Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Planning and structural design
   4.1 Basic requirements
   4.2 Recommendations for the design of
       structures in earthquake zones
   4.3 Regularity of the structure
       4.3.1 General
       4.3.2 Criteria for regularity in plan
       4.3.3 Criteria for regularity in elevation
5 Seismic action
   5.1 Earthquake zones
   5.2 Ground conditions, geology and foundation soil
       5.2.1 General
       5.2.2 Geological ground types
       5.2.3 Foundation soil ground types
   5.3 Importance classes and importance factors
   5.4 Normal description of seismic action
       5.4.1 General
       5.4.2 Elastic response spectrum
       5.4.3 Design spectrum for linear analysis
             calculations
       5.4.4 Ground displace
   5.5 Combinations of the seismic action
       with other actions
6 Structural analysis
   6.1 Modelling
   6.2 Analysis methods
       6.2.1 General
       6.2.2 Simplified response spectra method
       6.2.3 Response spectra method taking into
             account multiple vibration modes
       6.2.4 Combination of the loads due to
             components of seismic action
   6.3 Calculation of deformations
   6.4 Non-structural
7 Stability analysis (Verification that the
   structure will not collapse)
   7.1 General
   7.2 Ultimate limit state
       7.2.1 General
       7.2.2 Structural load resistance requirement
       7.2.3 Ductility requirement
       7.2.4 Equilibrium requirement
       7.2.5 Load resistance of foundations
       7.2.6 Seismic joint requirements
8 Specific rules for concrete buildings
   8.1 General
       8.1.1 Scope
       8.1.2 Ductility classes
       8.1.3 Verification of safety
   8.2 Specifications for concrete buildings of
       ductility class 1
   8.3 Specifications for concrete buildings of
       ductility class 2
       8.3.1 Local ductility
       8.3.2 Materials
       8.3.3 Structural types and behaviour factors
       8.3.4 Design criteria
       8.3.5 Anchorages, joints and splices
       8.3.6 Requirements for beams
       8.3.7 Requirements for columns
       8.3.8 Requirements for walls
   8.4 Specific rules for mushroom floors and flat slabs
9 Specific rules for steel buildings
   9.1 General
       9.1.1 Scope
       9.1.2 Ductility classes
       9.1.3 Safety verification
   9.2 Specifications for steel structures of ductility
       class 1
   9.3 Design criteria for steel structures of
       ductility classes 2 and 3
       9.3.1 Materials
       9.3.2 Capacity design
       9.3.3 Behaviour factor [q]
       9.3.4 Monitoring of planning and fabrication
       9.3.5 Design criteria for steel structures of
             ductility classes 2 and 3
10 Specific rules for timber buildings
   10.1 General
   10.2 Safety verification
   10.3 Rules for detailing structures of ductility
        classes 2 and
11 Specific rules for masonry buildings
   11.1 General
   11.2 Special requirements for masonry materials
   11.3 General design rules
   11.4 Additional design rules for confined masonry
   11.5 Additional design rules for reinforced masonry
   11.6 Design rules for masonry buildings for which
        no calculations verifying the ultimate limit state
        for a seismic load situation are carried out
   11.7 Verification analysis calculations
        for masonry buildings
        11.7.1 General
        11.7.2 Structural model
        11.7.3 Ultimate limit state verification
12 Specific rules for foundations
   and retaining structures
   12.1 Foundations
        12.1.1 Verification of load resistance
        12.1.2 Design requirements and recommendations
   12.2 Retaining structures
        12.2.1 Soil and water pressure
        12.2.2 Verification of load resistance