Thursday, December 23, 2010

CSC Fastrak to Revit Import




You can download the integration link free, by following the link below.




The CSC Fastrak import into Revit works quite well, I imported a 6 Storey steel frame into Revit from Fastrak for the purpose of producing some very quick but tidy documents for value engineering, the member sizes came through accurate compared with other packages I have tried such as E-Tabs.

It is useful for producing rough and ready documents for things like value engineering, however if it was for Construction purposes I would build the structural model from scratch.

Generally a Structural engineer will not build the analytical model to the accuracy required by the modeller / detailer for construction documents.

Wednesday, December 22, 2010

Revit Encountered an Improper Argument.....

I have seen some strange error messages in my time within Revit, but this one has to be among the best I have seen.


Revit Encountered an Improper Argument



All I was doing at the time is saving a Render to a new file.

My questions is who or what was Revit arguing with?
Everything worked fine once I clicked ok.

Strange to say the least...

Sunday, December 19, 2010

Is AUGI going to get all it's legacy data back?


Well.... it would seem the answer to that question is yes.

See the points below as stated in Alan Wooldridge's
Post

1. AUGI’s previous web service provider (Illiac) has assured us that the historical forum data is not lost nor are its backups. The data exists in full and will be restored.

2. Illiac has prepared a temporary forum system with the “old” forum data to go online.

3. AUGI and Illiac are working to finalize an agreement to transfer the forum data to AUGI.

4. Illiac has the temporary site ready to go live and AUGI is prepared to go live once the agreement is in place.

5. Both parties expect an agreement to be reached within 24 hours.

6. Within a few days after the agreement is in place, the temporary forum system is expected to be online and AUGI will begin developing the permanent forum site.

7. Because of the functional limits within the EE forum software, coupled with having access to the old forum data and input from members, AUGI will be reverting back to vBulletin forum software which should be operational within one month after the agreement is in place.

8. Based on input from members and functional limits of EE forum setup, AUGI will be reverting back to the “familiar” forum topic structure.

9. Once the vBulletin software is configured and populated with the required forum structure, all old forum posts will be imported and merged with EE forum posts. Then the temporary site will be deactivated.

I wonder if the links to AUGI I have on this page will become live again? I also wonder if my usage stats will return?

Only time will tell, watch this space......

Thursday, December 16, 2010

Linked CAD Files

Today I was working with linked CAD files, producing a model in Revit using Architects CAD drawings, I noticed something interesting when zooming in and out. The grid lines, which were perfectly overlaid, seemed to be moving....?

See the images and video below.






I decided to do some digging, and after opening the CAD file for some exploration, I soon realised the Grid lines were an X-Ref that had been bound into the drawing, but not exploded. Once I exploded the bound X-Ref, and re-loaded the linked CAD file, the grid lines once again lined up perfectly.

See image and video below.



This problem is encountered with bound X-Ref’s that are not exploded, and also with any nested blocks that are not exploded. I also noted that when trying to rotate an object, Revit struggles to snap to the intersection of 2 lines in a linked CAD file that are either unexploded X-Ref’s or blocks.


Interesting......

Tuesday, December 14, 2010

AU 2010 Online Classes



AU 2010 Online Classes are now available for download here

The classes are available to AU 2010 Las Vegas attendees, Autodesk Subscription customers, Autodesk Education Community members, AU Virtual 2010 Premier attendees, and Autodesk employees.

All AU members can access the entire library of class handouts, and watch screencasts from a selection of AU 2010 classes.

From a Revit Structure point of view, I didn't find anything that really caught my eye!

I was impressed with a class called
Modeling, Not Drafting, a Post-Tensioned Structure


I have seen a lot of PT work produced in 2D, so it is refreshing to see someone tackle this in 3D.




I am yet to watch any of the online videos, but that is on the to do list.

It appears that there is much more content for Revit Architecture and Revit MEP, and very little that is dedicated to Revit Structure.

When searching, remember to look in the AutoCAD Revit Structure Suite section, I feel some of these are geared more towards Revit Structure, than the overall 'Structural Suite.'

Maybe the two sections (Revit Structure, and Revit Structure Suite) should be combined?

