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Cable-stayed Bridge in Bangkok (Thailand)

Top) Full view of twin cable-stayed bridges
Bottom) Lifting and construction of large block
Bangkok to Samutprakarn, Thailand
[Project Owner]
Ministry of Transport, Thailand

Bangkok Ring Road Cable-stayed Bridge

To alleviate traffic congestion in Bangkok, which has become increasingly serious in recent years, the construction of a ring road annularly connecting the international port isolated by the meandering Chao Phraya River and two huge industrial complexes was carried out as a national project under the direction of HM the King of Thailand. Described here are the twin cable-stayed bridges among the bridges extending about 8 km in total, constructed in the locations where the ring road crosses the River.
Bangkok is located in a region with very soft ground, and costs were always the bottleneck in the construction of a long-span bridge that requires huge supporting force. However, various ideas to resolve this problem, such as applying a PC structure to the footing and the main towers and reducing the weight by adopting a composite structure in the side spans, have finally resulted in the achievement of wide, long-span cable-stayed bridges with extremely high cost performance.
The construction of the bridges was carried out at a feverish pace in response to the eagerness of the citizens of Bangkok for the earliest opening. Sixty percent of the construction costs of the bridges are covered by the loan aid to the government of Thailand as part of Japan’s ODA.