Ingbert Mangerig began studying civil engineering at the University of Applied Sciences in Trier in 1969. After studying in Trier, he worked for two years as a structural engineer. In 1974 he decided to return to the university and began studying civil engineering at the RWTH Aachen University with a major in structural engineering.
After successfully completing his studies in 1979, he first worked in an engineering office in Düsseldorf in the field of industrial and plant engineering, before returning to university in 1981 to change his career path from practice to higher education.

As a research assistant to Professor Dr. -Ing. Dr. -Ing. E. h. Karlheinz Roik at the Chair of Steel and Composite Construction at the Ruhr-University in Bochum, he dedicated himself to the challenging tasks of steel and composite construction. In Bochum, he carried out fundamental research work on the influence of creep and shrinkage in composite columns as well as on the load-bearing behaviour of composite materials. However, his scientific focus was on fundamental work on the influence of climatic temperature effects on the behaviour of bridge structures, which are still the basis for the regulations on climatic temperature effects contained in current national and European regulations.
His dissertation "Climatic Temperature Stresses of Steel and Steel Composite Bridges", published in 1986, initiated many further research projects in this field. During his time as an assistant professor, Prof. Mangerig also discovered his special ability to teach students and engineers working in practice difficult and complex subjects in lectures, seminars and exercises in a clear and understandable way.
As early as 1989 he was appointed professor of steel and composite construction at the Saarland University of Applied Sciences and Economics and in 1996 he was appointed professor of steel construction at the Institute for Structural Engineering at the Bundeswehr University of Applied Sciences in Munich.

The years in Munich have been marked by outstanding research work and a broad spectrum of topics. In addition to basic work on the load-bearing behaviour of concrete anchors and special questions concerning climatic temperature effects on bridge structures, e. g. In recent years, he has dealt with the storage problems of canal bridges, in particular with questions of the structural dynamics of pedestrian bridges and noise protection walls on high-speed lines of the Deutsche Bahn, with material fatigue in steel, glass and plastic constructions, with the development of bearings for earthquake-prone constructions and with the experimental and numerical simulation of fire scenarios.

His scientific activities are documented by more than 100 publications in recognized national and international journals and conference proceedings of renowned congresses. Particularly noteworthy is his commitment to the Japanese-German Bridge Building Colloquium, which takes place every two years in Germany and Japan alternately and provides bridge engineers with a particularly good overview of current developments and research efforts in both countries.

As Dean of the Faculty of Civil Engineering, as a member of the Senate of the University of Applied Sciences and as a member of the examination board for the recognition of test engineers in Bavaria, his many years of experience as a university lecturer and engineer was always in demand. Ingbert Mangerig has been an excellent emeritus professor at the University of the German Armed Forces in Munich since 2016.