A unified structural analysis method to predict long-term mechanical performance of steel structures considering corrosion and repair

• Autorzy: Goto Y. , Kawanishi N.
• Języki publikacji: EN

Abstrakty

EN

A unified structural analysis method is developed in order to take into account the histories of corrosion loss of material and repair on their long-term mechanical performance of steel structures in addition to the histories of the damages caused by excessive external loads, e.g. big seismic loads. This analysis method is characterized by the point that the volume change in material due to corrosion or repair is adopted as a new controlling parameter in addition to the conventional parameters such as load and displacement. By introducing this new parameter, the histories of corrosion and repair process under dead loads is precisely simulated. That is, the change in residual stress and deformation caused by corrosion under dead loads can be accurately evaluated at an arbitrary point of their lifetime. As a result, the effect of this change in residual stress and deformation can be reflected in assessing the ultimate behavior of steel structures, thus improving the accuracy of predicting the long-term mechanical performance of steel structures.

Słowa kluczowe

EN

corrosion; repair; finite element method; long-term mechanical performance

PL

metoda elementów skończonych; korozja; działanie mechaniczne

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2004
• Tom: Vol. 9, no 1
• Strony: 91--104
• Opis fizyczny: Bibliogr. 4 poz., rys., tab., wykr.

Twórcy

autor

Goto Y.

• Department of Civil Engineering, Nagoya Institute of Technology Gokiso-cho, Showa-ku, Nagoya 466-8555, JAPAN

autor

Kawanishi N.

• Research Associate, Toyota National College of Technology Eisei-cho, Toyota 471-8525, JAPAN

Bibliografia

• [1] [1] ABAQIS Users Manual 5.8 (1999), HKS, Inc.
• [2] ABAQIS Theory Manual 5.8 (1999), HKS, Inc.
• [3] Goto Y. and Kawanishi N. (2001): Long-term strength estimation of steel structures considering histories of corrosion loss and repair. - Proc. of First International Conference on Steel and Composite Structures, Pusan, Korea, vol.l, pp.117-124.
• [4] Kulicki J.M., Prucz Z., Sorgenfrei D.F., Merts D.R. and Young W.T. (1990): Guidelines for Evaluating Corrosion Effects in Existing Steel Bridges. - National Cooperative Highway Research Program, Report 333.