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Archive for 2011

2 R’s Won’t Make Your U

Monday, August 22nd, 2011

Article source: Engineering.Com

Architects and engineers spend a lot of time ensuring that the large buildings they design are well insulated, at least to code. But what if much of that insulation is wasted? New analysis shows that 2 R’s won’t make your U. Watch this informative video by Engineering.Com:


R value refers to the thermal resistance of a building material. The higher the R value, the more insulation the material provides. Most building designers simply provide enough insulation to meet the relevant building code or green building certification. New analysis shows that the R value of the material isn’t the only thing that affects how well a wall insulation system works. Common installation procedures can cut the effective R value in half. The culprit is thermal bridging. It’s a particular problem in the design of larger buildings that use steel and concrete studs and framing.

Steel is an excellent conductor, so any time you have steel running through the exterior curtain wall into the building, heat can follow that path either in or out of the building, essentially bypassing the insulation. This isn’t news to architects and structural engineers. What wasn’t common knowledge was how big the problem is, and how easy it is to fix.

By using sophisticated 3D thermal analysis, engineers at Morrison Hershfield working on the ASHRAE project determined that thermal bridging can result in more than double the expected heat loss. One common approach for installing insulation is with vertical Z-Girts that are in line with the steel studs. The alignment of the metal connection results in a very direct thermal bridge.

The ASHRAE study used 3D thermal modeling to follow the heat transfer across multiple types of girt connections. In addition to vertical Z Girts they modeled horizontal Z Girts, vertical and horizontal z Girts , and intermittent z Girts. As a result of this work, ASHRAE can develop new reference tables that will allow architects and engineers to truly understand the thermal performance of the buildings they design. And to improve the actual energy consumption, which is after all, the whole point.

Autodesk Showcase 2012 for Architectural, Construction, and Engineering Users

Tuesday, April 19th, 2011

Autodesk® Showcase® real-time 3D presentation and rendering software offers architects, designers, engineers, and managers the ability to quickly and easily transform digital prototypes or architectural designs into compelling imagery, movies, and real-time presentations. With Showcase, creating high-value, interactive design reviews, stunning marketing materials, and convincing sales pitches is as simple as a few clicks.

The feedback from Project Newport (Autodesk Labs) has been incorporated into Autodesk Showcase 2012. Check out this video to learn more:


 

What is new in Autodesk Navisworks 2012

Tuesday, April 19th, 2011

Autodesk Navisworks 2012 accelerates BIM project review through integration, analysis, and communication enhancements. File interoperability improvements help boost productivity by supporting workflows between the latest enhancements in Autodesk Revit products and third-party applications. New user interface and API (application programming interface) for the Timeliner tool provide greater control and flexibility when working with 4D simulations. New multi-sheet 2D DWF support enables users to open, review and explore 2D data sets alongside 3D models.

Here are a series of videos showing new Navisworks functionality (on the next page):

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What is new in AutoCAD Architecture 2012

Tuesday, April 19th, 2011

The 2012 AutoCAD Family adds a more robust set of 3D modeling tools that enable improved surfacing and conceptual design functionality, expanded point cloud support and direct access to the AutoCAD WS application via the AutoCAD user interface to enable users to view, edit and share DWG drawings through a web browser or mobile device. Other enhancements provide faster start times, faster commands and overall improved product performance, and a premium graphics and visual experience.

AutoCAD Architecture 2012 now offers faster startup and drawing load times for more immediate access to tools and large drawing navigation. A new corner windows capability makes it easy to add a single window in the corner intersection of two walls.

See the video below for new features in AutoCAD Architecture 2012:


 

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