### UDC:

[691.714:620.18:669.018.58-122-418]:621.77.016.3

### Pages:

210-213

### Annotation:

The paper deals with issues concerning the calculation of the welded metal structures working in hostile corrosion environment and exposed to corrosion depreciation. There was implemented an assessment of applicability of mathematical models of corrosion depreciation at calculating durability of the welded steel truss. It was established that the operating stresses in the elements of the steel welded truss with taking into account the long period of the corrosion environment influence provides a good coincidence of calculated values of fractional - linear and logistic models, which allows to recommend them for calculation of the welded metalwork which is in two-dimension state of stress.

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