论文部分内容阅读
甬台温铁路雁荡山特大桥主跨为2×90m钢箱梁叠合拱结构,两孔主拱间设钢箱辅助拱。该桥钢箱梁落梁就位后,对该桥成桥施工过程中的线形、应力以及吊杆索力进行计算和监测。结果表明:全桥的应力控制在比较低的水平,终张拉实测索力与目标值比较吻合,全桥的最终线形也接近于设计值。
The main span of the Yandangshan Grand Bridge of Ningbo-Taizhou-Wenzhou Railway is a 2 × 90m steel box girder laminated arch structure with a steel box auxiliary arch between the two main bays. After the steel box girder of the bridge was put in place, the linear shape and stress of the bridge during construction and the cable force of the boom were calculated and monitored. The results show that the stress of the whole bridge is controlled at a relatively low level, and the actual measured cable force at the end tension is in good agreement with the target value. The final linear shape of the full bridge is also close to the designed value.