Revit – Orient to View Problem in Large Projects

A very quick tip and trick when you need to create a 3D view that is oriented to another 2D view. In large projects you are presented with a list which does not come with a scroll bar or search tool. This means that you can spend a considerable amount of time clicking around to get your required view.

Revit - Orient to View in Large Projects Tip and Trick

Simply create a new keyboard shortcut for the Orient to view command, take a look at the video for a quick and easy solution.

Hope this is useful

Revit Tutorial – Type vs Instance Parameters

Been a little while since I posted a tutorial but this month I am going ‘back to basics’ to talk about Instance and Type Parameters and where to use them. I still find that many people are using OOTB families that are not suitable for certain modelling workflows. I will focus in on two specific families, Structural Openings and Structural Framing. The structural Openings will be created with a Generic model family that’s face based, this will be ideal for rectangular openings in walls, foundations, floors, beams etc. Let’s start by looking at the instance properties of Structural Framing. In the image below I have selected the UB section, notice that the Structural Material is instance based.

Revit 2020 - Structural Framing Instance Parameters

It may be more relevant if we made this a type parameter as the structural material needs only to be set once per family type. To do this you can simply edit the family and change the instance parameter to a type parameter. With the Structural Framing Element selected, click the Edit Family button on the Modify | Structural Framing context ribbon.

Revit Edit Structural Framing Family

The Structural Framing element will now be open in the family editor. Select the Family Type button as shown in the image below.

Revit Family Types

You will now see the Family Types Dialog box displayed. Note that the Structural Material is shown. An instance parameter will always have the bracketed word (default) displayed. This is the easiest method to spot the instance parameters.

Revit - Structural Framing Material Edit

Select the Structural Material parameter and then select the Edit Parameter command by selecting the pencil icon in the lower left of the dialog box as shown below.

Revit Family Types Dialog Box

You will now see the Parameter Properties Dialog box as shown below. Select the Type Parameter radio button as shown below and then click OK.

Revit Parameter Properties Dialog

Click OK to the Family Types Dialog box, note that the Structural Material Parameter has the (default) removed as this is now a type parameter.

You can then save the family and set the type parameter. This will then update all members of the same family type.

A full video tutorial is available here, the video also covers the creation and use of structural opening family.

Revit 2019 Tutorial Part 2 – Creating Roof Bracing Systems

In part 1 of this tutorial we looked at the creation of vertical bracing systems using Revit 2019, in this part we will focus on roof bracing systems in Revit 2019.

Cover Image

Roof bracing tends to get a little more complex than vertical bracing due to compound angles and complex connection configurations. Revit has some good tools to make the placement of roof bracing easier. We will also cover some tips and tricks for the representation of bracing in plan.

As mentioned in the part 1 of the tutorial, you should always use the dedicated brace tool rather than the beam command as shown below.

Revit 2019 Bracing Commnad

It is easier to add the roof bracing in a 3D view. It is very important to ensure that you have the 3D snapping option checked on the options bar as indicated below.

Revit 2019 Brace 3D Snapping

You can then roughly sketch your bracing configuration by snapping to the top of each rafter as shown below. Don’t worry about getting the exact position, this will be set in a later step. Do not snap to the column.

Revit 2019 3D Snapping to beam

The bracing will automatically be placed on the centre line of the rafter, but the analytical model will automatically adjust to the top of steel.

Bracing on Centreline

When a brace is selected you have the option of setting the location via a ratio or a distance along the beam. The example below shows the start of the brace set 300mm from the column and the end of the brace set to 5000mm. The plan shows the position of the brace.

Bracing Properties P1

Brace Plan Distance

Another method of placing the bracing is to use a ratio. The ratio at the start of the beam is 0 and the end of the beam is 1. In the example below a brace is placed 30mm from the start of the first rafter and then at a ratio of 0.25 (25%) along the second rafter. This value will remain parametric if the length of the rafter changes.

Bracing Properties P2

Brace Plan Distance 1

PLAN REPRESENTATION OF BRACING

In part 1 of the tutorial you will have seen that plan bracing is represented in a course level of detail with an offset dashed line. This is perfect for vertical bracing but not so good for roof bracing! In the image below, you can see the offset showing in the plan.

Plan Bracing Revit 2019 - Offset

This is due to the plan representation showing a parallel line and offset. However, we will use the Kicker brace symbol to represent the bracing in plan.

Revit 2019 Bracing Settings

To set the bracing to kicker bracing, in the Properties Palette, set the structural Usage to Kicker Bracing as shown below.

Properties - Kicker Bracing

You can of course edit the line pattern and the symbol for kicker bracing.

