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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 18
Edited by: B.H.V. Topping
Paper XV.3

Animation of Ground Surface 3D Movements During an Earthquake

H. Hao, S.F. Yap, B.S. Bay and S.K. Kuan

School of Civil and Structural Engineering, Nanyang Technological University, Singapore

Full Bibliographic Reference for this paper
H. Hao, S.F. Yap, B.S. Bay, S.K. Kuan, "Animation of Ground Surface 3D Movements During an Earthquake", in B.H.V. Topping, (Editor), "Developments in Structural Engineering Computing", Civil-Comp Press, Edinburgh, UK, pp 409-415, 1993. doi:10.4203/ccp.18.15.3
This paper applies 3D computer animation to represent ground surface movements based on multiple ground motion data during an earthquake.

The ground motion data at various points on the ground surface are either numerically simulated or recorded during an earthquake. A numerical method of simulating the spatially correlated, piecewise stationary and response spectrum compatible ground motions will be presented first. The second part illustrates several animation algorithms that are used to achieve a realistic visual effect of ground surface movements. The ground surface is assumed to be flat and modelled by wire frames or polygon meshes with lighting and shading considerations. An example is included to demonstrate the effects of the different animation algorithms.

The ability to display a set of the recorded or simulated multiple earthquake ground motion data through the computer animation provides a realistic view to earthquake engineers. The developed program can also be used to train students in learning the earthquake effects.

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