Ultimate load of cylindrically curved panels under uniform compression at straight edge and the influence of curvature
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Bibliographic Details
| Author(s): |
Hui Guo
(Railway Engineering Research Institute, China Academy of Railway Sciences, Beijing, China; State Key Laboratory for Track Technology of High-speed Railway, Beijing, China)
Zhibin Zeng (Railway Engineering Research Institute, China Academy of Railway Sciences, Beijing, China; State Key Laboratory for Track Technology of High-speed Railway, Beijing, China) Xiaoguang Lu (Railway Engineering Research Institute, China Academy of Railway Sciences, Beijing, China; State Key Laboratory for Track Technology of High-speed Railway, Beijing, China) Xiaochen Ju (Railway Engineering Research Institute, China Academy of Railway Sciences, Beijing, China; State Key Laboratory for Track Technology of High-speed Railway, Beijing, China) Xinxin Zhao (Railway Engineering Research Institute, China Academy of Railway Sciences, Beijing, China; State Key Laboratory for Track Technology of High-speed Railway, Beijing, China) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Symposium: Engineering the Future, Vancouver, Canada, 21-23 September 2017 | ||||
| Published in: | IABSE Symposium Vancouver 2017 | ||||
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| Page(s): | 1683-1690 | ||||
| Total no. of pages: | 8 | ||||
| Year: | 2017 | ||||
| DOI: | 10.2749/vancouver.2017.1683 | ||||
| Abstract: |
Curved panels are widely used in modern novel steel bridges and buildings. Stability shall be considered for these structures under compressive loads. While it still has many challenges on how to consider stability since there are no guidelines in specifications. In this paper, ultimate load of the cylindrically curved panels were studied. First, accuracy of numerical model was verified by theory and model test. Then the influence of curvature on ultimate load at the straight edge of curved panel was studied. Results showed that the deformation of curved panel was obvious in the direction perpendicular to the panel. The position of maximum deformation was located near the central region and perpendicular to the curved panel. Ultimate load of curved panel is smaller than the straight one. And the ultimate load decreases as the curvature increases with a linear relationship between the reduction factor of local stability and the curvature. |
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| Keywords: |
stability reduction factor curvature ultimate load curved panel steel pylon of cable-stayed bridge elasto-plastic buckling full-scale model test empirical formula
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