A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The Spitak, Armenia earthquake of 7 December 1988 — why so much destruction
AbstractFor a moderate earthquake (Ms = 6·8), the Spitak, Armenia earthquake of 7 December 1988 caused unprecedented destruction and fatalities. Unlike other destructive earthquakes, a coordinated research to understand the circumstances and conditions that led to the extensive damage from this earthquake has not yet been adequately carried out. This paper pieces together the little and uncoordinated research that has been accomplished to-date to form a comprehensive view of why so much destruction occurred. The main factors appear to be the unusual ground motion where, within a span of 40s, two significant events followed each other; the lack of adequate seismic design considerations such as ductulity in precast joints and vertical accelerations in the absence of adequate factors of safety for dead and live load design; unique microzonation practices that could change the design basis by a factor of four within a distance of only 1–2 km; and a host of other issues in structural analysis, concrete technology and city planning.
The Spitak, Armenia earthquake of 7 December 1988 — why so much destruction
AbstractFor a moderate earthquake (Ms = 6·8), the Spitak, Armenia earthquake of 7 December 1988 caused unprecedented destruction and fatalities. Unlike other destructive earthquakes, a coordinated research to understand the circumstances and conditions that led to the extensive damage from this earthquake has not yet been adequately carried out. This paper pieces together the little and uncoordinated research that has been accomplished to-date to form a comprehensive view of why so much destruction occurred. The main factors appear to be the unusual ground motion where, within a span of 40s, two significant events followed each other; the lack of adequate seismic design considerations such as ductulity in precast joints and vertical accelerations in the absence of adequate factors of safety for dead and live load design; unique microzonation practices that could change the design basis by a factor of four within a distance of only 1–2 km; and a host of other issues in structural analysis, concrete technology and city planning.
The Spitak, Armenia earthquake of 7 December 1988 — why so much destruction
Hadjian, A.H. (author)
Soil Dynamics and Earthquake Engineering ; 12 ; 1-24
1993-02-10
24 pages
Article (Journal)
Electronic Resource
English
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