A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
In-plane buckling strength of high strength steel I-section arches
Graphical abstract Display Omitted
Highlights In-plane inelastic buckling strength of high-strength steel arches are studied. Finite element model is developed and verified using existing experimental results. Design codes for compression members are found not applicable to stocky arches. Design equations are formulated for combined compressive-bending actions. Effects of residual stress and geometric imperfections on strength are investigated.
Abstract This paper investigates the in-plane inelastic buckling of high strength steel (HSS) circular arches with pinned or fixed end supports. A finite element (FE) model is developed to analyse in plane behaviour and buckling loads of HSS circular arches under general loading conditions which considers geometric non-linearity, material inelasticity, initial imperfection and residual stresses of welded HSS I-sections. The FE model is validated by comparison to analytical elastic buckling loads for arches in uniform compression, and experimental results reported in the literature on the out-of-plane elastic-plastic buckling of steel arches. It is found that current design codes for normal strength steel (NSS) structures require modification before application to HSS arches. Based on the results of the FE analysis, design equations are proposed which are in-line with existing provisions for NSS structures for both fixed and pin-ended arches under uniform compression and combined compressive and bending actions. The presented design rules give good lower-bound predictions for in-plane buckling strength of fixed and pinned HSS arches. Additionally, the influence of residual stresses and size of initial geometric imperfections on in-plane buckling strength are explored.
In-plane buckling strength of high strength steel I-section arches
Graphical abstract Display Omitted
Highlights In-plane inelastic buckling strength of high-strength steel arches are studied. Finite element model is developed and verified using existing experimental results. Design codes for compression members are found not applicable to stocky arches. Design equations are formulated for combined compressive-bending actions. Effects of residual stress and geometric imperfections on strength are investigated.
Abstract This paper investigates the in-plane inelastic buckling of high strength steel (HSS) circular arches with pinned or fixed end supports. A finite element (FE) model is developed to analyse in plane behaviour and buckling loads of HSS circular arches under general loading conditions which considers geometric non-linearity, material inelasticity, initial imperfection and residual stresses of welded HSS I-sections. The FE model is validated by comparison to analytical elastic buckling loads for arches in uniform compression, and experimental results reported in the literature on the out-of-plane elastic-plastic buckling of steel arches. It is found that current design codes for normal strength steel (NSS) structures require modification before application to HSS arches. Based on the results of the FE analysis, design equations are proposed which are in-line with existing provisions for NSS structures for both fixed and pin-ended arches under uniform compression and combined compressive and bending actions. The presented design rules give good lower-bound predictions for in-plane buckling strength of fixed and pinned HSS arches. Additionally, the influence of residual stresses and size of initial geometric imperfections on in-plane buckling strength are explored.
In-plane buckling strength of high strength steel I-section arches
Bouras, Yanni (author) / Vrcelj, Zora (author)
2021-10-14
Article (Journal)
Electronic Resource
English
In-plane inelastic buckling and strength of steel arches
| British Library Conference Proceedings | 2007
Out-of-Plane Inelastic Buckling and Strength of Steel Arches
| British Library Online Contents | 1998
Out-of-Plane Inelastic Buckling and Strength of Steel Arches
| Online Contents | 1998