Cold-Formed Effective Width Calculator
Named Winter effective-width reductionρ=1 forλ≤.673 else(1−.22/λ)/λ, independently verified uniform-compression plate branch; not all cold-formed code rules. Caller independently establishes units, regime, calibration and applicability; this does not establish design-code compliance, authenticity, operational safety, treatment efficacy or a validated forecast.
Description
Effective plate width reduces a slender plate's modeled contribution.
Effective plate width reduces a slender plate's modeled contribution.1
The supplied nondimensional slenderness must match the adopted Winter-type relation. Use Cold-Formed Effective Width Calculator to evaluate the supplied inputs under the specific model below.
When to use Cold-Formed Effective Width Calculator
Use Cold-Formed Effective Width Calculator to evaluate the supplied inputs under the specific model below. Establish the units, measurement scope and applicable model or recipe assumptions before entering values.
How to use Cold-Formed Effective Width Calculator and understand its results
- Establish the units, measurement scope and applicable model or recipe assumptions before entering values.
- Enter Caller plate nondimensional slenderness, Gross plate widths m using the field table and validation rules below, then run the tool.
- Read Winter effective plate widths m and interpret units, signs, ordering and placeholders as explained below.
- If the tool reports an input error, correct that field and rerun. A successful false result, empty match list or unknown-evidence placeholder has the specific meaning described here; check the limitations before applying the result.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| callerPlateNondimensionalSlenderness | Caller plate nondimensional slenderness | array of number | Required; constraints below |
| grossPlateWidthsM | Gross plate widths m | array of number | Required; constraints below |
Enter aligned nonempty positive nondimensional slendernesses λ and gross widths in m. Width is unchanged at λ≤0.673; above that boundary apply (1−0.22/λ)/λ. The output preserves plate order and relies on the caller's definition of slenderness and applicable effective-width model.
effectiveWidth = grossWidth×[1 if λ≤0.673, otherwise (1−0.22/λ)/λ] Field order, units and branch conditions follow the implementation explanation above.
| Output field | Meaning | Value type |
|---|---|---|
| winterEffectivePlateWidthsM | Winter effective plate widths m | array of number |
{
"input": {
"callerPlateNondimensionalSlenderness": [
0.5,
1,
2
],
"grossPlateWidthsM": [
1,
1,
1
]
},
"output": {
"winterEffectivePlateWidthsM": [
1,
0.78,
0.445
]
}
}Limitations and assumptions
The supplied nondimensional slenderness must match the adopted Winter-type relation. Apply the exact scope and assumptions described above.
All listed fields require explicit values. Unexpected fields, incorrect types, nonfinite numbers and sparse arrays fail validation. Domain-specific bounds, alignments and supported tokens are stated above; extremely large inputs or outputs can also be rejected. These errors differ from successful results such as false, no matches or unknown evidence.
Alternative or Complementary methods
Use RC Crack Width Calculator for a related task: A crack-width model multiplies crack spacing by a relative strain measure.
Use Composite Beam Neutral Axis Calculator for a related task: A composite neutral axis weights layer positions by axial stiffness.
References
-
Cold-Formed Effective Width Calculator — tool.io
Similar or alternative tools
- RC Crack Width Calculator
A crack-width model multiplies crack spacing by a relative strain measure.
- Composite Beam Neutral Axis Calculator
A composite neutral axis weights layer positions by axial stiffness.