Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8965114 | Engineering Structures | 2018 | 12 Pages |
Abstract
Long-span spatial structures are commonly used as landmarks in modern cities and may be potential targets of terrorist attacks; thus, it is important to study the dynamic behaviour of such structures under blast actions. In this study, experiments were conducted on two reduced-scale models which were designed and manufactured. The aims of the experiments were to (i) assess the accuracy of a numerical approach for simulating the structural dynamic responses based on the finite element software, “ANSYS/LS-DYNA”, and (ii) survey the various failure modes of single-layer reticulated domes under an external blast loading. The numerical results showed a good agreement with the experiments when the empirical load model was used to study the elastic and inelastic deformation of a multi-curved shell. Additionally, the deformation, development of plasticity, and energy absorbing behaviour of each component were examined, and the following four major response patterns were identified: elastic vibration, slight damage, local failure, and global collapse.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Geotechnical Engineering and Engineering Geology
Authors
Xudong Zhi, Shaobo Qi, Feng Fan, Ximei Zhai,