Optimum Strand Arrangement for Suspension Bridge Cable
| Author(s): |
Hajime Hosokawa
Paul Mueller |
|---|---|
| Medium: | conference paper |
| Language(s): | English |
| Conference: | 35th Annual Symposium of IABSE / 52nd Annual Symposium of IASS / 6th International Conference on Space Structures: Taller, Longer, Lighter - Meeting growing demand with limited resources, London, United Kingdom, September 2011 |
| Published in: | IABSE-IASS 2011 London Symposium Report |
| Year: | 2011 |
| Abstract: |
Paul H. MuellerConstruction Consultant P.H. Mueller International Inc. Fort Lauderdale, FL, USA paulhmueller@bellsouth.net Paul H. Mueller, born 1928, received engineering training in Germany, gained bridge construction know-how while working with Phoenix Bridge Co. and American Bridge Division (US Steel) in the USA There are two methods to install suspension bridge cable; Air-spinning method and PPWS installation. Whichever method is taken, one cable is composed of many numbers of wire-bundles which are called “Strands”. After those strands are installed, they are compacted together using a compacting machine to form the cable round cross section and to the diameter as specified. Conventionally those strands are arranged in a “Staggered Arrangement”. However, recently cables for some bridges have been designed and/or constructed in a “Matrix Arrangement”. We strongly oppose this idea. For the reason that this arrangement will cause many wires to cross during compacting, which would lead to stress corrosion cracking and eventually to many wire failures during long term operation and consequently shorten the lifetime of the cable. |
| Keywords: |
suspension bridge cable strand cable saddle cable compaction
|
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data sheet - Reference-ID
10065462 - Published on:
03/10/2011 - Last updated on:
05/07/2021
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