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A preliminary experimental study on vibration responses of foamed concrete composite slabs

Rum, R. H. M. and M. Jaini, Z. and Abd Ghaffar, N. H. and Abdol Rahman, Mohd Nasrull (2017) A preliminary experimental study on vibration responses of foamed concrete composite slabs. In: Global Congress on Construction, Material and Structural Engineering 2017 (GCoMSE2017), 28–29 August 2017, Johor Bahru, Malaysia.

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Abstract

In recent years, composite slab has received utmost demand as a floor system in the construction industry. The composite slab is an economical type of structure and able to accelerate the construction process. Basically, the composite slab can be casting by using a combination of corrugated steel deck and normal concrete in which selfweight represents a very large proportion of the total action. Therefore, foamed concrete become an attractive alternative to be utilized as a replacement of normal concrete. However, foamed concrete has high flexibility due to the presence of large amount of air-void and low modulus elasticity. It may result in vibration responses being greater. Hence, this experimental study investigates the vibration responses of composite slab made of corrugated steel deck and foamed concrete. The specimens were prepared with dimension of 750mm width, 1600mm length and 125mm thickness. The hammer-impact test was conducted to obtain the acceleration-time history. The analysis revealed that the first natural frequency is around 27.97Hz to 40.94Hz, while the maximum acceleration reaches 1.31m/s2 to 1.88m/s2. The first mode shape depicts normal pattern and favourable agreement of deformation.

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials
Divisions: Faculty of Civil and Environmental Engineering > Department of Structural and Material Engineering
Depositing User: Mr. Mohammad Shaifulrip Ithnin
Date Deposited: 23 Jun 2019 06:54
Last Modified: 04 Nov 2019 04:30
URI: http://eprints.uthm.edu.my/id/eprint/11616
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