4.7 FNDBLOCK
Foundation blocks are materials within the two-dimensional domain beyond those defined by the slab and wall SURFACEs. Each block is represented as a rectangle in the domain by specifying the X (lateral) and Z (vertical) coordinates of two opposite corners. The coordinate system for each point is relative to the X and Z references defined by the user. As a convention The positive X direction is away from the building, and the positive Z direction is down.
Options for X and Z references are illustrated in the figure below.
![Foundation block references](media/fd_refs.png)
The default reference is WALLINT, WALLTOP.
An example of defining a block for interior wall insulation is shown below. Here the two points defining the block (P1 and P2) are both shown relative to their reference points (Ref1 and Ref2, respectively).
![Foundation block example](media/fd_block.png)
Note: X and Z point values of zero imply that a point is the same as the reference point. The default for X and Z point values is zero since points will often align with one or both of the reference values.
It does not matter which of the four corners of a block are used to define the two points as long as they are opposite corners.
fbMat=matName
Name of MATERIAL of the foundation block.
Units | Legal Range | Default | Required | Variability |
---|---|---|---|---|
– | Name of a Material | none | Yes | constant |
fbX1Ref=choice
Relative X origin for fbX1 point. Options are:
- SYMMETRY
- WALLINT
- WALLCENTER
- WALLEXT
- FARFIELD
Units | Legal Range | Default | Required | Variability |
---|---|---|---|---|
choices above | WALLINT | No | constant |
fbZ1Ref=choice
Relative Z origin for fbZ1 point. Options are:
- WALLTOP
- GRADE
- SLABTOP
- SLABBOTTOM
- WALLBOTTOM
- DEEPGROUND
Units | Legal Range | Default | Required | Variability |
---|---|---|---|---|
choices above | WALLTOP | No | constant |
fbX1=float
The X position of the first corner of the block relative to fbX1Ref.
Units | Legal Range | Default | Required | Variability |
---|---|---|---|---|
ft | 0.0 | No | constant |
fbZ1=float
The Z position of the first corner of the block relative to fbZ1Ref.
Units | Legal Range | Default | Required | Variability |
---|---|---|---|---|
ft | 0.0 | No | constant |
fbX2Ref=choice
Relative X origin for fbX2 point. Options are:
- SYMMETRY
- WALLINT
- WALLCENTER
- WALLEXT
- FARFIELD
Units | Legal Range | Default | Required | Variability |
---|---|---|---|---|
choices above | WALLINT | No | constant |
fbZ2Ref=choice
Relative Z origin for fbZ2 point. Options are:
- WALLTOP
- GRADE
- SLABTOP
- SLABBOTTOM
- WALLBOTTOM
- DEEPGROUND
Units | Legal Range | Default | Required | Variability |
---|---|---|---|---|
choices above | WALLTOP | No | constant |
fbX2=float
The X position of the second corner of the block relative to fbX2Ref.
Units | Legal Range | Default | Required | Variability |
---|---|---|---|---|
ft | 0.0 | No | constant |
fbZ2=float
The Z position of the second corner of the block relative to fbZ2Ref.
Units | Legal Range | Default | Required | Variability |
---|---|---|---|---|
ft | 0.0 | No | constant |
endFndBlock
Indicates the end of the foundation block definition. Alternatively, the end of the foundation block definition can be indicated by the declaration of another object or by END.
Units | Legal Range | Default | Required | Variability |
---|---|---|---|---|
none | No | constant |