Shear in reinforced concrete slabs-Experimental investigations in the effective shear width of one-way slabs under concentrated loads and with different degrees of rotational restraint

2017 ◽  
Vol 19 (1) ◽  
pp. 36-48 ◽  
Author(s):  
Karin Reissen ◽  
Martin Classen ◽  
Josef Hegger
Keyword(s):  
Reinforced Concrete ◽  
Experimental Investigations ◽  
Concrete Slabs ◽  
Concentrated Loads ◽  
Reinforced Concrete Slabs ◽  
Rotational Restraint

Extended Strip Model for Reinforced Concrete Slabs under Concentrated Loads

2017 ◽  
Vol 114 (2) ◽  
Author(s):  
Eva O. L. Lantsoght ◽  
Cor van der Veen ◽  
Ane de Boer ◽  
Scott D. B. Alexander
Keyword(s):  
Reinforced Concrete ◽  
Concrete Slabs ◽  
Concentrated Loads ◽  
Reinforced Concrete Slabs

Numerical Analysis of the Influence of the Parameter of Ductility of Reinforcing Steel on the Behaviour of Narrow Three-Span Reinforced Concrete Slabs from the Point of View of Experimental Investigations

2015 ◽  
Vol 769 ◽  
pp. 133-138
Author(s):  
Mirosław Wieczorek
Keyword(s):  
Reinforced Concrete ◽  
Numerical Analysis ◽  
Laboratory Tests ◽  
Numerical Models ◽  
Material Model ◽  
Point Of View ◽  
Experimental Investigations ◽  
Concrete Slabs ◽  
Building Structures ◽  
Reinforced Concrete Slabs

In the time of exploitation of building structures frequently situations do occur, in which due to failures they are exposed to much higher loads than originally predicted. The subject matter of the performed investigations and a numerical analysis are models of four narrow reinforced concrete slabs with the dimensions 7140×500×190 mm. The paper presents the results of the numerical analysis, the aim of which was to reflect and to provide detailed information about phenomena occurring in the course of laboratory tests. Numerical models were constructed according to the system ANSYS, applying volumetric elements SOLID65 and bars LINK8. In order to determine the relation σ-ε of steel an isotropic model of strengthening in the system ANSYS was used, constructed by Misses. The behaviour of concrete was represented by the material model Concrete. The parameters applied in the material models had been obtained in laboratory tests of the material. The paper quotes the results of calculations compared with the results obtained in laboratory tests.

scholarly journals FLEXURAL CAPACITY AND STIFFNESS OF MONOLITHIC BIAXIAL HOLLOW SLABS

2014 ◽  
Vol 20 (5) ◽  
pp. 693-701 ◽  
Author(s):  
Juozas Valivonis ◽  
Bronius Jonaitis ◽  
Robertas Zavalis ◽  
Tomas Skuturna ◽  
Arnoldas Šneideris
Keyword(s):  
Numerical Simulation ◽  
Reinforced Concrete ◽  
Cross Section ◽  
Theoretical Calculations ◽  
Experimental Tests ◽  
Experimental Investigations ◽  
Concrete Slabs ◽  
Flexural Capacity ◽  
Reinforced Concrete Slabs ◽  
New Type

The article presents a research on flexural behaviour of hollow monolithic reinforced concrete slabs. It focuses on the results of experimental investigation into full-size hollow reinforced concrete slabs and analyses their flexural capacity and stiffness. The self-weight of the slabs directly depends on the shape and number of hollows. An increase in the hollowness of a slab significantly reduces the load caused by self-weight. This allows increasing the estimated length of the slab under the same payload. An increase in the amount of hollows of the slab changes the stiffness of the slab cross-section that has a direct impact on slab deflection. Considering the shape of the slab cross-section, theoretical calculations of the flexural capacity and deflection of experimental slabs were made. The design of a new type of slabs and variations in different parameters of the slab experience difficulties in conducting a large amount of experimental tests. Therefore, the initial analysis may apply to numerical simulation. The paper describes the principles of designing a numerical model. The calculations were made using DIANA software. The stiffness and flexural capacity of the hollow slabs were established employing numerical simulation compared to the results of experimental investigations. The findings indicate that numerical simulation can be applied for analysing the stress state of the examined structures.

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