A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Enhanced Building-Specific Seismic Performance Assessment
An improved performance assessment methodology aimed at estimating economic losses produced by earthquake ground motions in individual buildings is presented. The enhanced methodology permits the estimation of expected losses in the building at specific level of ground motion intensity, expected annual losses as well as estimating the mean annual frequency of occurrence of specific levels of economic losses. Unlike previous work, the proposed methodology explicitly accounts for economic losses resulting from the possibility of having to demolish the building after a seismic event. The probability of demolition is computed as a function of peak residual lateral deformations experienced in the building. The proposed approach is illustrated by estimating economic losses in two reinforced concrete moment resisting frame buildings design according to current seismic provisions and assumed to be located in Los Angeles, California. Results from this study indicate that, over a wide range of ground motion intensities, ductile buildings are more likely to experience large residual deformations leading to demolition than experiencing a collapse. Thus, neglecting the possible demolition leads to significant underestimation of economic losses.
Enhanced Building-Specific Seismic Performance Assessment
An improved performance assessment methodology aimed at estimating economic losses produced by earthquake ground motions in individual buildings is presented. The enhanced methodology permits the estimation of expected losses in the building at specific level of ground motion intensity, expected annual losses as well as estimating the mean annual frequency of occurrence of specific levels of economic losses. Unlike previous work, the proposed methodology explicitly accounts for economic losses resulting from the possibility of having to demolish the building after a seismic event. The probability of demolition is computed as a function of peak residual lateral deformations experienced in the building. The proposed approach is illustrated by estimating economic losses in two reinforced concrete moment resisting frame buildings design according to current seismic provisions and assumed to be located in Los Angeles, California. Results from this study indicate that, over a wide range of ground motion intensities, ductile buildings are more likely to experience large residual deformations leading to demolition than experiencing a collapse. Thus, neglecting the possible demolition leads to significant underestimation of economic losses.
Enhanced Building-Specific Seismic Performance Assessment
Geotechnical,Geological
Fardis, Michael N. (editor) / Miranda, Eduardo (author)
2010-06-12
9 pages
Article/Chapter (Book)
Electronic Resource
English
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