Natural Frequency of Lightweight Composite Slabs Based on Experimental Study and Numerical Modelling
Recently, lightweight composite slabs have become increasingly popular. Lightweight composite slabs are an innovation that provides a better and more convenient construction method for floor systems. Under dynamic loads, lightweight composite slabs may experience meagre inertia forces due to poor st...
Published in: | International Journal of Integrated Engineering |
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2023
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Online Access: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85185289400&doi=10.30880%2fIJIE.2023.15.06.010&partnerID=40&md5=933b1eeecf6f86199ff07e1c70cdb62c |
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2-s2.0-85185289400 Jaini Z.M.; Sugiura K.; Kudus S.A.; Rum R.H.M.; Hakim S.J.S.; Ghafar N.H.A. Natural Frequency of Lightweight Composite Slabs Based on Experimental Study and Numerical Modelling 2023 International Journal of Integrated Engineering 15 6 10.30880/IJIE.2023.15.06.010 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85185289400&doi=10.30880%2fIJIE.2023.15.06.010&partnerID=40&md5=933b1eeecf6f86199ff07e1c70cdb62c Recently, lightweight composite slabs have become increasingly popular. Lightweight composite slabs are an innovation that provides a better and more convenient construction method for floor systems. Under dynamic loads, lightweight composite slabs may experience meagre inertia forces due to poor stiffness or low mass. Compared to conventional composite slabs, lightweight composite slabs are 40% lighter and more susceptible to structural resonance. Therefore, the vibration behaviour must be controlled to avoid discomfort issues. This study investigates the natural frequency of lightweight composite slabs through experimental study and numerical modelling. In the experimental study, lightweight composite slabs were prepared for the hammer-impact test. The slab thickness ranges from 100 mm to 200 mm. In numerical modelling, lightweight composite slabs were modelled in SAP2000 using a unique technique called the simplified equivalent plate model. The effective material properties were derived from the rule of mixtures and depend exclusively on elastic properties with strength characteristics. The results of the experimental study and numerical modelling agree positively. The natural frequency decreased with slab thickness, signifying that the natural frequency is dominated by mass rather than stiffness. Overall, the natural frequency of lightweight composite slabs is around 27.23Hz to 31.45Hz. © 2023, Universiti Tun Hussein Onn Malaysia Publisher’s Office. All rights reserved. Penerbit UTHM 2229838X English Article All Open Access; Bronze Open Access |
author |
Jaini Z.M.; Sugiura K.; Kudus S.A.; Rum R.H.M.; Hakim S.J.S.; Ghafar N.H.A. |
spellingShingle |
Jaini Z.M.; Sugiura K.; Kudus S.A.; Rum R.H.M.; Hakim S.J.S.; Ghafar N.H.A. Natural Frequency of Lightweight Composite Slabs Based on Experimental Study and Numerical Modelling |
author_facet |
Jaini Z.M.; Sugiura K.; Kudus S.A.; Rum R.H.M.; Hakim S.J.S.; Ghafar N.H.A. |
author_sort |
Jaini Z.M.; Sugiura K.; Kudus S.A.; Rum R.H.M.; Hakim S.J.S.; Ghafar N.H.A. |
title |
Natural Frequency of Lightweight Composite Slabs Based on Experimental Study and Numerical Modelling |
title_short |
Natural Frequency of Lightweight Composite Slabs Based on Experimental Study and Numerical Modelling |
title_full |
Natural Frequency of Lightweight Composite Slabs Based on Experimental Study and Numerical Modelling |
title_fullStr |
Natural Frequency of Lightweight Composite Slabs Based on Experimental Study and Numerical Modelling |
title_full_unstemmed |
Natural Frequency of Lightweight Composite Slabs Based on Experimental Study and Numerical Modelling |
title_sort |
Natural Frequency of Lightweight Composite Slabs Based on Experimental Study and Numerical Modelling |
publishDate |
2023 |
container_title |
International Journal of Integrated Engineering |
container_volume |
15 |
container_issue |
6 |
doi_str_mv |
10.30880/IJIE.2023.15.06.010 |
url |
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85185289400&doi=10.30880%2fIJIE.2023.15.06.010&partnerID=40&md5=933b1eeecf6f86199ff07e1c70cdb62c |
description |
Recently, lightweight composite slabs have become increasingly popular. Lightweight composite slabs are an innovation that provides a better and more convenient construction method for floor systems. Under dynamic loads, lightweight composite slabs may experience meagre inertia forces due to poor stiffness or low mass. Compared to conventional composite slabs, lightweight composite slabs are 40% lighter and more susceptible to structural resonance. Therefore, the vibration behaviour must be controlled to avoid discomfort issues. This study investigates the natural frequency of lightweight composite slabs through experimental study and numerical modelling. In the experimental study, lightweight composite slabs were prepared for the hammer-impact test. The slab thickness ranges from 100 mm to 200 mm. In numerical modelling, lightweight composite slabs were modelled in SAP2000 using a unique technique called the simplified equivalent plate model. The effective material properties were derived from the rule of mixtures and depend exclusively on elastic properties with strength characteristics. The results of the experimental study and numerical modelling agree positively. The natural frequency decreased with slab thickness, signifying that the natural frequency is dominated by mass rather than stiffness. Overall, the natural frequency of lightweight composite slabs is around 27.23Hz to 31.45Hz. © 2023, Universiti Tun Hussein Onn Malaysia Publisher’s Office. All rights reserved. |
publisher |
Penerbit UTHM |
issn |
2229838X |
language |
English |
format |
Article |
accesstype |
All Open Access; Bronze Open Access |
record_format |
scopus |
collection |
Scopus |
_version_ |
1812871797534621696 |