交通科技
交通科技
교통과기
TRANSPORTATION SCIENCE & TECHNOLOGY
2014年
5期
25-27
,共3页
矮塔斜拉桥%索鞍%有限元%静力分析
矮塔斜拉橋%索鞍%有限元%靜力分析
왜탑사랍교%색안%유한원%정력분석
low-pylon cable-stayed bridge%cable Saddle%FEM%static analysis
结合一座矮塔斜拉桥设计、整体计算情况，为研究骑跨式索鞍局部受力状况，采用三维有限元软件建立矮塔斜拉桥索鞍区有限元模型，选取整体计算中最不利荷载进行静力分析，得到了桥塔索鞍区混凝土和索导管应力分布状况，分析索鞍处混凝土应力规律，对索鞍锚固区设计方案进行综合评价，并提出改进建议。
結閤一座矮塔斜拉橋設計、整體計算情況，為研究騎跨式索鞍跼部受力狀況，採用三維有限元軟件建立矮塔斜拉橋索鞍區有限元模型，選取整體計算中最不利荷載進行靜力分析，得到瞭橋塔索鞍區混凝土和索導管應力分佈狀況，分析索鞍處混凝土應力規律，對索鞍錨固區設計方案進行綜閤評價，併提齣改進建議。
결합일좌왜탑사랍교설계、정체계산정황，위연구기과식색안국부수력상황，채용삼유유한원연건건립왜탑사랍교색안구유한원모형，선취정체계산중최불리하재진행정력분석，득도료교탑색안구혼응토화색도관응력분포상황，분석색안처혼응토응력규률，대색안묘고구설계방안진행종합평개，병제출개진건의。
According to the design and the global analysis of a low-pylon cable-stayed bridge,three-di-mensional finite element model is set up via the finite element analysis software,and the stressed per-formance of the straddle-type cable saddle is studied.In local analysis,the stress distribution of the concrete of cable saddle zone and cable tube are obtained under the most unfavorable loads which is ob-tained from global static analysis.The design scheme of cable-pylon anchorage zone is evaluated based on the analysis of the stress distribution of cable saddle,and several improvement opinions are put for-ward.
