Title: Structural performance evaluation of heavily deteriorated RC members based on simplified inspection results

Authors: Yuichiro Kawabata; Ema Kato; Mitsuyasu Iwanami

Addresses: Structural Mechanics Division, Port and Airport Research Institute, 3-1-1, Nagase, Yokosuka, 239-0826, Japan. ' Structural Mechanics Division, Port and Airport Research Institute, 3-1-1, Nagase, Yokosuka, 239-0826, Japan. ' Structural Mechanics Division, Port and Airport Research Institute, 3-1-1, Nagase, Yokosuka, 239-0826, Japan

Abstract: Port and harbour structures are generally affected by harsh marine environmental actions. Material deterioration and damage to structural components are likely to occur throughout structure's service period. In order to select suitable methods of countermeasures for such structures, structural evaluation by using simplified inspection results shall be necessary. The methodology and accuracy of structural performance evaluation based on simplified inspection results, however, are not made clear to evaluate structural performance by using simplified inspection results so far. This paper reports the evaluated results of structural performance of heavily deteriorated RC members serviced in marine environments for 44 years based on simplified inspection. The RC members were extracted from an existing port structure, and loading tests were conducted after simplified inspection. The method of simplified inspection was selected to be used in the field. The accuracy of evaluation with simplified inspection was discussed.

Keywords: port structures; harbour structures; chloride-induced deterioration; structural performance; disbonded reinforcement; simplified inspection; concrete structures; marine environments; reinforced concrete; chloride-induced corrosion; rebar corrosion.

DOI: 10.1504/IJSTRUCTE.2013.050765

International Journal of Structural Engineering, 2013 Vol.4 No.1/2, pp.75 - 85

Received: 08 May 2021
Accepted: 12 May 2021

Published online: 02 Dec 2012 *

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