Abstract:
The general objective of this research was to conduct an Architectural and structural
design of G+4 Residential and Commercial Building at Kigali city, Gasabo district, Gisozi
sector. It is the reason why this research has been conducted to solve that problem.
Different methods have been used for well conducting this study such as analytical method
for designing different structural members like slab, beam, column, foundation, stairs and
shear wall, different software’s has been used like ArchiCAD 19, for providing architectural
drawing of the Residential and Commercial Building such including all plan views,
sections, elevation and perspectives, ETABS have been used for the structural design of
beam, stair and shear wall by computing beam detailing. Prokon has been used for the
design of footing. This proposed building has total area of 797.5m2 with width of 27.5 m
and length of 29 m, story height is 3.1m each. Bill of quantity has been calculated within
this study the results showed that the designed steel reinforcements to be arranged in slab
were at the top 10@200mm and 10@200mm at the bottom while for T beam designed
steel reinforcements were 5Ф16 at the top and 4Ф16 at the bottom. And for column the
designed steel reinforcements were 12Ф20. For the stair designed steel reinforcement
were 12@250mm for main, a shear wall design steel reinforcement was for longitudinal
12@200mm. The building was well located therefore the expected result have been
achieved. this project has been estimated to the cost of 1,159,206,705 Rwf. The execution
of this project would stimulate proper land use, solve the problem of continuous demand of
plot of land for Residential and Commercial Buildings, which could be used for other
human development activities
