{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://askcalculators.com/uk/steel-beam/schema.json",
  "title": "Simply Supported Steel Beam Screening Calculator — United Kingdom inputs",
  "description": "Check the arithmetic of an idealized simple beam with a specified section and uniformly distributed total load. GBP planning view; stated limitations apply.",
  "type": "object",
  "properties": {
    "unitSystem": {
      "title": "Measurement system",
      "type": "string",
      "default": "metric",
      "enum": [
        "imperial",
        "metric"
      ],
      "x-optionLabels": {
        "imperial": "Imperial (US gallons / short tons where relevant)",
        "metric": "Metric"
      }
    },
    "span": {
      "title": "Simply supported clear span",
      "type": "number",
      "description": "Illustrative starting value; replace with your own evidence.",
      "default": 4,
      "minimum": 0.01,
      "maximum": 1000000000000,
      "x-suffix": "m"
    },
    "uniformLoad": {
      "title": "Specified total uniform load",
      "type": "number",
      "description": "Illustrative starting value; replace with your own evidence.",
      "default": 10,
      "minimum": 0,
      "maximum": 1000000000000,
      "x-suffix": "kN/m"
    },
    "elasticModulus": {
      "title": "Material elastic modulus",
      "type": "number",
      "description": "Illustrative starting value; replace with your own evidence.",
      "default": 200,
      "minimum": 1,
      "maximum": 1000,
      "x-suffix": "GPa"
    },
    "sectionModulus": {
      "title": "Section modulus about bending axis",
      "type": "number",
      "description": "Illustrative starting value; replace with your own evidence.",
      "default": 500,
      "minimum": 0.001,
      "maximum": 1000000000000,
      "x-suffix": "cm³"
    },
    "secondMoment": {
      "title": "Second moment of area about bending axis",
      "type": "number",
      "description": "Illustrative starting value; replace with your own evidence.",
      "default": 10000,
      "minimum": 0.001,
      "maximum": 1000000000000,
      "x-suffix": "cm⁴"
    },
    "unitRate": {
      "title": "Material price per length unit",
      "type": "number",
      "description": "Zero means unpriced, not free. Enter a current, scoped supplier quote. Illustrative starting value; replace with your own evidence.",
      "default": 0,
      "minimum": 0,
      "maximum": 1000000000000,
      "x-prefix": "GBP",
      "x-suffix": "/m",
      "x-unit": "currency"
    },
    "laborCost": {
      "title": "Total labor allowance",
      "type": "number",
      "description": "Illustrative starting value; replace with your own evidence.",
      "default": 0,
      "minimum": 0,
      "maximum": 1000000000000,
      "x-step": 0.01,
      "x-prefix": "GBP",
      "x-unit": "currency"
    },
    "deliveryCost": {
      "title": "Delivery allowance",
      "type": "number",
      "description": "Illustrative starting value; replace with your own evidence.",
      "default": 0,
      "minimum": 0,
      "maximum": 1000000000000,
      "x-step": 0.01,
      "x-prefix": "GBP",
      "x-unit": "currency"
    },
    "otherCost": {
      "title": "Other fixed costs",
      "type": "number",
      "description": "Illustrative starting value; replace with your own evidence.",
      "default": 0,
      "minimum": 0,
      "maximum": 1000000000000,
      "x-step": 0.01,
      "x-prefix": "GBP",
      "x-unit": "currency"
    },
    "costMultiplier": {
      "title": "Material/labor multiplier",
      "type": "number",
      "description": "Use a verified regional index only when supplied. 1 is an unadjusted scenario, not a researched index. Illustrative starting value; replace with your own evidence.",
      "default": 1,
      "minimum": 0.1,
      "maximum": 10,
      "x-step": 0.01
    },
    "spreadPercent": {
      "title": "Low/high sensitivity around the entered total",
      "type": "number",
      "description": "Illustrative starting value; replace with your own evidence.",
