Using “BIM” Features on a real Project
John McCann - Vipond UK
Art Dove - Hydratec Inc
INTRODUCTION:
• The Project:
• The Scope of Work:
• The Process:
• Challenges/ Benefits:
• Questions
The Project:
New Asda Store - 40,000 Sq. Ft
Scope of Works:
•
Design and Install New Fire Sprinkler System.
•
40,000 Sq. Ft New Store.
•
The store sits above the Car Parking which is below.
•
The Store has a Storage Tank and Electric and Diesel Fire Pumps.
•
Asda required the design to be carried out using “Revit” / Autodesk) software.
•
There are 4 Levels of “Bim” This project was Level 2. “COBie” was not requested.
The Process: 1
• The design process involved the different disciplines
• Architectural.
• Structural.
• Mechanical, Electrical, Plumbing (MEP)
• Refrigeration.
• Fire Protection.
• Uploading their “Revit” models onto “Autodesk Buzzsaw”.
• From Buzzsaw we downloaded their models onto our company server.
• The Revit models are large files for example the Architectural = 113mb
•
So you need plenty of hard disc space for this process.
• We use an add on software called “Hydracad” that while it uses the
Autodesk platform, allows us to design the Fire Sprinkler system more
efficiently.
The Process: 2
• The conversion of the “ Revit “ files while using “ Hydracad” go to AutoCAD 2D
Drawing format.
• During the design process, in “Hydracad”, we assign certain attributes to the
pipework/fitting/sprinklers etc.,
• Once this is completed we can then convert the drawing into AutoCAD 3D model
and then generate a “ Revit” 3D MEP File.
• A New File has to be set up in Revit to link in all the disciplines, including plan
views, and sections.
• Once the new file is set up, and the Hydracad/Revit 3D content is installed in the
file, then adjustments can be made to suit coordination and clash issues.
The Coordination/Clash process:
• Conducted by the CDM coordinator who used “Navisworks” for clash detection.
• Clash detection and Coordination issues are then sent back to us in the form of a
Clash Report. We use the interference check in “ Revit” to verify the clash.
Clashes
Page 1 of 1
Clash Report
Sprinklers & CBES Model
Image
Tolerance Clashes New Active Reviewed Approved Resolved Type Status
1.00mm
2
2
0
0
0
0
Hard OK
Item 2
Item
Item
Item ID
Type
Name
GUID:
GUID:
CBES
9c050a8aColdroom
x:-12546.63, 03180ad2Pipe
2014/3/26
Light
Shell 5445-4c7dy:16805.04, 7b8a-4005Types
10:10.48
8fb79a891500
z:602.10
[511776]
351c722ce393
391a36aaecc9 [905964]
GUID:
GUID:
CBES
7348930bColdroom
x:-12446.63, 03180ad2Pipe
2014/3/26
Light
y:14995.73, 7b8a-4005Types
Shell 7494-4a8810:10.48
8fb784751500
z:593.10
[511808]
351c722ce3f3
cb614ceb5122 [906167]
Clash
Date
Status Distance Description
Name
Found
Clash1 New -18.47
Hard
Clash2 New -11.60
Hard
Clash Point Item ID
Item 1
Item
Name
Item
Type
Shell
Shell
Challenges/Benefits:
Challenges:
• Training in the use of this software and understanding of the process is
critical.
• A clear and concise plan must be communicated to all stakeholders who
are involved in the process, and everybody must be on board.
• One break in the link can cause all sorts of delays and errors.
• Using BIM adds 30-40% additional cost to the design process.
The Benefits:
• Better collaboration at the MEP Level.
• Reduction in RFI ( Request for information)
• Better Sub Contractor efficiency
• Less rework and expensive changes
• More accurate and timely as installed information.
QUESTIONS