共享构建元素（ifcsharedbldgeelements）定义IfcBuildingElement的子类型，该子类型在IfcProductExtension中定义。这些子类型是构成建筑结构建筑设计的主要元素。
元素（如墙、梁、柱、板、屋顶、楼梯、坡道、窗、门和覆盖物）是原始建筑（或骨架）的主要组件，是项目数据交换的中心。对于这些元素中的每一个，都提供了一个几何使用定义，该定义介绍了元素可用形状表示类型的正确应用。
Types
1 IfcBeamTypeEnum (梁类型枚举)
2 IfcBuildingElementProxyTypeEnum (建筑元素属性类型枚举)
3 IfcBuildingSystemTypeEnum (建筑系统类型枚举)
4 IfcChimneyTypeEnum
5 IfcColumnTypeEnum
6 IfcConnectionTypeEnum
7 IfcCoveringTypeEnum
8 IfcCurtainWallTypeEnum
9 IfcDoorTypeEnum
10 IfcDoorTypeOperationEnum
11 IfcMemberTypeEnum
12 IfcPlateTypeEnum
13 IfcRailingTypeEnum
14 IfcRampFlightTypeEnum
15 IfcRampTypeEnum
16 IfcRoofTypeEnum
17 IfcShadingDeviceTypeEnum
18 IfcSlabTypeEnum
19 IfcStairFlightTypeEnum
20 IfcStairTypeEnum
21 IfcWallTypeEnum
22 IfcWindowTypeEnum
23 IfcWindowTypePartitioningEnum
Entities
1 IfcBeam
2 IfcBeamStandardCase
3 IfcBeamType
4 IfcBuildingElementProxy
5 IfcBuildingElementProxyType
6 IfcBuildingSystem
7 IfcChimney
8 IfcChimneyType
9 IfcColumn
10 IfcColumnStandardCase
11 IfcColumnType
12 IfcCovering
13 IfcCoveringType
14 IfcCurtainWall
15 IfcCurtainWallType
16 IfcDoor
17 IfcDoorStandardCase
18 IfcDoorType
19 IfcMember
20 IfcMemberStandardCase
21 IfcMemberType
22 IfcPlate
23 IfcPlateStandardCase
24 IfcPlateType
25 IfcRailing
26 IfcRailingType
27 IfcRamp
28 IfcRampFlight
29 IfcRampFlightType
30 IfcRampType
31 IfcRelConnectsPathElements
32 IfcRelCoversBldgElements
33 IfcRelCoversSpaces
34 IfcRoof
35 IfcRoofType
36 IfcShadingDevice
37 IfcShadingDeviceType
38 IfcSlab
39 IfcSlabElementedCase
40 IfcSlabStandardCase
41 IfcSlabType
42 IfcStair
43 IfcStairFlight
44 IfcStairFlightType
45 IfcStairType
46 IfcWall
47 IfcWallElementedCase
48 IfcWallStandardCase
49 IfcWallType
50 IfcWindow
51 IfcWindowStandardCase
52 IfcWindowType
Property Sets
1 Pset_BeamCommon
2 Pset_BuildingElementProxyCommon
3 Pset_BuildingElementProxyProvisionForVoid
4 Pset_BuildingSystemCommon
5 Pset_ChimneyCommon
6 Pset_ColumnCommon
7 Pset_CoveringCeiling
8 Pset_CoveringCommon
9 Pset_CoveringFlooring
10 Pset_CurtainWallCommon
11 Pset_DoorCommon
12 Pset_DoorWindowGlazingType
13 Pset_MemberCommon
14 Pset_PlateCommon
15 Pset_RailingCommon
16 Pset_RampCommon
17 Pset_RampFlightCommon
18 Pset_RoofCommon
19 Pset_ShadingDeviceCommon
20 Pset_SlabCommon
21 Pset_StairCommon
22 Pset_StairFlightCommon
23 Pset_WallCommon
24 Pset_WindowCommon
Quantity Sets
1 Qto_BeamBaseQuantities
2 Qto_ChimneyBaseQuantities
3 Qto_ColumnBaseQuantities
4 Qto_CoveringBaseQuantities
5 Qto_CurtainWallQuantities
6 Qto_DoorBaseQuantities
7 Qto_MemberBaseQuantities
8 Qto_PlateBaseQuantities
9 Qto_RailingBaseQuantities
10 Qto_RampFlightBaseQuantities
11 Qto_RoofBaseQuantities
12 Qto_SlabBaseQuantities
13 Qto_StairFlightBaseQuantities
14 Qto_WallBaseQuantities
15 Qto_WindowBaseQuantities