Wan Mohd Sabki Wan Omar, Dr.This page provides access to scholarly publications by UniMAP Faculty members and researchers.http://dspace.unimap.edu.my:80/xmlui/handle/123456789/411462024-03-28T14:07:27Z2024-03-28T14:07:27ZAssessment of reinforced concrete building with soil structure interaction effect under vertical earthquakeSiti Marissa, Abd RahimMohd Zulham Affandi, Mohd ZahidWan Mohd Sabki, Wan OmarMohd Asri, Ab RahimFaisal, Adehttp://dspace.unimap.edu.my:80/xmlui/handle/123456789/412452016-04-01T08:23:52Z2016-01-01T00:00:00ZAssessment of reinforced concrete building with soil structure interaction effect under vertical earthquake
Siti Marissa, Abd Rahim; Mohd Zulham Affandi, Mohd Zahid; Wan Mohd Sabki, Wan Omar; Mohd Asri, Ab Rahim; Faisal, Ade
In past investigation, most of studies on seismic analysis for soil structure interaction effect are small and generally design building were considered to be fixed at their support. In actual condition, flexibility of the bases soil medium were generate some deformation in foundation element and will be shows detrimental effects on the system behavior. This can make a beneficial result on the overall structure response if flexible bases were considered during seismic analysis. The present study attempts to compare the behavior of reinforced concrete medium rise building with soil structure interaction effect and fixed bases under vertical earthquake. The eight-storey irregular 2D frame models were subjected to ground motion from 4 stations with peak ground acceleration ratios vertical to horizontal (V/H) between ranges 0.95 to 1.16. During simulation of simplified model, Impedance Function has been applied to calculate the stiffness of such spring. The structural response quantities were considered displacement histories and axial load variation. The result shows that the consideration of soil structure interaction effect may increase such response behavior.
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2016-01-01T00:00:00ZVariations in embodied energy and carbon emission intensities of construction materialsWan Mohd Sabki, Wan OmarJeung-Hwan, DohKriengsak, Panuwatwanichhttp://dspace.unimap.edu.my:80/xmlui/handle/123456789/412442016-04-01T07:26:23Z2014-11-01T00:00:00ZVariations in embodied energy and carbon emission intensities of construction materials
Wan Mohd Sabki, Wan Omar; Jeung-Hwan, Doh; Kriengsak, Panuwatwanich
Identification of parameter variation allows us to conduct more detailed life cycle assessment (LCA) of energy and carbon emission material over their lifecycle. Previous research studies have demonstrated that hybrid LCA (HLCA) can generally overcome the problems of incompleteness and accuracy of embodied energy (EE) and carbon (EC) emission assessment. Unfortunately, the current interpretation and quantification procedure has not been extensively and empirically studied in a qualitative manner, especially in hybridising between the process LCA and I-O LCA. To determine this weakness, this study empirically demonstrates the changes in EE and EC intensities caused by variations to key parameters in material production. Using Australia and Malaysia as a case study, the results are compared with previous hybrid models to identify key parameters and issues. The parameters considered in this study are technological changes, energy tariffs, primary energy factors, disaggregation constant, emission factors, and material price fluctuation. It was found that changes in technological efficiency, energy tariffs and material prices caused significant variations in the model. Finally, the comparison of hybrid models revealed that non-energy intensive materials greatly influence the variations due to high indirect energy and carbon emission in upstream boundary of material production, and as such, any decision related to these materials should be considered carefully.
Link to publisher's homepage at http://www.sciencedirect.com/
2014-11-01T00:00:00Z