On the relationship between reliability indices for ultimate and serviceability limit states of building foundations

Abstract

This paper presents a simplified relationship between the reliability indices (βsls and βuls) for the serviceability limit state (SLS) and ultimate limit state (ULS) of building foundations. Under certain conditions, βsls is a linear function of the βsls that is specified already in reliability-based design (RBD) codes. For illustration, the relationship is used to estimate βsls for augered cast-in-place (ACIP) piles designed in accordance with the RBD methodologies in the National Building Code of Canada. © 2008 Science Press Beijing and Springer-Verlag GmbH Berlin Heidelberg Geotechnical Engineering for Disaster Mitigation and Rehabilitation.