Results 31 to 40 of about 2,588 (226)

An optimizing microseismic method for rock burst early warning based on mining production process

open access: yesDeep Underground Science and Engineering, EarlyView.
A classification early warning method of rock burst based on hourly microseismic data is proposed, which can be combined with the on‐site production process to provide more timely warning. Abstract Microseismic (MS) events have been reported in nearly every coal mining country, which could well lead to rock burst in underground coal mines.
Zepeng Han   +6 more
wiley   +1 more source

Effect of Uncertainties in Material and Structural Detailing on the Seismic Vulnerability of RC Frames Considering Construction Quality Defects

open access: yesApplied Sciences, 2020
This paper evaluates the effect of construction quality defects on the seismic vulnerability of reinforced concrete (RC) frames. The variability in the construction quality of material properties and structural detailing is considered to assess the ...
Siyun Kim, Taehwan Moon, Sung Jig Kim
doaj   +1 more source

Seismic vulnerability analysis of vertical pile-supported wharf structure

open access: yesShenzhen Daxue xuebao. Ligong ban, 2022
In order to study the seismic vulnerability of pile-supported wharf structure, taking a vertical pile-supported wharf as the research object and considering the influence of the site, seismic spectrum characteristics and the uncertainty of ground motion ...
WU Zhihao   +4 more
doaj   +1 more source

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

open access: yesDeep 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   +6 more
wiley   +1 more source

Analytical Seismic Vulnerability and Performance Assessment of a Special-Importance Steel Building: Application Under the NCSE-02 Code

open access: yesApplied Sciences
This study develops a comprehensive workflow for the analytical seismic vulnerability and structural performance assessment of a special-importance steel building located in a region of elevated seismic hazard in southern Spain.
Rocio Romero-Jaren   +4 more
doaj   +1 more source

Seismic vulnerability assessment of a high-rise molten-salt solar tower based on incremental dynamic analysis [PDF]

open access: yesE3S Web of Conferences, 2020
This paper investigates the seismic performance of a high-rise molten-salt solar tower by finite element modelling. The integrated and separated models for solar tower based on the concrete damage plastic model are validated by matching the behaviour of ...
Sun Weiwei   +4 more
doaj   +1 more source

Seismic Vulnerability Analysis of Reinforced Concrete Buildings

open access: yes, 2016
—An existing RC building in Madinah is seismically evaluated with and without infill wall. Four model systems have been considered i.e. model I (no infill), model IIA (strut infill-update from field test), model IIB (strut infill- ASCE/SEI 41) and model IIC (strut infill-Soft storey- ASCE/SEI 41).
Amal K. Hassan   +3 more
openaire   +1 more source

Mitigating surcharge‐induced column‐head cracking in double‐deck shield tunnels using hyperelastic bearing joints

open access: yesDeep Underground Science and Engineering, EarlyView.
A staged three‐dimensional nonlinear soil–structure interaction (SSI) model is established, in which the initial geostress state, tunnel excavation, lining installation, delayed activation of the internal frame, and subsequent surcharge loading are simulated sequentially.
Xinyu Liu   +3 more
wiley   +1 more source

Seismic vulnerability evaluation of existing R.C. buildings

open access: yesHBRC Journal, 2018
Earthquakes are natural phenomena that occur at several places of the world. Severe earthquakes, when near inhabited districts, have caused extensive loss of life and property.
Sameh A. El-Betar
doaj   +1 more source

Comparison of vulnerabilities in typical bridges using macroseismic intensity scales

open access: yesCase Studies in Construction Materials, 2022
The macroseismic intensity scale in different regions is extensively assessed in the vulnerability assessment of building structures and is rarely used to quantify the damage characteristics of group bridges. To more accurately examine the differences in
Si-Qi Li, Hong-Bo Liu
doaj   +1 more source

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