The ramp of a ship has a weight of 200 lb and a center of mass at G. The ramp is attached to the ship with a pin at A. The ramp was lowered to hover just above point B (i.e. the reaction force at B becomes zero). Determine the cable force and the support reactions at A. a) Sketch a complete FBD of the ramp appropriate for determining the support reactions. b) Use your FBD to determine the support reactions at points A. Show all work. 411 20% .6 ft FBD:

The ramp of a ship has a weight of 200 lb and a center of mass at G. The ramp is attached to the ship with a pin at A. The ramp was lowered to hover just above point B (i.e. the reaction force at B becomes zero). Determine the cable force and the support reactions at A. a) Sketch a complete FBD of the ramp appropriate for determining the support reactions. b) Use your FBD to determine the support reactions at points A. Show all work. 411 20% .6 ft FBD:

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

Equilibrium and Support Reactions

Civil engineers deal with structures that are composed of several members connected or with individual members such as beams and columns. To analyze such structures, the condition of statics must be applied. Under the static condition, the members are considered to be in equilibrium under the action of forces, that is, the members are assumed to be having negligible velocity.

Question

The ramp of a ship has a weight of 200 lb and a center of mass at G. The ramp is attached to
the ship with a pin at A. The ramp was lowered to hover just above point B (i.e. the reaction force at
B becomes zero). Determine the cable force and the support reactions at A.
a) Sketch a complete FBD of the ramp appropriate for determining the support reactions.
b) Use your FBD to determine the support reactions at points A. Show all work.
B
20²
1 ft
3 f
20°
.6 ft
30
FBD:

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