Fragility-based assessment of typical mid-rise and low-rise RC buildings in Turkey

Extending displacement-based earthquake loss assessment (DBELA) for the computation of fragility curves

“…Vacareanu, 2004, Akkar et al, 2005, Rossetto and Elnashai, 2005, Erberik, 2008. The methodology that is being proposed herein differs from the aforementioned ones because the method to calculate the nonlinear response of the buildings is simplified and does not suffer from the convergence problems often experienced when using the capacity spectrum method with real accelerograms (e.g.…”

“…As discussed by Rossetto and Elnashai (2005), there is not a unique methodology for the development of fragility functions and therefore, each approach will have its limitations and advantages. Several methodologies (Singhal and Kiremidjian, 1996;Dumova-Jovanoska, 2000;Akkar et al, 2005;Erberik, 2008; amongst others) have been proposed with different levels of simplification and efficiency in the past years. However, it is well established that one of the main drawbacks of any analytical methodology is the required computational effort.…”

Seismic fragility assessment of existing sub-standard low strength reinforced concrete structures

“…buildings with particular importance, structures for which no empirical data are available (innovative structural designs, sub-standard and low strength RC structures). Different researchers Mosalam et al (1997), Lang (2002), Gardoni et al (2003), Franchin et al (2003), Rossetto and Elnashai (2005), Erberik and Elnashai (2005), Erberik (2008), Celik and Ellingwood (2008) have developed fragility curves for the gravity loaded design (GLD) structures of developed countries by using detailed analytical approach. The type of method chosen in these studies for fragility analysis depends not only on the objective of the assessment, but also on the availability of data and technology.…”

“…It should be noted that most analytical vulnerability studies concentrate primarily on the ß exural and, to a smaller extent, shear or bond failures at the member level (Dymiotis et al, 1999;Rossetto and Elnashai, 2005;Ahmed, 2006). Erberik (2008) evaluated the fragility of low and midrise RC structures (bare and in-Þ lled) in Turkey. To incorporate the degrading behaviour, an energy based hysteretic model that accounts for a two parameter low cycle fatigue model was used.…”

“…Singhal and Kiremidjian (1997) used "stripe" analysis, whereas a "cloud" analysis was carried out by Cornell et al (2002) using all the seismic demand data. Celik and Ellingwood (2010) and Erberik (2008) have used the stripe analysis for generating the damage distributions. A demand model was deÞ ned in the existing studies having median seismic demand which was presented as a log-linear function of a ground motion parameter.…”