Structural integrity analysis of the pre-stressed concrete dome of the Belgrade fair hall 1

Author:

Jelić Mirjana1,Sedmak Aleksandar2,Folić Boris3,Sedmak Simon3,Aranđelović Mihajlo4,Folić Radomir5,Radu Dorin6

Affiliation:

1. Intellectual Property Office of the Republic of Serbia, Kneginje Ljubice 5, 11000 Belgrade, Serbia

2. Faculty of Mechanical Engineering in Belgrade, University of Belgrade, Kraljice Marije 16, 11000 Belgrade, Serbia

3. Innovation Centre of Faculty of Mechanical Engineering, Kraljice Marije 16, 11000 Belgrade, Serbia

4. Innovation Centre of Faculty of Mechanical Engineering, Kraljice Marije 16, 11000 Belgrade, Serbia; Faculty of Civil Engineering, University of Brasov, Turnului 5, 500152 Brasov, Romania

5. Faculty of Technical Sciences, University of Novi Sad, Serbia

6. Faculty of Civil Engineering, University of Brasov, Turnului 5, 500152 Brașov, Romania

Abstract

Belgrade fair hall 1 is well known for its dome, which is still the world largest self-supported construction made of pre-stressed concrete, with its diameter of 106 m. In this paper the Finite Element Method (FEM) was performed to analyze different loading and supporting conditions. At the same time, crack growth in a support column was simulated by the extended FEM (XFEM). Results of numerical calculations indicate ingenious design of such a complex structure which was based on “hand” calculation decades ago, without computers. In addition to classical engineering and more advanced numerical calculations, risk based analysis was performed taking into account artificially introduced crack and Failure Analysis Diagram, obtained using stress intensity factor and net stress, as well as fracture toughness and critical stress. This analysis, made for the first time for Belgrade fair hall 1, proved that its structural integrity is jeopardized only when a crack reaches half the thickness of a steel bar.  

Publisher

Gruppo Italiano Frattura

Subject

Mechanical Engineering,Mechanics of Materials,Civil and Structural Engineering

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