某300米超高层建筑结构基于性能的抗震设计

发布时间：2018-04-01 20:32

本文选题：基于性能抗震设计　切入点：超高层建筑结构　出处：《西南交通大学》2014年硕士论文

【摘要】：随着城市的飞速发展,城市中心不断的向外扩展的同时,也在向空间上扩展。高层、超高层及其它各种复杂建筑的不断涌现出,带给结构工程师更多的难题需要去解决。传统的“三水准,两阶段”的设防思想已经不能满足涌现出来的各种新型建筑的需要。基于性能的抗震设计作为一种更合理的设计理念,更加适宜现代建筑物的抗震设防要求,引起了各国广泛的重视。本文以某300米超高层建筑为背景,重点考察结构基于性能的抗震能力,对结构的设计提出相关的设计建议。本文具体研究内容如下： (1)本文介绍研究的理论背景及研究的意义和基于性能的抗震设计的发展现状,详细介绍双子塔楼—南塔楼300米超高层建筑结构工程概况,提出结构需要达到的性能水准。 (2)研究基于性能抗震设计的目标及方法,对比分析我国《抗规》及《高规》对性能目标设定的区别。 (3)采用PKPM及MIDAS软件对多遇地震下进行反应谱分析,对构件进行常规设计,考察结构指标是否满足规范要求。 (4)采用EPDA及MIDAS软件在设防地震及罕遇地震作用下进行弹塑性时程分析,考察结构屈服机制、出铰顺序及在大震下的结构构件的破坏。 (5)根据设定的性能目标要求,验算结构构件。
[Abstract]:With the rapid development of the city, the city center continues to expand outwards, but also in space.The continuous emergence of high-rise, super-high-rise and other complex buildings brings structural engineers more difficult problems to solve.The traditional "three-level, two-stage" fortifications can no longer meet the needs of emerging new buildings.As a more reasonable design concept, performance-based seismic design is more suitable for the seismic fortification requirements of modern buildings.Taking a 300m super tall building as the background, this paper focuses on the performance-based seismic capacity of the structure, and puts forward some relevant design suggestions for the design of the structure.The contents of this paper are as follows:In this paper, the theoretical background and significance of the research and the development of performance-based seismic design are introduced in detail. The general situation of the structural engineering of the 300m super-tall building with the Shuangzi Tower-South Tower is introduced in detail, and the performance level of the structure is put forward.2) the aim and method of performance-based seismic design are studied, and the difference of performance target setting between "anti-gauge" and "high gauge" in China is compared and analyzed.In this paper, PKPM and MIDAS software are used to analyze the response spectrum of the components under frequent earthquakes, and the conventional design of the components is carried out to investigate whether the structural indexes meet the requirements of the specifications.(4) Elastoplastic time-history analysis is carried out by using EPDA and MIDAS software under earthquake fortification and rare earthquake. The yield mechanism, hinge sequence and damage of structural members under strong earthquake are investigated.5) checking the structural components according to the set performance objectives.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU973.31

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