The book Concrete Construction for Rural Communities was written by author Roy a Roy Andrew Seaton Here you can read free online of Concrete Construction for Rural Communities book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Concrete Construction for Rural Communities a good or bad book?
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In deep tanks it is desirable to use some vertical rods to pre- vent possible horizontal cracks. Round rods, J inch or f inch in diameter, spaced 18 to 24 inches on centers, will usually be sufficient. In silos and other hollow cylinders containing solid or partly solid matter, the pressure against the walls is less than that pro- duced by liquids, and the above method of calculation will give an excess of steel. Columns. Concrete columns should not be made longer than 15 times their diameter (...or width of one side, if square) between points of support. If made only six to eight times their diameter, they need not be reinforced. If they are longer, an amount of reinforcement equal to 1 per cent or more of the area of the column should be used. This should be distributed into one rod near each corner, and the rods should be tied together by wires at intervals of about a foot. The central load which a column can safely carry may be calculated by multiplying the area of the section by the safe unit stress (450 Ib.
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