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RISStructural Identification Using Computer Vision–Based Bridge Health Monitoring
Publisher: American Society of Civil Engineers
Abstract: This paper presents a new structural identification (St-Id) framework along with a damage indicator, displacement unit influence surface using computer vision–based measurements for bridge health monitoring. Unit influence ...
Ambient Vibration Data Analysis for Structural Identification and Global Condition Assessment
Publisher: American Society of Civil Engineers
Abstract: System identification is an area which deals with developing mathematical models to characterize the input-output behavior of an unknown system by means of experimental data. Structural health monitoring (SHM) provides the ...
Damage Assessment with Ambient Vibration Data Using a Novel Time Series Analysis Methodology
Publisher: American Society of Civil Engineers
Abstract: In this study, a novel approach using a modified time series analysis methodology is used to detect and locate structural changes by using ambient vibration data. In addition, it is shown that the level of the damage feature ...
Condition and Damage Assessment: Issues and Some Promising Indices
Publisher: American Society of Civil Engineers
Abstract: Critical issues related to damage and condition assessment are discussed. The distinction between global and local state properties, linearized and nonlinear condition indices and experimental constraints are discussed ...
Image-Based Monitoring of Open Gears of Movable Bridges for Condition Assessment and Maintenance Decision Making
Publisher: American Society of Civil Engineers
Abstract: Movable bridges are unique structures due to the complex interaction between their structural, mechanical, and electrical systems with an intricate interrelation creating several challenges related to operation and ...
Load Rating and Reliability Analysis of an Aerial Guideway Structure for Condition Assessment
Publisher: American Society of Civil Engineers
Abstract: Aerial guideways are elegant transportation structures that are seen at airports, theme parks, and crowded urban areas. The guideways generally consist of continuous, prestressed concrete beam spans, precast concrete ...
Hybrid Sensor-Camera Monitoring for Damage Detection: Case Study of a Real Bridge
Publisher: American Society of Civil Engineers
Abstract: This article presents the real-world implementation of a novel monitoring system in which video images and conventional sensor network data are simultaneously analyzed to detect possible damage on a movable bridge. The ...
Computer Vision–Based Human Comfort Assessment of Stadiums
Publisher: ASCE
Abstract: In this article, a new measurement method for human comfort assessment levels for stadiums is proposed and demonstrated. The method is based on a specific computer vision and image processing algorithm called optical flow. ...
Investigating the Increase in Load Rating and Reliability of a Prestressed Concrete Bridge When Utilizing Field-Derived Distribution and Impact Factors
Publisher: ASCE
Abstract: When the load rating of a bridge is less than 1.0 for AASHTO HL-93 live load and state-specific legal trucks, the bridge is posted. Posting a bridge causes an inconvenience to the public and may result in trucks taking ...
Considerations and Issues in the Utilization of Infrared Thermography for Concrete Bridge Inspection at Normal Driving Speeds
Publisher: American Society of Civil Engineers
Abstract: The main objective of this study is to comprehensively evaluate the utilization of infrared thermography (IRT) considering different technologies, critical environmental parameters, and uncertainties for bridge deck ...