Studies on Dynamic Characteristics of a Typical Model of Asymmetric Continuous Rigid-Frame Bridge under Different Ratio of Middle Span to Side Span

Abstract:

Due to the limit of complicated landform in western China, a typical continuous rigid-frame bridge could be easy to be built, especially for asymmetric spans. Based on the engineering background of Sinan Yantou river Bridge in Guizhou province, dynamic characteristics of the type of bridge are studied in this paper. Firstly, by using Midas/Civil, 6 different models are established and their modal analysis could be done while it is considered that the beam of left T-shaped is gradually decreasing under the same height of piers. Then, all seismic responses are calculated by using response spectra method. Finally, the computational results are discussed and some key features are summarized. Our investigation will have some valuable references for seismic analysis of the same style bridge.

• Periodical: Applied Mechanics and Materials (Volumes 226-228)
• Pages: 1543-1546
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.226-228.1543
• Online since: November 2012
• Authors: Tian Liang, Jun Dong, Xue Jian Xiang
• Keywords: Asymmetric Continuous Rigid-Frame Bridge, Dynamic Characteristic, Ratio of Middle Span to Side Span, Seismic Response

References

[1] A.J. Ye and Z.G. Guan: Seismic Design of Bridges (China Communication Press, Beijing 2011). (In Chinese).

[2] H.F. Chen and L. Duan: Bridge Engineering Seismic Design (China Machine Press, Beijing 2008). (In Chinese).

[3] Chongqing Communications Research and Design Institute: Guidelines for Seismic Design og Highway Bridges(JTG/T B02-01-2008) (China Communication Press, Beijing 2008). (In Chinese).