1. (Source: Potter) A coal-fired power plant is served by 25 trucks. When loaded, each truck...
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1. (Source: Potter) A coal-fired power plant is served by 25 trucks. When loaded, each truck consists of one single-axle of 14 kips (the front axle), two tandem axles of 32 kips cach (the middle axles) and one single axle of 22 kips (back axle). Each truck makes 25 daily trips. The weights on the same axles when the truck is empty and leaving the power plant are 10 kips, 12 kips, and 8 kips, respectively. A two- lane road is to be designed to serve the power plant and to last for a period of 10 years. a) What is the equivalency factor for the 14 kip single axle? b) What is the load equivalency factor for the 32 kip tandem axle? c) What is the design ESAL (for 10 years) for the incoming traffic? d) What is the design ESAL (for 10 years) for the outgoing traffic? 1. (Source: Potter) A coal-fired power plant is served by 25 trucks. When loaded, each truck consists of one single-axle of 14 kips (the front axle), two tandem axles of 32 kips cach (the middle axles) and one single axle of 22 kips (back axle). Each truck makes 25 daily trips. The weights on the same axles when the truck is empty and leaving the power plant are 10 kips, 12 kips, and 8 kips, respectively. A two- lane road is to be designed to serve the power plant and to last for a period of 10 years. a) What is the equivalency factor for the 14 kip single axle? b) What is the load equivalency factor for the 32 kip tandem axle? c) What is the design ESAL (for 10 years) for the incoming traffic? d) What is the design ESAL (for 10 years) for the outgoing traffic?
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Related Book For
Probability and Statistics
ISBN: 978-0321500465
4th edition
Authors: Morris H. DeGroot, Mark J. Schervish
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