A method for stress concentration factor determination of welded steel bridge T-joints under moving load

X. W. Ye, Yiqing Ni, J. M. Ko, K. Y. Wong

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review


This paper aims to seek a method for determining the SCF and its stochastic characteristics for a typical welded steel bridge T-joint. This goal is accomplished by conducting full-scale model experiments of a railway beam section of the suspension Tsing Ma Bridge (TMB). The strain data of the pre-allocated measuring points are acquired and the hot spot strain at the weld toe is determined by a linear regression method. The SCF is then calculated as the ratio between the hot spot strain and the nominal strain which is derived from the measured data from desired strain gauge. To take full account of the effect of predominant factors on the scatter of SCF, the experiments are carried out under different moving load conditions. The statistical properties and probability distribution of SCF are achieved, which reveals that SCF for the welded steel bridge T-joint conforms to a normal distribution.
Original languageEnglish
Title of host publicationBridge Maintenance, Safety, Management and Life-Cycle Optimization - Proceedings of the 5th International Conference on Bridge Maintenance, Safety and Management
Number of pages7
Publication statusPublished - 1 Dec 2010
Event5th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2010 - Philadelphia, PA, United States
Duration: 11 Jul 201015 Jul 2010


Conference5th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2010
Country/TerritoryUnited States
CityPhiladelphia, PA

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Building and Construction

Cite this