whighlander
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With the opening of the Marathon Bombing Trial its appropriate to look at the work associated with the first permanent memorial -- the MIT Officer Collier Memorial
http://newsoffice.mit.edu/2014/work-begins-collier-memorial-1010
http://newsoffice.mit.edu/2014/work-begins-collier-memorial-1010
Artist’s rendering of the Collier Memorial
Image courtesy of Höweler + Yoon Architecture, Squared Design Lab.
An open hand
Constructed like a complex puzzle around a central keystone, the Collier Memorial will comprise five archways in the shape of a protective yet open hand. As Yoon has designed it, the structure is built of solid granite to embody strength and encompasses a void at the center that evokes the absence of a large figure.
The memorial will stand at the intersection of Vassar and Main Streets, where there is now a small garden between the Stata Center and the David H. Koch Institute for Integrative Cancer Research. This site is very close to where Collier lost his life. While the structure’s open center creates a sheltered space for reflection and contemplation, the five “fingers” radiate outward and frame significant views, including a view of where Collier’s patrol car was parked.
“This has become a very ‘MIT’ endeavor,” Yoon explains, “because developing and constructing the memorial requires a coming-together of like-minded, like-spirited people from many different disciplines to create something singular in the world.”
Class of 1942 Professor of Architecture and Engineering John Ochsendorf and his Masonry Research Group have been consulting with the project team on the memorial. Together with Yoon, Ochsendorf’s students developed an interactive tool that enables the design team to test various geometries and get real-time feedback to ensure that the structure’s load is distributed safely even as the form is adjusted due to site and design parameters.
“As a load-bearing granite structure, this memorial is unprecedented in scale and complexity,” explains Ochsendorf, who volunteers his time. “It involves the digital fabrication of the stones, complex structural engineering, and traditional crafts and trade skills upon installation, so it calls upon a wide range of proficiencies. Together, the stones will stand 11 feet tall and weigh 190 tons — and they will balance in equilibrium, relying on compression with minimal external assistance. It’s a world-class venture in terms of design and engineering.”
Strength through unity
Yoon’s design for the Collier Memorial entails piecing together roughly 32 massive sections of solid granite, each weighing between 5,000 and 11,000 pounds and held in place primarily through weight and compression. The stones are being quarried in Virginia and shipped to Wisconsin, where they will be robotically carved into precise shapes.
“The memorial achieves its full strength and stability only when all of the pieces are in place,” says Yoon. “Each stone is a different size and shape of natural quarried block, and the pieces in the compression ring around the keystone have curvature in all three dimensions. We wanted to make sure the geometry was a result of bringing form and forces together — enabling the public to move through the structure as a threshold or gateway in remembrance of Sean’s service.”
Yoon and her collaborators are now in the process of determining the best method of installing the memorial’s stones; the current plan is to start with the keystone and build outward. Due to the scale and complexity of its components, the construction of the memorial will require weeks of time as well as extraordinary patience and precision.
From UROPs to PhDs, a range of students has been engaged in both design and structural research for the project. Student work includes conducting tests to confirm the relationship between overall form and specific details of the design relating to gravity loads as well as earthquake loads and other natural events.
“Our goal is to create something that will stand for centuries,” notes Ochsendorf. “The effort by Meejin and her team is a great example of how to put a diversity of research into practice to see what works. It’s been a huge undertaking by everyone from the designers and engineers to the fabricators and builders.”
“People think of design as a creative enterprise,” says Yoon, “but in this case, both the design and the engineering have made this an incredibly creative process, and I’m looking forward to the next phases.”....
The project team includes:
- Architect: Höweler + Yoon Architecture
- Structural engineer: Knippers Helbig Advanced Engineering
- Masonry consultant: Ochsendorf DeJong and Block Consulting Engineers
- Landscape architect: Richard Burck Associates
- Geotech engineer: McPhail Associates
- Civil engineer: Nitsch Engineering
- Lighting designer: Horton Lees Brogden Lighting Design
- Electrical engineer: AHA Consulting Engineer
- Construction manager: Suffolk Construction
- Project manager: MIT Department of Facilities