ABSTRACT The main purpose of this project is to produce a structural design of steel and reinforced concrete cover pavilion, to vihualizes the aesthetic and safety implication of using steel and reinforced concrete in design. The detail design methods used in this project are according to the British Codes and standards the limit state and Elastic Method of analysis are the basis of the design and the calculations are in S.I. unit all. The design is also buttressed by extracts from CP 110, BS 8110 and BS 5950. The structure has length of 54 .94"m with total width of ] 3.53m and a sitting capacity of 1500 . . The columns are of 3 types which are reinforced with Y20 and Y16 diameter bars, while the beams are of the same size 300 x 600mm exception of the roof beanl which is 225 by 225mtn in size and reinforced with Y25 and Y20 diameter bars. The slab is designed as stair slab which has 17 panels of 6m by 6m and thread of 800mm, with riser of 300mm and are reinforced with YIO as the main reinforcement bars and Yl 0 as the distribution bars. The roof beam 2 is a universal beam, which is bolted to the column C) and Stanchion C2A. The columns rest on foundation footings of 2.45m by 2.45m, 2.5m by 2.5m and 2.6m x 2.6m which are reinforced with Y20 diameter bars. At the end of project work recommendations were made for future work, references are also referenced. vi

Abstract

ABSTRACT This project examines the effect of waler cement ratio on the proP l'l·ties or norrnal concrete using coarse aggregates of 12,50 mm maximum size, In ;dl, 33 concrete cubes were prepared, 3 each of di fferent water cement ratios in the rall ge of 0.40-0.60 with all the other concrete mix ingredients kept constant. The mix ratio adopted was 1 :2:4, the cubes were cured for 28 days and were subsequently crushed to determine the compressive strength at the various water cement ratios. Other tests conducted on the concrete and its ingredients are: Sieve analysis, Slump & Density test. Test results ~ shows that an increase in water-cement ratio leads to an increase in the workability of fresh concrete. Also an increase in water-cement ratio between 0.4 and 0.5 leads to an increase in compressive strength and density. An increase in water cement ratio in the range 0.5 - 0.6 leads to a decrease in compressive strength and density. The work provides a data bank for concrete properties within the limit of the scope considered in this work. VI