A segmental bridge with a distributed weight of 77 kN/m is being constructed over a 20 meter deep valley. In the figure shown, the last segment is attached to the bridge beam and the bridge is almost finished. A hydraulic piston is used to push the bridge beam into its final position. Hereby, points A, B, and C will move to A', B', and C', respectively. The central pylon has an allowable yield moment capacity of 57660 kN*m, at its base. Calculate the largest friction coefficient between the bridge beam and the pylon top, so that no yielding in the pylon occurs. Total bridge length, L-114.3 meters. Note: Make reasonable assumptions, so that you may analyze the structure. piston pylon

A segmental bridge with a distributed weight of 77 kN/m is being constructed over a 20 meter deep valley. In the figure shown, the last segment is attached to the bridge beam and the bridge is almost finished. A hydraulic piston is used to push the bridge beam into its final position. Hereby, points A, B, and C will move to A', B', and C', respectively. The central pylon has an allowable yield moment capacity of 57660 kN*m, at its base. Calculate the largest friction coefficient between the bridge beam and the pylon top, so that no yielding in the pylon occurs. Total bridge length, L-114.3 meters. Note: Make reasonable assumptions, so that you may analyze the structure. piston pylon

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

The cross section of a concrete dam JKLMN as shown in Figure 1 is used to retain water. The specific weight of the concrete dam is 24 kN/m3 . The coefficient of friction between the base of the dam and the foundation is 0.45. For one meter dam length, calculate the maximum water depth, d to ensure the stability of the dam against;(a) Sliding.(b) Overturning
A masonry dam (sp.gr. = 2.4) of trapezoidal cross-section is 20 m high. It has a thickness of 2 m at the top and 14 m at the bottomas shown in the figure.Coef. of friction under the foundation is 0.80 and assuming there is hydrostatic upliftthat varies linearly from one-half the hydrostatic head at the upstream edgeof the dam to zero at the downstream edge.Determine
The pressure distribution over the base of a concrete (S =2.4) dam varies linearly, as shown in figure ,producing an uplift. Will the dam topple over (sum moments of all forces about the bottom, right-handcorner)? Use:(a) H =45 m(b) H = 60 m(c) H = 75 m
A horizontal bend in a pipeline conveying 1m^3/s of water gradually reduces from 600mm to 300mm in diameter and deflects the flow through an angle of 60 degrees. At the larger end, the pressure is 170kN/m^2. Determine the magnitude of the force exerted on the bend.
An 18, 000 lb inclined gate is constructed to contain a body of water with atotal depth of h = 8 ft. Given that the width of the gate is 3 ft, will the hydrostatic pressure be able to hold the weight of the gate?
Determine the vertical distance of the center of gravity of the curved gate from the water surface shown in the figure. The curved gate is 5.7 m long. The values of the vertical component (Fv) and the resultant force. (F) acting on the gate are 300 kN and 400 kN asap
The concrete gravity dam given in the figure has a width B=150 m (into the paper) 1. Calculate the hydrostatic force on the dam. 2. Assuming that the uplift force is 20% of the dam weight and that the static friction is 0.65 (between the dam and the soil), prove the the dam is table against sliding and against overturning around the point O.
A 3 m wide flat plate is placed vertically in a still water. If a = 2 m, b =8 m. Determine the horizontal force on the plate.
The face of a vertical dam has the shape of an isosceles trapezoid of altitude 11 ft, upper base 28 ft, and the lower base 20 ft. find the total force exerted by the water on the dam when the water is 8 ft deep. -fluid force formula
The section of a concrete gravity dam is shown in the figure. The depth of the upstream side is 6.0 m. Neglect the hydrostatic uplift and use unit weight concrete equal to 24 kN/m3. The coefficient of friction between the base of the dam and foundation is 0.4. Determine the following: (a) factor of safety against sliding (b) factor of safety against overturning (c)the overturning moment acting against the dam in KN-m.
The tank shown in the figure is 3 m wide into the paper. Neglect atmospheric pressure. Use ?????? = 9.79 kN/m³. Determine the following: A. vertical component of the total hydrostatic force on the quarter circle panel AB in kN B. Resultant hydrostatic force acting on the quarter circle panel AB in kN C. Angle that the resultant hydrostatic force make with the horizontal in degrees.
An open tank, 1.82 m square, weighs 3425 N and contains 0.91 m of water. It is acted upon by an unbalanced force of 10400 N parallel to a pair of sides. What is the force acting on the side with the greatest depth?