HVAC Structure Template Members

Like a standard framework template, HVAC special template members are added to the template relative to the origin of the template STRU.

Each of the HVAC Project Special Support templates are built on a base HVAC STRT duct sized 500mm wide x 500mm high. This is done to enable relative sizing and positioning of template members when the HVAC special template is built on a different duct size.

When the template is built, new elements are created and positioned as required for each support case.

It is possible to create GENSECS (representing framework bars), SUBS (representing items, for example, end plates) and EXTR (extrusions which can be used to represent, for example, linings).

It is possible to control the relative positions of the GENSEC, SUBS and EXTR element types (including the vertices of EXTR elements when they are applied to a duct of different size to a reference duct 500mm x 500mm. It is also possible to control the relative extension of GENSEC elements.

The control of element relative positioning and extension is controlled by the UDAs:

:MdsConfigA - standard UDA to be used for element positioning and GENSEC extension in a single axis

:MdsConfigB - Additional options to enable relative positioning in a second axis.

Both UDAs are configured as a series of character delimited instructions, a typical instruction string is:

:MDSConfigA true,U,1,HEIGHT\true,0.5\true,0.5

The instruction string can be broken down into three sections (delimited by the '\' character).