Archive for category Built Environment

Building Green with BIM : Existing Conditions

I wondered ho much of the green movement would get sidelined due to the tanking economy, and how much acceleration LEED certified projects will continue to get.   Regardless of LEED though going green is proving to be cost effective, so effect on the bottom line are always going to get noticed.  BIM allows option analysis from an energy perspective.   You can perform solar analysis, heat gain/loss, options to replace glass with low-e, double paned, or triple paned, and run your ROI on a project by project basis.  What is the payback by re insulating  or  upgrading the power plant is much easier calculated with a BIM.  A recent article by Karl Heitman in the REournal goes on to say that you need to take into account the “embodied energy” in a building and that it would take 75 years of LEED Platinum Certified Building to repay the loss of tearing it down.  So need to refit and reuse, create great projects with your existing conditions.

How you can capture existing conditions in a BIM format?  So far, not so easy.

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BIM : Contractors Reporting Big ROI

I the May/June Addition of Constructor Magazine, there are some excellent examples of Contractors using BIM.    One high light was that over 1/3 responded with over 100% ROI.  And more and more your finding contractors creating whole departments, aptly and somewhat spookily called “Virtual Construction Departments”.  I guess I find it spooky in the sense that so many in the disciplines  thought if you were not pouring concrete or putting steel up you were not adding value, however, with BIM we are starting to see a tremendous effort on the front end.

Gilbane Building in Providence found over 1,445 clashes in a 96,000 SF data center saving the owner over $800,000 in resolved issues.  All in they believed they saved the owner more than $1,000,000 while investing only $63,000 in BIM expenses.  Half of which was creating a BIM from 2D documents, etc.

Great Stuff, Read the Article.

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BIM Required on Alteration and Adaptation over $2.5M: Wisconsin

So the GSA took the lead and states are starting to follow. Wisconsin announced that on all addition and alteration projects that require $2.5M or greater that a BIM is required. With this announcement they also released there own set of guidelines. Interesting note is that both the GSA and Wisconsin are platform agnostic and refer to software as BIM authoring software or discipline specialty software, and that it must be IFC compliant.

So when does the movement around IFC begin like Linux?

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In Defense of Craftsmanship

“Shop Class as Soulcraft: An Inquiry Into the Value of Work” by Matthew B. Crawford was recently released by Penguin.  An excellent review from Kelefa Sanneh in the New Yorker was just in a recent addition of the New Yorker, and who’s review prompted this post.  While I have only read excerpts from the book the ideas certainly resonated with me.  The book is expanded from an article in The New Atlantis both the article and the book explore the idea of craftsmanship and how modernday office workers are so far removed from actual products they lose pride in there work.  He also argues that physical labor or “manual competence” is a key ingredient in craftsmanship, and who’s appreciation for how hard it can be to do something right forms a bridge or creates social currency between other craftsmen, generations and in general, people and the lack of it divorces us from our work, and then arguably, people.  Here he quotes Alexandre Kojève.

The man who works recognizes his own product in the World that has actually been transformed by his work: he recognizes himself in it, he sees in it his own human reality, in it he discovers and reveals to others the objective reality of his humanity, of the originally abstract and purely subjective idea he has of himself.

With the lack of manual competence and its social currency, the only thing we then have to rely on is hard currency, which may or may not be the best yardstick for measuring worth, or more importantly self-worth.  And while he goes on to argue why manual competence gives someone pride, connectedness and self-worth it is a point brought up by the review that I found even more compelling and he used a book by Alain de Botton, “The Pleasures and Sorrow of Work,” to illuminate a corollary and here I will quote directly from the review, as I can do no better at summarizing it.

