ABSTRACT
Currently, many historical objects, which are a sign of the times in which they were created, require intervention due to their condition, and it is our duty to ensure that they will last as long as possible. The unique nature of such objects, as well as their grandeur and unconventional design solutions, require of today's engineers to become more involved in the process of determining the safety factor. In order to obtain a full insight into the condition of the object itself and the material from which the given historical structure was made, knowledge of many issues related to e.g. dynamic and fatigue effects, material problems including: corrosion, impact strength, weldability, etc. are required. Therefore, the authors attempted to determine certain dependencies for this type of objects based on their own experience in modernizing structures with a history of approximately 100 years.
