UBC Theses and Dissertations
Review, implementation and demonstration of dynamic analysis and ground motion models Ramani, Vasantha
Dynamic structural analysis in recent years has gained importance due to increasing need to design structures for seismic resistance and also meet different performance demands. Also, structures are becoming more complex and it is difficult to accurately simulate their dynamic behavior using static analyses. With the advent of better computational capacity, engineers have been adopting computer programs for design and analyses of buildings. Making use of the advancement in computation and the need for dynamic analyses, tools required for dynamic analyses are implemented in a software called Rts. Rts is the next version of Rt, a computer program for risk and reliability analysis. For dynamic analyses it is required to have a ground motion input which can either be selected from existing databases of ground motion records or be generated as synthetic ground motions. If using actual ground motions it is required to modify them so that they match the anticipated hazard level. To overcome the limitation of scarcity of ground motion records, synthetic ground motion models can be used. To accomplish this in Rts, a synthetic ground motion model is implemented. The dynamic analysis algorithm and the ground motion models are implemented using object oriented programming. These implementations can be seen as a stepping stone to develop a computer program that would be robust and closely simulate the behavior of structures. It also forms the platform for future research for performance based earthquake engineering design and reliability analysis.
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