Friction Coefficient in Bridge Sliding Bearings
| Author(s): |
Daniele Cuminetti
Virginio Quaglini Daniela Ferroni Paolo Dubini Riccardo Motta |
|---|---|
| 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: |
The paper gives an overview of the behaviour of polytetrafluoroethylene, or PTFE, used as main sliding surface in bridge bearings, focusing in particular on the friction coefficient in service conditions and the related influence of contact pressure. The two worldwide most popular codes on bridge bearings, the North-American Load Factor and Resistance Design Bridge Construction Specifications by American Association of State Highway and Transportation Officials, or AASHTO LFRD, and the European Norm 1337 give prescriptions for design and assessment regarding such aspects. The differences in materials and operations between the codes derive from different approaches followed for their development, more empirical and based upon historical data and manufacturers’ experience for AASHTO LFRD Specifications, and more supported on specific research data and experimental assessment for EN 1337. |
| Keywords: |
design standards wear bridge bearings friction coefficient PTFE EN 1337 AASHTO LFRD Bridge Construction Specifications
|
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data sheet - Reference-ID
10065548 - Published on:
03/10/2011 - Last updated on:
05/07/2021
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