A 3-hour rainfall occurred at some part of IIUM Gombak Campus, over a catchment rea of 160 ha. The rainfall distribution and other relevant data is given in Table 1. Calculate the runoff volume generated due to that storm event. Table 1: Data for Question 1(b) % of catchment P-index (cm/h) Rainfall (cm)

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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A 3-hour rainfall occurred at some part of IIUM Gombak Campus, over a catchment
area of 160 ha. The rainfall distribution and other relevant data is given in Table 1.
Calculate the runoff volume generated due to that storm event.
Table 1: Data for Question 1(b)
% of catchment
9-index (cm/h)
Rainfall (cm)
area
1st hour
2nd hour
3rd hour
20
1.00
0.8
2.3
1.5
30
0.75
0.7
2.1
2.5
1.0
50
0.50
1.0
0.8
Transcribed Image Text:A 3-hour rainfall occurred at some part of IIUM Gombak Campus, over a catchment area of 160 ha. The rainfall distribution and other relevant data is given in Table 1. Calculate the runoff volume generated due to that storm event. Table 1: Data for Question 1(b) % of catchment 9-index (cm/h) Rainfall (cm) area 1st hour 2nd hour 3rd hour 20 1.00 0.8 2.3 1.5 30 0.75 0.7 2.1 2.5 1.0 50 0.50 1.0 0.8
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