1st batch.pptx
- 1. ABSTRACT INTRODUCTION OBJECTIVES TYPES OF WATER TANKS PLAN OF TANKS MATERIALS REQUIRED IN CONSTRUCTION DESIGN OF AN INTZE TANK DESIGN OF RECTANGULAR TANK DETAILING DIAGRAMS STADDPRO ANALYSIS OF RECTANGULAR WATER TANK CONCLUSION REFERENCE
- 2. Due to enormous need by the public ,water has to be stored and supplied according to their needs . Water demand is not constant throughout the day. It fluctuates hour to hour. In order to supply constant amount of water, we need to store water. So to meet the public water demand , water tank need to be constructed.
- 3. A water tank is used to store water to tide over the daily requirement. In the construction of concrete structure for the storage of water and other liquids the imperviousness of concrete is most essential. Design of liquid retaining structure has to be based on the avoidance of cracking in the concrete having regard to its tensile strength. Cracks can be prevented by avoiding the use of thick timber shuttering which prevent the easy escape of heat of hydration from the concrete mass the risk of cracking can also be minimized by reducing the restraints on free expansion or contraction of the structure.
- 4. To make a study about the existing supply of water and need for water storage in To calculate the forces and stresses acting on INTZE&RECTANGULAR water storage tank. To make a study about the guidelines for the design of liquids retaining structure according to its code. To design and analyze water tank structure using manual method and STAAD pro software.
- 5. CLASSIFICATION BASED ON POSITION: Tanks resting on ground Underground water tanks Elevated water tanks CLASSIFICATION BASED ON SHAPE: Circular tanks Rectangular tanks Intze tanks Spherical tanks Conical bottom tanks PSC tanks
- 8. RECTANGUL AR TANK CIRCULAR TANK INTZE TANK PRESTRESS ED TANKS For smaller capacities we go for rectangular tanks For bigger capacities we go for circular tanks Intze tank is constructed to reduce the project cost because lower dome in this construction resists horizontal thrust For bigger tanks, prestressing is the superior choice resulting in a saving of up to 20%
- 10. M20 grade concrete is used for construction. High quality Leak proof Should not crack
- 11. Permissible stresses should not exceed the limit Permissible stress in direct tension=1000kg/cm2 Tensile stress in bending =1000 to 1200 kg/cm2
- 12. 0.3 % of gross cross sectional area must be provided up to 100mm thickness. 0.2% of gross cross sectional area for 100- 450mm thickness. 0.2% of gross cross sectional area should be provided for >450mm thickness in each direction. 0.12% should be provided in foundation.
- 13. The objective of using them is to fill the process of concrete and to obtain a dense and less permeable concrete. Commonly used water proofing material is HYDRAULIC LIME. Other agents like chalks, sodium silicate zinc sulphate, calcium chloride etc…,are used.
- 15. Capacity -600000litres Staging part-16m Grade of concrete used –M20 Steel –HYSD 415N/mm2 Dome : Generally Dome is spherical in shape the rise of the dome is taken from 1/4th to 1/6th of its span and thickness of dome slab is taken from 100 to 150 thick.
- 16. Top dome Top ring beam Cylindrical wall Bottom spherical dome Bottom circular girder Staging portion 1. Columns 2. Bracings Foundation
- 17. Members Loads Top dome Self weight ,live load , finishes Top ring beam Hoops tension ,weight of top dome , self weight Cylindrical wall Water pressure , vertical load , hoop tension ,self weight Bottom ring beam Vertical load, tension due to vertical loads ,hoops tension Conical dome Water pressure ,vertical load, hoop tension Bottom spherical dome Total weight of water, self weight Bottom ring girder Vertical loads, weight if dome Columns Vertical load due to tank , wind forces , self weight of bracings
- 18. DIMENSION LENGTH(m) Diameter of tank 14 Height of cylindrical portion 3 Depth of conical dome 2 Diameter of supporting tower 10 Spacing of bracings 4
- 19. Member Size or Dimensions Top dome 100mm thick Top ring beam 400mm width&360mm depth cylindrical wall Thickness of 180 mm at top and 250mm at bottom Conical dome 600mm thick Columns Circular columns of 700mm dia Bracings 300mm&600mm
- 24. Specification Size Reinforcement details Long span Short span 3m×3m 3m×3m 8mm@350mm c/c 8mm@350mm c/c
- 25. Specification Size Reinforcement details Horizontal steel 9m×3m 20mm@100mm c/c Vertical steel 9m×3m 10mm@75mm c/c Horizontal steel @ mid span 9m× 3m 10mm@115mm c/c
- 26. Specification Size Reinforcement details Main reinforcement 250mm×450 mm 3 bars of 25mm ∅ Stirrups 250mm×450 mm 2 legged 12mm ∅ @115mm c/c
- 27. BI AXIAL LOADED COLUMS Specification Size Reinforcemen t details Main reinforcement 300mm×300m m 4 bars of 20mm∅ Ties 300mm×300m m 8mm∅@300m m c/c
- 28. BI AXIAL LOADED COLUNMS Specification Size Reinforcemen t details Main reinforcement 300mm×300m m 4 bars of 20mm∅ Ties 300mm×300m m 8mm∅@300m m c/c
- 29. UNIAXIAL LOADED COLUNMS Specification Size Reinforcemen t details Main reinforcement 300mm×300 mm 6 bars of 22mm ∅ Ties 300mm×300 mm 8mm∅ ties @300mm
- 30. AXIAL LOADED COLUNMS Specification Size Reinforcemen t details Main reinforcement 300mm×300m m 6bars of 16mm ∅ Ties 300mm×300m m 4mmties@200 mm
- 31. Two way slab
- 32. Doubly reinforced beam
- 34. Axial column
- 39. Storage of water in tanks has become a necessity for drinking and washing purposes day life. For small capacities we go for rectangular water tanks & for large capacities we go for circular tanks. The designed RCC rectangular & Intze water tanks can store water up to 10,00,000 liters. In this design project we have design and analyzed the overhead rectangular & Intze RCC water tank through theoretical design and STADD Pro program. Although the stresses and bending moment are nearly equal but all the parameters used in the theoretical design cannot be fully adopted in the program.
- 40. A parametric study of an Intze type of tank paper given in international conf of structural and civil engineering by M.K. Sharma, Z. Ahmed, P. Bhardwaj and S.Choudhury. Design of Intze Tank in Perspective of Revision of IS: 3370 by Ranjit Singh Lodhi, Dr. Abhay Sharma, Dr. VivekGarg (International Journal of Scientific Engineering and Technology Volume No.3 Issue No.9, pp :1193-1197). Some aspects in analysis of Intze type water tank by I. Rajendran. Structural Design and Drawing reinforced concrete and steel by N.Krishna Raju. IS-456:2000 for design of concrete IS-3370- 1965 for design of water retaining concrete structures