Analysis of Natural Frequencies of Voided Biaxial Concrete Slabs

Norbert Jendzelovsky; Kristina Zabakova Vrablova

doi:10.4028/www.scientific.net/KEM.738.15

Paper Titles

Preface, Professor Ján Sobota

Influence of Antisymmetrical Actions at Reinforced Concrete Cable-Stayed Bridge
p.3

Analysis of Natural Frequencies of Voided Biaxial Concrete Slabs
p.15

A Method to Predict the Punching Shear Strength of Flat Slabs with Shear Reinforcement Using a Strut-and-Tie Model
p.25

Response of a Reinforced Concrete Slab to the Suddenly Applied Load
p.36

Nonstationary Thermodynamic Analysis of a Chosen Critical Detail in a Waterproof Concrete Basement Structure Using an Experimentally Verified Model
p.47

An Engineering Heat and Mass Transport Model Utilized for Concrete at Fire
p.58

Numerical Models of Wind Effects on Temperature Loaded Object
p.69

Analysis of Creep Effects in a Concrete Beam Using Various Software
p.79

HomeKey Engineering MaterialsKey Engineering Materials Vol. 738Analysis of Natural Frequencies of Voided Biaxial...

Analysis of Natural Frequencies of Voided Biaxial Concrete Slabs

Abstract:

Voided slabs using voids formed by permanent fillers or removable forms have been used in reinforced concrete floor systems for more than 100 years. In this article we will focus on the natural frequency of voided biaxial slabs system Cobiax. Cobiax void former modules are synthetic hollow spheres or rotational ellipsoids mounted in the relevant spaces between the upper and lower reinforcement. We have analyzed the slabs of different thicknesses with adequate void former modules and spans following the manufacturer's recommendations. All models were considered as simply supported slabs. Natural frequencies calculated using simplified analytical methods have been compared with those obtained by numerical methods. Numerical calculation was done using the 2D elements with reduced properties and using the accurate 3D model of a structure.

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Periodical:

Key Engineering Materials (Volume 738)

Pages:

15-24

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.738.15

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Online since:

June 2017

Authors:

Norbert Jendzelovsky*, Kristina Zabakova Vrablova

Keywords:

Cobiax, Finite Element Method (FEM), First Natural Frequency, Simplified Calculating Methods

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