An experimental study on the effect of marine corrosion on frictional properties of sliding pairs of offshore isolated bridges

DOI

10.2991/iceep-18.2018.174How to use a DOI?

Keywords

offshore isolated bridges; marine corrosion; sliding pairs; periodic-salt-spray test; wet-and-dry cycle test; performance deterioration law.

Abstract

In this study, a series of corrosion tests are performed on 12 sliding pairs under complex marine environment and earthquake. Periodic-salt-spray accelerated corrosion test and wet-and-dry-cycle accelerated corrosion test are used to simulate the splash zone and atmospheric zone for an sliding pair. This study analyzes various factors that influence corrosion and determines corresponding accelerating ratio of the factors in the accelerated test. An experimental plan is designed, and the major phenomena at different stages of corrosion are discussed. Relationships are obtained for the deterioration of the static and dynamic friction coefficients with corrosion time for the sliding pairs. The results show that the friction coefficients of the sliding pairs on both splash zone and atmospheric zone show a similar periodic curve. Friction coefficients are increased firstly, then decreased, next increased, and finally decreased. After 60 years of simulated marine corrosion, the static friction coefficients are increased but the dynamic friction coefficients are decreased. The relationships obtained for the deterioration of the friction coefficients may provide a basis to investigate the variation in the performance of a friction pendulum bearing and the performance evaluation of offshore isolated bridges in their service lives.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Guifeng Zhao
AU  - Yuhong Ma
AU  - Yanmin Li
AU  - Jian Liang
AU  - Kangkang Wang
AU  - Fulin Zhou
PY  - 2018/09
DA  - 2018/09
TI  - An experimental study on the effect of marine corrosion on frictional properties of sliding pairs of offshore isolated bridges
BT  - Proceedings of the 2018 7th International Conference on Energy and Environmental Protection (ICEEP 2018)
PB  - Atlantis Press
SP  - 986
EP  - 1000
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceep-18.2018.174
DO  - 10.2991/iceep-18.2018.174
ID  - Zhao2018/09
ER  -