Abstract
This paper aims at showing the potential of geometrically exact beam finite elements to assess, accurately, the non-linear behavior of steel and steel-concrete composite beam-columns. First, one discusses the formulation and implementation aspects of 2D/3D geometrically exact beam finite elements, including geometric imperfections, residual stresses and material non-linear laws for both steel and concrete. Then, a set of numerical examples is provided, to demonstrate the capabilities of the proposed finite elements. Finally, the finite elements are employed to investigate: (i) the buckling behavior of concrete encased steel I-section beam-columns and (ii) the lateral-torsional buckling behavior of wide flange steel I section beams. The results obtained are then compared with the buckling loads provided by Eurocodes 3 (steel) and 4 (steel-concrete) and relevant conclusions/recommendations are drawn.
Original language | English |
---|---|
Title of host publication | Structural Stability Research Council Annual Stability Conference 2019, SSRC 2019 |
Publisher | Structural Stability Research Council (SSRC) |
Pages | 196-213 |
Number of pages | 18 |
Volume | 1 |
ISBN (Electronic) | 9781510884465 |
Publication status | Published - 2019 |
Event | Structural Stability Research Council Annual Stability Conference 2019, SSRC 2019 - St. Louis, United States Duration: 2 Apr 2019 → 5 Apr 2019 |
Conference
Conference | Structural Stability Research Council Annual Stability Conference 2019, SSRC 2019 |
---|---|
Country/Territory | United States |
City | St. Louis |
Period | 2/04/19 → 5/04/19 |