| Title |
Dynamic Behavior Characteristics of the Open-Shaped Hybrid Dome Structural System Subjected to Wind Loads |
| Authors |
Han Sang-Eul ; Koh Hyun-Seok |
| Keywords |
Stiffly Stable Method ; Cable Dome ; Hybrid Structure ; Geometrically Nonlinear Dynamic Analysis |
| Abstract |
Cable-domes are representative of Hybrid structures. For their material properties and pretensions, they can generate large deformation which shows geometrical non-linearity. Because Hybrid structures are flexible structures whose stiffness and self-weight are very small, when carry out dynamic analysis, wind load is more dominant than seismic load. Hybrid structures are composed of closed shape like Seoul Olympic Gymnasium and open(irregular) shape like Busan Asiad Main Stadium as cable-dome's shape. Thus, we analyze these behavior character of the open-shapes at this study, and the analysis method for solving nonlinear finite element equations is modified Newton-Raphson method. Furthermore, for dynamic analysis method is Stiffly Stable Method which is based on backward-difference. Then, we compare its convergence criteria with Newmark-β method, and we find out dynamic behavior characteristics when it comes to member force, when some cable members such as upper or lower diagonal cables and upper or lower inner ring cables are broken. |