[BLDG-SIM] gbXML CAD data into eQuest?

Brandon Nichols BrandonN at Hargis.biz
Wed Aug 30 09:18:34 PDT 2006


All,
 
Recently I have been successful on a number of projects exporting gbXML
building geometry from CAD (Autodesk Building Systems 2007) and
importing into version 6 of Trace 700 and version 4.3 of Carrier HAP.  
 
Have also tried sending the gbXML to Green Building Studio and
downloading the DOE-2 file they create in an effort to import this data
expeditiously into eQuest.  Unfortunately the DOE-2 file created by
Green Building studio is problematic for use in eQuest -- Jeff Hirsch
has looked at one made the following evaluation:
 
It appears that the ACad -> gbXML software creates a building model that
is not easily used in eQUEST and cannot ever be used in the eQUEST
wizard, only in the detail mode. Since it uses an "Energy Plus" style of
input model description (i.e; surface geometry but no floor plan or
space layout) it is not really compatible with eQUEST for detail
envelope or space/zone modification without some difficulty ... since
you cannot use eQUEST 2-d view (the primary way of identifying and
modifying space/zone data.)

Also, the building geometry is not correct and is difficult to really
confirm in eQUEST ... all the interior and exterior walls extend outside
the roof or the roofs are misplaced at Z low by a couple feet.

Since the creation process does not create any space (room geometry) but
only physically places walls at the site relative the location of the
building on the earth (i.e, it does not geometrically describe the
spaces so that they can be viewed in 2- and 3- dimensions, checking the
placement of walls is not possible (but there are visual problems such
as the wall height I mentioned earlier.)

 
Does anyone know of an expeditious way to transfer gbXML geometry data
into eQuest accurately -- being able use the wizards I could live
without, so long as space / zone modification possible in detail edit
mode.  Or alternatively, does anyone know if gbXML import is "in the
works" for a future version of eQuest?
 
Thanks
 
Brandon Nichols, PE
Mechanical
HARGIS ENGINEERS

600 Stewart Street

Suite 1000

Seattle, WA 98101

www.hargis.biz

 

d | 206.436.0400  c | 206.228.8707

o | 206.448.3376  f  | 206.448.4450

 
 


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