Posts tagged with "Modular Construction":
Feeling boxed in, the company that pushed the boundaries of modular building is cutting out of the business.
Developer Forest City Ratner is selling its factory in the Brooklyn Navy Yard to a Roger Krulak, a former executive at the company. The Navy Yard facility produced 930 units for the world's tallest modular structure—461 Dean Street, a 32-story tower in Pacific Park (née Atlantic Yards) designed by SHoP.
When factory first opened, Forest City planned to build structures to support the guts (plumbing, bath, kitchen, and electrical) of every one of Pacific Park's buildings. The firm touted modular building's efficiency, cost-effectiveness, and its potential impact on the construction industry—one Forest City executive called the technology at the factory its "iPhone moment."
Unlike Apple, though, which comes out with new iPhones annually, 461 Dean Street tower took four years to construct. This was due in part to the building's structural issues, but also to long-running disagreements between Forest City and Skanska, which ran the factory until Forest City regained control to streamline operations. The project has the dubious honor of having one of the most languid construction timelines for a tower of its size in city history, the New York Times reports.
Despite setbacks, modular building is appealing because all of a building's parts can be made at one site, shielded from the elements, under the watchful eye of the project's designers and engineers. Although low- and lower-rise buildings, like nArchitects' Carmel Place, are soundly modular, the Dean Street building needed extra engineering, primarily steel reinforcement to provide resilience against high winds.
“The bumps we hit, with respect to Skanska, are typical of any start-up,” a sunny MaryAnne Gilmartin, the chief executive of Forest City Ratner, told the Times. “The good news is that we’ve worked out a lot of the bugs and gotten through the growing pains of innovation.”
Although modular has more than proved its merit in smaller projects, 461 Dean Street tested the technology's limits. It remains to be seen how Krulak, and other players like Capsys, will scale modular to meet its lofty aspirations. For his part, Krulak estimates that his company, Full Stack Modular, could help clients save up to 20 percent on the project's cost.
Modular self-shading system delivers budget-friendly environmental performance.Tapped to design the facade for the HUB-1 office building at Karle Town Centre in Bangalore, India, New York–based Merge Studio faced a two-pronged challenge: crafting an efficient envelope that would beat the heat without breaking the developer's budget. Moreover, the architects (whose role later expanded to include landscape and public space design) aspired to lend the twelve-story tower, the first in the 3.6 million-square-foot SEZ development, an iconic appearance. "The idea was that we bring together the aesthetics of the facade and make it performative as well," explained Merge founder and advisor Varun Kohli. Despite financial constraints dictated by India's competitive development market, Merge delivered, designing a modular facade comprising metal and glass "waves" that cut solar gain while allowing light and air to penetrate the interior. Solar analysis helped dictate Merge's overall strategy for the building envelope. "In this climate, the maximum impact in terms of heat loads happens through direct radiation, as opposed to conductive heat transfers, which meant that the shading aspect was most important," said Kohli. To lower costs, the architects came up with the idea of a modular, self-shading system in which successive "waves," oriented vertically, shade adjacent glazing. They also streamlined construction through a combination of a minimal material palette and off-site prefabrication. Though Merge had to special-order 1.5-meter Alubond panels, "everything else was fairly simple," said Kohli. "We made sure that there's no glazing where the aluminum panels curve." Mumbai's SP Fab manufactured and installed the facade, splitting each "wave" into three prefabricated pieces that were then trucked to the site and hooked on. HUB-1's glazing was carefully plotted according to the solar studies, with windows decreasing in size on the tower's upper levels. The architects also reduced the window-to-wall ratio on the east- and west-facing sides of the building. They selected double-glazed windows with a low-e coating from St. Gobain India. "It's one of the few buildings using the most high performance glass available in the country," noted Kohli. "It was a careful selection of [performance] strategies." Ventilation is provided by operable vertical slot windows between the crest of each "wave" and the adjacent panel. "Studies showed that we would be able to grab more air through those because of turbulence as it moves around the surface," said Kohli. Some of Merge's initial hopes for improved environmental performance were quashed by the financial reality on the ground. "Obviously, we made a number of compromises along the way," said Kohli. "But I think we can still prove that we were able to save energy in the range of 15-16 percent due to the facade alone." The building as a whole, which will be complete this spring, is targeting LEED Gold certification. Kohli also noted the self-shading system's potential, given a different set of circumstances. "When we first started developing this, we had enough variables that we could really manipulate the facade in response to the environment; the curves could be larger or smaller, and other variables," said Kohli. "But given the fact that we're designing in a market that's very tough financially, we had to really dumb it down. There's quite a bit of [room to explore]."