“…when de Botton tours a biscuit factory in Belgium, he starts with mockery: ‘Grief was the only rational response to the news that an employee had spent 3 months devising a supermarket promotion based on an offer of free stickers of cartoon characters called the Fimbles.’ Then he thinks better of it and decided that, with a little imagination, it is possible to the the biscuit factory as an ennobling place:

The manufacture and promotion of all these (products) was no game, but rather an attempt to subsist which was no less grave, and threfore no less worthy of respect and dignity, than a boar hunt on whose successful conclusion the fate of an entire primitive community might have once have hung.  For if a new wrapping machine did not operate as efficiently as anticipated, or if a slogan failed to capture the imagination of shoppers, there would be no escape from shutters houses and despair in the suburbs…

So to me the bigger question is how can everyone maintain this ‘pride’ that Crawford argues so compellingly about?  From my own experience I know doing the right thing and the expedient thing are sometimes at the opposite sides of the spectrum, but certainly not mutually exclusive.  I also know that one of my best summer jobs was building fences, and it had many of the elements that Crawford points out, manual competence, skill, the belief that what I was building would last and be appreciated by others.  However, I can find that appreciation in other people and products, for example the fact that I never owned an ipod, and not so much that it looked slick but worked slick really impressed.  Or that my car has a built in umbrella holder in the side of the door that drains outdoors I find slick, and slicker still that when I opened the door and looked in, there was an umbrella there.  I appreciate the fact someone took the time to think about these things.  With my own work,  I always feel that it is our job to remove headaches and if we do it well it will be appreciated somewhere down the line.  By the architect who can readily go to work on design, or by the construction manager who realizes that the as-builts or BIM is spot on and can then work faster or more efficiently.  I can’t say how people may find it in their own work, but I can say it is there somewhere, and it is appreciated.

One of things in response to my profession, building surveying, that we have done is form the APBS (Association of Professional Building Surveyors) so we can create a certification for professionals who can take pride in their own work, and by forming our ‘guild’ let others know that when they receive our work that they can have faith in it.  Now this sounds pretty mundane compared to a guy who has his own motorcycle repairshop, as that is Crawford’s profession, and I must say does not sound as cool but to me it’s the same concept.  One note that is completely similar is that Crawford argues craftsmanship cannot be outsourced, that is when you need your car fixed, a new bathroom put in or bookshelves made, someone has to come to your house.  Well, surveying the built environment, same argument.

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OGC 3D Fusion Summit @ MIT

This event is being put on by the Open Geospatial Consortium, tough to type, tougher to say but it is one of many pushing for open standards and interoperability.   They will be speaking about these issues and new tchnologies.  I hope to stop by for some afternoon sessions and our lead technologist will be going so I hope to post on the presentations and findings.

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GSA leading the pack with BIM and Revit for the Built Environment

I put on a presentation in NYC for the GSA about capturing the built environment in BIM.  Accurate as-builts and models are becoming more and more part of their workflow and the interest generated from their solicitations is fantastic.  A couple of things became very apparent and our endemic to the industry as a whole.

  1. An accurate BIM is becoming the common language of the industry.
  2. There are a wide range of stakeholders involved and that some get it and some are new to the band wagon and wonder how this effects their everyday.
  3. They are looking for new tools and ways to get this information.
  4. Since they are platform agnostic the need for a true transportable format, a la IFC. (Industry Foundation Classes).

My feeling was that we are at the early adopter phase and we have evangelists and then everyone else so the more we are able to educate everyone and the more cases and success stories we can include, the better.  If you’re reading this I encourage you to post, link back, etc. so I can use them in my presentations and disseminate the information.

What this says for the industry is akin to McDonalds requsting free range chicken which intially might be met from their suppliers with ; “That will be to expensive.”  “We are not set up to do that.” etc. but eventually will turn into “I guess we better start providing free range chicken.”  The GSA has taken the lead here now it’s our turn to say, “I guess we better start.”  I think this will be a great opportunity.

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GM Embraces BIM

So I am reading this article on ‘GM Embraces BIM‘, and wondering if I should post it, becuase, well, GM has had better days, but the points they made such as “…GM estimates that they are able to construct a building 25% faster, saving 10-15% of construction cost. And they can do this much safer than in the past, setting industry records on safety.”  Is worth mentioning.

