Seismic demand of moderately ductile reinforced concrete shear walls subjected to high-frequency ground motions

A parametric study was performed to examine the seismic behaviour of moderately ductile (MD) reinforced concrete shear walls designed according to Canadian code provisions, including National Building Code of Canada (NBCC) 2010 and Canadian Standards Association (CSA) 23.3-04, when subjected to typical high-frequency eastern North America earthquakes. The numerical models were experimentally validated based on large specimens shaking table test results. The results obtained following the code response spectrum procedure were compared with the results from inelastic response history analyses to investigate the effect of higher modes on seismic force demands. The results indicate that current code provisions for MD shear walls need to be modified. A new base shear factor and shear force design envelop are proposed to evaluate the seismic shear force demand more realistically. This study also recommends that the current CSA 23.3-04 requirements for ductile shear walls for bending moments could be applied to ...

[1]  Marwan T. Shedid,et al.  Experimental evaluation of the seismic performance of reinforced concrete structural walls with different end configurations , 2015 .

[2]  Ravishankar K. Iyer,et al.  Experimental evaluation , 1995 .

[3]  Mervyn J. Kowalsky,et al.  Displacement-based seismic design of structures , 2007 .

[4]  G. Atkinson.  Earthquake time histories compatible with the 2005 National building code of Canada uniform hazard spectrum , 2009 .

[5]  PaultrePatrick,et al.  Seismic force demand on ductile reinforced concrete shear walls subjected to western North American ground motions: Part 1 — parametric study , 2012 .

[6]  Arthur H. Nilson,et al.  Design of concrete structures , 1972 .

[7]  Patrick Paultre,et al.  Seismic force demand on ductile reinforced concrete shear walls subjected to western North American ground motions: Part 2 — new capacity design methods , 2012 .

[8]  Tatjana Isaković,et al.  Seismic shear force magnification in RC cantilever structural walls, designed according to Eurocode 8 , 2011, Bulletin of Earthquake Engineering.

[9]  Pierre Léger,et al.  Numerical Modeling of Slender Reinforced Concrete Shear Wall Shaking Table Tests Under High-Frequency Ground Motions , 2013 .

[10]  T. Paulay,et al.  Seismic Design of Reinforced Concrete and Masonry Buildings , 1992 .

[11]  Pierre Léger,et al.  Shake Table Testing of Slender RC Shear Walls Subjected to Eastern North America Seismic Ground Motions , 2012 .

[12]  A. Rutenberg,et al.  The Seismic Shear Demand in Ductile Cantilever Wall Systems and the EC8 Provisions , 2006 .