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http://dx.doi.org/10.7734/COSEIK.2015.28.1.53

Buckling Behaviors of Single-Layered Lattice Dome under Radial Uniform Loads  

Kim, Choong-Man (Dept. of Architectural Eng., Hanyang Univ.)
Yu, Eun-Jong (Dept. of Architectural Eng., Hanyang Univ.)
Rha, Chang-Soon (Dept. of Architecture, Kookmin Univ.)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.28, no.1, 2015 , pp. 53-61 More about this Journal
Abstract
This paper presented the nonlinear behaviors of the single-layered lattice dome, which is widely used for the long-span structure system. The behaviors were analysed through the classical shell buckling theory as the single-layered lattice dome behaves like continum thin shell due to its geometric characteristics, and finite element analysis method using the software program Nastran. Shell buckling theory provides two types of buckling loads, the global- and member buckling, and finite element analysis provides the ultimate load of geometric nonlinear analysis as well as the buckling load of Eigen value solution. Two types of models for the lattice dome were analysed, that is rigid- and pin-jointed structure. Buckling load using the shell buckling theory for each type of lattice dome, governed by the minimum value of global buckling or member buckling load, resulted better estimation than the buckling load with Eigen value analysis. And it is useful to predict the buckling pattern, that is global buckling or member buckling.
Keywords
lattice dome; shell buckling theory; finite element analysis; geometric nonlinear analysis;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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