框架-剪力墙减震结构优化设计

发布时间：2018-06-20 23:36

本文选题：框架-剪力墙结构 + 减震　；参考：《中南大学学报(自然科学版)》2014年09期

【摘要】：基于基础隔震理论提出框架剪力墙减震结构优化设计方法。针对1栋17层采用消能减震措施的框架-剪力墙结构,采用2种结构分析软件,选取2条实际地震波和1条人工模拟地震波分别进行线性与非线性时程分析。研究结果表明:该方法只需将黏滞阻尼器安装在结构底部数层,且没有布置抗震墙的轴线,即可取得较好的减震效果;将底部安装阻尼器的楼层称作隔震层,当隔震层基本周期与特征周期相等时减震效果最好;但基本周期不能由框架与抗震墙的总刚度推算,取总刚度与安装阻尼器的几榀框架刚度的均值来考虑抗震墙对隔震层刚度的贡献,可取得理想效果;该方法合理可靠,优化效果明显。
[Abstract]:Based on the theory of foundation isolation, an optimal design method for frame shear wall structure is proposed. For a 17-story frame-shear wall structure with energy dissipation and damping measures, two actual seismic waves and one artificial simulated seismic wave were selected for linear and nonlinear time-history analysis using two kinds of structural analysis software. The results show that the proposed method can achieve good damping effect only by installing viscous dampers at the bottom of the structure and without the axis of the seismic wall, and the floor installed with the dampers at the bottom is called the seismic isolation layer. When the basic period of isolation layer is equal to the characteristic period, the damping effect is the best, but the basic period can not be calculated from the total stiffness of frame and seismic wall. The contribution of seismic walls to the stiffness of isolation layer can be considered by taking the mean value of total stiffness and stiffness of several frames installed with dampers into account. The method is reasonable and reliable and the optimization effect is obvious.
【作者单位】：中南林业科技大学土木工程与力学学院;悉地国际设计顾问(深圳)有限公司;
【基金】：国家自然科学基金资助项目(51178473) 湖南省教育厅科学研究青年项目(13B149)
【分类号】：TU398.2;TU352.1

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