Posts tagged with "pavilions":
The Boston Harbor Islands Pavilion roof channels rainwater for irrigation on the Rose Kennedy Greenway.Jump on a ferry in Downtown Boston and in twenty minutes, you’ll arrive at the Boston Harbor Islands, an archipelago of 34 islands dotting Boston Harbor managed by the National Park Service. To entice city-dwellers to make the trip, Boston-based Utile Architecture + Planning has designed a composite steel and concrete pavilion with a digitally fabricated roof for the National Park Service and the Boston Harbor Island Alliance to provide travel information and history about the Islands and a shady respite atop the highway-capping Rose Kennedy Greenway. Two thin overlapping concrete canopy slabs supported by delicate steel beams provide a sculptural shelter. Utile digitally designed the $4.2 million Boston Harbor Islands Pavilion using Rhino to respond to the surrounding cityscape and serve as a playful rainwater-harvesting system to irrigate the Greenway’s landscape. Initially working with a fountain consultant, the design team experimented with the shape of the roof deformation that guides rainwater to a catch basin. The roof’s unique shape was determined using digital models and by rolling BB’s over physical models to gauge how water would eventually behave on the surface. “We realized in modeling the pavilion that the water would ‘prefer’ to follow the same axis through both pavilion roofs,” Tim Love, principal at Utile, said. “Turning the curve would have created unintended consequences in the flow of the water.” The final shape propels water from the symmetric top roof, onto the asymmetrical lower roof, gaining speed as the concrete pinches together and funneling down to what the architects described as a “giant scupper,” finally cascading into a sculptural catch basin on the ground designed to create different splash patterns depending on how hard it's raining. “The roof pinches in as closely as possible to control the flow of the water,” Chris Genter, project architect at Utile, said. The arc of the water had to be precise enough to land in the catch basin, “like water pouring from the spout of a pitcher.” Supporting the two 40-foot by 60-foot roofs, a series of steel beams form a sort of Gothic tracery, splitting in half to reduce the effective span of the concrete and minimizing the overall depth of the slab by requiring less rebar. The roof slabs vary in thickness from three-and-a-half inches at the perimeter to five-and-a-half inches at the center. “We were always interested in making the primary material concrete with as slim a profile as possible,” Love said. “The concrete structure enters into discourse with the heritage of concrete architecture in Boston and responds to the heroic modernism of Boston City Hall.” “The steel beams offered enough repetition that they began to look like contour lines,” Love said. “They allow you to more easily read the curve of the slab.” Each metal band, what Genter described as a sort of steel “fettucini,” was fabricated directly from the digital model, first laser cut and then bent to the correct shape using CAD-CAM technology. “You typically don’t see these kind of geometries in permanent structures,” Love said. “There was a lucky convergence of high ambitions all around.” In generating the digital model for the pavilion, the team had to ensure that the data was clear for the multiple fabricators involved in the process. “The curves had to form a describable surface,” Love said. “The model and its geometries had to be translatable to different fabrication processes. The model for the project literally became the model for fabrication.” Working with two separate materials built from the same digital model presented real world challenges when fitting the two together. “The project required more craft in the field than we initially thought,” Genter said. Each steel beam is made up of four pieces welded together and required more room for error in fabrication. On site, the wooden concrete formwork was subtly changed to adapt to small variations in the shape of the steel. “The answer was to get fabricators on board who can get our model translated into the final product,” Love said, explaining that working with contractors on digitally fabricated projects can be a learning experience for everyone involved. “There were a lot of subspecialties working together.” Concrete contractor S+F Concrete brought millworker C.W. Keller on board to create the elaborate wooden mold for the concrete slab. For most of the surface, deformed plywood was used, but as the curve approached its spout, a custom mold was required. “The curve was beyond the tolerance of plywood,” Love said. “Every single piece of plywood in the formwork was pre-engineered before it arrived.” Once on site, the individual pieces were fit together like a puzzle.
Digital design meets traditional Chinese craftsmanship in a pavilion constructed like a paper lanternHong Kong-based architects Kristof Crolla (LEAD) and Adam Fingrut (Zaha Hadid) married traditional Chinese craftsmanship and digital design technology in their temporary pavilion, Golden Moon, which won the Gold Award in the Mid-Autumn Festival Lantern Wonderland last month. The 60-foot-tall structure was built in just 11 days atop a reflection pool in Hong Kong's Victoria Park, proof that "complex geometry can be built at high speed and low cost with the simplest of means," said Crolla and Fingrut, who sought to rethink digital design by "anchoring the paradigm in a strong materiality." To create the "fiery flames," a reference to the Chinese legend of Moon Goddess Chang, Crolla and Fingrut began with a geodesic dome structure made from steel and wrapped it with a bamboo grid made using traditional scaffolding techniques. In this case, however, that "highly intuitive and imprecise craft" was based on an incredibly precise computer generated grid designed to install and bend the bamboo rods into a specialized structure around the steel dome. The dome was then clad with metal wire and a translucent, flexible fabric, two typical paper lantern-making materials, which were then lit up by 10,000 LEDs. The flame pattern and bamboo structure is "based on an algorithm for sphere panelization that produces purity and repetition around the equator and imperfection and approximation at the poles." The dome is wrapped with a diagrid according to a Fibonacci sequence that produces order along the equator and randomness at the poles. Simple drawings of this code were made for the construction team so they could easily mark the intersections between the steel and bamboo structures. Golden Moon is the result of research into what Crolla and Fingrut call "building simplexity," or constructing complex geometries from the simplest means. For example, optimization scripts were used to reduce the amount of fabric "flames" from 470 different units to ten that could stretch and adapt to the curve of the dome. "Preconceptions of building methods and familiar construction techniques had to be abandoned by all parties as both the digital and the material world demanded a new design and building set-up to be devised."
