IfcMechanicalFastenerTypeEnum

Item	SPF	XML	Change	Description
IFC2x3 to IFC4
IfcMechanicalFastenerTypeEnum			ADDED

Semantic definitions at the type

Type definition

This enumeration defines the different types of mechanical fasteners.

HISTORY New Enumeration in IFC4.

Enumeration definition

Constant	Description
ANCHORBOLT	A special bolt which is anchored into conrete, stone, or brickwork.
BOLT	A threaded cylindrical rod that engages with a similarly threaded hole in a nut or any other part to form a fastener. The mechanical fastener often also includes one or more washers and one or more nuts.
DOWEL	A cylindrical rod that is driven into holes of the connected pieces.
NAIL	A thin pointed piece of metal that is hammered into materials as a fastener.
NAILPLATE	A piece of sheet metal with punched points that overlaps the connected pieces and is pressed into their material.
RIVET	A fastening part having a head at one end and the other end being hammered flat after being passed through holes in the pieces that are fastened together.
SCREW	A fastener with a tapered threaded shank and a slotted head.
SHEARCONNECTOR	A ring connector that is accepted by ring keyways in the connected pieces; or a toothed circular or square connector that is pressed into the connected pieces.
STAPLE	A doubly pointed piece of metal that is hammered into materials as a fastener.
STUDSHEARCONNECTOR	Stud shear connectors are cylindrical fastening parts with a head on one side. On the other side they are welded on steel members for the use in composite steel and concrete structures.
USERDEFINED	User-defined mechanical fastener.
NOTDEFINED	Undefined mechanical fastener.

Formal representations

XSD Specification

 <xs:simpleType name="IfcMechanicalFastenerTypeEnum">

  <xs:restriction base="xs:string">

   <xs:enumeration value="anchorbolt"/>

   <xs:enumeration value="bolt"/>

   <xs:enumeration value="dowel"/>

   <xs:enumeration value="nail"/>

   <xs:enumeration value="nailplate"/>

   <xs:enumeration value="rivet"/>

   <xs:enumeration value="screw"/>

   <xs:enumeration value="shearconnector"/>

   <xs:enumeration value="staple"/>

   <xs:enumeration value="studshearconnector"/>

   <xs:enumeration value="userdefined"/>

   <xs:enumeration value="notdefined"/>

  </xs:restriction>

 </xs:simpleType>

EXPRESS Specification


TYPE IfcMechanicalFastenerTypeEnum = ENUMERATION OF (

 ANCHORBOLT, 
 BOLT, 
 DOWEL, 
 NAIL, 
 NAILPLATE, 
 RIVET, 
 SCREW, 
 SHEARCONNECTOR, 
 STAPLE, 
 STUDSHEARCONNECTOR, 
 USERDEFINED, 
 NOTDEFINED);
END_TYPE;


 EXPRESS-G diagram