论文部分内容阅读
从抗倒塌角度出发,采用理论分析和算例计算相结合的方法,对部分柱顶滑移钢筋混凝土框剪结构的框架梁设计、摩擦系数下限值估算、摩擦支座中震耗能等进行了探讨。研究结果表明:1)考虑框架梁塑性铰区受拉纵筋强化并调整设计步骤后,框架梁的经济性更好;2)基于D值法的摩擦系数下限值估算方法与现行规范联系紧密,便于工程人员应用;3)中震作用下摩擦支座可提供较大附加阻尼比,耗能效应较为明显。
From the point of view of anti-collapse, the method of theoretical analysis and case calculation is used to design the frame girder design, the lower limit of friction coefficient and the energy dissipation of the friction bearing in the frame-shear structure of partially column- Exploring. The results show that: 1) the frame beam is more economical considering the reinforcement of the tensioning bar in the plastic hinge zone of the frame beam and adjusting the design steps; 2) the method of estimating the lower limit of the friction coefficient based on D value method is closely linked with the current code , Which is convenient for engineering staff to apply. 3) The friction bearings can provide larger additional damping ratio under medium earthquakes, and the energy dissipation effect is more obvious.