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首页> 外文会议>IMAC-XXI: a conference amp; exposition on structural dynamics >MODAL TESTING OF THE PALISADE TUNNEL
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MODAL TESTING OF THE PALISADE TUNNEL

机译：栅栏式隧道的模态测试

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摘要

A surface tunnel was studied for the potential of assessingrnits modal behaviors as a possible condition assessmentrntechnique. The tunnel is a Portland cement concreternstructure lined with corrugated metal sheets. The one-way,rnsingle-lane tunnel has a 80-degree turn. A finite elementrnmodel was first constructed for the tunnel, and normal modernshape analysis was conducted to study the theoreticalrnmodal behavior of the tunnel. As a first approximation, onlyrnsimplified boundary conditions were used. Nornconsiderations of complex soil-structure interactions werernincluded. The tunnel was then tested using impactrnexcitation and ambient excitation to validate the finiternelement results. This research is part of a Great CitiesrnUniversities (GCU) Coalition transportation researchrninitiative to study the potential of using modal testing as arnNondestructive Testing (NDT) technique for tunnel structurernevaluation for inter-modal transportation systems.
机译：研究了一种地表隧道，以评估其模态行为作为一种可能的条件评估技术的潜力。该隧道是衬有波纹金属板的波特兰水泥混凝土结构。单向单车道隧道具有80度的转弯。首先为该隧道建立了一个有限元模型，并进行了正常的现代形状分析以研究该隧道的理论模态行为。作为第一近似，仅使用简化的边界条件。包括了复杂的土壤-结构相互作用的考虑因素。然后使用冲击激励和环境激励对隧道进行测试，以验证有限元结果。这项研究是美国大城市大学（GCU）联盟运输研究的一部分，该研究旨在研究使用模态测试作为无损检测技术（NDT）对联运系统进行隧道结构评估的潜力。

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  • 来源
  • 会议地点 Kissimmee FL(US)
  • 作者

    Shen-En Chen; Norbert Delatte; Nitin Maini; Dana Helton; Charles Robinson; Adriana Dunn; And Richard Hawkins;

  • 作者单位

    Dept. of Civil Environmental Engineering, University of Alabama at Birmingham, Birmingham, AL 35294-4440;

    Dept. of Civil Environmental Engineering, University of Alabama at Birmingham, Birmingham, AL 35294-4440;

    Dept. of Civil Environmental Engineering, University of Alabama at Birmingham, Birmingham, AL 35294-4440;

    Dept. of Civil Environmental Engineering, University of Alabama at Birmingham, Birmingham, AL 35294-4440;

    Dept. of Civil Environmental Engineering, University of Alabama at Birmingham, Birmingham, AL 35294-4440;

    Dept. of Civil Environmental Engineering, University of Alabama at Birmingham, Birmingham, AL 35294-4440;

    Dept. of Civil Environmental Engineering, University of Alabama at Birmingham, Birmingham, AL 35294-4440;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 结构力学;结构力学;
  • 关键词

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