SAUSAGE软件减震结构附加阻尼比的应用
发布时间:2018-07-31 10:15
【摘要】:《建筑抗震设计规范》(GB 50011—2010)规定,消能减震设计计算中,主体结构基本处于弹性工作阶段时可采用线性分析方法计算,按消能减震结构总阻尼比确定地震影响系数。其中,确定消能器的附加阻尼比是计算地震响应系数的关键。考虑到消能器附加阻尼比规范算法各项参数选取的困难,SAUSAGE软件给出了基于非线性时程分析结果的附加阻尼比规范算法,同时,也给出了基于能量的附加阻尼比算法。从实际工程出发,对比了这两种附加阻尼比计算方法的计算结果,并分析了差异原因;同时对比了两种附加阻尼比等效线性分析与非线性分析层间剪力的误差,结果表明,基于能量算法得出的附加阻尼比更符合实际;最后,探讨了地震波选取及附加阻尼比计算时刻对计算结果的影响,给出了一些工程应用的建议。
[Abstract]:The Code for Seismic Design of buildings (GB 50011-2010) stipulates that in the design and calculation of energy dissipation and seismic absorption, the linear analysis method can be used to calculate the main structure when it is basically in the elastic working stage, and the seismic influence coefficient can be determined according to the total damping ratio of the energy dissipation structure. Among them, determining the additional damping ratio of the energy dissipator is the key to calculate the seismic response coefficient. Considering the difficulty of selecting the parameters of the additional damping ratio criterion algorithm for energy dissipators, the SAUSAGE software presents an additional damping ratio gauge algorithm based on the results of nonlinear time-history analysis. At the same time, the additional damping ratio algorithm based on energy is also given. Based on the actual engineering, the calculation results of the two additional damping ratios are compared, and the reasons for the differences are analyzed, and the errors of the two additional damping ratio equivalent linear analysis and nonlinear analysis are compared, the results show that, The additional damping ratio based on the energy algorithm is more practical. Finally, the influence of the selection of seismic wave and the calculation time of the additional damping ratio on the calculation results is discussed, and some engineering application suggestions are given.
【作者单位】: 中国建筑科学研究院;广州大学广东省地震工程与应用技术重点实验室;
【分类号】:TU352.1
本文编号:2155273
[Abstract]:The Code for Seismic Design of buildings (GB 50011-2010) stipulates that in the design and calculation of energy dissipation and seismic absorption, the linear analysis method can be used to calculate the main structure when it is basically in the elastic working stage, and the seismic influence coefficient can be determined according to the total damping ratio of the energy dissipation structure. Among them, determining the additional damping ratio of the energy dissipator is the key to calculate the seismic response coefficient. Considering the difficulty of selecting the parameters of the additional damping ratio criterion algorithm for energy dissipators, the SAUSAGE software presents an additional damping ratio gauge algorithm based on the results of nonlinear time-history analysis. At the same time, the additional damping ratio algorithm based on energy is also given. Based on the actual engineering, the calculation results of the two additional damping ratios are compared, and the reasons for the differences are analyzed, and the errors of the two additional damping ratio equivalent linear analysis and nonlinear analysis are compared, the results show that, The additional damping ratio based on the energy algorithm is more practical. Finally, the influence of the selection of seismic wave and the calculation time of the additional damping ratio on the calculation results is discussed, and some engineering application suggestions are given.
【作者单位】: 中国建筑科学研究院;广州大学广东省地震工程与应用技术重点实验室;
【分类号】:TU352.1
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