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Topology Optimisation is a broad concept deemed to encapsulate different processes for computationally determining structural materials optimal layouts. Among such techniques, Discrete Optimisation has a consistent record in Civil and Structural Engineering. In contrast, the Optimisation of Continua recently emerged as a critical asset for fostering the employment of Additive Manufacturing, as one can observe in several other industrial fields. With the purpose of filling the need for a systematic review both on the Topology Optimisation recent applications in structural steel design and on its emerging advances that can be brought from other industrial fields, this article critically analyses scientific publications from the year 2015 to 2020. Over six hundred documents, including Research, Review and Conference articles, added to Research Projects and Patents, attained from different sources were found significant after eligibility verifications and therefore, herein depicted. The discussion focused on Topology Optimisation recent approaches, methods, and fields of application and deepened the analysis of structural steel design and design for Additive Manufacturing. Significant findings can be found in summarising the state-of-the-art in profuse tables, identifying the recent developments and research trends, as well as discussing the path for disseminating Topology Optimisation in steel construction.
Tiago Ribeiro; Luís Bernardo; Jorge Andrade. Topology Optimisation in Structural Steel Design for Additive Manufacturing. Applied Sciences 2021, 11, 2112 .
AMA StyleTiago Ribeiro, Luís Bernardo, Jorge Andrade. Topology Optimisation in Structural Steel Design for Additive Manufacturing. Applied Sciences. 2021; 11 (5):2112.
Chicago/Turabian StyleTiago Ribeiro; Luís Bernardo; Jorge Andrade. 2021. "Topology Optimisation in Structural Steel Design for Additive Manufacturing." Applied Sciences 11, no. 5: 2112.
Among several analytical models to describe the behavior of reinforced concrete (RC) and longitudinally prestressed concrete (LPC) beams under torsion, the Modified Variable Angle Truss Model (MVATM) is particularly efficient to capture the behavioral states of the member until failure and agree well with experimental results. This article aims to extend the MVATM to cover transversally prestressed concrete (TPC) beams under torsion. The changes in the formulation and calculation procedure of the original VATM, in order to include the influence of transversal prestress, are presented. The extended MAVTM is then used to compute the global response of LPC and TPC beams under torsion with similar total prestress reinforcement ratios, namely the torque–twist curves. The obtained predictions are then compared and discussed. It is shown that for the ultimate loading, transversal prestress constitutes also an effective solution to improve the behavior of the beams under torsion. However, transversal prestress is less effective to delay the cracked state. Finally, it is also shown that when prestress is distributed in both longitudinal and transversal direction, the global response of the beams under torsion is further improved, namely the resistance torque and the torsional stiffness in the cracked state.
Luís Bernardo; Jorge Andrade; Mafalda Teixeira. Parametric Study of the Behavior of Longitudinally and Transversally Prestressed Concrete under Pure Torsion. Designs 2018, 2, 12 .
AMA StyleLuís Bernardo, Jorge Andrade, Mafalda Teixeira. Parametric Study of the Behavior of Longitudinally and Transversally Prestressed Concrete under Pure Torsion. Designs. 2018; 2 (2):12.
Chicago/Turabian StyleLuís Bernardo; Jorge Andrade; Mafalda Teixeira. 2018. "Parametric Study of the Behavior of Longitudinally and Transversally Prestressed Concrete under Pure Torsion." Designs 2, no. 2: 12.
L. F. A. Bernardo; J. M. A. Andrade; N. C. G. Nunes. Generalized softened variable angle truss-model for reinforced concrete beams under torsion. Materials and Structures 2014, 48, 2169 -2193.
AMA StyleL. F. A. Bernardo, J. M. A. Andrade, N. C. G. Nunes. Generalized softened variable angle truss-model for reinforced concrete beams under torsion. Materials and Structures. 2014; 48 (7):2169-2193.
