Giorgio Diana – författare

This book describes the enormous depth of work carried out since the early 1970s on the Messina Strait Bridge, up to the recent award of the detailed design and construction contract. This important work has included extensive studies, concepts and design developments, with far reaching applications, which have all confirmed the feasibility of this huge endeavour and have led to the optimisation of costs and expected performance levels. Attention is focused not only on the design itself, but also on the context for the project (e.g. historical, geological, seismo-tectonic and wind conditions; structural and mechanical properties; project management and financial aspects; and environmental considerations), and on the great challenges involved. Thus, considering the innovations and specific solutions adopted in overcoming the challenges presented by constructing a world record span of 3,300 metres at this site, it becomes clear how the Messina Strait Crossing will take its place as a masterpiece in bridge engineering history.This book will be of interest to bridge and structural engineers, geotechnical and wind engineers, mechanical and earthquake engineers, graduate students in all these areas and all others with a broad interest in bridge design and engineering.

This book describes the enormous depth of work carried out since the early 1970s on the Messina Strait Bridge, up to the recent award of the detailed design and construction contract. This important work has included extensive studies, concepts and design developments, with far reaching applications, which have all confirmed the feasibility of this huge endeavour and have led to the optimisation of costs and expected performance levels. Attention is focused not only on the design itself, but also on the context for the project (e.g. historical, geological, seismo-tectonic and wind conditions; structural and mechanical properties; project management and financial aspects; and environmental considerations), and on the great challenges involved. Thus, considering the innovations and specific solutions adopted in overcoming the challenges presented by constructing a world record span of 3,300 metres at this site, it becomes clear how the Messina Strait Crossing will take its place as a masterpiece in bridge engineering history.This book will be of interest to bridge and structural engineers, geotechnical and wind engineers, mechanical and earthquake engineers, graduate students in all these areas and all others with a broad interest in bridge design and engineering.

This brochure offers numerical models of wind-induced aeolian vibrations and sub-span oscillations of the conductors. It highlights what can be expected from numerical models regarding conductor vibrations.Assessment of the aeolian vibration condition of particular lines, with conductors whose mechanical properties are poorly defined, or with special terrain conditions, may require field measurements;Analytical methods based on the EBP and shaker-based technology can provide a useful tool to design damping systems for the protection of single conductors against aeolian vibrationsThis work reports the state of the art for professionals regarding aeolian vibrations and subspan oscillations modelling.

This textbook provides a thorough exploration of wind effects on the built environment, serving as a valuable reference for students, researchers, and practicing engineers. Wind has always influenced the design and performance of structures, from early construction methods to today’s most advanced engineering achievements. In modern practice, the demand for taller buildings, longer-span bridges, and more resilient infrastructure has heightened the need for a deep understanding of wind–structure interaction.The book begins by introducing the fundamental principles that govern wind characteristics and wind-induced loads. It then progresses to specialized topics such as wind climate analysis, aerodynamics, and wind tunnel testing. Special attention is given to how structures—including bridges, towers, and vehicles—respond to wind, emphasizing the impact on their safety, serviceability, and overall performance. A distinctive feature of this textbook is its integration of theoretical foundations with real-world applications. Drawing on current research and case studies, it provides readers with the tools to approach practical design problems while maintaining a solid grasp of fundamental concepts. The work also presents recent advances in wind tunnel methodologies and numerical modelling of fluid–structure interaction, providing insights into ongoing developments in the field. Ultimately, this book empowers readers with both knowledge and a critical perspective, fostering a deeper understanding of wind engineering and its essential role in the sustainable and resilient development of the built environment.

This book introduces a general approach for schematization of mechanical systems with rigid and deformable bodies. It proposes a systems approach to reproduce the interaction of the mechanical system with different force fields such as those due to the action of fluids or contact forces between bodies, i.e., with forces dependent on the system states, introducing the concepts of the stability of motion. In the first part of the text mechanical systems with one or more degrees of freedom with large motion and subsequently perturbed in the neighborhood of the steady state position are analyzed. Both discrete and continuous systems (modal approach, finite elements) are analyzed. The second part is devoted to the study of mechanical systems subject to force fields, the rotor dynamics, techniques of experimental identification of the parameters and random excitations. The book will be especially valuable for students of engineering courses in Mechanical Systems, Aerospace, Automation and Energy but will also be useful for professionals. The book is made accessible to the widest possible audience by numerous, solved examples and diagrams that apply the principles to real engineering applications.

It proposes a systems approach to reproduce the interaction of the mechanical system with different force fields such as those due to the action of fluids or contact forces between bodies, i.e., with forces dependent on the system states, introducing the concepts of the stability of motion.