bridge.org
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da bridge
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+
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+* version 1
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+- upper member is 725mm long
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+- 50mm at the thinnest members
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+- two 1/2 inch rebar,
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+ placed ~18mm from the bottom of the top member
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+
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+[[file:./catenarybridge_full.svg]]
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+
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* footing loads and horizontal support
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:PROPERTIES:
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:ID: 411fb925-2fe6-418e-9bcb-82bbb5d034cc