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Near-Real-Time Identification of Seismic Damage Using Unsupervised Deep Neural Network
Publisher: ASCE
Abstract: Prompt identification of structural damage is essential for effective postdisaster responses. To this end, this paper proposes a deep neural network (DNN)–based framework to identify seismic damage based on structural ...
Time-Dependent Reliability Assessment and Updating of Post-tensioned Concrete Box Girder Bridges Considering Traffic Environment and Corrosion
Publisher: ASCE
Abstract: In the reliability assessment of a bridge in operation with regards to its ultimate limit state, it should be noted that the strengths of members and effects of traffic load vary continuously over its lifespan due to the ...
Reliability-Based Design Optimization Using Quantile Surrogates by Adaptive Gaussian Process
Publisher: ASCE
Abstract: It is of great significance to incorporate various uncertainties into the design optimization of structures and other engineering systems. Many reliability-based design optimization (RBDO) methods have been developed, but ...
Neural Network–Augmented Physics Models Using Modal Truncation for Dynamic MDOF Systems under Response-Dependent Forces
Publisher: American Society of Civil Engineers
Abstract: Accurate prediction of the dynamic response of a structure is crucial for its system identification, reliability analysis, and health monitoring. However, uncertainties in physics-based models and parameters may cause a ...
A Design Live Load Model for Long-Span Bridges Based on Traffic Data and Simulations
Publisher: ASCE
Abstract: Current design codes for long-span bridges rely on the conservative live load models developed based on the assumed severe traffic congestion scenarios. To properly consider the site-specific traffic environment in designs ...
System Identification of Spatial Distribution of Structural Parameters Using Modified Transitional Markov Chain Monte Carlo Method
Publisher: American Society of Civil Engineers
Abstract: Uncertain changes in spatial distribution of structural parameters, caused by deterioration or damage, may weaken the structure and result in unexpected losses of properties or casualties. In recent decades, to identify ...
System Reliability Updating of Fatigue-Induced Sequential Failures
Publisher: American Society of Civil Engineers
Abstract: Many structural systems are subjected to the risk of fatigue-induced failures caused by repeated loading during their service. For effective management of such risk, it is essential to estimate the reliability of a structure ...
Bounds on System Reliability by Linear Programming
Publisher: American Society of Civil Engineers
Abstract: Bounds on system probability in terms of marginal or joint component probabilities are of interest when exact solutions cannot be obtained. Currently, bounding formulas employing unicomponent probabilities are available ...
Closure to “Generalized Bouc-Wen Model for Highly Asymmetric Hysteresis” by Junho Song and Armen Der Kiureghian
Publisher: American Society of Civil Engineers
Closure to “Bounds on System Reliability by Linear Programming” by Junho Song and Armen Der Kiureghian
Publisher: American Society of Civil Engineers