Project Objective:

• To determine the natural trend of the geometric imperfections and categorize it

• Formulate the trend of the geometric imperfection in the form of mathematical expression

Existing Design Specifications:

AISI (American Iron and Steel Institute) (2015). “North American standard for cold-formed steel structural farming.” AISI S240-2015. Washington, DC. 

Parameters considered:

Various slenderness of the cold-formed steel members (various length and cross-section dimensions)

Nature of the work:

Three-dimensional scanning | Development of mathematical expression to predicting the geometric imperfection technique

Total number of CFS specimens scanned : 188 

International Journal Publications:

1. Geometric Imperfection Measurements and Validations on Cold-Formed Steel Channels Using 3D Noncontact Laser Scanner.

Sivaganesh Selvaraj and Madhavan, M., (2018). Journal of Structural Engineering (ASCE), 144(3), 04018010. Link