• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Structures Congress >Evaluation and Retrofit of the Austin Congress Avenue Bridge for LRV
【24h】

Evaluation and Retrofit of the Austin Congress Avenue Bridge for LRV

机译：LRV奥斯汀国会大道桥梁的评价与改造

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A preliminary structural evaluation of the historic Ann W. Richards Congress Avenue Bridge in Austin, Texas was conducted to determine its viability to carry a combination of existing roadway and pedestrian traffic with proposed light rail vehicles (LRV). This article describes the analysis process and findings developed in the preliminary phase of the Austin Urban Rail Advanced Conceptual Engineering Study. The goal of this phase was to perform a high level fatal flaw analysis of the bridge based on information collected from available documentation and considering both center-running and side-running track configurations. The age of the bridge necessitated a historical investigation to recover original drawings, construction records, geotechnical information, etc., and document several modifications made since the bridge's original construction. Additionally, recent inspection reports of the bridge were collected and confirmed with a site visit. Review of a number of Light Rail Transit (LRT) structural design criteria documents developed by several transportation agencies around the U.S. led to development of a set of structural design criteria used for evaluating the bridge structure and retrofit options. Results of simplified analyses of the superstructure and substructure showed that the bridge's box beams would require strengthening in order to accommodate LRV loads in addition to current loads. Substructure analyses indicated that the bent caps seem to have adequate strength while the piers show significant reserve capacity but that the foundation may need to be strengthened. Development of preliminary retrofit schemes was based on analysis results, bearing in mind the presence of a bat colony living in the bridge. Estimated approximate costs established an order-of-magnitude comparative value to help the owner decide if a more detailed study is worth considering.
机译：德克萨斯州奥斯汀历史悠久的Ann W. Richards Congent Avenue Bridge的初步结构评价，以确定其与提出的轻轨车辆（LRV）携带现有道路和行人交通组合的可行性。本文介绍了奥斯汀城市轨道先进概念工程研究的初步阶段开发的分析过程和调查结果。本阶段的目标是基于从可用文档中收集的信息，并考虑中心运行和侧行轨道配置，对桥梁进行高水平致命缺陷分析。该桥的年龄需要历史调查来恢复原始图纸，施工记录，岩土信息等，并根据桥梁原始建筑以来的几种修改。此外，收集了最近的桥梁检查报告并通过现场访问确认。审查由美国周围的几个运输机构开发的许多轻轨过境（LRT）结构设计标准文件导致了一系列结构设计标准，用于评估桥梁结构和改造选项。超结构和子结构的简化分析结果表明，除了电流负载之外，桥的箱梁梁还需要加强，以适应LRV载荷。子结构分析表明，弯曲帽似乎具有足够的强度，而码头显示出大量储备容量，但可能需要加强基础。初步改造方案的发展是基于分析结果，记住蝙蝠殖民地的存在落在桥上。估计的近似费用建立了一个级别的比较价值，以帮助所有者决定是否值得考虑更详细的研究。

著录项

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