Results 21 to 30 of about 5,541 (264)

Analysis of the global tall buildings stability in flat slabs considering the soil structure interaction

open access: yesRevista IBRACON de Estruturas e Materiais, 2020
The global stability of tall reinforced concrete buildings made up of flat slabs is guaranteed, among other factors, by the existence of considerably rigid elements such as elevator cores and stairways.
E. C. ALVES, L. A. FEITOSA
doaj   +2 more sources

Comparative Analysis of Mechanical Performance of Flat Slabs with Reverse and Conventional Column Caps

open access: yesBuildings, 2022
Compared with the conventional column caps, the reverse column caps that are used for slab-column joint of basement roof can improve the clearance of the basement while ensuring structural safety, and they are hidden in the covering soil without ...
Mosong Gong   +3 more
doaj   +1 more source

Experimental investigation of strengthening slab-column connections with CFRP fan

open access: yesAin Shams Engineering Journal, 2019
This paper investigates experimentally the punching shear behavior of flat slabs-column connections strengthened with CFRP (Carbon fiber reinforced polymer) string having a fan shape as a new strengthening technique.
Khaled F. El-Kashif   +2 more
doaj   +1 more source

Enhancement of flexural behavior of hybrid flat slab by using SIFCON

open access: yesOpen Engineering, 2023
Flat slab systems are widely utilized in construction due to their versatility and efficient use of space. Nevertheless, they are susceptible to flexural failure, particularly in the tension zone. To address this issue, slurry-infiltrated fiber concrete (
Alsheameri Aliyaa M.   +2 more
doaj   +1 more source

Punching shear in concrete reinforced flat slabs with steel fibers and shear reinforcement

open access: yesRevista IBRACON de Estruturas e Materiais, 2018
Steel fibers in reinforced concrete increase the performance of slab-column connection once they increase ductility and energy absorption capacity of the concrete. The use of fibers in flat slabs may increase strength and change the mode of failure.
T. H. MUSSE   +4 more
doaj   +1 more source

A Review on Numerical Analysis of RC Flat Slabs Exposed to Fire

open access: yesTikrit Journal of Engineering Sciences, 2020
This paper aims at presenting and discussing the numerical studies performed to estimate the mechanical and thermal behavior of RC flat slabs at elevated temperature and fire.
Hanadi F. Naji   +2 more
doaj   +3 more sources

Experimental work of effect of openings on the post-tensioned flat slab

open access: yesFracture and Structural Integrity
This study aims to evaluate the effect of various parameters on the behavior of the reinforced concrete flat slabs and the contribution of each design element in the punching shear strength.
Amal Zamrawi   +3 more
doaj   +1 more source

Parametric Study for Behavior of the Punching Shear Capacity of Flat Slab Without Shear Reinforcement by The Selected Design Codes

open access: yesEurasian Journal of Science and Engineering, 2023
The system of the flat slab is widely used for the construction of structures because it has economic and functional advantages. However, a flat slab has some disadvantages as punching shear problem occurs by shear force concentrations around the column,
Hawar Hasan Jasim
doaj   +1 more source

Punching shear strength of waffle flat slabs

open access: yesRevista IBRACON de Estruturas e Materiais, 2021
This research aimed to compare the ultimate load of 10 waffle flat slabs with different sizes of solid area and spacing between ribs. For this, a non-linear computational simulation of the slabs was carried out until their failure using the engineering ...
Ricardo José Carvalho Silva   +4 more
doaj   +1 more source

Normal‐Appearing White Matter Injury Mediates Chronic Deep Venous Hypoxia and Disease Progression in Multiple Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore how cerebral hypoxia and Normal‐Appearing White Matter (NAWM) integrity affect MS lesion burden and clinical course. Methods Seventy‐nine MS patients, including 13 clinically isolated syndrome (CIS) patients and 66 relapsing–remitting multiple sclerosis (RRMS) patients, and 44 healthy controls (HCs) were recruited from ...
Xinli Wang   +8 more
wiley   +1 more source

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