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Eurocode 8 EN1998: Design of Structures for Earthquake Resistance
- Summary:
- Calculations for Eurocode 8: Analysis of seismic isolation system, earthquake action during construction, mononobe-okabe dynamic earth pressure coefficient KAE
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EN1998-1: General rules, seismic actions & rules for buildings
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Seismic Action
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Design acceleration response spectrum (for design of ductile structures in the inelastic range with the behavior factor q)
- Description:
- Calculation of the design response spectrum in terms of spectral acceleration representing the seismic action in the horizontal or vertical direction. Applicable for the design of ductile structures where the inelastic behavior is taken into account explicitly with the behavior factor q.
- According to:
- EN 1998-1:2004 Section 3.2.2.5
- Added on:
- 06 February 2019
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Elastic acceleration and displacement response spectra (for design of structures in the elastic range and calculation of displacements)
- Description:
- Calculation of the elastic response spectrum in terms of spectral acceleration and spectral displacement representing the seismic action in the horizontal or vertical direction. Applicable for the design of structures that remain in the elastic range, seismic isolation systems, and calculation of seismic displacements.
- According to:
- EN 1998-1:2004 Sections 3.2.2.2, 3.2.2.3
- Added on:
- 06 February 2019
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Design of buildings
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Approximate estimation of building's fundamental period
- Description:
- Crude first estimate of the fundamental period for buildings with height up to 40 m
- According to:
- EN 1998-1:2004 Section 4.3.3.2.2
- Added on:
- 19 February 2020
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Seismic Isolation
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Preliminary SDOF analysis of seismic isolation
- Description:
- Preliminary analysis of seismic isolation system with the equivalent linear single-degree-of-freedom (SDOF) method. Applicable for seismic isolation system with FPS, LRB, HDRB isolators and viscous dampers.
- According to:
- EN 1998-1:2004 Section 10.9.2, EN 1998-2:2005+A2:2011 Section 7.5.4
- Added on:
- 23 June 2017
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EN1998-2: Bridges
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Seismic Action
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Design earthquake action during construction phase
- Description:
- Calculation of the reduced earthquake ground acceleration applicable during the construction phase of the structure as a function of the duration of the construction stage (applicable for any type of structure, not only bridges)
- According to:
- EN 1998-2:2005+A2:2011 Annex A
- Added on:
- 23 February 2017
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Analysis
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Estimation of effective stiffness of reinforced concrete ductile bridge piers
- Description:
- Calculation of the effective stiffness of reinforced concrete ductile bridge piers
- According to:
- EN 1998-2:2005+A2:2011 Annex C, Section C.2 - Method 1
- Added on:
- 21 October 2021
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EN1998-5: Foundations & Retaining Structures
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Earth Retaining Structures
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Dynamic earth pressure coefficient for earthquake analysis (Mononobe-Okabe)
- Description:
- Calculation of the dynamic earth pressure coefficient KAE during earthquake loading according to Mononobe-Okabe method
- According to:
- EN 1998-5:2004 Annex E
- Added on:
- 07 July 2017
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