engleski

Seismic Vulnerability Analysis in Urban and Rural Regions of Visoko, BIH

Seismic vulnerability assessment of existing structures is of extreme importance as it provides information on the possible damage of structures if earthquakes of various intensities are to happen. In the case of scarce information, rapid vulnerability analysis with the application of the macroseismic model with vulnerability index can be implemented. This method is efficient for large- scale analysis as opposed to the detailed approaches which are used for the assessment of individual buildings. In the present study 94 buildings were elaborated of which 56.4% are located in the urban and 43.6% in the rural area. Three types of masonry structures were identified, unreinforced masonry (URM)with flexible floors, URM with rigid floors, and confined masonry. The average vulnerability index is in the range from 0.571 to 1.08 and the average value for the whole database set was 0.733. The most probable earthquake intensities in this region are VI and VII. For the higher intensity, the largest damage is expected for URM with flexible floors where 17.1% would experience significant to severe damage, and 33.2% moderate damage. Confined masonry would have the least damage, 56.8% of the structures would experience no damage at all, 34% slight damage, while only 8.1% moderate damage would be noted.

Seismic analysis ; Masonry structures ; Vulnerability index ; Behavior modifiers

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