Paper Details

This work comprises the documentation of comparative analysis of different design models of overheadstorage steel tank (30,000 litres) capacity and 6m height. The total design load used for analysis was gotten from the weightof water when filled to capacity; wind load and self weight of the members were also considered in the load analysis. Fivemodels of the same tank were analysed and designed by varying the span of bracing interval of the bracing members. Themodel 1 was braced at 1m intervals, model 2 was braced at 1.5m intervals, model 3 was braced at 2m intervals, and model 4was braced at 3m intervals and finally model 5 was braced at 6m intervals; all models were double diagonal bracing, pinnedconnected and fixed supported. The beam members were analysed and designed using simple analytical approach. Because ofthe high degree of statical indeterminacy in the analysis of stanchion and bracing components using manual approach,Computer aided structural analysis software staad pro v8i 2007 version was employed to analyse and generate member forcedetails for stanchion and bracing members of each model tested. The maximum compressive force on the stanchion memberof each model was adopted for stanchion design per model. And the maximum force on the bracing member of each modelwas adopted for bracing design per model. These were used to design each model and select sections required per model.After selection of members for various models designed, total weights were computed per model to establish relationshipbetween span of bracing intervals per model and total weight of steel required per model. This led to a conclusion that longerspan of bracing intervals leads to reduction in total weight of steel required and optimal design of over head storage steeltanks. This is due to observed reduction of total weight of steel and reduction in repeated connection cost which most oftenleads to decrease in total cost.

Okonkwo V.O, Udemba J. N, Eze J.E, “COMPARATIVE ANALYSIS OF DIFFERENT DESIGN MODELS OF OVERHEAD STORAGE STEEL TANK (30,000 LITRES) CAPACITY”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 3, Issue 11, pp. 35-39, November 2016.