The Multi-Factor Durability Evaluation Model of the FRP Applied to the Structure Based on Environmental Differences

Abstract:

Based on the existing fiber reinforced polymer (FRP) durability research, considering the difference different regions, a multi-factor durability evaluation model for structural reinforcement FRP has been established. Firstly, combined with the result of rapid aging experiments, a benchmark aging model of a single factor is built. Secondly, classifying the various factors according to different geographical environments, and taking the difference between various environmental factors and test conditions into count, the benchmark aging model is revised. Thirdly, it is to make sure the main environmental factors, determine the effect weight of various factors in different areas and a coupling aging model is established through the coupled superposed. Finally, the carbon fiber reinforced polymer (CFRP) coupling aging model is obtained and compared with actual environmental in A area as an example to validate the model. The result that it can ascertain both trends are consistent and be used to guide durable design.

• Periodical: Applied Mechanics and Materials (Volumes 713-715)
• Pages: 251-254
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.713-715.251
• Online since: January 2015
• Authors: Yong Xin Yang*, Yan Hong Zhang, Qing Rui Yue, Biao Li, Peng Fei Chen
• Keywords: Coupling Model, Durability, FRP, Multi-Factors, Structural Reinforcement

References

[1] Kennethwn, Marcd, Pierre L. FRP protection and rehabilitation of corrosion-damaged reinforced concrete columns[J]. In Materials and Product Technology, 2005, 23(3-4): 348-371.

DOI: 10.1504/ijmpt.2005.007735

[2] Ahmed S D, Mark F G, Brain B H. Carbon fiber-reinforced polymer wraps for control and rehabilitation of reinforced concrete columns[J]. ACI Materials Journal 2002, 99(2): 129-137.

DOI: 10.14359/11704

[3] Yue.Q. R, Yang Y.X. Introduction to durability of concrete strengthened with fiber reinforced polymers[J]. Journal of Building Structure. 2009, 30(6), 8-14.

[4] He.M. J, Chen.W. X, Dong X.X. Polymer physics[M]. Shangha: Fudan University Press, 2000. 357-359.

[5] Gunyaev G M, Kablov E N and Aleksashin V M. Modification of construction carbon-reinforced plastics with carbon nanoparticles[J]. Russian Journal Of General Chemistry, 2011, 81(5): 970-977.

DOI: 10.1134/s1070363211050276

[6] Suvorova, Yu V, Sorina T G, Gunyaev G M. Rate dependences of the strength of carbon fiber reinforced plastics[J]. Mechanics of Composite Materials, 1991, 26 (4): 480-484.

DOI: 10.1007/bf00612621

[7] Guo C.H. Mechanical properties and durability of FRP and evaluation of durability of reinforced concrete structures[D]. Beijing: Central Research Institute of building and Construction CO. LTD, MCC Group. (2006).