IfcBeamTypeEnum

类型定义

此枚举定义不同预定义类型的梁，这些梁可以进一步指定IfcBeam或IfcBeamType。

IFC2x2中的新枚举类型。

IFC4添加了枚举器HOLLOWCORE和SPANDREL。

Enumeration definition

Constant	Description
BEAM	A standard beam usually used horizontally.
JOIST	A beam used to support a floor or ceiling.
HOLLOWCORE	A wide often prestressed beam with a hollow-core profile that usually serves as a slab component.
LINTEL	A beam or horizontal piece of material over an opening (e.g. door, window).
SPANDREL	A tall beam placed on the facade of a building. One tall side is usually finished to provide the exterior of the building. Can be used to support joists or slab elements on its interior side.
T_BEAM	A beam that forms part of a slab construction and acts together with the slab which its carries. Such beams are often of T-shape (therefore the English name), but may have other shapes as well, e.g. an L-Shape or an Inverted-T-Shape.
USERDEFINED	User-defined linear beam element.
NOTDEFINED	Undefined linear beam element.

EXPRESS Specification

TYPE IfcBeamTypeEnum = ENUMERATION OF (
 BEAM,
 JOIST,
 HOLLOWCORE,
 LINTEL,
 SPANDREL,
 T_BEAM,
 USERDEFINED,
 NOTDEFINED);
END_TYPE;

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标签：used,beam,BEAM,IfcBeamTypeEnum,usually,slab
From： https://www.cnblogs.com/herd/p/17912546.html