Results 71 to 80 of about 5,915,569 (299)

VIBRATION-BASED DAMAGE DETECTION AND SEISMIC PERFORMANCE ASSESSMENT

open access: yes, 2012
Güvenirlik tahmini, yapı ve deprem mühendisliğinde performans değerlendirme ve risk belirleme stratejilerinin en önemli öğelerinden biridir. Tasarım ilkeleri performansa dayalı mühendislik çerçevesinde oluştuğu için yapıların kalan yaşam süresini belirlemek oldukça önemlidir. Geleneksel güvenirlik tahmini metodları deneysel veriden yoksun teorik içerik
openaire   +2 more sources

Mechanism of “seesaw‐type” rock burst in coal seam mining beneath mountainous areas

open access: yesDeep Underground Science and Engineering, EarlyView.
This study reveals the mechanism of “seesaw‐type” rock bursts during coal mining beneath mountainous areas. The advancing working face induces nonuniform fracturing of the overburden. The detached mountain mass then undergoes a seesaw‐type rotational movement around a shifting pivot, driving the primary fracture through a characteristic “open‐close ...
Chao Zhou   +9 more
wiley   +1 more source

Assessing extent of building damage following an earthquake: case study of the 2023 Turkey-Syria doublet

open access: yesnpj Natural Hazards
An earthquake doublet (M w 7.8 and M w 7.5) struck southeastern Turkey on February 6, 2023, causing widespread devastation. To evaluate seismic damage across 11 provinces, we analysed strong motion data, developed fragility functions and building damage ...
Guan Chen   +6 more
doaj   +1 more source

Comprehensive risk assessment between spatial urban characteristics and secondary seismic risk factors including structural-water supply aspects in South Korea

open access: yesGeomatics, Natural Hazards & Risk
As urbanization accelerates worldwide, critical infrastructure is increasingly concentrated in urban areas, and maintaining existing aging systems is becoming more challenging. At the same time, the risk of seismic events is rising.
Seong Hyun Lim   +3 more
doaj   +1 more source

Global Seismic Fragility Functions for Low-Rise RC Frames with Construction Deficiencies

open access: yesAdvances in Civil Engineering, 2020
Shake table tests were performed on three two-story 1 : 3 reduced scale RC frame structures, representative of buildings with construction deficiencies in Pakistan.
M. Rizwan   +9 more
doaj   +1 more source

Investigation on the mechanical behavior of the multiple‐layered lining structure of a water conveyance tunnel with high internal water pressure

open access: yesDeep Underground Science and Engineering, EarlyView.
This study presents large‐scale similarity model testing (geometric ratio 3.6) of an innovative multiple‐layered lining system—comprising exterior precast segments, middle self‐compacting concrete, and an interior steel pipe—for high‐pressure (0.75 MPa) water conveyance tunnels.
Ramin Asadi   +4 more
wiley   +1 more source

Radiometric Constraints on the Timing, Tempo, and Effects of Large Igneous Province Emplacement

open access: yesGeophysical Monograph Series, Page 27-82., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jennifer Kasbohm   +2 more
wiley  

+2 more sources

Mountain tunnel under earthquake force: A review of possible causes of damages and restoration methods

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2020
Accurate seismic assessment and proper aseismic design of underground structures require a comprehensive understanding of seismic performance and response of underground structures under earthquake force.
Xuepeng Zhang   +2 more
doaj   +1 more source

Seismic vulnerability assessment: Methodological elements and applications to the case of Romania [PDF]

open access: yes
This paper is intended to present some studies undertaken in order to develop a seismic vulnerability estimation system to fit the needs of development of earthquake scenarios and of development of an integrated disaster risk management system for ...
Pomonis, A.   +5 more
core  

Energy evolution‐based damage quantification and failure prediction of fault zone tunnel lining concrete: A novel acoustic emission–strain energy coupling approach

open access: yesDeep Underground Science and Engineering, EarlyView.
This study investigates the damage evolution and failure mechanisms of tunnel lining concrete in active fault zones through uniaxial compression tests integrated with acoustic emission (AE) monitoring. A strong linear correlation is identified between the AE cumulative absolute energy and the total strain energy, providing a reliable energy‐based ...
Shuaida Zhu   +4 more
wiley   +1 more source

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