Performance-based earthquake-resistant design of framed buildings using energy concepts.

摘要

In recent decades, our understanding of the response of structures subjected to earthquake ground motions (EQGMs) has increased considerably. In spite of our current limitations, the improvements brought by the flourishing of earthquake engineering allows us to design safer buildings than ever before. Nevertheless, it is interesting to note that although several parts of the overall earthquake-resistant design (EQ-RD) procedure for buildings have improved dramatically over the years, other parts have remained with little or no change in spite of the poor performance of buildings designed according to current design regulations during recent seismic events.; Chapter 1 of this dissertation, after a presentation of the shortcomings of current EQ-RD procedures and what is the performance that has been traditionally expected from EQ-resisting structures designed according to them and an introduction to performance-based engineering, introduces the main objectives and scope of this dissertation. The main objective of this dissertation is to propose a performance-based EQ-RD procedure using energy concepts.; Chapter 2 provides an in depth discussion of the main goals and methodology of current EQ-RD procedures, identifying their most important shortcomings and limitations. Chapter 2 discusses in a qualitative manner a performance-based EQ-RD procedure that is based on energy concepts and that explicitly considers the desired performance of the EQ-resisting structure as instrumental design information.; Chapter 3 discusses several issues that are instrumental in the implementation of the proposed performance-based EQ-RD procedure for the design of reinforced concrete (RC) buildings.; Chapter 4 uses the material introduced in Chapter 3 to propose a practical implementation of the performance-based EQ-RD procedure introduced in Chapter 2 for the design of RC special moment-resisting frames.; Finally, Chapter 5 attempts to summarize the most relevant information presented throughout this dissertation while offering conclusions and identifying research needs that may make possible the practical implementation of the proposed performance-based EQ-RD procedure. (Abstract shortened by UMI.)