<xs:complexType name="IfcBuildingElementType">
    <xs:complexContent>
      <xs:extension base="uro:IfcElementType">
        <xs:sequence>
          <xs:element name="elementType" minOccurs="0" type="gml:CodeType"/>
          <xs:element name="predefinedType" minOccurs="0" type="gml:CodeType"/>
          <xs:element name="shapeType" minOccurs="0" type="gml:CodeType"/>
          <xs:element name="numberOfRiser" minOccurs="0" type="xs:integer"/>
          <xs:element name="numberOfTreads" minOccurs="0" type="xs:integer"/>
          <xs:element name="riserHeight" minOccurs="0" type="gml:LengthType"/>
          <xs:element name="treadLength" minOccurs="0" type="gml:LengthType"/>
          <xs:element name="operationType" minOccurs="0" type="uro:IfcTransportElementTypeEnum"/>
          <xs:element name="capacityByWeight" minOccurs="0" type="gml:MeasureType"/>
          <xs:element name="capacityByNumber" minOccurs="0" type="xs:integer"/>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>