Search
CSV
RISSeismic Fragility Analysis of Curved Bridges with Precast Segmental Pier Columns Considering Directionality of Multisupport Earthquake Motions
Publisher: American Society of Civil Engineers
Abstract: AbstractPrecast segmental pier columns (PSPCs) have been recently developed in the context
of accelerated bridge construction. Although extensive studies have examined the seismic
performance of bridges with PSPCs, research ...
Effectiveness of Negative Stiffness System in the Benchmark Structural-Control Problem for Seismically Excited Highway Bridges
Publisher: American Society of Civil Engineers
Abstract: The effectiveness of a novel negative stiffness device (NSD) and damper system for reduction of the seismic response of highway bridges was investigated in this study. To this end, a Phase II benchmark highway bridge was ...
Dynamic Modified Model for RC Columns Based on Experimental Observations and Bayesian Updating Method
Publisher: American Society of Civil Engineers
Abstract: In this paper, a probabilistic framework for constructing a dynamic modified model for RC columns was developed based on dynamic loading test results and the Bayesian updating method. The influences of strain rate on the ...
Simplified Collapse-Prevention Evaluation for the Reserve System of Low-Ductility Steel Concentrically Braced Frames
Publisher: American Society of Civil Engineers
Abstract: Low-ductility steel concentrically braced frames (CBFs) are widely used in buildings as a lateral resistance system in seismic regions around the world due to their high stiffness and strength. Steel CBF buildings have ...
Woodbury Approximation Method for Structural Nonlinear Analysis
Publisher: American Society of Civil Engineers
Abstract: As an exact method, the Woodbury formula is used to solve local material nonlinearity problems in structural analysis, in which the calculation and factorization of the global stiffness matrix are avoidable compared to the ...
Improved Woodbury Solution Method for Nonlinear Analysis with High-Rank Modifications Based on a Sparse Approximation Approach
Publisher: American Society of Civil Engineers
Abstract: In mathematics, the Woodbury formula is an efficient solution method for low-rank modifications that has been utilized by many researchers for the implementation of structural analyses with local material nonlinearity. The ...
Simulation of Spatially Varying Seafloor Motions Using Onshore Earthquake Recordings
Publisher: American Society of Civil Engineers
Abstract: Compared to the seismic motions recorded on the onshore sites, the quantity of offshore earthquake recordings is very limited. This paper presents a novel method to simulate spatially varying ground motions at multiple ...
Data-Driven Adaptive Nearest-Neighbor Reconstruction for Early-Stage Damage Detection in Structures Subjected to Changing Environments
Publisher: American Society of Civil Engineers
Abstract: AbstractThe utilization of intelligent damage detection techniques that rely on modal frequencies
has resulted in remarkable progress in civil structural health monitoring (SHM). However,
changing environments often induce ...
Frequency Identification of Practical Bridges through Higher-Order Spectrum
Publisher: American Society of Civil Engineers
Abstract: Identifying the frequencies of practical bridges can help in understanding the bridge dynamic property. However, the vibration amplitude excited by wind load and traffic load is too small, resulting in a small signal noise ...
New Representative Temperature for Performance Alarming of Bridge Expansion Joints through Temperature-Displacement Relationship
Publisher: American Society of Civil Engineers
Abstract: It is important to understand the operational performance of bridge expansion joints in real time. This paper proposes a novel performance-alarming approach for bridge expansion joints using continuous temperature and ...