Reliability-Based Design Requirements for Foundations of Buildings Subjected to Earthquake

by Luis Esteva, Natl Univ of Mexico, Mexico,
Orlando D?z, Natl Univ of Mexico, Mexico,
Enrique Mendoza, Natl Univ of Mexico, Mexico,
Norberto Quiroz, Natl Univ of Mexico, Mexico,



Document Type: Proceeding Paper

Part of: Structural Safety and Reliability

Abstract:

Optimum seismic design coefficients and safety factors with respect to shear and overturning failure modes are obtained for a set of multi-story frame buildings idealized as single-mass systems with three failure modes, including excessive foundation rocking. The algorithm adopted can be applied to more general conditions and covers both the case when the expected consequences of failure include only the contributions of collapse modes and the case when other damage modes are considered. The probability distributions of the properties of the simplified systems are intended to approximate those of the global properties of the corresponding full systems. The distribution of response and damage for an earthquake of a given intensity is obtained by Monte Carlo simulation, and the expected present value of losses is obtained by numerical integration with respect to the rate of exceedance of each intensity at a given site.

Subject Headings: Foundation design | Building design | Seismic design | Failure analysis | Structural reliability | Pile foundations | Structural failures

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