ReturnEquivalent Average Intensity of Computed Extreme Values, mm/hrPeriodDuration, minutesYears2030601201803607202138.2102.083.456.538.629.619.711.45186.4137.4114.881.756.045.530.617.810218.4160.8135.698.367.556.137.822.115472.8174.0147.4107.774.062.031.024.520498.0183.3155.6114.378.566.233.126.125517.2190,5162.0119.482.069.434.727.450577.2212.4181.4135.092.879.339.731.4100637.2234.3Hydrometeorological Investigations and Special Studies SectionFlood Forecasting BranchPAGASA200.8150.5103.589.244.635.4Source:Determine the design rainfall intensity (mm/hr) for a 30-minute rainfall event with1.33% annual exceedance probability.

Answered: Determine the design rainfall intensity…

Engineering

Civil Engineering

Determine the design rainfall intensity (mm/hr) for a 30-minute rainfall event with 1.33% annual exceedance probablity.

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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Concept explainers

Probability, risk and uncertainty analysis for hydrological design

It gives a framework that is financially critical for finding the exceptional designs of hydrological systems with a reduced cost in total inclusive of the project cost and the disaster mitigation cost. But there would be hardly any assessment of a decent quality damage function. Hence, errors in demonstrating the hydrologic events, incorrect model parameters, and so on may occur. Here, we will discuss a specific hydrological design that of a detention basin for studying and understanding the risk-based procedure, uncertainties, and probability analysis by following a systematic framework.

Question

Return
Equivalent Average Intensity of Computed Extreme Values, mm/hr
Period
Duration, minutes
Years
20
30
60
120
180
360
720
2
138.2
102.0
83.4
56.5
38.6
29.6
19.7
11.4
5
186.4
137.4
114.8
81.7
56.0
45.5
30.6
17.8
10
218.4
160.8
135.6
98.3
67.5
56.1
37.8
22.1
15
472.8
174.0
147.4
107.7
74.0
62.0
31.0
24.5
20
498.0
183.3
155.6
114.3
78.5
66.2
33.1
26.1
25
517.2
190,5
162.0
119.4
82.0
69.4
34.7
27.4
50
577.2
212.4
181.4
135.0
92.8
79.3
39.7
31.4
100
637.2
234.3
Hydrometeorological Investigations and Special Studies Section
Flood Forecasting Branch
PAGASA
200.8
150.5
103.5
89.2
44.6
35.4
Source:
Determine the design rainfall intensity (mm/hr) for a 30-minute rainfall event with
1.33% annual exceedance probability.

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