Results 21 to 30 of about 257,175 (322)

Cyclic Behavior of FRP Strengthened Beam-Column Joints under Various Concrete Damage Levels

open access: yesConstruction Materials, 2023
This paper is intended to examine the efficiency of utilizing the FRP composite material with an externally bonded technique in enhancing the behavior of the damaged B-C joints and controlling their failure mode using the NLFEA approach.
Rajai Al-Rousan   +6 more
doaj   +1 more source

Cyclic behavior of alkali-silica reaction-damaged reinforced concrete beam-column joints strengthened with FRP composites

open access: yesCase Studies in Construction Materials, 2022
The research investigates the effect of using external fiber-reinforced polymer (FRP) –composites to strengthen the alkali-silica reaction (ASR)-damaged reinforced concrete (RC) beam-column joints. The nonlinear finite element analysis (NLFEA) method has
Rajai Z. Al-Rousan
doaj   +1 more source

Behavior of CFT steel columns damaged by thermal shock

open access: yesMagazine of Civil Engineering, 2021
Experimental evaluation of the structural behavior of concrete-filled tubular (CFT) circular steel columns under the combined effects of axial and cyclic lateral loads is costly and challenging.
Al-Rousan Rajai
doaj   +1 more source

Experimental Investigation on Seismic Resistance of RC Shear Walls with CFRP Bars in Boundary Elements

open access: yesInternational Journal of Concrete Structures and Materials, 2020
Experimental investigation on seismic performance of RC shear walls reinforced with CFRP bars in boundary elements to enhance the resilience was presented which is expected for stable resistance capacity and small residual deformation. Six RC shear walls
Jun Zhao   +4 more
doaj   +1 more source

Behavior of B-C connections damaged by thermal shock

open access: yesMagazine of Civil Engineering, 2020
The behavior of beam-column (B-C) connections received thorough investigation during the past decades focusing on critically-detailed connections before and after strengthening. Exposure of such B-C connections to thermal shock due to subjected to cycles
Rajai Al-Rousan
doaj   +1 more source

Repair of fire-exposed preloaded rectangular concrete columns by postcompressed steel plates [PDF]

open access: yes, 2014
This paper describes an experimental study of axially loaded, fire-exposed, rectangular reinforced concrete (RC) columns repaired with post-compressed steel plates.
Su, KL, Wang, L
core   +1 more source

Kinematics of a cervical disc prosthesis implanted above or below one- and two-level fusions

open access: yesNorth American Spine Society Journal, 2022
Background: The theoretical advantages of hybrid constructs over multi-level fusion have been illustrated in clinical and biomechanical studies. However, there is no biomechanical data on hybrid constructs using load control analyses.
Muturi G. Muriuki   +5 more
doaj   +1 more source

La enfermería y el cuidado de los enfermos mentales en el s. XV [PDF]

open access: yes, 2001
In this article the simulation the results of acoustic emission signals formed by friction surfaces with composite materials at load increasing were showed.
О. П. Космач   +2 more
core   +3 more sources

Pre-Load Effect on CFRP-Confinement of Concrete Columns: Experimental and Theoretical Study

open access: yesCrystals, 2021
The axial compression strength of concrete columns has been proved to be significantly enhanced by external confinement. In this perspective, the use of Fiber-Reinforced Polymers (FRPs) has been extensively studied.
Francesco Micelli   +2 more
doaj   +1 more source

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