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Cumulative Damage of Structures Subjected to Response Spectrum Consistent Random Processes.
Jeong, G. D.
National Science Foundation, Washington, DC., January 1985, 121 p.
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A theoretical analysis of the effect of duration on the damage of structures subjected to earthquakes is presented. Earthquake excitation is modeled as a nonstationary random process. Estimates of the first-passage probability of a simple oscillator are employed to choose modulated Gaussian random processes consistent with a prescribed response spectrum. Expressions for the mean damage of a structure are derived using an approach similar to the Miner-Palmgren rule for failure caused by cyclic loads. The expected damage expressions are then evaluated for a structure subjected to modulated Gaussian random processes of varying duration. Two types of structures are examined: a steel structure and a reinforced concrete structure.
Earthquake damage; Dynamic response; Ground motion; Durability; Steel structures; Earthquake engineering; Earthquake resistant structures; Theses; Structural design; Random processes; Reinforced concrete; Concrete structures; Mathematical models; Cyclic loads; Dynamic structural analysis