Theory and design of Structures
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EBCS EN 1991 1.7 2014_Final_Accidental Actions_SECURED.pdf6.54 KB
EBCS EN 1991 1.5 2014_Version Final_ThermalActions_SECURED.pdf2.72 KB
Seismic Design to ES EN 1998:2015
Damage Limitation state(ES EN 1998:2015,Art. 2.2.3(1) :
1(P) An adequate degree of reliability against unacceptable damage shall be ensured by satisfying the deformation limits or other relevant limits defined in the relevant parts of the code.
2(P) In Structures important for civil protection the structural system shall be verified to ensure that it has sufficient resistance and stiffness to maintain the function of the vital services in the facilities for seismic event associated with an appropriate return period.
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Seismic design to ES EN 1998:2015
Ultimate limit state(ES EN 1998:2015, Art. 2.2.2)
1(P) It shall be verified that the structural system has the resistance and energy-dissipation capacity specified in relevant parts of the code.
- The resistance and energy-dissipation capacity to be assigned to the Structure are related to the extent to which non-linear response is to be exploited. In operational forms such balance between resistance and energy-dissipation capacity is characterized by the value of the behavior factor q and the associated ductility classification.
3(P) The structure as a whole shall be checked to ensure it is stable under the design seismic action. Both overturning and sliding stability
shall be taken into account.
4(P) It shall be verified that both the foundation elements and the foundation soil are able to resist the action effects resulting from the response of the superstructure without substantial permanent deformations.
5(P) In the analysis the possible influence of second order effects on the values of the action effects shall be taken into account.
6(P) It shall be verified that under the design seismic action the behavior of non-structural elements doesn't present risks to persons and doesn't have a detrimental effect on the response of the structural elements.
@theoryanddesignofstructuresSeismic design to ES EN 1998:2015
ES EN 1998:2015 states the following compliance criteria:
In order to satisfy the fundamental requirements (discussed above) the following limit states shall be checked( ES EN 1998:2015, Art. 2.2.1(1P)):
- ultimate limit state;
- Damage limitation states.
* ultimate limit states are those associated with collapse or with other forms of structural failure which might endanger the safety of people.
* Damage limitation states are those associated with damage beyond which specified service requirements are no longer met.
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