高烈度区工字型平面高层住宅剪力墙结构性能化抗震设计的研究

发布时间：2018-03-15 21:01

本文选题：高烈度区　切入点：高层住宅楼　出处：《海南大学》2015年硕士论文　论文类型：学位论文

【摘要】：随着城市的快速发展,土地资源日益宝贵,促进高层建筑广泛使用。另外,高层建筑体型日趋复杂,给结构设计增加了一定的难度。如我国华南地区高层住宅楼比较流行采用工字型建筑平面形状,可能造成细腰、扭转不规则等问题。尤其在高抗震设防烈度地区,此类高层建筑结构的抗震设计难度更大。基于性能的结构抗震设计是目前国际上先进的抗震设计方法,其特点是使抗震设计从宏观定性的目标向具体量化的多重目标过渡,业主和设计者可选择所需的性能目标,有利于针对不同抗震设防要求、场地条件及建筑的重要性采用不同的性能目标和抗震措施。我国目前要求复杂的高层建筑或超高超限的高层建筑结构的抗震设计中采用性能化设计。本文选取海南岛北部海府地区的若干个工字型平面高层住宅楼作为研究对象。首先通过对抗侧力结构方案的提炼、简化及比选,获得典型主体结构分析模型；然后借助YJK、ETABS、PUSHEPDA等结构分析软件,采用基于性能的抗震设计方法,对所选定的典型分析模型之结构抗震性能进行了分析及研究。主要开展了以下工作： (1)以抗侧刚度和抗扭刚度为控制目标,研究了工字型平面剪力墙结构平面不同部位墙肢对结构抗震性能的影响,得到各片剪力墙墙肢对整体结构抗震性能的贡献比例,归纳出剪力墙布置对结构抗震性能影响的规律； (2)借助于实际工程应用,详细解析了工字型平面剪力墙结构基于性能的抗震设计方法的基本步骤、操作流程以及难点问题； (3)讨论了目前高烈度设防区剪力墙结构抗震设计时中震作用下墙肢拉应力控制这一热点问题。详细分析了墙肢受拉基本概念,并介绍了简便的验算方法和有针对性的处理措施。
[Abstract]:With the rapid development of cities, land resources are becoming increasingly valuable, promoting the widespread use of high-rise buildings. In addition, high-rise buildings are becoming increasingly complex. It has increased some difficulties in structural design. For example, the high rise residential buildings in South China are more popular in the shape of I-shaped buildings, which may cause problems such as thin waist, irregular torsion, etc., especially in areas with high seismic fortification intensity. The seismic design of this kind of tall building structure is more difficult. The performance-based seismic design of structures is an advanced seismic design method in the world at present. Its characteristic is to make the seismic design transition from the macroscopic qualitative objective to the specific quantitative multi-objective, and the owner and the designer can choose the desired performance objectives. Favorable to different seismic fortification requirements, The site conditions and the importance of buildings adopt different performance objectives and seismic measures. At present, performance-based design is used in the seismic design of complex high-rise buildings or high-rise buildings with ultra-high limit. In this paper, a number of I-shaped high-rise residential buildings in Haifu area of northern Hainan Island are selected as the research objects. Firstly, through refining, simplifying and comparing the schemes of counter-lateral force structure, a typical main body structure analysis model is obtained. Then, with the help of the structural analysis software such as YJKCU ETABSS-PUSHEPDA and using the performance-based seismic design method, the aseismic performance of the selected typical analysis model is analyzed and studied. The main work is as follows:. 1) taking lateral stiffness and torsional stiffness as control targets, the effects of different parts of I-shaped plane shear wall structure on the seismic performance of the structure are studied, and the contribution ratio of each piece of shear wall limb to the seismic performance of the whole structure is obtained. The influence of shear wall arrangement on the seismic behavior of the structure is summarized. (2) with the aid of practical engineering application, the basic steps, operation flow and difficult problems of performance-based seismic design method for I-shaped plane shear wall structures are analyzed in detail. This paper discusses the hot issue of the tension stress control of shear wall structure under the action of moderate earthquake in the seismic design of shear wall structure in high intensity fortification area at present. The basic concept of tensile stress on the wall limb is analyzed in detail, and the simple checking calculation method and the corresponding treatment measures are introduced.
【学位授予单位】：海南大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU973.16;TU973.31

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