DS5 Structures Poster

1

• Time-history Analysis by ZEUS-NL program

• Objective of the study
• This study describe a sensitivity study of the
  potentially significant parameters which
  influence seismic response of LCMF structures
  across Memphis, TN located in the Central United
  States.
• The sensitivity study is necessary to efficiently
  perform the regional seismic assessment of LCMF
  structures using fragility curves in conjunction
  with response surface metamodels (RSMs) which
  are conditional cumulative distribution functions
  that define the exceedance probability of a
  damage state for a given ground motion intensity
  level.
• Outlines of the study
• Plackett-Burman design
• LCMF structures design
• Time-history Analysis by ZEUS-NL program
• Statistical Analysis
• Conclusions

Inventoried Bldgs Shelby County
Peak Inter-story Drift
Peak Global Drift
Damage Measure - Peak Drift

• Plackett-Burman design

• LCMF structure design

• Drawings of the case 12 (LCMF structure)

• Potential parameters

• Statistical Analysis

• Pareto Plot of Estimates

Peak Global Drift
Peak Inter-story Drift

• External frame beam and shear design details

• Sample of Plackett-Burman simulation

• Conclusions
• Significant parameters are earthquake intensity,
  number of story, damping coefficient, concrete
  compressive strength, the first story height,
  earthquake loading direction, design provision,
  and eccentricity.
• The determined parameters will be used to create
  efficient response surface metamodels that are
  incorporated with probability concepts to perform
  the seismic fragility assessment of the
  populations for LCMF structures.