Condition assessment of concrete bridge decks using a fully autonomous robotic NDE platform
Condition assessment of concrete bridge decks using a fully autonomous robotic NDE platform
复制标题
使用完全自主的机器人 NDE 平台对混凝土桥面进行状态评估
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
H. Ghasemi
中科院分区：
文献类型：
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作者：
N. Gucunski;A. Maher;H. Ghasemi
混凝土桥面板的无损检测主要集中在混凝土的腐蚀、分层和质量等方面。各种NDE技术可用于此目的。为了加快数据收集和分析过程，开发了一个完全自主的机器人系统，以互补的方式实现了四种NDE技术和数字成像。无损检测技术包括冲击回波（IE）、探地雷达（GPR）、超声表面波（USW）和电阻率（ER）。IE用于分层的检测和表征。探地雷达可用于识别桥面可能出现损坏和高腐蚀性环境的区域，绘制所有金属物体的地图，并测量混凝土保护层。USW通过测量混凝土弹性模量提供有关混凝土质量的信息。最后，ER能够评估腐蚀性环境的可能性。使用机器人平台应用所列的无损检测技术，可以以比使用一组技术人员进行手动收集高得多的生产率进行数据收集，并且成本显著降低。这两个手动和机器人的无损检测技术的应用进行了讨论。
Condition assessment of concrete bridge decks using nondestructive evaluation (NDE) technologies concentrates on the assessment of corrosion, delamination and concrete quality. Various NDE technologies can be used for this purpose. To expedite the data collection and analysis process, a fully autonomous robotic system was developed that in a complementary way implements four NDE technologies and digital imaging. The NDE technologies include impact echo (IE), ground penetrating radar (GPR), ultrasonic surface waves (USW) and electrical resistivity (ER). The IE is used in detection and characterization of delamination. The GPR is used to identify bridge deck areas with likely deterioration and highly corrosive environment, to map all metallic objects and to measure the concrete cover. The USW provides information about the concrete quality through a measurement of concrete elastic modulus. Finally, the ER enables the assessment of a potential for corrosive environment. The application of the listed NDE technologies using a robotic platform allows data collection at far higher production rates than the manual collection using a group of technicians, and at a significantly reduced cost. Both the manual and robotic applications of NDE technologies are discussed.