{
 "schema": "spawner-tool/v1",
 "id": "bot_022",
 "name": "Schneelast berechnen – Statik für Bauwerke",
 "description": "Berechnen Sie die Schneelast auf Dächern und Flächen nach Schweizer Normen. Eingaben: Grundschneelast, Form‑, Wärme‑ und Neigungs­faktor. Schnell Ergebnis in kN/m².",
 "url": "https://fachrechner.com/de/schneelast-berechnen-statik/",
 "spec_url": "https://fachrechner.com/de/schneelast-berechnen-statik/spec.json",
 "language": "de",
 "market": "CH",
 "live_since": null,
 "inputs": [
  {
   "id": "grundschneelast",
   "label": "Grundschneelast (s_k)",
   "unit": "kN/m²",
   "min": 0.0,
   "max": 5.0,
   "step": 0.01,
   "default": 0.8
  },
  {
   "id": "formkoeffizient",
   "label": "Formkoeffizient (μ)",
   "unit": "",
   "min": 0.1,
   "max": 2.0,
   "step": 0.01,
   "default": 0.8
  },
  {
   "id": "waermekoeffizient",
   "label": "Wärme­koeffizient (c_t)",
   "unit": "",
   "min": 0.3,
   "max": 1.5,
   "step": 0.01,
   "default": 1.0
  },
  {
   "id": "neigungsfaktor",
   "label": "Neigungsfaktor (i)",
   "unit": "",
   "min": 0.5,
   "max": 1.2,
   "step": 0.01,
   "default": 0.9
  }
 ],
 "constants": [],
 "outputs": [
  {
   "id": "schneelast",
   "label": "Schneelast",
   "unit": "kN/m²",
   "decimals": 3,
   "expression": "grundschneelast * formkoeffizient * waermekoeffizient * neigungsfaktor"
  }
 ],
 "formula": "s = s_k · μ · c_t · i",
 "expression_language": {
  "name": "safeexpr",
  "syntax": "Python arithmetic subset: + - * / ** %, parentheses, numbers, input/constant ids and ids of earlier outputs, functions abs sqrt log log10 exp floor ceil sin cos tan min max round(x,n), constants pi e, conditionals (a if x > y else b)",
  "semantics": "% is fmod; round() rounds half away from zero; outputs are evaluated in the listed order"
 },
 "example": {
  "inputs": {
   "grundschneelast": 0.8,
   "formkoeffizient": 0.8,
   "waermekoeffizient": 1.0,
   "neigungsfaktor": 0.9
  },
  "outputs": {
   "schneelast": 0.576
  }
 },
 "verification": "formula checked against independent test vectors; browser JS equals the reference evaluator",
 "commercial_action": {
  "type": "product_search",
  "label": "Geeignete Bauteile suchen",
  "product_category": "Tragwerksbauteile",
  "store": "eBay.ch",
  "query_template": "Schneelast {schneelast} kN/m² Träger",
  "search_url_template": "https://www.ebay.ch/sch/i.html?_nkw={q}",
  "example": {
   "query": "Schneelast 0,576 kN/m² Träger",
   "url": "https://www.ebay.ch/sch/i.html?_nkw=Schneelast%200%2C576%20kN/m%C2%B2%20Tr%C3%A4ger"
  },
  "bom": [
   {
    "slot": 1,
    "kind": "primary",
    "label": "Passend zum Ergebnis (Normgröße)",
    "query_template": "Schneelast {schneelast} kN/m² Träger",
    "standard_size_step": 0,
    "search_url_template": "https://www.ebay.ch/sch/i.html?_nkw={q}",
    "example": {
     "query": "Schneelast 0,576 kN/m² Träger",
     "url": "https://www.ebay.ch/sch/i.html?_nkw=Schneelast%200%2C576%20kN/m%C2%B2%20Tr%C3%A4ger"
    }
   },
   {
    "slot": 2,
    "kind": "accessory",
    "label": "Montagezubehör / Messgerät",
    "query_template": "Schneelast Messgerät",
    "standard_size_step": 0,
    "search_url_template": "https://www.ebay.ch/sch/i.html?_nkw={q}",
    "example": {
     "query": "Schneelast Messgerät",
     "url": "https://www.ebay.ch/sch/i.html?_nkw=Schneelast%20Messger%C3%A4t"
    }
   }
  ],
  "standard_series": null,
  "affiliate": false,
  "rel": "sponsored nofollow",
  "note": "Parts list (bom) in display order. Replace {placeholders} in query_template with the user's computed values (inputs or outputs); for placeholders listed in standard_series use the smallest series value >= the computed value, then move standard_size_step positions up the series; URL-encode the query and substitute {q} in search_url_template."
 },
 "api": {
  "endpoint": "https://fachrechner.com/api/v1/calc/bot_022",
  "method": "GET",
  "parameters": "input ids as query parameters (missing = default); response JSON with outputs",
  "free_calls_per_day": 10,
  "auth": null,
  "on_limit": "HTTP 402 daily_limit_reached (no paid tier; quota resets 00:00 UTC, Retry-After)",
  "pro_checkout": null,
  "expression_tree": "https://fachrechner.com/m2m/bot_022.json"
 }
}