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The structural performance of precast lightweight foamed concrete panel (PLFP) with double shear connectors

Samsuddin, Suryani (2015) The structural performance of precast lightweight foamed concrete panel (PLFP) with double shear connectors. Masters thesis, Universiti Tun Hussein Onn Malaysia.

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Abstract

Traditional cast in situ construction has been a common practice adopted by building industry in this country. This process could not meet the huge demand on affordable housing which is the major issue now because it requires large number of workers, massive casting and erection work, and longer construction time. As a solution to this, a precast system needs to be innovated as an alternative to this traditional system. Current research has been focusing on precast panel system made of conventional concrete. Therefore, this research investigated the structural behaviour of single and two connected Sandwiched Precast Foamed Concrete Panel (PLFP). Eight single PLFP and three sets of connected PLFP panels were cast using foamed concrete as the wythe and polystyrene as the core layer. The panels were strengthened with steel bar reinforcement embedded in both wythes which were connected to each other by the steel shear truss connectors. Single PLFP panels were tested under axial load while connected PLFP panels were tested under flexural load test. The results were analyzed in term of the panel’s ultimate load, crack pattern and mode of failure, load-deflection and load-strain profiles. It was found that the ultimate load recorded in single PLFP panels from experiment showed good agreement with the values from previous research. Connected PLFP panels were able to sustain slightly lower ultimate load compared to single PLFP panel. The percentage difference between these ultimate load values is about 14%. The value of ultimate load recorded for single and connected PLFP panels were 171 kN and 147 kN, respectively. For both single and connected PLFP panels, it was observed that ultimate load, crack pattern and failure mode, load-deflection and load-strain profiles were significantly influenced by the panel’s slenderness ratio. Finite element analysis using LUSAS software is also carried out to study the effect of slenderness ratio on ultimate load. It was observed that the difference value between FEM and Experimental for single and connected PLFP panels are in a good agreement which recorded 4.5% and 5.8%, respectively.

Item Type: Thesis (Masters)
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA630-695 Structural engineering (General)
Depositing User: Normajihan Abd. Rahman
Date Deposited: 17 May 2016 06:35
Last Modified: 17 May 2016 06:35
URI: http://eprints.uthm.edu.my/id/eprint/8011
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