3. Draw the Influence diagram of the given beam. A AMX 4m D 7m WX B 3m C A. Draw the influence line diagram for the reaction at point A. B. Draw the influence line diagram for the reaction at point B. C. Draw the influence line diagram for the MAXIMUM moment at point D. D. Determine the maximum moment at D due to a dead load of 5 kN/m a moving live load of 20 kN/m and two (2) movable concentrated loads 50 kN and 75 kN 2m apart. E. Determine the maximum shear at A, 7m from point C due to a dead load of 5 kN/m a moving live load of 20 kN/m and two (2) movable concentrated loads 50 kn and 75kn 2m apart. F. Determine the maximum moment at B, 4m from point A due to a dead load of 5 kN/m a moving live load of 20 kN/m and two (2) movable concentrated loads 50 kN and 75kN 2m apart.

3. Draw the Influence diagram of the given beam. A AMX 4m D 7m WX B 3m C A. Draw the influence line diagram for the reaction at point A. B. Draw the influence line diagram for the reaction at point B. C. Draw the influence line diagram for the MAXIMUM moment at point D. D. Determine the maximum moment at D due to a dead load of 5 kN/m a moving live load of 20 kN/m and two (2) movable concentrated loads 50 kN and 75 kN 2m apart. E. Determine the maximum shear at A, 7m from point C due to a dead load of 5 kN/m a moving live load of 20 kN/m and two (2) movable concentrated loads 50 kn and 75kn 2m apart. F. Determine the maximum moment at B, 4m from point A due to a dead load of 5 kN/m a moving live load of 20 kN/m and two (2) movable concentrated loads 50 kN and 75kN 2m apart.

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

Influence Lines

The graphs that show the variation of a function at a specific point on a beam or truss due to a unit load placed at any point along the structure are known as influence lines in engineering. Some common functions that are studied with influence lines are shear, moment, and deflection. In designing beams and trusses, it is important to use influence lines in structures where loads would move along their span such as bridges, crane rails, conveyor belts, floor girders, etc. The influence lines help to study where a load will create the maximum effect for any of the functions.

Question

3. Draw the Influence diagram of the given beam.
A
4m
D
7m
www
B
3m
C
A. Draw the influence line diagram for the reaction at point A.
B. Draw the influence line diagram for the reaction at point B.
C. Draw the influence line diagram for the MAXIMUM moment at point D.
D. Determine the maximum moment at D due to a dead load of 5 kN/m a moving live load of 20 kN/m and
two (2) movable concentrated loads 50 kN and 75 kN 2m apart.
E. Determine the maximum shear at A, 7m from point C due to a dead load of 5 kN/m a moving live load of
20 kN/m and two (2) movable concentrated loads 50 kn and 75kn 2m apart.
F. Determine the maximum moment at B, 4m from point A due to a dead load of 5 kN/m a moving live load
of 20 kN/m and two (2) movable concentrated loads 50 kN and 75kN 2m apart.

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