The structural behaviour of low - rise residential building due to wind and seismic loads
Buildings are subjected to natural hazards such as wind and seismic, and when subjected too, will have an effect on the overall behaviour of the structure. This study describes the effect of wind and seismic loads towards the structural behaviour of low rise residential building in Timur Leste. Vari...
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| Format: | Thesis |
| Published: |
2008
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/833/ http://eprints.uthm.edu.my/833/1/24_Pages_from_THE_STRUCTURAL_BEHAVIOUR_OF_LOW%2DRISE_RESIDENTIAL_BUILDING_DUE_TO_WIND_AND_SEISMIC_LO.pdf |
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| Summary: | Buildings are subjected to natural hazards such as wind and seismic, and when
subjected too, will have an effect on the overall behaviour of the structure. This study
describes the effect of wind and seismic loads towards the structural behaviour of low
rise residential building in Timur Leste. Various bracing system design were proposed to
the building and analytical results were recorded and observed. Wind data velocity (V)
was taken at 33 m/s in open country. The data was collected at location for wind and
seismic on high intensities for a 20 year cycle. For the simplicity of illustrating the
design, the study focuses on the analysis of a two and three dimensional three bay fourstorey
moment resisting frames on rigid foundation. Lateral wind load was determined
in accordance to BS CP3 Chapter V part 2 1972 standard. Seismic deign load on
building was obtained at Peak Ground Acceleration (PGA) for low, medium and high
ground motion on building in accordance with UBS 1997. The analysis of the building
was conducted using STAAD Pro 2004 to identify critical members and elements of the
low rise building under shear, displacement and moments due to wind and seismic
loading. In applying wind and seismic load from side and front of building, large values
of displacement, shear and moment was observed at critical points of the structure. By
providing bracing system types V and X to the structure, less displacement with lower
shear and moment values for the building component was achieved. Result shows that
for structures with suitable bracing system, an overall reduction of about 70% in
displacement; 50% in moment and 33.5% in shear was observed. This implies that by
applying the bracing system, the rigidity and stability of the structure has increased and
the risk of collapse has substantially reduced. |
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