Seismic Analysis of Sutong River Bridge Tower

  • Do T
  • Holmes L
  • Grammer J
N/ACitations
Citations of this article
1Readers
Mendeley users who have this article in their library.

Abstract

The Sutong River Bridge is the longest spanning cable-stayed bridge in the world, and is located in China between the cities of Suzhou and Nantong. The purpose of our project was to conduct a seismic analysis of one of the two main bridge towers that are each more than 300 meters tall. We analyzed the main tower because it is the most important element of the bridge and we considered the tower during its most vulnerable state, the construction phase. Our goal was to replicate the results of Binbin Wang and Wancheng Yuan’s research on the Sutong River Bridge as well as compare the results to a modal analysis as outlined by Chopra in Dynamics of Structures. To further our inspection of the tower we exposed it to two directions of ground motions whereas Wang and Yuan only used a single direction analysis. We adopted a suitable suite of seismic recording that numbered more than thirty ground motions and then built a finite element model of the tower. We employed a progressive, performance-based approach to analyze the tower’s performance rather than the standard of a deterministic approach. In order to determine the performance of the tower we created a plot comparing the probability of exceedance to the response spectrum value, Sa. By creating three different plots of drifts, ranging from 1% to 3%, we were able to detail under what scaled ground motion the tower would fail. By completing this detailed approach we were able to fully understand and give a seismic design for the bridge tower under construction conditions.

Cite

CITATION STYLE

APA

Do, T. Q., Holmes, L., & Grammer, J. (2012). Seismic Analysis of Sutong River Bridge Tower. In CE 591 Earthquake Engineering (pp. 1–4). Tuscaloosa, AL.

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free