“Structural design of G+4 commercial and residential building

Abstract

The main objective of this research was to conduct a technical detailed study on the implementation of G+4 building in KICUKIRO DISTRICT With size of (51*41m). due to the capacity of existing carrie`re old market based on the number of the customer received on this market. 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 ramp, shear wall different software’s has been used like Arch cad 20,for providing architectural drawing of the market building such including all plan views, sections, elevation and perspectives, protastructure have been used and manual for the structural design of beam, slab, column, footing, stair and ramp by computing beam detailing and reinforcement. Arc GIS and Google earth have been used for well locating the study area and preparing all maps. Bill of quantity has been calculated within this study the results showed: in archictecural drawing, has size of 51m in length and 41m in width, on ground floor has 14 shop with size (6m*4m),2 restaurant with size (8m*4m), 1 pharmancy with size( 8m*4m),15 toilet with size (1m*1.5m),space of vegetable shoping,stairs,ramp,on the fist floor has 12 room with size (6m*4m),room1 ,room2 with same size of 8m*4m athers floors are same as first floor each floor has height of 3.5m. In the design of steel reinforcements to be arranged in slab were 10bars12mm of diameter at the top and bottom 4Ф10@300mm/m while for T beam designed steel reinforcements were T5@25mm at the top and 4@25mm at the bottom. And for column the designed steel reinforcement were 8Ф20mm for ground floor part the column and T8@20mm for first floor, second, third, fourth and fifth floor designed steel reinforcement were T8@20mm while foundation steel designed by Protastructure software that shows reinforcement were 6Ф20mm for the stair designed steel reinforcement were T10@150mm/m For main and T2@12mm a ramp design steel reinforcement were T12@150mm. The estimated amounts of building 1,116,519,944 Rwf the building was well located therefore the expected results have been achieved. (in word one milliard, one hundred sixteen millions five hundred nineteen thousands and nine hundred forty-four Rwf).