The Seri Wawasan Bridge is one of the main bridges in the planned city Putrajaya, the new (2001) Malaysian federal territory and administrative centre. This futuristic asymmetric cable-stayed bridge with a forward-inclined pylon has a sailing ship appearance, accented at night with changeable color lighting. The bridge, also called Bridge No. 9,[1] crosses Putrajaya Lake, an artificial lake made to provide natural cooling, and connects Precinct 2 on the Core Island, where the main government buildings are located, to the residential area of Precinct 8, 9.[2]
Seri Wawasan Bridge Jambatan Seri Wawasan | |
|---|---|
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| Coordinates | 2°55′41.1″N 101°41′3.0″E / 2.928083°N 101.684167°E |
| Carries | Motor vehicles, Pedestrians |
| Crosses | Putrajaya Lake |
| Locale | Lebuh Seri Wawasan |
| Official name | Seri Wawasan Bridge |
| Maintained by | Perbadanan Putrajaya |
| Characteristics | |
| Design | cable-stayed bridge |
| Total length | 240 m |
| Width | 37.2 m |
| Longest span | 168.5 m |
| History | |
| Designer | PJSI Consultants |
| Constructed by | Perbadanan Putrajaya |
| Opened | 2003 |
| Location | |
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Structure
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The Seri Wawasan Bridge is a longitudinally asymmetric cable‐stayed box-girder bridge with an inverted-Y shape concrete/steel pylon 96 metres (315 ft) high. The main span, 165 metres (541 ft) long, is supported by 30 pairs of forward stay cables, anchored on the 75° forward‐inclined pylon and on the outer edges of the bridge deck, arranged in a fan shape pattern from the side elevation. To counterbalance these front stays, a combination of 21 pairs of cable backstays and structural steel tie back was used. The back stay anchored at the (next-) highest point of the pylon is anchored at the curved backstay anchorage point (next-) nearest to the pylon, creating a crisscross‐over pattern from the side elevation,[3] which adds to the aesthetic of the bridge. The overall complexity of the back stay tie back structure, however, may be aesthetically distracting.[4] The inclined concrete pylon and the backstays are anchored into bore piled foundation off the roadway in precinct 8.
The bridge carries a dual three lane carriageways of 18.6 m width each, comprising 3 x 3.5 m width lanes, 0.5 m hard shoulder, 0.5 m marginal strip. The median is 4 m wide and walkway cum cycle track width is 5.1 m giving a total width of 37.2 metres (122 ft) at the centre of the bridge.
Gallery
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Seri Wawasan Bridge at night -
Core island, precinct 2 (left), Seri Wawasan Bridge (center), Precinct 8 (right)
See also
editOther bridges providing access to the Core Island in the planned city Putrajaya, Malaysia
References
edit- ^ "PJSI BR 9". pjsi.net. Retrieved 6 June 2016.
- ^ "Putrajaya Map" (PDF). aprsaf.org. Retrieved 6 June 2016.
- ^ LEE, Chang Long. "A study and evaluation on Seri Wawasan bridge in Putrajaya, Malaysia". USQ ePrints. Retrieved 6 June 2016.
- ^ Amaratunga, T.N. "A critical analysis of Seri Wawasan Bridge, Putrajaya, Malaysia". researchgate.net. Retrieved 6 June 2016.
External links
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Media related to Seri Wawasan Bridge at Wikimedia Commons