Recent content by Guy L'Estrange

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    Backyard suspension bridge calculations

    Thanks. They're all good points I will take into consideration. I found a good resource which covers most of these aspects with equations I can work through. It's an army engineers bridge building manual from the 60's: http://www.tramway.net/US%20Army.pdf
  2. G

    Tension in a catenary curve - Cable Camera

    Thanks SteamKing. I will get an engineer to look over my calcs before construction. I'm just one of those people who likes to know how things work the way they do. I found a resource on the tramway.net site that has equations for the type of suspension bridge I want to build.
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    Backyard suspension bridge calculations

    Thanks PhanthomJay:)
  4. G

    Tension in a catenary curve - Cable Camera

    Hi SteamKing, I hope justtoots was able to work out his calculation. I found myself using the cable tramway equations for a simple suspension bridge I want to build in my backyard. I had to convert my Aussie metric to Imperial to use the stress curve tables on page 156 & 157. Are you aware of...
  5. G

    Backyard suspension bridge calculations

    Thanks PhantomJay. I really appreciate your reply. Sorry for the dumb question but what does the up arrow stand for between l & 2? w = 18.056kg (cable weight plus evenly spaces treads and associated fasteners) l = 18m H = 1m
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    Backyard suspension bridge calculations

    Hi there, I'm planning to build a suspension bridge in my backyard and i'd like some help with sag and force calculations. The bridge will span 18m across a stream (anchor to anchor) in my backyard. I'll have 2 x strands of wire rope (1 at either side of the walkway) to span the gap. I've...
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