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Automating Data Collection for Robotic Bridge Inspections
Publisher: American Society of Civil Engineers
Abstract: Regular bridge inspections are key to maintaining healthy infrastructure and to preventing unanticipated structural failures. In recent years, mobile inspection robots have been proposed as a tool to aid bridge inspections. ...
Automated Defect Quantification in Concrete Bridges Using Robotics and Deep Learning
Publisher: ASCE
Abstract: This work presents a process for automated end-to-end inspection of area defects—specifically spalls and delaminations—in RC bridges. The process uses a mobile robotic platform to collect three-dimensional (3D) spatial ...
Maximum Likelihood Estimation to Localize Leaks in Water Distribution Networks
Publisher: ASCE
Abstract: Leaks cause significant water loss in underground water distribution networks, which makes it critical that utilities quickly detect, localize, and repair them. Acoustic leak detection and localization methods using ...
Mode Shape Expansion for Lively Pedestrian Bridges through Kriging
Publisher: American Society of Civil Engineers
Abstract: This paper investigates the use of kriging as a powerful tool for mode shape interpolation in flexible pedestrian bridges. Kriging can be used to interpolate a set of sparse mode shape coordinates obtained through experimental ...
Special Issue on Load Modeling and Experimental Studies on Lively Pedestrian Bridges
Publisher: American Society of Civil Engineers
Framework for Analyzing Cast Iron Water Main Fractures due to Moisture-Induced Soil Expansion
Publisher: ASCE
Abstract: Cast iron pipe break rates in North American water distribution systems have increased significantly in the last six years (a 43% increase with respect to 2012). Of the numerous mechanisms that are responsible for these ...
Assessing the Fracture Risk of Corroded Cast-Iron Pipes in Expansive Soils
Publisher: ASCE
Abstract: It is estimated that 82% of the cast-iron pipe stock in North American water distribution systems have outlived their useful service life. Previous studies have shown that moisture-induced soil expansion is a dominant ...
3D Dense Reconstruction for Structural Defect Quantification
Publisher: ASCE
Abstract: Recent advancements in vision-based visual inspection enable the identification, localization, and quantification of damage on structures. However, existing damage quantification methods are limited to measuring one- or ...
Risk-Optimal and Equitable Retrofitting Strategy Using a Siamese Graph Neural Network for Earthquake-Induced Landslide Hazards
Publisher: American Society of Civil Engineers
Abstract: Landslides pose a severe threat to road networks, particularly in hilly terrains, often exacerbated by triggering events such as earthquakes. Hence, it is crucial to comprehensively evaluate their risk and optimize retrofits ...
On-Line Learning Failure-Tolerant Neural-Aided Controller for Earthquake Excited Structures
Publisher: American Society of Civil Engineers
Abstract: This paper presents an on-line learning failure-tolerant neural controller capable of controlling buildings subjected to severe earthquake ground motions. In the proposed scheme the neural controller aids a conventional