In case of old metal constructions, where the loadbearing structure dominates, material issues have a great influence on the behaviour of the construction both in terms of function and safety. Old metal constructions generally have a monumental nature, so preservation, restoration and rehabilitation works are inseparable from material issues. Due to this monumental nature, research into the material generally allows only minor damage, therefore these investigations require the use of special methods.
Earthquake zones cover a significant part of our earth, therefore, when planning and designing residential areas, factories, or other human establishments, professionals have to take into account the seismic hazard of that area. The current earthquake standard in Romania is based on the European code. This paper presents, beside the most significant structural composition rules, the applicable methods that can be used to ensure sufficient load bearing requirements.