Optimum maintenance of deteriorated steel bridges using corrosion resistant steel based on system reliability and life-cycle cost

2021 ◽  
Vol 243 ◽  
pp. 112633
Author(s):  
Xu Han ◽  
David Y. Yang ◽  
Dan M. Frangopol
Keyword(s):  
Life Cycle ◽  
System Reliability ◽  
Life Cycle Cost ◽  
Steel Bridges ◽  
Corrosion Resistant Steel ◽  
Resistant Steel ◽  
Corrosion Resistant

Risk-based life-cycle optimization of deteriorating steel bridges: Investigation on the use of novel corrosion resistant steel

2020 ◽  
pp. 136943322098052
Author(s):  
Xu Han ◽  
David Y Yang ◽  
Dan M Frangopol
Keyword(s):  
Life Cycle ◽  
Carbon Steel ◽  
Economic Benefits ◽  
Steel Bridges ◽  
Maintenance Cost ◽  
Corrosion Resistant Steel ◽  
Resistant Steel ◽  
Corrosion Resistant ◽  
Structural Deterioration ◽  
Material Cost

Corrosion-induced material loss can reduce the load-carrying capacity of structures, resulting in an increase of the probability and risk of failure. Currently, carbon steel is predominantly used in steel bridges due to its relatively low material cost, ease of fabrication at large scale and excellent material strength. However, low corrosion resistance of carbon steel can result in severe deterioration of bridges. As a result, a very high maintenance cost may be incurred during the service life of carbon steel bridges. A new type of corrosion-resistant steel, A709-50CR, has been recently developed for bridge construction. Despite its relatively high material cost, A709-50CR has the potential to reduce the life-cycle maintenance cost and mitigate the increasing failure risk due to structural deterioration. To further reduce the cost of using A709-50CR steel, this paper explores the prospect of using it for major bridge maintenance actions. Bi-objective optimization is conducted to determine when and which carbon steel girders should be replaced using A709-50CR during the life-cycle of a bridge. The two objectives in the optimization problem are to minimize life-cycle risk and life-cycle maintenance cost. The results indicate that using A709-50CR in major maintenance actions can achieve considerable economic benefits.

REMANIT 4439

Alloy Digest ◽  
1993 ◽  
Vol 42 (11) ◽  
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Stainless Steels ◽  
Crevice Corrosion ◽  
Heat Treating ◽  
Corrosion Resistant Steel ◽  
Resistant Steel ◽  
Low Carbon ◽  
Corrosion Resistant ◽  
Mechanical Properties And Corrosion

Abstract REMANIT 4439 is a highly corrosion resistant steel with low carbon content, an addition of nitrogen to enhance both mechanical properties and corrosion resistance, and higher molybdenum than most stainless steels to resist pitting and crevice corrosion in chloride media. This datasheet provides information on composition, physical properties, and elasticity. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-556. Producer or source: Thyssen Stahl AG.

ARMCO 410 Cb

Alloy Digest ◽  
1963 ◽  
Vol 12 (7) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
Corrosion Resistant Steel ◽  
Resistant Steel ◽  
Corrosion Resistant ◽  
Temperature Performance

Abstract Armco 410 Cb is a modified Type 410 corrosion resistant steel by the addition of columbium. It is extremely tough and impact resistant. It is a hardenable grade but less sensitive to tempering variables than Type 410. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness, creep, and fatigue. It also includes information on low and high temperature performance, and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-145. Producer or source: Armco Inc., Eastern Steel Division. See also Alloy Digest SS-261, October 1971.

RA 309

Alloy Digest ◽  
1963 ◽  
Vol 12 (4) ◽  
Keyword(s):  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
High Temperatures ◽  
Heat Treating ◽  
Corrosion Resistant Steel ◽  
Resistant Steel ◽  
Corrosion Resistant ◽  
Temperature Performance

Abstract RA 309 is a chromium-nickel heat and corrosion resistant steel recommended for high temperatures applications. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-142. Producer or source: Rolled Alloys Inc..

USS CARILLOY 2% Cr-1/2% Mo

Alloy Digest ◽  
1957 ◽  
Vol 6 (1) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Heat Treating ◽  
Corrosion Resistant Steel ◽  
Resistant Steel ◽  
Corrosion Resistant ◽  
United States Steel Corporation ◽  
Temperature Performance ◽  
Alloy Oxidation ◽  
Oxidation And Corrosion

Abstract CARILLOY 2% Cr-1/2% Mo is a low alloy oxidation and corrosion resistant steel suitable for moderately high (900-1100 deg. F.) temperature use. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness and creep. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SA-54. Producer or source: United States Steel Corporation.

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