【摘要】 未设形状记忆合金(SMA)的滑移支撑是自复位SMA支撑的重要组成部分，需明确其力学性能，从而为自复位SMA支撑的分析与设计提供理论基础。滑移支撑主要由四块钢板、两个滑移螺栓、两个固定螺栓、丁基橡胶垫片和普通垫片组成。对4个考虑螺栓扭矩的滑移支撑进行试验研究，并采用校正的有限元法分析4个考虑不同类型垫片摩擦系数的模型，得到相应的滞回性能和耗能能力。结合试验和有限元研究结果，分析不同位移下滑移支撑摩擦面的变化规律，并总结了各阶段支撑的摩擦面数目，以明确滑移支撑的力学模型。更多还原

【Abstract】 A slip damped brace(SDB) without shape memory alloy(SMA) is an important component of an innovative self-centering SMA brace, so the mechanical property of SBC should be studied to provide a new way to give the analysis and design reference for the innovative self-centering SMA brace.The SDB is composed of four steel plates, two slip bolts, two fixed bolts, low modulus shims and steel shims.Cyclic tests were carried on slip damped brace specimens to consider the effect of bolt torque, and four numerical models are conducted to investigate the influencing factor of friction coefficient by verified finite element method, so the hysteresis curves and energy dissipation capacity can be obtained.Finally, by combining with the test and FE results, the change rules of friction surfaces in slip damped brace under different displacement will be revealed in detail, and the numbers of slip surfaces in different stage are summarized, so the mechanical model of slip damped brace can be obtained,.更多还原