Out of plane behaviour of profiled steel sheet dry board (PSSDB) square panel
Profiled steel sheet dry board as a floor slab and it is a new innovation of composite slab structure in construction industry. It is consists of profiled steel sheet, dry board and screw as a connector. This study is to investigate the behavior of profiled steel sheet dry board (PSSDB) square pa...
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| Format: | Thesis |
| Language: | English |
| Published: |
Universiti Malaysia Sarawak, UNIMAS
2009
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| Online Access: | http://ir.unimas.my/4553/ http://ir.unimas.my/4553/1/OUT%20OF%20PLANE%20BEHAVIOUR%20OF%20PROFILED%20STEEL%20SHEET%20DRY%20BOARD%20%28PSSDB%29%20SQUARE%20PANEL%2824pgs%29.pdf |
| Summary: | Profiled steel sheet dry board as a floor slab and it is a new innovation of
composite slab structure in construction industry. It is consists of profiled steel sheet,
dry board and screw as a connector. This study is to investigate the behavior of
profiled steel sheet dry board (PSSDB) square panel. Plywood was chosen as dry
board, SDP – 51 chosen as profiled steel sheet and self-drilling and self-tapping
screw is used for connector. The component material was selected from the local
market. This study consists of two part of analysis which is the theoretical analysis
study for deflection of PSSDB and the experimental study for deflection of PSSDB
at center point load mid span. Vibration test is also conducted in experimental study
to investigate the damping effect of PSSDB. In theoretical analysis study, slip and
strain at everywhere of connection between plywood and steel sheet is zero and
assumed the plane section remains plane. This situation is knows as full interaction.
The transformed section method was used to analyses PSSDB since it created from
different material as raw material. The result of analysis pointed out that the
deflection of PSSDB is increase when the load pointed on the PSSDB was increased.
From experiment study, the first deflection was 1.86 mm at 1.55 kN. The maximum
deflection was 47.83 mm at 21.7 kN. It was found that, damping ratio for the flooring
system is 0.00045. A natural frequency, fn was 86 Hz and damped frequency was
85.9 Hz. The specimen stiffness was 26.78x 106 N/m. The value of critical damping
coefficient and actual damping coefficient was respectively 99110.56 Ns/m and
44.60 Ns/m. |
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