Make the most of this content, download it now, you never know when a server (or internal politics) could cause the data to be lost...

Monday, December 13, 2010

Revit Forum


I was reading Ben May's Blog, Structural Revit Ninja and saw an interesting post.

It seems a group of AUGI Refugee's have set up a new Revit forum.

Ben says:

............
"Based on a very easy to use vBulletin format forum engine, you can easily setup RSS readers and the like and even use something like Tapatalk iPhone which is pretty neat

Who knows where it will go from here, and whether AUGI will resurface in anything close to its previous form

But there are already some notable minds adding their thoughts over at Revit Forum, with close to 100 users and 500 posts in its first week things are starting pretty quickly"
...........

I am yet to sign up, but did notice some of the 'bigger names' and 'high end' AUGI users (or ex AUGI users) are registered members.

Watch this space....!

Wednesday, December 8, 2010

RUGLeeds

Today I sat down with Chris Senior author of Revit Elemental to discuss the next step of the Revit Leeds User Group. We tentatively decided on the name RUGLeeds, and are planning on having the first meeting in February 2011.

We will initially keep the meetings as an open invitation, welcome existing Revit users and new Revit users of all disciplines, contractors are also welcome. The name RUGLeeds suggests this will be a Leeds only group, the group will be based in Leeds, but attendees from all the local areas will be welcome.

This is still in the early stages of planning, but if all goes to plan we will be putting together a newsletter / invite and forwarding that out to potential attendees at the start of the new year.

Below is a run down of how we see the group will help the local Revit community.

The group aims to meet regularly to discuss anything and everything Revit. The intention is to get a balance across the Revit platforms and form a core of dedicated members and a committee for the group RUGLeeds. All group members will have access to the same minutes, presentations and downloads

The group has no secret agendas and is trying to get back to grass routes, a group for users to share knowledge and learn from one another across all disciplines of Revit.

Aims and Objectives:

•To promote peer to peer support and networking for current and potential Revit users.

•To have RUG meetings at regular intervals at a frequency determined by membership.

•To have presentations based on subjects chosen by the members.

•To be a voice for UK Leeds Revit Users.

•To build a dedicated UK wish-list and become more than a lone UK voice in the wind.

•To connect with other Revit user groups throughout the UK

•To share UK families and content.

•To share "Best Practice"

•To encourage UK manufacturers to produce Revit families and content.

•To providing educational opportunities, and the sharing information with members.

•To provide support for new Leeds based Revit users.

•To provide tips and tricks at basic and geek levels!

•To report known bugs to members.

Tuesday, December 7, 2010

Revit User Group Leeds - Linkedin

We have set up a Linkedin Group to try and generate some interest in a Leeds Revit User group.

Leeds Revit User group Linkedin Page

Visit the page above and join the group, this will give us a better understanding of the demand for a user group in the area.

As noted in earlier posts, we are looking to set something up for early in the new year.

AUGI Revit Forum

So... For those readers who use AUGI you will of noticed a recent change to the appearance of the Forum. The old Orange style is long gone and replaced with a blue logo. The Revit forum has now moved to an area called Built To Last.

http://forums.augi.com/index.php/built-to-last

The new forum look is great, yes it is difficult to find the forum communities if you are a regular user, but the two real problems are.

1. All Legacy Data is no longer there.

Should you search Google for a Revit topic, you will find a list of links to AUGI, where the Google BOT has been out and picked up all the key words. If you were to click that Google link, this is what you will see.




Page not found..... Years of Data, problems, solutions, tips and tricks.... Lost.

Steve Stafford has an interesting post on Revit OPED

2. Every users rating and posts have reset to zero.

Just when I thought I was building a good reputation..... I have to start all over again!

I am now classed as..... The Silent type..... What the...?!

AUGI has been successful for one reason and one reason only, because of it's forum members! We are the ones contributing to the forums, we are the ones willing to help each other.

I hope the legacy data can be linked back to the new look forum, whilst some of it may be out of date... Many of the questions and answers are still relevant..!

As sad as it may be, that all this valuable data has been lost, we should look at this as a fresh start, an opportunity to build the new AUGI.

