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RISCalculating the Eigenfrequency of Rotating Acoustic Annulus Inside Labyrinth Seals of Turbomachines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This brief note describes a method for calculating the eigenfrequencies of a rotating acoustic air column inside labyrinth seals in turbomachinery. The method is applied to nonrotating air columns ...
Smart Structures in Engineering Education
Publisher: American Society of Civil Engineers
Abstract: As technologies evolve, academia must follow suit to best use these technological strides to advance structures for better reliability and overall safety. One such advancement is subsumed under the title “smart structures,” ...
Adaptive Reliability Analysis of Reinforced Concrete Bridges Subject to Seismic Loading Using Nondestructive Testing
Publisher: American Society of Civil Engineers
Abstract: Seismic fragility reflects the reliability of a structure to withstand future seismic demands. It is defined as the conditional probability that a structural demand attains or exceeds a specified capacity level for given ...
Tension Stiffening in Prestressed Concrete Beams Using Moment-Curvature Relationship
Publisher: American Society of Civil Engineers
Abstract: Tension stiffening phenomenon plays a vital role in serviceability of nonprestressed reinforced concrete (RC) beams as it enhances the postcracking flexural stiffness leading to a smaller deflection, accordingly. However, ...
Probabilistic Capacity Models and Fragility Estimates for Reinforced Concrete Columns Incorporating NDT Data
Publisher: American Society of Civil Engineers
Abstract: Knowing the ability of reinforced concrete (RC) bridges to withstand future seismic demands during their life-cycle can help bridge owners make rational decisions regarding optimal allocation of resources for maintenance, ...
Control of a Seismically Excited Benchmark Building Using Linear Matrix Inequality-Based Semiactive Nonlinear Fuzzy Control
Publisher: American Society of Civil Engineers
Abstract: This paper investigates the behavior of a seismically excited benchmark building employing magnetorheological dampers operated by a model-based fuzzy logic controller (MBFLC) formulated in terms of linear matrix inequalities ...
Probabilistic Seismic Demand Models and Fragility Estimates for Reinforced Concrete Highway Bridges with One Single-Column Bent
Publisher: American Society of Civil Engineers
Abstract: In performance-based seismic design, general and practical seismic demand models of structures are essential. This paper proposes a general methodology to construct probabilistic demand models for reinforced concrete (RC) ...
Comparative Experimental Performance of Bridge Deck Slabs with AFRP and Steel Precast Panels
Publisher: American Society of Civil Engineers
Abstract: Full-depth precast concrete panels expedite the construction process, enhance the safety and quality controls, and reduce the on-site labor requirements for bridge deck slab applications. However, corrosion-induced ...
FRP Slab Capacity Using Yield Line Theory
Publisher: American Society of Civil Engineers
Abstract: Fiber reinforced polymer (FRP) bars have been increasingly used in bridge deck slabs over the last decades to overcome corrosion issues. However, there is still a critical need for a rational method to analyze the load ...