本文關鍵詞：獅子洋盾構隧道基于性能的抗震分析　出處：《西南交通大學》2014年碩士論文　論文類型：學位論文

  更多相關文章： 性能抗震 盾構隧道 梁-彈簧模型 等效剛度模型 埋深影響

【摘要】：隨著經(jīng)濟的持續(xù)發(fā)展以及城市化進程的加快,地震所造成的損失有不斷增加的趨勢,工程結構基于性能的抗震設計在此背景下受到了廣泛的關注。本文依托國家973計劃《近海重大交通工程結構全壽命抗震性能評價與設計》的子課題“近海重大交通工程結構協(xié)同設計方法”,采用資料調(diào)研、理論分析和數(shù)值模擬等研究方法,在盾構隧道基于性能的抗震分析方面做了如下工作：(1)對工程結構基于性能的抗震設計相關內(nèi)容進行總結,并在此基礎上對盾構隧道基于性能的抗震設計研究中地震設防水平,隧道地震破壞等級進行劃分,并選取相關性能指標。(2)以獅子洋盾構隧道為背景,基于梁-彈簧模型和等效剛度均質(zhì)圓環(huán)模型,采用反應位移法和動力時程法進行了橫向抗震分析,研究了不同模型、不同方法計算結果的差異性。(3)基于靜力與動力分析結果的疊加,對盾構隧道橫向的應力指標和變形指標的取值范圍進行了分析。
[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.
【學位授予單位】：西南交通大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：U452.28
，

本文編號：1427794