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Ultimate Behavior of Long-Span Cable-Stayed Bridges
Publisher: American Society of Civil Engineers
Abstract: The study described here investigates the nonlinear static and ultimate behavior of a long-span cable-stayed bridge up to failure and evaluates the overall safety of the bridge. Both geometric and material nonlinearities ...
Elastic-Plastic Seismic Behavior of Long Span Cable-Stayed Bridges
Publisher: American Society of Civil Engineers
Abstract: This paper investigates the elastic-plastic seismic behavior of long span cable-stayed steel bridges through the plane finite-element model. Both geometric and material nonlinearities are involved in the analysis. The ...
Structural Finite Element Model Updating Using Ambient Vibration Test Results
Publisher: American Society of Civil Engineers
Abstract: This paper presents a practical and user-friendly finite element (FE) model updating technique for real structures using ambient vibration test results. The first case study of a simulated simply supported beam demonstrates ...
Structural Damage Identification using Modal Data. I: Simulation Verification
Publisher: American Society of Civil Engineers
Abstract: The change of modal characteristics directly provides an indication of structural damage. Based on changes in frequencies and mode shapes of vibration, a damage identification technique is proposed in this paper for ...
Structural Damage Identification using Modal Data. II: Test Verification
Publisher: American Society of Civil Engineers
Abstract: Most of the mode-based damage identification techniques have been well verified by numerical simulations. However, many of them still face problems when applied to real measurements where noise is present. In this paper, ...
Parameter Selection in Finite-Element-Model Updating by Global Sensitivity Analysis Using Gaussian Process Metamodel
Publisher: American Society of Civil Engineers
Abstract: Parameter selection is a key step in finite-element-model updating (FEMU) because it determines whether the task of FEMU is successful or not. The as-built engineering structures are inevitably subject to many sources of ...
Interactive Buckling Behavior and Ultimate Load of I-Section Steel Columns
Publisher: American Society of Civil Engineers
Abstract: The paper is intended to present a numerical and experimental study on the local-overall interactive buckling behavior and ultimate load of I-section steel columns. The numerical method, named the finite strip plasticity ...
Discussion of “Structural Damage Detection from Modal Strain Energy Change” by Z. Y. Shi, S. S. Law, and L. M. Zhang
Publisher: American Society of Civil Engineers
Cable Modal Parameter Identification. II: Modal Tests
Publisher: American Society of Civil Engineers
Abstract: The cable dynamic stiffness describes the load–deformation behavior that reflects the cable intrinsic dynamic characteristics. It is defined as a ratio of response to excitation and represents a very similar frequency ...
Cable Modal Parameter Identification. I: Theory
Publisher: American Society of Civil Engineers
Abstract: Cable modal parameters (natural frequencies and damping ratios) that represent the cable inherent dynamic characteristics play an important role in the construction, vibration control, condition assessment, and long-term ...