The problem of load combination in earthquake resistance theory

Abstract

This scientific work addresses the problem of combining seismic loads with other types of actions within the framework of the general theory of earthquake-resistant design and modern methods for designing buildings and structures. Particular attention is paid to the transition toward multi-level performance-based design, which requires structural analyses for earthquakes of varying intensity and recurrence. A comparative analysis of load combination factors adopted in the regulatory documents of Russia, European countries, the United States, New Zealand, and Albania is performed. It is shown that the existing load combination factors are largely empirical, do not adequately account for the statistical characteristics of loads and the seismological features of the construction site, and are not mutually consistent.