The maximum area of tension reinforcement in beams shall not exceed
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RCC Structures Design
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An R.C.C. beam of 25 cm width and 50 cm effective depth has a clear span of 6 meters and carries a U.D.L. of 3000 kg/m inclusive of its self weight. If the lever arm constant for the section is 0.865, the maximum intensity of shear stress, is
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Lapped splices in tensile reinforcement are generally not used for bars of size larger than
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After pre-stressing process is completed, a loss of stress is due to
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If a rectangular pre-stressed beam of an effective span of 5 meters and carrying a total load 3840 kg/m, is designed by the load balancing method, the central dip of the parabolic tendon should be
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If the size of a column is reduced above the floor, the main bars of the columns, are
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For initial estimate for a beam design, the width is assumed
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[A + (m - 1) ASC] known as equivalent concrete area of R.C.C. is given by
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The reinforced concrete beam which has width 25 cm, lever arm 40 cm, shear force 6
t/cm2, safe shear stress 5 kg/cm2 and B.M. 24 mt,
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The maximum diameter of a bar used in a ribbed slab, is
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The advantage of a concrete pile over a timber pile, is
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An R.C.C. roof slab is designed as a two way slab if
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The amount of reinforcement for main bars in a slab, is based upon
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The transverse reinforcements provided at right angles to the main reinforcement
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If ‘W’ is weight of a retaining wall and ‘P’ is the horizontal earth pressure, the factor of safety against sliding, is
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If p1 and p2 are mutually perpendicular principal stresses acting on a soil mass, the normal stress on any plane inclined at angle to the principal plane carrying the principal stress p1, is:
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The width of the rib of a T-beam, is generally kept between
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If ‘H’ is the overall height of a retaining wall retaining a surcharge, the width of the base slab usually provided, is
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The thickness of base slab of a retaining wall generally provided, is
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Bottom bars under the columns are extended into the interior of the footing slab to a distance greater than
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