| Title |
Dynamic Buckling Analysis of Lattice Dome Structures Considering Geometrical Nonlinearity |
| Authors |
Han Sang-Eul ; Kim Man-Joong ; Kang Noh-Won |
| Keywords |
Spatial Structure ; Geometrical Nonlinearity ; Dynamic Buckling ; Lyapunov Stability |
| Abstract |
In this paper, the dynamic buckling criteria based on the stability of Lyapunov sense is introduced in order to analyze the dynamic buckling of latticed dome structures. As analytic models, we consider shell-like shallow truss models such as star-shape dome, span 50m latticed dome. We perform a nonlinear time history analysis and apply the dynamic buckling criteria which is introduced in this paper. Dynamic buckling loads are numerically estimated under up and down conservative forces, which are step, harmonic and seismic excitations, and compared with the static critical loads. |