6th International Congress on Mechanical Models in Structural Engineering (CMMoST 2021) Lorenzana Ibán, Antolín Gil Martín, Luisa María Hernández Montes, Enrique Cámara Pérez, Margarita Compán Cardiel, Víctor Sáez Pérez, Andrés Magdaleno González, Álvaro Models for structural analysis Models in structural Rehabilitation Damage evaluation Structural materials Structural models Innovation Higher Education Architectural and Engineering Structures CMMoST 2021 is the 6th edition of the Thematic Conference on Mechanical Models in Structural Engineering that is being held from 1 to 3 December in Valladolid (Spain). This series of conferences started in 2011 and progressed successfully over the decade. Previous editions were held in Granada (2011 and 2013), Sevilla (2015), Madrid (2017) and Alicante (2019). This series constitutes an excellent opportunity to present research projects and results and also share experiences in the field of mechanical modeling in structural engineering. CMMoST is aimed at both researchers and professionals dedicated to the development and application of mechanical models in structural engineering. In this edition, 54 contributions are programmed in 14 sessions, including 2 plenary lecture sessions and 12 oral sessions. The presentations come from 5 countries apart from Spain and 14 will be contributed by predoctoral researchers. Since its beginning, CMMoST has maintained its international scope, but also tries to encourage the young local researchers, making it easier for them to make their presentations in Spanish. Because of this, two official languages are permitted: English and Spanish. Supported by the participants and local sponsors, CMMoST 2021 proposes an attractive social program that includes a reception at the Escuela de Ingenierías Industriales (School of Industrial Engineering), a tour around the city center of Valladolid, a wine experience at the Wine Museum in the nearby village of Peñafiel and a gala dinner to taste dishes of the local, traditional cuisine. Finally, the Organization Committee of CMMoST 2021 is very thankful to the authors for their valuable contributions, to the chairmen for their help and the Conference Secretariat for their dedication to the tedious administrative tasks. To all of you, thank you very much. 2022-03-30T12:14:24Z 2022-03-30T12:14:24Z 2021 conference output Lorenzana Ibán, A.; et al. (eds.). 5rd International Congress on Mechanical Models in Structural Engineering. Valladolid: Escuela de Ingenierías Industriales Universidad de Valladolid 2021. [http://hdl.handle.net/10481/73976] http://hdl.handle.net/10481/73976 eng http://creativecommons.org/licenses/by-nc-nd/3.0/es/ open access Atribución-NoComercial-SinDerivadas 3.0 España Universidad de Valladolid