Reinforced Concrete; A Manual of Practice

Reinforced Concrete; A Manual of Practice

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1908 edition. Excerpt: ...with intermediate supports determined by steel rods running to the opposite side, or by counterforts. Sometimes the thickness of the tank wall is determined in advance and the reinforcement is horizontal. At intervals, determined by the strength of this wall, are run vertical beams, projecting each side of the wall, as pilasters. The strength of the vertical beams being ascertained, the resisting moment of the beam is equated to P for different lengths and at the points thus fixed steel rods will be used to tie the opposite sides of the tank together through these beams. In a wall restrained at top and bottom, the maximum stress Ph is 0.853h from the top, and, M =?g '; For a 12" vertical strip on a wall designed to resist water pressure, M = 4h in inch lbs., when h is in inches. The wall will be of uniform thickness from top to bottom, the reinforcement being vertical with the usual horizontal bearing steel. Circular Tanks. For circular tanks the steel resists all the tension and the concrete serves only to protect the steel. The mixture should be fairly rich and well mixed so it will be dense and water tight. All the rods should be bent to circles and ends firmly fastened together. They should be either in the center of the concrete, or not to exceed twice the thickness of the steel from the outer face. The pressure, w, on the side is the same as for the pressure against a vertical wall. The tension in the sides, to be taken by wD the steel is, T =--r--, in which w represents the unit load, or Circular Tanks. 61 pressure per sq. ft., at any definite depth, and D = internal diameter in inches. T= total tension on 12" width. The area of steel to take care of this tension is found by dividing the tension by the safe unit stress in...
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Product details

  • Paperback | 42 pages
  • 189 x 246 x 2mm | 95g
  • United States
  • English
  • black & white illustrations
  • 1236779282
  • 9781236779281