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Video: Behind the Candela exhibit
Posted February 12, 2009; 11:52 a.m.
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Engineering assistant professor Maria Garlock describes how Princeton students helped research and build models for an exhibition on architect Félix Candela. Read more.
Video Closed Captions
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Maria Garlock:
"Beautiful engineering" is not an oxymoron,
Maria Garlock:
and what we are trying to teach is along the lines of what David Billington has been teaching for decades.
Maria Garlock:
And that is the idea that there are these best examples of structural
Maria Garlock:
engineering, which are... the best examples are works of art themselves. Bridges, for example,
Maria Garlock:
are pure engineering forms. And these vaulted structures of
Maria Garlock:
Felix Candela's are also pure engineering forms.
Maria Garlock:
And so, what we are trying to illustrate or what we are trying to
Maria Garlock:
teach is this idea of engineering ...
Maria Garlock:
that the best examples of engineering are actually works of art. Felix Candela's structures are pure
Maria Garlock:
structures in the sense that the roof and the walls are all
Maria Garlock:
integrated into one, and it is a pure structural form
Maria Garlock:
based on a very rational engineering basis.
Maria Garlock:
Although Felix Candela was trained as an architect and had an
Maria Garlock:
architecture degree, we say that he was a self-taught
Maria Garlock:
engineer because he had a strong interest and talent in engineering
Maria Garlock:
analysis and in mathematics. When you see the exhibit or you
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study his works, you see all of his structures are
Maria Garlock:
all very different in terms of the forms.
Maria Garlock:
[But] they are all based on the hyperbolic
Maria Garlock:
paraboloid geometric form, and they are all only one and a half inches
Maria Garlock:
thick. Candela liked to express that thinness. So when you take a look at his
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structures, you visit them or you see them in photographs,
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it's very clear how thin these structures are.
Maria Garlock:
It's actually quite striking. If you go to visit them,
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and I've seen this, you can go right up to the edge of
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that structure and take a ruler and you can measure how thin that these structures
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really are. He was able to arrive at this
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economy of construction through the geometric shape of the hyperbolic
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paraboloid, because a hyperbolic paraboloid --
Maria Garlock:
although curved in two directions like a saddle -- can be formed with
Maria Garlock:
straight lines. And that leads to economy of
Maria Garlock:
construction through straight-line boards instead of curved forms,
Maria Garlock:
which are very expensive in construction.
David Billington:
These things were built economically,
David Billington:
and that is why we are at great pains to show the scaffolding on
David Billington:
which they were built because that is an important part of the exhibition. He was a builder,
David Billington:
and he always considered himself a builder, but he was also a designer.
David Billington:
And because he had a strong aesthetic motivation, he was a structural artist.
Maria Garlock:
The criteria for structural art --
Maria Garlock:
this phrase coined by David Billington -- is that it has to be
Maria Garlock:
efficient in the sense that it minimizes materials but is still
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able to carry the forces that it is intended to carry but still being
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very safe. It has to be economical by
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minimizing the cost -- the cost associated not only with the
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building and the construction but also we're talking about long-term
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durability. So, when you combine efficiency and
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economy, we're talking about a sustainable structure.
Maria Garlock:
And it also has to be elegant. So, what we are showing through
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these works of Candela is that he meets these three criteria.
Maria Garlock:
In 1950, Candela did not have the computers or software that would be
Maria Garlock:
available for us today to analyze these structures.
Maria Garlock:
How did the forces on these structures flow to the foundations?
Maria Garlock:
Candela made some assumptions in his analyses,
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and what we did was we used the most sophisticated computers and the
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most sophisticated software to make these analyses to essentially
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confirm what he had assumed in the 1950s.
Maria Garlock:
The exhibit consists of structural models, so smaller-scale,
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obviously, models of his works. And we had 19 students involved in
Maria Garlock:
the building of these models. And actually the students were very
Maria Garlock:
much an integral part of the entire project,
Maria Garlock:
not only in the model building, but also the research that went into
Maria Garlock:
this. Because the time that this project began, in 2005, there was still a lot of research
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that needed to be done on Candela himself.
Maria Garlock:
We needed to write a book, and we needed to do the research.
Maria Garlock:
So we had students write master's theses, a Ph.D. theses, student projects,
Maria Garlock:
conference papers, and if you look at the book it will
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say: "This chapter was written by Edward Segal and the co-authors," for example.
Maria Garlock:
So, we had the students help us to put together the book,
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even, and write some of these chapters with us.
Maria Garlock:
So, it was very much an educational project from the very beginning.
Maria Garlock:
So, the education aspect of this exhibition isn't just the exhibition.
Maria Garlock:
The process, the whole development of the project, was an educational process as well.







