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单铰节点是混凝土结构单元交接处的一种支座形式。因其构造简单、不占使用面积而常被采用。一般在体量较大的结构单元柱上设牛腿,体量较小的结构单元梁则连接置于其上;构造上常采用二层油毡隔开,以期达到滑动铰接的目的。实际施工时,牛腿表面不可能做到十分光滑,油毡间的摩擦阻
The single hinge joint is a form of support for the junction of concrete structural units. Because of its simple structure, it does not occupy the use of area and is often used. Generally, bovine legs are arranged on the column of the structural unit with a large volume, and the beam of the structural unit with smaller volume is connected to it; the structure is often separated by two layers of felt to achieve the purpose of sliding hinge. In the actual construction, the surface of the calf leg cannot be very smooth, and the frictional resistance between the felts