Posts tagged with "BIM":
Notable alumni include:
Defended thesis in November 2016 and is now an assistant professor in the School of Construction Management Technology and the Department of Computer Graphics Technology at Purdue University.
Graduated spring 2016 and is now an assistant professor in the department of architecture, Universidad Técnica Federico Santa María.
Defended thesis in November 2015 and is now an assistant professor at Louisiana State University, Baton Rouge, in the department of construction management.
Defended thesis in fall 2015 and is now an assistant professor at the School of Architecture, University of Kansas.
Defended thesis in December 2015 and is now the strategy lead and senior product line manager at Cisco.
Reaping the benefits of efficiencyThe shift was pivotal. As Salama built the case for BIM, it opened the door to participate in many significant infrastructure projects across the country, including LaGuardia Airport, where she guided the Port Authority in implementing BIM and cloud-based systems to modernize its processes. After landing at Lehrer last year, Salama discovered “the real strength lies with the [building] owners. The owners have that holistic view of the full life cycle,” she explained. “They would reap the benefits of efficiency through design, construction, and facility management and operation. So that’s what Lehrer focuses on,” she said. Lehrer’s primary function is to advise clients engaged in major construction projects, but the firm’s view of a project doesn’t just begin with design and end with TCO or construction completion, however. “Aiding in delivering a beautifully-designed project within budget and schedule is a given—we are thinking beyond that, thinking about the end user, whether it is the person using the building as a resident, or the person running the building as the operator,” said Elissa Conners, marketing manager at Lehrer. “And that’s really where the data piece of leveraging the efficiency that is slowly but surely becoming mainstream in the industry in design and construction [comes in] and utilizing it to help optimize facilities, operations and maintenance when running the building.” Salama is currently involved in one of New York City’s major infrastructure upgrade projects at the Jacob K. Javits Center expansion, focusing on design, construction, and facility management to realize efficiencies through technology and innovation. Implementing technology in projects like the Javits Center and across the industry boils down to three things: technology, people, and process. “I think the industry is really facing challenges with all of that,” she noted. While many may argue technology has “arrived,” Salama disagrees as far as the AEC industry is concerned. “The technology is out there in terms of concepts and algorithms and platforms that we use in anything else but construction,” she observed. While the industry continues to lag behind consumer electronics, for example, Salama sees growing interest from investors in startups that have emerged in the industry during the past year.
Cultural, process challenges are significantThe people variable presents an even more significant barrier to progress, not only from a hierarchical or cultural standpoint, but also in terms of attracting talent. Salama explains how on any given project, there may be 60 to 70 different companies involved, from the owner to the consultants and the subcontractors. As a result, “it’s quite difficult to change the culture throughout all these different companies and try to figure out technology that works for all of them given the duration that you have.” She notes that during the course of a three-year project, a third of that time may be spent attempting to get people on board with process and technology modifications. Additionally, she said, it’s rare to see young talent coming from computer science schools entering the AEC field. “It’s just not the go-to industry for top talent. They would definitely go in other directions,” she explained, adding that if technology graduates better understood the opportunity, the industry would be well-poised to attract them. Finally, altering construction practices requires much more than a surface-level application of new technologies—yet attempting to automate old processes is commonplace. Existing document standards, contracts, and specifications that function in the world of hard copies and standard contract delivery methods simply doesn’t translate well into cloud-based systems, BIM, and mobile apps, she noted. “It’s not an easy fix of, ‘Let’s just apply technology; let’s just buy this piece of software,’ which people are frankly looking for,” she said. “It’s not really about what you buy, but it has to be embedded in everything that you do: your people, your process, and then at the end, what you buy fits that world.”
An undulating aluminum panels rainscreen features around 9000 individual triangular panels, with 1000 high performance glass units.York University is a research-oriented public university in Toronto known for its arts, humanities & business programs. Nestled into the landscape on the edge of campus and overlooking a pond and arboretum, the Bergeron Center for Engineering Excellence is a 169,000 sq. ft., five-story LEED Gold facility housing classrooms, laboratory spaces, offices, and flexible informal learning and social spaces. Designed with the idea of a scaleless, dynamically changing cloud in mind, ZAS Architects + Interiors designed an ovoid-shaped building wrapped in a custom triangulated aluminum composite panel (ACP) cladding with structural silicone glazed (SSG) type windows. Costas Catsaros, Associate at ZAS, says the building will help to establish the emerging school by establishing a dynamic, ever-changing identity. There are two main generators of the Bergeron Centre’s cloud geometry: the building floor plate shape, and various forces manipulating the topology of the cladding surface. The floor plan is designed around 8 curves: a primary curve establishing north, south, east, and west orientations, along with a radius at each corner. Center points of the radii provide reference points for additional sets of geometry and field surveying benchmarks during the construction phase. The resulting ovoid-shaped floor plate, challenged the architects with developing an effective way to wrap the building. They focused on the work of Sir Roger Penrose, a mathematical physicist, mathematician and philosopher of science, whose tessellation patterns inspired an efficient way to generate repetitive patterns using a limited number of shapes. Through an intensive design process, the architects were able to clad 85% of the building using only three triangular shapes, scaled based on industry standard limitations for ACP panel sizes. The other panels were cropped by undulating edge geometry along the soffit and parapet edge curves of the surface. To achieve a dynamic effect, the panels inflect at up to 2” in depth, creating an individualized normal vector per panel. By canting the triangulated panels, subtle variation in color and reflectivity is achieved. Additionally, the architects scattered color-changing dichroic paneling throughout a field of reflective anodized panels, while dark colored panels casually cluster around window openings to blur the perceptual edge between solid and void. The building substrate framing is designed with the complex geometry of the rainscreen system in mind. A modular pre-framed structural unit was developed through a highly coordinated BIM information exchange process which resulted in custom support collar detailing at window openings, a unique two-piece girt system to provide concealed attachment for the ACP panels, and a method to allow for up to 1” of tolerance within the wall assembly through reveal gaps in the cladding. During this process, a design model was passed along from the architects to the structural engineer, who developed a construction model in a 3D CAD Design Software. This model was utilized to generate shop drawings, and shared with the steel fabricator, who shared the model with Flynn, a building envelope consultant, to coordinate the rainscreen panelization with respect to window openings in the building envelope. Catsaros says this was a very successful leverage of BIM technology: "It was a very intense process, but worth it in the end. Laing O’Rourke [general contractor] was able to close in the building a lot faster than if this had been done in a conventional process." Closing in the building early in the construction process was critical on this job, which required an opening date in time for the beginning of the school year in September. This required a peak in construction activity during the middle of winter, which would have presented difficulty on an open job site. The off site production and rapid assembly of the building envelope established a warm dry environment for the installation of sophisticated (and costly) laboratory equipment and building systems, none of which would have been possible with the threat of cold weather and moisture an open building invites.
