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Structural Performance of Bolted Moment Connections among Single Cold-Formed Channel Sections

机译:单个冷弯槽型段螺栓连接弯矩连接的结构性能

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This paper presents an experimental investigation on bolted moment connections between single cold-formed channels connected back-to-back at the joints. A total of ten column-base connection tests and beam-column sub frame tests with different connection configurations were conducted to investigate the performance of the connections in term of strength and stiffness. Two modes of failure were identified from the tests; 1) Mode BFcsw: Bearing failure in section web around bolt hole. 2) Mode FFcs: Flexural failure of connected section. Among all the tests, the moment resistance of bolted moment connections with four bolts per member ranged 70 - 90 % of the moment capacities of the connected members. Consequently, it can be concluded that the use of cold-formed steel sections connected back-to-back at the joints allows simple and effective connection to be formed among cold-formed steel sections leading to improved build ability.
机译:本文提出了在接头处背对背连接的单个冷弯通道之间的螺栓力矩连接的实验研究。总共进行了十次具有不同连接配置的柱基连接测试和梁柱子框架测试,以研究连接的强度和刚度性能。从测试中确定了两种失败模式: 1)模式BFcsw:螺栓孔周围的型材中的轴承故障。 2)模式FFc:连接部分的弯曲破坏。在所有测试中,每个构件带有四个螺栓的螺栓式力矩连接的力矩阻力为所连接构件的力矩能力的70-90%。因此,可以得出结论,使用在接头处背对背连接的冷弯型钢允许在冷弯型钢之间形成简单而有效的连接,从而提高了制造能力。

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