Rama VIII Bridge, Thailand
Owner/Client:		Bangkok Metropolitan Administration
Main Contractor:		JV China State Construction and Engineering Co. Ltd; PPD Construction Co. Ltd; BBR Systems Ltd
Consultants:		Mott Macdonald; Epilson; Buckland & Taylor Ltd.
Scope of work by BBR:		Supply and installation of BBR CONA STAYS and CONA Compact prestressing system
Bridge Data:		Total length 475 m; stay cable main span 300m from 1 pylon; composite deck 29 m wide
Quantities:		84 BBR CONA STAYS types 11-06 to 65-06; lengths 69m to 325m; total stay steel 670 tons; BBR CONA Compact types 12-05 to 31-05; 270 tons of PT strands
Years of Execution:		1998-2002

Project Description:

This bridge in the middle of Bangkok commemorates the memory of King Rama VIII and is a prestigious part of the Bangkok transport system. It crosses the Chao Phraya River with the tower located on the river bank. The bridge has 2 lanes per traffic direction (3.5 m / lane), and a bicycle and walkway lane.


It is an unsymmetrical cable stayed bridge with one Y shape pylon which is 163 m high.

The river side stays are arranged in a double plane and the back stays are in a single plane. The total length, including the approach spans, is 2.45 km. The construction of the main span proceded by cantilevered construction, with deck segments floated in by barge and lifted by gantry cranes on the deck. Prestressing operations and cables installation were conducted by BBR Thailand.