Abstract
Reinforced Concrete (R.C.) frame structures vary extremely in appearance, design and interaction of structural and non-structural elements. These and other aspects are responsible for the difficulties to present a simple procedure by maintaining the basic inherent assumption of a linear progression of the damage grade with the consecutive intensity grades. The paper takes up the recent state of vulnerability and damage assignment as well as experiences related to the behaviour of infill walls gathered from observations and analytical studies to reveal weak points in the related EMS-98 procedures. Such studies have indicated that the increase of the damage grade of R.C. structures is not always proportional to the increase of intensity grades. Further a proposal for an analytical damage grade definition comparable to the damage grade definition of the EMS-98 will be presented. Conclusions are related to the question: Is there a need to revise EMS-98 guidelines and basic tools? Different elements of information are considered: The World Housing Encyclopedia; the whole surveyed building stock of the test area of the city Antakya/Turkey; results of analytical studies referring to typical representatives of the building stock. There are no serious limits for applying EMS-98 at an international level. The EMS-98 provides an open system for the implementation of new structural systems. For this purpose, the basic assumptions, such as the increase of the damage grade with the severity of shaking have to be considered in relation to the behaviour and already assigned vulnerabilities of the other building types.
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Schwarz, J., Abrahamczyk, L., Leipold, M. et al. Vulnerability assessment and damage description for R.C. frame structures following the EMS-98 principles. Bull Earthquake Eng 13, 1141–1159 (2015). https://doi.org/10.1007/s10518-014-9694-x
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DOI: https://doi.org/10.1007/s10518-014-9694-x