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DEVELOPING FRAGILITY CURVES AS AN EFFICIENT METHOD FOR ASSESSING COMMON RETROFIT METHODS OF PILE-SUPPORTED WHARVES

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Year: 2018
COI code: ICOPMAS13_103
Paper Language: English

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Authors DEVELOPING FRAGILITY CURVES AS AN EFFICIENT METHOD FOR ASSESSING COMMON RETROFIT METHODS OF PILE-SUPPORTED WHARVES

  Mohsen Soltani - Department of Civil Engineering, University of Qom, Qom, Iran
  Rouhollah Amirabadi - Department of Civil Engineering, University of Qom, Qom, Iran

Abstract:

The aim of this study is proposing fragility analysis as an efficient method to evaluate common retrofit methods (FRP and batter pile) for pile-supported wharves damaged by aging effect in harsh environment of sea. In this study, fragility curves are developed for the concrete pilesupported wharf located in Persian Gulf by Capacity Spectrum Method (CSM) [1]. To compare retrofit methods, the wharf is modeled in ABAQUS 6.12. Then, results are shown in four different conditions i.e. before aging effect (initial condition), after aging effect (damaged condition), and retrofitted conditions (FRP without batter pile and FRP with batter pile). The damaged condition is considered for the splash zone having the highest corrosion rate among the other zones. In this zone, the behavior of damaged concrete is modeled according to the physical modeling carried out for concrete material in Persian Gulfenvironment [2], and for rebar, the corrosion rate proposed by OCDI is considered [5]. To retrofit the damaged model, at first, FRP layer is wrapped around damaged areas. Then,the batter pile with the degree of 43º is attached by rubber isolator (Figure 1). CSM is a Pushover (SPO) based method which measures performance points of structures under scaledselected spectrum. Here, this method is performed by choosing 8 records (Table 2), and the probability of the responses exceeding from the damage states, defined byPIANC [6], is obtained. The cross section of the wharf and property of soil layers are respectively displayed in Figure 1 and Table 1 [3]. The soil layer is modeled by MohrCoulomb theory.

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COI code: ICOPMAS13_103

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Soltani, Mohsen & Rouhollah Amirabadi, 2018, DEVELOPING FRAGILITY CURVES AS AN EFFICIENT METHOD FOR ASSESSING COMMON RETROFIT METHODS OF PILE-SUPPORTED WHARVES, 13th International Conference on Coasts, Ports and Marine Structures, تهران, سازمان بنادر و دريانوردي, https://www.civilica.com/Paper-ICOPMAS13-ICOPMAS13_103.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Soltani, Mohsen & Rouhollah Amirabadi, 2018)
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Type: state university
Paper No.: 3501
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