矮塔斜拉桥主梁合龙温度的选择与控制

On selection and control over closure temperature of main beams at low tower cable-stayed bridges

根据南澳大桥的工程实例,采用理论计算和标高监测,定量给出了大跨径矮塔斜拉桥主梁合龙温度的影响数据,并提出了相应的合龙建议,以确保合龙的顺利进行。

According to the engineering case at Nan’ao Bridge as the example,the paper adopts the theory calculation and level monitoring, provides the influential data of the closure temperature of main beams at large-span low tower cable-stayed bridge,and points out respective closure suggestions,so as to ensure its smooth construction.