Dynamic Performance Analysis of Steel Truss Bridge

Abstract:

Steel truss bridge is an important part of transportation hub and lifeline engineering, it recently has attracted more attention on dynamic performance of steel truss bridge. In this paper, the ANSYS software is used to perform the modal analysis of steel truss bridge, and we find that the main bridge are more sensitive to the vertical earthquake (i.e., Y direction). In the earthquake response spectrum analysis on Y direction, we find that the maximum deformation is at mid-span of steel truss bridge. In the transient analysis of seismic waves, under the action of horizontal and vertical earthquake accelerations, the structure displacement dynamic diagram and time-history displacement curve are obtained and some conclusions are drawn.

• Periodical: Applied Mechanics and Materials (Volumes 423-426)
• Pages: 1548-1551
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.423-426.1548
• Online since: September 2013
• Authors: Shan Shan Wang, Tao Xu, Si Feng Qin, Yun Jie Zhang
• Keywords: Modal Analysis, Response Spectrum, Steel Truss Bridge, Transient Analysis

References

[1] Sifeng Qin. Static nonlinear analysis methods for estimating seismic performance for bridges: [D]. Dalian: Dalian University of Technology, (2008).

[2] Xiujun Zhang, Junsong Liu. Modal Analysis of Truss Structure Based on Ansys [J], Journal of Astronautic Metrology and Measurement. Vol. 32(2012), pp.17-20.

[3] Lichu Fan: Seismic Design of Bridges [M]. Shang hai: TongJi University Press (1996): 33-57.

[4] Yueyu Liu, Zilin Li: Seismic response analysis of steel truss bridge [J], Journal of Tianjin Institute of Urban Construction. Vol. 14(2008), pp.168-170.

[5] Aijun Ye, Analysis of the dynamic response of continuous steel truss bridge based on earthquake [J], Shanxi Architiecture. Vol. 34(2008), pp.318-319.