Masonry Walls
Water pressure on masonry walls
Key Facts
Gyroscopic Couple: The rate of change of angular momentum () = (In the limit).- = Moment of Inertia.
- = Angular velocity
- = Angular velocity of precession.
Blaise Pascal (1623-1662) was a French mathematician, physicist, inventor, writer and Catholic philosopher.
Leonhard Euler (1707-1783) was a pioneering Swiss mathematician and physicist.
Overview
Consider a vertical masonry wall having water on one of its sides as shown in figure. Now consider a unit length of the wall. We know that the water pressure will act perpendicular to the wall. A little consideration will show, that the intensity of pressure, at the water level, will be zero, and will increase by a straight line law to at the bottom as shown in figure. Thus the pressure diagram will be a triangle.MISSING IMAGE!
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Example:
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Example - Water pressure on masonry walls
Problem
One of the walls of a swimming pool contains 4m deep water. Determine the total pressure on the wall, if it is 10m wide.
Workings
Given,
- Depth of water, H = 4m
- Width of wall = 10m
Solution
Total pressure on the wall = 784.8 KN