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Structural performance analysis of a reinforced concrete arch bridge.

机译：钢筋混凝土拱桥的结构性能分析。

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摘要

An investigation has been undertaken to study the temperature load characteristics of a three span continuous arch bridge. The bridge structure studied is the Plaza Bridge, an old reinforced concrete arch bridge which has recently been rehabilitated as part of the rehabilitation project, a monitoring system has been installed on the bridge to obtain information about the behavior and performance of the bridge. A brief description of the monitoring system is presented in the thesis. Detailed parametric studies have been conducted to find the influence of the temperature and truck loading on the performance of the bridge.; A two-dimensional analytical tool has been developed to simulate the non-linear inelastic behavior of reinforced concrete structures. A special procedure is formulated to evaluate the effect of air temperature changes on the deformation behavior of the bridge. The developed two-dimensional analytical tool is used to evaluate the exact load distribution and deformation characteristics of the bridge over the entire loading range up to the point of failure under the temperature and truck loading.; The analysis results show that the bridge behaves linearly under the maximum recorded temperature as well as the maximum design temperature in the summer as specified in the bridge design code. Under the combined loading condition of truckloads and low temperature in winter, it is found that the bridge deformations may exceed the elastic limit into the nonlinear range. Although the results show that some reinforcing steel may yield, the bridge still remains below the ultimate load carrying capacity.
机译：已经进行了研究以研究三跨连续拱桥的温度负荷特性。研究的桥梁结构是广场桥，这是一座古老的钢筋混凝土拱桥，最近已作为修复项目的一部分进行了修复，并在该桥上安装了监控系统，以获取有关该桥的性能和性能的信息。本文对监控系统进行了简要描述。已经进行了详细的参数研究，以发现温度和卡车载荷对桥梁性能的影响。已经开发出一种二维分析工具来模拟钢筋混凝土结构的非线性非弹性行为。制定了特殊程序来评估气温变化对桥梁变形行为的影响。开发的二维分析工具用于评估桥梁在整个载荷范围内直至温度和卡车载荷下的破坏点的精确载荷分布和变形特性。分析结果表明，在桥梁设计规范中规定的最高记录温度以及夏季的最高设计温度下，桥梁呈线性行为。研究发现，在冬季卡车和低温的共同加载条件下，桥梁变形可能会超出弹性极限，达到非线性范围。尽管结果表明某些钢筋可能会屈服，但桥梁仍保持在极限承载力以下。

著录项

  • 作者

    Ostovari Dailamani, Shadi.;

  • 作者单位

    Carleton University (Canada).;

  • 授予单位 Carleton University (Canada).;
  • 学科 Engineering Civil.
  • 学位 M.A.Sc.
  • 年度 2002
  • 页码 112 p.
  • 总页数 112
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 建筑科学;
  • 关键词

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