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सुदूरपश्चिम प्रदेश स्थानीय सरकारी सेवा अन्तर्गत इञ्जिनियरिङ्ग सेवा, सिभिल समूह, स्यानिटरी उपसमूह, चौथो तह, खानेपानी तथा सरसफाइ टेक्निसियन पदको प्रतियोगितात्मक लिखित परीक्षा

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Load Bearing Piles

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1. Cast iron piles.  Cast iron piles are hollow tubes of cast iron having inner diameter 20 to 40 cm and wall thickness 20 to 30 mm. These are generally 4 metres in length and for longer lengths these are joined by a suitable device. Cast iron being a brittle material, these piles are provided with helical screws at the lower end and the whole assembly is rotated to drive the pile inside the soil. Piles with helical screws are generally known as screw piles. Cast iron piles are suitable for shallow foundations and are suitably employed for the foundations of marine structures, light weight bridges and buoys anchors. 2. Cement concrete piles These are of the following types : A. Cast-in-situ piles These piles are cast with cement concrete at the place where   these have to carry superimposed load. For casting the pile, a hole is driven by excavating with an Auger or driving a casing. The hole is then filled up with cement concrete...
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Standard Stirrup Bends for Columns

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 In reinforced concrete construction, stirrups (also known as ties or hoops) are used to provide lateral support to vertical reinforcement bars (rebars) in columns. These stirrups help to confine the longitudinal reinforcement and enhance the column's resistance to forces such as bending and shear. The bends and configurations of stirrups in columns are typically standardized to ensure effective reinforcement and construction practices. Here are the standard stirrup bends commonly used in columns: Standard Stirrup Bends for Columns: U-Shaped Stirrups: Configuration: U-shaped stirrups are bent into a semi-circular or rectangular U-shape, with the legs of the U extending horizontally between vertical bars. Purpose: U-shaped stirrups are used to confine the vertical reinforcement bars and provide lateral support against buckling and shear forces. Closed Stirrups (Rectangular Stirrups): Configuration: Closed stirrups are bent into a rectangular shape, where the two legs of the stirr...
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