Paper Title:
Study on Safety Evaluation of an Aged Steel Truss Bridge with Cracking Members
  Abstract

The safety of aged steel structures, especially those with cracking members, has aroused a great deal of attention. In this paper, the application of fracture mechanics for evaluating the ultimate load-carrying of steel material is proposed. Three-point bending tests of three specimens with the mode-I fracture are done to get the ultimate load-carrying capacity, when specimens are destroyed. Fracture ductility KIC, and the steel allowable stress [σ] with certain crack length are formulated. Magnetic method for measuring cracks of steel members is adopted for an aged steel truss bridge, and material composition of specimens is tested, and field nondestructive load test involved static and dynamic test are carried into execution. By comparing the results of the calculation and those of the field test, some conclusions are obtained, which are likely to contribute to safety evaluation of aged steel structures, or contribute to designing similar bridges.

  Info
Periodical
Key Engineering Materials (Volumes 417-418)
Edited by
M.H Aliabadi, S. Abela, S. Baragetti, M. Guagliano and Han-Seung Lee
Pages
909-912
DOI
10.4028/www.scientific.net/KEM.417-418.909
Citation
L. C. Jiang, R. Gao, "Study on Safety Evaluation of an Aged Steel Truss Bridge with Cracking Members", Key Engineering Materials, Vols. 417-418, pp. 909-912, 2010
Online since
October 2009
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: Clark Hyland, W. George Ferguson
Abstract:A method for assessing likelihood of brittle fracture in cyclically loaded steel assemblies subjected to inelastic strains is proposed. The...
89
Authors: Gang Zheng, Gui Qian Li
Abstract:Based on the basic requirements of current Guidelines for Seismic Design of Highway Bridges, the orthogonal quasi-static test of four factors...
547
Authors: Lin Zhu Sun, Tie Cheng Wang, Fang Yang
Abstract:In order to determine the strength and deformation characteristics of confined concrete under axial compression of cruciform columns, the...
1366
Authors: Dong Wang, Yong Jun Liu, Zhu Yan Li
Chapter 1: High Strength High Performance Materials and New Structural System
Abstract:In order to investigate the seismic behavior of the new circular hybrid Steel–Concrete– CFRP–Concrete column (simply called SCCC column), low...
353
Authors: Xian Li, Heng Lin Lv, Shu Chun Zhou
Low Carbon, Energy Saving Design and Practice
Abstract:Fiber-reinforced polymer (FRP) bars are emerging as a competitive option for replacing steel bars as reinforcement in various concrete...
850