ABSTRACT

A precast concrete frame with replaceable energy-dissipating connectors (REDC) is designed as an innovative system. The REDCs are placed at the top and the bottom of the beam-ends to dissipate energy during major earthquakes. A displacement spectrum-based design method is presented, which can directly determine the target period under strong earthquakes. The results of nonlinear time-history analysis of an example structure indicate that the displacement response of the innovative structure under strong earthquakes can be estimated accurately only using elastic response spectrum, without considering additional plastic parameters such as equivalent damping or ductile factor during the design process.

摘要

带有可更换消能连接器 (REDC) 的预制混凝土框架被设计为一种创新系统。REDC 放置在梁端的顶部和底部，以在大地震期间消散能量。提出了一种基于位移谱的设计方法，可以直接确定强震作用下的目标周期。实例结构的非线性时程分析结果表明，创新结构在强震作用下的位移响应，在设计过程中无需考虑等效阻尼或延性因子等附加塑性参数，仅使用弹性响应谱即可准确估算。 .