Use of cell phones is strongly encouraged for tech devotees flocking to Silicon Valley's 'social media whispering wall'As its name implies, Datagrove is literally a grove of data or a "social media 'whispering wall,'" if you will, that aggregates locally trending Twitter feeds and parrots them out of speakers and LCD displays woven into the digital branches of the installation. Nonprofit art/technology network ZERO1 commissioned the installation from San Francisco–based experimental design company Future Cities Lab for its Art + Technology Biennial in San Jose, CA, now on view through December 8, 2012. The theme of this year's Biennial is "Seeking Silicon Valley," which seems like a particularly appropriate place to plunder data normally hidden away in smartphones and amplify it for all to hear using custom sensors, text-to-speech modules, LEDs, and LCDs capable of responding directly to people in the immediate vicinity. In order to "render the invisible aspects of Silicon Valley visible," Nattaly Gattegno and Jason Kelly Johnson, the principals of Future Cities Lab, created a lattice structure interwoven with Twitter trending technology by Onehouse, IR sensors, TextSpeak's Text to Speech Module, LEDs by Super Bright LEDs, and Sparkfun's WiFly Shield and LCD panels that translate geo-located data feeds into light and sound. "As one approaches the installation a series of infrared sensors trigger the sensing pods to light up, which, through a series of embedded speakers, whisper to you the trending information like...Have you heard about...Oracle, or Have you heard about ...Olympics," said Gattegno. Before weaving everything together, Gattegno and Johnson first tested all of the materials individually while also developing "physical prototypes of the interactive sensing pods containing all the electronic components." After a series of tests they decided the best way to house the electronics was to seal them in vacuum formed 2-ply acrylic shells which they wove into a larger structure made from bent acrylic tubing and galvanized steel conduit. "The acrylic is heated and molded in a series of custom CNC milled jigs while the steel is bent over another set of custom jigs," Gattegno said. "Although made up of two material systems, the acrylic and steel interlock in a very deliberate way, structuring each other and suspending the sensing pods within them." All of the electronics, both the acrylic-shelled pods and the systems they operate with—the text-to-speech synthesizers, motion sensors, LCDs and LEDs—are part of an Arduino-based micro-controlled system produced and engineered in-house at Future Cities Lab's San Francisco workshop. The components were then secured to a base made from CNC milled plywood and polypropylene and installed onsite in the courtyard of San Jose's historic California Theater, creating a gathering place for the geographically disparate and disconnected Silicon Valley. The longer you view or interact with Datagrove, the easier it is to make sense of the data. Gradually, you discern patterns and begin to detect a natural cadence from what initially seems like a tangled web of Silicon Valley's verbal overflow. Photographs by Peter Prato. Additional assistance from Ripon DeLeon, interns Osma Dossani and Jonathan Izen, assisted by David Spittler.
Reimagining the chair as an architectural materialWith their focus on "environmental acuity and a critical digital ethic," Brian Bush and Yong Ju Lee of E/B Office describe themselves as "digital architects" who design "real projects that are virtually indistinguishable from their digital visions." Their most recent vision included 300 of IKEA's pine wood Ivar chairs arching through the air across the wide lawn at Freedom Park in Atlanta, where SEAT was installed earlier this summer for Flux Projects, a public art organization. Bush and Lee hope that SEAT will encourage people to reconsider the chair as more than just a passive, everyday object, but as an architectural structure in and of itself. Indeed, sitting amongst a swooping pavilion built entirely out of chairs, it would be difficult not to. No doubt you've seen the Ivar chair before, or something like it. Popular for its low price ($24.99) and ability to be painted any color, Ivar is so basic it's the kind of chair that should pop right up when you do a Google Image search for “chair” (it doesn't, though IKEA's Poang does). Because they came from IKEA, all 300 were assembled by hand by Bush, Lee and a team of 15. The chairs were unaltered except for the seat, which was removed from most to make them easier to connect. After Bush and Lee made a 3D model in Rhino with the help of a structural engineer, they launched right into building the full-scale version onsite. Once the materials were shipped to Freedom Park, installation began at the farthest edges of the pavilion, which were stabilized with rebar in a concrete foundation. Chair by chair, they worked their way towards the middle, at which point a keystone chair was added. Then the temporary bracing was gradually removed and wooden support columns were added at key points. But because the lag bolts, clamps, screws and other hardware are hidden from view, embedded in the body of the chairs, the corbeled arch looks fluid, regardless of the additional columns. Given the fact that the overall weight of the structure is nearly 4,000 pounds it's surprising that more columns weren't needed, but the parametric design manages the tolerance and distributes the weight across the structure. The result is a pavilion that, while not strong enough to be climbed on, has weathered its fair share of storms that have swept through Atlanta this summer. SEAT will remain up at Freedom Park through September 22nd, so visitors have just one more week to sit in the first row of chairs around the periphery that "turn inward to create an intimate, compressive space to converse and regard the upward flow of chairs transcending their function."