Aashto Load Factors: STRENGTH_I to STRENGTH_V
AASHTO LRFD Bridge Design Specification load factors and load combinations per Table 3.4.1-1 (9th Edition 2020) — Strength I-V, Service I-IV, Fatigue I-II, Extreme Event I-II
| limit state | dc max (dimensionless) | dc min (dimensionless) | dw max (dimensionless) | dw min (dimensionless) | ll im (dimensionless) | notes | se | tg | tu cr sh max (dimensionless) | tu cr sh min (dimensionless) | wa (dimensionless) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| STRENGTH_I | 1.25 | 0.9 | 1.5 | 0.65 | 1.75 | Basic load combination for normal use of bridge | gamma_SE | gamma_TG | 1.2 | 0.5 | 1 |
| STRENGTH_II | 1.25 | 0.9 | 1.5 | 0.65 | 1.35 | Owner-specified special design vehicle or permit loads | gamma_SE | gamma_TG | 1.2 | 0.5 | 1 |
This is a sample. Search the full aashto load factors dataset and 300+ more by creating a free account and accessing the database.
Get started for FREE