Chapter 4, Problem 163P

2) The form is used to cast a concrete wall having a width of 5 m. determine the equivalent resultant force the wet concrete exerts on the form AB if the pressure distribution due to the concrete can be approximated as shown. Specify the location of the resultant force, measured from point B. p = (422) kPa- 8 kPa B 4 m

4. Wet concrete exerts a pressure distribution along the wall of the form. Determine the resultant force of this distribution and specify the height h where the bracing strut should be placed so that it lies through the line of action of the resultant force. The wall has a width of 5 m. Cp = (4z) kPa

Determine the resultant hydrostatic force the water exerts on a 1 ft width of the sloping upstream face of the gray dam. (Enter the magnitude in kips and direction in degrees below the horizontal.) 21 ft Dam 37 ft 41 ft magnitude kips direction ° below the horizontal Determine the location d in feet at which it acts along the back face of the dam. ft