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CE 203:Structural Mechanics

CE 203:Structural Mechanics. Week # 1. Policy . Get to know each other Things to know about instructor policy Grading. What is structural mechanics?. Calculation of stresses i.e. relation with external loads Calculating deformations Evaluating structure stability.

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CE 203:Structural Mechanics

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  1. CE 203:Structural Mechanics Week # 1

  2. Policy • Get to know each other • Things to know about instructor policy • Grading

  3. What is structural mechanics? • Calculation of stresses i.e. relation with external loads • Calculating deformations • Evaluating structure stability

  4. What are the important steps in structural design? • Determine internal forces from statics • Know how the material behaves • Now determine required size, deflections and stability of structural members

  5. Types of forces • External forces : can be surface or body • Reactions • Internal

  6. Calculate internal forces at point C.

  7. Calculate internal forces at point C.

  8. Calculate the force in member AC.Given P= 200 kN

  9. Can we calculate the stress in AC • What about at B? • What about the bolts? • What are the different types of stresses that we see here?

  10. Concept of stress • Definition of average normal stress • Definition of average shear stress • Concept of allowable stress and safety factor

  11. Calculate the normal stress at point A. X-sectional area of I-beam is

  12. Shear stress

  13. Shear stress

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