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RISDesign and Evaluation of Tuned Inerter-Based Dampers for the Seismic Control of MDOF Structures
Publisher: American Society of Civil Engineers
Abstract: The tuned viscous mass damper (TVMD) and tuned inerter damper (TID) are tuned inerter-based dampers (TIBDs) that can utilize amplified apparent mass and tuning effects. This study investigated the use of multiple TIBDs to ...
Unsteady Theoretical Analysis on the Wake-Induced Vibration of Suspension Bridge Hangers
Publisher: American Society of Civil Engineers
Abstract: The hangers on long-span suspension bridges are significantly prone to wind-induced vibrations due to their light mass, low frequency, and small structural damping. These vibrations are known to cause fatigue problems and ...
Simplified Nonlinear Damping Force Formula for Rotary Eddy Current Dampers and Comparative Hazard Analysis under Seismic Excitation with Fluid Viscous Dampers
Publisher: ASCE
Abstract: Ensuring the robust performance of damping devices during intense vibrations, such as seismic excitation, is crucial for maintaining structural protection. Hazard analysis serves as an effective method for evaluating the ...
Dynamic Effect of Bidirectional Crowd Behavior on Footbridges Considering Human–Structure Interaction
Publisher: American Society of Civil Engineers
Abstract: This study employed an enhanced social force model to investigate the impact of bidirectional crowd load on the vertical vibration characteristics of pedestrian bridges. The research incorporated a two-step prejudgment ...
Numerical and Experimental Investigation on Vortex-Induced Vibration Suppression of a Self-Anchored Suspension Bridge with a Central-Slotted Box Girder
Publisher: American Society of Civil Engineers
Abstract: In this study, the vortex-induced vibration (VIV) performance, mechanism, and control of a self-anchored suspension bridge with the central-slotted box girder (CSBG) under the operating wind velocity of the bridge were ...
Indicial Functions for Bridge Aeroelastic Forces and Time-Domain Flutter Analysis
Publisher: American Society of Civil Engineers
Abstract: This paper presents a detailed numerical algorithm for time-domain flutter analysis of elongated bridges, emphasizing in particular some problematic issues with regard to the application of the indicial functions involved ...
Dynamic Performance of a Slender Truss Bridge Subjected to Extreme Wind and Traffic Loads Considering 18 Flutter Derivatives
Publisher: American Society of Civil Engineers
Abstract: The aerodynamic performance of long-span bridges under extreme environmental conditions, such as under strong winds and heavy traffic, is critical for bridge design. Either free vibrational or forced vibrational tests are ...
Experimental Investigation on Quasi-Steady and Unsteady Self-Excited Aerodynamic Forces on Cable and Rivulet
Publisher: American Society of Civil Engineers
Abstract: The aerodynamic forces on the cable and rivulet are usually determined by the quasi-steady method, which cannot take signature turbulence into account. Furthermore, the oscillation of the cable and rivulet might have ...
An Explicit Solution of Modal-Damping Ratios for Higher Modes of a Cable with an External Damper
Publisher: ASCE
Abstract: Design of external dampers for stay cables requires repetitive evaluation of damping ratios for target modes of cables under various damper parameters and installation positions, and explicit formulas with high accuracy ...
Experimental Investigation on High-Mode Vortex-Induced Vibration of a Flexible Stay Cable in Smooth Flow
Publisher: ASCE
Abstract: With the increase in the main spans of cable-stayed bridges, the wind-induced vibration, especially the high-mode vortex-induced vibration (VIV) of the long stay cables has become a concern for many researchers. In this ...