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RISBayesian Two-Phase Gamma Process Model for Damage Detection and Prognosis
Publisher: American Society of Civil Engineers
Abstract: This paper presents a data-driven approach to damage detection and prognosis in the context of structural health monitoring. One of the main issues in dealing with structural damage and degradation is its hidden stochastic ...
Results from a Full-Scale Study on the Condition Assessment of Pendulum Tuned Mass Dampers
Publisher: American Society of Civil Engineers
Performance of Pendulum Tuned Mass Dampers in Reducing the Responses of Flexible Structures
Publisher: American Society of Civil Engineers
Abstract: The primary objective of this paper is to study the dynamic responses of a flexible multiple degree-of-freedom structure coupled with the three-dimensional motions of a nonlinear pendulum tuned mass damper (PTMD). The ...
Evaluation of Design Guidelines for the Serviceability Assessment of Aluminum Pedestrian Bridges
Publisher: American Society of Civil Engineers
Abstract: Serviceability issues related to lightweight pedestrian bridges have attracted a great deal of attention in the literature since the London Millennium Bridge incident, which involved large amplitude motions during its ...
Evaluation of Design Provisions for Pedestrian Bridges Using a Structural Reliability Framework
Publisher: American Society of Civil Engineers
Abstract: The design of pedestrian bridges (PBs) is typically governed by the serviceability limit state under human-induced excitation. A comprehensive evaluation of the reliability level achieved in designing for this limit state ...
Performance of Pedestrian-Load Models through Experimental Studies on Lightweight Aluminum Bridges
Publisher: American Society of Civil Engineers
Abstract: Aluminum structures provide a high strength-to-weight ratio, are corrosion resistant, and are esthetically pleasing. Hence, their use in bridge construction has recently begun to increase, especially for pedestrian bridges. ...
GVF Computation in Tree-Type Channel Networks
Publisher: American Society of Civil Engineers
Abstract: An algorithm is presented for computing the water surface profiles in steady-state gradually varied flows in tree-type open-channel networks. The algorithm is based on the principles of (1) decomposing the channel network ...
Adaptive Compensation for Detuning in Pendulum Tuned Mass Dampers
Publisher: American Society of Civil Engineers
Abstract: Detuning, resulting from deterioration, inadvertent changes to structure properties, and design forecasting, can lead to a significant loss of performance in tuned mass dampers (TMDs). To overcome this issue, an adaptive ...
Modified Cross-Correlation Method for the Blind Identification of Structures
Publisher: American Society of Civil Engineers
Abstract: Recently, blind source separation (BSS) methods have gained significant attention in the area of signal processing. Independent component analysis (ICA) and second-order blind identification (SOBI) are two popular BSS ...
Metallurgical Factors in Forged and Machined Gear Surface Durability
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Forged and machined bevel gears have been tested to compare surface durability for the two manufacturing processes. The tests and results which showed the machined gears to have 30.6 percent ...