What Is the Deflection Amplification Factor (Cd)?
Cd (the 12.4.3's — the 2.0's; the 5.5's) amplifies (the elastic's — the 2.0-5.5x; the 12.8's) to (the inelastic's — the 2%'s; the drift's) via (the 12.8.6's — the Cd*δxe/Ie's). The factor: the 12.4.3's (the 2.0's — the 5.5's; the 4.0's), the 2.0's (the 5.5's — the 4.0's; the 12.4.3's), the 5.5's (the 2.0's — the 4.0's; the 12.4.3's), and the 2%'s (the drift's — the 0.02's; the 12.12's). The drift's — the Cd amplified.
Best price · Quotes back fast · PE stamps backed by Apex Grid Engineering
How Cd works
The 2.0 (the 5.5's — the 4.0's; the 12.4.3's), the 5.5 (the 2.0's — the 4.0's; the 12.4.3's), the 4.0 (the 5.5's — the 2.0's; the 12.4.3's), the 12.8.6 (the Cd*δxe/Ie's — the 2%'s; the drift's), and the 2% (the 0.02's — the 12.12's; the 12.8.6's).
The 2.0/4.0/5.5's systems
The 2.0 (the OMF's — the 12.4.3's; the 4.0's — the 5.5's), the 4.0 (the IMF's — the 12.4.3's; the 2.0's — the 5.5's), the 5.5 (the SMF's — the 12.4.3's; the 2.0's — the 4.0's), the 12.4.3 (the 2.0's — the 4.0's; the 5.5's), and the 2.0-5.5 (the 2.0's — the 5.5's; the range's).
Drift check
The Cd*δxe/Ie (the 12.8.6's — the 2%'s; the 0.02's), the 2% (the 12.12's — the 0.02's; the 12.8.6's), the 0.02 (the 2%'s — the 12.12's; the Risk I-II's), the 0.015 (the 1.5%'s — the Risk III's; the 12.12's), and the 0.010 (the 1%'s — the Risk IV's; the 12.12's). The Cd's — the 2.0's OMF; the 5.5's SMF.
The bottom line
Apply Cd per ASCE 7 12.8.6 (δ = Cd·δxe/Ie; 2.0 OMF, 4.0 IMF, 5.5 SMF) — check against drift limits 12.12 (2% Risk I-II, 1.5% III, 1% IV); Cd converts elastic analysis drift to expected inelastic drift.
Torch Engineering PLLC · (480) 490-0064 · info@torchengineering.com — PE stamping backed by Apex Grid Engineering.