Monday, November 22, 2010

Revit User Group, Leeds.

I have been speaking to Chris Senior author of Revit Elemental about the possibility of setting up a Revit User Group in the Leeds area. I think the opportunity to share knowledge, make business contacts, and make new friends is something worth setting up.

If this would interest anyone in the Leeds area, comment on this post, leave me your email address (I will not publish the comments, so don't worry your email addresses are safe!) these will be collected and used for the basis of a mailing list.

If enough interest can be generated, something will hopefully take shape early in the new year!

Friday, November 12, 2010

Concrete Volume Scheduling - Cautions

Recently I was asked to schedule the concrete volumes for a building that had been modelled in one of our other offices.

The task was fairly straight forward, schedule every concrete element in the building to obtain an approx concrete volume for pricing. In todays competetive market it is essential to be as accurate as possible with your estimates.

I decided to start with the columns, and almost straight away noticed a problem with the volumes that were scheduled. The volume in the schedule was almost half the actual volume of the column. So, I decided to investigate the cause, and soon found the problem.

We had a wall with a column that was placed at the end of the wall (as shown in the image below)



The wall and column schedules shown below are the initial numbers the schedule produced.





I soon realised what the problem was, the wall was intersecting the column, and it was the wall that Revit assumed would be the prime element, so by default it was cutting the column.

The solution was to move the wall back to but up against the face of the column.



The column and wall schedules are now correct.





I decided to do some further testing, does this also happen with beams?

The simple answer is yes.

If a wall is joined to a beam in the 'wrong' way, then the schedules produced will be incorrect.





The wall should stop at the underside of the beam over.





Is this a problem with the software we use? Maybe. Is this a problem with modelling techniques, possibly.

Either way, this could cause problems on large scale projects that require accurate volume estimates. That said, a disclaimer and the word 'estimate' should cover you to some degree.

I guess we all have to pay that extra bit of attention to how we construct our models if we know we will be using the information rich BIM to schedule quantities and produce estimates.

Monday, November 8, 2010

Linked Models

For me, linking Revit models has it's advantages, but certain steps need to be taken to ensure projects run smoothly.

I always suggest a Revit team meeting, (similar to an initial design team meeting but for the Revit team only), this is to put in place the 'guidelines' for the Revit team.

Key points to discuss.
  • Nomination of a Revit manager for large projects - responsible for setting up a new central file each week, or each fortnight, and re-linking other disciplines models.

  • How often models will be exchanged - weekly in the early stages of the design, fortnightly in later stages.

  • Set timescales and discuss what each member of the team expects at what stage. For me, I expect the Architectural grids, levels, and building footprint to be locked before starting the structural model. (I find too many changes early on just eat away at the project fee)

  • The most important point is to discuss who models what. It is important that each discipline only models what belongs to them.

Point 4 is the most critical for making the most of linked models, at construction stage architects shouldn't model columns and framing, if a concrete wall has a plaster or brick faced finish, the architects shouldn't model the concrete wall, only the finishes. The Structure should be shown through the linked file, and view templates used to control the visibility. This will make sure each disciplines documentation is fully coordinated as the model is constructed.

This will open up the lines of communication between disciplines, if a concrete wall needs to be moved, or needs it's profile to be changed, conversation will have to take place and that concrete wall will have to be changed within the structural model. Rather than what I have seen happen many times, the architect changing the wall profile within his / her model, and this not be picked up in the structural model. (Although if you are using copy / monitor, this should be picked up) I prefer not to use copy monitor for anything other than column positions, floor outlines, grid lines and levels. Especially NOT walls. You will see why below.

If you follow point 4, this means you only do things once, and everyone owns and only models what belongs to them. This means the model will be coordinated as it is constructed, as opposed to coordination reviews taking place at set stages during the design and documentation stages. This can only result in increased productivity, and improved documentation.

While this method will mean a certain degree of manual coordination needs to take place, I feel the model will be constructed much more thoroughly because every team member will be forced to consider the other disciplines elements within the building.

This is one step towards a full BIM model, constructing a model that will be a true representation of what will be built on site.

