The 1900 vintage main truss spans of the St Andrews Lock and Dam, comprised of detailed, built-up, riveted latticed steel members, were successfully metallized using zinc aluminium (85/15) wire material during the 1998/1999 Manitoba winter. Over 380,000 ft2 of structural steel was coated in the seven, 40-m-long spans. This was the largest metallizing project in North America at that time. A five-year case study of this project, evaluates the key elements to this project.s success, which include the coating selection process and the life cycle cost analysis, construction inspection arrangement and innovative five-year warranty arrangement with a $300,000 returnable incentive. The life cycle cost analysis explores the need to critically evaluate real long-term costs required to maintain a structure over a selected 50-year service life. The unique 5 year warranty arrangement examines methods to add incentive, to motivate contractors to "take ownership" to provide superb workmanship and to protect the owner's interest. For the covering abstract of this conference see ITRD number E211395.
Samenvatting