Results 41 to 50 of about 190,363 (315)

Effect of beam-column joints flexibility on the seismic response of setback RC buildings designed according to the Algerian seismic code

open access: yesFracture and Structural Integrity, 2022
The Algerian seismic code assumes that the beam-column joints in monolithic reinforced concrete (RC) buildings are fully rigid. However, many experiments have proven the existence of relative rotations in these connections, and then the presence of ...
Abdallah Yacine Rahmani   +2 more
doaj   +1 more source

Low cycle fatigue tests of reinforced concrete columns and joints built with ribbed reinforcement and plain stirrups [PDF]

open access: yes, 2012
The majority of existing reinforced concrete (RC) buildings were built prior to the introduction of seismic codes. As observed in various recent earthquakes, due to their lack of structural capacity and ductility such structures are very vulnerable and
Borg, R. C., Rossetto, T., Varum, H.
core   +1 more source

Seismic retrofitting of a deteriorated RC building

open access: yesCase Studies in Construction Materials, 2023
Numerous existing reinforced concrete (RC) buildings don’t fulfill current seismic code provisions as they haven’t been designed to satisfy these provisions. Also, due to many environmental factors, structural members such as columns, beams, and slabs are exposed to severe deterioration leading to high-risk levels.
Mohamed Selim   +2 more
openaire   +2 more sources

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

An Accurate Numerical Model Simulating Hysteretic Behavior of Reinforced Concrete Columns Irrespective of Types of Loading Protocols

open access: yesInternational Journal of Concrete Structures and Materials, 2021
In older reinforced concrete (RC) buildings, columns are fragile elements that can induce collapse of entire buildings during earthquakes. An accurate assessment of the seismic vulnerability of RC buildings using nonlinear response history analyses ...
Chang Seok Lee, Sang Whan Han
doaj   +1 more source

Common irregularities and its effects on reinforced concrete building response

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2021
In most of the countries, the irregular building construction is popular for fulfilling both aesthetic and functional requirements. However, the evidence of past earthquakes in Nepal and the globe demonstrated the higher level of seismic vulnerability of
Krishna Ghimire, Hemchandra Chaulagain
doaj   +1 more source

Automated Damage Index Estimation of Reinforced Concrete Columns for Post-Earthquake Evaluations [PDF]

open access: yes, 2015
In emergency scenarios, immediate reconnaissance efforts are necessary. These efforts often take months to complete in full. While underway, building occupants are unable to return to their homes/businesses, and thus, the impact on the society of the ...
,   +4 more
core   +1 more source

Targeted modulation of IGFL2‐AS1 reveals its translational potential in cervical adenocarcinoma

open access: yesMolecular Oncology, EarlyView.
Cervical adenocarcinoma patients face worse outcomes than squamous cell carcinoma counterparts despite similar treatment. The identification of IGFL2‐AS1's differential expression provides a molecular basis for distinguishing these histotypes, paving the way for personalized therapies and improved survival in vulnerable populations globally.
Ricardo Cesar Cintra   +6 more
wiley   +1 more source

Flexural behavior of historical RC beams strengthened with hybrid FRP sheets

open access: yesCase Studies in Construction Materials
Historical reinforced concrete (RC) buildings are culturally and aesthetically significant and require conservation due to aging. Strengthening RC buildings often requires the use of Fiber Reinforced Polymer (FRP) sheets, however distinct material ...
Boxu Lin, Qing Chun, Zhengdong Mi
doaj   +1 more source

Dependence of RC high-rise buildings response on the earthquake intensity

open access: yesGrađevinar, 2015
The relationship between the ground motion intensity measure, IM, and the engineering demand parameter, EDP, is analysed in the paper so as to identify and define the most efficient EDP-IM relationships for RC high-rise buildings. A 30-story RC high-rise
Jelena Pejović, Srđan Janković
doaj   +1 more source

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