NEHRP Clearinghouse

Incident Losses: Identification and Evaluation Methods to be Employed. Optimum Seismic Protection for New Building Construction in Eastern Metropolitan Areas.
Ackroyd, M. H.; Hong, S. T.
National Science Foundation, Washington, DC. Applied Science and Research Applications., November 1972, 23 p.
Identifying Number(s)
Descriptions of the possible consequences of earthquake action on a building subject to some design decision are provided. These descriptions are structured so as to help in the selection of optimum seismic design criteria. The magnitude of each incident loss may or may not be closely correlated to the state of the damaged building. Some losses may be related to or even dependent upon the physical damage state, others may be more closely related to the maximum acceleration experienced, while others may be related to the interstory drift. Since these three characteristics can be affected by changing the design strategy, it is desirable to study the possibility of eliminating or minimizing the incident losses by changing the design strategy. The incident losses are perceived to be: repair estimate and supervision; property devaluation after repairs; loss of tenants; loss of business; loss of man-hours in restoring the order; loss of man-hours due to repairing operations; discomfort caused by building motion and noise caused by quake; life toll and injury; physical damage to buildings contents; rescue operations; traffic congestion; and impact on local economy. They are categorized according to who feels the impact of the loss, the owner, the occupant, or the public.
Seismic design; Damage assessment; Earthquake resistant structures; Economic factors; Buildings; Earthquake engineering; Eastern Region (United States); Losses; Design criteria; Earthquakes; Dynamic structural analysis