The main of this Studies On Economical Configuration Of Rcc And Prestressed Shell Roofs report is to identify the configuration of different directrices of Pre-stressed cylindrical shell roofs that will result in the least cost for a given load and span. To identify the configuration of different directrices of RC Conoidal shell roofs that will result in the least cost for a given load and span. To study the influence of the amount of dip in the case of Hyperbolic Paraboloid –Inverted umbrella (Square and Rectangle) type shell roof. The most economical configuration of Pre-stressed cylindrical shell roofs having different directrices to cover a given area, the following types of cylindrical shell structures are Circular Directrix, Parabolic Directrix, Inverted catenary Directrix, Cycloidal Directrix.
Curved surface having small thickness compared to the radius and other dimensions. Shells or skin space roofs are preferable to plane roofs since they can be used to cover large floor spaces with economical use of materials of construction. The use of curved space roofs requires 25 to 40% less materials than that of the plane elements. The report gives Advantages and Disadvantages of shell roofs. Shell roofs are chosen commonly for covering large clear areas using the minimum of intermediate supports. Finally this report gives detail explanation on Objects of Pre-stressing, Advantages of Pre-stressing, Methodology Adopted, and Examples of Pre-stressed.
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