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随着电视塔、输电塔的大量建设,柔性拉杆的应用越来越广泛。但是目前柔性拉杆张拉中存在应力施加不准确、操作施工不方便等问题。针对这些问题,本文提出了一种新型的跨越式柔性拉杆张拉器,并利用通用有限元分析软件ABAQUS对其进行了优化设计和静力弹塑性分析。结果表明:通过合理设计前后腰形缺口板,跨越式张拉器可以对柔性拉杆施加预计的预拉力值,对于工程中普遍使用的φ30、Q345的柔性拉杆,腰形缺口板的重量为2.05kg。
With the television tower, a large number of transmission towers, the application of flexible rod more widely. However, there are problems such as inaccurate stress application, inconvenient operation and construction in the flexible tension bar. In response to these problems, this paper presents a new type of span-type flexible tie-rod tensioner, which is optimized and elasto-plastic analyzed using the general finite element analysis software ABAQUS. The results show that the pre-tensioned prestressing force can be applied to the flexible tie rod by properly designing the front and back waist-notched plates. For the flexible tie rods of φ30 and Q345 commonly used in the project, the weight of the waist-shaped notched plate is 2.05kg .