Abstract
The paper presents the method of local plastic buckling to determine the available ductility of a steel structure subjected to seismic actions. The specialized computer program DuctRot-M is developed with the aim of determining the ultimate plastic rotation. The main factors influencing the rotation capacity are included in program: section type, material properties, member dimensions, moment variation, buckling type, influence of strain rate, influence of cyclic loading, etc. The validation of computer program is performed comparing the obtained values with experimental and numerical results. The result accuracy is confirmed by this comparison. Due also to the friendly interface, the program is useful in design practice.
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