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Luoyang QIBR Bearing Co.,LtdCall us : +86 − −(0379)63968877 // Email us : [email protected]
2017-10-16The punching shear capacity of steel fibre reinforced concrete (SFRC) slabs without traditional steel bar reinforcement was investigated by conducting central point-load tests on twelve square slabs The test parameters covered fibres with different multi-hook ends concrete compressive strength reinforcing index and slab thickness
2019-7-11punching shear capacity of steel fiber reinforced concrete flat slabs showed that most tests were performed with slab thicknesses not relevant to practice For this reason several tests were carried out to investigate the influence of the following factors: practice relevant slab thickness steel fibre
The present experimental work investigates the applicability and performance of a new strengthening method for concrete slabs intended to increase their punching resistance using combination layers of steel wire mesh with epoxy attached to the concrete slabs' tension face Six simply supported square reinforced concrete slab specimens were tested up to failure under a central concentrated load
2015-7-221 PUNCHING SHEAR RESISTANCE OF STEEL FIBER REINFORCED CONCRETE FLAT SLABS L NGUYEN-MINH1* M ROVŇK2† T TRAN-QUOC3 and K NGUYEN-KIM4 1 3 4 Division of Structural Design Faculty of Civil Engineering HCMUT Vietnam 2 Institute of Technical and Technological Safety University of Security Management Slovakia ABSTRACT This paper deals with behavior and capacity
This paper deals with the experimental and theoretical evaluation of punching shear capacity of steel fiber reinforced concrete (SFRC) slab–column connections Five experimental specimens with a thickness of 160 mm different fiber volume contents (0 1 0 and 1 5%) and different flexural reinforcement ratios (0 75 and 1 5%) have been tested
Behaviour of reinforced concrete members under fire conditions Main content Within the scope of the revision of EN 1992-1-2 this project dealt with various topics for the design of reinforced concrete members in the event of fire: (i) the simplified design methods for bending as well as bending and normal action (ii) the rotation capacity and
The ultimate strength of reinforced concrete slabs is frequently governed by the punching shear capacity which may be increased with addition of traditional fitments such as reinforcing steel headed studs or shear heads In addition to these traditional methods of strengthening against punching steel fibre reinforcement has proved to be an effective and viable alternative
The present experimental work investigates the applicability and performance of a new strengthening method for concrete slabs intended to increase their punching resistance using combination layers of steel wire mesh with epoxy attached to the concrete slabs' tension face Six simply supported square reinforced concrete slab specimens were tested up to failure under a central concentrated load
Behaviour of reinforced concrete members under fire conditions Main content Within the scope of the revision of EN 1992-1-2 this project dealt with various topics for the design of reinforced concrete members in the event of fire: (i) the simplified design methods for bending as well as bending and normal action (ii) the rotation capacity and
In addition to these traditional methods of strengthening against punching steel fibre reinforcement has proved to be an effective and viable alternative The addition of fibres into the concrete improves not only the shear behaviour but also the deformation capacity of reinforced concrete slabs
Apparently the absence of standards is the main reason However the combination of steel fibre reinforced concrete and conventional reinforcement has in many researches shown to emphasize good bearing capacrty In this thesis two punching shear capacity models have been analysed and adapted on 136 test slabs perfomred by previous researchers
2020-8-7Description FIB BULLETIN NO 81 Title: Punching shear of structural concrete slabs Category: Technical Report Year: 2017 Pages: 378 Format approx DIN A4 (210x297 mm) ISBN: 978-2-88394-121-2 Abstract: fib Bulletin 81 reports the latest information available to researchers and practitioners on the analysis design and experimental evidence of punching shear of structural concrete
2015-12-15Punching shear analysis of reinforced concrete flat plates Osman M Ramadan1) *Kamal G Metwally2) and Gehad S Younis3) 1) 3) Department of Structural Engineering Cairo University Cairo Egypt 2) Department of Civil Engineering Beni-Suef University Beni-Suef Egypt 1) omoramadanyahoo ca 2) kghamerygmail ABSTRACT This paper presents the results of
The present experimental work investigates the applicability and performance of a new strengthening method for concrete slabs intended to increase their punching resistance using combination layers of steel wire mesh with epoxy attached to the concrete slabs' tension face Six simply supported square reinforced concrete slab specimens were tested up to failure under a central concentrated load
Behaviour of reinforced concrete members under fire conditions Main content Within the scope of the revision of EN 1992-1-2 this project dealt with various topics for the design of reinforced concrete members in the event of fire: (i) the simplified design methods for bending as well as bending and normal action (ii) the rotation capacity and
2019-7-11punching shear capacity of steel fiber reinforced concrete flat slabs showed that most tests were performed with slab thicknesses not relevant to practice For this reason several tests were carried out to investigate the influence of the following factors: practice relevant slab thickness steel fibre
Shear and punching resistance of steel fibre reinforced concrete slabs Therefore the aim of this thesis is to show how the shear and punching capacity for SFRC slabs are determined according to six different national guidelines or standards and to analyse how the estimated capacity varies between these guidelines/standards Furthermore
2019-10-30A total of 91 shear test data on steel-fiber-reinforced concrete slab–column connection were compared to the analysis results and the proposed model provided a good accuracy on estimating the punching shear strength of the steel-fiber-reinforced concrete flat slabs
The article handles potential approaches to design and determination of total load capacity of foundation slabs and floors The research is focused on punching shear failure of reinforced ground supported slab The article presents detailed results of the experiment made and advanced numerical modelling based on nonlinear analysis and application of fracture-plastic model
This paper proposes a neural networks-based method to predict the shear capacity of steel fiber-reinforced concrete (SFRC) elements without mild steel shear reinforcement based on the available data in the literature To derive the ANN-based expression we did the following: We used a database with 430 datapoints from the literature
2018-7-20punching shear capacity of steel fiber reinforced concrete flat slabs showed that most tests were performed with slab thicknesses not relevant to practice For this reason several tests were carried out to investigate the influence of the following factors: practice relevant slab thickness steel fibre
Shear and punching resistance of steel fibre reinforced concrete slabs Therefore the aim of this thesis is to show how the shear and punching capacity for SFRC slabs are determined according to six different national guidelines or standards and to analyse how the estimated capacity varies between these guidelines/standards Furthermore
2018-6-16A data-set which contains actual tests of FRP-reinforced concrete slabs is utilised to construct and verify the proposed approach The contribution of this research is to establish a hybrid machine method based on the LS-SVM and FA algorithms for meliorating the prediction accuracy of FRP-reinforced slabs' ultimate punching shear capacity
Using Fibre Reinforced Polymer (FRP) bars to reinforce two-way concrete slabs can extend the service life reduce maintenance cost and improve-life cycle cost efficiency FRP reinforcing bars are more environmentally friendly alternatives to traditional reinforcing steel Shear behaviour of reinforced concrete structural members is a complex phenomenon that relies on the development of
2020-8-16This capacity is at the load level 283 9kN (299 0kN for 35kg/m3 respectively) where the ultimate tensile strain in steel fibre reinforced concrete (25‰) is reached The tight peak in the tension part of the diagram works as a "crack localizator"
The punching shear provisions of two code of practises CSA S806 (Canadian Standards 2012) and JSCE (JSCE et al 1997) reasonably predicted the load capacity of GFRP reinforced concrete flat slab whereas ACI 440 (ACI Committee 440 2015) showed very conservative load capacity prediction
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