成都清水河自锚式悬索桥吊索张拉力误差对成桥索力的影响研究

自锚式悬索桥施工张拉过程中吊索的欠、超张拉现象不可避免都会出现。吊索的欠、超张拉对自锚式悬索桥成桥索力情况都会产生一定程度的影响。因此,在施工和控制中必须对吊索的欠、超张拉程度对全桥成桥索力影响情况有个充分的了解,以便在施工过程中能及时采用措施或改变张拉方案。从而确保成桥索力的均匀和成桥线形的合理。该文通过某一工程实例的数值计算分析,初步探讨了吊索的欠、超张拉对桥梁成桥索力的影响情况。

Study on Influence of Suspension Cable Tensile Force Error of Self-anchored Suspension Bridge on Chengdu Qingshui River on Cable Force of Completed Bridge

The less tension and ultra tension of suspension cable will occurr inevitably in the course of the tensioning construction of self-anchored suspension bridge. The less tension and ultra tension of suspension cable will produce some influence on the cable force of self-anchored suspension bridge. Therefore, it must be fully to understand the influence of less tension and ultra tension levels of the suspension cable on the cable force of the whole bridge so as to take the measure or change the tensile scheme ...