不同挂载位置下输电塔子结构性能试验研究
引用文献：
刘湘莅 董玉明 房正刚 刘蕊 赵伟博. 不同挂载位置下输电塔子结构性能试验研究[J]. 建筑结构，2022，48（14）：65-71.
LIU Xiangli DONG Yuming FANG Zhenggang LIU Rui ZHAO Weibo. Experimental study on substructure performance of transmission tower under different mounting positions[J]. Building Structure，2022,48（14）：65-71.
摘要：共享输电塔依靠抗滑移连接件将通讯设施与电力设施结合，而输电塔在设计之初并未考虑这种方案。因此，有必要进一步明确挂载对输电塔性能的影响。为分析不同挂载位置对输电塔整体承载性能的影响，在输电塔中选取子结构，并以挂载位置为变化参数进行了单调拟静力试验。结果表明：不挂载时，主材的破坏模式为弯扭失稳，在挂载作用下主材破坏模式均呈现为弯曲失稳。竖向挂载与侧向挂载的联合作用对子结构整体的承载力有所削弱，辅材对主材的支撑作用是不可忽略的。基于挂载对试件承载力的削弱程度，建议在挂载时使用相邻节间挂载。
关键词：共享输电塔；挂载位置；承载性能；单调拟静力试验；抗滑移连接件
基金：国家电网有限公司总部科技项目资助(5217L0190009)。
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Experimental study on substructure performance of transmission tower under different mounting positions
Abstract: The shared transmission tower relies on anti sliding connectors to combine communication facilities with power facilities. However, this scheme was not considered at the beginning of the design of the transmission tower, so it is necessary to study the influence of mounting on the performance of the transmission tower. In order to analyze the influence of different mounting positions on the overall bearing capacity of transmission tower, the substructure was selected in the transmission tower, and the monotonic quasi-static test was carried out with the mounting position as the variable parameter. The results show that the failure mode of the main material is bending and torsion instability when it is not attached, and the failure mode of the main material is bending instability when it is attached; the combined action of vertical and lateral loading weakens the overall bearing capacity of the substructure; the supporting effect of auxiliary materials on the main material can not be ignored. Based on the degree of weakening of the bearing capacity of the specimen by the mountings, it is recommended to use adjacent inter-sectional mountings in the mountings.
Keywords: shared transmission tower; mounting position; bearing capacity; monotonic quasi-static test; anti sliding connector
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