The Highly Sustainable Kanchanaphisek Bridge—Thailand’s Longest Span
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Bibliographic Details
| Author(s): |
Siri Prakunhungsit
Ruchu Hsu |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Symposium: Sustainable Infrastructure - Environment Friendly, Safe and Resource Efficient, Bangkok, Thailand, 9-11 September 2009 | ||||
| Published in: | IABSE Symposium Bangkok 2009 | ||||
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| Page(s): | 37-45 | ||||
| Total no. of pages: | 7 | ||||
| Year: | 2009 | ||||
| DOI: | 10.2749/222137809796067515 | ||||
| Abstract: |
The Kanchanaphisek Bridge, with a 500-meter main span, has the longest bridge span in Thailand. The cable-stayed structure was designed to be a long lasting, sustainable and owner-friendly bridge. Two A-shaped towers with three anchor piers in each back span make the bridge torsionally stiff to resist high winds. A reinforced concrete deck slab and tower foundation tie beams provide for bridge longevity. Simple low cost ladders and platforms provide ready access to the cable top and bottom anchors for inspection and maintenance activities. Concrete counterweights, instead of tie- downs, were used to eliminate uplift. The bridge is also noteworthy in that it has no bearings, thereby eliminating the need for bearing inspection and replacement. |
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| Keywords: |
cable-stayed bridge stay cable counterweight deck replacement Kanchanaphisek cable anchor bumper
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