Search
Now showing items 1-10 of 10
Stay Cable Tension Estimation of Cable-Stayed Bridges Using Genetic Algorithm and Particle Swarm Optimization
Publisher: American Society of Civil Engineers
Abstract: This study presents a methodology for estimating stay cable tensions of cable-stayed bridges using genetic algorithm (GA) and particle swarm optimization (PSO). At first, a comprehensive cable model was used to represent ...
Performance Comparison of Four Fiber-Reinforced Polymer Deck Panels
Publisher: American Society of Civil Engineers
Abstract: In an effort to assess the constructability and performance of bridges with fiber-reinforced polymer (FRP) composite decks, the short-term and long-term responses of a 207 m, five-span bridge retrofitted with four different ...
Modal Contribution Coefficients in Bridge Condition Evaluation
Publisher: American Society of Civil Engineers
Abstract: Impact modal testing combined with finite element (FE) analyses is currently being used to evaluate the condition of steel bridges in the state of Ohio. Using modal testing techniques, it is relatively easy to measure the ...
Development of Static-Response-Based Objective Functions for Finite-Element Modeling of Bridges
Publisher: American Society of Civil Engineers
Abstract: The basic mechanisms and procedures of finite-element (FE) modeling and calibration are briefly presented in the context of bridge condition assessment. Different physical parameters of FE models are adjusted to simulate ...
Development of Dynamic-Response-Based Objective Functions for Finite-Element Modeling of Bridges
Publisher: American Society of Civil Engineers
Abstract: The basic mechanism and procedures of finite-element (FE) bridge modeling and calibration are briefly presented. Different physical parameters of FE models are adjusted during the calibration process. Dynamic-response-based ...
Stay Force Estimation in Cable-Stayed Bridges Using Stochastic Subspace Identification Methods
Publisher: American Society of Civil Engineers
Abstract: In this paper, a vibration-based approach for estimating the cable tension forces in cable-stayed bridges is detailed and applied to the ambient response of the Veterans’ Glass City Skyway Bridge. First, the frequency ...
Structural Identification for Condition Assessment: Experimental Arts
Publisher: American Society of Civil Engineers
Abstract: Structural identification is a powerful concept that permits rational characterizations of constructed facilities and their loading environments. Potential uses of structural identification to solve numerous problems related ...
Condition Assessment for Bridge Management
Publisher: American Society of Civil Engineers
Abstract: Integrated analytical and experimental research, conducted for exploring objective, global condition assessment and evaluation of bridge serviceability and safety, is summarized. A related terminology with definitions for ...
Close Look at Construction Issues and Performance of Four Fiber-Reinforced Polymer Composite Bridge Decks
Publisher: American Society of Civil Engineers
Abstract: Four different fiber-reinforced polymer (FRP) panel systems were installed in a 207 m, five-span, three-lane bridge in an effort to assess the constructability, performance, and applicability of bridges with fiber-reinforced ...
Overview of a Modal-Based Condition Assessment Procedure
Publisher: American Society of Civil Engineers
Abstract: Condition assessment is a term that is used to describe the process of characterizing the physical condition of constructed systems. This paper summarizes a condition assessment (CA) procedure based on a complete system ...