IN-PLANE AND OUT-OF-PLANE INSTABILITY OF A 297 M SPAN STEEL ARCH BRIDGE
Ohmishima Bridge, which is now under construction in Japan, is a steel highway bridge spanning 297 m (974.4ft.) of a half-through two-hinged solid rib arch stiffened by side ties. The two main arch ribs of box section are stiffened respectively, by two side ties. One end of each tie is fixed to the top of an abutment in both side spans. Bending moments and stresses due to live loads or wind loads in the arch ribs can be reduced by the stiffening ties more than those of ordinary two-hinged arches, and the steel weight of the ribs decreases considerably. Therefore, this new type arch is more economical than an ordinary two-hinged or fixed solid rib arch. Since the arch ribs become more slender, geometrical nonlinearity of the arch may be more remarkable. To investigate the geometrical and material nonlinearities of such a long-span and unusual type of steel arch bridge including overall in elastic instability, extensive experimental and analytical studies were carried out. In this paper, the results of the analytical study with discussions are reported. The combined nonlinear analyses are performed by a matrix method based on finite displacement theory for in-plane and out-of-plane instability. It was confirmed that the side ties for stiffening a two-hinged arch bridge are very effective for the reduction of stresses and geometrical nonlinearities and for an increase of overall ultimate strength in-plane or out-of-plane of the arch. /Author/
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/0309026962
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Supplemental Notes:
- This paper appeared in Transportation Research Record No. 664, Bridge Engineering, Volume 1. Proceedings of a conference conducted by the Transportation Research Board, September 25-27, 1978. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
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Authors:
- Maeda, Yukio
- Hayashi, Masa
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Conference:
- Bridge Engineering Conference, 1st, 1978, St Louis, Missouri, USA
- Location: St Louis Missouri, United States
- Date: 1978-9-25 to 1978-9-28
- Publication Date: 1978
Media Info
- Media Type: Print
- Features: Figures; References; Tables;
- Pagination: pp 246-254
- Monograph Title: Bridge Engineering. Volume 1
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Serial:
- Transportation Research Record
- Issue Number: 664
- Publisher: Transportation Research Board
- ISSN: 0361-1981
Subject/Index Terms
- TRT Terms: Arch bridges; Bending moments; Box girders; Bridge superstructures; Highway bridges; Mathematical analysis; Metal bridges; Steel bridges; Stiffness; Stresses; Ultimate strength
- Uncontrolled Terms: Bridge spans
- Old TRIS Terms: Ribs (Structural)
- Subject Areas: Bridges and other structures; Highways;
Filing Info
- Accession Number: 00183771
- Record Type: Publication
- ISBN: 0309026962
- Files: TRIS, TRB
- Created Date: Dec 12 1978 12:00AM