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A comparison of one-dimensional, two-dimensional, and three-dimensional settlement analyses of the Tower of Pisa.

机译:比萨斜塔的一维,二维和三维沉降分析的比较。

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摘要

This thesis compares and evaluates settlement analyses of the Tower of Pisa by one, two, and three-dimensional computer models. The Tower of Pisa has been an important settlement case study for more than a century. The Tower settlement has been previously modeled using one-dimensional consolidation models and more recently, two and three-dimensional finite element analysis. The recent work provides a large amount of subsurface data used in these analyses. The 1D analyses underestimate the average settlement of the Tower by not accounting for shear induced deformations. In 2D, a plane strain analyses can model the Tower's tilt but the magnitude of the settlement must be calibrated for the difference between the infinite strip plane strain loading and the actual circular loading using the results of an axisymmetric analysis. The results of the 3D analyses are comparable to the findings of the calibrated 2D analysis and provide acceptable comparisons between the computed and estimated actual settlements and inclinations.
机译:本文通过一维,二维和三维计算机模型对比萨斜塔的沉降分析进行了比较和评估。一个多世纪以来,比萨斜塔一直是重要的定居案例研究。塔沉降以前使用一维合并模型进行建模,最近使用二维和三维有限元分析进行建模。最近的工作提供了在这些分析中使用的大量地下数据。一维分析通过不考虑剪切引起的变形而低估了塔的平均沉降。在2D模式下,平面应变分析可以对塔的倾斜进行建模,但是必须使用轴对称分析的结果来校正沉降的大小,以计算无穷带状平面应变载荷与实际圆形载荷之间的差异。 3D分析的结果与校准的2D分析的结果可比,并提供了在计算出的和估计的实际沉降和倾角之间可接受的比较。

著录项

  • 作者

    Klettke, Andrew J.;

  • 作者单位

    Tufts University.;

  • 授予单位 Tufts University.;
  • 学科 Engineering Civil.
  • 学位 M.S.
  • 年度 2009
  • 页码 128 p.
  • 总页数 128
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 建筑科学;
  • 关键词

  • 入库时间 2022-08-17 11:38:29

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