instructional guide
DESCRIPTION
Instructional Guide. Construction: Building and Beams. www.i3cubed.com. During this unit you are going to:. Explore forces that act on structures. Discover the strength of a beam varies. Design, construct, test, and evaluate paper beams. Forces. - PowerPoint PPT PresentationTRANSCRIPT
Instructional Guide
Construction: Building and Beams
www.i3cubed.com
During this unit you are going to:
Explore forces that act on structures.
Discover the strength of a beam varies.
Design, construct, test, and evaluate paper beams.
Forces
Compression - The act, process, or result of pressing or squeezing together.
Tension - The act or action of being stretched or the condition of being stretched.
Beam Efficiency
Beam Efficiency = Weight Beam HeldWeight of Beam X 100
Design Challenge
You are a structural engineer and you are helping your parents design a family room addition to a house that has a deck on the roof.The challenge is to design a deck strong enough to support family and friends. You will create the strongest beam possible. A successful beam will support family, friends and the deck itself. The strength/efficiency of the beam will be determined by dividing thefinal load by the beam’s weight.
EngineeringDesign Process
Step 1 – Identify a challenge
• What is the challenge?
• Brainstorm ways of constructing the beams out of one sheet of paper.
Step 2 – Explore Ideas
• Draw end and side views of two possible beams.
√ Identify a challenge
Step 3 – Plan and Develop
• Sketch the best idea.
• Sketch a refined design.
√ Identify a challenge
√ Explore Ideas
Step 4 – Testing and Evaluating
• How much weight did it hold?
• What can you do to make it stronger?
• Revise and draw design. What changes did you make? What are the differences from the first
design?
• Which design was better? Why?
√ Identify a challenge
√ Explore Ideas
√ Plan and Develop
Step 5 – Presenting the Solution
• What are the final dimensions, weight, and load?
• Determine the efficiency.• List the materials used.• How well did the project go?
Would you change anything?
√ Identify a challenge
√ Explore Ideas
√ Plan and Develop
√ Testing and Evaluating
Conclusion
Compare all of the beams with the class. How are they different? How are they similar? How could they be made better?
Discuss and design a final beam with the whole class.