Earthquake Design Module An introduction to Structural Engineering Jeff Mitchell Engineers Make a World of Difference Engineers use their knowledge to improve peoples lives in meaningful ways Engineers are creative problem solvers Engineers help shape the future Engineering is essential to our health, happiness and safety Engineers connect science to the real world What Will Students Learn? Basics of Buildings Forces and Loads on structures Strength of Materials Shapes and Orientation Earthquake Design project Seismic Design Project Design Estimate Construct Test Evaluate Explore Engineering! Learn about engineering opportunities Test model buildings on shake tables Speak with engineering students and groups What does it take to go to college? What college can do for the students? Feel the Stress Teachengineering.org Feel the Stress Explore the concept of stress through physical experience and math Apply the knowledge of the experience to real engineering problems Procedure Learning Objectives Explain the concept of stress both intuitively and mathematically Understand why stress is important when designing a structure Relate a real experience to mathematical formulas Activity Information Subject Areas: algebra, geometry, measurement, physics Grade Level: 9 (6-10) Time Required: 50 minutes Group Size: Variable Cost: $0.50 per individual Materials: Mechanical pencil, ruler Engineering Category: Relates math concept to engineering Educational Standards: Missouri science (2005): Strand 2, Strand 7 Missouri math (2004): Measurement, Algebraic Relationships, Number and Operations, Geometric and Spatial Relationships Application to Algebra Connection to Engineering Concept of STRESS is the backbone of mechanics of materials and the majority of structural engineering Allows engineers to evaluate structural components for failure Connects what was learned earlier about internal forces to actual engineering problems Sample Discussion and Assessment Questions If you were designing a room to hold boxes of books, would you locate the storage area for the books in one small corner of the room or would you distribute the storage area for the books over a larger area? Suppose you were an engineer designing a steel bridge column. You analyze the column and find that it is over the stress limit for steel. What can you do to the column to lower the stress? Is decreasing the amount of force applied to an object the only way to decrease the stress on the object? What happens to a structural member when it is stressed beyond the limit stress for the material it is made out of? Why do engineers care about stress? Questions?