Analysis and guidelines for implementation of EN 1090-2 Standard to assist execution class assignment of steel structures
Kovshova, Marina (2015)
Diplomityö
2015
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi-fe2015122225259
https://urn.fi/URN:NBN:fi-fe2015122225259
Tiivistelmä
Finnish design and consulting companies are delivering robust and cost-efficient steel
structures solutions to a large number of manufacturing companies worldwide. Recently
introduced EN 1090-2 standard obliges these companies to specify the execution class of
steel structures for their customers. This however, requires clarifying, understanding and
interpreting the sophisticated procedure of execution class assignment. The objective of
this research is to provide a clear explanation and guidance through the process of
execution class assignment for a given steel structure and to support the implementation
of EN 1090-2 standard in Rejlers Oy, one of Finnish design and consulting companies.
This objective is accomplished by creating a guideline for designers that elaborates on the
four-step process of the execution class assignment for a steel structure or its part. Steps
one to three define the consequence class (projected consequences of structure failure),
the service category (hazards associated with the service use exploitation of steel
structure) and the production category (manufacturing process peculiarities), based on the
ductility class (capacity of structure to withstand deformations) and the behaviour factor
(corresponds to structure seismic behaviour). The final step is the execution class
assignment taking into account results of previous steps. Main research method is indepth
literature review of European standards family for steel structures. Other research
approach is a series of interviews of Rejlers Oy representatives and its clients, results of
which have been used to evaluate the level of EN 1090-2 awareness. Rejlers Oy will use
the developed novel coherent standard implementation guideline to improve its services
and to obtain greater customer satisfaction.
structures solutions to a large number of manufacturing companies worldwide. Recently
introduced EN 1090-2 standard obliges these companies to specify the execution class of
steel structures for their customers. This however, requires clarifying, understanding and
interpreting the sophisticated procedure of execution class assignment. The objective of
this research is to provide a clear explanation and guidance through the process of
execution class assignment for a given steel structure and to support the implementation
of EN 1090-2 standard in Rejlers Oy, one of Finnish design and consulting companies.
This objective is accomplished by creating a guideline for designers that elaborates on the
four-step process of the execution class assignment for a steel structure or its part. Steps
one to three define the consequence class (projected consequences of structure failure),
the service category (hazards associated with the service use exploitation of steel
structure) and the production category (manufacturing process peculiarities), based on the
ductility class (capacity of structure to withstand deformations) and the behaviour factor
(corresponds to structure seismic behaviour). The final step is the execution class
assignment taking into account results of previous steps. Main research method is indepth
literature review of European standards family for steel structures. Other research
approach is a series of interviews of Rejlers Oy representatives and its clients, results of
which have been used to evaluate the level of EN 1090-2 awareness. Rejlers Oy will use
the developed novel coherent standard implementation guideline to improve its services
and to obtain greater customer satisfaction.