Additive Manufacturing in Construction
AMC TRR 277

TRR277 Person: Lázaro, Carlos Prof. Dr.

Prof. Dr. Carlos Lázaros AMC-MERCATOR-FELLOW

AMC-Mercator-Fellow Prof. Dr.-Ing. Carlos Lázaro is the academic director of the master's degree in civil engineering at the Universitat Politècnica de València (UPV, Spain). He has worked as a structural engineer in Barcelona (1991–1992), Berlin (1992–1994) and Valencia (1994–2000), and was a founding partner of CMD Ingenieros (2006-2014), an engineering firm specialising in structural design. He has been the president of the International Association for Shell and Spatial Structures (IASS) since 2021, a leading scientific and technical association in the field of lightweight structures, founded by Eduardo Torroja in 1959. He received the Pioneers' Award from the Spatial Structures Research Centre at the University of Surrey in 2021 for his contributions and career in the field of structures. Carlos Lázaro's research builds upon his professional experience and explores the design, realisation and performance of structural systems. It comprises • the design of structures with non-conventional materials (Félix Candela's last shell structure in 2000, pioneering the application of fibre-reinforced concrete in architectural shells, and the Turia Bridge in Manises in 2009, first application of structural recycled aggregate concrete in a cable-stayed bridge); • Innovative lightweight structural systems (experimental bending-active footbridges made of GFRP tubes and of HPFRC prestressed slabs, and a patented 2-axes solar tracking system for energy generation using PV panels); • Conceptual design of non-conventional bridge structures (viaducts for the Hyperloop transportation system). His current research lines focus on structural resiliency, including the mitigation of wind-induced vibrations in long-span bridges (in collaboration with the Chair of Structural Analysis at the TU Munich) and the prevention of collapse in ageing steel bridges (one article published in the leading scientific journal Nature). Carlos Lázaro collaborates in project C02 of area C' Design and Construction'. The focus is on researching innovative structural systems suitable for production using additive manufacturing, including adapting the '3D structural puzzle' to various structural systems, integrating components made of different materials, and addressing key questions in design and optimisation for manufacturability. Carlos Lázaro's experience in designing structural systems that incorporate innovative technologies provides an enriching, holistic perspective for the research efforts of the TRR 277 AMC. His collaboration also contributes to identifying points of contact between projects in Area C – and, to some extent, also in Area B. Furthermore, Carlos Lázaro's leadership role in the International Association for Shell and Spatial Structures (IASS) provides opportunities to expand the network and promote exchange with other international experts worldwide.

Dr. Ryan J. Sherman AMC-MERCATOR-FELLOW

Dr. Ryan J. Sherman, P.E., is an Associate Professor in the Georgia Institute of Technology (Georgia Tech) School of Civil and Environmental Engineering. His expertise encompasses the material behavior and structural performance of metallic wire-arc additive manufacturing (WAAM), as well as large scale structural testing, fielding monitoring of in-service structures, and steel bridge design and evaluation. His current research focuses on the use of WAAM to advance the design of steel structures and on integrating advanced testing and monitoring to validate performance. Professor Sherman currently serves as the Chair of the American Institute of Steel Construction (AISC) Additive Manufacturing Exploratory Task Force and leads the AISC AM Demonstration Bridge Project. He will be commencing a collaboration with AMC project A07 (Hensel/Kloft/Unglaub). The collaboration between Professor Sherman and AMC aims to develop, manufacture, and test a large-scale demonstrator to advance high-level research on AM of steel structures. The demonstrator will combine Professor Sherman‘s expertise in WAAM, material and structural testing, and bridge engineering with AMC’s strengths in advanced manufacturing, design optimization, and physical and virtual component testing. The research will encompass a range of topics, including the combination of semi-finished parts and WAAM nodal connectors manufactured with as-built surfaces. These innovations have the potential to transform the approach in modern structural engineering, enhancing strength, durability, and design flexibility. The Mercator Fellowship will concentrate on fatigue performance, buckling behavior, and large-scale component performance of metallic WAAM structures.
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