A STUDY ON PERFORMANCE OF EXISTING BUILDING
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A STUDY ON PERFORMANCE OF EXISTING BUILDING
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A STUDY ON PERFORMANCE OF EXISTING BUILDING

Author: MAUNG THIHA KYAW | Size: 5.74 MB | Format: PDF | Quality: Original preprint | Publisher: YANGON TECHNOLOGICAL UNIVERSITY | Year: JANUARY 2007 | pages: 184

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ABSTRACT
Within previous decades, the seismic effects had not been considered when designed and constructed the buildings.
But now, due to the development of technology and knowledge, the seismic effects had been taken into consideration in design and construction of the structures.
This study deals with the building which was not considered the seismic effects and is reviewed with subjected to moderate seismic forces to know the performance of the building.
In this study, twelve-storey reinforced concrete building (ordinary moment-resisting frame) was considered to investigate the effects of moderate earthquake but substructure analysis was not considered.
First, the three dimensional model was analysed and designed under gravity load and wind load.
And then, the same model was reanalysed with the effects of moderate seismic forces (zone 2A).
Repeated analyses for this structure were considered for seismic forces (zone 2A) in both factored and unfactored load conditions.
For analysis and design of without seismic effect, ten load combinations were considered and then twenty-six load combinations with seismic effects.
Finally, analysis results in main structural components such as axial force and bending moments for columns, shear, torsion and bending moments for beams were compared for the performance of ordinary moment-resisting frame under three different types of analytical conditions described in above.
Moreover, storey drifts, storey displacement and storey shear were also compared in this study.
Structural analysis was carried out by using Extended Three Dimensional Analysis of Building Systems (ETABS) version 8.4.8 software.
Load assumptions and combinations were considered according to the provisions of Uniform Building Code – UBC (1997) and American Concrete Institute -ACI 318-99 respectively.

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