I must apologise that this post has a slight biased towards Revit Structure users and perhaps a little negativity towards some Revit Architecture practices, this is a Revit Structure blog, and I can only comment on past experiences ;-)

Copy / Monitor Cautions
When users copy/monitors walls, a couple of things need to be taken into consideration.

You can't use a different wall type during the copy/monitor process because the feature only uses Wall Centreline for the alignment of the copied wall. If the wall thickness is going to change, it is best done after the copy/monitor process.

Openings in copy/monitored walls are not reliable. The opening size is equal to the overall geometry of the family doing the cutting, not just the cut opening in the wall.

Tuesday, October 26, 2010

AUGI AEC Edge - Pick a favourite article

There have been some excellent articles in AUGI AEC Edge this last 12 months, and it wouldn't be possible without everyone who contributed articles and also the people behind the scenes that put the E-Zine together.

The next edition of AUGI AEC Edge is almost upon us, and Steve Stafford of Revit OPED is interested in hearing which article you enjoyed the most in all the issues of AUGI AEC Edge.

The publisher is interested in including the most popular one(s) in a special separate publication they will do that features a number of Autodesk product related articles.

Please help Steve with this task and visit his POST

One article of note is pages 28 and 29 of the Spring 2010 Issue


The 'I' in BIM - Reinforcement Estimates

This post is the first of many, where I will explore the 'information' in the BIM model.

This is a topic I was due to present at
Autodesk University 2010, due to unforeseen circumstances I am unable to attend. As a result I will share the information here in the form of regular posts titled The 'I' in BIM with a sub-heading.

I was recently asked about Revit and it's ability to provide reinforcement estimates, without spending too many man hours on the task. The problem for many consultants in today's market is trying to be competitive. If your estimate is too high, the contractor will not be happy, if your estimate is too low and as a result you have to increase the weight of reinforcement later in the design stage, the contractor will be even more unhappy!

In the current economic climate, it is critical to try and provide estimates that are as accurate as possible.

Revit can schedule reinforcement estimates, but this requires each element to have its reinforcement fully modelled. I know what you are thinking, time consuming and costly!

Thanks to the Reinforcement Extensions, I have a quick solution.

Using concrete columns as an example, generally most columns within the structure that are the same size and height will have the same reinforcement content. (with a few exceptions of course)

When I schedule concrete columns I break each column down by size, and give each column a Type Mark, C1, C2, C3, etc... If there is a need to break each column down one more level, i.e. the type of concrete used (C35 concrete, C40 concrete, etc..) I will suffix the Type Mark with a letter. C1a, c1b, etc.

Once the columns are modelled, and you have added any descriptive information you require in your schedule to the columns type properties, it is time to add some reinforcement to obtain an estimate.

Whilst I DO NOT like using the Reinforcement Extensions to detail reinforced concrete, they do come in use for this task.

Set up a 3D view with all concrete columns visible. The Reinforcement Extensions will only allow you to reinforce multiple columns as long as they are the same size and height.

Use the 3D view to isolate sets of identical columns, and begin to reinforce these columns (in sets) using the Reinforcement Extensions.

Repeat that step for the rest of the columns in the view.

Now to set up a schedule, I generally add Type Mark, Type, Description (if I want to add the concrete type for example, I add this to the description parameter), Volume (to schedule concrete volumes) and Estimated Reinforcement Volume.

Under the formatting tab, make sure you tick the box to calculate the totals for both Volume, and Estimated Reinforcement Volume. Also make sure you itemise every instance, otherwise the Volume parameters will be left blank in the schedule.

Once you hit OK, the information is added to the schedule and is ready to be sent out to assist the QS, and help the contractor.

The estimate produced will save the engineer time, and will be much more accurate than the engineers estimate!

This really is a quick and easy process, the larger the project the machine would have to be 64-bit with 8GB minimum of RAM.

Although I managed to schedule a Reinforcement Estimate for every column in the building below using an old machine with only 2GB of RAM....!!

Saturday, October 2, 2010

Revit Structure Wish List Ballot Results


Revit Structure Wish List Ballot Results, August 2010.

