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CAST lab supports hands-on research-creation
January 1st, 1970
By Mark West The Centre for Architectural Structures and Technology is an architectural research lab at the University of Manitoba that seeks new boundaries for architectural thought, design, and building technology through physical explorations of materials, tools, and methods; the study of natural law; and the free play of imagination. A wide range of methods […]
Estimating wind loads on banners
January 1st, 1970
Wind loads on banners can be estimated and a simple example is shown below. A 90 mph, (40m/s) three second gust has a basic wind pressure of 15 psf (720 pascal or 0.72kN/m2). Codes adjust this with a coefficient of pressure and for a square fabric sign is a minimum of Cp = 1.45. For […]
Defining green roof lingo
January 1st, 1970
Green roofs succeed when they achieve the ideal balance of weight, water infiltration and soil balance to sustain desired plantings. Here are some key performance areas for soils and green roofs that JBC applies in the design process: Infiltration rate: The amount of permeability in the soil. The higher the infiltration rate, the faster water […]
Tips for incorporating green walls/roofs in the design process
January 1st, 1970
Think of green walls/roofs as integral to the building Jeff Bruce says that the biggest message for architects and builders is that green roofs and walls are not an applique that can be added at the end of the design process. Instead, think of them as integral to the program and to overall life cycle […]
Current code activity
January 1st, 1970
By Juli Case Flammability specification revision NFPA 701 is one of the most commonly cited U.S. flammability standards in the specialty fabrics industry, and is entering into its 2010 revision cycle. Proposals were due in May 2008, with revision work taking place throughout 2009. the revision cycle includes an opportunity to comment on proposals. Contact: […]
Aquaquest living wall technical data
January 1st, 1970
Source: Randy Sharp, Sharp & Diamond Landscape Architecture Inc. Living walls can be designed and planted for color and variety throughout the year. In the spring at Aquaquest’s wall, the wintergreen and evergreen huckleberries flower with white blossoms that stand out against the bright green foliage on the spiny wood fern and the licorice ferns. […]
Connection details
January 1st, 1970
When forces converge within a tension structure, the connections between each of the three systems —fabric membrane, supporting structure and tensioned cables— are critical to a successful design. The conditions of transferring loads from one of these systems to another can be grouped into edges, linear supports, point supports, corner supports, masts and base plates. […]
Print production specifications
January 1st, 1970
Click on the image on right to enlarge. General information The Industrial Fabrics Association International (IFAI) provides these specifications to ensure quality standards in advertisement print reproduction and the integration of digital content into our publications. IFAI publications are printed completely with computer-to-plate technology (CTP). Please do not send film. Digital specifications IFAI publications are […]
Terms to know when working with green roofs
January 1st, 1970
By Frank Edgerton Martin Here are some terms to be familiar with when working with green roofs. Overburden The technical term for everything installed to cover the waterproofing membrane. When writing specifications, designers refer to the “vegetated overburden” in lieu of “green roof” Intensive and extensive green roofs Intensive</strong A green roof with deeper soil […]
Lag screw formulas
January 1st, 1970
The following formula is an example of the type used to determine the maximum allowable withdrawal loading on the wood when using a lag screw: p = 1800 D0.75 G1.5 Here p is the allowable load, in pounds per inch of embedment of the threaded portion of the screw. D is the shank diameter, in […]