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Structural Engineering CPU Objectives Activity 1 1-1. Discover how adding one piece of material can make a structure significantly stronger. 1-2. Define structure and identify key elements in a structure's design. 1-3. Consider why structural systems fail. 1-4. Explore what a safety factor is and how it is built into products. 1-5. Apply the safety factor formula to a given problem. Activity 2 2-1. Explore the history and importance of engineering principles. 2-2. Identify the differences between a live and dead load. 2-3. Describe the forces that affect a structure. 2-4. Define engineering. 2-5. Offer examples of the different branches of engineering. 2-6. Describe the career of a civil engineer. Activity 3 3-1. Consider the stresses that can affect a structure and its material. 3-2. Use software to illustrate how members of a structure are affected when placed in compression and tension. 3-3. Explore a career in construction and building inspection. Activity 4 4-1. Use the steps of the design process to solve a challenge. 4-2. Build an index card tower to meet certain specifications. 4-3. Document and describe how various steps of the design process were implemented during the challenge. Activity 5 5-1. Define the attributes of beams and trusses. 5-2. Identify the stresses applied to a truss or beam. 5-3. Classify several types of trusses. 5-4. Use ModelSmart 3D to build three trusses. 5-5. Analyze and document the breaking load and structural weight of the three trusses. 5-6. Define efficiency. 5-7. Calculate the efficiency of the three trusses and determine which one is the strongest. Activity 6 6-1. Use K’NEX to build the three trusses you were working with in the last activity. 6-2. Determine the structural weight and breaking load of the three K’NEX trusses. 6-3. Calculate the efficiency of the three K’NEX trusses and determine which one was the most efficient. 6-4. Analyze differences in trusses built in ModelSmart 3D and those built with K’NEX. 6-5. Explore the career of a mining engineer. Activity 7 7-1. Investigate the history of bridges. 7-2. Discover the three types of beam bridges (girder, cantilever, and truss). 7-3. Identify the four types of arch bridges (deck, half-through, through, and bow string). 7-4. Read about the two types of tension bridges (suspension and cable-stayed). 7-5. Use K'NEX to build a model bridge. Activity 8 8-1. Use ModelSmart 3D to begin designing and building towers that meet certain load and efficiency requirements. 8-2. Begin testing and revising the towers in order to meet the specifications. Activity 9 9-1. Complete the construction, testing, and revision of the towers you began building in the last activity. 9-2. Recognize the various parts of a building. 9-3. Examine the structural elements of the arch. 9-4. Discover different types of arches. In Activity 15, students will take the Vocabulary Test and the Post-test. Activity 10 through Activity 15 require students to complete challenges to meet numerous high level problem-solving objectives. The objectives for the challenges in this CPU include: Challenge 1 You will conduct research on a career of your choice in the Structural Engineering field. Share your findings in a presentation. Challenge 2 You will design and construct a model bridge that will meet certain specifications. You will test the model using the LoadStar structure tester. Challenge 3 You will design and construct a model tower that will meet certain specifications. You will test the model using the LoadStar structure tester. Challenge 4 You and your partner will each construct a self-supporting tower made of one 8½ in. x 11 in. sheet of paper. Your goal is to make the tallest tower with the greatest stability. Challenge 5 You will conduct research on the construction of a famous bridge or tower. Share your findings in a presentation. Challenge 6 You will conduct research on how a chosen natural disaster affects the way structures are built. Share your findings in a presentation. |
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