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Suggestion of Reasonable Analysis Model for Steel Transmission Tower Based on KEPCO Design Specifications  

Chang, Jin Won (고려대학교 건축사회환경공학과)
Kim, Seung Jun (고려대학교 건축사회환경공학과)
Park, Jong Sup (상명대학교 토목환경공학부)
Kang, Young Jong (고려대학교 건축사회환경공학과)
Publication Information
Journal of Korean Society of Steel Construction / v.19, no.4, 2007 , pp. 367-381 More about this Journal
Abstract
A transmission tower was designed using the structural methodology to assume a simple truss behavior. However, there is a big difference between a simple truss behavior and a real one. A suitable explanation of structural stability is that it is a semi-rigid connection and not the assumed hinged connection. This study proposes an alternative structural-analysis modeling strategy for the transmission tower design. The element models that were considered were the truss element model, the beam element model, and the combined beam-truss element model. This study includes linear static analysis, free-vibration analysis, and elastic buckling analysis with respect to the design load. The results of the analysis indicate that the axial forces, axial stresses, and maximum displacements of the three analytical models are very similar. However, the bending moments and stresses of the beam element model and of the combined beam-truss element model are significantly high. The results of the free-vibration and elastic buckling analyses show that the beam-truss model can be conservatively used for the transmission tower design.
Keywords
Transmission tower; analysis methodology; linear static analysis; stress distribution;
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Times Cited By KSCI : 1  (Citation Analysis)
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