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Out-of-plane stability of roller bent steel arches — An experimental investigation
- Source :
-
Journal of Constructional Steel Research . Feb2013, Vol. 81, p20-34. 15p. - Publication Year :
- 2013
-
Abstract
- Abstract: This paper presents an experimental investigation of the elastic-plastic out-of-plane buckling response of roller bent circular steel arches subjected to a single force applied to the crown. The experiments are used to validate a finite element model described in a related paper. A series of 15 tests was performed on full-scale and model arches where the developed length of the arches was kept constant. The subtended angle was varied between 90° and 180°. Each full-scale arch configuration was tested at least twice to monitor experimental scatter and assess the repeatability of the tests. Special attention was paid to the boundary conditions: at the crown the load was introduced at the centroid of the arch-rib with the use of hydrostatic bearing to eliminate any torsional restraint. Loading was applied by means of a tension rod affixed to the centre of the baseline, rendering a directed load. The supports were designed such that they acted as hinges in-plane while they were fixed out-of-plane. Geometric imperfections were measured prior to loading. All arches failed by elastic-plastic out-of-plane buckling featuring the presence of plastic zones in the arch-rib and out-of-plane arch deformation. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 0143974X
- Volume :
- 81
- Database :
- Academic Search Index
- Journal :
- Journal of Constructional Steel Research
- Publication Type :
- Academic Journal
- Accession number :
- 84764804
- Full Text :
- https://doi.org/10.1016/j.jcsr.2012.11.004