scholarly journals Experimental Data Analysis using Computational Numerical Analysis on the Response of One-way Reinforced Concrete Slab under Blast Loading

2016 ◽  
Vol 19 (4) ◽  
pp. 424-434
Author(s):  
Hun Ji
Keyword(s):  
Experimental Data ◽  
Reinforced Concrete ◽  
Data Analysis ◽  
Numerical Analysis ◽  
Concrete Slab ◽  
Blast Loading ◽  
Reinforced Concrete Slab ◽  
Experimental Data Analysis

scholarly journals Numerical Analysis of Reinforced Concrete Slab with Subsoil

2020 ◽  
Vol 16 (1) ◽  
pp. 107-118 ◽  
Author(s):  
Marie Kozielova ◽  
Zuzana Marcalikova ◽  
Pavlina Mateckova ◽  
Oldrich Sucharda
Keyword(s):  
Reinforced Concrete ◽  
Numerical Analysis ◽  
Nonlinear Analysis ◽  
Modulus Of Elasticity ◽  
Concrete Structure ◽  
Concrete Slab ◽  
Research Area ◽  
Reinforced Concrete Slab ◽  
Reinforced Concrete Slabs ◽  
Real Behavior

AbstractThe article deals with the interaction of a reinforced concrete slab with subsoil. The paper contains a non-linear analysis based on an experiment of reinforced concrete slabs with dimensions 2000 x 2000 mm and thickness 150 mm. A steel mesh with a diameter of 8/100 mm was used as reinforcement. The calculations and analysis are complemented by a comparison with EC2 design approaches. The research area combines the design of concrete structure and geotechnical tasks. The real behavior of the concrete structure with subsoil is considered for the analysis for advanced design. The selected computational approach of nonlinear analysis allows to capture the change of stiffness after the creation of cracks and modelling the shear punch failure of the slab - the collapse of the structure. The paper focuses on comparing the experiment with the numerical model in select loaded states for various input parameters of subsoil. Based on the experiment and numerical analysis the failure mechanism was determined. It was the punching of the slab. The calculations and the experiment verified that the critically controlled perimeter is at a distance of 1d. The effect of the modulus of elasticity on the slab punch mechanism was verified. In case of low modulus of subsoil, the load-bearing capacity of the slab is significantly reduced. The punching mechanism is influenced not only by the mechanical properties of the concrete but also by the properties of the subsoil. The performed parametric study also verified the influence of the size the nominal cover reinforcement depending on the modulus of elasticity of the subsoil. The deformation variant finite element method and a 3D computational model were used for numerical modelling. Nonlinear analysis was based on the Newton-Rapson method.

Dynamic Response Test of Reinforced Concrete Slab under Blast Loading

2014 ◽  
Vol 507 ◽  
pp. 291-294
Author(s):  
Zhi Zhong Li ◽  
De Gao Tang ◽  
Wei Wei Li ◽  
Zhi Fang Yan
Keyword(s):  
Reinforced Concrete ◽  
Dynamic Response ◽  
Concrete Slab ◽  
Peak Load ◽  
Blast Loading ◽  
Reinforcement Ratio ◽  
Empirical Formulas ◽  
Reinforced Concrete Slab ◽  
Time Curve ◽  
Explosion Test

Reinforced concrete panels were tested explosion for reinforced concrete slab in the dynamic response under blast loading. Dimensions of 1300mm×1300mm×50mm plates under different reinforcement ratio were designed. Explosion test was carried out for three different batches of reinforcement ratio reinforced concrete slab in the explosion simulator. The load was calculated using empirical formulas. Blast loading time curve was obtained by the explosion test and the correctness of the numerical simulation method was verified. The results indicate that reinforced concrete slab under blast loading is different from static damage destruction. Diagonal cracks appear on plat under the blast loading destroyed. When the peak load is large, a large square cracks plate was appeared in the middle of the plate and accompanied diagonal cracks. When the peak load is small, diagonal cracks develop fully, square cracks were smaller.

State of the art report on stub girder flooring systems

2021 ◽  
pp. 136943322199248
Author(s):  
Reza Masoudina
Keyword(s):  
Experimental Data ◽  
Reinforced Concrete ◽  
Composite Structures ◽  
State Of The Art ◽  
Concrete Slab ◽  
Continuous Steel ◽  
Steel Beam ◽  
Steel Buildings ◽  
Reinforced Concrete Slab ◽  
Timber Construction

Stub girder flooring systems are a widely used system in modern steel buildings. This type of system is a composite flooring system consisting of a continuous steel beam and a reinforced concrete slab set apart by a series of short, and usually wide, flange parts known as stubs. While many studies and research have been conducted on this system in steel-concrete composite structures, comparable comprehensive research has not been done on Stub girder flooring system for timber construction. This study represents a review on stub girders, and focuses on experimental and analytical works in the area. Finally, pervious researches and experimental data about stub girder flooring system have been collected and summarized in a table format which has been listed parameters in the researches.

scholarly journals CRACKING ANALYSIS OF PRECAST – IN SITU REINFORCED CONCRETE SLAB WITH PLASTIC VOID FORMERS

2022 ◽  
Vol 14 (0) ◽  
pp. 1-5
Author(s):  
Juozas Masėnas
Keyword(s):  
Experimental Study ◽  
Reinforced Concrete ◽  
Numerical Analysis ◽  
Numerical Model ◽  
Concrete Slab ◽  
Shear Stiffness ◽  
Reinforced Concrete Slab ◽  
Cracking Pattern

In this article results of experimental and numerical analysis of precast – in situ reinforced concrete slab with plastic void formers are discussed. Slab is composed of precast and in situ concrete layers. Voids are formed inside the slab using spherical plastic void formers. Slab cracking pattern is determined by numerical analysis. Cracking pattern acquired by numerical analysis is compared to cracking pattern determined by experimental study. Shear stiffness in the bond between precast and in situ concrete layers was specified when numerical model was built.

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