Corrosion Of H-steel Components Eccentric Compression Performance

In corrosive environment or natural environment, Steel structure will inevitably suffer damage. Steel corrosion will reduce the member section and the steel yield strength, ultimate strength, yield ratio, mechanical properties of elongation which severely affecting the safety of steel structures. So studing the mechanical properties of steel corrosion and degradation of material properties will not only find the degradation of mechanical properties of the mechanism of steel structure in-service,but also provide a theory base which consistent with the mechanical properties of steel corrosion.By the corrosion of steel coupled effect and multi-factor uncertainty, this paper discusses the characteristics of atmospheric corrosion of steel coating,and establish a basis for research bearing properties of the corroded coated steel.The effect of uniform corrosion and localized corrosion on the stability of structure is analyzed by the mechanical way, the establishment of a corrosion specimen torsional buckling under the load variation, and analyzes the local corrosion area on the torsional buckling load of it.We can use ANSYS to simulate the capacity of corrosive H-steel columns under eccentric compression to discusses the corroded H-steel column eccentric compression performance and juxtapose the corroded H-steel eccentric compression bearing capacity in different situation.