Results 51 to 60 of about 2,611 (203)

Cross‐Entropy of Power Spectral Density Function: A Modal Identification Framework

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT The power spectral density (PSD) function of measured structural response contains a significant amount of information, including the modal parameters (natural frequencies, damping ratios). Output‐only system identification or modal identification technique can be used for extracting such modal parameters from the measured response or its ...
Su‐Hong Kim, Jae‐Seung Hwang, Dae‐Kun Kwon, Ahsan Kareem   +3 more
wiley   +1 more source

Random response analysis of stadium canopy roof under multiple earthquake excitations

工程科学与技术, 2010
:In this paper, the pseudo excitation method was further improved and used for multi-dimensional random seismic analysis of a typical stadium canopy roof structure named Jinan Olympic Center.
Wang Qi
doaj  

Seismic Performance and Vibration‐Based Damage Identification of Two‐Storey Balloon‐Framed CLT Shear Walls

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT While cross‐laminated timber (CLT) is increasingly utilized in lateral force‐resisting systems in mass timber construction, research has predominantly focused on platform‐type construction. Balloon‐type CLT shear wall systems offer distinct structural advantages, notably the elimination of cumulative perpendicular‐to‐grain compression and a ...
Samira Mohammadyzadeh, Houman Ganjali, Jianhui Zhou, Thomas Tannert   +3 more
wiley   +1 more source

Seismic Assessment of Footbridges under Spatial Variation of Earthquake Ground Motion (SVEGM): Experimental Testing and Finite Element Analyses

Sensors, 2020
In this paper, the seismic assessments of two footbridges, i.e., a single-span steel frame footbridge and a three-span cable-stayed structure, to the spatial variation of earthquake ground motion (SVEGM) are presented.
Izabela Joanna Drygala, Joanna Maria Dulinska, Maria Anna Polak   +2 more
doaj   +1 more source

Detecting Loosening of Bolt‐Flanged Pipe Using Smoothed Pseudo Wigner–Ville Distribution: Digital Twin‐Based Approach Using Convolution Neural Networks

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT In this paper, an integrated digital twin‐based fault‐diagnosis framework is proposed to detect bolt loosening in flanged pipe connections. The approach combines finite element‐based numerical modeling, experimental modal analysis, and advanced signal processing‐assisted deep learning to achieve reliable loosening detection under operational ...
Milad Shabani Yousefabad, Behzad Totakhaneh Bonab, Morteza Homayoun Sadeghi, Mir Mohammad Ettefagh, Mohammad Reza Chalak Qazani   +4 more
wiley   +1 more source

Optimum design and performance of a base-isolated structure with tuned mass negative stiffness inerter damper

Scientific Reports, 2023
In order to increase the efficiency of the structures to resist seismic excitation, combinations of inerter, negative stiffness, and tuned mass damper are used.
K. K. Kiran, Mohammed A. Al-Osta, Shamsad Ahmad   +2 more
doaj   +1 more source

Computational intelligence model for predicting the compressive strength of FRP‐confined concrete column

Structural Concrete, EarlyView.
Abstract Fiber reinforced polymer (FRP) wrapping technology is commonly used to enhance the compressive strength (CS) of reinforced concrete (RC) members. Accurate prediction of the compressive strength of FRP‐confined concrete columns is crucial for optimizing structural design and helps reduce the time and costs associated with physical testing ...
XuanRui Yu, Nima Khodadadi, Anxiang Song, Tianyu Hu, Yang Yu, Antonio Nanni   +5 more
wiley   +1 more source

Resonance assessment of 2-story RC framed structure using linear time history analysis methods [PDF]

MATEC Web of Conferences
In this paper, we investigate the seismic response of 2D building subjected to harmonic sinusoidal forces at the base with varying frequencies. Linear time history analysis (LTHA) is employed to evaluate the dynamic behavior of 2-story 4-bays reinforced ...
El Marzguioui Samir, El Ghoulbzouri Abdelouafi   +1 more
doaj   +1 more source

TRM‐to‐concrete interface bond without anchors: Combined experimental, analytical, and numerical modeling approach

Structural Concrete, EarlyView.
Abstract Textile reinforced mortar (TRM) systems have emerged as an effective alternative to conventional FRP strengthening solutions due to their compatibility with concrete substrates and favorable performance under adverse environmental conditions.
Ömer Mercimek, Özlem Çalışkan, Özgür Anıl, R. Tuğrul Erdem, Murat Yüncüler   +4 more
wiley   +1 more source

Nonlinear seismic response of 3D canyon in deep soft soils

Yantu gongcheng xuebao, 2017
A model is proposed for nonlinear seismic response of 3D canyon in deep soft soils. In the model, the viscous-elastic boundary and the equivalent node force input method are combined for wave motion input, and the equivalent linear method is introduced ...
LIANG Jian-wen 1, 2, LIANG Jia-li 2, ZHANG Ji 2, BA Zhen-ning 2
doaj   +1 more source