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Acoustic Imaging to Enhance Bridge Inspection and Bridge Repair Design

机译:声学成像,增强桥梁检查和桥梁修复设计

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In 1968, several highly publicized bridge collapses occurred, including the Silver Bridge in Mt. Pleasant, WV. The Federal Highway Administration (FHWA) bridge inspection program was mandated as a part of the Federal-Aid Highway Act as a result of these bridge failures. This act required that the National Bridge Inspection Standards (NBIS) be established to require states to identify bridge deficiencies and protect the traveling public. Various modifications to the NBIS were made over the next two decades, including the Surface Transportation and Uniform Relocation Assistance Act of 1987, which required states to perform underwater bridge inspections at intervals not to exceed 60 months.
机译:1968年,发生了几座高度公布的桥梁,包括Mt.Sponst,WV的银桥。由于这些桥梁失败,联邦公路管理局(FHWA)桥梁检查计划被任命为联邦援助公路行为的一部分。该法案要求设立国家桥梁检查标准(NBIS),以确定各国识别桥梁缺陷并保护旅游公众。在接下来的二十年内进行了对NBIS的各种修改,包括1987年的表面运输和统一的搬迁援助法,该法案以不超过60个月的间隔进行水下桥梁检查。

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