digital aptitudes - Association of Collegiate Schools of Architecture

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SATURDAY, MARCH 3, 2012 - 12:30PM - 2:00PM Open Continued The structural system consists of vertical ribs and horizontal hoops. The ribs act as beam-columns to provide primary support for the pavilion. They are curved in elevation to define the rope’s surface geometry and span to a continuous compression ring at the top of the pavilion. At the base, floor beams act as horizontal ties, bracing the ribs at the bottom while allowing the structure to internally resist horizontal thrust forces from gravity loads. The vertical ribs are laterally braced by horizontal hoop members. The hoop members restrain out-of-plane movement resulting from bending in the ribs. An arch frames the entrance and supports a vertical rib above the opening. The arch further contributes to the stability by transferring horizontal loads in the interrupted hoops through triangulation to the base. This triangulation acts in conjunction with the vertical and horizontal members to resist lateral loads due to wind and other applied forces, while providing a load path to the structural base at the floor diaphragm. Each layer of rope is attached at alternating vertical ribs, through CNC milled notches, creating additional horizontal striation. In all, there is over 6,000 linear feet of inch rope used for the exterior cladding. On the interior a series of rope stools – created from 3-inch rope fold into a continuous loop and bound with a steel belt – provide seating. Overall, the thesis behind ROPE pavilion is to create simple, yet highly refined artifact that provides an enhanced visual and tactile experience to those traveling down the Assiniboine River Trail. The Sustainable Cities Initiative: Universities as Catalysts for Sustainability Nico Larco, University of Oregon Many communities and cities are desperately interested in moving toward a sustainability and livability context. Simultaneously, there is a tremendous amount of energy and know how about such issues embedded within Universities, from faculty research to courses across disciplines that address some aspect of the built environment. Thus, there is great potential to match the community need with University resources, and even though there are many applied courses and other engaged applications, the connections between town and gown are often quite weak and isolated by discipline. The Sustainable Cities Initiative (SCI) is an effort to radically alter the function of the public university to serve the public good by catalyzing community change specifically related to the emerging livability and sustainability agenda. SCI is cross-disciplinary, bringing together students and faculty in architecture, landscape architecture, urban design, planning, public policy, business, law, and journalism, to work together and to work directly with communities to help accelerate changes toward livability that the nation so desperately needs. This work is carried out through a variety of efforts, including: •Sustainable City Year (SCY): This is a program that asked a simple question: “what would happen if existing courses across a University that had some connection to livability and the built environment all worked with the same city over an entire academic year?” The result of the SCY 2010-2011 program was that 27+ professors from ten disciplines dedicated 30+ courses to work with the City on a variety of urban design, architecture, transportation and other livability projects. In all, it is estimated that nearly 80,000 50 - ACSA 100th Annual Meeting hours of student and faculty time were given to this city, which has been significantly impacted through the diversity and depth of work and ideas. Projects ranged in topics from streetscape design, light rail and public transit planning, urban ecology, and economic development. •Policy Engagement: SCI has been directly engaged in national policy issues, reviewing legislation for key members of Congress, submitting White Papers to federal transportation agencies, and meeting directly with Congress members and staff about key upcoming legislation focused on livability. •Research: SCI faculty enjoys a national reputation as experts on urban design, transportation and livability. A recent White Paper on “Transit Livability” prepared for the FTA has recently been turned into funded research with the goal to provide a series of performance metrics for assessing how well the nation’s transit systems serve the livability needs of their communities. This research bridges urban design, planning, and transportation design. In short, the Sustainable Cities Initiative is a cross-disciplinary effort integrating research, education, service, and public outreach around issues of sustainable city design. SCI represents an original and fairly radical re-conceptualization of the research university as catalyst for sustainable community change. The truly multi-disciplinary, applied learning, and engaged community orientation makes SCI a potential model for Universities interested in collaborative, multidisciplinary, and applied service learning as a key component