I have been reading a variety of articles recently that mention laser scanning, including this one, matter of factly, on how to capture the built environment in BIM, when in fact it can be a time intensive and laborious practice.  While we are looking forward to the day when anyone can walk into a room and wave a wand and have a BIM pop out you need to look at the technologies available today, they type of project and what your deliverable needs to be to make the most informed decisions.  Many times using PPLT (Point to Point Laser Technology) can be the most cost effective option.

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Sustainable Buildings By Design

The AARA (American Recovery and Reinvestment Act) is now law and now the federal dollars are starting to spill into the economy.  The effect on BIM and its growth can be shown by the GSA solicitation.   Autodesk has been delivering 2 page white papers, one of which is Sustainable Buildings By Design.  While they mention 2 ways to get the built environment, tracing and laser scanning, they have failed to see the new technolgies and methods that will be chasing this new market.

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FMJ Article: BIM How It Has Changed FM

A recent article discussing the benefits of BIM within the FM (Facility Management) World.

BIM How It Has Changed FM

http://www.fmlink.com/ProfResources/Magazines/article.cgi?FMJ:fmj051409-1.html

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Methods to Capture the Built Environment

It is estimated that the world wide construction industry is $4.6 trillion dollars, over $1 trillion in the US alone.  However, upto 80% of that construction is performed in the built environment.  Adaptive reuse, tenant improvements, renovations and the like dominate especially in older cities and especially in Europe.  The big question is how to take advantage of all the benefits of BIM in the built environment.  There are different technologies at use that I believe are more complimentary than competitive.

Graph Paper and Pencil

Graph paper and pencil is still the most used technology today.  Why?  There is little or no technology to learn much like  going out for a run where all you have to do is put on your sneakers and head out the door.  The problem is it is time intensive.  The process involves drawing the building and then placing measurements on each architectural feature.  When thatis completed you have to translate all of that onto a CAD workstation.  Inevitably there are missed measurements and the surveyor/drafter will need to revisit the site, or make an educated guess at what is happening inside the building making it time intensive or error prone.  More often than not these as-builts get a VIF (Verify In Field) stamp which then puts the onus on the construction manager to get it right in the field causing work delays as they repeat work that has already been done.

Point to Point Laser Technology (PPLT)

This technology translates laser range finder data directly into a CAD or BIM enabled work stations.  This allows the user to build models or capture a building geometry in real time while in the field.  By building in real time the user knows if the building is being captured correctly.  With real time feedback they know if a room is dimensioned correctly simply by looking at the model, and an incorrectly drawn room will not close.  The relationships between rooms are captured and the envelope of the building is determined and drawing on site.  Additionally, the user walks out of a building with a model that is close to complete needing much less post processing than other methods.

Laser Scanning

Equipment exists today that will scan buildings creating a dimensionally correct point cloud of a building.  Users can query the model to develop features and their relationships.  While we dream of the day when these scans can be converted instantaneously into a BIM model the reality today is that intensive post processing is needed to turn them into a model than can be used inside a BIM package.  After collecting the data the operator needs to take cross sections of the building in multiple views to bring into a BIM program.  They use these sections as backgrounds to build a model so a lot fo tracing needs to be done, inserting another user intensive process into BIM creation.  Uses for this technology can be excellent where data collection is difficult or MEP intensive projects.  There is excellent case studies (I will find them later and post them) where when using this technology to capture an MEP intensive project like an oil rig retrofit minimized or even eliminated reworking on the site.  That all the piping and equipment was designed and engineered off site and fit perfectly. The ROI can be immense when you imagine a full construction crew on site, and the as-builts pay for themselves, many times over.

The Right Tool for the Job

When starting a job a surveyor, architect, engineer, etc.  must decide what technology to use based on the job.  Many times what is needed is the correct geometry of the building is needed, in this case, PPLT might be best employed other cases laser scanning is needed and in smaller jobs even graph paper and pencil might be best employed.  Most importantly is to create dimensionally correct data so everyone working downstream can work more effectively and problems or any other issues are solved digitally rather than on site.

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