iowa on March 7, 1990, caused the domino failure of 69 H frame steel pole structures that were part of a 345 KV transmission line covering a distance of approximately 30.6 km (19 mi). This paper briefly documents the damage, and presents the nonlinear structural analyses performed on a portion of the above transmission line using the ETADS software, which is a structural finite element submodule of TL Workstation software. The analysis included a characterization of the likely storm loads and their application to the transmission systems. The methodology used in trying to simulate the sequence of events leading to the failure is also presented.

• OSTI ID: 7170765
• Journal Information: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States) Vol. 9:2; ISSN 0885-8977; ISSN ITPDE5
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240303* -- Power Transmission Lines & Cables-- Overhead Lines-- (1990-)
DEFORMATION
FAILURE MODE ANALYSIS
MECHANICAL STRUCTURES
OVERHEAD POWER TRANSMISSION
POWER TRANSMISSION
POWER TRANSMISSION LINES
POWER TRANSMISSION TOWERS
STATIC LOADS
STRESSES
SYSTEM FAILURE ANALYSIS
SYSTEMS ANALYSIS