Canadian Seismic Design of Steel Structures
Design of Steel Structures of the Canadian Standards Association (CSA) governs the design of the majority of steel
structures in Canada. Clause 27 of the standard includes the earthquake design provisions for seismic force resisting
systems for which ductile seismic response is expected.
Technical changes and new requirements have been
incorporated in the 2009 edition of CSA ST6, including modifications of the expected material properties for HSS
members, consideration of protected zones, dennitions of brace probable compressive and tensile resistances for
capacity design and special requirements for braces intersecting columns between floors for concentrically braced
steel frames, new seismic provisions for buckling restrained braced steel frames, design and detailing requirements for
built-up tubular ductile links in eccentrically braced steel frames, changes to the requirements for ductile steel plate
walls and for plate walls with limited ductility, including allowances for perforations and corner cut-outs in infill plates,
and special provisions for steel frames of the Conventional Construction category above i5 m in height.
These modifications were developed in parallel with the 2010 National Building Code of Canada (NBCC).
The paper summarizes the new CSA S16-09 seismic design requirements with reference to NBCC 2010.
Download
*
Design of Steel Structures of the Canadian Standards Association (CSA) governs the design of the majority of steel
structures in Canada. Clause 27 of the standard includes the earthquake design provisions for seismic force resisting
systems for which ductile seismic response is expected.
Technical changes and new requirements have been
incorporated in the 2009 edition of CSA ST6, including modifications of the expected material properties for HSS
members, consideration of protected zones, dennitions of brace probable compressive and tensile resistances for
capacity design and special requirements for braces intersecting columns between floors for concentrically braced
steel frames, new seismic provisions for buckling restrained braced steel frames, design and detailing requirements for
built-up tubular ductile links in eccentrically braced steel frames, changes to the requirements for ductile steel plate
walls and for plate walls with limited ductility, including allowances for perforations and corner cut-outs in infill plates,
and special provisions for steel frames of the Conventional Construction category above i5 m in height.
These modifications were developed in parallel with the 2010 National Building Code of Canada (NBCC).
The paper summarizes the new CSA S16-09 seismic design requirements with reference to NBCC 2010.
Download
*