Chicago/Turabian StyleL. F. A. Bernardo; J. M. A. Andrade; N. C. G. Nunes. 2014. "Generalized softened variable angle truss-model for reinforced concrete beams under torsion." Materials and Structures 48, no. 7: 2169-2193.
Construction using refurbished shipping containers is a recent building system, with already many successful examples around the world. This system presents a huge potential in the field of sustainable construction provided by the recycling of used containers. This paper aims to contribute to a better knowledge of this construction system in what concerns to the structural project. The general constitution of two maritime shipping containers is presented as well as some aspects of their structural behavior. For this purpose, numerical analyses were performed using a finite elements analysis program. Normative aspects for the structural project are also presented. This paper also presents the analysis of a case study with the use of refurbished shipping containers to build a single-family house. The evaluation of the strength of the refurbished shipping containers to building actions is carried out. It is shown that such evaluation is not easy because some mechanical parameters of noncommercial steel section of the elements that compose the shipping containers are unknown. Nevertheless, this study shows the feasibility of this building system.
Luís F. A. Bernardo; Luiz A. P. Oliveira; Miguel Nepomuceno; Jorge Andrade. USE OF REFURBISHED SHIPPING CONTAINERS FOR THE CONSTRUCTION OF HOUSING BUILDINGS: DETAILS FOR THE STRUCTURAL PROJECT. JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 2013, 19, 628 -646.
AMA StyleLuís F. A. Bernardo, Luiz A. P. Oliveira, Miguel Nepomuceno, Jorge Andrade. USE OF REFURBISHED SHIPPING CONTAINERS FOR THE CONSTRUCTION OF HOUSING BUILDINGS: DETAILS FOR THE STRUCTURAL PROJECT. JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT. 2013; 19 (5):628-646.
Chicago/Turabian StyleLuís F. A. Bernardo; Luiz A. P. Oliveira; Miguel Nepomuceno; Jorge Andrade. 2013. "USE OF REFURBISHED SHIPPING CONTAINERS FOR THE CONSTRUCTION OF HOUSING BUILDINGS: DETAILS FOR THE STRUCTURAL PROJECT." JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 19, no. 5: 628-646.
Luís Bernardo; Jorge Andrade; Sergio Lopes. Softened truss model for reinforced NSC and HSC beams under torsion: A comparative study. Engineering Structures 2012, 42, 278 -296.
AMA StyleLuís Bernardo, Jorge Andrade, Sergio Lopes. Softened truss model for reinforced NSC and HSC beams under torsion: A comparative study. Engineering Structures. 2012; 42 ():278-296.
Chicago/Turabian StyleLuís Bernardo; Jorge Andrade; Sergio Lopes. 2012. "Softened truss model for reinforced NSC and HSC beams under torsion: A comparative study." Engineering Structures 42, no. : 278-296.
A new computation procedure is developed to predict the overall behaviour of reinforced concrete beams under torsion. This procedure is based on a modification of the classic Variable Angle Truss-Model in order to make it capable of predicting the behaviour of the beams under torsion for all loading states. The theoretical predictions are compared with the results from reported tests. Conclusions are presented. The main conclusion is that the new procedure described in this paper gives very good predictions when compared with the actual overall behaviour of the beams.
L. F. A. Bernardo; Jorge Andrade; Sergio Lopes. Modified Variable Angle Truss-Model for torsion in reinforced concrete beams. Materials and Structures 2012, 45, 1877 -1902.
AMA StyleL. F. A. Bernardo, Jorge Andrade, Sergio Lopes. Modified Variable Angle Truss-Model for torsion in reinforced concrete beams. Materials and Structures. 2012; 45 (12):1877-1902.
Chicago/Turabian StyleL. F. A. Bernardo; Jorge Andrade; Sergio Lopes. 2012. "Modified Variable Angle Truss-Model for torsion in reinforced concrete beams." Materials and Structures 45, no. 12: 1877-1902.