Seismic Response on the Mangjiedu Long-Span PC Continuous Rigid Frame Bridge with High Piers

Abstract:

The selected high-span continuous rigid frame bridge for studying is Mangjiedu Bridge in this paper. Based on the principle of structure dynamics and the method of seismic response analysis, the finite element model of the main bridge in Mangjiedu Bridge under Midas-civil was built according to the structural features, site conditions and seismic fortification intensity of the bridge. Then the characteristics of main bridge structure were studied using Lanzcos modal analysis method, and the seismic responses of main bridge are studied by earthquake response spectrum analysis and time history analysis respectively. The results show that the fundamental frequency of the main bridge is 0.1943Hz, and the transverse vibration mode shapes are most remarkable in the former 10 ordered types of vibration of main bridge. The main bridge is in the conditions of elastic range and does not failure under E1 earthquake. Both response spectrum analysis and time history analysis show that the largest displacement along the main bridge appears at the top of pier and the largest transverse displacement appears in the central position of main span. It also shows that the maximum shear and maximum moment occur at the bottom of main pier.

• Periodical: Applied Mechanics and Materials (Volumes 444-445)
• Pages: 1265-1271
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.444-445.1265
• Online since: October 2013
• Authors: Jian Bin Xie, Deng Feng Hu, Miao Fu, Chang Chang Wu
• Keywords: Continuous Rigid Frame Bridge, Earthquake Response Spectrum Analysis, Finite Element Method (FEM), Seismic Response, Time History Analysis

References

[1] Ministry of Transport of the People's Republic of China: Guidelines for Seismic Design of Highway Bridges, JTG/T B02-01-2008, (China Communications Press, China 2008) [In Chinese].

[2] Ministry of Housing and Urban-Rural Development of the People's Republic of China: Code for seismic design of buildings, GB 50011-2010, (China Building Industry Press, China 2010) [In Chinese].

[3] Wang Xiugen: Journal of Jiangnan University (Natural Science Edition), Vol. 8, No. 2 (2009), pp.218-222 [In Chinese].

[4] Said M. Allam, T. K. Datta: Earthquake Engineering and Structural Dynamics, Vol. 33, (2004), pp.375-393.

[5] Li Li, Peng Yuancheng, Long Xiaohong, Liao Ping: Journal of China University of Geosciences, Vol. 16, No. 1 (2005), pp.72-78.

[6] Ji Yao, Jiaquan Wu, Liang Cao, Xiaoyu Cheng, Kun Ma: Advanced Materials Research, Vols. 255-260, (2011), pp.183-187.

[7] Li Li, Zhang Hang, Long Xiaohong, Ye Zhixiong: Earthquake Resistant Engineering and Retrofitting, Vol. 30, No. 6 (2008), pp.84-88 [In Chinese].