Capacity spectrum method based on inelastic demand spectra

Fajfar, Peter

doi:10.1002/(sici)1096-9845(199909)28:9<979::aid-eqe850>3.0.co;2-1

Cited by 720 publications

(487 citation statements)

References 6 publications

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“…In fact, the model acts like an R-μ-p TT relation, which must be combined with site-specific information on pulse period and likelihood of directivity. As such, it could be employed in a manner analogous to the methodology of [5] in order to render a static non-linear procedure, for example the capacity spectrum method [17], applicable in NS conditions.…”

Section: Illustrative Applicationmentioning

confidence: 99%

Near -Source Pulse-Like Seismic Demand for Multi-Linear Backbone Oscillators

Baltzopoulos¹,

Vamvatsikos²,

Iervolino³

2015

Proceedings of the 5th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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Section: Illustrative Applicationmentioning

confidence: 99%

Near -Source Pulse-Like Seismic Demand for Multi-Linear Backbone Oscillators

Baltzopoulos¹,

Vamvatsikos²,

Iervolino³

2015

Proceedings of the 5th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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“…Consequently, the seismic behaviour of this class of buildings can be expressed in terms of their 'average' pushover curve. The capacity spectrum method (Freeman 1998) based on inelastic demand spectra (Fajfar 1999) is used here to relate pushover curves with seismic demand. Thus, pushover curves are transformed into capacity curves, i.e.…”

Section: Capacity Curvesmentioning

confidence: 99%

Fragility Curves and Loss Estimation for Traditional Timber-Framed Masonry Buildings in Lefkas, Greece

Kouris

Kappos

2015

Computational Methods in Applied Sciences

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This is the accepted version of the paper.This version of the publication may differ from the final published version. Abstract The 2003 earthquake in the Greek island of Lefkas, has revived the interest for the local anti-seismic technique based on the use of timber-framed masonry, whose adequate performance during the earthquake revealed the merits of this rather sophisticated, albeit traditional, construction. A key feature of the Lefkas structures is their dual structural system. The secondary system is activated once the ground storey stone masonry piers of the primary system (which includes timber-framed masonry in all storeys) fail. In this regard, two different structural models are presented herein to simulate the response of each system. A macro-model based on nonlinear (NL) strut elements and point plastic hinges is intended to model the timber-framed masonry. NL analyses are carried out for one, two and three storey buildings , which represent the most common cases in Lefkas. Furthermore, an investigation is carried out regarding the foundation of the buildings resting on soft alluvial deposits. Pushover curves are derived from the NL analyses of the buildings and are then converted to capacity curves using the characteristics of the predominant mode. On these curves four damage states (slight damage, moderate damage, heavy damage, and collapse) are defined on the basis of criteria related to the actual response of the building. Then, fragility curves in terms of spectral displacement are generated, adopting a log-normal statistical distribution. These curves are converted into PGA values using a selected response spectrum. Utilising these fragility curves a seismic loss scenario for the 2003 Lefkas earthquake is developed for the timber-framed masonry stock of Lefkas city. Permanent repository link

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“…The seismic behaviour of this building type can then be expressed in terms of an 'average' pushover curve. The capacity spectrum method [17] based on inelastic demand spectra [18] is used here to relate pushover curves with seismic demand. So, pushover curves are transformed into capacity curves, i.e.…”

Section: Derivation Of Fragility Curvesmentioning

confidence: 99%