Analysis on Mechanics Properties of Steel Flue Gas Duct with Stiffeners in Thermal Power PlantLI Sheng-liang1,SHI Yong-jiu1,WANG Yuan-qing1,LIU Wei2 (1.Department of Civil Engineering,Tsinghua University,Beijing 100084,China;2.Beijing Shougang Design Institute,Beijing 100043,China)FEA models were established to make analysis on the influence of wall panel,horizontal rib stiffener and inside steadying bar to mechanics properties of one typical flue gas duct in fuel electric plant.Discussions were also made to the effect of longitudinal rib stiffener.Finally,some suggestions for design method amendment were proposed.steel flue gas duct;wall panel;stiffener;inside steadying bar