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TM
Complete Detailing for Concrete & Steelwork
Brenden Picton / Paul Hellawell
GHD
Revit Technology Conference 2010
Session Outline – Part 1: Steelwork
The first part of the presentation will consist of showing how creating complex families will speed up your documentation process in regards to steelwork.
The presentation will cover;• Nesting families;• Linking family parameters;• Demonstration of creating type catalogues to drive your families; and• Demonstration of the importance of creating your families the same
way each time.
Introduction
Revit Technology Conference 2010
Session Outline – Part 2: Concrete
The second part of the presentation will look at complex reinforcement detailing of a bridge abutment.
The presentation will cover;
Typical reinforcing with shape codes;Tagging and detailing;Linking projects using shared coordinates; andSetting up your projects to speed up and improve documentation.
Introduction
Revit Technology Conference 2010
Detailing Steelwork Connections in Revit - Options
2D Documentation - Relatively Quick but not fast;- Not ideal when everything else is 3D;- Doesn’t update when things move;- Only shows up in 1 view; and- No scheduling
Part 1 - Steelwork
• Autocad Structural Detailing - Another piece of software to learn & buy;
- Initial setup costs; - Fast; and- Until latest version – x32 bit
Revit Technology Conference 2010
Detailing Steelwork Connections in Revit – Options
3D Documentation Time consuming;Very few families available;Limited functionality with Extensions Manager; andExtensions manager only creates 3D extrusions that don’t schedule nicely.
Part 1 - Steelwork
However if we do document in 3D– Displays in more then 1 view;– Benefits of scheduling;– Better coordination;– Allows more flexibility with documentation; and– Can’t be ‘fudged’
Revit Technology Conference 2010
3D Connections
Decision was made to detail connections in 3D.
Part 1 - Steelwork
– Have a good base of standard connections;
– Get the information to the users;
– Keep them relatively simple; and
– Create families the same way. Use consistent parameter names between families, ie. Shared Parameters;
• Start to nest the connections into the framing families– Connections already modelled when you put the framing in
Revit Technology Conference 2010
Nesting Connections
CHS + Fin Plate Example
Take the normal, out of the box CHS family that comes with Revit.Save as ‘CHS + Fin Plate.rfa’
Part 1 - Steelwork
• Create your capping plate– Face Based family template– Use Type Parameters– Create ‘Types’ for each of the CHS sizes– Ensure you set the Family to ‘Shared’
Revit Technology Conference 2010
Nesting Connections
Create your Fin Plate FamilyFace Based family templateUse Type Parameters for Geometry constraintsUse Instance Parameters for Construction constraints, ie. Fin Plate RotationCreate ‘Types’ for each of the CHS SizesEnsure you set the Family to ‘Shared’
Part 1 - Steelwork
Revit Technology Conference 2010
Nesting Connections
Loading the connections into the CHS Family.Place the capping plate on the edge of the CHSand lock to ref planesGive the capping plate a label
Repeat at other end of CHS
Part 1 - Steelwork
Revit Technology Conference 2010
Nesting Connections
Repeat the same process for the Fin Platesand lock them to the reference planes in the left of right views.
Part 1 - Steelwork
Revit Technology Conference 2010
Linking Visibility Settings
Click on the Right capping plate and open up the instance parameters
Click on the grey box next to the ‘Visible’ parameter, create a parameter called ‘Capping Plate Right Y/N’
Repeat of Left capping plate and also both Fin Plates
This allows you to turn the capping plates on and off as you desire
Part 1 - Steelwork
Revit Technology Conference 2010
Linking Family Parameters
Click on Fin Plate Right and open up its Instance Parameters
Click on ‘Fin Plate Rotation’ and link it to a new family parameter in the CHS + Fin Plate Family
Repeat for Fin Plate Left
Part 1 - Steelwork
Revit Technology Conference 2010
Writing the Type Catalogue
The family types should now look like this.
The family is pretty much complete
Time to write the Type Catalogue
Part 1 - Steelwork
Revit Technology Conference 2010
Writing the Type Catalogue
Take a copy of the CHS type catalogue that comes with Revit and save it with the same name as the CHS + Fin Plate family.
Add the Fin Plate and Capping plate parameters in the top row as shown
Add the Fin Plate and Capping Plate types for each CHS size as shown
Part 1 - Steelwork
Revit Technology Conference 2010
Writing the Type Cataloge
Ensure what you write into the .txt file corresponds to the family types in the Revit family
Open a new project, load in a CHS and watch how your Fin Plate and Capping Plate are already modelled
Because we created ‘Types’ for the plates, all of them will be loaded into the project when you bring in a CHS. However, the type catologue automatically sets the correct Fin and Capping Plate depending on CHS you want. If you don’t’ want them in your project, just delete them through the project browser or purge
Part 1 - Steelwork
Revit Technology Conference 2010
Importance of Creating Families the same way
1. Easier and consistent usability for users2. Consistent scheduling when using Shared Parameters3. Makes your families inter-changeable
Using the Fin Plate – Type 1.rfa family before, save as Fin Plate – Type 2.rfa
Make the necessary changes you require
Load this Family into the project
Part 1 - Steelwork
Revit Technology Conference 2010
Importance of Creating Families the same way
Click on the CHS and change the Fin Plate to Fin Plate – Type 2
All the functionality of the original Fin Plate is retained
You can delete the Types out of the second Fin Plate and create a catalogue file to keep your families in order
‘Family Types’ are important. Although they clutter your project browser, they keep your model quick. And you can always delete or purge un-used family types.
Part 1 - Steelwork
Revit Technology Conference 2010
Approach to Concrete & Reinforcement Detailing (Bridge Examples)
Part 2 - Concrete
Revit Technology Conference 2010
Approach to Concrete & Reinforcement Detailing (Bridge Examples)
Part 2 - Concrete
Revit has flaws in some concrete elements.
Separate project per complex concrete component
• Allows reuse of fully detailed concrete elements
• Consistency across projects
• Speeds up detailing time of subsequent projects
• Fully detailing bridges currently very painful however very accurate!
• Beam auto joining not helpful on bridges!– To prevent auto joining, use the complex beam and trusses template– Complex beam and trusses template cannot host reinforcement!– Use same workaround, create 2 families!
• Only certain family templates can host reinforcement– Be wary of changing family categories (eg: Generic model to Structural framing)– Workaround, build one family for in project, and one for detailing in separate project.
Revit Technology Conference 2010
We asked ourselves: Why Reinforce in 3D?
Part 2 - Concrete
• Estimation– Materials and Weights
• Accuracy of information
• Starting to include bar fabricators (Integrated Delivery)
• Visible in more then 1 view
Revit Technology Conference 2010
Bridge Girder Example
Part 2 - Concrete
Revit Technology Conference 2010
Rebar in section displays well
Part 2 - Concrete
• Rebar in Elevation displays poorly in Revit– Workaround, use detail items and tags– Turn Rebar white & Transparent
Revit Technology Conference 2010
Complex Concrete Geometry
Bridge Abutment Example
Part 2 - Concrete
Revit Technology Conference 2010
Part 2 - Concrete
Issues
• Not all rebar moves with the element the way we’d like it to.
• Adjusting 3D rebar slightly also moves the tag In a 2D elevation but the detail component doesn’t go with it.
• Rebar tools aren’t designed for sloped angles
Revit Technology Conference 2010
ApologiesAS1100 could do with a
revamp.for not making it this year!
Have a great Conference
Revit Technology Conference 2010
Speaker Name 18 pt bold Company Logo 18 pt bold
Questions