狮子洋盾构隧道基于性能的抗震分析

发布时间：2018-01-15 09:47

  本文关键词：狮子洋盾构隧道基于性能的抗震分析　出处：《西南交通大学》2014年硕士论文　论文类型：学位论文

  更多相关文章： 性能抗震 盾构隧道 梁-弹簧模型 等效刚度模型 埋深影响

【摘要】：随着经济的持续发展以及城市化进程的加快,地震所造成的损失有不断增加的趋势,工程结构基于性能的抗震设计在此背景下受到了广泛的关注。本文依托国家973计划《近海重大交通工程结构全寿命抗震性能评价与设计》的子课题“近海重大交通工程结构协同设计方法”,采用资料调研、理论分析和数值模拟等研究方法,在盾构隧道基于性能的抗震分析方面做了如下工作：(1)对工程结构基于性能的抗震设计相关内容进行总结,并在此基础上对盾构隧道基于性能的抗震设计研究中地震设防水平,隧道地震破坏等级进行划分,并选取相关性能指标。(2)以狮子洋盾构隧道为背景,基于梁-弹簧模型和等效刚度均质圆环模型,采用反应位移法和动力时程法进行了横向抗震分析,研究了不同模型、不同方法计算结果的差异性。(3)基于静力与动力分析结果的叠加,对盾构隧道横向的应力指标和变形指标的取值范围进行了分析。
[Abstract]:With the sustainable development of economy and the acceleration of urbanization, the losses caused by earthquake are increasing. The performance-based seismic design of engineering structures has received extensive attention in this context. This paper relies on the National 973 Plan "Assessment and Design of the whole Life Seismic performance of Offshore Major Traffic Engineering structures". Cooperative Design method of Offshore Major Traffic Engineering structure. The methods of data investigation, theoretical analysis and numerical simulation are used. In the shield tunnel performance-based seismic analysis, the following work is done: 1) summarize the related contents of performance-based seismic design of engineering structures. On this basis, the seismic fortification level and the earthquake damage grade of shield tunnel are divided in the performance-based seismic design research, and the relevant performance index is selected as the background of Lion Ocean Shield Tunnel. Based on the beam-spring model and the equivalent stiffness homogeneous ring model, the lateral seismic analysis is carried out by using the response displacement method and the dynamic time-process method, and the different models are studied. Based on the superposition of static and dynamic analysis results, the range of lateral stress index and deformation index of shield tunnel is analyzed.
【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】：U452.28
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本文编号：1427794