Sudden Unexpected Infant Death & Sudden Infant Death Syndrome
Problem – Sudden failures of civil infrastructure systems Approaches to the problem –
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題 Problem – Sudden failures of civil infrastructure systems Approaches to the problem – In addition to the I-35W bridge, there are approximately 75,000 other U.S. bridges also rated as “structurally deficient” in 2007. Structurally deficient: “The structure is deemed to have met minimum tolerable limits to be left in place as it is.” 題 Are these 75,000 structurally deficient bridges safe? How do we know? 題 We need reliable (inspection results are creditable), efficient (inspection can be accomplished in time) condition assessment technologies for this challenging problem. 題題： 題題： 題題： Tzu-Yang Yu Assistant Professor, Ph.D. Synthetic Aperture Radar Imaging for the Distant Inspection of Multi-layer GFRP-concrete Structures October 26 th , 2011 題題題題題 題、 Condition assessment of structures and Strengthening and repair of structures ： Strengthening and repair of structures ： 題、 Review of NDT in Civil Eng 題題 Tzu-Yang Yu Assistant Professor, Ph.D. 題題 題題題題題題題題 Introduction ： Method and Features ： Current distant NDT methods provide only the surface profile of structures, while some near- field NDT methods can conduct in-depth inspection of structures. Significant impacts – EX: I- 35 Highway Bridge Collapse, Minneapolis, MN (6:05pm, Wed., Aug. 1, 2007) ： Condition assessment of structures ：
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題. Synthetic Aperture Radar Imaging for the Distant Inspection of Multi-layer GFRP-concrete Structures. 題目：. 講者：. Tzu-Yang Yu Assistant Professor, Ph.D. 時地：. October 26 th , 2011 土木館五樓. - PowerPoint PPT Presentation
Transcript of Problem – Sudden failures of civil infrastructure systems Approaches to the problem –
題
Problem – Sudden failures of civil infrastructure systems
Approaches to the problem –
In addition to the I-35W bridge, there are approximately 75,000 other U.S. bridges also rated as “structurally deficient” in 2007.Structurally deficient: “The structure is deemed to have
met minimum tolerable limits to be left in place as it is.”
Are these 75,000 structurally deficient bridges safe? How do we know?
We need reliable (inspection results are creditable), efficient (inspection can be accomplished in time) condition assessment technologies for this challenging problem.
題目：講者：時地：
Tzu-Yang Yu Assistant Professor, Ph.D.
Synthetic Aperture Radar Imaging for the Distant Inspection of Multi-layer GFRP-concrete Structures
October 26th, 2011 土木館五樓
貳、 Condition assessment of structures and Strengthening and repair of structures ：
Strengthening and repair of structures ：
壹、 Review of NDT in Civil Eng
感謝 Tzu-Yang Yu Assistant Professor, Ph.D.蒞臨 師生謹致誠摯謝意
Introduction：
Method and Features ：
Current distant NDT methods provide only the surface profile of structures, while some near-field NDT methods can conduct in-depth inspection of structures.
Significant impacts – EX: I-35 Highway Bridge Collapse, Minneapolis, MN (6:05pm, Wed., Aug. 1, 2007) ：
Condition assessment of structures ：
