IFC 4.3.2.20251031 (IFC4X3_ADD2) under development

4.1.10.2 Resource Quantity

资源可以根据基本数量定义,其中分配的任务消耗相对于输出数量的该数量的资源。

对于人工和设备等基于工作的资源,数量基于时间。对于基于产品的资源,数量基于计数。对于基于材料的资源,数量基于体积。

下图展示了应用此概念时使用的通用类和关系。 此外,概念可能对常见或标准化的行业实践和场景具有特殊意义。对于这些特定的使用场景,下表展示了用户可采用的推荐通用使用模式列表。

G <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcConstructionResource.htm'>IfcConstructionResource</a> IfcConstructionResource 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1]      HasAssignments [0:?]      Nests [0:1]      IsNestedBy [0:?]      HasContext [0:1]      IsDecomposedBy [0:?]      Decomposes [0:1]      HasAssociations [0:?] 5. ObjectType [0:1]      IsDeclaredBy [0:1]      Declares [0:?]      IsTypedBy [0:1]      IsDefinedBy [0:?] 6. Identification [0:1] 7. LongDescription [0:1]      ResourceOf [0:?] 8. Usage [0:1] 9. BaseCosts [1:?] QuantityType 10. BaseQuantity [0:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPhysicalSimpleQuantity.htm'>IfcPhysicalSimpleQuantity</a> IfcPhysicalSimpleQuantity QuantityName 1. Name [1:1] 2. Description [0:1]      HasExternalReferences [0:?]      PartOfComplex [0:1] 3. Unit [0:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcConstructionResource.htm'>IfcConstructionResource</a>:BaseQuantity1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPhysicalSimpleQuantity.htm'>IfcPhysicalSimpleQuantity</a>:IfcPhysicalSimpleQuantity0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcLabel.htm'>IfcLabel</a> IfcLabel <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPhysicalSimpleQuantity.htm'>IfcPhysicalSimpleQuantity</a>:Name1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcLabel.htm'>IfcLabel</a>:IfcLabel0
Figure 4.1.10.2.A

General Usage

ApplicableEntity
QuantityType
IfcConstructionResource.BaseQuantity
QuantityName
IfcPhysicalSimpleQuantity.Name
IfcConstructionEquipmentResourceIfcQuantityTime Operation
IfcConstructionMaterialResource IfcQuantityVolume GrossVolume
IfcConstructionProductResource IfcQuantityCount Product
IfcLaborResource IfcQuantityTime Labor
表 4.1.10.2.B