Modelling of concrete topping thickness effects on the vibration behaviour for lvl-concrete composite floor (LCC)

Global Congress on Construction, Material and Structural Engineering 2017

材料科学;土木建筑工程

Abd Ghafar, N.H.^1,2 ; Sahban, N.M.^1

Fakulti Kejuruteraan Awam Dan Alam Sekitar, Universiti Tun Hussien Onn Malaysia, Parit Raja, Johor, Batu Pahat, Malaysia^1

Jamilus Research Centre, Universiti Tun Hussien Onn Malaysia, Parit Raja, Johor, Batu Pahat, Malaysia^2

关键词: Concrete composites;    Concrete floor;    Floor systems;    Laminated veneer lumber;    Optimum value;    Thickness effect;    Timber joists;    Vibration behaviours;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/271/1/012096/pdf
DOI  :  10.1088/1757-899X/271/1/012096

来源: IOP

【 摘 要 】

This research was conducted on 2 m LVL - concrete composite (LCC) floor consisting of two parts between concrete floor and laminated veneer lumber (LVL) timber joist. The floor system was model using SAP 2000 software package. The aim of this research to study the vibration behaviour of the LCC floor with different concrete topping thickness which 25 mm, 65 mm and from 20 mm until 200 mm in every 20 mm interval. Natural frequency decision produced through SAP 2000 in thickness 25 mm and 65 mm is 57.45 Hz and 57.19 Hz. In thickness from 20 mm until 200 mm in every 20 mm interval, optimum value which found is during thickness reach 65 mm. For concrete topping below 65 mm thickness, the mass will be domain the behavior of the floor. When concrete topping increased more than 65 mm, the behavior of the floor will be domain by floor stiffness.