• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Romanian Journal of Transport Infrastructure >Dynamic Test of a Viaduct on the Orastie–Sibiu Highway
【24h】

Dynamic Test of a Viaduct on the Orastie–Sibiu Highway

机译：奥拉斯蒂-锡比乌公路高架桥的动态测试

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

摘要

Abstract>Dynamic testing of bridges has as target to establish their response on pulse forces between the wheels and unevenness of road surface. Generally, during the tests, real time accelerations or deformations are to be measured and which through successive processing methods lead to other data as velocities, displacements, dynamic impact factor, but also the damping ratio. In order to validate the bridge response following testing, the measured data are compared both with allowable limits existing in standards and with the results obtained using analytical or numerical models.>In Romania, the dynamic testing of bridges is recommended by the current standards, only for important bridges, erected in complex or special solutions and also for large span bridges.>The aim of this paper is to outline the results obtained from the on-site measurements during dynamic testing of a viaduct placed on the motorway A1, sector Or??tie-Sibiu. The bridge superstructure is a composite one, continuous girder on 12 spans: 40+10×60+40 m, the substructure consisting in 11 piers with lamellar elevations and variable height in the range 8.50-24m.>In the paper a finite element model is also presented which was used for time-history analyses using an impulse type load. Finally, the results obtained on the site and using the numerical model are compared and discussed.
机译：摘要 >桥梁的动态测试的目标是建立桥梁对车轮之间的脉冲力和路面不平整的响应。通常，在测试期间，应测量实时加速度或变形，并通过连续处理方法得出实时加速度或变形，从而得出其他数据，例如速度，位移，动态冲击系数以及阻尼比。为了验证测试后的桥梁响应，将测得的数据与标准中存在的允许极限以及使用分析或数值模型获得的结果进行比较。 >在罗马尼亚，建议对桥梁进行动态测试根据当前标准，仅适用于在复杂或特殊解决方案中竖立的重要桥梁，也适用于大跨度桥梁。 >本文旨在概述动态测试过程中从现场测量获得的结果放置在高速公路A1或Ortie-Sibiu区段上的高架桥。桥梁上部结构是一个复合的连续梁，跨度为12个跨度：40 + 10×60 + 40 m，下部结构由11个墩墩组成，这些墩墩具有层状高程，高度在8.50-24m之间变化。 > In本文还提出了一种有限元模型，该模型用于使用脉冲型载荷的时程分析。最后，对现场结果和数值模型进行了比较和讨论。

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