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, 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

FRICTION COEFFICIENT IN BRIDGE SLIDING BEARINGS

CUMINETTI, DANIELE;QUAGLINI, VIRGINIO;FERRONI, DANIELA;DUBINI, PAOLO;MOTTA, RICCARDO
2011-01-01

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, 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
IABSE-IASS-2011 Symposium "Taller, Longer, Lighter"
9780707971223
AASHTO LFRD BRIDGE CONSTRUCTION SPECIFICATIONS; EN 1337; BRIDGE BEARINGS; PTFE; DESIGN; FRICTION COEFFICIENT; WEAR; STANDARDS
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/631989
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