NEHRP Clearinghouse
- Title
- Cumulative Damage of Structures Subjected to Response Spectrum Consistent Random Processes.
- File
- PB86100807.pdf
- Author(s)
- Jeong, G. D.
- Source
- National Science Foundation, Washington, DC., January 1985, 121 p.
- Identifying Number(s)
- EERL-85-03
- Abstract
- 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.
- Keywords
- Random processes; Earthquake resistant structures; Reinforced concrete; Steel structures; Mathematical models; Earthquake damage; Dynamic response; Ground motion; Earthquake engineering; Concrete structures; Structural design; Theses; Cyclic loads; Durability; Dynamic structural analysis