Seismic Analysis and Design of Geotechnical Structures

Abstract

The paper discusses the emerging trends in seismic analysis and design of geotechnical structures. Soil consists of soil particles. The fundamental study on this aspect of soil has come to the stage where the results of the study can be readily incorporated as an essential part of seismic analysis of soil–structure systems. Geotechnical earthquake engineers and researchers are encouraged to look into this fundamental study. By expanding the concept of performance-based design, a paradigm shift can be achieved from construction-oriented to service-oriented approach. The service-oriented approach will open a new horizon for design and promote the holistic approach for providing better designed built-environment. Designing a large urban area against combined hazards, such as those caused by the Sumatra earthquake of 2004, poses a new challenge in seismic design. The approach that is most appropriate for a large urban area may be different from those used for the current practice design used for individual structure and should be newly developed. These emerging trends in seismic design have to be extensively studied and carefully applied in practice, especially for designing new and large geotechnical structures that have to meet the rapidly growing social and economic demands in Asia and those for redevelopment of urban areas around the world.