Below are the top 5 Revit Structure wish list results, voted for by you, the users. My personal favourite came in at number 5.

1. Provide a "disallow join" option for framing members. This will allow them to be infinitely controlled as needed. Submitted by Tony Wagner

2. Make the creation of large text notes, such as general notes, much more like AutoCAD and graphically stable when editing at different display scales. Submitted by Buck Wooten

3. Allow Tags to be freely rotated at a desired angle. At present the user can only rotate the tags just horizontal or vertical. Submitted by Silleke Suarez

4. Enable the option in tags of showing Top of footing elevations, not just bottom. Submitted by Jonathan Brazier

5. Enable the ability to tag anything in a 3D view. Submitted by Glenn Jowett


Friday, September 10, 2010

Off Topic - Abu Dhabi

Abu Dhabi's ambitions aren't any less grandiose than its neighbour's, a number of new iconic structures are starting to fill Abu Dhabi's expanding skyline, there is plenty for Architecture and Engineering enthusiasts to look forward to.


Actively distancing itself from the bright lights and frentic pace of development in nearby Dubai, Abu Dhabi has taken a slower, more strategic approach to its growth.

I have selected a couple of buildings that capture the imagination.

The Yas Hotel

This 85,000 sq/m, 500 room structure, found at the centre of the Abu Dhabi Formula 1 circuit has ticked all the boxes on the design breif which was to create an iconic building that was architecturally and design orientated, an icon for Abu Dhabi and Yas Island.

The gridshell is the most unique aspect of this project, made up of 5,096 panels, individually crafted to fit their exact position, ensureing the 16,500 sq/m luminary extravaganza is visible from kilometres away.

Aldar HQ


Set on an elevated peninsula, Aldar HQ offers floor to ceiling windows, and open plan, column free office space. Aldar HQ's distinctive shape is highly visible at the gateway to Abu Dhabi, and will be the centrepiece of Al Raha beach, a development that will stretch over 11km of coastline.

Capital Gate


Currently holding the world record as the worlds furthest leaning manmade tower, Capital gate was designed to create a powerful visual statement, putting Abu Dhabi on the world map.

The building leans 18 degrees to the west, and is covered in over 12,000 custom cut pieces of facade glass.

Abu Dhabi is an exciting place to be for any Architect or Engineer, the 2030 vision for Abu Dhabi means construction will continue at a rapid pace for the next decade at least

Sunday, August 22, 2010

Revit Structure Wish List Now Open.

Finally, it is that time of year when the Revit Structure Wish List voting has opened.

As noted in one of my earlier posts, I have been campaigning for the ability to tag in 3D views for years.


This item has finally made it onto the wish list.

Make it your 1st choice vote...!

Friday, August 6, 2010

AUGI AEC Edge Article

The Spring release of AUGI AEC Edge is now available.



I wrote an article on Revit collaboration using a single model, which has been published in the Spring release, and can be found on pages 28 and 29.

AUGI AEC Edge is a valuable source of information for all things BIM.

Visit
AUGI AEC Edge and download the latest version today!

Tuesday, July 13, 2010

Reinforcement Extensions - Tie / Shear Link Bends

Have you noticed that when you try to reinforce a column or a beam using the Reinforcement tools in the Extensions Manager, the only options for the hook types for stirrups / ties / shear links are Standard Hook 90 deg, or standard Hook 180 deg?

The actual hook type most people will generally be looking for is a 135 deg hook, to ensure the stirrups actually look like the one in the image above.

The reaosn you cannot see a 135 deg hook is because the extensions only look for the "Standard Hook" type, and not the Stirrup/Tie Hook or Stirrup/Tie Seismic Hook.

The default template that comes with Revit only gives two options for the Standard hook, 90 deg. or 180 deg.

The solution.

Create a new hook type.

In the project browser, right click on the Standard hook, and click duplicate. rename the hook to be Standard Hook - 135 deg. In the type properties for the hook change the angle to 135 degrees, making sure the "style" is set to standard. Save the changes and head back to the extensions to try again.

Sure enough, the 135 deg. Hook type is in the drop down list, making life much easier when rienforcing multiple beams of the same type.


