孟加拉卡纳普里三桥主桥施工

孟加拉卡纳普里三桥主桥为四塔五跨预应力混凝土单索面部分斜拉桥,针对该桥地址、水文及200 m主跨设4根桩,24 m宽单箱梁等结构特点,施工中采取相应技术措施,如基础施工中对钻孔桩上端的钢筋密集段采取二次干浇的方法;上部结构施工中钢绞线临时固结墩梁施工大跨度连续梁方案、大吨位斜拉索多批次张拉等,经过约2年建设工期,大桥顺利合龙.

Construction of Main Bridge of the 3rd Karnaphuli Bridge in Bangladesh

The main bridge of the 3rd Karnaphuli Bridge in Bangladesh is a 5-span prestressed concrete extradosed bridge with 4 pylons and a single cable plane.In the light of the geologic andhydrologic conditions at the bridge site and also the structural characteristics of the bridge that 4 bored piles were arranged for each pier of the 200-m main spans and the single box girder was 24 m wide,the corresponding technical measures were taken in the construction.The measures that were taken mainly included the two-time...