Vulnerability Of Angarsk-City School Buildings Stock Evaluation Within the Regional Seismic Safety Program of the Irkutsk Region
Vulnerability Of Angarsk-City School Buildings Stock Evaluation Within the Regional Seismic Safety Program of the Irkutsk Region

Vulnerability Of Angarsk-City School Buildings Stock Evaluation Within the Regional Seismic Safety Program of the Irkutsk Region

Authors:  

Berzhinskaya L.P.
канд. техн. наук, ст. научн. сотрудник, (Институт земной коры (ИЗК) СО РАН, Иркутск)

Бержинский Ю.А. Berzhinsky Yu.A.
канд. геол.-минерал. наук, заведующий ЛСС, (Институт земной коры (ИЗК) СО РАН, Иркутск)


Rubric:     Design, building and reconstruction of aseismic constructions   
Annotation:

According to the maps of general seismic zoning GSZ-97, the seismicity of the Angarsk-city area (Irkutsk region) was increased from 2000 from 7 to (8, 8, 9) points. Among 200000 m2, one third of the school buildings stock was built in the period of 1949?64 using anti-seismic methods in accordance with the standard CH-8?57. According to the classification scales MSK-64 and MMSK-86, these buildings belong to the types A and B with the level 5 and 6 of seismic resistance. The rest of the school buildings belongы to the class C7. The calculations show that the individual seismic risk of a 7?magnitude earthquake is classified as a level of «acceptable» risk, the seismic risk of a 8?point earthquake is considered as a «high» risk level. A relative damage extent for the school buildings stock would be evaluated as 0.08 and 0.41, respectively.

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