IFC building model
Schema: "IFC4"

Units
  LENGTHUNIT: MILLI METRE
  AREAUNIT: SQUARE_METRE
  VOLUMEUNIT: CUBIC_METRE
  PLANEANGLEUNIT: DEGREE (conversion based)
  MASSUNIT: KILO GRAM
  MASSDENSITYUNIT: derived
  TIMEUNIT: SECOND
  FREQUENCYUNIT: HERTZ
  THERMODYNAMICTEMPERATUREUNIT: DEGREE_CELSIUS
  THERMALTRANSMITTANCEUNIT: derived
  VOLUMETRICFLOWRATEUNIT: derived
  ELECTRICCURRENTUNIT: AMPERE
  ELECTRICVOLTAGEUNIT: VOLT
  POWERUNIT: WATT
  FORCEUNIT: KILO NEWTON
  ILLUMINANCEUNIT: LUX
  LUMINOUSFLUXUNIT: LUMEN
  LUMINOUSINTENSITYUNIT: CANDELA
  USERDEFINED: derived "Luminous Efficacy"
  LINEARVELOCITYUNIT: derived
  PRESSUREUNIT: PASCAL
  USERDEFINED: derived "Friction Loss"

Spatial structure
IFCPROJECT
  IFCSITE
    IFCBUILDING
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW
      IFCBUILDINGSTOREY
        contains 161 elements
          1 x IFCSLAB | FLOOR
          32 x IFCCOLUMN | COLUMN
          64 x IFCWALL
          64 x IFCWINDOW | WINDOW