Vibration behaviour of pre-stressed precast hollow core floor with concrete topping thickness and boundary condition

In the current design, the usage of lightweight and long-span precast, which is renowned in construction, is prone to the floor serviceability issue, especially in floor vibration. The pre-stressed precast hollow core floor (PPHCF) in a four-storey office building was selected in performing an inves...

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Main Author:	Rahimi, Muhammad Imran
Format:	Thesis
Language:	English English English
Published:	2020
Subjects:	TA401-492 Materials of engineering and construction Mechanics of materials
Online Access:	http://eprints.uthm.edu.my/1027/1/24p%20MUHAMMAD%20IMRAN%20BIN%20RAHIMI.pdf http://eprints.uthm.edu.my/1027/2/MUHAMMAD%20IMRAN%20BIN%20RAHIMI%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/1027/3/MUHAMMAD%20IMRAN%20BIN%20RAHIMI%20WATERMARK.pdf
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spelling	my-uthm-ep.10272021-09-20T07:42:43Z Vibration behaviour of pre-stressed precast hollow core floor with concrete topping thickness and boundary condition 2020-09 Rahimi, Muhammad Imran TA401-492 Materials of engineering and construction. Mechanics of materials In the current design, the usage of lightweight and long-span precast, which is renowned in construction, is prone to the floor serviceability issue, especially in floor vibration. The pre-stressed precast hollow core floor (PPHCF) in a four-storey office building was selected in performing an investigation on floor vibration regarding its properties. The PPHCF is known for its long-span and had longitudinal void along the length, which is made similar to lightweight concrete floor properties. These properties are prone to the floor vibration issue, which are also influenced by its mass and stiffness. The preliminary study on prediction analysis is performed to determine a testing location. Two-floor areas (Area A and Area B) was selected, and a modal vibration analysis was compared from experimental modal analysis (EMA) and Finite Element Analysis (FEA) by using SAP2000 software package. In both analyses, natural floor frequency was found lower than 10Hz, and a correlation between the EMA and FEA is accepted. Thus, the floor was categorised as a low-frequency floor based on floor concrete material limitation. This thesis focused on vibration effects in tackling the low natural frequency with different topping thickness and boundary condition by the parametric study in observing its vibration behaviour pattern. The main issue in the actual design was the boundary condition between the PPHCF and l-beam, which precast is rested on l-beam without any connection to it. This parametric study discussed the mass and stiffness domination effect in different topping thickness and the stiffness effect on each assigned boundary condition. Thus from the parametric study, the boundary condition is more influenced in floor vibration rather than concrete topping thickness. 2020-09 Thesis http://eprints.uthm.edu.my/1027/ http://eprints.uthm.edu.my/1027/1/24p%20MUHAMMAD%20IMRAN%20BIN%20RAHIMI.pdf text en public http://eprints.uthm.edu.my/1027/2/MUHAMMAD%20IMRAN%20BIN%20RAHIMI%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/1027/3/MUHAMMAD%20IMRAN%20BIN%20RAHIMI%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Onn Malaysia Faculty of Civil Engineering and Built Environment
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	TA401-492 Materials of engineering and construction Mechanics of materials
spellingShingle	TA401-492 Materials of engineering and construction Mechanics of materials Rahimi, Muhammad Imran Vibration behaviour of pre-stressed precast hollow core floor with concrete topping thickness and boundary condition
description	In the current design, the usage of lightweight and long-span precast, which is renowned in construction, is prone to the floor serviceability issue, especially in floor vibration. The pre-stressed precast hollow core floor (PPHCF) in a four-storey office building was selected in performing an investigation on floor vibration regarding its properties. The PPHCF is known for its long-span and had longitudinal void along the length, which is made similar to lightweight concrete floor properties. These properties are prone to the floor vibration issue, which are also influenced by its mass and stiffness. The preliminary study on prediction analysis is performed to determine a testing location. Two-floor areas (Area A and Area B) was selected, and a modal vibration analysis was compared from experimental modal analysis (EMA) and Finite Element Analysis (FEA) by using SAP2000 software package. In both analyses, natural floor frequency was found lower than 10Hz, and a correlation between the EMA and FEA is accepted. Thus, the floor was categorised as a low-frequency floor based on floor concrete material limitation. This thesis focused on vibration effects in tackling the low natural frequency with different topping thickness and boundary condition by the parametric study in observing its vibration behaviour pattern. The main issue in the actual design was the boundary condition between the PPHCF and l-beam, which precast is rested on l-beam without any connection to it. This parametric study discussed the mass and stiffness domination effect in different topping thickness and the stiffness effect on each assigned boundary condition. Thus from the parametric study, the boundary condition is more influenced in floor vibration rather than concrete topping thickness.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Rahimi, Muhammad Imran
author_facet	Rahimi, Muhammad Imran
author_sort	Rahimi, Muhammad Imran
title	Vibration behaviour of pre-stressed precast hollow core floor with concrete topping thickness and boundary condition
title_short	Vibration behaviour of pre-stressed precast hollow core floor with concrete topping thickness and boundary condition
title_full	Vibration behaviour of pre-stressed precast hollow core floor with concrete topping thickness and boundary condition
title_fullStr	Vibration behaviour of pre-stressed precast hollow core floor with concrete topping thickness and boundary condition
title_full_unstemmed	Vibration behaviour of pre-stressed precast hollow core floor with concrete topping thickness and boundary condition
title_sort	vibration behaviour of pre-stressed precast hollow core floor with concrete topping thickness and boundary condition
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Faculty of Civil Engineering and Built Environment
publishDate	2020
url	http://eprints.uthm.edu.my/1027/1/24p%20MUHAMMAD%20IMRAN%20BIN%20RAHIMI.pdf http://eprints.uthm.edu.my/1027/2/MUHAMMAD%20IMRAN%20BIN%20RAHIMI%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/1027/3/MUHAMMAD%20IMRAN%20BIN%20RAHIMI%20WATERMARK.pdf
_version_	1747830706931761152

Vibration behaviour of pre-stressed precast hollow core floor with concrete topping thickness and boundary condition

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