基于性能的某超限高层建筑抗震分析与设计

发布时间：2018-05-24 21:50

本文选题：超限高层建筑 + 基于性能抗震设计　；参考：《深圳大学》2017年硕士论文

【摘要】：各国的发展历程都伴随城市化率不断提高,人口不断向一二线城市迁移,向大都市圈集聚。高度城市化必然导致城市内建筑日益朝着超高层高容积率方向发展。超限高层和各种复杂的建筑不断涌现,给建筑结构工程师带来不断的挑战,需要有更加科学可行抗震理论去指导建筑结构抗震设计。抗震设计理论也从静力弹性理论发展到反应谱理论乃至当今的动力弹塑性理论。基于性能抗震设计理论在2000年前后,全球范围内开展了大量的研究并很快推广应用于工程抗震设计实践,目前是工程抗震设计的主流理论。基于性能抗震设计很适合我国超限高层的建筑结构设计,其理论是我国结构规范的延伸;目前我国GB50011-2010《抗规》和JGJ3-2010《高规》已经给出了基于性能抗震设计理论框架。在广泛阅读国内外文献及我国规范的前提下,本文阐述了基于性能抗震设计理论发展历程;我国传统抗震设计理论和基于性能抗震设计理论的优劣;并对我国规范进行了反思。最后本文结合某具体的工程对其进行基于性能抗震设计分析。在分析的过程中运用有限元软件SATWE以及ETABS对工程实例进行多遇地震弹性分析。运用有限元软件CSICOL在设防地震作用下验证普通竖向构件和关键构件正截面承载力不屈服,斜截面抗剪承载力弹性。运用有限元软件ABAQUS对工程实例在罕遇地震作用下进行动力弹塑性时程分析并验算薄弱层弹塑性位移角保证在大震作用下生命安全。最后通过分析结果采用抗震概念设计和抗震构造措施等策略保证工程实例实现“小震不坏,中震可修,大震不倒”的设防目标。基于性能抗震设计将结构工程师、业主和项目使用者放在了同一个决策平台,让他们根据项目特点自主选择项目抗震性能目标,这增加了设计透明度同时也有利于建筑结构新体系、新方法、新工艺、新技术发展。
[Abstract]:The development of each country is accompanied by the increasing rate of urbanization, the migration of population to the first and second tier cities, and the agglomeration to the metropolitan area. High urbanization will inevitably lead to the development of super-high-rise buildings. The continuous emergence of high-rise and complex buildings brings challenges to structural engineers and requires more scientific and feasible aseismic theory to guide seismic design of building structures. Seismic design theory has developed from static elastic theory to response spectrum theory and dynamic elastoplastic theory. The theory of performance-based aseismic design has been widely studied and applied in engineering seismic design around the year 2000. It is the mainstream theory of seismic design in engineering at present. The performance-based aseismic design is very suitable for the design of high-rise buildings in China, whose theory is an extension of the structural code of our country. At present, the theoretical framework of performance-based seismic design has been given in GB50011-2010 and JGJ3-2010. Based on the extensive reading of domestic and foreign literature and Chinese codes, this paper expounds the development course of performance-based seismic design theory, the advantages and disadvantages of traditional seismic design theory and performance-based seismic design theory in China, and reflects on the code of our country. Finally, the performance-based seismic design analysis of a specific project is carried out in this paper. In the process of analysis, the finite element software SATWE and ETABS are used to analyze the seismic elasticity of engineering examples. The finite element software CSICOL is used to verify that the normal section bearing capacity of ordinary vertical members and key members is not yielding and the shear bearing capacity of oblique sections is elastic under the action of seismic fortification. The finite element software ABAQUS is used to analyze the dynamic elastic-plastic time history of engineering examples under rare earthquake and to check and calculate the elastic-plastic displacement angle of weak layer to ensure the safety of life under the action of strong earthquake. Finally, the strategy of seismic conceptual design and seismic structural measures is adopted to ensure that the target of "small earthquake is not bad, medium earthquake is repairable, and large earthquake is not collapsed" is realized by the result of analysis. Performance-based seismic design puts structural engineers, owners and project users on the same decision-making platform, allowing them to independently select project seismic performance goals according to the characteristics of the project. This not only increases the transparency of design, but also facilitates the development of new system, new method, new technology and new technology.
【学位授予单位】：深圳大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU973.31

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