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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50401

Title: SERVICE LIFE PREDICTION OF PIER FOR THE EXISTING REINFORCED CONCETE BRIDGES IN CHLORIDE-LADEN ENVIRONMENT
Authors: Ming-Te Liang
Ran Huang
Shen-An Feng
Chi-Jang Yeh
Contributors: 國立臺灣海洋大學:河海工程學系
Keywords: bridge
corrosion
pier
reinforced concrete
service life prediction
Date: 2009-10
Issue Date: 2018-10-08T02:20:20Z
Publisher: Journal of Marine Science and Technology
Abstract: Abstract: The prediction method of service life for bridge structures is
played an important role of bridge management system. In
this paper, the mathematical modeling was to study the servise
life prediction of pier for existing reinforced concrete (RC)
bridge exposed to chloride environment. The corrosion process
has three stages, the initiation time (tc), the depassivation
time (tp), and the corrosion (propagation) time (tcorr). The total
service life of pier for the existing RC bridge can be expressed
as t = tc + tp + tcorr. Many mathematical models were applied to
predicting each value of the tc, tp, and tcorr. The Fick’s second
law, the average of Bazant and Proposed methods, and the
modified Bazant method are suggested to estimate the values
of tc, tp, tcorr, respectively. The Tzyh-chyang and Dah-duh RC
bridges in Taiwan were provided illustrative examples for the
modeling approaches and service life of predictions. The predicted
results used mathematical models may be reasonable
for the pier service life of the existing Tzyh-chyang and
Dah-duh RC bridges. The results of present study may help to
offer a basis for repair, strengthening, and demolition of existing
RC bridges.
Relation: 17(4) pp.312-319
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50401
Appears in Collections:[河海工程學系] 期刊論文

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