tm complete detailing for concrete & steelwork brenden picton / paul hellawell ghd

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


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


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


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’


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


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’


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


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


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


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


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


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


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


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


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


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


Approach to Concrete & Reinforcement Detailing (Bridge Examples)

Part 2 - Concrete


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.


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


Bridge Girder Example

Part 2 - Concrete


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


Complex Concrete Geometry

Bridge Abutment Example

Part 2 - Concrete


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


ApologiesAS1100 could do with a

revamp.for not making it this year!

Have a great Conference


Speaker Name 18 pt bold Company Logo 18 pt bold

Questions

tm complete detailing for concrete & steelwork brenden picton / paul hellawell ghd

Documents

d connections decision

box chs family

revit options

revit options

chs sizesensure

end of chs

complex families

fin plate familyface