Remaining capacity assessment of corrosion damaged column bases

Hu, B, Chan, R and Li, C 2016, 'Remaining capacity assessment of corrosion damaged column bases', in Nader Ghafoori, Peter Claisse, Eshmaiel Ganjian, Tarun R. Naik (ed.) Proceedings of the 4th International Conference on Sustainable Construction Materials and Technologies (SCMT4), Nevada, United States, 7-11 August 2016, pp. 1745-1752.


Document type: Conference Paper
Collection: Conference Papers

Title Remaining capacity assessment of corrosion damaged column bases
Author(s) Hu, B
Chan, R
Li, C
Year 2016
Conference name SCMT4
Conference location Nevada, United States
Conference dates 7-11 August 2016
Proceedings title Proceedings of the 4th International Conference on Sustainable Construction Materials and Technologies (SCMT4)
Editor(s) Nader Ghafoori, Peter Claisse, Eshmaiel Ganjian, Tarun R. Naik
Publisher CreateSpace
Place of publication Seattle, United States
Start page 1745
End page 1752
Total pages 9
Abstract Steel column base plates are integral parts in steel structures. They are widely used in foundations of various types of structures such as building frames, bridges, transmission towers, light poles and road signs. They spread column forces over a larger contact area and transfer forces to anchor bolts and cementitious grout beneath them. However, gradual thinning of base plates due to corrosion damage reduces their load bearing capacity and subsequently jeopardises the structural integrity of the entire structure. This paper presents a remaining capacity assessment method for steel column bases derived analytically based on a time-dependent corrosion rate model and the yield-line theory. Time dependent moment capacity of base plates is derived analytically as a function of time and geometric parameters of the plate. Solution to a wide-flange-section-to-column-base plate connection subjected to major axis bending moment is presented. Results of the analytical expression are compared to a three-dimensional nonlinear finite element model and good agreement is obtained. The proposed model may contribute to the prediction of remaining strength and repair schedule of corroded steel column bases.
Subjects Structural Engineering
Keyword(s) Remaining Capacity
Corrosion
steel structures
Copyright notice © 2016 Editors CreateSpace. All rights reserved.
ISBN 9781543112016
Versions
Version Filter Type
Access Statistics: 146 Abstract Views  -  Detailed Statistics
Created: Thu, 25 Aug 2016, 08:49:00 EST by Catalyst Administrator
© 2014 RMIT Research Repository • Powered by Fez SoftwareContact us