aashto t-18 bridge management , evaluation and rehabilitation

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30° T –18 Update (Continued) ‣ New Gusset Plate Rating Provisions 1. Revised variables for shear resistance, Ω (shear reduction factor) and vy (resistance factor for shear yeilding) 2. New provisions for compression resistance, revised Whitmore Width derived from 30 degree angles and L mid Whitmore Width Lmid 30°
T –18 Update (Continued) ‣ New Gusset Plate Rating Provisions 3. New resistance factor for block shear 4. New tension and compression chord splice checks 5. Based on reliability of factor ß of 3.5 for Inventory Rating and 2.5 for Operating Rating
Page 1 and 2: AASHTO T‐18 BRIDGE MANAGEMENT , E
Page 3 and 4: T -18 Update • What is T‐18 •
Page 5 and 6: T -18 Update (Continued)
Page 7 and 8: T -18 Update (Continued) • Revise
Page 9 and 10: T -18 Update (Continued) Article 1.
Page 11 and 12: T -18 Update (Continued) Ballot Ite
Page 13 and 14: T -18 Update (Continued) Ballot Ite
Page 15: T -18 Update (Continued) ‣ New Gu
Page 19 and 20: T -18 Update (Continued) • Other
Page 21 and 22: T -18 Update (Continued) Why Update
Page 23 and 24: T -18 Update (Continued) Recap of A
Page 25 and 26: AASHTO Guide Manual for Bridge Elem
Page 27 and 28: New AASHTO Manual for Bridge Elemen
Page 35 and 36: What’s in the future for the T‐

aashto t-18 bridge management , evaluation and rehabilitation

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