Results 1 to 10 of about 5,906 (120)

Experimental Research on Damping Effect of Double-Layer Tuned Mass Damper for High-Rise Structure

open access: yesShock and Vibration, 2021
A double-layer tuned mass damper (DTMD) has advantages of wide damping frequency band and strong robustness. At present, there is a lack of seismic design methods for high-rise structures based on DTMDs.
Botan Shen   +6 more
doaj   +1 more source

Developing and Applying a Double Triangular Damping Device with Equivalent Negative Stiffness for Base-Isolated Buildings

open access: yesBuildings, 2023
A passive double triangular damping (DTD) device with equivalent negative stiffness is proposed in this study. The DTD device consists of transmission systems and triangular damping systems.
Tianwei Sun   +3 more
doaj   +1 more source

Compression performance analysis of multi-scale modified concrete based on response surface method

open access: yesCase Studies in Construction Materials, 2022
The natural multi-scale defects in concrete are important factors affecting the performance. To comprehensively improve the performance of concrete, a method of adding variety materials into concrete to improve the defects from nano-micron-millimeter ...
Haoxiang He   +3 more
doaj   +1 more source

Effect assessment for the interaction between shaking table and eccentric load

open access: yesScientific Reports, 2022
Electro-hydraulic shaking table is an essential experimental apparatus to evaluate structural performance under actual vibration condition. The control-structure interaction (CSI) between shaking table and eccentric load has lately received considerable ...
Juke Wang   +5 more
doaj   +1 more source

Seismic fragility analysis of the transfer and purging chamber in a nuclear power plant based on incremental dynamic analysis

open access: yesJournal of Radiation Research and Applied Sciences, 2022
The seismic fragility of the transfer and purging chamber in a nuclear power plant is assessed in this paper based on the incremental dynamic analysis method.
Xuchen Liu   +4 more
doaj   +1 more source

Effect of curing regimes on strength of magnesium silicate hydrate cement

open access: yesJournal of Materials Research and Technology, 2023
This study aimed to investigate the impact of different curing regimes on the strength of magnesium silicate hydrate cement (MSHC). The study employed various microscopic tests, including XRD, TG, SEM, and MIP, to analyze the underlying mechanisms.
Xiao Luo   +7 more
doaj   +1 more source

Optimal Sensor Placement for Spatial Structure Based on Importance Coefficient and Randomness

open access: yesShock and Vibration, 2018
The current methods of optimal sensor placement are majorly presented based on modal analysis theory, lacking the consideration of damage process of the structure.
Haoxiang He   +4 more
doaj   +1 more source

Signal Nonstationary Degree Evaluation Method Based on Moving Statistics Theory

open access: yesShock and Vibration, 2021
Nonstationary signal refers to the signal whose statistics change with time, and its nonstationary degree evaluation can provide effective support for the evaluation of the operating state of the signal source.
Haoxiang He, Shitao Cheng, Xiaofu Zhang
doaj   +1 more source

Optimization and Damping Performance of a Coal-Fired Power Plant Building Equipped with Multiple Coal Bucket Dampers

open access: yesAdvances in Civil Engineering, 2018
A parameter optimization design method is proposed for multiple coal bucket dampers (CBDs) to reduce the seismic response of coal-fired power plants. To test the damping effect of the optimized CBDs, a 1 : 30 scale shaking table test model of a power ...
Ling-Yun Peng   +3 more
doaj   +1 more source

Generation of Uniform Hazard Spectrum Based on the Stochastic Method of Simulating Ground Motion and Its Use in Nuclear Power Plants

open access: yesAdvances in Civil Engineering, 2018
To obtain an accurate uniform hazard spectrum (UHS), this paper proposes combining a stochastic simulation with probabilistic seismic hazard analysis.
Xueming Zhang   +4 more
doaj   +1 more source

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