UCL Discovery
UCL home » Library Services » Electronic resources » UCL Discovery

Rocking damage-free steel column base with friction devices: development of advanced 3D finite element models in ABAQUS

Dimopoulos, C; Freddi, F; Karavasilis, TL; (2017) Rocking damage-free steel column base with friction devices: development of advanced 3D finite element models in ABAQUS. In: Proceedings of Eurosteel 2017. (pp. pp. 2916-2925). Ernst & Sohn: Berlin, Germany. Green open access

[img]
Preview
Text
Freddi_Dimopoulos et al. 2017_Eurosteel_Rocking damage-free steel CB with FDs - development of advanced 3D FEM in Abaqus - Submitted.pdf - Published version

Download (810kB) | Preview

Abstract

Column bases are critical components of a seismic-resistant steel building as they transfer gravity and lateral forces to the foundations. This paper focuses on the finite element (FE) modelling of a rocking damage-free steel column base, which uses post-tensioned high strength steel bars to achieve self-centering behavior and friction devices to provide energy dissipation capacity. Contrary to conventional steel column bases, the monotonic and cyclic moment-rotation behavior of the column base can be easily described using simple analytical equations. An advanced three-dimensional FE model for the column base is developed in ABAQUS. The techniques used to overcome convergence issues in numerical simulations as well as the constitutive laws for the nonlinear behavior of materials and friction interfaces are described in detail. The FE model provides results that are in very good agreement with the results from the analytical moment-rotation equations. The FE model results are also used to validate a simplified numerical model in OpenSees. Moreover, the FE model provides results that help to assess the level of stress concentration in critical areas of the column base and to evaluate a step-by-step design procedure that ensures damage-free behavior, self-centering capability, and adequate energy dissipation capacity.

Type: Proceedings paper
Title: Rocking damage-free steel column base with friction devices: development of advanced 3D finite element models in ABAQUS
Event: Eurosteel 2017, 8th European Conference on Steel and Composite Structures
Location: Copenhagen, Denmark
Dates: 13 September 2017 - 15 September 2017
Open access status: An open access version is available from UCL Discovery
DOI: 10.1002/cepa.343
Publisher version: http://dx.doi.org/10.1002/cepa.343
Language: English
Additional information: © Wilhelm Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co. KG. Reproduced with permission.
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng
URI: https://discovery.ucl.ac.uk/id/eprint/1575842
Downloads since deposit
67Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item