WATER RESOURCES ENGINEERING (CL)
3rd Edition
ISBN: 9781119625827
Author: Mays
Publisher: WILEY
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Chapter 4, Problem 4.4.1P
To determine
Number of bolts required for the safe connection.
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The gas storage tank is fabricated in the following manner: a 10-mm thick plate is rolled to form a cylindrical shell which is bolted on one side, then its ends are sealed by bolting two hemispherical shells. The resulting inner diameter of the tank is 4 m. All bolts have a diameter of 15 mm. If the internal pressure in the tank is 1 MPa, determine the following:a. the number of bolts needed in each hemispherical shell if the normal stress in the bolts should not exceed 250 MPab. the minimum required thickness of the hemispherical shells if the normal stress in the shell should not exceed 125 MPac. the hoop stress in the cylinderd. the minimum require spacing of the bolts in the cylindrical shell if the normal stress in the bolts should not exceed 250 MPa.
TWO CONCRETE BLOCKS WEIGHING 1800 N
EACH FORM PART OF THE RETAINING WALL
OF A SWIMMING POOL. WILL THE BLOCKS BE
IN EQUILIBRIUM WHEN THE POOL IS FILLED,
AND THE POOL EXERTS THE LINE LOADING
SHOWN? IF YES, WILL IT SLIDE OR TIP? ALSO,
DETERMINE THE HEIGHT OF WATER IN
WHICH THE POOL WILL BE FILLED SUCH THAT
THE BLOCKS WILL BE IN EQILIBRIUM.
300
mm
540
mm
A-0.5
540
Plastic
liner
mm
A-10
6Nmm
A storage tank if fabricated by bolting together two half cylindrical shells as shown. The tank is designed to withstand a pressure of 3MPa. The tank and the 25mm bolts are made from a material having an allowable normal stress of 158MPa and 246MPa respectively. The tank's inner diameter is 4m.
What are the required thickness of the hemispherical and cylindrical shells and the required number of bolts in each hemispherical cap?
Chapter 4 Solutions
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