A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Failure Analysis of Transmission Line Towers
Transmission line towers, though designed per code provisions, may fail during mandatory testing required in many countries. Different types of premature failures that were observed during full-scale testing of transmission line towers at Tower Testing and Research Station, Structural Engineering Research Centre, Chennai (CSIR-SERC) are studied, and the results are discussed in detail. The failures are modeled using finite-element software, and the analytical results and the test results are compared with various code provisions. The nonlinear finite-element analysis program NE-Nastran was used to model the elastoplastic behavior of towers. Bracing members with slenderness ratios above 170 become ineffective, even though they have to carry insignificant forces. Importance of design assumptions and connection detailing in overall performance of towers were studied. Nonlinear finite-element analysis is useful in understanding the system behavior and for prediction of the failure pattern and ultimate load. Based on the test results, the importance of studying these failures is highlighted and significant conclusions were drawn.
Failure Analysis of Transmission Line Towers
Transmission line towers, though designed per code provisions, may fail during mandatory testing required in many countries. Different types of premature failures that were observed during full-scale testing of transmission line towers at Tower Testing and Research Station, Structural Engineering Research Centre, Chennai (CSIR-SERC) are studied, and the results are discussed in detail. The failures are modeled using finite-element software, and the analytical results and the test results are compared with various code provisions. The nonlinear finite-element analysis program NE-Nastran was used to model the elastoplastic behavior of towers. Bracing members with slenderness ratios above 170 become ineffective, even though they have to carry insignificant forces. Importance of design assumptions and connection detailing in overall performance of towers were studied. Nonlinear finite-element analysis is useful in understanding the system behavior and for prediction of the failure pattern and ultimate load. Based on the test results, the importance of studying these failures is highlighted and significant conclusions were drawn.
Failure Analysis of Transmission Line Towers
Prasad Rao, N. (author) / Samuel Knight, G. M. (author) / Seetharaman, S. (author) / Lakshmanan, N. (author) / Iyer, Nagesh R. (author)
Journal of Performance of Constructed Facilities ; 25 ; 231-240
2011-06-01
10 pages
Article (Journal)
Electronic Resource
English
Failure Analysis of Transmission Line Towers
| Online Contents | 2011
Studies on failure of transmission line towers in testing
| Elsevier | 2011
Studies on failure of transmission line towers in testing
| Online Contents | 2012
Computational framework for mimicking prototype failure testing of transmission line towers
| Online Contents | 2016