M Brace kicker family

In the example shown below I simply edited the line pattern in the object styles for kicker bracing and deleted the X in the M_Connection-Brace-Kicker.rfa.

Plan Bracing Revit 2019 - Kicker

ADDING STRUCTURAL CONNECTIONS IN REVIT 2019

You can of course add some basic connections in Revit 2019, but you must make sure that you create the bracing first and then add the relevant connections. If you add connections before the steel model is complete you will not be able to 3D snap to the rafter.

Revit 2019 bracing connection

The below image shows the Double Tube Bracing connection dialog box. The 3D representation of the connection is almost identical to the advance steel connection. However, of you require fabrication documents, accurate cutting lists, constructability verification and CNC code then Advance Steel can be used.

Revit 2019 bracing connection Dkialog Box

Advance Steel can create full fabrication documents and details. The image below shows the same frame in Advance Steel. This has been transferred using the Advance Steel extension which will keep both models synchronised.

Advance Steel 2019

In the images below you can see assembly drawings that are automatically created for the rafters and haunches.

Advance Steel Fabrication Details

Here is a list of plates and surface areas for galvanising.

Advance Steel Plate List

Finally the CNC data is generated for the automated drilling and cutting of each item in the model.

Advance Steel NC Files

LawrenceH

 

Revit 2017 Reinforcement Tag Alignment

Whilst providing Reinforcement Detailing training I often get asked if it is possible to align the  MRA (Multi Rebar Annotation) tags. Currently with Revit 2017 it is not possible to align the tags but I recently stumbled over a free application to achieve this task!

autodesk-revit-mra-reinforcment-range-indicators

The application can be installed via the Autodesk Exchange Apps website by clicking the ‘X’ icon on the InfoCenter toolbar in the top right corner of Autodesk Revit.

autodesk-revit-exchange-apps-icon

You will now see the Autodesk App Store web page. Search for Align and then install the app from BIM 42 as shown below. (The app currently supports Revit 2016 and 2017)

BIM 42 Align Tool.png

Once the app is installed you can access the tools by selecting the Add-Ins ribbon. The tools are shown on the Align panel as shown below.

align-ribbon-panel

Here is the result of using the Align Left tool with a selection of MRA tags.

rc-tags-aligned

Overall this is a very useful set of tools for any tags that you may want to tidy up. See the GIF video below.

reinforcement-tag-align

Revit Structure – Controlling the stick symbol location for Beams

Earlier this week a client contacted me and asked about how to control the position of the stick symbol in climbing beams (see image below). Now this actually has a very simple solution but this was something that I had never noticed before and hence I thought I would share the knowledge and the tip and trick! The model had a mono pitch roof with secondary beams that were set out parallel to the rafter’s top flange. See model below.Revit - Climbing Beams

The problem arose in a course plan view as, by default, the symbolic lines are generated from the centre of the structural framing member and not the top plane. In the image below I have shown where the symbolic line should appear with the red reference planes and where the stick symbol is actually shown with default settings.Revit Stick symbols in plan and section

This obviously causes many issues with dimensioning and detailing of the structure as well as ambiguous results when adjacent beams with a differing section size are displayed in a seemingly different location!

Select your framing members and in the Properties Palette set the Stick Symbol Location to Top of Geometry. As you can see in the image below, the default setting is the centre of the member

.Stick Symbol Centre - Revit

Here is the before and after result. The shift is more pronounced on deeper sections but it does show the issue and the solution.

Revit - Stick Symbol Centre on beam

Revit - Stick Symbol Top on beam

lawrenceH

Revit Structure 2014 – New selection tools

Sometimes the smaller, less significant features are the best. In Revit 2014 you now have the access to the following selection tools which are located in the bottom right of the interface.

Selection Toolstrip - Revit 2014

These tools are very simple but can drastically increase productivity while working with linked CAD models, Linked Revit Architecture or MEP models. Below you can see the selection tools and their use.

Selection Tools - Revit 2014

Selecting elements by face is really useful whilst trying to select and edit a floor in a plan view. When enabled, this simple tool allows you to pick the floor by face.

I tend to pin objects such as grids and levels and the selection of pinned elements is another good one to manage.

As I said, simple but really useful!

Hope this helps,

LawrenceH

 

 

Understanding Concrete Beam Joins

A few weeks back I was asked how Revit Structure handles concrete beam joins and how to control and manage how beams are connected and processed at the junctions. In older releases of Revit the beams would always mitre which was good in some cases but in other situations really didn’t give the correct solution. I have now modelled the various configurations and created some images so you can see how the beams will join. If you do want a mitred junction which is not 90 degrees then you will need to use a precast material.