Sunday, July 11, 2010

National Guidelines for Digital Modelling

A set of guidelines for Revit use in the U.K have been developed and documented, The AEC (UK) BIM Standards for Revit Ver 1 and further information, Can be found on the Revit Structure Learning Curve . thanks to Alan Wooldridge, a.k.a Cadalot

This reminds me of a set of guidelines / standards that were developed for the Australasian Region last year as a result of discussions at the Revit Technology Conference .

The National Guidelines for Digital Modelling were developed by representatives from some of the largest Engineering and Construction companies in Australia and the world.

Download the guidelines here .


Friday, July 9, 2010

3D Detailing - for Chris

So, Chris asked for some information on how I use 3D views for detailing steelwork.

Essentially, I have created a wide range of face based plates and cleats, as well as bolts and anchors. The plates and cleats are easy to make, simply an extrusion in the generic model face based family template, with the category set to structural connections.

The addition of parameters to allow flexibility in width, length and thickness make the families easier to work with, and making those parameters shared parameters means I can use the information in the family to annotate the details by adding those same shared parameters into structural connection tags. Hence my call to Autodesk to allow tagging in 3D views in future releases.

The same goes for the bolts and anchors, face based generic model families with the category set to structural connection. A little tricky to build though, a range of extrusions and blends required, with mutliple types nested into the one family.

As far as using this content on a project, I follow a workflow of.

  1. Construct the model - all steelwork, concrete, walls, etc.

  2. Set up structural floor plans.

  3. Cut long sections on every major frame or even every grid line.

  4. Use call outs - usually 1:10 details, maybe 1:5 in some cases to call out every steelwork connection

  5. Begin to add the face based components to build up the connection detail, cutting multiple sections / views through the callout to place plates and bolts in the required positions.

That sums up the creation of the 2D details.

To put that information into a 3D view is simple, create a new 3D view and using the full navigation wheel a.k.a the "steering wheel," to Orient to a specific view.

Right click on the navigation wheel, and click orient to view, this will then show a list of every view in the Revit project from floor plans to detail views. Scroll down the list until you find the 2D view you wish to show in 3D, and click that view.

Revit will automatically adjust the section box in the 3D view to match the clip / crop settings of the 2D detail.

Add the 3D views to your sheets with the 2D details, this will act as a little something to wow the client and assist the contractor.

Chris, I hope that helps.

Revit 3D Detailing - Final Images

As promised, more 3D detailing images.

Enjoy.










P.S. Autodesk, are we likely to be able to tag in 3D in the 2012 release...... It has been a wishlist item on AUGI since 2009.

Tuesday, July 6, 2010

Help, I can't find the work plane...!

Have you ever needed to adjust the work plane of an object but are unable to locate the named reference plane the object is hosted on?

Here’s a tip on how to find it.

Note down the name of the reference plane you are trying to find. You can get this from the instance properties of the object you are trying to move, under Constraints > Work Plane.





Create a new reference plane and name that reference plane exactly the same name as the reference plane you are trying to find. You will see the following message The name entered is already in use. Enter a unique name.

Expand the warning and look for the element I.D. Note this down.






The final step is to search for the element by its element I.D. You can do this under the modify tab, Element ID > Select by ID




Enter the I.D Number you noted down earlier, this will select the reference plane you are trying to find. Right click, and click Maximize 3D Extents


This will maximize the extent of the reference plane so it is visible in all views.

3D Detailing - Images

As noted in earlier posts, the images I uploaded were low resolution, I was struggling to upload high resolution images.

The error message I was seeing said "image upload failed due to internal error," it appears any image I create using my 64-bit Windows 7 machine, will not upload to the blog....

In the mean time, I have started to create images using a Windows XP machine, and will add more shortly.

For now, enjoy the image below.




Wednesday, June 30, 2010

Options bar moving my objects......

This is a problem I posted on AUGI towards the end of last year

http://forums.augi.com/showthread.php?t=111281&highlight=revit+screen+jump

When I start up Revit and click on an object the Revit Options bar duplicates and physically moves the object I clicked.

