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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 ...
Comparative Analysis of Infrared Signatures of Turbofan Engine Exhaust System With or Without Afterburning
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The flow fields and infrared signatures of a turbofan engine axisymmetric exhaust system with or without afterburning have been numerically investigated. The flow fields of the exhaust system have been calculated using a ...
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, ...
Use of Continuous-Wavelet Transmissibility for Structural Operational Modal Analysis
Publisher: American Society of Civil Engineers
Abstract: Operational modal analysis is a challenging task to deal with output-only vibration measurements contaminated by noise. This paper proposes a new method for operational modal identification of a linear system using ...
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