Research on bridge structure SAM based on real-time monitoring
نویسندگان
چکیده
Abstract To study the problems of frequent omissions and false alarms in early warning system due to defects safety assessment method (SAM) existing bridge health monitoring systems (BHMS). In this paper, current evaluation methods BHMS are deeply studied through fuzzy comprehensive derive a new type SAM based on vector. At same time, combined with concept membership function, result vector is accurately quantified, specific for evaluating level structure obtained. Combining data three detection 3 × 30 m continuous girder bridge, simply supported beam steel–concrete composite Beijing Metro Line 5 project, daily monthly results were verified. The research show that structural proposed paper can real-time evaluate status small medium-span structures. However, bridges bridges, it necessary make judgments actual conditions bridges. Moreover, also consolidate theoretical foundation establishing data, model. promote further development system.
منابع مشابه
Time-Series and Frequency-Spectrum Correlation Analysis of Bridge Performance Based on a Real-Time Strain Monitoring System
Monitoring bridges’ performance is a vital task to ensure their safety and to plan their maintenance operations. Therefore, it is very important to monitor bridges’ behavior and to analyze their measured data. In this study, the time-series and frequency-spectrum correlation analyses are used to study the performance of Fu-Sui Bridge under harsh environmental and traffic loads. It investigates ...
متن کاملResearch on the Railroad Bridge Monitoring Platform Based on the Internet of Things
As railroad bridge is one of the most important infrastructures of railway, the safety of bridge has a direct effect on railway operation efficiency and safety. In this paper, we propose a distributed railway bridge monitoring platform based on the Internet of Things (IOT) to monitoring the state of bridge safety. We made detailed research on the sensor nodes deployment, sensing data updating a...
متن کاملmortality forecasting based on lee-carter model
over the past decades a number of approaches have been applied for forecasting mortality. in 1992, a new method for long-run forecast of the level and age pattern of mortality was published by lee and carter. this method was welcomed by many authors so it was extended through a wider class of generalized, parametric and nonlinear model. this model represents one of the most influential recent d...
15 صفحه اولSteering of real-time systems based on monitoring and checking
We present an approach to enhance fault-tolerance of real-time systems through steering. Steering means external alteration of the system's behavior in response to a deviation from requirements. The steering technique is embedded into a framework of monitoring and checking (MaC). MaC allows the users to perform runtime analysis of the current execution of a system with respect to formally speci...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Civil Structural Health Monitoring
سال: 2022
ISSN: ['2190-5452', '2190-5479']
DOI: https://doi.org/10.1007/s13349-022-00571-7