4- One of the engineers wants to fit a distribution on the precipitation data, what type of distributiondo you suggest fitting the distribution and why?5- A recreational park is built near a creek. The stream channel can carry 200 m^3/s which is the peakflow of the 5-yr. storm of the watershed. What is the probability the park will flood once in the next10 years? What is the probability the park will flood next year?

Answer 4: Which distribution should be used depends on the characteristics of the data.Answer 5:…

Answered: 4- One of the engineers wants to fit a…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

68.Which of the following statements regarding floods is true ? Select one a. a 40 - year flood is generally of greater magnitude than a 80 - year flood b. a 200 - year flood has a 2 % chance of occurring in any one year c. if there is a 10 % probability of a flood of a certain height occurring in any one year it is called a 10 - year flood d . the recurrence interval of a flood of a certain height does not depell upon the width of the floodplain
Q.5. Floods in a stream have the mean 600 m3/s and the standard deviation 400 m3/s. Pleaseanswer the following questions assuming normal distribution.a) What is the probability that the flood flow any year exceeds 700 m3/s?b) What is the 100-year flood discharge?
A watershed covering 28.16 mi2 has a system of seven rainfall gages, as shown on the map in the Figure. Using the total storm rainfall depths given in the accompanying table, determine the average rainfall over the watershed using: (a) arithmetic averaging and (b) the Thiessen polygon method. Gage ABCDEFG А с P₁ (in.) 5.13 6.74 9.00 6.01 5.56 4.98 4.55 A₁ (mi²) 1.74 6.70 1.77 13.02 0.83 2.68 1.42 28.16 B. . E 1 in. = 3.9 mi .F . G
(b) Given in Table Q4 are the flood records for 15 years at a dam site. Determine by any frequency method the 50 years flood and the recurrence interval of flood peaks of 5000 m³/s Table Q4: Flood records Flood peak (m³/s) 3110 Flood peak |(m³/s) 2380 Year Year 1937 1945 1946 3810 7800 1938 5800 1939 3090 1947 1940 1948 1723 3630 4525 3250 1941 1949 1950 1951 1942 6600 5260 4980 1943 9200 1944 2290
The ordinates of flood hydrograph resulting from a storm of 5 hr duration are given below: Time (hr) 0 10 20 30 40 50 60 70 Q(m°/s) 5 15 35 55 35 25 15 The excess rainfall at the outlet of a 200 km2 catchment is cm. (Answer upto 2 places of decimal). Assume base flow as 5 m3/s.
' The ordinates of a 3-hour UH are given in the following table: Time 3 6 9 12 15 18 21 27 30 (hour) 3 10 30 80 60 50 40 30 10 2 hour UH (m/s) (a) Estimate the area of the basin. (b) Determine the DRH ordinates due to two ER of 2 cm and 3 cm occurring in two successive 3-hour durations each. (c) Estimate the flood hydrograph ordinates if the base flow at time 0 h is 10 m/s and increase to reach 20 m'/s at time of 30h. (d) Estimate the total runoff volume 24
The 60-year record shows that the annual maximum discharges for a river have a mean of 30,000 cfs, a standard deviation of 28,000 cfs, and a skewness coefficient of 3.15. If the annual maximum discharge can be described by the Extreme-value Type I distribution, what is the probability that the annual maximum discharge exceeds 100,000 cfs at least once in next 10 years? (Note: The sample size is 60. Conduct interpolation using exceedance probabilities or cumulative probabilities.)
2-A 3 hours storm produces a flood hydrograph as: t (hr) Q (m³/s) 0 3 6 4 9 12 9 18 12 20 15 18 21 24 16 20 10 8 Determine 3 hr-UH, if the catchment area is 50 km². 27 6 30 4
hydrology question 1- The mean rainfall over a catchment is presented in 20-min time intervals. If the D-index is 8 mm/hr, what are the runoff depth and runoff coefficient respectively? Time (min) Rainfall intensity (mm/hr) 0 15 20 21 40 25 60 17 80 8 100 6 120 10 140
1. Annual maximum recorded floods in a river for the period of 1951 to 1977 is given below. Verify whether Gumbel extreme value distribution fit the recorded values. Estimate the flood discharge with recurrence interval of (i) 100 years and (ii) 150 years by graphical extrapolation. Year 1951 1952 1953 1954 1955 1956 1957 1958 1959 Маx 2947 3521 2399 4124 3496 2947 5060 4903 3757 Flood (m³/s) Year 1960 1961 1962 1963 1964 1965 1966 1967 1968 Мах 4798 4290 4652 5050 6900 4366 3380 7826 3320 Flood (m3/s) Year 1969 1970 1971 1972 1973 1974 1975 1976 1977 Маx 6599 3700 4175 2988 2709 3873 4593 6761 1971 Flood (m³/s)
Figure 2.2 shows a catchment with seven rain guage stations inside it and three stations outside. The rainfall recorded by each of these stations are indicated by the figure. Draw the figure to an enlarged scale and calculate the mean precipitation method by (a) Isohyetal method and by (b) Arithmetic-mean method.
Q1: A hydraulic structure on a stream has been designed for return periods of 50 and ST 100 years. Maximum recorded floods in the stream are given below. Estimate the peak floods for the two return periods above, by using Gumble method. Year 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 Max. 115 128 142 99 79 71 85 102 145 flood, 153 78 50 m³/sec

SEE MORE QUESTIONS

Recommended textbooks for you

Structural Analysis

Civil Engineering

ISBN:

9781337630931

Author:

KASSIMALI, Aslam.

Publisher:

Cengage,

Structural Analysis (10th Edition)

Civil Engineering

ISBN:

9780134610672

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Principles of Foundation Engineering (MindTap Cou…

Civil Engineering

ISBN:

9781337705028

Author:

Braja M. Das, Nagaratnam Sivakugan

Publisher:

Cengage Learning

Structural Analysis

Civil Engineering

ISBN:

9781337630931

Author:

KASSIMALI, Aslam.

Publisher:

Cengage,

Structural Analysis (10th Edition)

Civil Engineering

ISBN:

9780134610672

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Principles of Foundation Engineering (MindTap Cou…

Civil Engineering

ISBN:

9781337705028

Author:

Braja M. Das, Nagaratnam Sivakugan

Publisher:

Cengage Learning

Fundamentals of Structural Analysis

Civil Engineering

ISBN:

9780073398006

Author:

Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning

Publisher:

McGraw-Hill Education

Sustainable Energy

Civil Engineering

ISBN:

9781337551663

Author:

DUNLAP, Richard A.

Publisher:

Cengage,

Traffic and Highway Engineering

Civil Engineering

ISBN:

9781305156241

Author:

Garber, Nicholas J.

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS