560.761 Cold-Formed Steel Structures |
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Overview Cold-formed steel structures see broad use in civil engineering. The primary characteristic of such cold-formed steel structures; whether they be rack structures, buildings, or secondary systems in larger buildings, is that due to the use of thin sheet steel, stability must be addressed with great care. This course will provide the tools practicing engineers use to design these structures, including codes and specifications, software tools, and experimental methods. In addition, the course will go far beyond the typical practicing engineering implementations and delve into the origins of the design methods in current use, the theories which underpin modern analytical and computational tools used in exploring cold-formed steel behavior, and provide a thorough introduction to the research currently underway in cold-formed steel structures.
Course organization Part 1: Primarily focused on design, several homeworks, culminating in a mini-project Part 2: Focus on origins of design methods, underlying mechanics and theory, current research topics, etc., some homeworks, followed by a final project.
A word about background The course is open to all comers, completion of an undergraduate steel design course is nearly mandatory. Courses in advanced (matrix) analysis of structures, advanced steel design, structural stability, finite elements will all be helpful – but are not required. The instructor is aware that the student’s enrolled in the course have a wide variety of backgrounds – this may mean that some explanations offered in class will not be targeted to all students; however, sufficient material will be provided in the course that student’s will be able to readily complete homework, succeed on the mid-term, and complete a useful project. Specifically, expectations for undergraduate and graduate students in this course are different.
Other Details Course website: www.ce.jhu.edu/cfs Instructor: Ben Schafer, [email protected], 208 Latrobe Hall Office Hours: Open door policy, or by appointment ([email protected])
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Course links Dr.S.'s Library (password required) Course info (see Other Details) Class topics list (see below)
Cold-Formed Steel links Thin-walled Structures JHU Research Group American Iron and Steel Institute Cold-Formed Steel Engineers Institute
Steel Stud Manufacturers Association Center for Cold-Formed Steel Structures
ASCE-SEI Committee on Cold-Formed Steel
Journals commonly with CFS content Thin-walled Structures Journal of Constructional Steel Research Journal of Structural Engineering
Topics covered/class list 1. Overview and logisitics 2. Intro to CFS structures and into to FSM 3. FSM to DSM beginnings (&HW) 4. DSM for beams and columns (&HW) 5. Plate buckling and eff. width beginnings
6. Effective width and columns, L-G interaction 9. Global buckling determination and main Spec. (&HW) 10. Distortional buckling and edge stiffened elements 11. General Provisions (ASD, LRFD, Rational Eng. Analysis) 12. General Provisions Cont. (0.95t, fya, Rfy, w/t, curling) 13. Experimental CFS, column test in the lab - Design project 14. Main Spec. Ch. B Elements (elements not previously covered) 15. Main Spec. Ch. C Member (categorization, web crippling) 16. Main Spec. Ch. C Members Cont. (shear, combined states)
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