Performance-Based Optimization of Structures: Theory and Applications

Performance-Based Optimization of Structures: Theory and Applications

Performance-Based Optimization of Structures: Theory and Applications

Performance-Based Optimization of Structures: Theory and Applications

Synopsis

The Performance-Based Optimization method combines modern structural optimisation theory with performance based design concepts to produce a powerful techniques for use in structural design.

Excerpt

Modern structural optimization techniques combine the finite element analysis with mathematical programming or optimality criteria methods into a single scheme to achieve optimal designs of structures. Topology optimization methods for continuum structures have achieved significant progress in the last two decades. These techniques have increasingly been used in aeronautical, mechanical and automotive industries in which the weight reduction of structures is very important. However, the potential of structural optimization techniques has not been realized by civil engineering industry. the main reason for this is that structural optimization is traditionally used as a tool for reducing the weight of engineering structures.

The purpose of this book is to introduce the theory and applications of a performance-based optimization (PBO) method for topology, shape and sizing design of structures. the pbo technique can be used not only for maximizing the performance of structures but also for automating the engineering design process. the pbo method combines modern structural optimization theory with performance-based design concepts. Performance indices and performance-based optimality criteria are incorporated into the pbo algorithms to identify the global optimum. the emphasis of the book is on the practical applications of the pbo technique to the automatic generation of optimal strut-and-tie models for the design and detailing of reinforced and prestressed concrete structures and lateral load resisting systems for multistory steel and steel-concrete composite frames. the main attractive features of the pbo method are its clarity in concepts, simplicity in mathematical formulation, ability to generate the global optimum and easy to understand.

This book is written for practicing civil and structural engineers and researchers who are interested in achieving optimal designs, particularly for concrete designers who want to apply the automated pbo technique to the generation of optimal strut-and-tie models in structural concrete. It is a comprehensive reference for undergraduate and postgraduate students in civil engineering. the materials presented in the book will also be of interests to

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