Article: Life prediction and verification of coastal concrete structures on relativistic information entropy Journal: International Journal of Structural Engineering (IJSTRUCTE) 2015 Vol.6 No.1 pp.33 - 43 Abstract: Relativistic information entropy was introduced by considering the uncertainties in multi-environmental time similarity (METS) theory for the purpose of predicting the service time of new coastal concrete structures. The similarity ratios of surface chloride concentration and diffusion coefficient between indoor accelerated and outdoor natural environment were established on METS theory. The parameters' variance was considered by applying relativistic information entropy. The prior information was obtained by combining the information of the field inspection and the indoor accelerated tests. The approach has already applied to a crossing-sea bridge in eastern China. The service life was calculated by using Monte Carlo method under a given target reliability. Furthermore, concrete specimens with the same material as the bridge were placed on a field exposure station and the chloride ions concentration was measured regularly. The service-life estimation resulted from the pre-information obtained by considering the objective and subjective uncertainties appears to be conservative and reliable. Inderscience Publishers - linking academia, business and industry through research

Title: Life prediction and verification of coastal concrete structures on relativistic information entropy

Authors: Wei-Liang Jin; Zhi-Yuan Li

Addresses: Institute of Structural Engineering, Zhejiang University, Hangzhou 310058, China ' Institute of Structural Engineering, Zhejiang University, Hangzhou 310058, China

Abstract: Relativistic information entropy was introduced by considering the uncertainties in multi-environmental time similarity (METS) theory for the purpose of predicting the service time of new coastal concrete structures. The similarity ratios of surface chloride concentration and diffusion coefficient between indoor accelerated and outdoor natural environment were established on METS theory. The parameters' variance was considered by applying relativistic information entropy. The prior information was obtained by combining the information of the field inspection and the indoor accelerated tests. The approach has already applied to a crossing-sea bridge in eastern China. The service life was calculated by using Monte Carlo method under a given target reliability. Furthermore, concrete specimens with the same material as the bridge were placed on a field exposure station and the chloride ions concentration was measured regularly. The service-life estimation resulted from the pre-information obtained by considering the objective and subjective uncertainties appears to be conservative and reliable.

Keywords: concrete structures; durability; METS; relativistic information entropy; service life; natural exposure testing; life prediction; verification; coastal structures; China; multi-environmental time similarity; METS; chloride concentration; chloride diffusion coefficient; Monte Carlo method; coastal bridges.

DOI: 10.1504/IJSTRUCTE.2015.067976

International Journal of Structural Engineering, 2015 Vol.6 No.1, pp.33 - 43

Received: 07 Jun 2013
Accepted: 01 Apr 2014
Published online: 12 Mar 2015 *

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Title: Life prediction and verification of coastal concrete structures on relativistic information entropy

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