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Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Hope your help concrete design (CE410) thanks
![**Problem IV:**
The mean and standard deviation of the 30-minute annual maximum rainfalls observed at a rain gauge in Iowa are computed to be 10.51 mm and 5.96 mm, respectively. The Steel Formula for the gauge's 100-year IDF curve is given by:
\[
i = \frac{542}{(t + 4.5)^{0.65}}
\]
where \( i \) is the rainfall intensity in mm/hr, and \( t \) is the rainfall duration in minutes.
Tasks:
1. Determine the 10-year 30-minute rainfall intensity by assuming a Gumbel distribution.
2. Develop a 100-year 24-hour synthetic design storm using the NRCS rainfall distribution method for a computational time interval of 1 hour.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc70b81a7-a8ab-4818-b3b7-8b738bf5f219%2F9e7498c5-c39e-47ce-93d7-b54aaab49409%2Ft8ss78s_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Problem IV:**
The mean and standard deviation of the 30-minute annual maximum rainfalls observed at a rain gauge in Iowa are computed to be 10.51 mm and 5.96 mm, respectively. The Steel Formula for the gauge's 100-year IDF curve is given by:
\[
i = \frac{542}{(t + 4.5)^{0.65}}
\]
where \( i \) is the rainfall intensity in mm/hr, and \( t \) is the rainfall duration in minutes.
Tasks:
1. Determine the 10-year 30-minute rainfall intensity by assuming a Gumbel distribution.
2. Develop a 100-year 24-hour synthetic design storm using the NRCS rainfall distribution method for a computational time interval of 1 hour.
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