Maintenance of early reinforced-concrete road bridges in Aberdeenshire, Scotland

Autor:	Kieran O'Connor, Gillian Cunningham, Donald MacPherson, Blair Wynd
Rok vydání:	2019
Předmět:	Engineering business.industry Local government Forensic engineering Asset management Building and Construction business Reinforced concrete Civil and Structural Engineering
Zdroj:	Proceedings of the Institution of Civil Engineers - Bridge Engineering. 172:293-302
ISSN:	1751-7664 1478-4637
DOI:	10.1680/jbren.18.00063
Popis:	This paper describes the development of long-term asset management plans for five early reinforced-concrete bridges in Aberdeenshire, Scotland. The bridges were constructed between 1924 and 1938 and are significant in terms of strategic importance and/or size, with total lengths ranging from 62 to 192 m. Identified defects included leakage, cracking, delamination, spalling and reinforcement corrosion. Detailed inspections, material testing and structural assessments were undertaken for each bridge to assess the current condition and capacity. Future deterioration models were developed to estimate when weight restrictions and replacement would become necessary and to determine optimal intervention dates. Several strategies were reviewed, including minimal maintenance, programmed maintenance, strengthening and replacement. Whole-life costs were developed for each strategy to identify the most cost-effective long-term solution.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bf35e34aff01238314264b3bbeaea8c9 https://doi.org/10.1680/jbren.18.00063 Zobrazit plný text záznamu