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The Seri Wawasan Bridge is one of the main bridges in the planned city
The Seri Wawasan Bridge is a longitudinally asymmetric cable‐stayed box-girder bridge with an inverted-Y shape concrete/steel pylon high. The main span, 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, which adds to the aesthetic of the bridge. The overall complexity of the back stay tie back structure, however, may be aesthetically distracting. 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 at the centre of the bridge.
File:Seri Wawasan Bridge at Night.JPG, Seri Wawasan Bridge at night
File:Putrajaya Jan 2007.jpg, Core island, precinct 2 (left), Seri Wawasan Bridge (center), Precinct 8 (right)
Putrajaya
Putrajaya (), officially the Federal Territory of Putrajaya ( ms, Wilayah Persekutuan Putrajaya), is a planned capital city which functions as the administrative capital and the judicial capital of Malaysia. The seat of the federal government ...
, the new (2001) Malaysia
Malaysia ( ; ) is a country in Southeast Asia. The federation, federal constitutional monarchy consists of States and federal territories of Malaysia, thirteen states and three federal territories, separated by the South China Sea into two r ...
n federal territory and administrative centre. This futuristic asymmetric cable-stayed bridge
A cable-stayed bridge has one or more ''towers'' (or ''pylons''), from which cables support the bridge deck. A distinctive feature are the cables or stays, which run directly from the tower to the deck, normally forming a fan-like pattern o ...
with a forward-inclined pylon has a sailing ship appearance, accented at night with changeable color lighting. The bridge, also called Bridge No. 9, crosses Putrajaya Lake
The Putrajaya Lake ( ms, Tasik Putrajaya) is a lake located at the centre of Putrajaya, Malaysia, roughly 33 kilometres south of Kuala Lumpur. This 650-hectare man-made lake is designed to act as a natural cooling system for the city and also fo ...
, 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.
Structure
The Seri Wawasan Bridge is a longitudinally asymmetric cable‐stayed box-girder bridge with an inverted-Y shape concrete/steel pylon high. The main span, 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, which adds to the aesthetic of the bridge. The overall complexity of the back stay tie back structure, however, may be aesthetically distracting. 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 at the centre of the bridge.
Gallery
See also
Other bridges providing access to the Core Island in the planned cityPutrajaya
Putrajaya (), officially the Federal Territory of Putrajaya ( ms, Wilayah Persekutuan Putrajaya), is a planned capital city which functions as the administrative capital and the judicial capital of Malaysia. The seat of the federal government ...
, Malaysia
Malaysia ( ; ) is a country in Southeast Asia. The federation, federal constitutional monarchy consists of States and federal territories of Malaysia, thirteen states and three federal territories, separated by the South China Sea into two r ...
*Seri Saujana Bridge
The Seri Saujana Bridge is a main bridge in the planned city Putrajaya, the new (2001) Malaysian federal territory and administrative centre. The bridge's design is a unique combination of a symmetric cable-stayed structure and a through-arch bri ...
*Seri Perdana Bridge
The Seri Perdana Bridge ( ms, Jambatan Seri Perdana) is a bridge which is built across the Putrajaya Lake in Putrajaya, Malaysia's federal administrative centre.
It is based on royal Islamic architectural design. This bridge contains eight u ...
*Seri Setia Bridge
Seri Setia Bridge is a main bridge in Putrajaya, Malaysia.
The Seri Setia Bridge is located in the southeastern corner of Putrajaya, providing a vital link between Precinct 19 and the Commercial Precinct and the main route to the core island fro ...
*Seri Gemilang Bridge
Seri Gemilang Bridge is a ceremonial bridge in Putrajaya, Malaysia. It connects Heritage Square with Putrajaya Convention Centre.
The bridge has a main span 120 metres (394 ft) long, with a 60-metre (197 ft) span at each end, for a total ...
*Seri Bakti Bridge
The Seri Bakti Bridge ( ms, Jambatan Seri Bakti) is one of the main bridges in Putrajaya, Malaysia. The bridge links the secondary road to Seri Satria, the Deputy Prime Minister's Residence, connecting the Government Precinct in the north to Pr ...
*Seri Bestari Bridge
The Seri Bestari Bridge ( ms, Jambatan Seri Bestari) is a large arch bridge in Putrajaya, Malaysia. The eastern end of the bridge starts in Precinct 16 and the western end starts near Wisma Putra on Core Island.
The bridge has a total length of ...
References
External links
{{Cable-stayed bridges in Southeast Asia Bridges in Putrajaya Cable-stayed bridges in Malaysia Bridges completed in 2003