Results 41 to 50 of about 894,833 (213)

A semi-active control system in coupled buildings with base-isolation and magnetorheological dampers using an adaptive neuro-fuzzy inference system

Frontiers in Built Environment, 2022
Connecting two buildings has been proved as an effective method of structural control for alleviating seismic responses. Researchers have proposed that two adjacent buildings through supplemental energy dissipating devices to mitigate the buildings ...
Wei Chun Tai, Masahiro Ikenaga
doaj   +1 more source

Seismic analysis and design of tunnels within fault ground: A review

Deep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang, Yujing Jiang, Xuepeng Zhang, Yuyong Jiao, Ningbo Li, Xiao Wang, Bo Li   +6 more
wiley   +1 more source

Dynamic prediction of coal and gas outburst risk based on quantitative analysis of stress–energy evolution and adaptive correction

Deep Underground Science and Engineering, EarlyView.
This study quantitatively analyzed the spatiotemporal evolution of stress redistribution ahead of the working face by integrating coal seam distribution, tectonic stress anomalies, gas pressure, and mining‐induced disturbances. An R‐value criterion for coal and gas outburst (CGO) risk assessment was established based on energy principles.
Yingjie Zhao, Xueqiu He, Dazhao Song, Liming Qiu, Minggong Guo, Jie Liu, Qiang Liu, Yi Zhu   +7 more
wiley   +1 more source

Full Wave-equation Based Passive Seismic Imaging and Multispectral Seismic Geometric Attributes [PDF]

, 2020
Both passive (e.g., microseismic) and active seismic methods are used for the hydrocarbon exploration. For example, microseismic data analysis provides helpful information in not only mapping hydraulic fracture initiation, but also reservoir monitoring ...
Lyu, Bin
core  

Development and Validation of a Seismic Design Method for Anchored Retaining Walls

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Retaining walls with multiple anchor levels are widely used as permanent excavation support systems for the construction of linear infrastructures. Yet, their seismic behaviour remains largely unexplored, and current design approaches rely on conventional procedures that do not adequately reflect the actual dynamic response of these systems ...
Luigi Callisto, Chiara Molinaro, Davide Noè Gorini   +2 more
wiley   +1 more source

Regional Seismic Wavefield Propagation [PDF]

, 2004
Through the examination of local and regional seismic waveform data the crust and upper mantle of southern California are investigated. Using local and regional seismic phases such as Pn, Sn, PL, and surface waves, seismic wave velocities of interesting
Savage, Brian Kirk
core   +1 more source

Seismic Performance of Reduced‐Strength Steel MRFs With SMA‐Based Superelastic Friction Dampers: An Experimental Investigation

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Shape memory alloys (SMAs) exhibit excellent self‐centering capability due to their stress‐induced phase transformation, making them highly suitable for applications in resilient infrastructure. This study investigates the seismic performance of reduced‐strength moment‐resisting frames (MRFs) equipped with SMA‐based superelastic friction ...
Faisal Nissar Malik, Liang Cao, James Ricles, Fei Shi, Chinmoy Kolay, Osman E. Ozbulut   +5 more
wiley   +1 more source

DeFault: DEep‐Learning‐Based FAULT Delineation Using the IBDP Passive Seismic Data at the Decatur CO2 Storage Site

Earth and Space Science
The carbon capture, utilization, and storage (CCUS) framework is an essential component in reducing greenhouse gas emissions, with its success hinging on the comprehensive knowledge of subsurface geology and geomechanics. Passive seismic event relocation
Hanchen Wang, Yinpeng Chen, Tariq Alkhalifah, Ting Chen, Youzuo Lin, David Alumbaugh   +5 more
doaj   +1 more source

Deteriorated Hysteresis Behavior of Reinforced Concrete Bridge Columns With Lap‐Spliced Circular Hoop Reinforcement

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Five lap‐spliced circular hoop (CH) concrete bridge columns, designed in accordance with the current Japanese bridge design code and Taiwan bridge design practice, were tested in this study to investigate the effects of longitudinal reinforcement and aspect ratios on deteriorated hysteresis behavior.
Ping‐Hsiung Wang, Cheng‐Yu Huang, Chiao‐Chu Tseng   +2 more
wiley   +1 more source

474: lighting and thermal performance of innovative shading devices: new insights into their aesthetics and control in a Mediterranean climate [PDF]

, 2008
With a view towards minimising energy demand for cooling and artificial lighting in buildings, this paper evaluates innovative shading devices and how they can balance a generous degree of control mastering seasonal natural light with thermal gains in a ...
Passive & Low Energy Architecture (PLEA), Calleja, Herman, Buhagiar, Vincent, 25th Conference on Passive and Low Energy Architecture   +3 more
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