钢筋混凝土核心筒基于位移的抗震设计方法研究

发布时间：2018-03-04 15:27

本文选题：混凝土核心筒　切入点：基于位移的抗震设计方法　出处：《应用基础与工程科学学报》2014年02期 　论文类型：期刊论文

【摘要】：对于较重要的建筑结构,在基于性能抗震设计过程中,需要同时验算结构的抗震承载力和位移反应是否满足规范规定的限值.混凝土核心筒是我国超高层建筑中应用最为广泛的抗侧力单元,在承载力、刚度和延性方面均需进行详细的设计以满足更高的抗震要求.利用加速度反应谱和能力谱的基本原理,通过引入损伤指标及能力设计方法,本文提出一种混凝土核心筒基于位移的抗震设计方法,该方法可实现对目标位移和加速度(力)的双重控制,对结构进行更为合理的抗震设计.只要给定结构目标位移和目标加速度,即可利用该基于位移的方法进行抗震设计计算,得到混凝土核心筒在任一地震作用水平下的承载力和位移,同时,引入能力设计方法进行定量的构件构造措施设计,以保证构件在大震作用下具有足够的塑性变形能力.
[Abstract]:For more important building structures, in the process of performance-based seismic design, It is necessary to check whether the aseismic bearing capacity and displacement response of the structure meet the limit value stipulated in the code. The concrete core tube is the most widely used lateral force resisting element in the super high-rise building in China, and it is used in the bearing capacity. Both stiffness and ductility need to be designed in detail to meet higher seismic requirements. Using the basic principles of acceleration response spectrum and capability spectrum, the damage index and capability design method are introduced. In this paper, a displacement-based seismic design method for concrete core tube is presented. This method can realize dual control of target displacement and acceleration (force). As long as the displacement and acceleration of the structure are given, the displacement-based method can be used to calculate the aseismic design. The bearing capacity and displacement of concrete core tube under any earthquake action level are obtained. At the same time, the capacity design method is introduced to design the quantitative component construction measures to ensure that the member has enough plastic deformation ability under the action of strong earthquake.
【作者单位】：华侨大学土木工程学院;福建省结构工程与防灾重点实验室;
【基金】：国家自然科学基金(51308236;51378228) 教育部高等学校博士学科点专项科研基金(20133501120003;20123501110002)
【分类号】：TU973.31

【参考文献】