Kegyes-B. Orsolya*

Risk Analysis and Building Vulnerability

* Széchenyi István Egyetem, Szerkezetépítési Tanszék

Determining the earthquake risk of building stocks or settlements has lately become a prominent issue. Recently the new structures should also be designed according to EC8 in Hungary. Hungary counts to the medium hazardous countries however it was not a practice dimensioning against earthquakes.

Moreover the wind loads were bigger than those gained from earthquake loads. The earthquake loads were underestimated, so with the new standard there is a large building stock that needs reinforcement. This emphasises the importance of assessment of building vulnerability.

The paper presents a comparison between the shear capacities of masonry buildings and the calculated shear forces obtained from loads offered by EC8 based on the national earthquake hazard map. (The peak ground acceleration is 1,14 m/s2 in Győr.) This is presented through two examples.

Stress should be laid on prevention. By assessing the buildings it can be determined which are the constructions that need to be reinforced against earthquakes and a priority list of interventions can be established. This can decrease the expected damage during an earthquake. The main conclusion of the paper consists of the necessity of supervision and reinforcement of several buildings in Hungary.