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When Wind Comes Alive

Discussing the effects of wind on buildings and the building design process.

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Craig Skipsey

Craig Skipsey

Passionate about the construction industry and working within it for over 12 years. Consultant for GWTS. Interested in the entire lifecycle of projects. Doesn't like windy places.

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For folks who aren’t architects (like me), we don’t give much thought to building design.  We blissfully carry out our lives in and around structures.  I’ve had the privilege recently to try to understand how a building takes shape during the design process.  I’ve discovered that there seem to be 2 methods at either ends the same spectrum.  Top-down and bottom-up.  Each has an profound affect on not only the designs an architect produces but also how they run their business, engage with clients and consultants.
 

Top Down

This approach is often driven by a strong personality (usually a director) with a creative vision.  That creative vision is influenced predominantly by that individual’s style and personal tastes.  Clients select these architects because there is often something in the design that resonates with the client.  In top down architecture, aesthetics reign supreme over most other design factors.  With top down there is often a piece of the architects personality in the design.  So any factor that threatens that design is often taken personally.
 
The advantage to top down is that clients know what they’re getting.  There is often an obvious design language that shines through no matter what the context of the project.  Clients are drawn to it and will select an architect because of it.  The disadvantage is that the architects desire can become a risk factor for the client too.  If they’re too stubborn to challenge their own design language for the good of the project, clients can feel like they’re not getting the outcome they want.  Top down architecture is a challenging balance between client needs and aesthetic form.  It often assumes that you can’t have both - its either/or.
 
Eureka Tower by Fender Katsalidis
Eureka Tower by Fender Katsalidis
 

Bottom Up

This seems to be an emerging practice, particularly in Melbourne.  Bottom up doesn’t start with any defined design language.  The design starts with client needs first and foremost aswell as site context.  Its a far more fluid process where both artistic and scientific inputs are related to the design during various iterations.  Aesthetics are still important, but they’re more responsive than oppressive.  This can result in some really creative designs that clients love.  The type of client that selects this approach is a little more adventurous.  Yet they still want to drive the design process - they want a piece of their personality in the design - not just the architect.  They want to use the design as a way to improve project outcomes.
 
Bottom up assumes that you can have striking form and meet the needs of clients.  It is a both/and approach compared to top down.  Architects that master the bottom up approach become known not for design language or style, but for project outcomes.  Bottom up also requires architects to really push boundaries of construction methods, planning regulations and engineering assumptions.  These things are not for the feint hearted.
 
 Abode 318 by Elenberg Fraser
Abode 318 by Elenberg Fraser

 

Which is best?

I think its about personal preference really.  I tend to sway towards bottom up, mainly because I believe in this approach to other areas in business (like The Responsive Organisation movement).  Of course there is also another way to look at this.  That is top down and bottom up are really a spectrum.  Different firms would sit at different places on this spectrum and perhaps change depending on the market conditions.  In any case, I find the complexity behind the process fascinating.  It makes me look at and experience buildings entirely differently.  Observing them and wondering - how did they arrive at that design outcome?
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Join our online Wind Engineering Q&A session on Google Hangouts.  This will be your chance to talk about wind loads with our Principal Wind Engineer, Dr Seifu Bekele.  Our aim is to help engineers and architects understand wind and use it to their advantage in the design process.  There will be no agenda, however here are the typical topics we tend to come across with our work:

  1. Damper design and building motion.  Which standard should we use?  What return period is appropriate?  How do we minimise or eliminate the need for an active damper system?
  2. Internal pressures.  How do we model and design for internal pressures that may change with respect to building openings?
  3. What type of wind tunnel test method is appropriate for different building designs?  Aerolastic, high-frequency force balance, surface pressure etc.

These discussions allow us to share our current areas of research which we do in partnership with the Monash University.  We want to teach more people about wind, so we're offering a Google Hangout session for anyone to call into for free.  If you're interested, please fill in the form below and we'll send you the information.  Date and time will be determined based on the time zones of people who register.  We'll try to pick a time that works for everyone.

 

Click here to Register

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It's as Melbourne as the MCG, meat pies and cold days in summer. It's wind whipping throughDocklands(link is external).

When there is even a breath of wind about, Docklands is like one of those cool machines that simulates sky diving(link is external). OK, maybe that is a little over the top, but you get what I mean. I understand that it was a windy place prior to development, but I do not think that is an excuse.

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