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Worked example · Pro tool
Load Combination Generator: worked example
Ultimate and serviceability load combinations generated from dead, live and wind load cases.
ASCE/SEI 7-22 — Minimum Design Loads and Associated Criteria for Buildings and Other Structures · SI units · Calculator v1.0
These are the real results of the Load Combination Generator for the inputs below, read-only. Open the calculator with these values already loaded to change them.
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Inputs
| Self-weight + superimposed (D) — Dead | 50.00 kN |
| Occupancy / imposed (L) — Live | 30.00 kN |
| Wind (W) — Wind | 20.00 kN |
| SDS | 1.0 |
| Redundancy factor ρ | 1.0 |
| Reduced live load (0.5L option) | No |
| Lateral earth pressure H mode | unfavorable |
| Include temperature/shrinkage (T) | No |
LRFD — Strength design
| No. | Combination | Reference | Value | Governs |
|---|---|---|---|---|
| 1 | 1.4D | ASCE 7-16/22 §2.3.1 (1) | 70.00 kN | — |
| 2 | 1.2D + 1.6L | ASCE 7-16/22 §2.3.1 (2) | 108.00 kN | — |
| 4 | 1.2D + 1.0W + 1.0L | ASCE 7-16/22 §2.3.1 (4) | 110.00 kN | Max |
| 5 | 0.9D + 1.0W | ASCE 7-16/22 §2.3.1 (5) | 65.00 kN | — |
ASD — Allowable stress / serviceability
| No. | Combination | Reference | Value | Governs |
|---|---|---|---|---|
| 1 | 1.0D | ASCE 7-16/22 §2.4.1 (1) | 50.00 kN | — |
| 2 | 1.0D + 1.0L | ASCE 7-16/22 §2.4.1 (2) | 80.00 kN | — |
| 5 | 1.0D + 0.6W | ASCE 7-16/22 §2.4.1 (5) | 62.00 kN | — |
| 6 | 1.0D + 0.75L + 0.45W | ASCE 7-16/22 §2.4.1 (6) | 81.50 kN | Max |
| 7 | 0.6D + 0.6W | ASCE 7-16/22 §2.4.1 (7) | 42.00 kN | — |
Design basis and assumptions
- US mode: ASCE/SEI 7-22 §2.3 (strength, LRFD) and §2.4 (allowable stress) load combinations. National Annexes do not apply.
Example values for illustration only. Results are checked against a published validation suite; for real projects, have a licensed engineer review the results.