Span Limitation of Self-anchored Cable-stayed Bridges and Possibility on Further Extension Using Partially Earth-anchored System
Autor(en): |
Masatsugu Nagai
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Medium: | Tagungsbeitrag |
Sprache(n): | Englisch |
Tagung: | 35th Annual Symposium of IABSE / 52nd Annual Symposium of IASS / 6th International Conference on Space Structures: Taller, Longer, Lighter - Meeting growing demand with limited resources, London, United Kingdom, September 2011 |
Veröffentlicht in: | IABSE-IASS 2011 London Symposium Report |
Jahr: | 2011 |
Abstrakt: |
This paper gives a span limitation of self-anchored cable-stayed bridges from mechanical and economic considerations. The limit span is controlled from economical viewpoint, which is cost comparison between cable-stayed and suspension bridges. From 1200 to 1400-meter span will be the limit. Possibility of further extension by employing partially earth-anchored system is presented. The mechanical advantage of this system is minor and, taking into account of constructability, it is given that realization from practical viewpoint will be hopeless. |
Stichwörter: |
Schrägseilbrücken
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