Pedro Álvares Ribeiro do Carmo Pacheco  Pedro Álvares Ribeiro do Carmo Pacheco (born December 7, 1967), known as Pedro Pacheco, is a Portuguese civil engineer and professor of bridges at FEUP (Engineering Faculty of Porto University), who co-founded BERD, one of the most respectable bridge engineering companies. Pacheco is the mentor of the organic prestressing system concept (OPS concept), based on the human muscle, used in bridge engineering worldwide. He is responsible for the project of more than 500,000 m2 of bridge and building structures, project revision of several buildings of relevant importance. He was involved as Project Manager/Consultant or Project Reviewer in Major Projects as Braga Municipal Stadium, (Bridge with 280m span), and Casa da Música, before 2004. After 2004 involved in several Bridges Projects, Worwilde. Also, he is a member of GPBE (Portuguese Group of Structural Concrete), (Internacional Association for Shell and Spatial Structures) and IABSE (International Association of Bridges and Structural Engineering). Pacheco was born in Porto, a city known for its wine, its architecture and Eiffel Bridge, the last one inspired him to pursue his formation. He started his education in Garcia da Horta High School, and he later studied Civil Engineering at FEUP (Engineering Faculty of Porto University) where, after he graduated in 1991, he achieved the Msc Degree in 1994 and the PhD Degree in 1999, all of them with distinction. After his graduation, in 1991, he became a Partner of AFAssociados. In that project, Pacheco was involved in several structures projects, which included buildings, bridges and viaducts. He was the main responsible for more than 500.000 m2 of projects of different types. He was responsible for preliminary design study of Braga Municipal Stadium and was involved in the constructive methods studies of . He was a design checker of Porto's Casa da Música in Porto and project manager of several structures such as Vodafone Headquarters in Lisbon. In 2000, Pacheco was invited to be Professor of Bridges in FEUP (Engineering Faculty of Porto University) and after that, Member of the Construction Studies Center, in 2001. Finally, in 2003 (Portugal) he completed the concept that he had been developing in his research, the OPS Concept, and in 2004 (other 68 countries) he registered the latest discovery, now known as OPS (Organic Prestressing System).