Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/34179
Title: Second-order analysis and buckling based design of transmission tower without effective length assumptions
Authors: Fong, M
Cho, SH
Liu, YP
Chan, SL 
Selvanathan, J
Keywords: Angles
Buckling
Second-order analysis
Issue Date: 2009
Source: ICASS '09/IJSSD - Proceedings of Sixth International Conference on Advances in Steel Structures and Progress in Structural Stability and Dynamics, 2009, p. 875-882 How to cite?
Abstract: Second-order analysis has been widely used for structures with members composed of symmetrical sections but its application to members of asymmetric sections is rather limited. In a recent project by the authors on design of a transmission tower in Myanmar which uses starred angles as main members and single angles as bracing members, the method is used and compared with the linear analysis. The initial imperfections recommended by design code are used and it was found that the method reduces significantly the design time required. Also, the result was found to be more rational than the linear analysis such as the complexity in assuming the buckling length of the legs which are continuous but intermediately tied by bracings and also under axial forces varying along the lengths. The proposed second-order analysis and design method eliminates the uncertainty of assumption for effective length which may lead to significant error in many practical structures.
Description: 6th International Conference on Advances in Steel Structures and Progress in Structural Stability and Dynamics, ICASS 2009, Hong Kong, 16-18 December 2009
URI: http://hdl.handle.net/10397/34179
ISBN: 9789889914059
Appears in Collections:Conference Paper

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