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膜结构在张力作用下会产生松弛,建筑外观一段时间后会受影响。膜结构施工完成后应再次导入张力,也就是膜结构二次张拉问题。在二次张拉过程中,膜预应力是在逐步张拉过程中实现的,本文运用ANSYS对施工过程模拟,就目前应用较为广泛的组合式伞形膜结构二次张拉施工模拟方法进行探究,期盼提供一些施工参考建议。
The membrane structure will relax under tension and the appearance of the building will be affected over time. After the construction of the membrane structure should be re-introduced into the tension, which is the secondary tension membrane structure. In the process of secondary tensioning, the prestress of the membrane is realized in the process of gradual tensioning. In this paper, the construction process simulation is carried out by using ANSYS, and the simulation method of the secondary tensioning of the combined umbrella-shaped membrane structure , Looking forward to provide some suggestions for construction.