NEHRP Clearinghouse

Title
Seismic Design Decision Analysis. 1972 Managua Earthquake Damage to Tall Buildings.
File
PB80104763.pdf
Author(s)
McMahon, P.
Source
National Science Foundation, Washington, DC. Engineering and Applied Science., November 1974, 13 p.
Identifying Number(s)
INTERNAL STUDY-49
Abstract
Damage to buildings of five or more stories during the 1972 Managua earthquake is evaluated. Information on building performance is organized and presented by means of the damage probability matrix. The damage states are described. The probabilities reflect the relationship between ground shaking intensity and the amount of building damage. All buildings over five stories high suffered some damage, ranging from light nonstructural damage and concrete cracking to total collapse. Most of these buildings had reinforced concrete frames as lateral force resisting systems. These did not seem to perform as well as the reinforced concrete shear wall buildings. In general, an average value of damage state six seems appropriate to these buildings. This data, however, seems contrary to the belief that these buildings were of significant seismic design.
Keywords
Seismic design; Damage assessment; Tall buildings; Steel construction; Framed structures; Managua (Nicaragua); Earthquake resistant structures; Nicaragua; Seismic risk; Structural design; Buildings; Earthquake engineering; Building codes; Concrete construction; Earthquakes