Selvaraj, Sivaganesh and Madhavan, Mahendrakumar
(2017)
Geometric imperfection measurements on cold-formed steel channels: An approach using 3D non-contact laser scanner.
ce/papers, 1 (2-3).
pp. 1657-1666.
ISSN 2509-7075
Full text not available from this repository.
(
Request a copy)
Abstract
A 3D non-contact laser scanning method to quantify the deviations in cold-formed steel (CFS) channel sections (plain and lipped) is presented. The methodologies to segregate the different categories of imperfections from the deviations in the geometry of CFS member are also presented. A total of 13 different C-sections with varying cross-sectional parameters totaling to 78 specimens were studied. The nature of imperfections in the CFS members was found to correlate with the geometric properties such as slenderness ratios, torsional constant and plate slenderness. The bow and camber imperfection (global out-of-straightness) in the members is presented with respect to the minor and major axis slenderness ratios. A new combined global and cross-sectional parameter (J/L) was introduced against the deviation due to twist of the CFS member. To predict the imperfection magnitudes based on their geometrical properties, a new set of expressions were suggested.
Actions (login required)
 |
View Item |
Altmetric
Altmetric