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RE: Catenary Tension and Geometry[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: <seaint(--nospam--at)seaint.org>
- Subject: RE: Catenary Tension and Geometry
- From: "Cummings, Thomas J." <tcummings(--nospam--at)GFNET.com>
- Date: Wed, 18 Oct 2006 19:35:42 -0400
Do you have a copy of Timoshenko’s “Theory of Structures” ? It is a great text and provides good derivations and proofs for cables. Basic concepts are discussed in the article on Flexible Suspension Cables and further discussed in the chapter on Suspension Bridges.
Other texts would be D.B. Steinman’s
“A Practical Treatise on Suspension Bridges” and Hool and Kinne’s
And of course last but not least, check your old differential equations texts, some of the basic tenants included the classical derivation of the differential equation of the flexible or hanging cable.
Good luck and hope this helps.
Thomas J. Cummings, PE
Manager - Bridge Design Practice
Gannett Fleming Engineers and Architects, P.C.
P: (212) 967-9833 Ext. 5244
F: (212) 268-6684
From: Garner, Robert
I'm doing some transmission tower design and the loads are from the cables (electrical conduit). I know in my "gut" that the sag to span ratio does not change when varying the weight of the cable, only the cable tension changes. But I can't find a good proof of this. Anyone have any ideas. Thanks in advance.
Bob Garner, S.E.
Moffatt & Nichol
Tel.: (619) 220-6050
Fax.: (619) 220-6055
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