ifc:IfcBeamTypeEnum

<xs:simpleType name="IfcBeamTypeEnum">
  <xs:restriction base="xs:string">
    <xs:enumeration value="beam"/>
    <xs:enumeration value="joist"/>
    <xs:enumeration value="hollowcore"/>
    <xs:enumeration value="lintel"/>
    <xs:enumeration value="spandrel"/>
    <xs:enumeration value="t_beam"/>
    <xs:enumeration value="userdefined"/>
    <xs:enumeration value="notdefined"/>
  </xs:restriction>
</xs:simpleType>