My first Magazine dsi-info-23-en | Page 56

Construction—APAC—Myanmar—Bridges The Tamwe Flyover: DYWIDAG Post-Tensioning Systems for Yangon’s longest Viaduct In Yangon (Rangoon) in southern Myanmar, several viaducts are being built that will enhance traffic flow. One of these viaducts is the Tamwe Bridge that will connect three of the city’s most congested roads by a Y shaped intersection. At a length of 1,477m, the Tamwe Flyover will be Yangon’s longest viaduct. The flyover has a foundation consisting of reinforced concrete bored piles and is designed for loads of up to 75t. The viaduct’s 11.2m cantilever pier heads were post-tensioned using DYWIDAG Strand Tendons. In total, Utracon supplied and installed 114 Type 19-0.6" DYWIDAG Strand Tendons and 12 Type 37-0.6" DYWIDAG Strand Tendons including anchorages and 56 accessories with a total strand tonnage of 22.3t. To make the construction of the long cantilevering elements easier, Utracon also suggested a suitable construction method and solutions for the formwork system that was used. Thanks to the close cooperation with the General Contractor, Utracon was able to successfully install the DYWIDAG Strand Post- Tensioning Systems despite the congested reinforcement with small interstices. Owner Yangon City Development Committee (YCDC), Myanmar General Contractor Shwe Taung Development Co., Ltd, Myanmar Consulting Engineers P.T. Waagner-Biro Indonesia, Indonesia DSI Licensee Utracon Overseas Pte Ltd., Singapore Utracon Scope Supply, installation DYWIDAG Products 114 Type 19-0.6" DYWIDAG Strand Tendons and 12 Type 37-0.6" DYWIDAG Strand Tendons including anchorages and accessories