A structure, as it relates to civil engineering, is a system of interconnected members used to support external loads. Structural analysis is the prediction of the response of a structure to any given external load. In the preliminary structural design phase, the potential external loads of the structure are estimated and the interconnected members of the structure are sized based on the estimated loads. Structural analysis establishes the relationship between the expected external loads on the structural members and the corresponding internal stresses and displacements of the structural members. This is necessary to ensure that the structural members meet the safety and serviceability requirements of the building codes and specifications for the region in which the structure is located.
About the Book
This book deals with the structural analysis of bracing systems for multi story building structures and is intended to provide a useful tool for both researchers and practicing structural engineers. To that end, the book is divided into two parts: Part I presents the theoretical background and Part II presents practical examples.
Until a few decades ago, the lack of computer power made it impossible or impractical to perform “rigorous” analysis of large, complex structures. Later, more powerful computers and more sophisticated programs became widely available to the structural engineering community.
Soon, debates began about “Do we need the old-fashioned approximate methods?”, “Should we rely on mindless number crunchers that can’t think?”, “If we enter all the data and press <Enter>, will the structural analysis be done tomorrow?”, “Computers in design offices: a boon or a bane?” (Smart, 1997). This debate will probably continue for a long time. But one thing is certain. Simple analytical methods and closed-form approximate solutions have played and will continue to play an important role in practical structural engineering and theoretical research (How son, 2006).
This is because, in addition to providing important independent checking possibilities to help avoid Computer Aided Disaster (CAD) (Brohn, 1996), the development and use of such methods is useful in understanding the complex behavior of large structures such as multi story buildings. It is also a useful tool in developing common sense in structural engineering and a sense of the behavior of structures.