Lateral-torsional buckling capacity assessment of web opening steel girders by artifi
Current time: 05-24-2018, 07:05 AM
Users browsing this thread: 1 Guest(s)
Author: ssobhan
Last Post: ssobhan
Replies 0
Views 709

Lateral-torsional buckling capacity assessment of web opening steel girders by artifi
#1
Lateral-torsional buckling capacity assessment of web opening steel girders by artificial neural networks — elastic investigation

Author: Yasser Sharifi, Sajjad Tohidi | Size: 442 KB | Format: PDF | Quality: Original preprint | Publisher: Springer | Year: 2014 | pages: 11

[Image: 82125727895278560687.png]


[Image: info.png]

Abstract
Bridge girders exposed to aggressive environmental conditions are subject to time-variant changes in resistance. There is therefore a need for evaluation procedures that produce accurate predictions of the load-carrying capacity and reliability of bridge structures to allow rational decisions to be made about repair, rehabilitation and expected life-cycle costs. This study deals with the stability of damaged steel I-beams with web opening subjected to bending loads. A three-dimensional (3D) finite element (FE) model using ABAQUS for the elastic flexural torsional analysis of I-beams has been used to assess the effect of web opening on the lateral buckling moment capacity. Artificial neural network (ANN) approach has been also employed to derive empirical formulae for predicting the lateral-torsional buckling moment capacity of deteriorated steel I-beams with different sizes of rectangular web opening using obtained FE results. It is found out that the proposed formulae can accurately predict residual lateral buckling capacities of doubly-symmetric steel I-beams with rectangular web opening. Hence, the results of this study can be used for better prediction of buckling life of web opening of steel beams by practice engineers.

[Image: download.png]
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:

http://forum.civilea.com/thread-27464.html
***************************************



[Image: password.png]
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:

http://forum.civilea.com/thread-27464.html
***************************************




“His blue eyes are often bloodshot, and their expression indicates that there is a helpless, baffled soul squirming around inside this doughty fortress.” Prue by Alice Munro, ©1982.
[-] The following 10 users say Thank You to ssobhan for this post:
  • amindoxiti, malc, blaze, Mohammad6299, Dell_Brett, jcbv, subin91, warlord1, zrilek, slowet
Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
COMM. ON THE GUIDE FOR BUCKLING AND ULTIMATE STRENGTH ASSESSMENT FOR OFFSHORE STRUCT yanburak 0 1,235 09-19-2010, 07:13 AM
Last Post: yanburak



Users browsing this thread: 1 Guest(s)