Results 81 to 90 of about 1,774,351 (250)

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

Earthquake Damage Visualization (EDV) Technique for the Rapid Detection of Earthquake-Induced Damages Using SAR Data

open access: yesSensors, 2017
The damage of buildings and manmade structures, where most of human activities occur, is the major cause of casualties of from earthquakes. In this paper, an improved technique, Earthquake Damage Visualization (EDV) is presented for the rapid detection ...
Ram C. Sharma   +5 more
doaj   +1 more source

Reusing depleted oil and gas wells for geothermal energy: Feasibility, challenges, and a decision‐making framework for sustainable conversion

open access: yesDeep Underground Science and Engineering, EarlyView.
The graphical abstract presents a structured decision‐support framework for assessing the feasibility of converting depleted oil and gas wells into geothermal energy systems. The left panel illustrates a comprehensive, multi‐stage decision‐making framework progressing from prefeasibility screening and technical–economic analysis to policy alignment ...
Karolina Bieryt   +3 more
wiley   +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 Performance Assessment of Tunnel Structure Based on Incremental Dynamic Analysis

open access: yes工程科学与技术, 2019
With the frequent occurrence of earthquake disasters in recent years, underground structures in strong earthquake areas have been repeatedly damaged.
Guoqing LIU, Ming XIAO, Juntao CHEN
doaj  

Numerical and Experimental Evaluation of a Simplified Lateral Spring Formulation for Rocking Structures

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Rocking podium isolation systems have gained significant research interest as a method of limiting seismic demands on superstructures and eliminating residual post‐earthquake drifts through self‐centring behaviour. However, while numerous models of varying complexity, including analytical, phenomenological, and physical formulations, have been
Marawan Zaki   +2 more
wiley   +1 more source

Seismic Evaluation and Retrofit of Concrete Buildings Volume 1

open access: yes, 1996
Buku ini terdiri atas dua volume, dimana volume pertama membahas tentang bagian-bagian utama dari metodologi evaluasi dan retrofit. Buku akan membantu pembaca untuk memahami bagaimana melakukan evaluasi seismik terhadap bangunan.xix, 317 p. : ill. ; 28,5
Seismic Safety Commission   +1 more
core  

Earthen construction: structural vulnerabilities and retrofit solutions for seismic actions [PDF]

open access: yes, 2012
Earthen structures present very appealing characteristics regarding a more sustainable practice with the preservation of our natural resources. However, when subjected to earthquake ground motions, this type of construction may present a deficient ...
Oliveira, C. F., Varum, H., Vargas, J.
core  

Design Internal Forces of Non‐Dissipative Members in CBFs With Regular and Irregular Brace Configurations

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Steel Concentrically Braced Frames (CBFs) are widely used in seismic regions, with chevron and split‐X configurations commonly adopted for their structural efficiency and architectural flexibility. Although extensive research has been carried out on these systems, the effectiveness of the formulations available in the literature for estimating
Melina Bosco, Pier Paolo Rossi
wiley   +1 more source

Seismic vulnerability of churches in Faial and Pico islands, Azores [PDF]

open access: yes, 2012
Earthquakes represent one of the main cause of serious damage and loss of historic and architectural heritage. Interventions to preserve these building should start with a careful knowledge and assessment of their seismic vulnerability, in order to ...
Costa, A.   +6 more
core  

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