John Ermopoulos Author

Ioannis Vayas is professor and director of the Institute of Steel Structures at the National Technical University of Athens, Greece. He has been involved in research, national and European codification, and consultancy on steel structures for over 40 years.

John Ermopoulos is professor emeritus and former director of the Institute of Steel Structures at the National Technical University of Athens, Greece. He is author of numerous publications in international journals and conferences. He has been involved in European research projects and in Technical Committees regarding steel. For many years he was consultant in various public and private technical projects.

George J. Ioannidis is professor emeritus of the National Technical University of Athens, Greece, where he was teaching the courses of steel structures for many years. He is the structural designer of numerous buildings and other civil engineering structures made from steel or reinforced concrete.