A digitally-designed medical products showroom plays well with its City Beautiful neighbors.The Global Center for Health Innovation, designed by LMN Architects along with the attached Cleveland Convention Center, is more than a showroom for medical products and services. Located adjacent to the Burnham Malls, the open space at the heart of Daniel Burnham’s Group Plan of 1903, the building is part of Cleveland’s civic core. “One of the things about the Global Center is that it has a unique expression and in particular the facade treatment,” said design partner Mark Reddington. “But it’s also a really integrated piece of a bigger idea and a bigger composition.” A dynamic combination of textured concrete panels and irregular slashes of glazing, the Global Center’s facade, which won honorable mention in AN’s 2014 Best of Design Awards, deftly negotiates the gap between the building’s historic context and its function as a high-tech marketplace. The Global Center’s City Beautiful surrounds influenced its facade design in several ways. “Part of the trick for us in looking at the Global Center,” said project architect Stephen Van Dyck, “was to try and make a building that was contemporary and relevant, but also a building that referred and deferred to its context materially and compositionally.” As a reflection on the solidity of the older structures ringing the Malls, the architects minimized glazing in the east face’s concrete system. In addition, they chose the color and aggregates of the concrete to mimic the tone of limestone. The texturing on the concrete panels, too, was informed by the Global Center’s context. “Like the classical buildings, there’s a lot of detail that shows up in different lighting conditions,” said Reddington. At the same time, the Global Center is very much a product of the 21st century. “There was an explicit intention in creating a facade whose qualities would not have been achievable without digital technology,” said Van Dyck. “It doesn’t look like it was handcrafted. It was primarily an exercise in allowing the technical means of creation and design to live forever on the outside of this building.” In particular, he said, the architects were interested in how their chosen material—precast concrete—allowed them to move beyond a punched-window system to a more complicated relationship between solids and voids. The result eventually became a scientific metaphor, as the designers observed the resemblance of the pattern to the twisting helices of a DNA molecule. LMN developed the facade design on a remarkably short timeline: about four months from concept to shop drawings. “The schedule requirements of the whole thing were absurd,” said Van Dyck. To make modifying the design as easy as possible, the architects developed a utility called Cricket to link Grasshopper and Revit. The ability to update the BIM model in real time convinced the design-build team to take risks despite the compressed timeframe. “Once they realized there was a strong mastery of the data, an ability to listen and incorporate the needs of [multiple] parties, that was really the breakthrough,” explained Van Dyck. “They said, ‘Hey, we can build something that’s a little unconventional.’” Besides their Cricket plug-in, a 3D printer was LMN’s most valuable tool during the design process. To explore how the panels’ texturing would animate the facade under different lighting conditions, they created plaster models from 3D-printed casts. “We had to do that because the geometry was so complex that we didn’t have any computers at the time that were capable of [modeling it],” said Van Dyck. “For us, working between the physical, digital, hand-drawn renderings were all so critical in discovering what we ultimately ended up building.” Sidley Precast Group fabricated the concrete panels with a surface pattern of horizontal joints that vary in depth and height. To minimize cost, the fabricators made almost all of the molds from a single 8-by-10-foot master formliner, with horizontal ribs spaced every 6 inches acting as dams for the smaller molds. While LMN Architects originally wanted to limit the number of panel types to eight, the final count was around 50, including larger pieces made by connecting smaller panels vertically. The approximately 400 precast panels were moved by crane to a system of vertical steel tubes running from slab to slab, then welded into place. The Viracon glazing was welded to the same tubes, a couple of inches back from the face of the concrete. The large atrium window on the building’s east face was manufactured by NUPRESS Group. For the architects, the significance of the Global Center’s facade remains tied to its broader context. Its design, while driven by modern technology, achieves a surprising degree of harmony with its surroundings. “Our building is in a way very classical, though it wasn’t an explicit intention of ours,” said Van Dyck. “To create a language that was both universal and also something that was really new—from our perspective that was a big achievement of the project.”