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Structural Engineering and Mechanics Volume 22, Number 5, March30 2006 , pages 575-597 DOI: https://doi.org/10.12989/sem.2006.22.5.575 |
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Enhanced finite element modeling for geometric non-linear analysis of cable-supported structures |
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Myung-Kwan Song, Sun-Hoon Kim and Chang-Koon Choi
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| Abstract | ||
| Enhanced three-dimensional finite elements for geometrically nonlinear analysis of cable-supported structures are presented. The cable element, derived by using the concept of an equivalent modulus of elasticity and assuming the deflection curve of a cable as catenary function, is proposed to model the cables. The stability functions for a frame member are modified to obtain a numerically stable solution. Various numerical examples are solved to illustrate the versatility and efficiency of the proposed finite element model. It is shown that the finite elements proposed in this study can be very useful for geometrically nonlinear analysis as well as free vibration analysis of three-dimensional cable-supported structures. | ||
| Key Words | ||
| cable-supported structures; geometric nonlinear analysis; free vibration analysis; cable element; frame element; stability function. | ||
| Address | ||
| Myung-Kwan Song; Department of Specific Structures, Chungsuk Engineering Co., Ltd, Seoul 138-802, Korea Sun-Hoon Kim; Department of Civil and Environmental Engineering, Youngdong University, Chungbuk 370-701, Korea Chang-Koon Choi; Department of Civil and Environmental Engineering, KAIST, Daejeon 305-701, Korea | ||