Curved deck arch bridges supported by an inclined arch
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Bibliographic Details
| Author(s): |
Luigi Fenu
(University of Cagliari, Cagliari, Italy)
Eleonora Congiu (University of Cagliari, Cagliari, Italy) Bruno Briseghella 
(Fuzhou University, Fuzhou, Fujian Province, PRC)
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Challenges in Design and Construction of an Innovative and Sustainable Built Environment, Stockholm, Sweden, 21-23 September 2016 | ||||
| Published in: | IABSE Congress Stockholm, 2016 | ||||
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| Page(s): | 273-280 | ||||
| Total no. of pages: | 8 | ||||
| DOI: | 10.2749/stockholm.2016.0273 | ||||
| Abstract: |
Curved arch bridges with curved deck supported by an inclined arch either through web members or without are studied. Reference to shell-supported bridges is first made. It must be taken into account that even if the deck is supported by a shell, its bottom free edge (usually stiffened) is described by a thrust line, so that the shell connects the curved deck (that is a horizontal arch) with an inclined 3D funicular arch. A limit case is that the ring girder of the curved deck and the funicular arch merge dividing the shell into two parts, so that, if shell thickness tends to zero, no shell connects them. This is the case of curved bridges supported only at mid-span by an inclined arch. The efficiency of different arches is compared. Moreover, the deck can be supported not only at mid-span but also by web members connecting deck girder and inclined arch. In this latter case, the most appropriate form of the inclined arch is obtained. |
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| Keywords: |
steel bridges concrete shell inclined arch Conceptual Design and Realization Bracing type Pretensioning system
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