000010824 001__ 10824
000010824 005__ 20141205155807.0
000010824 04107 $$aeng
000010824 046__ $$k2008-10-12
000010824 100__ $$aMaeda, Masaki
000010824 24500 $$aEffect of Seismic Retrofit on Seismic Risk Mitigation for Reinforced Concrete Buildings

000010824 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010824 260__ $$b
000010824 506__ $$arestricted
000010824 520__ $$2eng$$aIt is of great importance to assess the seismic risk of existing buildings located in a high seismic region to avoid destructive damage due to severe earthquakes. In Japan, seismic capacity evaluation and strengthening have been applied to existing buildings especially after the 1995 Hyogoken-Nambu Earthquake. Judging criteria in seismic capacity for screening candidates to strengthening and required capacity level is generally set to harmonize with current seismic code. However, there has been few study that tried to prove the effect of seismic retrofit on mitigation of seismic risk such as damage ratio, repair cost, and number of injuries and death induced by severe earthquake. In this paper, therefore, the effect by seismic retrofit is investigated. First, the relationship between seismic capacity and damage ratio of reinforced concrete buildings suffered 1995 Hyogoken-Nambu Earthquake is discussed. Secondly, seismic capacity of public buildings in Sendai City before and after seismic retrofit is statistically examined and distribution of seismic capacity of R/C public buildings is calculated. Damage ratio due to earthquakes, which are expected to attack Sendai City in the near future, is estimated by probabilistic approach for both before and after retrofit. The cost for repair and reconstruction of damaged buildings based on the estimated damage ratio and the effect of seismic retrofit on mitigation of seismic risk is examined. Finally, parametric study with different target seismic capacity for retrofit is carried out and the relationship between the target seismic capacity and predicted seismic risk was discussed from a cost point of view.

000010824 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010824 653__ $$aSeismic retrofit, Risk mitigation, RC building, Damage prediction, Seismic capacity evaluation, Repair cost

000010824 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010824 720__ $$aMaeda, Masaki
000010824 8560_ $$ffischerc@itam.cas.cz
000010824 8564_ $$s617245$$uhttps://invenio.itam.cas.cz/record/10824/files/05-03-0103.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-03-0103.
000010824 962__ $$r9324
000010824 980__ $$aPAPER