Out-of-plane stability of roller bent steel arches – an experimental investigation

D.B. La Poutre, R.C. Spoorenberg, H.H. Snijder, J.C.D. Hoenderkamp

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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.
Original languageEnglish
Pages (from-to)20-34
Number of pages15
JournalJournal of Constructional Steel Research
Volume81
DOIs
Publication statusPublished - 2013

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Steel
Arches
Plastics
Buckling
Hydrostatic bearings
Hinges
Boundary conditions
Defects

Cite this

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title = "Out-of-plane stability of roller bent steel arches – an experimental investigation",
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.",
author = "{La Poutre}, D.B. and R.C. Spoorenberg and H.H. Snijder and J.C.D. Hoenderkamp",
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Out-of-plane stability of roller bent steel arches – an experimental investigation. / La Poutre, D.B.; Spoorenberg, R.C.; Snijder, H.H.; Hoenderkamp, J.C.D.

In: Journal of Constructional Steel Research, Vol. 81, 2013, p. 20-34.

Research output: Contribution to journalArticleAcademicpeer-review

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AU - La Poutre, D.B.

AU - Spoorenberg, R.C.

AU - Snijder, H.H.

AU - Hoenderkamp, J.C.D.

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AB - 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.

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