3. A rigid block weighing 12 kips is supported by three rods symmetrically placed as shown in Fig 2-14. Assuming the block to remain horizontal, determine the stress in each rod after a temperature rise of 100 ° F. The lower ends of the rods are assumed to have been at the same level before the block was attached and the temperature changed. Use the data in the following table: Bronze L = 3 ft Steel Steel L = 2 ft L 2 ft Por W = 12 000 lb Figure 2-14 Free-body diagram. Each steel rod Bronze rod Area in in? 3/4 1.5 E in psi Coefficient of linear expansion in in/ (in• °F) 29 x 10 6 12 x 10 6 6.5 x 10 -6 10 x 10 -6

3. A rigid block weighing 12 kips is supported by three rods symmetrically placed as shown in Fig 2-14. Assuming the block to remain horizontal, determine the stress in each rod after a temperature rise of 100 ° F. The lower ends of the rods are assumed to have been at the same level before the block was attached and the temperature changed. Use the data in the following table: Bronze L = 3 ft Steel Steel L = 2 ft L 2 ft Por W = 12 000 lb Figure 2-14 Free-body diagram. Each steel rod Bronze rod Area in in? 3/4 1.5 E in psi Coefficient of linear expansion in in/ (in• °F) 29 x 10 6 12 x 10 6 6.5 x 10 -6 10 x 10 -6

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter8: Vertical Stress Increase In Soil

Section: Chapter Questions

Problem 8.7P: A 9 ft wide and infinitely long flexible strip load of 800 lb/ft2 is placed on an elastic medium as...

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