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Investigation on the Existing Geometry of Pathein Suspension Bridge

2018; Rekha Patel; Volume: Volume-2; Issue: Issue-6 Linguagem: Inglês

10.31142/ijtsrd18436

2456-6470

Win Bo, Khin Maung Zaw, Kyaw Kyaw,

Structural Engineering and Vibration Analysis

Pathein Suspension Bridge constructed across Pathein River completed in 2004 is a single-span suspension bridge.The region has soft alluvial ground to 2012 bridge inspection report, Current Situation and Issues of Myanmar's 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 using 3D laser scanner, and site surveying.According to the investigation results, it is found that all towers are inclined towards river and the m 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.