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7. Buoyancy/Stability A 3-m-wide barge weighs 20 kN empty. It is proposed that it carry a 250 kN load. Predict the draft height. The draft is height of the portion of the boat that will be underwater. The boat will be in salt water (S.G. = 1.025). Show work and include units. WATER 2m 10 m BARGE 6m draft

7. Buoyancy/Stability A 3-m-wide barge weighs 20 kN empty. It is proposed that it carry a 250 kN load. Predict the draft height. The draft is height of the portion of the boat that will be underwater. The boat will be in salt water (S.G. = 1.025). Show work and include units. WATER 2m 10 m BARGE 6m draft

Structural Analysis
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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### Buoyancy/Stability Problem #### Problem Statement: A 3-meter-wide barge weighs 20 kN empty. It is proposed that the barge carry a 250 kN load. Predict the draft height, which is the height of the portion of the boat that will be underwater. The boat will be in salt water with a specific gravity (S.G.) of 1.025. Show work and include units. #### Diagram Description: The diagram depicts a barge floating in water. The barge has a trapezoidal cross-section with the following dimensions: - Top width of the barge: 10 meters - Bottom width of the submerged portion: 6 meters - Height from the bottom of the barge to the draft line (the underwater portion): Indicated as "draft" The water is marked as "WATER," and there is an arrow pointing downward labeled "draft" signifying the submerged portion of the barge. #### Solution Approach: To solve this problem, one would calculate the draft using the concepts of buoyancy, where the weight of the barge and its load must equal the weight of the water displaced by the submerged part of the barge. Use the specific gravity and geometric dimensions to calculate the volume of water displaced, thus finding the draft height.
Transcribed Image Text:### Buoyancy/Stability Problem #### Problem Statement: A 3-meter-wide barge weighs 20 kN empty. It is proposed that the barge carry a 250 kN load. Predict the draft height, which is the height of the portion of the boat that will be underwater. The boat will be in salt water with a specific gravity (S.G.) of 1.025. Show work and include units. #### Diagram Description: The diagram depicts a barge floating in water. The barge has a trapezoidal cross-section with the following dimensions: - Top width of the barge: 10 meters - Bottom width of the submerged portion: 6 meters - Height from the bottom of the barge to the draft line (the underwater portion): Indicated as "draft" The water is marked as "WATER," and there is an arrow pointing downward labeled "draft" signifying the submerged portion of the barge. #### Solution Approach: To solve this problem, one would calculate the draft using the concepts of buoyancy, where the weight of the barge and its load must equal the weight of the water displaced by the submerged part of the barge. Use the specific gravity and geometric dimensions to calculate the volume of water displaced, thus finding the draft height.
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