      "default": 15,
      "minimum": 0,
      "maximum": 100,
      "x-step": 0.1,
      "x-unit": "percent"
    },
    "taxRate": {
      "title": "Explicit tax allowance",
      "type": "number",
      "description": "Illustrative starting value; replace with your own evidence.",
      "default": 0,
      "minimum": 0,
      "maximum": 100,
      "x-step": 0.1,
      "x-unit": "percent"
    }
  },
  "required": [
    "span",
    "uniformLoad",
    "elasticModulus",
    "sectionModulus",
    "secondMoment",
    "unitRate",
    "laborCost",
    "deliveryCost",
    "otherCost",
    "costMultiplier",
    "spreadPercent",
    "taxRate"
  ],
  "additionalProperties": false,
  "x-askcalculators": {
    "version": "20.16.0",
    "calculatorUrl": "https://askcalculators.com/uk/steel-beam/",
    "queryExample": "https://askcalculators.com/uk/steel-beam/?unitSystem=metric&span=4&uniformLoad=10&elasticModulus=200&sectionModulus=500&secondMoment=10000&unitRate=0&laborCost=0&deliveryCost=0&otherCost=0&costMultiplier=1&spreadPercent=15&taxRate=0",
    "migrationStatus": "new",
    "reviewStatus": "pending",
    "pageStatus": "live",
    "workStatus": "pending",
    "formula": {
      "expression": "M = wL²/8; V = wL/2; elastic stress = M/Z; deflection = 5wL⁴/(384EI).",
      "note": "Inputs are converted to canonical units before evaluating this stated formula."
    },
    "quality": {
      "availability": "live",
      "technicalReviewRecord": "/reviews/v20-uk-steel-beam.json",
      "qualifiedReview": "pending",
      "qualifiedReviewer": null,
      "qualifiedReviewDate": null,
      "formulaVersion": "20.16.0",
      "referenceCoverage": "references-listed",
      "releaseTestScope": "Catalog and regression checks are not a professional formula audit; consult release evidence.",
      "historicalMetadataDate": "",
      "historicalMetadataNotice": "The imported date is not evidence of a completed human review."
    },
    "outputs": {
      "moment": {
        "title": "Maximum bending moment",
        "type": "number",
        "x-format": "number",
        "x-digits": 2
      },
      "reaction": {
        "title": "Reaction at each simple support",
        "type": "number",
        "x-format": "number",
        "x-digits": 2
      },
      "stress": {
        "title": "Elastic bending stress",
        "type": "number",
        "x-format": "number",
        "x-digits": 2
      },
      "deflection": {
        "title": "Elastic midspan deflection",
        "type": "number",
        "x-format": "number",
        "x-digits": 2
      },
      "materialCost": {
        "title": "Material cost",
        "type": "number",
        "x-format": "currency",
        "x-currency": "GBP",
        "x-digits": 2
      },
      "laborCost": {
        "title": "Labor allowance",
        "type": "number",
        "x-format": "currency",
        "x-currency": "GBP",
        "x-digits": 2
      },
      "deliveryCost": {
        "title": "Delivery allowance",
        "type": "number",
        "x-format": "currency",
        "x-currency": "GBP",
        "x-digits": 2
      },
      "otherCost": {
        "title": "Other specified costs",
        "type": "number",
        "x-format": "currency",
        "x-currency": "GBP",
        "x-digits": 2
      },
      "tax": {
        "title": "Entered tax allowance",
        "type": "number",
        "x-format": "currency",
        "x-currency": "GBP",
        "x-digits": 2
      },
      "low": {
        "title": "Low cost scenario",
        "type": "number",
        "x-format": "currency",
        "x-currency": "GBP",
        "x-digits": 2
      },
      "mid": {
        "title": "Middle cost scenario",
        "type": "number",
        "x-format": "currency",
        "x-currency": "GBP",
        "x-digits": 2,
        "x-primary": true
      },
      "high": {
        "title": "High cost scenario",
        "type": "number",
        "x-format": "currency",
        "x-currency": "GBP",
        "x-digits": 2
      }
    }
  }
}