• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >Assessment of parapet loads distributed to prestressed concrete I-beams in simple span bridges.
【24h】

Assessment of parapet loads distributed to prestressed concrete I-beams in simple span bridges.

机译：评估在简单跨度桥梁中分配给预应力混凝土工字梁的护墙载荷。

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In engineering practice, there is no clear reference or guidance for the computation of the superimposed parapet load distributed to each girder of a bridge. The purpose of this study is to determine the distribution of the parapet wall weight load to prestressed concrete girders for simple span bridges. The focus is on the reactions at the bearings of simple span bridges. It was found in this study that the exterior girder takes about fifty percent of the parapet load distribution in a case with five girders. This study presents background, introduction, data, and results pertaining to this research. Care is made to fully explain all procedures and terminology for complete understanding of the topic.This study implements the finite element analysis program NISA to test simple span bridge models and collect the data of the reactions at the bearings of these models. Multiple models are created that use AASHTO Types III prestressed concrete girders. The lengths of the girders as well as the cantilever span lengths of the deck will vary.The focus of this research is to determine the distribution of the parapet weight loading on the prestressed concrete girders of simple span bridges. The results are provided in table form showing the reactions on the bridge models. The ratios of the load distribution of the exterior beams to the load distribution of the interior beams are also shown. This data provides a reference for the load distribution of the parapet wall weight to the girders.
机译：在工程实践中，没有明确的参考或指导来计算分配给桥梁每个主梁的叠加护墙载荷。这项研究的目的是确定用于简单跨径桥梁的预应力混凝土大梁的护墙重量的分布。重点是简单跨度桥的支座上的反作用力。在这项研究中发现，在有五个大梁的情况下，外部大梁承担了栏杆荷载分布的大约百分之五十。这项研究提出了与这项研究有关的背景，简介，数据和结果。为了全面理解该主题，我们会认真解释所有过程和术语。本研究实施了有限元分析程序NISA，以测试简单的跨度桥梁模型并收集这些模型方位处的反应数据。使用AASHTO III型预应力混凝土梁创建了多个模型。箱梁的长度以及桥面的悬臂跨度会有所不同。本研究的重点是确定在简单跨度桥梁的预应力混凝土箱梁上的栏杆重量载荷分布。结果以表格形式提供，显示了对桥模型的反应。还显示了外梁的载荷分布与内梁的载荷分布之比。该数据为护墙重量向大梁的载荷分布提供了参考。

著录项

  • 作者

    Siegert, Amelia L.;

  • 作者单位

    Southern Illinois University at Carbondale.;

  • 授予单位 Southern Illinois University at Carbondale.;
  • 学科 Engineering Civil.
  • 学位 M.S.
  • 年度 2009
  • 页码 50 p.
  • 总页数 50
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号