Numerical Analysis of Anti-Seismic Properties Comparison between Circular and Rectangle Caisson Foundations

Abstract:

As an important form of bridge foundation, caisson foundations are usually utilized based on the local geological and hydrological conditions. The static analysis is the main means to testify the reasonableness of the designing shape and size of caisson, but the dynamic analysis is usually ignored. To compare the anti-seismic difference between circular and rectangle caisson foundations, we use the software FLAC3D as the numerical simulation tool. By applying the seismic waves to the grid points at the bottom of the models, the time-history curves of acceleration, velocity, and displacement on the key points are obtained. From the results, we can draw the conclusions that when the cross-sectional area of the rectangular caisson is equal to that of the circular, the stability of the rectangular caisson is better than that of the circular.

• Periodical: Advanced Materials Research (Volumes 1030-1032)
• Pages: 807-810
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1030-1032.807
• Online since: September 2014
• Authors: Feng Hu*, Lin Wang, Guo Jian Shao, Fei Wu
• Keywords: Anti-Seismic Properties, Caisson Foundation, Numerical Analysis, Seismic Waves, Shape Difference

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