Rama IX Bridge

Rama IX Bridge
Rama IX Bridge
Coordinates	13°40′55″N 100°31′08″E / 13.682058°N 100.519001°E
Carries	6 lanes of roadway
Crosses	Chao Phraya river
Locale	Bangkok, Thailand
Characteristics
Design	cable-stayed
Total length	781.20 m
Width	33 m
Height	87 m
Longest span	450 m
Clearance below	41 m
History
Construction start	1 October 1984
Opened	5 December 1987
Location

Rama IX Bridge is a bridge in Bangkok, Thailand over the Chao Phraya river. It connects the Yan Nawa district to Rat Burana district as a part of the Dao Khanong – Port Section of Chalerm Maha Nakhon Expressway.^[1]

The bridge was named in honour of King Bhumibol Adulyadej's 60th birthday; the opening date coincides with the King's birthday. It was the first cable-stayed bridge in Thailand^[1] and had the second longest cable-stayed span in the world when it opened in 1987.^[2]

The original colour scheme, with white pylons and black cables, was replaced with an all yellow scheme representing the King in 2006.^[3]

Structure of the bridge

The steel superstructure includes the bridge, rigged mast, cable. The Main Span of the bridge, which is stretched between two poles has a length of 450 meters. The Main Span is a trapezoid shape 33 meters wide.The bridge has a walkway along its side. The bridgehas two main pylons 3.00 m x 4.50 m. This serves to hold the tension of the cable and weight into the pylon pier. The 121 – 167 mm diameter cables consist of many small wires wound together. The cables vary in lengthfrom 50 to 223 meters can absorb the tension for 1,500 - 3,000 tons.^[4]

References

^ ^a ^b "Rama IX Bridge". Expressway and Rapid Transit Authority of Thailand. Retrieved 1 February 2008.
^ "Rama IX Bridge - 10th Year Inspection & Evaluation". OPAC Consulting Engineers. 2001. Retrieved 1 February 2008.
^ "Strength in yellow". The Nation. 10 May 2006. Retrieved 1 February 2008. ^{[dead link]}
^ Ramkhamhaeng University Library staff (5 November 2008). "Rama9 Bridge" Ramkhamhaeng University Library.Retrieved 2013-10-20.From http://www.lib.ru.ac.th/journal/bangkok/rama9.html

External links

Rama IX Bridge at Structurae

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[ETA-1] "Rama IX Bridge". Expressway and Rapid Transit Authority of Thailand. Retrieved 1 February 2008.

[2] "Rama IX Bridge - 10th Year Inspection & Evaluation". OPAC Consulting Engineers. 2001. Retrieved 1 February 2008.

[3] "Strength in yellow". The Nation. 10 May 2006. Retrieved 1 February 2008. ^{[dead link]}

[4] Ramkhamhaeng University Library staff (5 November 2008). "Rama9 Bridge" Ramkhamhaeng University Library.Retrieved 2013-10-20.From http://www.lib.ru.ac.th/journal/bangkok/rama9.html

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v t e Cable-stayed bridges in Southeast Asia
Brunei	Raja Isteri Pengiran Anak Hajah Saleha Bridge
Cambodia	Neak Loeung Bridge
Indonesia	Ampera Bridge Barelang Bridge Merah Putih Bridge Pasupati Bridge Suramadu Bridge
Malaysia	Langkawi Sky Bridge Muar Second Bridge Penang Bridge Sultan Abdul Halim Muadzam Shah Bridge (Second Penang Bridge) Prai River Bridge Seri Saujana Bridge Seri Wawasan Bridge Sungai Johor Bridge
Philippines	Cebu–Cordova Link Expressway Macapagal Bridge Marcelo Fernan Bridge
Thailand	Bhumibol Bridge Kanchanaphisek Bridge Rama VIII Bridge Rama IX Bridge Maha Chesadabodindranusorn Bridge
Vietnam	Ba Son Bridge Bạch Đằng Bridge Bãi Cháy Bridge Bính Bridge Bình Khánh Bridge Cao Lãnh Bridge Cần Thơ Bridge Đại Ngãi Bridge Hàn River Bridge Kiền Bridge Mỹ Thuận Bridge Mỹ Thuận 2 Bridge Nhật Tân Bridge Phú Mỹ Bridge Phước Khánh Bridge Rạch Miễu Bridge Rạch Miễu 2 Bridge Trần Thị Lý Bridge Vàm Cống Bridge
Cable-stayed bridges by country

Structure of the bridge

See also

References

External links