The video below is a screen capture of what happens and the video is real time (meaning no, it hasn't been sped up, as suggested on my initial AUGI post)









I lodged the problem with autodesk and received the usual helpful response - "this is a known issue, we are working on the issue, blah blah blah"

Autodesk have since added a page to the online support with "solutions" to the problem.

http://usa.autodesk.com/adsk/servlet/ps/dl/item?siteID=123112&id=14997251&linkID=9243182&CMP=OTC-RSSSUP01

Disable press and drag - this works, but it isn't a solution, it is more a work around. Why disable a tool that is there to be used?

Reset the Revit registry - FAIL. This doesn't solve the problem.

I suspected it maybe hardware related, I was running a windows XP 32-Bit operating system when I first encountered the problem.

I have since upgraded to Windows 7 64-Bit, and still face the same problem time and time again.

The best fix I have found.

If you do not click on an object you won't see the objects move.

Solution

If you open Revit or are working in Revit and when you click one of your objects the Revit Options bar duplicates and physically moves the object you clicked, click undo, then keep clicking around the screen (away from your objects) and 9 times out of 10, after a couple of clicks the options bar will stop duplicating.

Failing that - save, close and restart Revit.

Not the best solution I know!

Monday, June 28, 2010

Interference Check - Structure and MEP

I for one think the clash detection tools in Revit are underestimated. Especially the clash detection between a Structural model and a Services model.

Take the project below for example, there are over 500 Structural framing members in this building, with a large number of Mechanical and Plumbing fixtures.

The use of Revit's built in interference check saved valuable time when coordinating the Structural design with our Building Services team, and the models were soon talking perfectly with each other.

The clash detection will save you those embarrassing RFI's from site, and help keep the Services guys happy.

Make sure this is a tool you use, and not one of the things that is left in the background while you concentrate on producing those 2D documents to meet your managers deadline!

We are using a BIM program remember, not AutoCAD.....

Sorry guys, the image above is a high resolution image.... but for some reason will not let you click and enlarge it.

Empty Promises and Broken Dreams

So..... I got up at 2am to watch the most anticipated match of the 2010 FIFA World Cup, and while I can admit England played awful, the decision by the match officials to disallow Frank Lampards goal was a shocker!

I am left wondering about how gold the "Golden Generation" really were? and worrying who will be in the starting 11 in Brazil in 2014.

Fabio Capello will leave a happy man, he will get a golden hand shake for leading England to their worst World Cup loss in history.



Another interesting fact is this - Since 1966 we have never beaten any team of any quality at the knockout stage of a World Cup. Our only successes have been against the might of Paraguay, Belgium, Cameroon, Denmark and Ecuador.

Friday, June 25, 2010

Slab Edges and Composite Floors


Ever tried to do this with a slab edge and composite floor:










But only end up with this:














The solution is in the order the elements are joined and by default, when you place a new slab edge in Revit, the slab edge joins with the slab in the wrong order.

To get a slab edge to display correctly:

First place the new slab edge by picking the top edge of the slab (maybe in a 3D view), not the bottom, otherwise the slab edge will attach to the underside of the composite layer as shown in figure 3.

Note - if the composite layer extends below the depth of the slab edge you will get a warning that says the slab edge is completely inside the floor - ignore this.


Then go to the element properties of the slab and apply a vertical offset to match the floor thickness.

The result will be a slab edge that is cut by the composite layer, as shown in figure 2.

To join the slab edge to the floor slab correctly, you must first unjoin the slab edge from the slab by using the Unjoin Geometry tool and selecting the slab egde.
Then rejoin the slab edge to the floor slab using the Join Geometry tool. Making sure you select the Slab Edge first, then the Floor Slab.

The end result will be a slab edge with the composite layer(s) below cropped to suit.





Thursday, June 24, 2010

High Resolution Image test.

Sorry about the poor quality images in my earlier posts, I will replace them with high resolution image files shortly.

In the mean time, enjoy the image below. A tea producing factory in NZ. The steelwork was fabricated in Taiwan, so I had fun creating the framing families. To top it off, the main rafters were curved.

All in all, a nice little project, always good to collaborate with the MEP team.