This manuscript was prepared after the systematic engagement of the author - professor, Alexandros-Dimitris Tsonou, both with practice and with the execution of numerous experiments, aiming to convey to the reader not only the theoretical topics addressed by the material but also valuable experience.

The content of the book is fully harmonized with the new design concepts and mainly with Eurocode 2. Suitable for students of Polytechnic Schools of Higher Education and Technological Educational Institutions, as well as for professional engineers.