© JUL 2020 | IRE Journals | Volume 4 Issue 1 | ISSN: 2456-8880 IRE 1702402 ICONIC RESEARCH AND ENGINEERING JOURNALS 13 Study on Economical Design of Bunker MONIKA DAGLIYA 1 , NIKITA SAINI 2 , ANSHUMAN SINGH 3 , HITESH YADAV 4 1, 2, 3, 4 Prestige Institute of Engineering Management and Research Indore Abstract- In order to study the most economical material used for construction of bunkers to store a given volume of a material. Two bunkers have been designed by the same ratio of height to lateral dimensions for storing a given material like coal. In this investigation for capacity 300KN, the length to breadth ratio is taken same for reinforced concrete bunker and steel bunker are designed. Design of bunkers have been based on the recommendations of IS 4995-1974 part 1 & part 2 for “RCC Bunker” and IS 9178-1979 part 1 & part 2 for “Steel Bunker”. After designed comparison between RCC Bunker and Steel Bunker is done. Finally, the most economical bunker is found out, which material (RCC or Steel) for construction of bunker will lead to economical, to store a given amount of material have been found out. These findings will be useful for the designers for the designers of bunkers. Indexed Terms- Angle of Repose, Bending Moment, Bins Loads and Pressure, Plane of Rupture, Unit Weight. I. INTRODUCTION Bins are used by a wide range of industries to store bulk material (like grain, coal, cement etc.) in quantities ranging from a few tonnes to over one hundred thousand tonnes. A bin is an upright container for the storage of bulk granular materials. Shallow bins are usually called as bunkers and deep bins are usually called as silos. If the depth and breadth of a bin are such that the plane of rupture meets the surface of the material before it strikes the opposite side of the bin. It is called a shallow bin or a “bunker”. Hopper of bins is four sloping slabs. Bunkers are made from many different structural materials. They can be constructed of reinforced concrete or steel and may discharge by gravity flow or by mechanical means. Steel Bunkers range from heavily stiffened flat plate structure to efficient unstiffened shell structures. They can be supported on columns, loads bearings skirts. Bins with flat bottom are supported directly on foundations. Reinforced concrete is an ideal structural material for the building of permanent bulk storage facilities for dry granular material. The total load of material is supported by the floor of the bunker. Rankine’s theory is used in design of bunker. II. OBJECTIVE OF THE STUDY The main objective of the investigation reported here is:- i) To identify the most economical material for design of bunker. ii) To construct on site for storage of given volume of material III. BUNKER Bins are used by a wide range of industries to store material like coal, grains, cement and also for food, shelter etc. The main two characteristics that make a bin to act as a bunker is based on the Depth and Angle of Rupture. Bunkers are shallow structures. Plane of Rupture meets the top horizontal surface. The total load of material is supported by the floor of bunker. The intensity of horizontal pressure on the side wall is determined by Rankine’s Theory. IV. TYPES OF BUNKER TO BE DESIGN 4.1 RCC BUNKER- Reinforced Concrete is an ideal structural material for the building of permanent bulk storage facilities for dry granular material.