EXAMIANS
Minimum spacing between horizontal parallel reinforcement of the same size should not be less than
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If the modular ratio is ‘m’, steel ratio is ‘r’ and overall depth of a beam is ‘d’, the depth of the critical neutral axis of the beam, is
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For a ribbed slab
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For stairs spanning l meters longitudinally between supports at the bottom and top of a flight carrying a load w per unit horizontal area, the maximum bending moment per metre width, is
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Lapped splices in tensile reinforcement are generally not used for bars of size larger than
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According to load factor method, the permissible load ‘W’ on a short column reinforced with longitudinal bars and lateral stirrups, is
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The maximum diameter of a bar used in a ribbed slab, is
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If d is the diameter of a bar, ft is allowable tensile stress and fb, is allowable bond stress, the bond length is given by
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‘P’ is the pre-stressed force applied to tendon of a rectangular pre-stressed beam whose area of cross section is ‘A’ and sectional modulus is ‘Z’. The minimum stress ‘f’ on the beam subjected to a maximum bending moment ‘M’ is
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A pre-stressed concrete member
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