This section defines load combinations for design checks and load rating per AASHTO LRFD specifications.
Load combinations combine individual load cases with appropriate factors for different limit states (Strength, Service, Fatigue, etc.).
Result Extraction (From Stages)
Extract results from construction stages for combination
Design Load Combinations
Limit states, load combination tables, and rating tables
Non-composite Dead Load: Girder self-weight during erection
Composite Dead Load: Deck, barriers, and wearing surface
Live Load: HL-93 with dynamic allowance
Wind Load: Structure and live load wind effects
Temperature: Uniform temperature change effects
Strength I
Basic load combination without wind
Strength III
Load combination with wind
Service I
Normal operational loads
Service II
Steel yield control
Fatigue
Repetitive live load cycles
Last updated 3 months ago