Paper Title:
Study on Time-Variant Robustness Assessment Method of Complex Bridges
  Abstract

In order to accurately assess the robustness of the complex bridge structure, a method of robustness assessment that takes structure degradation and accidental loads into consideration is proposed. Firstly, the degradation rates of member section properties and the increasing rate of live load are set as variables. The parametrical model of structure is established by the finite element software of ANSYS. Secondly, the structure robustness is based upon analysis from the robustness index, the reserve strength factor and the residual strength factor. The effects of three degradation rates of section properties, the established increasing rate of live loads and accidental loads on the robustness of bridges are considered. Finally, this method is used to analyze the time-variant robustness of Guotai Bridge located on the Haihe River of Tianjin. The results indicate that different degradation rates of member section properties have different effect on the robustness of Guotai Bridge, the effect of accidental loads has a close relationship with its acting position.

  Info
Periodical
Advanced Materials Research (Volumes 250-253)
Edited by
Guangfan Li, Yong Huang and Chaohe Chen
Pages
1962-1965
DOI
10.4028/www.scientific.net/AMR.250-253.1962
Citation
J. S. Zhu, J. Song, "Study on Time-Variant Robustness Assessment Method of Complex Bridges", Advanced Materials Research, Vols. 250-253, pp. 1962-1965, 2011
Online since
May 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Xiao Yan Xiong, Miao Zhang, Xiao Ping Li, Shao Juan Yu
Abstract:Based on chaotic characteristics in vertical direction of vibrating screen sides, nonlinear methods were proposed to diagnose crack of...
1258
Authors: Ying Lin Li, Li Hui Cao, Lian He Yang
Abstract:Weft knitted pattern design is one of the most important compositions of textile CAD. Traditional pattern design has a higher request on...
576
Authors: Yong Hua Zhang, Jian Hui He, Guo Qing Zhang
Abstract:This paper aims to understand influence of the obliquity of fin ray on its motion performance. An environment-friendly propulsion system...
267
Authors: Ioana Pintilie, Francesco Moscatelli, Roberta Nipoti, Antonella Poggi, Sandro Solmi, Lars S. Løvlie, Bengt G. Svensson
Abstract:The effect of nitrogen (N) introduced by ion implantation at the SiO2/4H-SiC interface on the capacitance of the MOS capacitors is...
326
Authors: Yi Mei, Fang Ping Wang, Qiao Ying Liu, Yu Tao Mao
Abstract:To solve the thermal deformation caused by thermal load of heavy machinery gearbox, it is established that coupled analysis model to carry...
651