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Structural Engineering and Mechanics   Volume 69, Number 3, February10 2019, pages 269-281
Numerical simulation of the constructive steps of a cable-stayed bridge using ANSYS
Paula M. Lazzari, Americo Campos Filho, Bruna M. Lazzari, Alexandre R. Pacheco and Renan R. S. Gomes

Abstract     [Buy Article]
    This work addresses a three-dimensional nonlinear structural analysis of the constructive phases of a cable-stayed segmental concrete bridge using The Finite Element Method through ANSYS, version 14.5. New subroutines have been added to ANSYS via its UPF customization tool to implement viscoelastoplastic constitutive equations with cracking capability to model concrete\'s structural behavior. This numerical implementation allowed the use of three-dimensional twenty-node quadratic elements (SOLID186) with the Element-Embedded Rebar model option (REINF264), conducting to a fast and efficient solution. These advantages are of fundamental importance when large structures, such as bridges, are modeled, since an increasing number of finite elements is demanded. After validating the subroutines, the bridge located in Rio de Janeiro, Brazil, and known as \"Ponte do Saber\" (Bridge of Knowledge, in Portuguese), has been numerically modeled, simulating each of the constructive phases of the bridge. Additionally, the data obtained numerically is compared with the field data collected from monitoring conducted during the construction of the bridge, showing good agreement.
Key Words
    cable-stayed bridges; bridge modeling; numerical analysis; the Finite Element Method; ANSYS; the UPF customization tool
Paula M. Lazzari, Americo Campos Filho, Bruna M. Lazzari and Alexandre R. Pacheco: Civil Engineering Graduate Program, Federal University of Rio Grande do Sul, 99 Oswaldo Aranha Ave, 90035-190, Porto Alegre, RS, Brazil
Renan R. S. Gomes: Civil Engineering Graduate Program, Federal University of Rio de Janeiro, 550 Pedro Calmon Ave, 21941-901, Rio de Janeiro, RJ, Brazil

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