【摘要】 在北京饭店抗震加固改造工程中，采用了消能减振新技术。本文考虑结构弹塑性变形、普通支撑弹塑性屈曲、消能支撑非线性刚度和非线性阻尼特性，采用Ｗｉｌｓｏｎ－θ法编制了消能结构非线性分析程序；然后，利用此程序对消能支撑加固后的北京饭店西楼主体结构进行了时程分析的抗震计算和验算，并对消能支撑加固的结构体系进行了消能分析，全面地揭示了消能支撑加固的合理性和有效性．更多还原

【Abstract】 Energy dissipation technology is used to upgrade the aseismic capacity of Beijing Hotel. In this paper, nonlinear analysis program of energy dissipation structures is written with Wilson - θ method, considering the elastoplastic deformation of structure, elastoplastic buckling of steel braces, and nonlinear stiffness and nonlinear damping of JARRET energy dissipators. Then, the program is used to carry out time history analysis and energy analysis of Beijing Hotel retrofitted with JARRET energy dissipation braces. The analysis results have shown the reasonability and feasibility of the strengthening method with energy dissipation braces.更多还原