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Bridges Review - Bridges Midterm Review Nellie Morris...

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Bridges Midterm Review 09/03/2008 19:08:00 Nellie Morris Identifications location (country or city), designer, structure Equations to know F = Q/A (ksi/psi) Horizontal Reactions = qL^2/8d Vertical Reactions = qL/2 (lb or k) Essay o Reoccurring themes/comparing different engineers and structures Last years exams Iron Bridge- Abraham Darby III - UK George Washington Bridge- Amman- NYC Firth of Fourth Bridge- Benjamin Baker- Scotland Hancock Tower- Kahn- Chicago Felsenau Bridge – Switzerland- Christian Menn Structural Art     1. Scientific: minimum materials EFFICIENCY 2. Social: minimum cost ECONOMY 3. Symbolic: maximum personal expression
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ELEGANCE Efficiency  – min materials with safety Performance – laod carrying behavior calculation of stress Safety- load carrying limit, test to failure
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