Answered: The structure and enclosed paved plaza…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

The structure and enclosed paved plaza of the BMW Zentrum building, located in Greenville, South
Carolina, may be approximated as a 70-m diametercircle. Flow path length may be approximated
as the average of the diameter and a half-circumference. The average surface slope ofthis
combinedfacility is approximately 5 percent.
(a) Compute time of concentration using the FAA equation.
(b) Rainfall intensity for Greenville County may be computed by the formula i = a/ (b + t.)°, using
coefficients in the following table. What is the expected 25-year rainfall intensity?
(c) Using the rational method, whatis the expected peak 25-year runoff from this facility?
(d) What factors may contribute to the uncertainty of this runoff estimate?

Frequency
(yr)
2
5
10
25
50
100
b
36.00240
C
1.03796
33.48168 1.02232
31.96134 1.01265
7044.042 29.95209 0.99969
7273.963 28.61085 0.99104
7492.464 27.30887 0.98274
a
6042.421
6445.667
6700.045
for to min and i = mm/hr

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