CPC794 - Design of Cold-Formed Steel Structures Exposed to Fire

Objetivos

This course has as main objective to offer theoretical and practical knowledge that allows students to develop a set of skills useful in the design of thin walled cold formed steel sections exposed to fire conditions. As part of the main object, it included finding out actual steel temperatures, how it varies across the steel section and the effect on the load bearing resistance. Moreover, with this information a method for designing such thin walled cold formed steel sections and frames will be developed, accounting the application of numerical FEM (Finite Element Method) and GBT (Generalised Beam Theory) analyses.

Ementa (Syllabus)

  1.  Elastic buckling behavior at ambient and elevated temperatures – by FEM and Generalized Beam Theory (GBT) formulation.
  2. Modeling of CFS members - influence of temperature.
  3. Variation of temperature distribution on cross-section.
  4. Ultimate resistance and collapse failure mode.
  5. Design rules

Bibliografia (Bibliography

 

Schafer B., Review: the Direct Strength Method of cold-formed steel member design, J.Const. Steel Res., 64(7-8), 766-788, 2008.
[2] Swanson Analysis Systems, ANSYS Reference Manual, 2004.
[3] Ranawaka T., Mahendran M., Distortional buckling tests of cold-formed steel compression members at elevated temperatures, Journal of Consructional Steel Research, 65(2), pp.249-259, 2009.
[4] Eurocode 1: Actions on Structures - Part 1-2: General Actions – Actions on Structures Exposed to Fire, Brussels, 2002.
[5] Eurocode 3: Design of Steel Structures - Part 1-2: General Rules – Structural Fire Design, Brussels, 2005.
[6] NAS (2012). North American Specification for the Design of Cold-Formed Steel Structural Members (AISI-S100-12), American Iron and Steel Institute (AISI), Washington, DC.
[7] Shahbazian A, Wang YC (2014). A fire resistance design method for thin-walled steel studs in wall panel constructions exposed to parametric fires, Thin-Walled Structures, 77(April), 67-76.

 

Professor

Alexandre Landesmann

 

Créditos / CH (Credits/ Workload)

3.0 / 45h 

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