Investigation on the Existing Geometry of Pathein Suspension Bridge

Pathein Suspension Bridge constructed across Pathein River completed in 2004 is a single-span suspension bridge. The region has soft alluvial ground. According to 2012 bridge inspection report, Current Situation and Issues of Myanmars Bridge Work, this suspension bridge had lost a great deal of camber since completion. And also it is found that there are some problems such as movement of anchor block, tilting tower. In this study, investigations on the existing of Pathein suspension bridge are presented by using 3D laser scanner, and site surveying. According to the investigation results, it is found that all towers are inclined towards river and the maximum inclination occurs the downstream tower of Chaungthar side. The downstream main cable sag is lower than the upstream one. Most hangers are inclined towards Pathein side and the maximum inclination degree occurs at middle portion. The existing truss profile is very different from as per drawing and all truss nodes are under the horizontal surface. Therefore seismic risk assessment and disaster mitigation plan for unexpected future severe earthquake should be developed. Win Bo | Khin Maung Zaw | Kyaw Kyaw "Investigation on the Existing Geometry of Pathein Suspension Bridge" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-6 , October 2018, URL: http://www.ijtsrd.com/papers/ijtsrd18436.pdf