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RISDiscussion of “Evaluation of Force-Based Frame Element Response Sensitivity Formulations” by Michael H. Scott
Publisher: American Society of Civil Engineers
Time-Variant Reliability Analysis of Linear Elastic Systems Subjected to Fully Nonstationary Stochastic Excitations
Publisher: American Society of Civil Engineers
Abstract: This paper presents closed-form solutions for the nongeometric spectral characteristics of nonstationary stochastic processes representing the response of linear elastic structural models subjected to fully nonstationary ...
Structural Reliability Applications of Nonstationary Spectral Characteristics
Publisher: American Society of Civil Engineers
Abstract: This paper presents new closed-form analytical approximations to the first-passage problem in structural reliability by using the exact closed-form solutions for the spectral characteristics of nonstationary random processes. ...
Random Vibration Analysis of Dynamic Vehicle-Bridge Interaction Due to Road Unevenness
Publisher: American Society of Civil Engineers
Abstract: Vehicle-bridge interaction has been studied for a long time to investigate the structural behavior of bridges and vehicle ride comfort. An original frequency domain method is presented where the vehicle-bridge interaction ...
Probabilistic Nonlinear Response Analysis of Steel-Concrete Composite Beams
Publisher: American Society of Civil Engineers
Abstract: This paper employs a methodology for probabilistic response analysis based on the first-order second moment (FOSM) method in conjunction with response sensitivity computation through the direct differentiation method (DDM), ...
Material Parameter Identification in Distributed Plasticity FE Models of Frame-Type Structures Using Nonlinear Stochastic Filtering
Publisher: American Society of Civil Engineers
Abstract: This paper proposes a novel framework that combines high-fidelity mechanics-based nonlinear (hysteretic) finite-element (FE) models and a nonlinear stochastic filtering technique, referred to as the unscented Kalman filter, ...
Nonlinear Seismic Response Analysis of Steel–Concrete Composite Frames
Publisher: American Society of Civil Engineers
Abstract: Frame finite-element models permit obtaining, at moderate computational cost, significant information on the dynamic response behavior of steel–concrete composite (SCC) frame structures. As an extension of conventional ...
New Multidimensional Visualization Technique for Limit-State Surfaces in Nonlinear Finite-Element Reliability Analysis
Publisher: American Society of Civil Engineers
Abstract: Structural reliability problems involving the use of advanced finite-element models of real-world structures are usually defined by limit-states expressed as functions (referred to as limit-state functions) of basic random ...
Handling of Constraints in Finite-Element Response Sensitivity Analysis
Publisher: American Society of Civil Engineers
Abstract: In this paper, the direct differentiation method (DDM) for finite-element (FE) response sensitivity analysis is extended to linear and nonlinear FE models with multi-point constraints (MPCs). The analytical developments ...
Three-Dimensional Seismic Response of Humboldt Bay Bridge-Foundation-Ground System
Publisher: American Society of Civil Engineers
Abstract: Soil-structure interaction may play a major role in the seismic response of a bridge structure. Specifically, soil layers of low stiffness and strength may result in permanent displacement of the abutments and foundations, ...