Lifecycle cost assessment of high strength carbon and stainless steel girder bridges

JOURNAL OF ENVIRONMENTAL MANAGEMENT

卷:277

Article

Karabulut, Burak¹  Ferraz, Goncalo¹  Rossi, Barbara^1,2 

[1] KU, Dept Civil Engn, Jan Pieter de Nayarita 5, St Katelijne Waver, Belgium

[2] Univ Oxford, Dept Engn Sci, Oxford, England

关键词: Bridge design;    Comparative lifecycle cost assessment (LCCA);    Fatigue verification;    Duplex stainless steel;    Hot spot stress method;   

DOI  :  10.1016/j.jenvman.2020.111460

来源: Elsevier

【 摘 要 】

This paper addresses the lifecycle cost assessment of a steel girder bridge considering the material costs and maintenance activities along the bridge's lifecycle. A reference highway bridge case study is chosen. It was initially designed using carbon steel S355. Two more steel grades are included in the comparison: high strength carbon steel S460 and duplex stainless steel EN 1.4162. For each design option, fatigue appears to be the driving design criterion for the following critical welded details: transversal stiffeners, cope holes and full penetration butt welds in the flanges. In addition to ultimate limit state verifications, specific attention is therefore given to fatigue through the use of different verification methods: the well-known nominal stress method and the hot spot stress method. It is concluded that the net present value of the lifecycle cost of the stainless steel option is attractive compared to painted the carbon steel options.

【 授权许可】

Free