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NEN-EN 1998-3

Eurocode 8 - Design of structures for earthquake resistance - Part 3: Assessment and retrofitting of buildings and bridges

pending
Organization: NEN
Publication Date: 1 September 2023
Status: pending
Page Count: 204
ICS Code (Technical aspects): 91.010.30
ICS Code (Seismic and vibration protection): 91.120.25
scope:

Scope of prEN 1998-3

(1) This document is applicable to the assessment and retrofitting of buildings and bridges in seismic regions, namely as given in a) to c):

a) To provide criteria for the assessment of the seismic performance of existing individual buildings and bridges;

b) To describe the procedure to be followed in selecting necessary corrective measures;

c) To set forth criteria for the design of retrofitting measures (i.e. design, structural analysis including intervention measures, final dimensioning of structural parts and their connections to existing structural members).

NOTE 1 For the purposes of this standard, retrofitting covers both the seismic upgrading (e.g. strengthening or adding a passive system) of undamaged structures and the repair and possible upgrading of earthquake-damaged structures.

NOTE 2 Annex E gives flowcharts for the application of this standard.

(2) Unless specifically stated, prEN 1998-1-1 and prEN 1998-5 apply.

(3) Reflecting the performance requirements of prEN 1998-1-1:2022, 4.1, this standard covers the seismic assessment and retrofitting of buildings and bridges made of the more commonly used structural materials: concrete, steel and composite, timber and masonry.

NOTE Annexes B, C and D contain additional guidance related to the assessment of reinforced concrete, timber and masonry structures, respectively, and to their retrofitting when necessary.

(4) This standard is intended for the assessment of individual structures, to decide on the need for structural intervention and to design the retrofitting measures that may be necessary. It is not intended for the vulnerability assessment of populations or groups of structures in seismic risk evaluations for various purposes (e.g. for determining insurance risk, for setting risk mitigation priorities, etc.).

(5) This standard provides (in its material-specific Clauses 8 to 11) criteria for the verification of the more common retrofitting techniques currently in use.

(6) This document gives specific rules for the assessment and retrofitting relevant to existing buildings and bridges of consequence classes CC1, CC2 and CC3, as defined in EN 1990:2023, 4.3.

(7) Although the provisions of this standard are applicable to all common categories of buildings and bridges, the seismic assessment and retrofitting of monuments and heritage structures often requires different types of provisions and approaches, depending on the nature of the monuments.

Assumptions

(1) The assumptions of prEN 1998-1-1:2022, 1.2, are assumed to be applied.

(2) The provisions of this standard assume that the data collection and tests are performed by experienced personnel and that the engineer responsible for the assessment, the possible design of the retrofitting and the execution of work has appropriate experience of the type of structures being upgraded or repaired.

(3) Inspection procedures, checklists and other data-collection procedures should be documented and filed and should be referred to in the assessment/design documents.

Document History

NEN-EN 1998-3
September 1, 2023
Eurocode 8 - Design of structures for earthquake resistance - Part 3: Assessment and retrofitting of buildings and bridges
Scope of prEN 1998-3 (1) This document is applicable to the assessment and retrofitting of buildings and bridges in seismic regions, namely as given in a) to c): a) To provide criteria for the...
August 1, 2013
Eurocode 8: Design of structures for earthquake resistance - Part 3: Assessment and retrofitting of buildings
A description is not available for this item.
July 1, 2005
Eurocode 8: Design of structures for earthquake resistance - Part 3: Assessment and retrofitting of buildings
Guidelines for the evaluation of the seismic performance of existing structures, the selection of corrective measures and the design of repair and/or strengthening measures with additional...

References

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