文档介绍：摘要 I 论文题目:复杂地基进水塔结构地震响应研究学科名称:水工结构工程作者姓名:贾隆飞签名: 指导教师:刘云贺教授签名: 摘要作为一种重要的水工建筑物,进水塔的安全稳定性一直是设计研究人员关心的重点, 众所周知,我国是一个地震多发的国家,所以,进水塔的地震响应分析就显得比较重要, 尤其是在具有断层,裂隙等复杂地基情况下的进水塔结构的动力安全稳定性更应该引起足够的重视。本文重点进行了复杂地基条件下进水塔结构的地震响应分析研究,采用了振型分解反应谱法和动力时程分析法对考虑了复杂地基情况的进水塔结构和未考虑断层情况的进水塔结构进行了地震响应分析对比研究。首先,对进水塔结构进行线性动力分析,通过算例的地质资料和水工抗震设计规范得到计算所需的设计反应谱,将其分别输入到复杂地基情况的进水塔结构和未考虑断层情况的进水塔结构的有限元模型中,得到计算结果。通过应力,位移的计算结果对比,可以看出在设计地震作用下,考虑复杂地基情况下进水塔结构的应力和位移始终略大于未考虑断层的进水塔结构。当考虑到结构非线性影响时,动力时程分析法考虑了持时的因素,进而得到整个过程的地震响应情况,本文将顺水向、横河向和竖直向的拟合人工波输入到复杂地基情况下的进水塔结构和未考虑断层情况的进水塔结构的有限元模型中,得到应力、位移的计算结果。通过对比两种情况下进水塔结构塔顶关键点位移情况,相同位置不同高度关键点的位移情况以及塔体和地基接触的应力集中的关键点的应力情况,得出考虑复杂地基情况下和未考虑断层情况下进水塔结构在地震作用下关键点的时程曲线变化趋势趋于一致,但考虑复杂地基情况下进水塔模型比未考虑断层时更加敏感。所以,应力、位移状况始终略大于无接触模型。综合上述两种方法的计算结果,可以得出,在考虑复杂地基情况下,断层、裂隙等不连续介质对进水塔结构的地震响应分析有明显的影响。关键词: 进水塔地震断层阵型分解反应谱法时程分析法西安理工大学硕士学位论文 II Title :S eismic Response Analysis of Intake Tower Structure with C omplex Foundation Major : Hydraulic Structure Engineering Name : Longfei Jia Signature: Supervisor : Prof. Yunhe Liu Signature: Abstract As an important hydraulic building, the key point is the safe ty and stab il ityof the intake tower. It is well known that our country is in the area where earthquakes are mon occurrence, so the seismic response analysis of intake tower es even more important. E specially when the foundation of intake tower plex, faulting or cracking , the dynamic safety and stability of intake tower should be given more attention. Th e focus of this paper is the seismic response analysis of intake tower in the case plex foundation. Ac cording to the shaking type table theory of position reaction and dynamic time history analysis method , this paper gives parative study of seismic response analysis, plex foundation of intake tower and non-considering fault foundation of intake tower. F irst , the linear dynamic analysis of intake tower: by means of numeric example of geological data and the code for design of aseismic of hydraulic structures , we will get a design response spectru