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Saturday, August 22, 2009

Green BIM: Sustainable Design with Building Information Modeling

Aren't these blog posts about BIM, LEED and IPD so much nicer than those CAD posts. Thank you for your patience last week and now let's move forward with these career changing articles.

I've taken a few excerpts from the article and posted them below. Just be aware it's an article by an Archicad user, but even so, he's got some great ideas.

repost: http://architosh.com/2009/08/green-bim-sustainable-design-with-building-information-modeling/ Aug 12, 2009 5:22 pm byMatthew Brewster

Sustainable, or green design, are buzzwords of contemporary architecture. For reasons that vary from meeting energy codes, managing increasing fuel costs, reducing waste, expression of personal values, or the desire for self-sufficiency, more people are thinking green. How can Building Information Modeling (BIM) help to design better “green buildings”?Green Design with BIM

The thoughtful designer can use BIM models to save resources AND money for project owners by incorporating analytical studies into the early design phase.

Analytical sun studies
Continuous control of usage of resource
What-if scenarios for design optimization
Computer energy simulations

Architects and engineers can collaborate to generate many alternative concepts for building form, envelope, and landscaping. This allows focus on minimizing peak energy loads, demand, and consumption.

Typically, heating and cooling load reductions from shading devices, better glazing, insulation, efficient lighting, daylighting, and active and passive solar systems allow for smaller and less expensive HVAC equipment which, when well designed, can result in little or no increase in construction cost compared to conventional designs. Simulations are used to refine designs and ensure that energy-conservation and capital cost goals are met and to demonstrate compliance with regulatory requirements.

Developers of BIM applications have become one of the leading forces behind interoperability standards such as the Industry Foundation Classes (IFC), which allows sharing and exchange of the 3D model’s information for generating building simulations across multiple applications.

As a result of this interoperability, the BIM model functions as a fulcrum around which everything else pivots – from structural engineering applications to collision detection, building performance and energy analysis regardless of the software manufacturer.

Data Sharing

Using the BIM model as the data backbone for the process, energy analysis software such as IES, ECOTECT and EnergyPlus in North America or VIP and RIUSKA in Europe can contribute valuable data to a project. Primarily used by engineers, this software can be used to optimize systems such as solar, thermal, lighting and HVAC. EnergyPlus and RIUSKA users can take advantage of IFC compatibility for a smooth collaboration with the BIM application. Green Building XML (gbXML) is used for connections with Green Building Studio, ECOTECT, and IES Virtual Environment.

continue reading: Green BIM: Sustainable Design with Building Information Modeling | Architosh


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