Abstract:
This research project was undertaken to develop architectural plans and structural details for a
G+5 building in Rubavu District, Gisenyi Sector, Mbuganga Cell. The project aims to contribute
to Rwanda's development by designing a well-planned residential apartment and commercial
structure that optimizes space utilization while adhering to regulatory standards.
The study looks at both how the building is designed and how it' structurally designed, taking
into designing and British standard codes for structural planning. the results showed that the
architectural design of the mixed use building is composed by five stories, the building had a
height of 18 meters, a length of 52.949 meters and width of 46.750 meters and features critical
elements such as a 6.35m*4.4m slab panel, a 46.550m long beam, a 40cm*40cm column, and a
2.5m*2.5m footing. the structural design of this project showed that the design of the slab
provided has a thickness with bars of 16 mm diameter top reinforcements spaced at 200mm and
16mm diameter bottom steel reinforcements at 200mm.
while for critical beam the designed steel reinforcements were 2T16 at the top distribution steel
reinforcements and 3T16 at bottom and all of the bars were tied up with 8mm links spaced at
200mm.
and for column the designed steel reinforcement was 6T25 from ground floor to first story, 4T25
from the first floor to second floor, 4T20 from second to third floor, 4T16 from third floor to
fifth floor all of the bars tied up with 8mm links spaced at 200mm. while for stair the designed
steel reinforcement was T12 at 300mm within the flight and T12 at 100mm within the landing.
The concrete pad footing had bars of 16mm reinforcements in all direction spaced at 150mm.
This proposed building consists of two sections: a residential apartment complex and a
commercial area. Both parts are integrated into a single structure. The residential section
includes a total of 20 units, each with living rooms, dining areas, bathrooms, and bedrooms. The
commercial section features 38 shops, spanning from the ground floor to the top floor.
