Structural Engineering and Mechanics

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Incorporating nonstructural finish effects and construction quality in a performance-based framework for wood shearwall design

  • Kim, Jun Hee (Lochsa Engineering, Inc.) ;
  • Rosowsky, David V. (Department of Civil Engineering, Texas A&M University)
  • Received : 2004.11.26
  • Accepted : 2005.05.23
  • Published : 2005.09.10
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Abstract

This paper presents results from a study to extend a performance-based shearwall selection procedure to take into account the contributions of nonstructural finish materials (such as stucco and gypsum wallboard), construction quality issues, and their effects on the displacement performance of engineered wood shearwalls subject to seismic loading. Shearwall performance is evaluated in terms of peak displacements under seismic loading (characterized by a suite of ordinary ground motion records) considering different combinations of performance levels (drift limits) and seismic hazard. Shearwalls are analyzed using nonlinear dynamic time-history analysis with global assembly hysteretic parameters determined by fitting to actual shearwall test data. Peak displacement distributions, determined from sets of analyses using each of the ground motion records taken to characterize the seismic hazard, are postprocessed into performance curves, design charts, and fragility curves which can be used for risk-based design and assessment applications.

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References

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