of their curriculum. Towards [gu] Growing Urbanism Gundula Proksch, University of Washington Josh Brevoort, zeroplus Lisa Chun, zeroplus [gu] Growing Urbanism is the future of our cities. It is a new paradigm for cities that blurs the boundaries between nature and our built environment. [gu] a vision for Seattle in 2036 that embraces the re-emergence of natural systems in a symbiotic relationship with human developments on multiple scales throughout the city. Based on their geological, ecological, and social history, three different city zones - ‘water’, ‘tidal’ and ‘dense’ cities - are defined and developed to function in reciprocal exchange encouraging and harnessing their inherent characteristics for maximum benefit to the greater whole. Within these three city zones, micro-infrastructures including a natural, closed-loop water system, an ecological permaculture food system and an alternative, smart energy network are propagated to thrive as one biological organism. These micro infrastructures of [gu] are made possible by the emerging datascape of information, gathered through sensors and users augmenting our intelligence so that we may fully understand the complexities of the symbiotic relationships we are proposing each piece slowly growing together. On its smallest scale, [gu] is a hybrid, biological building system and flexible envelope controlling enclosure and microclimate through adaptive sensing mechanisms as well as providing water, energy, light and food. Ultimately [gu] is a self-generating and selfsustaining synthetic biology that will change the definition of nature and what we build. [gu] rethinks developments and trends of the current sustainability debate and takes them further towards a more integrated, holistic symbiosis between the natural and built environment.
SATURDAY, MARCH 3, 2012 - 12:30PM - 2:00PM Open Continued TWICC:Two-Way Insulating Composite Cladding Jefferson Ellinger, Rensselaer Polytechnic Institute Two-Way Insulating Composite Cladding is a customizable tile system that provides insulation to a facade with both the tile’s foam filled eco-resin fiberglass shell and an exterior layer of stagnant air generated by the surface geometry. Critical to the secondary insulate performance of the system is both the shape of the tile itself and the layout of a field of differentiated tiles. Careful articulations of both the tile and the field pattern are designed to create a rippled or textured surfaces. In this test case, a designed depth of 4 inches was used to generate a layer of stagnant air along the facade. This layer of stagnant air is in addition to the typical air film layer on the exterior surface of a wall and will act as another layer of insulation, much like the airspace in a wall cavity, retarding the thermal flows between interior and exterior. Testing is currently underway to determine the equivalent R-value; however, the initial C.F.D. (Computational Fluid Dynamic) analysis results verify the existence of a substantial stagnant air layer generated by the geometry at the building surface in both the 2-D and 3-D simulations. This has been verified across a large range of air flow velocities and directions. We expect the value to be substantially greater than the R-value of 0.17 for an exterior air film and the air layer generated should achieve an R-value near 1.0. The primary insulation property is, of course, generated by the composite material assembly and has been calculated to achieve an R-value of approximately 7.0 yielding a combined R-value of nearly 8.0 for the cladding system. When used in combination with a proper drainage plane, this substantially adds to the insulation capacity of the wall assembly at the most desirable position; the outermost level. A full scale mock up of the system has undergone weather testing and maintained positive water shedding under hurricane force conditions. The current iteration of the system shown here has recently been installed on a small structure for further field testing and verification. Equally as important to the insulation performance is the architectural effect and visual performance that is generated. In this installation, the designed pattern is constrained to using only six different tiles to expedite manufacturing, but this was clearly enough variation to generate a gradient visual pattern and dynamic play across the facade. The interplay between light and shadow give an unexpected depth to the wall surface, adding a substantial visual dynamic to the system at a very personal scale. The pigmentation is integral to the casting process. It is extremely durable and UV resistant allowing the project to maintain this look with minimal effort. The project shown represents a fine tuning of the system as a response to the local wind conditions balanced against maximizing the visual effects. Effects that reflect and re-contextualize the local landscapes through the seasons; summer and winter, buttes and moguls. Digital Apptitutes + Other Openings - Boston, MA - 51
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digital aptitudes - Association of Collegiate Schools of Architecture

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