【摘要】 该文针对偏心支撑结构存在的不足,提出一种新型的框架支撑形式——耗能器偏心支撑。该文采用1:3缩尺模型,进行了拟静力试验,并利用ANSYS有限元分析程序建立了有限元分析模型,将该新型耗能器偏心支撑结构进行了试验研究和理论分析比较。得出结论:该新型框架支撑形式不仅可以减少耗能梁段吸收的地震能量,也可以减小耗能梁段的破坏程度,从而减少震后修复工作量;并且具有很好的变形能力和足够的抗侧移能力。同时也给出了设计方法,并提出了改进措施。更多还原

【Abstract】 Considering the defect of eccentrically braced steel frames,a new braced steel frame system is suggested,which is energy dissipating eccentrically braced steel frames.The experimental data is achieved by a specimen under a cyclic loading,which is verified by nonlinear finite element analyses.Results indicate that the new system may reduce earthquake input energy and breakage of the link,reduce the repairing load of beams and floors and costs after an earthquake,and have preferable ductility and enough lateral stiffness.Meanwhile,some design and amended measures are recommended for the new type protocol.更多还原