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Earthquakes and Structures Volume 11, Number 4, October 2016 , pages 629-648 DOI: https://doi.org/10.12989/eas.2016.11.4.629 |
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Seismic vulnerability of old confined masonry buildings in Osijek, Croatia |
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Marijana Hadzima-Nyarko, Gordana Pavic and Marija Lesic
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| Abstract | ||
| This paper deals with 111 buildings built between 1962 and 1987, from various parts of the city of Osijek, for which, through the collection of documentation, a database is created. The aim of this paper is to provide the first steps in assessing seismic risk in Osijek applying method based on vulnerability index. This index uses collected information of parameters of the building: the structural system, the construction year, plan, the height, i.e., the number of stories, the type of foundation, the structural and non-structural elements, the type and the quality of main construction material, the position in the block and built-up area. According to this method defining five damage states, the action is expressed in terms of the macroseismic intensity and the seismic quality of the buildings by means of a vulnerability index. The value of the vulnerability index can be changed depending on the structural systems, quality of construction, etc., by introducing behavior and regional modifiers based on expert judgments. Since there is no available data of damaged buildings under earthquake loading in our country, we will propose behavior modifiers based on values suggested by earlier works and on judgment based on available project documentation of the considered buildings. Depending on the proposed modifiers, the seismic vulnerability of existing buildings in the city of Osijek will be assessed. The resulting vulnerability of the considered residential buildings provides necessary insight for emergency planning and for identification of critical objects vulnerable to seismic loading. | ||
| Key Words | ||
| seismic vulnerability assessment; building typology; macroseismic method | ||
| Address | ||
| Faculty of Civil Engineering Osijek, University of J.J. Strossmayer in Osijek, Osijek, Croatia | ||