CIVIL ENGINEERING 365 ALL ABOUT CIVIL ENGINEERING



The ASCE Forensic Engineering Division (FED) traditionally selects a paper published in this journal during the previous calendar year for our Outstanding Paper Award. For 2020, the journal’s Editorial Board selected the paper “Analysis of a Collapsed Long-Span Reinforced Concrete Roof in South Italy: Design Mistakes and Material Degradation” by Giuseppe Campione and Giuseppe Giambanco, https://doi.org/10.1061/(ASCE)CF.1943-5509.0001409. The paper was published online January 3, 2020, and in print in the April 2020 issue.The paper describes investigations into the partial collapse of a 70-year-old reinforced concrete building in Palermo, Italy, in 2004. The building failed under its own weight. Material testing showed extensive corrosion of reinforcement, as well as two different types of concrete used. One set of concrete specimens showed only about a third of the required strength. There were significant errors of reinforcement detailing.Among other findings, the paper concluded the following: The mechanism that generated the collapse was instantaneous and did not involve the poor ductility properties of compressed concrete and steel bars. Therefore, the brittle mechanism identified is on the steel side due to the loss of mechanical collaboration between concrete and steel (bond failure in the overlap zone). From the analyses carried out, it can be said that the mechanism that triggered the collapse occurred due to the loss of collaboration between the concrete and the steel in intermediate Beams 2 and/or 3 in the sections between one-third and one-quarter of the span. Loss of collaboration has two causes. The first is related to a poor or often nonexistent steel-concrete bond between steel and concrete; the second is due to an excess of reinforcement, which in the casting phase limited the coating and corrosion of the bars.Giuseppe Campione, Ph.D.Dr. Giuseppe Campione (Fig. 1) is currently a full professor of design of structures in the Department of Engineering at the University of Palermo, Italy. He received his master’s degree in civil engineering in 1988 from the University of Palermo and his Ph.D. in structural engineering in 1997 from the University of Palermo. He is married to Rossella, and they have two sons, Bernardo and Bianca.Dr. Campione’s main areas of expertise are the use of innovative materials for civil construction and infrastructure. Among the new materials are fiber-reinforced concrete (FRC), fiber-reinforced plastic (FRP), and structural glass. From the experimental point of view, he has examined the behavior in compression and the bending of slender and deep beams, corbels, and columns, including RC, steel-concrete composite structures, and structural laminated glass. From the theoretical point of view, in addition to the development of strut-tie models for the study of diffusive regions, he has made several contributions to models of confinement of structures in reinforced concrete and reinforced masonry with external steel cages (angles and stiffening battens) or even with steel wires and networks for brickwork pressed. He has published more than 105 indexed international journal papers and 250 conference papers, and he participated in the publication of chapters of several books. Currently, he is a reviewer of several prestigious international journals. He is a principal investigator in national and European projects and initiated collaborative activities with some professors of foreign universities (University of Michigan in the United States, University of British Columbia in Canada). In addition, he was also a designer and consultant for more than 200 projects of buildings and bridges at the national level.Giuseppe Giambanco, Ph.D.Dr. Giuseppe Giambanco (Fig. 2) earned his M.Sc. in civil engineering from the University of Palermo in 1988 and his Ph.D. in structural engineering in 1996 from the Italian Ministry of Research and Education. During his Ph.D. studies, he was a visiting scholar at the Institute of Fundamental and Technological Research of the Polish Academy of Science. From 1998 to 2007, he worked at the University of Palermo as an assistant and associate professor. In 2005, he became a full professor at the University of Rome “La Sapienza” and since 2007 has been a full professor of solid mechanics at the University of Palermo. At the same university, he is the head of the Structural Modeling Lab, where he develops his principal research interests in modeling and numerical simulations of inelastic materials and structures. He is also a reviewer of more than 20 international journals and supervisor of six completed Ph.D. students. In addition, he is a member of the Italian Association of Theoretical and Applied Mechanics and of the Italian Group of Computational Mechanics.Dr. Giambanco is a licensed professional engineer in Palermo, and he gained relevant experience in the study of vulnerability, static and seismic, of civil structures. Several consultancies have been developed for different clients, public and private. In particular, some studies of masonry and concrete structure failures have been commissioned by the Italian Ministry of Justice and by the Sicilian Healthcare Department.Other nominees for the 2020 Outstanding Journal Paper Award receiving votes from the Editorial Board were:Sutley, E. J., K. Vazquez, J. H. Kim, T. Dao, B. Johnston, and J. Hunt. 2020. “Performance of manufactured housing during Hurricanes Irma and Michael.” J. Perform. Constr. Facil. 34 (4): 04020078. https://doi.org/10.1061/(ASCE)CF.1943-5509.0001486.Malomo, D., N. Scattarreggia, A. Orgnoni, R. Pinho, M. Moratti, and G. M. Calvi. 2020. “Numerical study on the collapse of the Morandi Bridge.” J. Perform. Constr. Facil. 34 (4): 04020044. https://doi.org/10.1061/(ASCE)CF.1943-5509.0001428.Sherman, R. J., M. H. Hebdon, and J. B. Lloyd. “Diagnostic load testing for improved accuracy of bridge load rating.” J. Perform. Constr. Facil. 34 (5): 04020082. https://doi.org/10.1061/(ASCE)CF.1943-5509.0001483.



Source link

Leave a Reply

Your email address will not be published.