Load and Resistance Factor Design
E504419
Load and Resistance Factor Design is a structural engineering design methodology that applies statistically calibrated load and resistance factors to ensure adequate safety and reliability in structures such as bridges.
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
limit states design method
ⓘ
structural design methodology ⓘ |
| abbreviation | LRFD NERFINISHED ⓘ |
| aimsTo |
control probability of failure
ⓘ
ensure structural reliability ⓘ ensure structural safety ⓘ |
| appliesTo |
bridges
ⓘ
buildings ⓘ foundations ⓘ highway structures ⓘ retaining structures ⓘ |
| basedOn |
probability theory
ⓘ
statistical calibration of loads and resistances ⓘ structural reliability theory ⓘ |
| calibrationMethod |
statistical analysis of load and resistance data
ⓘ
structural reliability calibration ⓘ |
| contrastsWith |
Allowable Stress Design
ⓘ
Working Stress Design ⓘ |
| designCheck | factored load effects ≤ factored resistance ⓘ |
| developedFor | consistent target reliability indices ⓘ |
| field | structural engineering ⓘ |
| hasComponent |
factored loads
ⓘ
factored resistances ⓘ limit states ⓘ load combinations ⓘ load factors ⓘ resistance factors ⓘ |
| loadFactorAccountsFor | uncertainty in loads ⓘ |
| objective |
achieve uniform reliability across structures
ⓘ
rationally distribute safety margins ⓘ |
| requires |
characteristic load models
ⓘ
characteristic material strengths ⓘ |
| resistanceFactorAccountsFor |
modeling uncertainty
ⓘ
uncertainty in construction quality ⓘ uncertainty in material strength ⓘ |
| safetyFormat | partial safety factor method ⓘ |
| usedIn |
AASHTO LRFD Bridge Design Specifications
NERFINISHED
ⓘ
geotechnical design codes ⓘ modern concrete design codes ⓘ modern steel design codes ⓘ |
| usesConcept |
extreme event limit state
ⓘ
factored resistance ⓘ fatigue limit state ⓘ load combination factors ⓘ load effect ⓘ nominal resistance ⓘ serviceability limit state ⓘ strength limit state ⓘ ultimate limit state ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.