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

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 proceeding › Conference article published in proceeding or book › Academic research › peer-review

Abstract

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 language	English
Title of host publication	Bridge Maintenance, Safety, Management and Life-Cycle Optimization - Proceedings of the 5th International Conference on Bridge Maintenance, Safety and Management
Pages	2670-2676
Number of pages	7
Publication status	Published - 1 Dec 2010
Event	5th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2010 - Philadelphia, PA, United States Duration: 11 Jul 2010 → 15 Jul 2010

Conference

Conference	5th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2010
Country/Territory	United States
City	Philadelphia, PA
Period	11/07/10 → 15/07/10

ASJC Scopus subject areas

Safety, Risk, Reliability and Quality
Building and Construction
Architecture

Cite this

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

abstract = "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.",

author = "Ye, {X. W.} and Yiqing Ni and Ko, {J. M.} and Wong, {K. Y.}",

year = "2010",

month = dec,

day = "1",

language = "English",

isbn = "9780415877862",

pages = "2670--2676",

booktitle = "Bridge Maintenance, Safety, Management and Life-Cycle Optimization - Proceedings of the 5th International Conference on Bridge Maintenance, Safety and Management",

note = "5th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2010 ; Conference date: 11-07-2010 Through 15-07-2010",

}

Ye, XW, Ni, Y, Ko, JM & Wong, KY 2010, A method for stress concentration factor determination of welded steel bridge T-joints under moving load. in Bridge Maintenance, Safety, Management and Life-Cycle Optimization - Proceedings of the 5th International Conference on Bridge Maintenance, Safety and Management. pp. 2670-2676, 5th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2010, Philadelphia, PA, United States, 11/07/10.

A method for stress concentration factor determination of welded steel bridge T-joints under moving load. / Ye, X. W.; Ni, Yiqing; Ko, J. M. et al.
Bridge Maintenance, Safety, Management and Life-Cycle Optimization - Proceedings of the 5th International Conference on Bridge Maintenance, Safety and Management. 2010. p. 2670-2676.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

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AU - Ye, X. W.

AU - Ni, Yiqing

AU - Ko, J. M.

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PY - 2010/12/1

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N2 - 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.

AB - 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.

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M3 - Conference article published in proceeding or book

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ER -

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

Abstract

Conference

ASJC Scopus subject areas

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