A triangular gate 1.20m base and 1.80m high is placed on the face of a dam as shown in the figure. Itsbase is hinged and the vertex is attached to a cylindrical buoy whose weight is 440 N. The externaldiameter of the buoy is 1.2m and the weight of the gate is 880 N. The mechanism is such that the buoywill open the gate if the water surface will rise higher than 4m. If YH,0 = 9.79 kN/m³%3D1440 Na. Compute the hydrostatic force acting normal to the gate.b. Compute the location of the normal force from the hingeof the gate.Hinged3mc. What is the length of the cable when the gate is about toopen?4m-1.20m880 N1.80m

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Answered: A triangular gate 1.20m base and 1.80m…

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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Civil engineering -Hydraulics
Determine the magnitude and location of the total hydrostatic force acting on the 2m x 4m gate shown in the figure. Ans. F= 733.16kN, 1.844m from the bottom of the tank parallel to the gate
3 A masonry dam 21m high, has a triangular cross section. The upstream side being vertical. The masonry weighs 23.544 kN/m". The water depth at the upstream side of the dam is 18m. Calculate the width of the base of the dam if the resultant reaction at the base is located 4/10 B from the toe. Round off your answer to a whole number. Answer: B = m 21m 18 m B = ?
Water flows at 2 m / s in a 3 m wide 2.5 m deep rectangular channel. There is a 1.10 m elevation on the downstream side of the channel as seen in the figure. Above the elevation, the channel widens to 3.75 m as shown in the figure If b2 = 3.75 m, what should be the maximum value of Δz to prevent suffocation? Draw the specific energy depth curve.
SITUATION. A closed cylindrical tank with 0.60 m diameter and 1.0 m height is fully-filled with water. The tank is rotated at 200 rpm. What is the pressure (kPa) at the circumference of the top base? O 34.74 O 44.55 29.55 O 19.74
n the crest gate on a dam shown in the figure, surface AB forms the arc of a circle of 6 m radius subtending 60° at the hinge. The gate is 8 m long with water surface at B. Compute the vertical component of the total pressure on AB. 6 m hinge 6 m' Unit weight of the liquid (y) Area of the liquid above the crest (A) Given length of the gate Vertical Hydrostatic Force (Fv) m kN m kN ***answer Hydrostatic Force Fv on the box below: Answer: 1059.438 The correct answer is: 355.75
Dr. Qassem H. Jalut Associate professor Example, The small dam shown in the figure is 8.5 m wide, An equilateral triangular gate (LM) that is 2.4-m in height is located along the lower face (KN) 5o that the apex is at M. Depth of water above the hinge (L) is 4.5 m. Calculate the magnitude and point of application of the force acting on side LM. deill hingecO 4.5 m he K L. fr=YA hc he H+! ونتراحا عن قوائين الربقة 2.4 m 45° hinge 8.5
There is a dam shaped like a semicircle with 45° angulation. The dam consists of two structures: one 20 m high, generated by a second degree function, and the other rectilinear 10 m high. The forces on the dam should be analyzed in order to prevent its rupture. Determine: A) The graph of the resulting force as a function of the water height at the bottom of the dam B) The resulting force for a water height of 10 m C) The resulting force for a water height of 20 m 5,0 m 10,0 m 30,0 m 17,5 m
Water flows at a rate of 120 L/s in a 30 cm diameter horizontal pipe connected to a 20 cm diameter pipe through a vertical reducer bend. The change in water direction of the reducing bend is 120o. The vertical distance between the entrance and outlet of the bend is 1.5 m and the pressure at its entrance is 70KPa. The total weight of the bend material and water contained in it is 90 kg. Calculate the horizontal and vertical components of the force required to hold the bend in place.
Determine the location of the total hydrostatic force acting on the 2m x 4m gate shown in the figure.
If a steel rectangular gate (see Figure 1) of 1.0m wide by 1.66 m high, is located in the wall of a reservoir. It is hinged at the top and acts as a relief valve such that when the water level reaches 1.35m above the top of the gate the gate starts to open allowing water to leave the reservoir. If the gate is inclined at 66º to the horizontal, and the density of steel is 7600 kg/m3, determine the thickness of the gate.

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