Results 21 to 30 of about 96,454 (308)

Kriging Metamodel-Based Seismic Fragility Analysis of Single-Bent Reinforced Concrete Highway Bridges

open access: yesBuildings, 2021
Uncertainty quantification is an important issue in the seismic fragility analysis of bridge type structures. However, the influence of different sources of uncertainty on the seismic fragility of the system is commonly overlooked due to the costly re ...
Phuong Hoa Hoang   +3 more
doaj   +1 more source

Seismic Retrofit of Vulnerable Steel Frames Using Articulated Quadrilateral bracing system [PDF]

open access: yesNumerical Methods in Civil Engineering, 2019
This paper investigates the applicabilty of an innovative bracing, called Articulated Quadrilateral (AQ) bracing system, which uses shape memory alloys (SMAs), for retroffiting low-rise to high-rise vulnerable SMFRs against strong ground motions.
E. Darvishan
doaj   +1 more source

Typhoon-Induced Fragility Analysis of Transmission Tower in Ningbo Area Considering the Effect of Long-Term Corrosion

open access: yesApplied Sciences, 2022
The purpose of this paper was to investigate the influence of long-term corrosion on the deterioration of wind resistance of a steel transmission tower during its service life.
Qiang Li   +7 more
doaj   +1 more source

Safety Evaluation of a Water-Immersed Bridge Against Multiple Hazards via Machine Learning

open access: yesApplied Sciences, 2019
A safety analysis process for an immersed bridge is proposed, in which material nonlinear properties, added mass, soil spring, plastic hinge length and property, nonlinear pushover analysis, and time history analysis are included. Outcomes of interest in
Kuo-Wei Liao   +2 more
doaj   +1 more source

Mainshock-Integrated Aftershock Vulnerability Assessment of Bridge Structures

open access: yesApplied Sciences, 2020
Seismic fragility analysis is often conducted to quantify the vulnerability of civil structures under earthquake excitation. In recent years, besides mainshocks, strong aftershocks have been often witnessed to induce structural damage to engineered ...
Xuan Guo, Zheyu Zhang, ZhiQiang Chen
doaj   +1 more source

Seismic Fragility Comparative Research of Sea-crossing Bridges with Scour Conditions Under Onshore and Offshore Ground Motions

open access: yes工程科学与技术, 2021
Onshore ground motions were widely used for seismic analysis of sea-crossing bridges, and the difference between the onshore and offshore ground motions were ignored.
Debin WANG   +4 more
doaj  

Failure Probability Evaluations of a Wind Turbine Under Earthquakes and Wind Loads

open access: yes工程科学与技术, 2021
Comparative evaluations of failure probability were conducted with respect to an in-service wind turbine under earthquakes and wind loads. Firstly, to obtain the hazard curves under earthquakes and wind loads for a specific region where the wind turbine ...
Kaoshan DAI, Zhi ZHAO, Jiayao MENG
doaj  

Seismic performance assessment of subway station structures considering fuzzy probability of damage states

open access: yesYantu gongcheng xuebao, 2022
Quantification of structural damage states in the fragility analysis and seismic performance evaluation of underground structures usually adopts the deterministic threshold values, which is a limitation in the framework of performance-based seismic ...
ZHONG Zi-lan , SHI Yue-bo , LI Jin-qiang , ZHAO Mi , DU Xiu-li
doaj   +1 more source

Graphic Analysis of Osmotic Fragility of Erythrocytes

open access: yesThe Tohoku Journal of Experimental Medicine, 1976
A precise and highly reproducible method for analyzing the osmotic fragility of erythrocytes with a minute amount of blood (less than 10 mul) is described. The osmotic fragility curves are recorded with a coil planet centrifuge with accessories and a scanning photodensitometer.
NAOASAWA, TAKASHI   +4 more
openaire   +3 more sources

Influences of site conditions and ground-motion frequency characteristics on structural fragility

open access: yesYantu gongcheng xuebao, 2023
Site conditions and ground-motion frequency characteristics play a significant role in structural response and seismic damage distribution. However, the current structure fragility analysis techniques have hardly considered such effects. Taking the ratio
FEI Yang 1, 2, CHEN Longwei 1, 2
doaj   +1 more source

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