Results 41 to 50 of about 435,551 (310)

Fire resistance of steel beam to square CFST column composite joints using RC slabs: Experiments and numerical studies [PDF]

open access: yes, 2019
In this paper, experimental investigation and numerical simulation of steel beam to square concrete-filled steel tube (CFST) column composite joints that use reinforced concrete (RC) slabs subjected to localized and global fire conditions are presented ...
Fu, F., Yang, Y-F.
core   +1 more source

Cyclic response of RC beam-column joints reinforced with plain bars: an experimental testing campaign [PDF]

open access: yes, 2012
Existing reinforced concrete (RC) buildings constructed until the mid-70’s, with plain reinforcing bars, are expected to behave poorly when subjected to earthquake actions.
Costa, A.   +3 more
core   +1 more source

Estimating fixed-end rotations of reinforced concrete members at yielding and ultimate [PDF]

open access: yes, 2015
Strain-penetration of the longitudinal reinforcement of reinforced concrete (RC) members in the joints and/or footings results in fixed-end rotations at the member ends.
Alsiwat   +7 more
core   +1 more source

Cracking the Code: Which Ocular Symptoms Predict Dry Eye Signs? Insights from a large international sicca registry

open access: yesArthritis Care &Research, Accepted Article.
Purpose The study aimed to identify symptom‐based predictors of dry eye disease (DED) signs in the Sjögrens International Collaborative Clinical Alliance (SICCA) cohort. Methods Retrospective analysis examining 16 ocular symptoms (most graded 0‐4) and artificial tear (AT) use (graded 0‐3) as predictors of DED signs [abnormal ocular surface staining ...
Pragnya R Donthineni   +7 more
wiley   +1 more source

Seismic Performance of Full-Scale Joints Composed by Concrete-Filled Steel Tube Column and Reinforced Concrete Beam with Steel Plate-Stud Connections

open access: yesAdvances in Civil Engineering, 2019
A concrete-filled steel tube (CFST) column has the advantages of high bearing capacity, high stiffness, and good ductility, while reinforced concrete (RC) structure systems are familiar to engineers.
Zhenbao Li   +4 more
doaj   +1 more source

Numerical Investigation of Behavior of RC Columns Strengtheneg with RC Jacket [PDF]

open access: yesAcademic Perspective Procedia, 2019
Strengthening of structural elements which are insufficient in terms of earthquake performance is very important for the safety of existing structures. Nowadays, one of the most commonly used methods is strengthening such members with RC jacketing. Several experimental studies have been conducted in the literature to investigate behavior of structural ...
M. Burhan Navdar, Naci Caglar
openaire   +1 more source

Nonlinear modeling of the cyclic response of RC columns [PDF]

open access: yes, 2012
Cyclic load reversals (like those induced by earthquakes) result in accelerated bond degradation, leading to significant bar slippage. The bond-slip mechanism is reported to be one of the most common causes of damage and even collapse of existing RC ...
Costa, A.   +4 more
core   +1 more source

Damage Characterization of Beam-Column Joints Reinforced with GFRP Under Reversed Cyclic Loading

open access: yes, 2009
The use of fiber reinforced polymer (FRP) reinforcement in concrete structures has been on the rise due to its advantages over conventional steel reinforcement such as corrosion.
Said, Aly M.
core   +1 more source

Seismic amelioration of existing reinforced concrete buildings. Strategy to optimize the amount of reinforcement for joints [PDF]

open access: yes, 2017
Most of the existing Reinforced Concrete (RC) buildings in Italy were built according to obsolete regulations that were not enough aware of issues related to seismic design so that they need to be upgraded by pursuing either amelioration or full seismic ...
Bianco, Vincenzo   +3 more
core   +2 more sources

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

open access: yesInternational Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam   +2 more
wiley   +1 more source

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